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Merge remote-tracking branch 'regulator/fix/max77802' into regulator-linus
[mirror_ubuntu-artful-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>
4a71df50 19#include <linux/ip.h>
64ef8957 20#include <linux/ipv6.h>
4a71df50
FB		 21#include <linux/inetdevice.h>
22#include <linux/igmp.h>
5a0e3ad6 23#include <linux/slab.h>
7ff0bcf6 24#include <linux/if_vlan.h>
4a71df50
FB		 25
26#include <net/ip.h>
27#include <net/arp.h>
87e7597b
DM		 28#include <net/route.h>
29#include <net/ip6_fib.h>
64ef8957 30#include <net/ip6_checksum.h>
b3332930 31#include <net/iucv/af_iucv.h>
5f78e29c 32#include <linux/hashtable.h>
4a71df50 33
4a71df50 34#include "qeth_l3.h"
4a71df50 35
d0ddf30f 36
4a71df50 37static int qeth_l3_set_offline(struct ccwgroup_device *);
4a71df50
FB		 38static int qeth_l3_stop(struct net_device *);
39static void qeth_l3_set_multicast_list(struct net_device *);
4a71df50
FB		 40static int qeth_l3_register_addr_entry(struct qeth_card *,
41 struct qeth_ipaddr *);
42static int qeth_l3_deregister_addr_entry(struct qeth_card *,
43 struct qeth_ipaddr *);
4a71df50 44
4a71df50
FB		 45static int qeth_l3_isxdigit(char *buf)
46{
47 while (*buf) {
48 if (!isxdigit(*buf++))
49 return 0;
50 }
51 return 1;
52}
53
56530d68 54static void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
4a71df50 55{
5f78e29c 56 sprintf(buf, "%pI4", addr);
4a71df50
FB		 57}
58
56530d68 59static int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
4a71df50
FB		 60{
61 int count = 0, rc = 0;
a68be015 62 unsigned int in[4];
4a71df50
FB		 63 char c;
64
65 rc = sscanf(buf, "%u.%u.%u.%u%c",
66 &in[0], &in[1], &in[2], &in[3], &c);
67 if (rc != 4 && (rc != 5 || c != '\n'))
68 return -EINVAL;
69 for (count = 0; count < 4; count++) {
70 if (in[count] > 255)
71 return -EINVAL;
72 addr[count] = in[count];
73 }
74 return 0;
75}
76
56530d68 77static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
4a71df50 78{
963a9fd2 79 sprintf(buf, "%pI6", addr);
4a71df50
FB		 80}
81
56530d68 82static int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
4a71df50
FB		 83{
84 const char *end, *end_tmp, *start;
85 __u16 *in;
86 char num[5];
87 int num2, cnt, out, found, save_cnt;
88 unsigned short in_tmp[8] = {0, };
89
90 cnt = out = found = save_cnt = num2 = 0;
91 end = start = buf;
92 in = (__u16 *) addr;
93 memset(in, 0, 16);
94 while (*end) {
95 end = strchr(start, ':');
96 if (end == NULL) {
97 end = buf + strlen(buf);
98 end_tmp = strchr(start, '\n');
99 if (end_tmp != NULL)
100 end = end_tmp;
101 out = 1;
102 }
103 if ((end - start)) {
104 memset(num, 0, 5);
105 if ((end - start) > 4)
106 return -EINVAL;
107 memcpy(num, start, end - start);
108 if (!qeth_l3_isxdigit(num))
109 return -EINVAL;
110 sscanf(start, "%x", &num2);
111 if (found)
112 in_tmp[save_cnt++] = num2;
113 else
114 in[cnt++] = num2;
115 if (out)
116 break;
117 } else {
118 if (found)
119 return -EINVAL;
120 found = 1;
121 }
122 start = ++end;
123 }
124 if (cnt + save_cnt > 8)
125 return -EINVAL;
126 cnt = 7;
127 while (save_cnt)
128 in[cnt--] = in_tmp[--save_cnt];
129 return 0;
130}
131
132void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
133 char *buf)
134{
135 if (proto == QETH_PROT_IPV4)
136 qeth_l3_ipaddr4_to_string(addr, buf);
137 else if (proto == QETH_PROT_IPV6)
138 qeth_l3_ipaddr6_to_string(addr, buf);
139}
140
141int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
142 __u8 *addr)
143{
144 if (proto == QETH_PROT_IPV4)
145 return qeth_l3_string_to_ipaddr4(buf, addr);
146 else if (proto == QETH_PROT_IPV6)
147 return qeth_l3_string_to_ipaddr6(buf, addr);
148 else
149 return -EINVAL;
150}
151
152static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
153{
154 int i, j;
155 u8 octet;
156
157 for (i = 0; i < len; ++i) {
158 octet = addr[i];
159 for (j = 7; j >= 0; --j) {
160 bits[i*8 + j] = octet & 1;
161 octet >>= 1;
162 }
163 }
164}
165
6298263a 166int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
4a71df50
FB		 167 struct qeth_ipaddr *addr)
168{
169 struct qeth_ipato_entry *ipatoe;
170 u8 addr_bits[128] = {0, };
171 u8 ipatoe_bits[128] = {0, };
172 int rc = 0;
173
174 if (!card->ipato.enabled)
175 return 0;
176
177 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
178 (addr->proto == QETH_PROT_IPV4)? 4:16);
179 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
180 if (addr->proto != ipatoe->proto)
181 continue;
182 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
183 (ipatoe->proto == QETH_PROT_IPV4) ?
184 4 : 16);
185 if (addr->proto == QETH_PROT_IPV4)
186 rc = !memcmp(addr_bits, ipatoe_bits,
187 min(32, ipatoe->mask_bits));
188 else
189 rc = !memcmp(addr_bits, ipatoe_bits,
190 min(128, ipatoe->mask_bits));
191 if (rc)
192 break;
193 }
194 /* invert? */
195 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
196 rc = !rc;
197 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
198 rc = !rc;
199
200 return rc;
201}
202
5f78e29c
LD		 203inline int
204qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr *addr1, struct qeth_ipaddr *addr2)
4a71df50 205{
5f78e29c
LD		 206 return addr1->proto == addr2->proto &&
207 !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) &&
208 !memcmp(&addr1->mac, &addr2->mac, sizeof(addr1->mac));
209}
4a71df50 210
5f78e29c
LD		 211static struct qeth_ipaddr *
212qeth_l3_ip_from_hash(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
213{
214 struct qeth_ipaddr *addr;
215
216 if (tmp_addr->is_multicast) {
217 hash_for_each_possible(card->ip_mc_htable, addr,
218 hnode, qeth_l3_ipaddr_hash(tmp_addr))
219 if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
220 return addr;
4a71df50 221 } else {
5f78e29c
LD		 222 hash_for_each_possible(card->ip_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 }
5f78e29c
LD		 227
228 return NULL;
4a71df50
FB		 229}
230
5f78e29c 231int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
4a71df50 232{
4a71df50 233 int rc = 0;
5f78e29c 234 struct qeth_ipaddr *addr;
4a71df50 235
847a50fd 236 QETH_CARD_TEXT(card, 4, "delip");
4a71df50 237
5f78e29c
LD		 238 if (tmp_addr->proto == QETH_PROT_IPV4)
239 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
4a71df50 240 else {
5f78e29c
LD		 241 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
242 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
4a71df50 243 }
5f78e29c
LD		 244
245 addr = qeth_l3_ip_from_hash(card, tmp_addr);
246 if (!addr)
247 return -ENOENT;
248
249 addr->ref_counter--;
250 if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
251 return rc;
252 if (addr->in_progress)
253 return -EINPROGRESS;
254
a7531c1c
UB		 255 if (!qeth_card_hw_is_reachable(card)) {
256 addr->disp_flag = QETH_DISP_ADDR_DELETE;
257 return 0;
258 }
259
5f78e29c
LD		 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
a7531c1c
UB		 299 if (!qeth_card_hw_is_reachable(card)) {
300 addr->disp_flag = QETH_DISP_ADDR_ADD;
301 return 0;
302 }
303
5f78e29c
LD		 304 /* qeth_l3_register_addr_entry can go to sleep
305 * if we add a IPV4 addr. It is caused by the reason
306 * that SETIP ipa cmd starts ARP staff for IPV4 addr.
307 * Thus we should unlock spinlock, and make a protection
308 * using in_progress variable to indicate that there is
309 * an hardware operation with this IPV4 address
310 */
311 if (addr->proto == QETH_PROT_IPV4) {
312 addr->in_progress = 1;
313 spin_unlock_bh(&card->ip_lock);
314 rc = qeth_l3_register_addr_entry(card, addr);
315 spin_lock_bh(&card->ip_lock);
316 addr->in_progress = 0;
317 } else
318 rc = qeth_l3_register_addr_entry(card, addr);
319
320 if (!rc || (rc == IPA_RC_DUPLICATE_IP_ADDRESS) ||
321 (rc == IPA_RC_LAN_OFFLINE)) {
322 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
323 if (addr->ref_counter < 1) {
324 qeth_l3_delete_ip(card, addr);
325 kfree(addr);
326 }
327 } else {
328 hash_del(&addr->hnode);
329 kfree(addr);
330 }
331 } else {
332 if (addr->type == QETH_IP_TYPE_NORMAL)
333 addr->ref_counter++;
4a71df50 334 }
5f78e29c 335
4a71df50
FB		 336 return rc;
337}
338
339
b3332930 340struct qeth_ipaddr *qeth_l3_get_addr_buffer(
4a71df50
FB		 341 enum qeth_prot_versions prot)
342{
343 struct qeth_ipaddr *addr;
344
345 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5f78e29c 346 if (!addr)
4a71df50 347 return NULL;
5f78e29c 348
4a71df50 349 addr->type = QETH_IP_TYPE_NORMAL;
5f78e29c 350 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
4a71df50 351 addr->proto = prot;
4a71df50 352
5f78e29c 353 return addr;
4a71df50
FB		 354}
355
5f78e29c 356static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
4a71df50
FB		 357{
358 struct qeth_ipaddr *addr;
5f78e29c
LD		 359 struct hlist_node *tmp;
360 int i;
4a71df50 361
5f78e29c 362 QETH_CARD_TEXT(card, 4, "clearip");
4a71df50 363
5f78e29c 364 if (recover && card->options.sniffer)
76b11f8e 365 return;
f154b79c 366
5f78e29c
LD		 367 spin_lock_bh(&card->ip_lock);
368
369 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
370 if (!recover) {
371 hash_del(&addr->hnode);
372 kfree(addr);
4a71df50
FB		 373 continue;
374 }
5f78e29c 375 addr->disp_flag = QETH_DISP_ADDR_ADD;
4a71df50 376 }
4a71df50 377
5f78e29c 378 spin_unlock_bh(&card->ip_lock);
4a71df50 379
5f78e29c
LD		 380 spin_lock_bh(&card->mclock);
381
382 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
383 hash_del(&addr->hnode);
4a71df50
FB		 384 kfree(addr);
385 }
386
5f78e29c
LD		 387 spin_unlock_bh(&card->mclock);
388
4a71df50 389
5f78e29c
LD		 390}
391static void qeth_l3_recover_ip(struct qeth_card *card)
4a71df50 392{
5f78e29c
LD		 393 struct qeth_ipaddr *addr;
394 struct hlist_node *tmp;
395 int i;
396 int rc;
4a71df50 397
a7531c1c 398 QETH_CARD_TEXT(card, 4, "recovrip");
5f78e29c
LD		 399
400 spin_lock_bh(&card->ip_lock);
401
402 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
a7531c1c
UB		 403 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
404 qeth_l3_deregister_addr_entry(card, addr);
405 hash_del(&addr->hnode);
406 kfree(addr);
407 } else if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
5f78e29c
LD		 408 if (addr->proto == QETH_PROT_IPV4) {
409 addr->in_progress = 1;
410 spin_unlock_bh(&card->ip_lock);
411 rc = qeth_l3_register_addr_entry(card, addr);
412 spin_lock_bh(&card->ip_lock);
413 addr->in_progress = 0;
414 } else
415 rc = qeth_l3_register_addr_entry(card, addr);
416
417 if (!rc) {
418 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
a7531c1c 419 if (addr->ref_counter < 1)
5f78e29c 420 qeth_l3_delete_ip(card, addr);
5f78e29c
LD		 421 } else {
422 hash_del(&addr->hnode);
423 kfree(addr);
424 }
425 }
426 }
4a71df50 427
5f78e29c 428 spin_unlock_bh(&card->ip_lock);
4a71df50 429
4a71df50
FB		 430}
431
432static int qeth_l3_send_setdelmc(struct qeth_card *card,
433 struct qeth_ipaddr *addr, int ipacmd)
434{
435 int rc;
436 struct qeth_cmd_buffer *iob;
437 struct qeth_ipa_cmd *cmd;
438
847a50fd 439 QETH_CARD_TEXT(card, 4, "setdelmc");
4a71df50
FB		 440
441 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
1aec42bc
TR		 442 if (!iob)
443 return -ENOMEM;
4a71df50
FB		 444 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
445 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
446 if (addr->proto == QETH_PROT_IPV6)
447 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
448 sizeof(struct in6_addr));
449 else
450 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
451
452 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
453
454 return rc;
455}
456
457static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
458{
459 int i, j;
460 for (i = 0; i < 16; i++) {
461 j = (len) - (i * 8);
462 if (j >= 8)
463 netmask[i] = 0xff;
464 else if (j > 0)
465 netmask[i] = (u8)(0xFF00 >> j);
466 else
467 netmask[i] = 0;
468 }
469}
470
471static int qeth_l3_send_setdelip(struct qeth_card *card,
472 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
473{
474 int rc;
475 struct qeth_cmd_buffer *iob;
476 struct qeth_ipa_cmd *cmd;
477 __u8 netmask[16];
478
847a50fd
CO		 479 QETH_CARD_TEXT(card, 4, "setdelip");
480 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
4a71df50
FB		 481
482 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
1aec42bc
TR		 483 if (!iob)
484 return -ENOMEM;
4a71df50
FB		 485 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
486 if (addr->proto == QETH_PROT_IPV6) {
487 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
488 sizeof(struct in6_addr));
489 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
490 memcpy(cmd->data.setdelip6.mask, netmask,
491 sizeof(struct in6_addr));
492 cmd->data.setdelip6.flags = flags;
493 } else {
494 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
495 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
496 cmd->data.setdelip4.flags = flags;
497 }
498
499 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
500
501 return rc;
502}
503
504static int qeth_l3_send_setrouting(struct qeth_card *card,
505 enum qeth_routing_types type, enum qeth_prot_versions prot)
506{
507 int rc;
508 struct qeth_ipa_cmd *cmd;
509 struct qeth_cmd_buffer *iob;
510
847a50fd 511 QETH_CARD_TEXT(card, 4, "setroutg");
4a71df50 512 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
1aec42bc
TR		 513 if (!iob)
514 return -ENOMEM;
4a71df50
FB		 515 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
516 cmd->data.setrtg.type = (type);
517 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
518
519 return rc;
520}
521
82e2e782 522static int qeth_l3_correct_routing_type(struct qeth_card *card,
4a71df50
FB		 523 enum qeth_routing_types *type, enum qeth_prot_versions prot)
524{
525 if (card->info.type == QETH_CARD_TYPE_IQD) {
526 switch (*type) {
527 case NO_ROUTER:
528 case PRIMARY_CONNECTOR:
529 case SECONDARY_CONNECTOR:
530 case MULTICAST_ROUTER:
82e2e782 531 return 0;
4a71df50
FB		 532 default:
533 goto out_inval;
534 }
535 } else {
536 switch (*type) {
537 case NO_ROUTER:
538 case PRIMARY_ROUTER:
539 case SECONDARY_ROUTER:
82e2e782 540 return 0;
4a71df50
FB		 541 case MULTICAST_ROUTER:
542 if (qeth_is_ipafunc_supported(card, prot,
543 IPA_OSA_MC_ROUTER))
82e2e782 544 return 0;
4a71df50
FB		 545 default:
546 goto out_inval;
547 }
548 }
549out_inval:
4a71df50 550 *type = NO_ROUTER;
82e2e782 551 return -EINVAL;
4a71df50
FB		 552}
553
554int qeth_l3_setrouting_v4(struct qeth_card *card)
555{
556 int rc;
557
847a50fd 558 QETH_CARD_TEXT(card, 3, "setrtg4");
4a71df50 559
82e2e782 560 rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
4a71df50 561 QETH_PROT_IPV4);
82e2e782
SR		 562 if (rc)
563 return rc;
4a71df50
FB		 564
565 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
566 QETH_PROT_IPV4);
567 if (rc) {
568 card->options.route4.type = NO_ROUTER;
14cc21b6
FB		 569 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
570 " on %s. Type set to 'no router'.\n", rc,
571 QETH_CARD_IFNAME(card));
4a71df50
FB		 572 }
573 return rc;
574}
575
576int qeth_l3_setrouting_v6(struct qeth_card *card)
577{
578 int rc = 0;
579
847a50fd 580 QETH_CARD_TEXT(card, 3, "setrtg6");
4a71df50
FB		 581#ifdef CONFIG_QETH_IPV6
582
583 if (!qeth_is_supported(card, IPA_IPV6))
584 return 0;
82e2e782 585 rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
4a71df50 586 QETH_PROT_IPV6);
82e2e782
SR		 587 if (rc)
588 return rc;
4a71df50
FB		 589
590 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
591 QETH_PROT_IPV6);
592 if (rc) {
593 card->options.route6.type = NO_ROUTER;
14cc21b6
FB		 594 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
595 " on %s. Type set to 'no router'.\n", rc,
596 QETH_CARD_IFNAME(card));
4a71df50
FB		 597 }
598#endif
599 return rc;
600}
601
602/*
603 * IP address takeover related functions
604 */
605static void qeth_l3_clear_ipato_list(struct qeth_card *card)
606{
4a71df50 607 struct qeth_ipato_entry *ipatoe, *tmp;
4a71df50 608
5f78e29c
LD		 609 spin_lock_bh(&card->ip_lock);
610
4a71df50
FB		 611 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
612 list_del(&ipatoe->entry);
613 kfree(ipatoe);
614 }
5f78e29c
LD		 615
616 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 617}
618
619int qeth_l3_add_ipato_entry(struct qeth_card *card,
620 struct qeth_ipato_entry *new)
621{
622 struct qeth_ipato_entry *ipatoe;
4a71df50
FB		 623 int rc = 0;
624
847a50fd 625 QETH_CARD_TEXT(card, 2, "addipato");
5f78e29c
LD		 626
627 spin_lock_bh(&card->ip_lock);
628
4a71df50
FB		 629 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
630 if (ipatoe->proto != new->proto)
631 continue;
632 if (!memcmp(ipatoe->addr, new->addr,
633 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
634 (ipatoe->mask_bits == new->mask_bits)) {
4a71df50
FB		 635 rc = -EEXIST;
636 break;
637 }
638 }
5f78e29c 639
4a71df50
FB		 640 if (!rc)
641 list_add_tail(&new->entry, &card->ipato.entries);
642
5f78e29c
LD		 643 spin_unlock_bh(&card->ip_lock);
644
4a71df50
FB		 645 return rc;
646}
647
648void qeth_l3_del_ipato_entry(struct qeth_card *card,
649 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
650{
651 struct qeth_ipato_entry *ipatoe, *tmp;
4a71df50 652
847a50fd 653 QETH_CARD_TEXT(card, 2, "delipato");
5f78e29c
LD		 654
655 spin_lock_bh(&card->ip_lock);
656
4a71df50
FB		 657 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
658 if (ipatoe->proto != proto)
659 continue;
660 if (!memcmp(ipatoe->addr, addr,
661 (proto == QETH_PROT_IPV4)? 4:16) &&
662 (ipatoe->mask_bits == mask_bits)) {
663 list_del(&ipatoe->entry);
664 kfree(ipatoe);
665 }
666 }
5f78e29c
LD		 667
668 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 669}
670
671/*
672 * VIPA related functions
673 */
674int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
675 const u8 *addr)
676{
677 struct qeth_ipaddr *ipaddr;
4a71df50
FB		 678 int rc = 0;
679
680 ipaddr = qeth_l3_get_addr_buffer(proto);
681 if (ipaddr) {
682 if (proto == QETH_PROT_IPV4) {
847a50fd 683 QETH_CARD_TEXT(card, 2, "addvipa4");
4a71df50
FB		 684 memcpy(&ipaddr->u.a4.addr, addr, 4);
685 ipaddr->u.a4.mask = 0;
686 } else if (proto == QETH_PROT_IPV6) {
847a50fd 687 QETH_CARD_TEXT(card, 2, "addvipa6");
4a71df50
FB		 688 memcpy(&ipaddr->u.a6.addr, addr, 16);
689 ipaddr->u.a6.pfxlen = 0;
690 }
691 ipaddr->type = QETH_IP_TYPE_VIPA;
692 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
693 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
694 } else
695 return -ENOMEM;
5f78e29c
LD		 696
697 spin_lock_bh(&card->ip_lock);
698
732a59cb 699 if (qeth_l3_ip_from_hash(card, ipaddr))
4a71df50 700 rc = -EEXIST;
5f78e29c
LD		 701 else
702 qeth_l3_add_ip(card, ipaddr);
703
704 spin_unlock_bh(&card->ip_lock);
705
706 kfree(ipaddr);
707
4a71df50
FB		 708 return rc;
709}
710
711void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
712 const u8 *addr)
713{
714 struct qeth_ipaddr *ipaddr;
715
716 ipaddr = qeth_l3_get_addr_buffer(proto);
717 if (ipaddr) {
718 if (proto == QETH_PROT_IPV4) {
847a50fd 719 QETH_CARD_TEXT(card, 2, "delvipa4");
4a71df50
FB		 720 memcpy(&ipaddr->u.a4.addr, addr, 4);
721 ipaddr->u.a4.mask = 0;
722 } else if (proto == QETH_PROT_IPV6) {
847a50fd 723 QETH_CARD_TEXT(card, 2, "delvipa6");
4a71df50
FB		 724 memcpy(&ipaddr->u.a6.addr, addr, 16);
725 ipaddr->u.a6.pfxlen = 0;
726 }
727 ipaddr->type = QETH_IP_TYPE_VIPA;
728 } else
729 return;
5f78e29c
LD		 730
731 spin_lock_bh(&card->ip_lock);
732 qeth_l3_delete_ip(card, ipaddr);
733 spin_unlock_bh(&card->ip_lock);
734
735 kfree(ipaddr);
4a71df50
FB		 736}
737
738/*
739 * proxy ARP related functions
740 */
741int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
742 const u8 *addr)
743{
744 struct qeth_ipaddr *ipaddr;
4a71df50
FB		 745 int rc = 0;
746
747 ipaddr = qeth_l3_get_addr_buffer(proto);
748 if (ipaddr) {
749 if (proto == QETH_PROT_IPV4) {
847a50fd 750 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 751 memcpy(&ipaddr->u.a4.addr, addr, 4);
752 ipaddr->u.a4.mask = 0;
753 } else if (proto == QETH_PROT_IPV6) {
847a50fd 754 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 755 memcpy(&ipaddr->u.a6.addr, addr, 16);
756 ipaddr->u.a6.pfxlen = 0;
757 }
5f78e29c 758
4a71df50
FB		 759 ipaddr->type = QETH_IP_TYPE_RXIP;
760 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
761 ipaddr->del_flags = 0;
762 } else
763 return -ENOMEM;
5f78e29c
LD		 764
765 spin_lock_bh(&card->ip_lock);
766
732a59cb 767 if (qeth_l3_ip_from_hash(card, ipaddr))
4a71df50 768 rc = -EEXIST;
5f78e29c
LD		 769 else
770 qeth_l3_add_ip(card, ipaddr);
771
772 spin_unlock_bh(&card->ip_lock);
773
774 kfree(ipaddr);
775
776 return rc;
4a71df50
FB		 777}
778
779void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
780 const u8 *addr)
781{
782 struct qeth_ipaddr *ipaddr;
783
784 ipaddr = qeth_l3_get_addr_buffer(proto);
785 if (ipaddr) {
786 if (proto == QETH_PROT_IPV4) {
847a50fd 787 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 788 memcpy(&ipaddr->u.a4.addr, addr, 4);
789 ipaddr->u.a4.mask = 0;
790 } else if (proto == QETH_PROT_IPV6) {
847a50fd 791 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 792 memcpy(&ipaddr->u.a6.addr, addr, 16);
793 ipaddr->u.a6.pfxlen = 0;
794 }
795 ipaddr->type = QETH_IP_TYPE_RXIP;
796 } else
797 return;
5f78e29c
LD		 798
799 spin_lock_bh(&card->ip_lock);
800 qeth_l3_delete_ip(card, ipaddr);
801 spin_unlock_bh(&card->ip_lock);
802
803 kfree(ipaddr);
4a71df50
FB		 804}
805
806static int qeth_l3_register_addr_entry(struct qeth_card *card,
807 struct qeth_ipaddr *addr)
808{
809 char buf[50];
810 int rc = 0;
811 int cnt = 3;
812
5f78e29c 813
4a71df50 814 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 815 QETH_CARD_TEXT(card, 2, "setaddr4");
816 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 817 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 818 QETH_CARD_TEXT(card, 2, "setaddr6");
819 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
820 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 821 } else {
847a50fd
CO		 822 QETH_CARD_TEXT(card, 2, "setaddr?");
823 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 824 }
825 do {
826 if (addr->is_multicast)
827 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
828 else
829 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
830 addr->set_flags);
831 if (rc)
847a50fd 832 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 833 } while ((--cnt > 0) && rc);
834 if (rc) {
847a50fd 835 QETH_CARD_TEXT(card, 2, "FAILED");
4a71df50 836 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
74eacdb9
FB		 837 dev_warn(&card->gdev->dev,
838 "Registering IP address %s failed\n", buf);
4a71df50
FB		 839 }
840 return rc;
841}
842
843static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
844 struct qeth_ipaddr *addr)
845{
846 int rc = 0;
847
848 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 849 QETH_CARD_TEXT(card, 2, "deladdr4");
850 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 851 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 852 QETH_CARD_TEXT(card, 2, "deladdr6");
853 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
854 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 855 } else {
847a50fd
CO		 856 QETH_CARD_TEXT(card, 2, "deladdr?");
857 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 858 }
859 if (addr->is_multicast)
860 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
861 else
862 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
863 addr->del_flags);
c4cef07c 864 if (rc)
847a50fd 865 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 866
867 return rc;
868}
869
870static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
871{
872 if (cast_type == RTN_MULTICAST)
873 return QETH_CAST_MULTICAST;
874 if (cast_type == RTN_BROADCAST)
875 return QETH_CAST_BROADCAST;
876 return QETH_CAST_UNICAST;
877}
878
879static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
880{
881 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
882 if (cast_type == RTN_MULTICAST)
883 return ct | QETH_CAST_MULTICAST;
884 if (cast_type == RTN_ANYCAST)
885 return ct | QETH_CAST_ANYCAST;
886 if (cast_type == RTN_BROADCAST)
887 return ct | QETH_CAST_BROADCAST;
888 return ct | QETH_CAST_UNICAST;
889}
890
4a71df50
FB		 891static int qeth_l3_setadapter_parms(struct qeth_card *card)
892{
893 int rc;
894
d11ba0c4 895 QETH_DBF_TEXT(SETUP, 2, "setadprm");
4a71df50
FB		 896
897 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
74eacdb9
FB		 898 dev_info(&card->gdev->dev,
899 "set adapter parameters not supported.\n");
d11ba0c4 900 QETH_DBF_TEXT(SETUP, 2, " notsupp");
4a71df50
FB		 901 return 0;
902 }
903 rc = qeth_query_setadapterparms(card);
904 if (rc) {
74eacdb9 905 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
7f6d95e7 906 "0x%x\n", dev_name(&card->gdev->dev), rc);
4a71df50
FB		 907 return rc;
908 }
909 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
910 rc = qeth_setadpparms_change_macaddr(card);
911 if (rc)
74eacdb9 912 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
6ea2fde1 913 " address failed\n");
4a71df50
FB		 914 }
915
4a71df50
FB		 916 return rc;
917}
918
4a71df50
FB		 919#ifdef CONFIG_QETH_IPV6
920static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
921 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
922{
923 int rc;
924 struct qeth_cmd_buffer *iob;
925
847a50fd 926 QETH_CARD_TEXT(card, 4, "simassp6");
b475e316 927 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
4a71df50 928 0, QETH_PROT_IPV6);
1aec42bc
TR		 929 if (!iob)
930 return -ENOMEM;
4d7def2a 931 rc = qeth_send_setassparms(card, iob, 0, 0,
8f43fb00 932 qeth_setassparms_cb, NULL);
4a71df50
FB		 933 return rc;
934}
935#endif
936
4a71df50
FB		 937static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
938{
939 int rc;
940
847a50fd 941 QETH_CARD_TEXT(card, 3, "ipaarp");
4a71df50
FB		 942
943 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
74eacdb9
FB		 944 dev_info(&card->gdev->dev,
945 "ARP processing not supported on %s!\n",
946 QETH_CARD_IFNAME(card));
4a71df50
FB		 947 return 0;
948 }
4d7def2a
TR		 949 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
950 IPA_CMD_ASS_START, 0);
4a71df50 951 if (rc) {
74eacdb9
FB		 952 dev_warn(&card->gdev->dev,
953 "Starting ARP processing support for %s failed\n",
954 QETH_CARD_IFNAME(card));
4a71df50
FB		 955 }
956 return rc;
957}
958
959static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
960{
961 int rc;
962
847a50fd 963 QETH_CARD_TEXT(card, 3, "ipaipfrg");
4a71df50
FB		 964
965 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
74eacdb9
FB		 966 dev_info(&card->gdev->dev,
967 "Hardware IP fragmentation not supported on %s\n",
968 QETH_CARD_IFNAME(card));
4a71df50
FB		 969 return -EOPNOTSUPP;
970 }
971
4d7def2a 972 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
4a71df50
FB		 973 IPA_CMD_ASS_START, 0);
974 if (rc) {
74eacdb9
FB		 975 dev_warn(&card->gdev->dev,
976 "Starting IP fragmentation support for %s failed\n",
977 QETH_CARD_IFNAME(card));
4a71df50 978 } else
74eacdb9
FB		 979 dev_info(&card->gdev->dev,
980 "Hardware IP fragmentation enabled \n");
4a71df50
FB		 981 return rc;
982}
983
984static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
985{
986 int rc;
987
847a50fd 988 QETH_CARD_TEXT(card, 3, "stsrcmac");
4a71df50 989
4a71df50 990 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
74eacdb9 991 dev_info(&card->gdev->dev,
fe94e2e0 992 "Inbound source MAC-address not supported on %s\n",
74eacdb9 993 QETH_CARD_IFNAME(card));
4a71df50
FB		 994 return -EOPNOTSUPP;
995 }
996
4d7def2a 997 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
4a71df50
FB		 998 IPA_CMD_ASS_START, 0);
999 if (rc)
74eacdb9 1000 dev_warn(&card->gdev->dev,
fe94e2e0 1001 "Starting source MAC-address support for %s failed\n",
74eacdb9 1002 QETH_CARD_IFNAME(card));
4a71df50
FB		 1003 return rc;
1004}
1005
1006static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1007{
1008 int rc = 0;
1009
847a50fd 1010 QETH_CARD_TEXT(card, 3, "strtvlan");
4a71df50
FB		 1011
1012 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
74eacdb9
FB		 1013 dev_info(&card->gdev->dev,
1014 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1015 return -EOPNOTSUPP;
1016 }
1017
4d7def2a 1018 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
4a71df50
FB		 1019 IPA_CMD_ASS_START, 0);
1020 if (rc) {
74eacdb9
FB		 1021 dev_warn(&card->gdev->dev,
1022 "Starting VLAN support for %s failed\n",
1023 QETH_CARD_IFNAME(card));
4a71df50 1024 } else {
74eacdb9 1025 dev_info(&card->gdev->dev, "VLAN enabled\n");
4a71df50
FB		 1026 }
1027 return rc;
1028}
1029
1030static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1031{
1032 int rc;
1033
847a50fd 1034 QETH_CARD_TEXT(card, 3, "stmcast");
4a71df50
FB		 1035
1036 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
74eacdb9
FB		 1037 dev_info(&card->gdev->dev,
1038 "Multicast not supported on %s\n",
1039 QETH_CARD_IFNAME(card));
4a71df50
FB		 1040 return -EOPNOTSUPP;
1041 }
1042
4d7def2a 1043 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
4a71df50
FB		 1044 IPA_CMD_ASS_START, 0);
1045 if (rc) {
74eacdb9
FB		 1046 dev_warn(&card->gdev->dev,
1047 "Starting multicast support for %s failed\n",
1048 QETH_CARD_IFNAME(card));
4a71df50 1049 } else {
74eacdb9 1050 dev_info(&card->gdev->dev, "Multicast enabled\n");
4a71df50
FB		 1051 card->dev->flags |= IFF_MULTICAST;
1052 }
1053 return rc;
1054}
1055
4a71df50
FB		 1056#ifdef CONFIG_QETH_IPV6
1057static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1058{
1059 int rc;
1060
847a50fd 1061 QETH_CARD_TEXT(card, 3, "softipv6");
4a71df50
FB		 1062
1063 if (card->info.type == QETH_CARD_TYPE_IQD)
1064 goto out;
1065
1da74b1c 1066 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
4a71df50 1067 if (rc) {
74eacdb9
FB		 1068 dev_err(&card->gdev->dev,
1069 "Activating IPv6 support for %s failed\n",
1070 QETH_CARD_IFNAME(card));
4a71df50
FB		 1071 return rc;
1072 }
4d7def2a 1073 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
4a71df50
FB		 1074 IPA_CMD_ASS_START, 3);
1075 if (rc) {
74eacdb9
FB		 1076 dev_err(&card->gdev->dev,
1077 "Activating IPv6 support for %s failed\n",
1078 QETH_CARD_IFNAME(card));
4a71df50
FB		 1079 return rc;
1080 }
1081 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1082 IPA_CMD_ASS_START);
1083 if (rc) {
74eacdb9
FB		 1084 dev_err(&card->gdev->dev,
1085 "Activating IPv6 support for %s failed\n",
1086 QETH_CARD_IFNAME(card));
4a71df50
FB		 1087 return rc;
1088 }
1089 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1090 IPA_CMD_ASS_START);
1091 if (rc) {
74eacdb9
FB		 1092 dev_warn(&card->gdev->dev,
1093 "Enabling the passthrough mode for %s failed\n",
1094 QETH_CARD_IFNAME(card));
4a71df50
FB		 1095 return rc;
1096 }
1097out:
74eacdb9 1098 dev_info(&card->gdev->dev, "IPV6 enabled\n");
4a71df50
FB		 1099 return 0;
1100}
1101#endif
1102
1103static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1104{
1105 int rc = 0;
1106
847a50fd 1107 QETH_CARD_TEXT(card, 3, "strtipv6");
4a71df50
FB		 1108
1109 if (!qeth_is_supported(card, IPA_IPV6)) {
74eacdb9
FB		 1110 dev_info(&card->gdev->dev,
1111 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1112 return 0;
1113 }
1114#ifdef CONFIG_QETH_IPV6
1115 rc = qeth_l3_softsetup_ipv6(card);
1116#endif
1117 return rc ;
1118}
1119
1120static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1121{
1122 int rc;
1123
847a50fd 1124 QETH_CARD_TEXT(card, 3, "stbrdcst");
4a71df50
FB		 1125 card->info.broadcast_capable = 0;
1126 if (!qeth_is_supported(card, IPA_FILTERING)) {
74eacdb9
FB		 1127 dev_info(&card->gdev->dev,
1128 "Broadcast not supported on %s\n",
1129 QETH_CARD_IFNAME(card));
4a71df50
FB		 1130 rc = -EOPNOTSUPP;
1131 goto out;
1132 }
4d7def2a 1133 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
4a71df50
FB		 1134 IPA_CMD_ASS_START, 0);
1135 if (rc) {
74eacdb9
FB		 1136 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1137 "%s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1138 goto out;
1139 }
1140
4d7def2a 1141 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
4a71df50
FB		 1142 IPA_CMD_ASS_CONFIGURE, 1);
1143 if (rc) {
74eacdb9
FB		 1144 dev_warn(&card->gdev->dev,
1145 "Setting up broadcast filtering for %s failed\n",
1146 QETH_CARD_IFNAME(card));
4a71df50
FB		 1147 goto out;
1148 }
1149 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
74eacdb9 1150 dev_info(&card->gdev->dev, "Broadcast enabled\n");
4d7def2a 1151 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
4a71df50
FB		 1152 IPA_CMD_ASS_ENABLE, 1);
1153 if (rc) {
74eacdb9
FB		 1154 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1155 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1156 goto out;
1157 }
1158 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1159out:
1160 if (card->info.broadcast_capable)
1161 card->dev->flags |= IFF_BROADCAST;
1162 else
1163 card->dev->flags &= ~IFF_BROADCAST;
1164 return rc;
1165}
1166
4a71df50
FB		 1167static int qeth_l3_start_ipassists(struct qeth_card *card)
1168{
847a50fd 1169 QETH_CARD_TEXT(card, 3, "strtipas");
d64ecc22 1170
0f54761d
SR		 1171 if (qeth_set_access_ctrl_online(card, 0))
1172 return -EIO;
4a71df50
FB		 1173 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1174 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1175 qeth_l3_start_ipa_source_mac(card); /* go on*/
1176 qeth_l3_start_ipa_vlan(card); /* go on*/
1177 qeth_l3_start_ipa_multicast(card); /* go on*/
1178 qeth_l3_start_ipa_ipv6(card); /* go on*/
1179 qeth_l3_start_ipa_broadcast(card); /* go on*/
4a71df50
FB		 1180 return 0;
1181}
1182
4a71df50
FB		 1183static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1184 struct qeth_reply *reply, unsigned long data)
1185{
1186 struct qeth_ipa_cmd *cmd;
1187
1188 cmd = (struct qeth_ipa_cmd *) data;
1189 if (cmd->hdr.return_code == 0)
1190 memcpy(card->dev->dev_addr,
1191 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1192 else
1833611d 1193 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 1194
1195 return 0;
1196}
1197
1198static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1199{
1200 int rc = 0;
1201 struct qeth_cmd_buffer *iob;
1202 struct qeth_ipa_cmd *cmd;
1203
d11ba0c4 1204 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
4a71df50
FB		 1205
1206 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1207 QETH_PROT_IPV6);
1aec42bc
TR		 1208 if (!iob)
1209 return -ENOMEM;
4a71df50
FB		 1210 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1211 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1212 card->info.unique_id;
1213
1214 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1215 NULL);
1216 return rc;
1217}
1218
1219static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1220 struct qeth_reply *reply, unsigned long data)
1221{
1222 struct qeth_ipa_cmd *cmd;
1223
1224 cmd = (struct qeth_ipa_cmd *) data;
1225 if (cmd->hdr.return_code == 0)
1226 card->info.unique_id = *((__u16 *)
1227 &cmd->data.create_destroy_addr.unique_id[6]);
1228 else {
1229 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1230 UNIQUE_ID_NOT_BY_CARD;
74eacdb9
FB		 1231 dev_warn(&card->gdev->dev, "The network adapter failed to "
1232 "generate a unique ID\n");
4a71df50
FB		 1233 }
1234 return 0;
1235}
1236
1237static int qeth_l3_get_unique_id(struct qeth_card *card)
1238{
1239 int rc = 0;
1240 struct qeth_cmd_buffer *iob;
1241 struct qeth_ipa_cmd *cmd;
1242
d11ba0c4 1243 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
4a71df50
FB		 1244
1245 if (!qeth_is_supported(card, IPA_IPV6)) {
1246 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1247 UNIQUE_ID_NOT_BY_CARD;
1248 return 0;
1249 }
1250
1251 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1252 QETH_PROT_IPV6);
1aec42bc
TR		 1253 if (!iob)
1254 return -ENOMEM;
4a71df50
FB		 1255 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1256 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1257 card->info.unique_id;
1258
1259 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1260 return rc;
1261}
1262
76b11f8e
UB		 1263static int
1264qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1265 unsigned long data)
1266{
1267 struct qeth_ipa_cmd *cmd;
1268 __u16 rc;
1269
1270 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1271
1272 cmd = (struct qeth_ipa_cmd *)data;
1273 rc = cmd->hdr.return_code;
a959189a 1274 if (rc)
847a50fd 1275 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
76b11f8e
UB		 1276 switch (cmd->data.diagass.action) {
1277 case QETH_DIAGS_CMD_TRACE_QUERY:
1278 break;
1279 case QETH_DIAGS_CMD_TRACE_DISABLE:
a959189a
UB		 1280 switch (rc) {
1281 case 0:
1282 case IPA_RC_INVALID_SUBCMD:
1283 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1284 dev_info(&card->gdev->dev, "The HiperSockets network "
1285 "traffic analyzer is deactivated\n");
1286 break;
1287 default:
1288 break;
1289 }
76b11f8e
UB		 1290 break;
1291 case QETH_DIAGS_CMD_TRACE_ENABLE:
a959189a
UB		 1292 switch (rc) {
1293 case 0:
1294 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1295 dev_info(&card->gdev->dev, "The HiperSockets network "
1296 "traffic analyzer is activated\n");
1297 break;
1298 case IPA_RC_HARDWARE_AUTH_ERROR:
1299 dev_warn(&card->gdev->dev, "The device is not "
1300 "authorized to run as a HiperSockets network "
1301 "traffic analyzer\n");
1302 break;
1303 case IPA_RC_TRACE_ALREADY_ACTIVE:
1304 dev_warn(&card->gdev->dev, "A HiperSockets "
1305 "network traffic analyzer is already "
1306 "active in the HiperSockets LAN\n");
1307 break;
1308 default:
1309 break;
1310 }
76b11f8e
UB		 1311 break;
1312 default:
1313 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1314 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1315 }
1316
1317 return 0;
1318}
1319
1320static int
1321qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1322{
1323 struct qeth_cmd_buffer *iob;
1324 struct qeth_ipa_cmd *cmd;
1325
1326 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1327
1328 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1aec42bc
TR		 1329 if (!iob)
1330 return -ENOMEM;
76b11f8e
UB		 1331 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1332 cmd->data.diagass.subcmd_len = 16;
1333 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1334 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1335 cmd->data.diagass.action = diags_cmd;
1336 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1337}
1338
6bee4e26 1339static void qeth_l3_get_mac_for_ipm(__be32 ipm, char *mac)
4a71df50 1340{
1abd2296 1341 ip_eth_mc_map(ipm, mac);
4a71df50
FB		 1342}
1343
5f78e29c
LD		 1344static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card *card)
1345{
1346 struct qeth_ipaddr *addr;
1347 int i;
1348
1349 hash_for_each(card->ip_mc_htable, i, addr, hnode)
1350 addr->disp_flag = QETH_DISP_ADDR_DELETE;
1351
1352}
1353
1354static void qeth_l3_add_all_new_mc(struct qeth_card *card)
1355{
1356 struct qeth_ipaddr *addr;
1357 struct hlist_node *tmp;
1358 int i;
1359 int rc;
1360
1361 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1362 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
1363 rc = qeth_l3_register_addr_entry(card, addr);
1364 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
1365 addr->ref_counter = 1;
1366 else {
1367 hash_del(&addr->hnode);
1368 kfree(addr);
1369 }
1370 }
1371 }
1372
1373}
1374
1375static void qeth_l3_delete_nonused_mc(struct qeth_card *card)
1376{
1377 struct qeth_ipaddr *addr;
1378 struct hlist_node *tmp;
1379 int i;
1380 int rc;
1381
1382 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1383 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
1384 rc = qeth_l3_deregister_addr_entry(card, addr);
1385 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) {
1386 hash_del(&addr->hnode);
1387 kfree(addr);
1388 }
1389 }
1390 }
1391
1392}
1393
1394
1395static void
1396qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
4a71df50 1397{
4a71df50 1398 struct ip_mc_list *im4;
5f78e29c 1399 struct qeth_ipaddr *tmp, *ipm;
4a71df50
FB		 1400 char buf[MAX_ADDR_LEN];
1401
847a50fd 1402 QETH_CARD_TEXT(card, 4, "addmc");
5f78e29c
LD		 1403
1404 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1405 if (!tmp)
1406 return;
1407
f3aa3136
SS		 1408 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1409 im4 = rcu_dereference(im4->next_rcu)) {
5f78e29c
LD		 1410 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf);
1411
6bee4e26 1412 tmp->u.a4.addr = be32_to_cpu(im4->multiaddr);
5f78e29c
LD		 1413 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1414
1415 ipm = qeth_l3_ip_from_hash(card, tmp);
1416 if (ipm) {
1417 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1418 } else {
1419 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1420 if (!ipm)
1421 continue;
1422 memcpy(ipm->mac, buf, sizeof(tmp->mac));
6bee4e26 1423 ipm->u.a4.addr = be32_to_cpu(im4->multiaddr);
5f78e29c
LD		 1424 ipm->is_multicast = 1;
1425 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1426 hash_add(card->ip_mc_htable,
1427 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1428 }
4a71df50 1429 }
5f78e29c
LD		 1430
1431 kfree(tmp);
4a71df50
FB		 1432}
1433
0347af51 1434/* called with rcu_read_lock */
4a71df50
FB		 1435static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1436{
1437 struct in_device *in_dev;
7ff0bcf6 1438 u16 vid;
4a71df50 1439
847a50fd 1440 QETH_CARD_TEXT(card, 4, "addmcvl");
5f78e29c 1441
7ff0bcf6 1442 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1443 return;
1444
7ff0bcf6
JP		 1445 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1446 struct net_device *netdev;
1447
f06c7f9f 1448 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
91b1c1aa 1449 vid);
4a71df50
FB		 1450 if (netdev == NULL ||
1451 !(netdev->flags & IFF_UP))
1452 continue;
0347af51 1453 in_dev = __in_dev_get_rcu(netdev);
4a71df50
FB		 1454 if (!in_dev)
1455 continue;
5f78e29c 1456 qeth_l3_add_mc_to_hash(card, in_dev);
4a71df50
FB		 1457 }
1458}
1459
1460static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1461{
1462 struct in_device *in4_dev;
1463
847a50fd 1464 QETH_CARD_TEXT(card, 4, "chkmcv4");
5f78e29c 1465
f3aa3136 1466 rcu_read_lock();
0347af51
JP		 1467 in4_dev = __in_dev_get_rcu(card->dev);
1468 if (in4_dev == NULL)
1469 goto unlock;
5f78e29c 1470 qeth_l3_add_mc_to_hash(card, in4_dev);
4a71df50 1471 qeth_l3_add_vlan_mc(card);
0347af51 1472unlock:
f3aa3136 1473 rcu_read_unlock();
4a71df50
FB		 1474}
1475
1476#ifdef CONFIG_QETH_IPV6
5f78e29c
LD		 1477static void
1478qeth_l3_add_mc6_to_hash(struct qeth_card *card, struct inet6_dev *in6_dev)
4a71df50
FB		 1479{
1480 struct qeth_ipaddr *ipm;
1481 struct ifmcaddr6 *im6;
5f78e29c 1482 struct qeth_ipaddr *tmp;
4a71df50
FB		 1483 char buf[MAX_ADDR_LEN];
1484
847a50fd 1485 QETH_CARD_TEXT(card, 4, "addmc6");
5f78e29c
LD		 1486
1487 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1488 if (!tmp)
1489 return;
1490
4a71df50
FB		 1491 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1492 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5f78e29c
LD		 1493
1494 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1495 memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
1496 sizeof(struct in6_addr));
1497 tmp->is_multicast = 1;
1498
1499 ipm = qeth_l3_ip_from_hash(card, tmp);
1500 if (ipm) {
1501 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1502 continue;
1503 }
1504
4a71df50
FB		 1505 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1506 if (!ipm)
1507 continue;
5f78e29c 1508
4a71df50
FB		 1509 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1510 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1511 sizeof(struct in6_addr));
5f78e29c
LD		 1512 ipm->is_multicast = 1;
1513 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1514 hash_add(card->ip_mc_htable,
1515 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1516
4a71df50 1517 }
5f78e29c 1518 kfree(tmp);
4a71df50
FB		 1519}
1520
0347af51 1521/* called with rcu_read_lock */
4a71df50
FB		 1522static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1523{
1524 struct inet6_dev *in_dev;
7ff0bcf6 1525 u16 vid;
4a71df50 1526
847a50fd 1527 QETH_CARD_TEXT(card, 4, "admc6vl");
5f78e29c 1528
7ff0bcf6 1529 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1530 return;
1531
7ff0bcf6
JP		 1532 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1533 struct net_device *netdev;
1534
f06c7f9f 1535 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
91b1c1aa 1536 vid);
4a71df50
FB		 1537 if (netdev == NULL ||
1538 !(netdev->flags & IFF_UP))
1539 continue;
1540 in_dev = in6_dev_get(netdev);
1541 if (!in_dev)
1542 continue;
1543 read_lock_bh(&in_dev->lock);
5f78e29c 1544 qeth_l3_add_mc6_to_hash(card, in_dev);
4a71df50
FB		 1545 read_unlock_bh(&in_dev->lock);
1546 in6_dev_put(in_dev);
1547 }
1548}
1549
1550static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1551{
1552 struct inet6_dev *in6_dev;
1553
847a50fd 1554 QETH_CARD_TEXT(card, 4, "chkmcv6");
5f78e29c 1555
4a71df50
FB		 1556 if (!qeth_is_supported(card, IPA_IPV6))
1557 return ;
1558 in6_dev = in6_dev_get(card->dev);
5f78e29c 1559 if (!in6_dev)
4a71df50 1560 return;
5f78e29c 1561
0347af51 1562 rcu_read_lock();
4a71df50 1563 read_lock_bh(&in6_dev->lock);
5f78e29c 1564 qeth_l3_add_mc6_to_hash(card, in6_dev);
4a71df50
FB		 1565 qeth_l3_add_vlan_mc6(card);
1566 read_unlock_bh(&in6_dev->lock);
0347af51 1567 rcu_read_unlock();
4a71df50
FB		 1568 in6_dev_put(in6_dev);
1569}
1570#endif /* CONFIG_QETH_IPV6 */
1571
1572static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1573 unsigned short vid)
1574{
1575 struct in_device *in_dev;
1576 struct in_ifaddr *ifa;
1577 struct qeth_ipaddr *addr;
7ff0bcf6 1578 struct net_device *netdev;
4a71df50 1579
847a50fd 1580 QETH_CARD_TEXT(card, 4, "frvaddr4");
4a71df50 1581
f06c7f9f 1582 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
eabfbe62 1583 if (!netdev)
1584 return;
7ff0bcf6 1585 in_dev = in_dev_get(netdev);
4a71df50
FB		 1586 if (!in_dev)
1587 return;
5f78e29c
LD		 1588
1589 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1590 if (!addr)
1591 return;
1592
1593 spin_lock_bh(&card->ip_lock);
1594
4a71df50 1595 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
6bee4e26
HW		 1596 addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
1597 addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
5f78e29c
LD		 1598 addr->type = QETH_IP_TYPE_NORMAL;
1599 qeth_l3_delete_ip(card, addr);
4a71df50 1600 }
5f78e29c
LD		 1601
1602 spin_unlock_bh(&card->ip_lock);
1603
1604 kfree(addr);
4a71df50
FB		 1605 in_dev_put(in_dev);
1606}
1607
1608static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1609 unsigned short vid)
1610{
1611#ifdef CONFIG_QETH_IPV6
1612 struct inet6_dev *in6_dev;
1613 struct inet6_ifaddr *ifa;
1614 struct qeth_ipaddr *addr;
7ff0bcf6 1615 struct net_device *netdev;
4a71df50 1616
847a50fd 1617 QETH_CARD_TEXT(card, 4, "frvaddr6");
4a71df50 1618
f06c7f9f 1619 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
eabfbe62 1620 if (!netdev)
1621 return;
5f78e29c 1622
7ff0bcf6 1623 in6_dev = in6_dev_get(netdev);
4a71df50
FB		 1624 if (!in6_dev)
1625 return;
5f78e29c
LD		 1626
1627 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1628 if (!addr)
1629 return;
1630
1631 spin_lock_bh(&card->ip_lock);
1632
70f60a22 1633 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
5f78e29c
LD		 1634 memcpy(&addr->u.a6.addr, &ifa->addr,
1635 sizeof(struct in6_addr));
1636 addr->u.a6.pfxlen = ifa->prefix_len;
1637 addr->type = QETH_IP_TYPE_NORMAL;
1638 qeth_l3_delete_ip(card, addr);
4a71df50 1639 }
5f78e29c
LD		 1640
1641 spin_unlock_bh(&card->ip_lock);
1642
1643 kfree(addr);
4a71df50
FB		 1644 in6_dev_put(in6_dev);
1645#endif /* CONFIG_QETH_IPV6 */
1646}
1647
1648static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1649 unsigned short vid)
1650{
0347af51 1651 rcu_read_lock();
4a71df50
FB		 1652 qeth_l3_free_vlan_addresses4(card, vid);
1653 qeth_l3_free_vlan_addresses6(card, vid);
0347af51 1654 rcu_read_unlock();
4a71df50
FB		 1655}
1656
80d5c368
PM		 1657static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1658 __be16 proto, u16 vid)
4a71df50 1659{
509e2562 1660 struct qeth_card *card = dev->ml_priv;
4a71df50 1661
7ff0bcf6 1662 set_bit(vid, card->active_vlans);
8e586137 1663 return 0;
4a71df50
FB		 1664}
1665
80d5c368
PM		 1666static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1667 __be16 proto, u16 vid)
4a71df50 1668{
509e2562 1669 struct qeth_card *card = dev->ml_priv;
4a71df50 1670
847a50fd 1671 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
5f78e29c 1672
8e98ac48 1673 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 1674 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 1675 return 0;
8e98ac48 1676 }
4a71df50
FB		 1677 /* unregister IP addresses of vlan device */
1678 qeth_l3_free_vlan_addresses(card, vid);
7ff0bcf6 1679 clear_bit(vid, card->active_vlans);
4a71df50 1680 qeth_l3_set_multicast_list(card->dev);
8e586137 1681 return 0;
4a71df50
FB		 1682}
1683
10651db7
UB		 1684static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1685 struct sk_buff *skb, struct qeth_hdr *hdr,
1686 unsigned short *vlan_id)
4a71df50 1687{
6bee4e26 1688 __u16 prot;
4a71df50
FB		 1689 struct iphdr *ip_hdr;
1690 unsigned char tg_addr[MAX_ADDR_LEN];
10651db7 1691 int is_vlan = 0;
4a71df50
FB		 1692
1693 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
6bee4e26
HW		 1694 prot = (hdr->hdr.l3.flags & QETH_HDR_IPV6) ? ETH_P_IPV6 :
1695 ETH_P_IP;
4a71df50
FB		 1696 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1697 case QETH_CAST_MULTICAST:
1698 switch (prot) {
1699#ifdef CONFIG_QETH_IPV6
6bee4e26 1700 case ETH_P_IPV6:
4a71df50
FB		 1701 ndisc_mc_map((struct in6_addr *)
1702 skb->data + 24,
1703 tg_addr, card->dev, 0);
1704 break;
1705#endif
6bee4e26 1706 case ETH_P_IP:
4a71df50 1707 ip_hdr = (struct iphdr *)skb->data;
4a71df50
FB		 1708 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1709 break;
1710 default:
1711 memcpy(tg_addr, card->dev->broadcast,
1712 card->dev->addr_len);
1713 }
1714 card->stats.multicast++;
1715 skb->pkt_type = PACKET_MULTICAST;
1716 break;
1717 case QETH_CAST_BROADCAST:
1718 memcpy(tg_addr, card->dev->broadcast,
1719 card->dev->addr_len);
1720 card->stats.multicast++;
1721 skb->pkt_type = PACKET_BROADCAST;
1722 break;
1723 case QETH_CAST_UNICAST:
1724 case QETH_CAST_ANYCAST:
1725 case QETH_CAST_NOCAST:
1726 default:
76b11f8e
UB		 1727 if (card->options.sniffer)
1728 skb->pkt_type = PACKET_OTHERHOST;
1729 else
1730 skb->pkt_type = PACKET_HOST;
4a71df50
FB		 1731 memcpy(tg_addr, card->dev->dev_addr,
1732 card->dev->addr_len);
1733 }
fe94e2e0
UB		 1734 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1735 card->dev->header_ops->create(skb, card->dev, prot,
1736 tg_addr, &hdr->hdr.l3.dest_addr[2],
1737 card->dev->addr_len);
1738 else
1739 card->dev->header_ops->create(skb, card->dev, prot,
1740 tg_addr, "FAKELL", card->dev->addr_len);
4a71df50
FB		 1741 }
1742
1abd2296 1743 skb->protocol = eth_type_trans(skb, card->dev);
4a71df50
FB		 1744
1745 if (hdr->hdr.l3.ext_flags &
1746 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
10651db7 1747 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
4a71df50 1748 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
10651db7 1749 is_vlan = 1;
4a71df50
FB		 1750 }
1751
c5e631a8 1752 if (card->dev->features & NETIF_F_RXCSUM) {
4a71df50 1753 if ((hdr->hdr.l3.ext_flags &
b9139800
UB		 1754 (QETH_HDR_EXT_CSUM_HDR_REQ |
1755 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1756 (QETH_HDR_EXT_CSUM_HDR_REQ |
1757 QETH_HDR_EXT_CSUM_TRANSP_REQ))
4a71df50
FB		 1758 skb->ip_summed = CHECKSUM_UNNECESSARY;
1759 else
b9139800 1760 skb->ip_summed = CHECKSUM_NONE;
c5e631a8
FB		 1761 } else
1762 skb->ip_summed = CHECKSUM_NONE;
10651db7 1763 return is_vlan;
4a71df50
FB		 1764}
1765
a1c3ed4c
FB		 1766static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1767 int budget, int *done)
4a71df50 1768{
a1c3ed4c 1769 int work_done = 0;
4a71df50
FB		 1770 struct sk_buff *skb;
1771 struct qeth_hdr *hdr;
4a71df50 1772 __u16 vlan_tag = 0;
10651db7 1773 int is_vlan;
4a71df50 1774 unsigned int len;
b3332930 1775 __u16 magic;
4a71df50 1776
a1c3ed4c 1777 *done = 0;
18af5c17 1778 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 1779 while (budget) {
1780 skb = qeth_core_get_next_skb(card,
b3332930 1781 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 1782 &card->rx.b_element, &card->rx.e_offset, &hdr);
1783 if (!skb) {
1784 *done = 1;
1785 break;
1786 }
1787 skb->dev = card->dev;
4a71df50
FB		 1788 switch (hdr->hdr.l3.id) {
1789 case QETH_HEADER_TYPE_LAYER3:
b3332930
FB		 1790 magic = *(__u16 *)skb->data;
1791 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1792 (magic == ETH_P_AF_IUCV)) {
6bee4e26 1793 skb->protocol = cpu_to_be16(ETH_P_AF_IUCV);
b3332930
FB		 1794 skb->pkt_type = PACKET_HOST;
1795 skb->mac_header = NET_SKB_PAD;
1796 skb->dev = card->dev;
1797 len = skb->len;
1798 card->dev->header_ops->create(skb, card->dev, 0,
1799 card->dev->dev_addr, "FAKELL",
1800 card->dev->addr_len);
1801 netif_receive_skb(skb);
1802 } else {
1803 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
10651db7 1804 &vlan_tag);
b3332930
FB		 1805 len = skb->len;
1806 if (is_vlan && !card->options.sniffer)
91b1c1aa
PM		 1807 __vlan_hwaccel_put_tag(skb,
1808 htons(ETH_P_8021Q), vlan_tag);
b3332930
FB		 1809 napi_gro_receive(&card->napi, skb);
1810 }
4a71df50 1811 break;
76b11f8e
UB		 1812 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1813 skb->pkt_type = PACKET_HOST;
1814 skb->protocol = eth_type_trans(skb, skb->dev);
76b11f8e
UB		 1815 len = skb->len;
1816 netif_receive_skb(skb);
1817 break;
4a71df50
FB		 1818 default:
1819 dev_kfree_skb_any(skb);
847a50fd 1820 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 1821 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 1822 continue;
1823 }
a1c3ed4c
FB		 1824 work_done++;
1825 budget--;
4a71df50
FB		 1826 card->stats.rx_packets++;
1827 card->stats.rx_bytes += len;
1828 }
a1c3ed4c
FB		 1829 return work_done;
1830}
1831
4a71df50
FB		 1832static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1833 struct qeth_card *card)
1834{
1835 int rc = 0;
7ff0bcf6 1836 u16 vid;
4a71df50 1837
7ff0bcf6
JP		 1838 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1839 struct net_device *netdev;
4a71df50 1840
7ff0bcf6 1841 rcu_read_lock();
f06c7f9f 1842 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
91b1c1aa 1843 vid);
7ff0bcf6
JP		 1844 rcu_read_unlock();
1845 if (netdev == dev) {
4a71df50
FB		 1846 rc = QETH_VLAN_CARD;
1847 break;
1848 }
1849 }
1850
509e2562 1851 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
4a71df50
FB		 1852 return 0;
1853
1854 return rc;
1855}
1856
1857static int qeth_l3_verify_dev(struct net_device *dev)
1858{
1859 struct qeth_card *card;
4a71df50 1860 int rc = 0;
5f78e29c 1861 unsigned long flags;
4a71df50
FB		 1862
1863 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
1864 list_for_each_entry(card, &qeth_core_card_list.list, list) {
1865 if (card->dev == dev) {
1866 rc = QETH_REAL_CARD;
1867 break;
1868 }
1869 rc = qeth_l3_verify_vlan_dev(dev, card);
1870 if (rc)
1871 break;
1872 }
1873 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
1874
1875 return rc;
1876}
1877
1878static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
1879{
1880 struct qeth_card *card = NULL;
1881 int rc;
1882
1883 rc = qeth_l3_verify_dev(dev);
1884 if (rc == QETH_REAL_CARD)
509e2562 1885 card = dev->ml_priv;
4a71df50 1886 else if (rc == QETH_VLAN_CARD)
509e2562 1887 card = vlan_dev_real_dev(dev)->ml_priv;
e5bd7be5 1888 if (card && card->options.layer2)
4a71df50 1889 card = NULL;
847a50fd
CO		 1890 if (card)
1891 QETH_CARD_TEXT_(card, 4, "%d", rc);
4a71df50
FB		 1892 return card ;
1893}
1894
b2f4de8b 1895static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
4a71df50 1896{
d11ba0c4
PT		 1897 QETH_DBF_TEXT(SETUP, 2, "stopcard");
1898 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 1899
1900 qeth_set_allowed_threads(card, 0, 1);
76b11f8e
UB		 1901 if (card->options.sniffer &&
1902 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
1903 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
4a71df50
FB		 1904 if (card->read.state == CH_STATE_UP &&
1905 card->write.state == CH_STATE_UP &&
1906 (card->state == CARD_STATE_UP)) {
1907 if (recovery_mode)
1908 qeth_l3_stop(card->dev);
8af7c5ae 1909 else {
869da90b
UB		 1910 rtnl_lock();
1911 dev_close(card->dev);
1912 rtnl_unlock();
8af7c5ae 1913 }
4a71df50
FB		 1914 card->state = CARD_STATE_SOFTSETUP;
1915 }
1916 if (card->state == CARD_STATE_SOFTSETUP) {
5f78e29c 1917 qeth_l3_clear_ip_htable(card, 1);
4a71df50
FB		 1918 qeth_clear_ipacmd_list(card);
1919 card->state = CARD_STATE_HARDSETUP;
1920 }
1921 if (card->state == CARD_STATE_HARDSETUP) {
4a71df50
FB		 1922 qeth_qdio_clear_card(card, 0);
1923 qeth_clear_qdio_buffers(card);
1924 qeth_clear_working_pool_list(card);
1925 card->state = CARD_STATE_DOWN;
1926 }
1927 if (card->state == CARD_STATE_DOWN) {
1928 qeth_clear_cmd_buffers(&card->read);
1929 qeth_clear_cmd_buffers(&card->write);
1930 }
4a71df50
FB		 1931}
1932
76b11f8e
UB		 1933/*
1934 * test for and Switch promiscuous mode (on or off)
1935 * either for guestlan or HiperSocket Sniffer
1936 */
1937static void
1938qeth_l3_handle_promisc_mode(struct qeth_card *card)
1939{
1940 struct net_device *dev = card->dev;
1941
1942 if (((dev->flags & IFF_PROMISC) &&
1943 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
1944 (!(dev->flags & IFF_PROMISC) &&
1945 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
1946 return;
1947
1948 if (card->info.guestlan) { /* Guestlan trace */
1949 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
1950 qeth_setadp_promisc_mode(card);
1951 } else if (card->options.sniffer && /* HiperSockets trace */
1952 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
1953 if (dev->flags & IFF_PROMISC) {
847a50fd 1954 QETH_CARD_TEXT(card, 3, "+promisc");
76b11f8e
UB		 1955 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
1956 } else {
847a50fd 1957 QETH_CARD_TEXT(card, 3, "-promisc");
76b11f8e
UB		 1958 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
1959 }
1960 }
1961}
1962
4a71df50
FB		 1963static void qeth_l3_set_multicast_list(struct net_device *dev)
1964{
509e2562 1965 struct qeth_card *card = dev->ml_priv;
4a71df50 1966
847a50fd 1967 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 1968 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
1969 (card->state != CARD_STATE_UP))
1970 return;
76b11f8e 1971 if (!card->options.sniffer) {
5f78e29c
LD		 1972
1973 spin_lock_bh(&card->mclock);
1974
1975 qeth_l3_mark_all_mc_to_be_deleted(card);
1976
76b11f8e 1977 qeth_l3_add_multicast_ipv4(card);
4a71df50 1978#ifdef CONFIG_QETH_IPV6
76b11f8e 1979 qeth_l3_add_multicast_ipv6(card);
4a71df50 1980#endif
5f78e29c
LD		 1981 qeth_l3_delete_nonused_mc(card);
1982 qeth_l3_add_all_new_mc(card);
1983
1984 spin_unlock_bh(&card->mclock);
1985
76b11f8e
UB		 1986 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
1987 return;
1988 }
1989 qeth_l3_handle_promisc_mode(card);
4a71df50
FB		 1990}
1991
1992static const char *qeth_l3_arp_get_error_cause(int *rc)
1993{
1994 switch (*rc) {
1995 case QETH_IPA_ARP_RC_FAILED:
1996 *rc = -EIO;
1997 return "operation failed";
1998 case QETH_IPA_ARP_RC_NOTSUPP:
1999 *rc = -EOPNOTSUPP;
2000 return "operation not supported";
2001 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2002 *rc = -EINVAL;
2003 return "argument out of range";
2004 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2005 *rc = -EOPNOTSUPP;
2006 return "query operation not supported";
2007 case QETH_IPA_ARP_RC_Q_NO_DATA:
2008 *rc = -ENOENT;
2009 return "no query data available";
2010 default:
2011 return "unknown error";
2012 }
2013}
2014
2015static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2016{
2017 int tmp;
2018 int rc;
2019
847a50fd 2020 QETH_CARD_TEXT(card, 3, "arpstnoe");
4a71df50
FB		 2021
2022 /*
2023 * currently GuestLAN only supports the ARP assist function
2024 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2025 * thus we say EOPNOTSUPP for this ARP function
2026 */
2027 if (card->info.guestlan)
2028 return -EOPNOTSUPP;
2029 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2030 return -EOPNOTSUPP;
2031 }
4d7def2a 2032 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2033 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2034 no_entries);
2035 if (rc) {
2036 tmp = rc;
14cc21b6
FB		 2037 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2038 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2039 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2040 }
2041 return rc;
2042}
2043
d0ddf30f
EL		 2044static __u32 get_arp_entry_size(struct qeth_card *card,
2045 struct qeth_arp_query_data *qdata,
2046 struct qeth_arp_entrytype *type, __u8 strip_entries)
4a71df50 2047{
d0ddf30f
EL		 2048 __u32 rc;
2049 __u8 is_hsi;
4a71df50 2050
d0ddf30f
EL		 2051 is_hsi = qdata->reply_bits == 5;
2052 if (type->ip == QETHARP_IP_ADDR_V4) {
2053 QETH_CARD_TEXT(card, 4, "arpev4");
2054 if (strip_entries) {
2055 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2056 sizeof(struct qeth_arp_qi_entry7_short);
2057 } else {
2058 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2059 sizeof(struct qeth_arp_qi_entry7);
2060 }
2061 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2062 QETH_CARD_TEXT(card, 4, "arpev6");
2063 if (strip_entries) {
2064 rc = is_hsi ?
2065 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2066 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2067 } else {
2068 rc = is_hsi ?
2069 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2070 sizeof(struct qeth_arp_qi_entry7_ipv6);
2071 }
2072 } else {
2073 QETH_CARD_TEXT(card, 4, "arpinv");
2074 rc = 0;
4a71df50 2075 }
d0ddf30f
EL		 2076
2077 return rc;
2078}
2079
2080static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2081{
2082 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2083 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
4a71df50
FB		 2084}
2085
2086static int qeth_l3_arp_query_cb(struct qeth_card *card,
2087 struct qeth_reply *reply, unsigned long data)
2088{
2089 struct qeth_ipa_cmd *cmd;
2090 struct qeth_arp_query_data *qdata;
2091 struct qeth_arp_query_info *qinfo;
4a71df50 2092 int i;
d0ddf30f
EL		 2093 int e;
2094 int entrybytes_done;
2095 int stripped_bytes;
2096 __u8 do_strip_entries;
4a71df50 2097
d0ddf30f 2098 QETH_CARD_TEXT(card, 3, "arpquecb");
4a71df50
FB		 2099
2100 qinfo = (struct qeth_arp_query_info *) reply->param;
2101 cmd = (struct qeth_ipa_cmd *) data;
d0ddf30f 2102 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
4a71df50 2103 if (cmd->hdr.return_code) {
d0ddf30f
EL		 2104 QETH_CARD_TEXT(card, 4, "arpcberr");
2105 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2106 return 0;
2107 }
2108 if (cmd->data.setassparms.hdr.return_code) {
2109 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
d0ddf30f
EL		 2110 QETH_CARD_TEXT(card, 4, "setaperr");
2111 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2112 return 0;
2113 }
2114 qdata = &cmd->data.setassparms.data.query_arp;
847a50fd 2115 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
4a71df50 2116
d0ddf30f
EL		 2117 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2118 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2119 entrybytes_done = 0;
2120 for (e = 0; e < qdata->no_entries; ++e) {
2121 char *cur_entry;
2122 __u32 esize;
2123 struct qeth_arp_entrytype *etype;
2124
2125 cur_entry = &qdata->data + entrybytes_done;
2126 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2127 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2128 QETH_CARD_TEXT(card, 4, "pmis");
2129 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2130 break;
2131 }
2132 esize = get_arp_entry_size(card, qdata, etype,
2133 do_strip_entries);
2134 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2135 if (!esize)
2136 break;
2137
2138 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2139 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
e0a8114c 2140 cmd->hdr.return_code = IPA_RC_ENOMEM;
d0ddf30f
EL		 2141 goto out_error;
2142 }
4a71df50 2143
d0ddf30f
EL		 2144 memcpy(qinfo->udata + qinfo->udata_offset,
2145 &qdata->data + entrybytes_done + stripped_bytes,
2146 esize);
2147 entrybytes_done += esize + stripped_bytes;
2148 qinfo->udata_offset += esize;
2149 ++qinfo->no_entries;
2150 }
4a71df50
FB		 2151 /* check if all replies received ... */
2152 if (cmd->data.setassparms.hdr.seq_no <
2153 cmd->data.setassparms.hdr.number_of_replies)
2154 return 1;
d0ddf30f 2155 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
4a71df50
FB		 2156 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2157 /* keep STRIP_ENTRIES flag so the user program can distinguish
2158 * stripped entries from normal ones */
2159 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2160 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2161 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
d0ddf30f 2162 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
4a71df50
FB		 2163 return 0;
2164out_error:
2165 i = 0;
2166 memcpy(qinfo->udata, &i, 4);
2167 return 0;
2168}
2169
2170static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2171 struct qeth_cmd_buffer *iob, int len,
2172 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2173 unsigned long),
2174 void *reply_param)
2175{
847a50fd 2176 QETH_CARD_TEXT(card, 4, "sendarp");
4a71df50
FB		 2177
2178 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2179 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2180 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2181 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2182 reply_cb, reply_param);
2183}
2184
d0ddf30f
EL		 2185static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2186 enum qeth_prot_versions prot,
2187 struct qeth_arp_query_info *qinfo)
4a71df50
FB		 2188{
2189 struct qeth_cmd_buffer *iob;
d0ddf30f 2190 struct qeth_ipa_cmd *cmd;
4a71df50
FB		 2191 int tmp;
2192 int rc;
2193
d0ddf30f
EL		 2194 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2195
b475e316
TR		 2196 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2197 IPA_CMD_ASS_ARP_QUERY_INFO,
2198 sizeof(struct qeth_arp_query_data)
2199 - sizeof(char),
2200 prot);
1aec42bc
TR		 2201 if (!iob)
2202 return -ENOMEM;
d0ddf30f
EL		 2203 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2204 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2205 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2206 cmd->data.setassparms.data.query_arp.no_entries = 0;
2207 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2208 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2209 qeth_l3_arp_query_cb, (void *)qinfo);
2210 if (rc) {
2211 tmp = rc;
2212 QETH_DBF_MESSAGE(2,
2213 "Error while querying ARP cache on %s: %s "
2214 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2215 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2216 }
2217
2218 return rc;
2219}
2220
2221static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2222{
2223 struct qeth_arp_query_info qinfo = {0, };
2224 int rc;
2225
847a50fd 2226 QETH_CARD_TEXT(card, 3, "arpquery");
4a71df50
FB		 2227
2228 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2229 IPA_ARP_PROCESSING)) {
d0ddf30f
EL		 2230 QETH_CARD_TEXT(card, 3, "arpqnsup");
2231 rc = -EOPNOTSUPP;
2232 goto out;
4a71df50
FB		 2233 }
2234 /* get size of userspace buffer and mask_bits -> 6 bytes */
d0ddf30f
EL		 2235 if (copy_from_user(&qinfo, udata, 6)) {
2236 rc = -EFAULT;
2237 goto out;
2238 }
4a71df50 2239 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
d0ddf30f
EL		 2240 if (!qinfo.udata) {
2241 rc = -ENOMEM;
2242 goto out;
2243 }
4a71df50 2244 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
d0ddf30f 2245 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
4a71df50 2246 if (rc) {
4a71df50
FB		 2247 if (copy_to_user(udata, qinfo.udata, 4))
2248 rc = -EFAULT;
77a83ed1
SO		 2249 goto free_and_out;
2250 }
d0ddf30f 2251#ifdef CONFIG_QETH_IPV6
77a83ed1
SO		 2252 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2253 /* fails in case of GuestLAN QDIO mode */
2254 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6, &qinfo);
2255 }
d0ddf30f 2256#endif
77a83ed1
SO		 2257 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2258 QETH_CARD_TEXT(card, 4, "qactf");
2259 rc = -EFAULT;
2260 goto free_and_out;
4a71df50 2261 }
77a83ed1
SO		 2262 QETH_CARD_TEXT(card, 4, "qacts");
2263
d0ddf30f 2264free_and_out:
4a71df50 2265 kfree(qinfo.udata);
d0ddf30f 2266out:
4a71df50
FB		 2267 return rc;
2268}
2269
2270static int qeth_l3_arp_add_entry(struct qeth_card *card,
2271 struct qeth_arp_cache_entry *entry)
2272{
2273 struct qeth_cmd_buffer *iob;
2274 char buf[16];
2275 int tmp;
2276 int rc;
2277
847a50fd 2278 QETH_CARD_TEXT(card, 3, "arpadent");
4a71df50
FB		 2279
2280 /*
2281 * currently GuestLAN only supports the ARP assist function
2282 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2283 * thus we say EOPNOTSUPP for this ARP function
2284 */
2285 if (card->info.guestlan)
2286 return -EOPNOTSUPP;
2287 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2288 return -EOPNOTSUPP;
2289 }
2290
b475e316 2291 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2292 IPA_CMD_ASS_ARP_ADD_ENTRY,
2293 sizeof(struct qeth_arp_cache_entry),
2294 QETH_PROT_IPV4);
1aec42bc
TR		 2295 if (!iob)
2296 return -ENOMEM;
4d7def2a 2297 rc = qeth_send_setassparms(card, iob,
4a71df50
FB		 2298 sizeof(struct qeth_arp_cache_entry),
2299 (unsigned long) entry,
8f43fb00 2300 qeth_setassparms_cb, NULL);
4a71df50
FB		 2301 if (rc) {
2302 tmp = rc;
2303 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2304 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2305 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2306 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2307 }
2308 return rc;
2309}
2310
2311static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2312 struct qeth_arp_cache_entry *entry)
2313{
2314 struct qeth_cmd_buffer *iob;
2315 char buf[16] = {0, };
2316 int tmp;
2317 int rc;
2318
847a50fd 2319 QETH_CARD_TEXT(card, 3, "arprment");
4a71df50
FB		 2320
2321 /*
2322 * currently GuestLAN only supports the ARP assist function
2323 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2324 * thus we say EOPNOTSUPP for this ARP function
2325 */
2326 if (card->info.guestlan)
2327 return -EOPNOTSUPP;
2328 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2329 return -EOPNOTSUPP;
2330 }
2331 memcpy(buf, entry, 12);
b475e316 2332 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2333 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2334 12,
2335 QETH_PROT_IPV4);
1aec42bc
TR		 2336 if (!iob)
2337 return -ENOMEM;
4d7def2a 2338 rc = qeth_send_setassparms(card, iob,
4a71df50 2339 12, (unsigned long)buf,
8f43fb00 2340 qeth_setassparms_cb, NULL);
4a71df50
FB		 2341 if (rc) {
2342 tmp = rc;
2343 memset(buf, 0, 16);
2344 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2345 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2346 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2347 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2348 }
2349 return rc;
2350}
2351
2352static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2353{
2354 int rc;
2355 int tmp;
2356
847a50fd 2357 QETH_CARD_TEXT(card, 3, "arpflush");
4a71df50
FB		 2358
2359 /*
2360 * currently GuestLAN only supports the ARP assist function
2361 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2362 * thus we say EOPNOTSUPP for this ARP function
2363 */
2364 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2365 return -EOPNOTSUPP;
2366 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2367 return -EOPNOTSUPP;
2368 }
4d7def2a 2369 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2370 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2371 if (rc) {
2372 tmp = rc;
14cc21b6
FB		 2373 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2374 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2375 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2376 }
2377 return rc;
2378}
2379
2380static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2381{
509e2562 2382 struct qeth_card *card = dev->ml_priv;
4a71df50 2383 struct qeth_arp_cache_entry arp_entry;
4a71df50
FB		 2384 int rc = 0;
2385
4a71df50
FB		 2386 switch (cmd) {
2387 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2388 if (!capable(CAP_NET_ADMIN)) {
2389 rc = -EPERM;
2390 break;
2391 }
2392 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2393 break;
2394 case SIOC_QETH_ARP_QUERY_INFO:
2395 if (!capable(CAP_NET_ADMIN)) {
2396 rc = -EPERM;
2397 break;
2398 }
2399 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2400 break;
2401 case SIOC_QETH_ARP_ADD_ENTRY:
2402 if (!capable(CAP_NET_ADMIN)) {
2403 rc = -EPERM;
2404 break;
2405 }
2406 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2407 sizeof(struct qeth_arp_cache_entry)))
2408 rc = -EFAULT;
2409 else
2410 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2411 break;
2412 case SIOC_QETH_ARP_REMOVE_ENTRY:
2413 if (!capable(CAP_NET_ADMIN)) {
2414 rc = -EPERM;
2415 break;
2416 }
2417 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2418 sizeof(struct qeth_arp_cache_entry)))
2419 rc = -EFAULT;
2420 else
2421 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2422 break;
2423 case SIOC_QETH_ARP_FLUSH_CACHE:
2424 if (!capable(CAP_NET_ADMIN)) {
2425 rc = -EPERM;
2426 break;
2427 }
2428 rc = qeth_l3_arp_flush_cache(card);
2429 break;
4a71df50
FB		 2430 default:
2431 rc = -EOPNOTSUPP;
2432 }
4a71df50
FB		 2433 return rc;
2434}
2435
ce73e10e
KDW		 2436int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2437{
2438 int cast_type = RTN_UNSPEC;
69cce1d1
DM		 2439 struct neighbour *n = NULL;
2440 struct dst_entry *dst;
2441
1d36cb47 2442 rcu_read_lock();
69cce1d1
DM		 2443 dst = skb_dst(skb);
2444 if (dst)
24db1ba8 2445 n = dst_neigh_lookup_skb(dst, skb);
69cce1d1
DM		 2446 if (n) {
2447 cast_type = n->type;
1d36cb47 2448 rcu_read_unlock();
24db1ba8 2449 neigh_release(n);
ce73e10e
KDW		 2450 if ((cast_type == RTN_BROADCAST) ||
2451 (cast_type == RTN_MULTICAST) ||
2452 (cast_type == RTN_ANYCAST))
2453 return cast_type;
2454 else
2455 return RTN_UNSPEC;
2456 }
1d36cb47
FB		 2457 rcu_read_unlock();
2458
ce73e10e 2459 /* try something else */
6bee4e26 2460 if (be16_to_cpu(skb->protocol) == ETH_P_IPV6)
ce73e10e
KDW		 2461 return (skb_network_header(skb)[24] == 0xff) ?
2462 RTN_MULTICAST : 0;
6bee4e26 2463 else if (be16_to_cpu(skb->protocol) == ETH_P_IP)
ce73e10e
KDW		 2464 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2465 RTN_MULTICAST : 0;
2466 /* ... */
2467 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2468 return RTN_BROADCAST;
2469 else {
2470 u16 hdr_mac;
2471
2472 hdr_mac = *((u16 *)skb->data);
2473 /* tr multicast? */
2474 switch (card->info.link_type) {
2475 case QETH_LINK_TYPE_HSTR:
2476 case QETH_LINK_TYPE_LANE_TR:
2477 if ((hdr_mac == QETH_TR_MAC_NC) ||
2478 (hdr_mac == QETH_TR_MAC_C))
2479 return RTN_MULTICAST;
2480 break;
2481 /* eth or so multicast? */
2482 default:
2483 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2484 (hdr_mac == QETH_ETH_MAC_V6))
2485 return RTN_MULTICAST;
2486 }
2487 }
2488 return cast_type;
2489}
2490
b3332930
FB		 2491static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2492 struct qeth_hdr *hdr, struct sk_buff *skb)
2493{
2494 char daddr[16];
2495 struct af_iucv_trans_hdr *iucv_hdr;
2496
b3332930
FB		 2497 memset(hdr, 0, sizeof(struct qeth_hdr));
2498 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2499 hdr->hdr.l3.ext_flags = 0;
acd9776b 2500 hdr->hdr.l3.length = skb->len - ETH_HLEN;
b3332930 2501 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
acd9776b
JW		 2502
2503 iucv_hdr = (struct af_iucv_trans_hdr *) (skb->data + ETH_HLEN);
b3332930
FB		 2504 memset(daddr, 0, sizeof(daddr));
2505 daddr[0] = 0xfe;
2506 daddr[1] = 0x80;
2507 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2508 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2509}
2510
4a71df50
FB		 2511static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2512 struct sk_buff *skb, int ipv, int cast_type)
2513{
69cce1d1
DM		 2514 struct dst_entry *dst;
2515
4a71df50
FB		 2516 memset(hdr, 0, sizeof(struct qeth_hdr));
2517 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2518 hdr->hdr.l3.ext_flags = 0;
2519
2520 /*
2521 * before we're going to overwrite this location with next hop ip.
2522 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2523 */
df8a39de 2524 if (skb_vlan_tag_present(skb)) {
213298f8
FB		 2525 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2526 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2527 else
2528 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
df8a39de 2529 hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
4a71df50
FB		 2530 }
2531
2532 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
1d36cb47
FB		 2533
2534 rcu_read_lock();
69cce1d1 2535 dst = skb_dst(skb);
4a71df50 2536 if (ipv == 4) {
87e7597b
DM		 2537 struct rtable *rt = (struct rtable *) dst;
2538 __be32 *pkey = &ip_hdr(skb)->daddr;
2539
2540 if (rt->rt_gateway)
2541 pkey = &rt->rt_gateway;
2542
4a71df50
FB		 2543 /* IPv4 */
2544 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2545 memset(hdr->hdr.l3.dest_addr, 0, 12);
87e7597b 2546 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
4a71df50 2547 } else if (ipv == 6) {
87e7597b
DM		 2548 struct rt6_info *rt = (struct rt6_info *) dst;
2549 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2550
2551 if (!ipv6_addr_any(&rt->rt6i_gateway))
2552 pkey = &rt->rt6i_gateway;
2553
4a71df50
FB		 2554 /* IPv6 */
2555 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2556 if (card->info.type == QETH_CARD_TYPE_IQD)
2557 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
87e7597b 2558 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
4a71df50 2559 } else {
1abd2296 2560 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4a71df50
FB		 2561 skb->dev->broadcast, 6)) {
2562 /* broadcast? */
2563 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2564 QETH_HDR_PASSTHRU;
2565 } else {
2566 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2567 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2568 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2569 }
2570 }
1d36cb47 2571 rcu_read_unlock();
4a71df50
FB		 2572}
2573
f6b85b6c
FB		 2574static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2575 struct qeth_hdr *hdr, struct sk_buff *skb)
2576{
2577 struct iphdr *iph = ip_hdr(skb);
2578
2579 /* tcph->check contains already the pseudo hdr checksum
2580 * so just set the header flags
2581 */
2582 if (iph->protocol == IPPROTO_UDP)
2583 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
16c0f936
FB		 2584 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2585 QETH_HDR_EXT_CSUM_HDR_REQ;
2586 iph->check = 0;
f6b85b6c
FB		 2587 if (card->options.performance_stats)
2588 card->perf_stats.tx_csum++;
2589}
2590
64ef8957
FB		 2591static void qeth_tso_fill_header(struct qeth_card *card,
2592 struct qeth_hdr *qhdr, struct sk_buff *skb)
2593{
2594 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2595 struct tcphdr *tcph = tcp_hdr(skb);
2596 struct iphdr *iph = ip_hdr(skb);
2597 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2598
2599 /*fix header to TSO values ...*/
2600 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
8fa9208e 2601 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
64ef8957
FB		 2602 /*set values which are fix for the first approach ...*/
2603 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2604 hdr->ext.imb_hdr_no = 1;
2605 hdr->ext.hdr_type = 1;
2606 hdr->ext.hdr_version = 1;
2607 hdr->ext.hdr_len = 28;
2608 /*insert non-fix values */
2609 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2610 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2611 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2612 sizeof(struct qeth_hdr_tso));
2613 tcph->check = 0;
6bee4e26 2614 if (be16_to_cpu(skb->protocol) == ETH_P_IPV6) {
64ef8957
FB		 2615 ip6h->payload_len = 0;
2616 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2617 0, IPPROTO_TCP, 0);
2618 } else {
2619 /*OSA want us to set these values ...*/
2620 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2621 0, IPPROTO_TCP, 0);
2622 iph->tot_len = 0;
2623 iph->check = 0;
2624 }
2625}
2626
2863c613 2627/**
41aeed58
EC		 2628 * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
2629 * @card: qeth card structure, to check max. elems.
2630 * @skb: SKB address
2631 * @extra_elems: extra elems needed, to check against max.
2863c613
EC		 2632 *
2633 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
2634 * skb data, including linear part and fragments, but excluding TCP header.
2635 * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
2636 * Checks if the result plus extra_elems fits under the limit for the card.
2637 * Returns 0 if it does not.
2638 * Note: extra_elems is not included in the returned result.
2639 */
41aeed58 2640static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
2863c613 2641 struct sk_buff *skb, int extra_elems)
c3b4a740 2642{
2863c613
EC		 2643 addr_t tcpdptr = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
2644 int elements = qeth_get_elements_for_range(
2645 tcpdptr,
2646 (addr_t)skb->data + skb_headlen(skb)) +
8f43fb00 2647 qeth_get_elements_for_frags(skb);
271648b4 2648
2863c613
EC		 2649 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2650 QETH_DBF_MESSAGE(2,
2651 "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
2652 elements + extra_elems, skb->len);
2653 return 0;
2654 }
c3b4a740
FB		 2655 return elements;
2656}
2657
e38db6be
JW		 2658static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb,
2659 struct net_device *dev)
4a71df50
FB		 2660{
2661 int rc;
6bee4e26 2662 __be16 *tag;
4a71df50 2663 struct qeth_hdr *hdr = NULL;
2863c613
EC		 2664 int hdr_elements = 0;
2665 int elements;
509e2562 2666 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2667 struct sk_buff *new_skb = NULL;
2668 int ipv = qeth_get_ip_version(skb);
ce73e10e 2669 int cast_type = qeth_l3_get_cast_type(card, skb);
290b8348
SR		 2670 struct qeth_qdio_out_q *queue =
2671 card->qdio.out_qs[card->qdio.do_prio_queueing
2672 || (cast_type && card->info.is_multicast_different) ?
2673 qeth_get_priority_queue(card, skb, ipv, cast_type) :
2674 card->qdio.default_out_queue];
4a71df50 2675 int tx_bytes = skb->len;
41aeed58 2676 bool use_tso;
683d718a 2677 int data_offset = -1;
64ef8957 2678 int nr_frags;
4a71df50 2679
b3332930
FB		 2680 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2681 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2682 ((card->options.cq == QETH_CQ_ENABLED) &&
6bee4e26 2683 (be16_to_cpu(skb->protocol) != ETH_P_AF_IUCV)))) ||
b3332930 2684 card->options.sniffer)
4a71df50
FB		 2685 goto tx_drop;
2686
2687 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2688 card->stats.tx_carrier_errors++;
2689 goto tx_drop;
2690 }
2691
2692 if ((cast_type == RTN_BROADCAST) &&
2693 (card->info.broadcast_capable == 0))
2694 goto tx_drop;
2695
2696 if (card->options.performance_stats) {
2697 card->perf_stats.outbound_cnt++;
2698 card->perf_stats.outbound_start_time = qeth_get_micros();
2699 }
2700
41aeed58
EC		 2701 /* Ignore segment size from skb_is_gso(), 1 page is always used. */
2702 use_tso = skb_is_gso(skb) &&
2703 (qeth_get_ip_protocol(skb) == IPPROTO_TCP) && (ipv == 4);
683d718a 2704
41aeed58
EC		 2705 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2706 !skb_is_nonlinear(skb)) {
683d718a 2707 new_skb = skb;
acd9776b 2708 data_offset = ETH_HLEN;
683d718a
FB		 2709 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2710 if (!hdr)
2711 goto tx_drop;
2863c613 2712 hdr_elements++;
683d718a
FB		 2713 } else {
2714 /* create a clone with writeable headroom */
2715 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2716 + VLAN_HLEN);
2717 if (!new_skb)
2718 goto tx_drop;
2719 }
4a71df50
FB		 2720
2721 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 2722 if (data_offset < 0)
2723 skb_pull(new_skb, ETH_HLEN);
4a71df50 2724 } else {
21fde749 2725 if (ipv == 4) {
1abd2296 2726 skb_pull(new_skb, ETH_HLEN);
4a71df50
FB		 2727 }
2728
df8a39de 2729 if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
4a71df50
FB		 2730 skb_push(new_skb, VLAN_HLEN);
2731 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2732 skb_copy_to_linear_data_offset(new_skb, 4,
2733 new_skb->data + 8, 4);
2734 skb_copy_to_linear_data_offset(new_skb, 8,
2735 new_skb->data + 12, 4);
6bee4e26
HW		 2736 tag = (__be16 *)(new_skb->data + 12);
2737 *tag = cpu_to_be16(ETH_P_8021Q);
2738 *(tag + 1) = cpu_to_be16(skb_vlan_tag_get(new_skb));
4a71df50
FB		 2739 }
2740 }
2741
2742 netif_stop_queue(dev);
2743
4a71df50 2744 /* fix hardware limitation: as long as we do not have sbal
64ef8957 2745 * chaining we can not send long frag lists
4a71df50 2746 */
41aeed58
EC		 2747 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
2748 ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) ||
7d969d2e 2749 (!use_tso && !qeth_get_elements_no(card, new_skb, 0, 0)))) {
6059c905
EC		 2750 int lin_rc = skb_linearize(new_skb);
2751
2752 if (card->options.performance_stats) {
2753 if (lin_rc)
2754 card->perf_stats.tx_linfail++;
2755 else
2756 card->perf_stats.tx_lin++;
2757 }
2758 if (lin_rc)
41aeed58 2759 goto tx_drop;
64ef8957 2760 }
4a71df50 2761
41aeed58 2762 if (use_tso) {
4a71df50
FB		 2763 hdr = (struct qeth_hdr *)skb_push(new_skb,
2764 sizeof(struct qeth_hdr_tso));
2765 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2766 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2767 qeth_tso_fill_header(card, hdr, new_skb);
2863c613 2768 hdr_elements++;
4a71df50 2769 } else {
683d718a
FB		 2770 if (data_offset < 0) {
2771 hdr = (struct qeth_hdr *)skb_push(new_skb,
4a71df50 2772 sizeof(struct qeth_hdr));
683d718a
FB		 2773 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2774 cast_type);
2775 } else {
6bee4e26 2776 if (be16_to_cpu(new_skb->protocol) == ETH_P_AF_IUCV)
b3332930
FB		 2777 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
2778 else {
2779 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2780 cast_type);
2781 hdr->hdr.l3.length = new_skb->len - data_offset;
2782 }
683d718a 2783 }
f6b85b6c
FB		 2784
2785 if (skb->ip_summed == CHECKSUM_PARTIAL)
2786 qeth_l3_hdr_csum(card, hdr, new_skb);
4a71df50
FB		 2787 }
2788
41aeed58
EC		 2789 elements = use_tso ?
2790 qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) :
7d969d2e
JW		 2791 qeth_get_elements_no(card, new_skb, hdr_elements,
2792 (data_offset > 0) ? data_offset : 0);
2863c613 2793 if (!elements) {
64ef8957
FB		 2794 if (data_offset >= 0)
2795 kmem_cache_free(qeth_core_header_cache, hdr);
2796 goto tx_drop;
f61a0d05 2797 }
2863c613 2798 elements += hdr_elements;
4a71df50 2799
51aa165c
FB		 2800 if (card->info.type != QETH_CARD_TYPE_IQD) {
2801 int len;
41aeed58 2802 if (use_tso)
51aa165c 2803 len = ((unsigned long)tcp_hdr(new_skb) +
2863c613 2804 tcp_hdrlen(new_skb)) -
51aa165c
FB		 2805 (unsigned long)new_skb->data;
2806 else
2807 len = sizeof(struct qeth_hdr_layer3);
2808
d4ae1f5e 2809 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
51aa165c 2810 goto tx_drop;
2863c613 2811 rc = qeth_do_send_packet(card, queue, new_skb, hdr, elements);
51aa165c 2812 } else
4a71df50 2813 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4e8d7e62 2814 data_offset, 0);
4a71df50
FB		 2815
2816 if (!rc) {
2817 card->stats.tx_packets++;
2818 card->stats.tx_bytes += tx_bytes;
2819 if (new_skb != skb)
2820 dev_kfree_skb_any(skb);
2821 if (card->options.performance_stats) {
2863c613 2822 nr_frags = skb_shinfo(new_skb)->nr_frags;
41aeed58 2823 if (use_tso) {
4a71df50
FB		 2824 card->perf_stats.large_send_bytes += tx_bytes;
2825 card->perf_stats.large_send_cnt++;
2826 }
64ef8957 2827 if (nr_frags) {
4a71df50
FB		 2828 card->perf_stats.sg_skbs_sent++;
2829 /* nr_frags + skb->data */
64ef8957 2830 card->perf_stats.sg_frags_sent += nr_frags + 1;
4a71df50
FB		 2831 }
2832 }
ec634fe3 2833 rc = NETDEV_TX_OK;
4a71df50 2834 } else {
683d718a
FB		 2835 if (data_offset >= 0)
2836 kmem_cache_free(qeth_core_header_cache, hdr);
2837
4a71df50
FB		 2838 if (rc == -EBUSY) {
2839 if (new_skb != skb)
2840 dev_kfree_skb_any(new_skb);
2841 return NETDEV_TX_BUSY;
2842 } else
2843 goto tx_drop;
2844 }
2845
2846 netif_wake_queue(dev);
2847 if (card->options.performance_stats)
2848 card->perf_stats.outbound_time += qeth_get_micros() -
2849 card->perf_stats.outbound_start_time;
2850 return rc;
2851
2852tx_drop:
2853 card->stats.tx_dropped++;
2854 card->stats.tx_errors++;
2855 if ((new_skb != skb) && new_skb)
2856 dev_kfree_skb_any(new_skb);
2857 dev_kfree_skb_any(skb);
d0ec0f54 2858 netif_wake_queue(dev);
4a71df50
FB		 2859 return NETDEV_TX_OK;
2860}
2861
39423440 2862static int __qeth_l3_open(struct net_device *dev)
4a71df50 2863{
509e2562 2864 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 2865 int rc = 0;
4a71df50 2866
847a50fd 2867 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 2868 if (card->state == CARD_STATE_UP)
2869 return rc;
4a71df50
FB		 2870 if (card->state != CARD_STATE_SOFTSETUP)
2871 return -ENODEV;
2872 card->data.state = CH_STATE_UP;
2873 card->state = CARD_STATE_UP;
4a71df50
FB		 2874 netif_start_queue(dev);
2875
a1c3ed4c
FB		 2876 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
2877 napi_enable(&card->napi);
2878 napi_schedule(&card->napi);
2879 } else
2880 rc = -EIO;
2881 return rc;
4a71df50
FB		 2882}
2883
39423440
UB		 2884static int qeth_l3_open(struct net_device *dev)
2885{
2886 struct qeth_card *card = dev->ml_priv;
2887
2888 QETH_CARD_TEXT(card, 5, "qethope_");
2889 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2890 QETH_CARD_TEXT(card, 3, "openREC");
2891 return -ERESTARTSYS;
2892 }
2893 return __qeth_l3_open(dev);
2894}
2895
4a71df50
FB		 2896static int qeth_l3_stop(struct net_device *dev)
2897{
509e2562 2898 struct qeth_card *card = dev->ml_priv;
4a71df50 2899
847a50fd 2900 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 2901 netif_tx_disable(dev);
a1c3ed4c 2902 if (card->state == CARD_STATE_UP) {
4a71df50 2903 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 2904 napi_disable(&card->napi);
2905 }
4a71df50
FB		 2906 return 0;
2907}
2908
0fc0b732 2909static const struct ethtool_ops qeth_l3_ethtool_ops = {
4a71df50 2910 .get_link = ethtool_op_get_link,
4a71df50
FB		 2911 .get_strings = qeth_core_get_strings,
2912 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 2913 .get_sset_count = qeth_core_get_sset_count,
4a71df50 2914 .get_drvinfo = qeth_core_get_drvinfo,
993e19c0 2915 .get_link_ksettings = qeth_core_ethtool_get_link_ksettings,
4a71df50
FB		 2916};
2917
2918/*
2919 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
2920 * NOARP on the netdevice is no option because it also turns off neighbor
2921 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
2922 * arp resolution but we want the hard header (packet socket will work
2923 * e.g. tcpdump)
2924 */
2925static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
2926{
2927 n->nud_state = NUD_NOARP;
2928 memcpy(n->ha, "FAKELL", 6);
2929 n->output = n->ops->connected_output;
2930 return 0;
2931}
2932
2933static int
2934qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
2935{
2936 if (np->tbl->family == AF_INET)
2937 np->neigh_setup = qeth_l3_neigh_setup_noarp;
2938
2939 return 0;
2940}
2941
3d58cefd 2942static const struct net_device_ops qeth_l3_netdev_ops = {
8403b13c
FB		 2943 .ndo_open = qeth_l3_open,
2944 .ndo_stop = qeth_l3_stop,
2945 .ndo_get_stats = qeth_get_stats,
2946 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2947 .ndo_validate_addr = eth_validate_addr,
afc4b13d 2948 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
942d6984 2949 .ndo_do_ioctl = qeth_do_ioctl,
7ff0bcf6 2950 .ndo_change_mtu = qeth_change_mtu,
8f43fb00
TR		 2951 .ndo_fix_features = qeth_fix_features,
2952 .ndo_set_features = qeth_set_features,
8403b13c
FB		 2953 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2954 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 2955 .ndo_tx_timeout = qeth_tx_timeout,
8403b13c
FB		 2956};
2957
3d58cefd
FB		 2958static const struct net_device_ops qeth_l3_osa_netdev_ops = {
2959 .ndo_open = qeth_l3_open,
2960 .ndo_stop = qeth_l3_stop,
2961 .ndo_get_stats = qeth_get_stats,
2962 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2963 .ndo_validate_addr = eth_validate_addr,
afc4b13d 2964 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
942d6984 2965 .ndo_do_ioctl = qeth_do_ioctl,
7ff0bcf6 2966 .ndo_change_mtu = qeth_change_mtu,
8f43fb00
TR		 2967 .ndo_fix_features = qeth_fix_features,
2968 .ndo_set_features = qeth_set_features,
3d58cefd
FB		 2969 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2970 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 2971 .ndo_tx_timeout = qeth_tx_timeout,
3d58cefd
FB		 2972 .ndo_neigh_setup = qeth_l3_neigh_setup,
2973};
2974
4a71df50
FB		 2975static int qeth_l3_setup_netdev(struct qeth_card *card)
2976{
1aec42bc
TR		 2977 int rc;
2978
5113fec0
UB		 2979 if (card->info.type == QETH_CARD_TYPE_OSD ||
2980 card->info.type == QETH_CARD_TYPE_OSX) {
4a71df50
FB		 2981 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
2982 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
1abd2296
PG		 2983 pr_info("qeth_l3: ignoring TR device\n");
2984 return -ENODEV;
4a71df50
FB		 2985 } else {
2986 card->dev = alloc_etherdev(0);
2987 if (!card->dev)
2988 return -ENODEV;
3d58cefd 2989 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
4a71df50
FB		 2990
2991 /*IPv6 address autoconfiguration stuff*/
2992 qeth_l3_get_unique_id(card);
2993 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
2994 card->dev->dev_id = card->info.unique_id &
2995 0xffff;
c5e631a8
FB		 2996 if (!card->info.guestlan) {
2997 card->dev->hw_features = NETIF_F_SG |
2998 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
2999 NETIF_F_TSO;
9bdc4411
HW		 3000 card->dev->vlan_features = NETIF_F_SG |
3001 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3002 NETIF_F_TSO;
c5e631a8 3003 }
4a71df50
FB		 3004 }
3005 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
c835a677
TG		 3006 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
3007 ether_setup);
4a71df50
FB		 3008 if (!card->dev)
3009 return -ENODEV;
3010 card->dev->flags |= IFF_NOARP;
3d58cefd 3011 card->dev->netdev_ops = &qeth_l3_netdev_ops;
1aec42bc
TR		 3012 rc = qeth_l3_iqd_read_initial_mac(card);
3013 if (rc)
3014 return rc;
b3332930
FB		 3015 if (card->options.hsuid[0])
3016 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
4a71df50
FB		 3017 } else
3018 return -ENODEV;
3019
509e2562 3020 card->dev->ml_priv = card;
4a71df50 3021 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 3022 card->dev->mtu = card->info.initial_mtu;
46b3ef4c
JW		 3023 card->dev->min_mtu = 64;
3024 card->dev->max_mtu = ETH_MAX_MTU;
7ad24ea4 3025 card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
f646968f
PM		 3026 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
3027 NETIF_F_HW_VLAN_CTAG_RX |
3028 NETIF_F_HW_VLAN_CTAG_FILTER;
02875878 3029 netif_keep_dst(card->dev);
8bad55f8
EC		 3030 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
3031 PAGE_SIZE;
4a71df50
FB		 3032
3033 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
d73ef324 3034 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
e5ebe632 3035 netif_carrier_off(card->dev);
4a71df50
FB		 3036 return register_netdev(card->dev);
3037}
3038
4a71df50
FB		 3039static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3040{
3041 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
9111e788 3042 int rc;
4a71df50 3043
9111e788
UB		 3044 rc = qeth_l3_create_device_attributes(&gdev->dev);
3045 if (rc)
3046 return rc;
ebccc739
UB		 3047 hash_init(card->ip_htable);
3048 hash_init(card->ip_mc_htable);
4a71df50 3049 card->options.layer2 = 0;
1da74b1c 3050 card->info.hwtrap = 0;
4a71df50
FB		 3051 return 0;
3052}
3053
3054static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3055{
3056 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3057
9dc48ccc
UB		 3058 qeth_l3_remove_device_attributes(&cgdev->dev);
3059
f2148565 3060 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 3061 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3062
70919e23 3063 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 3064 qeth_l3_set_offline(cgdev);
4a71df50
FB		 3065
3066 if (card->dev) {
7831b4ff 3067 netif_napi_del(&card->napi);
4a71df50
FB		 3068 unregister_netdev(card->dev);
3069 card->dev = NULL;
3070 }
3071
5f78e29c 3072 qeth_l3_clear_ip_htable(card, 0);
4a71df50
FB		 3073 qeth_l3_clear_ipato_list(card);
3074 return;
3075}
3076
3077static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3078{
3079 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3080 int rc = 0;
3081 enum qeth_card_states recover_flag;
3082
9dc48ccc 3083 mutex_lock(&card->discipline_mutex);
c4949f07 3084 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3085 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3086 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 3087
4a71df50 3088 recover_flag = card->state;
4a71df50
FB		 3089 rc = qeth_core_hardsetup_card(card);
3090 if (rc) {
1aec42bc 3091 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
aa909224 3092 rc = -ENODEV;
4a71df50
FB		 3093 goto out_remove;
3094 }
3095
aa909224
UB		 3096 if (!card->dev && qeth_l3_setup_netdev(card)) {
3097 rc = -ENODEV;
4a71df50 3098 goto out_remove;
aa909224 3099 }
4a71df50 3100
1da74b1c
FB		 3101 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3102 if (card->info.hwtrap &&
3103 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3104 card->info.hwtrap = 0;
3105 } else
3106 card->info.hwtrap = 0;
3107
4a71df50 3108 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 3109 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 3110 qeth_print_status_message(card);
3111
3112 /* softsetup */
d11ba0c4 3113 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50 3114
4a71df50
FB		 3115 rc = qeth_l3_setadapter_parms(card);
3116 if (rc)
1aec42bc 3117 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
76b11f8e
UB		 3118 if (!card->options.sniffer) {
3119 rc = qeth_l3_start_ipassists(card);
0f54761d 3120 if (rc) {
76b11f8e 3121 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
0f54761d
SR		 3122 goto out_remove;
3123 }
76b11f8e
UB		 3124 rc = qeth_l3_setrouting_v4(card);
3125 if (rc)
1aec42bc 3126 QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
76b11f8e
UB		 3127 rc = qeth_l3_setrouting_v6(card);
3128 if (rc)
1aec42bc 3129 QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
76b11f8e 3130 }
4a71df50
FB		 3131 netif_tx_disable(card->dev);
3132
3133 rc = qeth_init_qdio_queues(card);
3134 if (rc) {
d11ba0c4 3135 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 3136 rc = -ENODEV;
4a71df50
FB		 3137 goto out_remove;
3138 }
3139 card->state = CARD_STATE_SOFTSETUP;
4a71df50
FB		 3140
3141 qeth_set_allowed_threads(card, 0xffffffff, 0);
5f78e29c 3142 qeth_l3_recover_ip(card);
2b6203bb
UB		 3143 if (card->lan_online)
3144 netif_carrier_on(card->dev);
3145 else
3146 netif_carrier_off(card->dev);
8af7c5ae 3147 if (recover_flag == CARD_STATE_RECOVER) {
4763b0a0 3148 rtnl_lock();
8af7c5ae 3149 if (recovery_mode)
39423440 3150 __qeth_l3_open(card->dev);
4763b0a0 3151 else
8af7c5ae 3152 dev_open(card->dev);
8af7c5ae 3153 qeth_l3_set_multicast_list(card->dev);
e830baa9 3154 qeth_recover_features(card->dev);
4763b0a0 3155 rtnl_unlock();
4a71df50 3156 }
82f77cf9 3157 qeth_trace_features(card);
4a71df50
FB		 3158 /* let user_space know that device is online */
3159 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3160 mutex_unlock(&card->conf_mutex);
9dc48ccc 3161 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3162 return 0;
3163out_remove:
4a71df50
FB		 3164 qeth_l3_stop_card(card, 0);
3165 ccw_device_set_offline(CARD_DDEV(card));
3166 ccw_device_set_offline(CARD_WDEV(card));
3167 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 3168 qdio_free(CARD_DDEV(card));
4a71df50
FB		 3169 if (recover_flag == CARD_STATE_RECOVER)
3170 card->state = CARD_STATE_RECOVER;
3171 else
3172 card->state = CARD_STATE_DOWN;
c4949f07 3173 mutex_unlock(&card->conf_mutex);
9dc48ccc 3174 mutex_unlock(&card->discipline_mutex);
aa909224 3175 return rc;
4a71df50
FB		 3176}
3177
3178static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3179{
3180 return __qeth_l3_set_online(gdev, 0);
3181}
3182
3183static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3184 int recovery_mode)
3185{
3186 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3187 int rc = 0, rc2 = 0, rc3 = 0;
3188 enum qeth_card_states recover_flag;
3189
9dc48ccc 3190 mutex_lock(&card->discipline_mutex);
c4949f07 3191 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3192 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3193 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 3194
3195 if (card->dev && netif_carrier_ok(card->dev))
3196 netif_carrier_off(card->dev);
3197 recover_flag = card->state;
1da74b1c
FB		 3198 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3199 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3200 card->info.hwtrap = 1;
3201 }
0f5623c9 3202 qeth_l3_stop_card(card, recovery_mode);
72861ae7
EL		 3203 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3204 rtnl_lock();
3205 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3206 rtnl_unlock();
3207 }
4a71df50
FB		 3208 rc = ccw_device_set_offline(CARD_DDEV(card));
3209 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3210 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3211 if (!rc)
3212 rc = (rc2) ? rc2 : rc3;
3213 if (rc)
d11ba0c4 3214 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 3215 qdio_free(CARD_DDEV(card));
4a71df50
FB		 3216 if (recover_flag == CARD_STATE_UP)
3217 card->state = CARD_STATE_RECOVER;
3218 /* let user_space know that device is offline */
3219 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3220 mutex_unlock(&card->conf_mutex);
9dc48ccc 3221 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3222 return 0;
3223}
3224
3225static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3226{
3227 return __qeth_l3_set_offline(cgdev, 0);
3228}
3229
3230static int qeth_l3_recover(void *ptr)
3231{
3232 struct qeth_card *card;
3233 int rc = 0;
3234
3235 card = (struct qeth_card *) ptr;
847a50fd
CO		 3236 QETH_CARD_TEXT(card, 2, "recover1");
3237 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50
FB		 3238 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3239 return 0;
847a50fd 3240 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 3241 dev_warn(&card->gdev->dev,
3242 "A recovery process has been started for the device\n");
65d8013c 3243 qeth_set_recovery_task(card);
4a71df50
FB		 3244 __qeth_l3_set_offline(card->gdev, 1);
3245 rc = __qeth_l3_set_online(card->gdev, 1);
4a71df50 3246 if (!rc)
74eacdb9
FB		 3247 dev_info(&card->gdev->dev,
3248 "Device successfully recovered!\n");
28a7e4c9 3249 else {
0f54761d
SR		 3250 qeth_close_dev(card);
3251 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 3252 "failed to recover an error on the device\n");
28a7e4c9 3253 }
65d8013c 3254 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 3255 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3256 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 3257 return 0;
3258}
3259
bbcfcdc8
FB		 3260static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3261{
3262 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3263
3264 if (card->dev)
3265 netif_device_detach(card->dev);
3266 qeth_set_allowed_threads(card, 0, 1);
3267 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3268 if (gdev->state == CCWGROUP_OFFLINE)
3269 return 0;
3270 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 3271 if (card->info.hwtrap)
3272 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 3273 __qeth_l3_set_offline(card->gdev, 1);
3274 } else
3275 __qeth_l3_set_offline(card->gdev, 0);
3276 return 0;
3277}
3278
3279static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3280{
3281 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3282 int rc = 0;
3283
3284 if (gdev->state == CCWGROUP_OFFLINE)
3285 goto out;
3286
3287 if (card->state == CARD_STATE_RECOVER) {
3288 rc = __qeth_l3_set_online(card->gdev, 1);
3289 if (rc) {
869da90b
UB		 3290 rtnl_lock();
3291 dev_close(card->dev);
3292 rtnl_unlock();
bbcfcdc8
FB		 3293 }
3294 } else
3295 rc = __qeth_l3_set_online(card->gdev, 0);
3296out:
3297 qeth_set_allowed_threads(card, 0xffffffff, 0);
3298 if (card->dev)
3299 netif_device_attach(card->dev);
3300 if (rc)
3301 dev_warn(&card->gdev->dev, "The qeth device driver "
3302 "failed to recover an error on the device\n");
3303 return rc;
3304}
3305
c044dc21
EC		 3306/* Returns zero if the command is successfully "consumed" */
3307static int qeth_l3_control_event(struct qeth_card *card,
3308 struct qeth_ipa_cmd *cmd)
3309{
3310 return 1;
3311}
3312
c041f2d4 3313struct qeth_discipline qeth_l3_discipline = {
2d2ebb3e 3314 .devtype = &qeth_generic_devtype,
c041f2d4
SO		 3315 .start_poll = qeth_qdio_start_poll,
3316 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3317 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
d73ef324 3318 .process_rx_buffer = qeth_l3_process_inbound_buffer,
c041f2d4
SO		 3319 .recover = qeth_l3_recover,
3320 .setup = qeth_l3_probe_device,
4a71df50
FB		 3321 .remove = qeth_l3_remove_device,
3322 .set_online = qeth_l3_set_online,
3323 .set_offline = qeth_l3_set_offline,
bbcfcdc8
FB		 3324 .freeze = qeth_l3_pm_suspend,
3325 .thaw = qeth_l3_pm_resume,
3326 .restore = qeth_l3_pm_resume,
942d6984 3327 .do_ioctl = qeth_l3_do_ioctl,
c044dc21 3328 .control_event_handler = qeth_l3_control_event,
4a71df50 3329};
c041f2d4 3330EXPORT_SYMBOL_GPL(qeth_l3_discipline);
4a71df50
FB		 3331
3332static int qeth_l3_ip_event(struct notifier_block *this,
76fef2b6 3333 unsigned long event, void *ptr)
4a71df50 3334{
5f78e29c 3335
4a71df50
FB		 3336 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3337 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3338 struct qeth_ipaddr *addr;
3339 struct qeth_card *card;
3340
c346dca1 3341 if (dev_net(dev) != &init_net)
76fef2b6
DM		 3342 return NOTIFY_DONE;
3343
4a71df50
FB		 3344 card = qeth_l3_get_card_from_dev(dev);
3345 if (!card)
3346 return NOTIFY_DONE;
6d8823db 3347 QETH_CARD_TEXT(card, 3, "ipevent");
4a71df50
FB		 3348
3349 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
5f78e29c 3350 if (addr) {
6bee4e26
HW		 3351 addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
3352 addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
4a71df50
FB		 3353 addr->type = QETH_IP_TYPE_NORMAL;
3354 } else
5f78e29c 3355 return NOTIFY_DONE;
4a71df50
FB		 3356
3357 switch (event) {
3358 case NETDEV_UP:
5f78e29c
LD		 3359 spin_lock_bh(&card->ip_lock);
3360 qeth_l3_add_ip(card, addr);
3361 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3362 break;
3363 case NETDEV_DOWN:
5f78e29c
LD		 3364 spin_lock_bh(&card->ip_lock);
3365 qeth_l3_delete_ip(card, addr);
3366 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3367 break;
3368 }
5f78e29c
LD		 3369
3370 kfree(addr);
4a71df50
FB		 3371 return NOTIFY_DONE;
3372}
3373
3374static struct notifier_block qeth_l3_ip_notifier = {
3375 qeth_l3_ip_event,
3376 NULL,
3377};
3378
3379#ifdef CONFIG_QETH_IPV6
3380/**
3381 * IPv6 event handler
3382 */
3383static int qeth_l3_ip6_event(struct notifier_block *this,
76fef2b6 3384 unsigned long event, void *ptr)
4a71df50
FB		 3385{
3386 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3387 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3388 struct qeth_ipaddr *addr;
3389 struct qeth_card *card;
3390
4a71df50
FB		 3391 card = qeth_l3_get_card_from_dev(dev);
3392 if (!card)
3393 return NOTIFY_DONE;
847a50fd 3394 QETH_CARD_TEXT(card, 3, "ip6event");
4a71df50
FB		 3395 if (!qeth_is_supported(card, IPA_IPV6))
3396 return NOTIFY_DONE;
3397
3398 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
5f78e29c 3399 if (addr) {
4a71df50
FB		 3400 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3401 addr->u.a6.pfxlen = ifa->prefix_len;
3402 addr->type = QETH_IP_TYPE_NORMAL;
3403 } else
5f78e29c 3404 return NOTIFY_DONE;
4a71df50
FB		 3405
3406 switch (event) {
3407 case NETDEV_UP:
5f78e29c
LD		 3408 spin_lock_bh(&card->ip_lock);
3409 qeth_l3_add_ip(card, addr);
3410 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3411 break;
3412 case NETDEV_DOWN:
5f78e29c
LD		 3413 spin_lock_bh(&card->ip_lock);
3414 qeth_l3_delete_ip(card, addr);
3415 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3416 break;
3417 }
5f78e29c
LD		 3418
3419 kfree(addr);
4a71df50
FB		 3420 return NOTIFY_DONE;
3421}
3422
3423static struct notifier_block qeth_l3_ip6_notifier = {
3424 qeth_l3_ip6_event,
3425 NULL,
3426};
3427#endif
3428
3429static int qeth_l3_register_notifiers(void)
3430{
3431 int rc;
3432
847a50fd 3433 QETH_DBF_TEXT(SETUP, 5, "regnotif");
4a71df50
FB		 3434 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3435 if (rc)
3436 return rc;
3437#ifdef CONFIG_QETH_IPV6
3438 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3439 if (rc) {
3440 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3441 return rc;
3442 }
3443#else
baebc70a 3444 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
4a71df50
FB		 3445#endif
3446 return 0;
3447}
3448
3449static void qeth_l3_unregister_notifiers(void)
3450{
3451
847a50fd 3452 QETH_DBF_TEXT(SETUP, 5, "unregnot");
18af5c17 3453 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
4a71df50 3454#ifdef CONFIG_QETH_IPV6
18af5c17 3455 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
4a71df50
FB		 3456#endif /* QETH_IPV6 */
3457}
3458
3459static int __init qeth_l3_init(void)
3460{
3461 int rc = 0;
3462
74eacdb9 3463 pr_info("register layer 3 discipline\n");
4a71df50
FB		 3464 rc = qeth_l3_register_notifiers();
3465 return rc;
3466}
3467
3468static void __exit qeth_l3_exit(void)
3469{
3470 qeth_l3_unregister_notifiers();
74eacdb9 3471 pr_info("unregister layer 3 discipline\n");
4a71df50
FB		 3472}
3473
3474module_init(qeth_l3_init);
3475module_exit(qeth_l3_exit);
3476MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3477MODULE_DESCRIPTION("qeth layer 3 discipline");
3478MODULE_LICENSE("GPL");
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