2 * drivers/s390/net/qeth_l3_main.c
4 * Copyright IBM Corp. 2007, 2009
5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
11 #define KMSG_COMPONENT "qeth"
12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/bitops.h>
17 #include <linux/string.h>
18 #include <linux/errno.h>
19 #include <linux/kernel.h>
20 #include <linux/etherdevice.h>
21 #include <linux/mii.h>
23 #include <linux/ipv6.h>
24 #include <linux/inetdevice.h>
25 #include <linux/igmp.h>
26 #include <linux/slab.h>
27 #include <linux/if_vlan.h>
31 #include <net/route.h>
32 #include <net/ip6_fib.h>
33 #include <net/ip6_checksum.h>
34 #include <net/iucv/af_iucv.h>
39 static int qeth_l3_set_offline(struct ccwgroup_device *);
40 static int qeth_l3_recover(void *);
41 static int qeth_l3_stop(struct net_device *);
42 static void qeth_l3_set_multicast_list(struct net_device *);
43 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
44 static int qeth_l3_register_addr_entry(struct qeth_card *,
45 struct qeth_ipaddr *);
46 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
47 struct qeth_ipaddr *);
48 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
49 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
51 static int qeth_l3_isxdigit(char *buf)
54 if (!isxdigit(*buf++))
60 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
62 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
65 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
67 int count = 0, rc = 0;
71 rc = sscanf(buf, "%u.%u.%u.%u%c",
72 &in[0], &in[1], &in[2], &in[3], &c);
73 if (rc != 4 && (rc != 5 || c != '\n'))
75 for (count = 0; count < 4; count++) {
78 addr[count] = in[count];
83 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
85 sprintf(buf, "%pI6", addr);
88 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
90 const char *end, *end_tmp, *start;
93 int num2, cnt, out, found, save_cnt;
94 unsigned short in_tmp[8] = {0, };
96 cnt = out = found = save_cnt = num2 = 0;
101 end = strchr(start, ':');
103 end = buf + strlen(buf);
104 end_tmp = strchr(start, '\n');
111 if ((end - start) > 4)
113 memcpy(num, start, end - start);
114 if (!qeth_l3_isxdigit(num))
116 sscanf(start, "%x", &num2);
118 in_tmp[save_cnt++] = num2;
130 if (cnt + save_cnt > 8)
134 in[cnt--] = in_tmp[--save_cnt];
138 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
141 if (proto == QETH_PROT_IPV4)
142 qeth_l3_ipaddr4_to_string(addr, buf);
143 else if (proto == QETH_PROT_IPV6)
144 qeth_l3_ipaddr6_to_string(addr, buf);
147 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
150 if (proto == QETH_PROT_IPV4)
151 return qeth_l3_string_to_ipaddr4(buf, addr);
152 else if (proto == QETH_PROT_IPV6)
153 return qeth_l3_string_to_ipaddr6(buf, addr);
158 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
163 for (i = 0; i < len; ++i) {
165 for (j = 7; j >= 0; --j) {
166 bits[i*8 + j] = octet & 1;
172 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
173 struct qeth_ipaddr *addr)
175 struct qeth_ipato_entry *ipatoe;
176 u8 addr_bits[128] = {0, };
177 u8 ipatoe_bits[128] = {0, };
180 if (!card->ipato.enabled)
183 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
184 (addr->proto == QETH_PROT_IPV4)? 4:16);
185 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
186 if (addr->proto != ipatoe->proto)
188 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
189 (ipatoe->proto == QETH_PROT_IPV4) ?
191 if (addr->proto == QETH_PROT_IPV4)
192 rc = !memcmp(addr_bits, ipatoe_bits,
193 min(32, ipatoe->mask_bits));
195 rc = !memcmp(addr_bits, ipatoe_bits,
196 min(128, ipatoe->mask_bits));
201 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
203 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
210 * Add IP to be added to todo list. If there is already an "add todo"
211 * in this list we just incremenent the reference count.
212 * Returns 0 if we just incremented reference count.
214 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
215 struct qeth_ipaddr *addr, int add)
217 struct qeth_ipaddr *tmp, *t;
220 if (card->options.sniffer)
222 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
223 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
224 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
226 if ((tmp->proto == QETH_PROT_IPV4) &&
227 (addr->proto == QETH_PROT_IPV4) &&
228 (tmp->type == addr->type) &&
229 (tmp->is_multicast == addr->is_multicast) &&
230 (tmp->u.a4.addr == addr->u.a4.addr) &&
231 (tmp->u.a4.mask == addr->u.a4.mask)) {
235 if ((tmp->proto == QETH_PROT_IPV6) &&
236 (addr->proto == QETH_PROT_IPV6) &&
237 (tmp->type == addr->type) &&
238 (tmp->is_multicast == addr->is_multicast) &&
239 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
240 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
241 sizeof(struct in6_addr)) == 0)) {
247 if (addr->users != 0)
248 tmp->users += addr->users;
250 tmp->users += add ? 1 : -1;
251 if (tmp->users == 0) {
252 list_del(&tmp->entry);
257 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
258 list_add(&addr->entry, card->ip_tbd_list);
260 if (addr->users == 0)
261 addr->users += add ? 1 : -1;
262 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
263 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
264 QETH_CARD_TEXT(card, 2, "tkovaddr");
265 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
267 list_add_tail(&addr->entry, card->ip_tbd_list);
273 int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
278 QETH_CARD_TEXT(card, 4, "delip");
280 if (addr->proto == QETH_PROT_IPV4)
281 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
283 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
284 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
286 spin_lock_irqsave(&card->ip_lock, flags);
287 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
288 spin_unlock_irqrestore(&card->ip_lock, flags);
292 int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
297 QETH_CARD_TEXT(card, 4, "addip");
298 if (addr->proto == QETH_PROT_IPV4)
299 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
301 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
302 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
304 spin_lock_irqsave(&card->ip_lock, flags);
305 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
306 spin_unlock_irqrestore(&card->ip_lock, flags);
311 struct qeth_ipaddr *qeth_l3_get_addr_buffer(
312 enum qeth_prot_versions prot)
314 struct qeth_ipaddr *addr;
316 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
320 addr->type = QETH_IP_TYPE_NORMAL;
325 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
327 struct qeth_ipaddr *iptodo;
330 QETH_CARD_TEXT(card, 4, "delmc");
331 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
333 QETH_CARD_TEXT(card, 2, "dmcnomem");
336 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
337 spin_lock_irqsave(&card->ip_lock, flags);
338 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
340 spin_unlock_irqrestore(&card->ip_lock, flags);
344 * Add/remove address to/from card's ip list, i.e. try to add or remove
345 * reference to/from an IP address that is already registered on the card.
347 * 0 address was on card and its reference count has been adjusted,
348 * but is still > 0, so nothing has to be done
349 * also returns 0 if card was not on card and the todo was to delete
350 * the address -> there is also nothing to be done
351 * 1 address was not on card and the todo is to add it to the card's ip
353 * -1 address was on card and its reference count has been decremented
354 * to <= 0 by the todo -> address must be removed from card
356 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
357 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
359 struct qeth_ipaddr *addr;
362 list_for_each_entry(addr, &card->ip_list, entry) {
363 if ((addr->proto == QETH_PROT_IPV4) &&
364 (todo->proto == QETH_PROT_IPV4) &&
365 (addr->type == todo->type) &&
366 (addr->u.a4.addr == todo->u.a4.addr) &&
367 (addr->u.a4.mask == todo->u.a4.mask)) {
371 if ((addr->proto == QETH_PROT_IPV6) &&
372 (todo->proto == QETH_PROT_IPV6) &&
373 (addr->type == todo->type) &&
374 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
375 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
376 sizeof(struct in6_addr)) == 0)) {
382 addr->users += todo->users;
383 if (addr->users <= 0) {
387 /* for VIPA and RXIP limit refcount to 1 */
388 if (addr->type != QETH_IP_TYPE_NORMAL)
393 if (todo->users > 0) {
394 /* for VIPA and RXIP limit refcount to 1 */
395 if (todo->type != QETH_IP_TYPE_NORMAL)
402 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
403 unsigned long *flags)
405 struct list_head fail_list;
406 struct qeth_ipaddr *addr, *tmp;
409 INIT_LIST_HEAD(&fail_list);
411 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
412 if (addr->is_multicast) {
413 list_del(&addr->entry);
414 spin_unlock_irqrestore(&card->ip_lock, *flags);
415 rc = qeth_l3_deregister_addr_entry(card, addr);
416 spin_lock_irqsave(&card->ip_lock, *flags);
417 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
420 list_add_tail(&addr->entry, &fail_list);
424 list_splice(&fail_list, &card->ip_list);
427 void qeth_l3_set_ip_addr_list(struct qeth_card *card)
429 struct list_head *tbd_list;
430 struct qeth_ipaddr *todo, *addr;
434 QETH_CARD_TEXT(card, 2, "sdiplist");
435 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
437 if ((card->state != CARD_STATE_UP &&
438 card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
442 spin_lock_irqsave(&card->ip_lock, flags);
443 tbd_list = card->ip_tbd_list;
444 card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
445 if (!card->ip_tbd_list) {
446 QETH_CARD_TEXT(card, 0, "silnomem");
447 card->ip_tbd_list = tbd_list;
448 spin_unlock_irqrestore(&card->ip_lock, flags);
451 INIT_LIST_HEAD(card->ip_tbd_list);
453 while (!list_empty(tbd_list)) {
454 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
455 list_del(&todo->entry);
456 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
457 __qeth_l3_delete_all_mc(card, &flags);
461 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
463 /* nothing to be done; only adjusted refcount */
465 } else if (rc == 1) {
466 /* new entry to be added to on-card list */
467 spin_unlock_irqrestore(&card->ip_lock, flags);
468 rc = qeth_l3_register_addr_entry(card, todo);
469 spin_lock_irqsave(&card->ip_lock, flags);
470 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
471 list_add_tail(&todo->entry, &card->ip_list);
474 } else if (rc == -1) {
475 /* on-card entry to be removed */
476 list_del_init(&addr->entry);
477 spin_unlock_irqrestore(&card->ip_lock, flags);
478 rc = qeth_l3_deregister_addr_entry(card, addr);
479 spin_lock_irqsave(&card->ip_lock, flags);
480 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
483 list_add_tail(&addr->entry, &card->ip_list);
487 spin_unlock_irqrestore(&card->ip_lock, flags);
491 static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
493 struct qeth_ipaddr *addr, *tmp;
496 QETH_CARD_TEXT(card, 4, "clearip");
497 if (recover && card->options.sniffer)
499 spin_lock_irqsave(&card->ip_lock, flags);
500 /* clear todo list */
501 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
502 list_del(&addr->entry);
506 while (!list_empty(&card->ip_list)) {
507 addr = list_entry(card->ip_list.next,
508 struct qeth_ipaddr, entry);
509 list_del_init(&addr->entry);
510 if (!recover || addr->is_multicast) {
514 list_add_tail(&addr->entry, card->ip_tbd_list);
516 spin_unlock_irqrestore(&card->ip_lock, flags);
519 static int qeth_l3_address_exists_in_list(struct list_head *list,
520 struct qeth_ipaddr *addr, int same_type)
522 struct qeth_ipaddr *tmp;
524 list_for_each_entry(tmp, list, entry) {
525 if ((tmp->proto == QETH_PROT_IPV4) &&
526 (addr->proto == QETH_PROT_IPV4) &&
527 ((same_type && (tmp->type == addr->type)) ||
528 (!same_type && (tmp->type != addr->type))) &&
529 (tmp->u.a4.addr == addr->u.a4.addr))
532 if ((tmp->proto == QETH_PROT_IPV6) &&
533 (addr->proto == QETH_PROT_IPV6) &&
534 ((same_type && (tmp->type == addr->type)) ||
535 (!same_type && (tmp->type != addr->type))) &&
536 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
537 sizeof(struct in6_addr)) == 0))
544 static int qeth_l3_send_setdelmc(struct qeth_card *card,
545 struct qeth_ipaddr *addr, int ipacmd)
548 struct qeth_cmd_buffer *iob;
549 struct qeth_ipa_cmd *cmd;
551 QETH_CARD_TEXT(card, 4, "setdelmc");
553 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
554 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
555 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
556 if (addr->proto == QETH_PROT_IPV6)
557 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
558 sizeof(struct in6_addr));
560 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
562 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
567 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
570 for (i = 0; i < 16; i++) {
575 netmask[i] = (u8)(0xFF00 >> j);
581 static int qeth_l3_send_setdelip(struct qeth_card *card,
582 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
585 struct qeth_cmd_buffer *iob;
586 struct qeth_ipa_cmd *cmd;
589 QETH_CARD_TEXT(card, 4, "setdelip");
590 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
592 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
593 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
594 if (addr->proto == QETH_PROT_IPV6) {
595 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
596 sizeof(struct in6_addr));
597 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
598 memcpy(cmd->data.setdelip6.mask, netmask,
599 sizeof(struct in6_addr));
600 cmd->data.setdelip6.flags = flags;
602 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
603 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
604 cmd->data.setdelip4.flags = flags;
607 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
612 static int qeth_l3_send_setrouting(struct qeth_card *card,
613 enum qeth_routing_types type, enum qeth_prot_versions prot)
616 struct qeth_ipa_cmd *cmd;
617 struct qeth_cmd_buffer *iob;
619 QETH_CARD_TEXT(card, 4, "setroutg");
620 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
621 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
622 cmd->data.setrtg.type = (type);
623 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
628 static void qeth_l3_correct_routing_type(struct qeth_card *card,
629 enum qeth_routing_types *type, enum qeth_prot_versions prot)
631 if (card->info.type == QETH_CARD_TYPE_IQD) {
634 case PRIMARY_CONNECTOR:
635 case SECONDARY_CONNECTOR:
636 case MULTICAST_ROUTER:
645 case SECONDARY_ROUTER:
647 case MULTICAST_ROUTER:
648 if (qeth_is_ipafunc_supported(card, prot,
659 int qeth_l3_setrouting_v4(struct qeth_card *card)
663 QETH_CARD_TEXT(card, 3, "setrtg4");
665 qeth_l3_correct_routing_type(card, &card->options.route4.type,
668 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
671 card->options.route4.type = NO_ROUTER;
672 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
673 " on %s. Type set to 'no router'.\n", rc,
674 QETH_CARD_IFNAME(card));
679 int qeth_l3_setrouting_v6(struct qeth_card *card)
683 QETH_CARD_TEXT(card, 3, "setrtg6");
684 #ifdef CONFIG_QETH_IPV6
686 if (!qeth_is_supported(card, IPA_IPV6))
688 qeth_l3_correct_routing_type(card, &card->options.route6.type,
691 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
694 card->options.route6.type = NO_ROUTER;
695 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
696 " on %s. Type set to 'no router'.\n", rc,
697 QETH_CARD_IFNAME(card));
704 * IP address takeover related functions
706 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
709 struct qeth_ipato_entry *ipatoe, *tmp;
712 spin_lock_irqsave(&card->ip_lock, flags);
713 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
714 list_del(&ipatoe->entry);
717 spin_unlock_irqrestore(&card->ip_lock, flags);
720 int qeth_l3_add_ipato_entry(struct qeth_card *card,
721 struct qeth_ipato_entry *new)
723 struct qeth_ipato_entry *ipatoe;
727 QETH_CARD_TEXT(card, 2, "addipato");
728 spin_lock_irqsave(&card->ip_lock, flags);
729 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
730 if (ipatoe->proto != new->proto)
732 if (!memcmp(ipatoe->addr, new->addr,
733 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
734 (ipatoe->mask_bits == new->mask_bits)) {
740 list_add_tail(&new->entry, &card->ipato.entries);
742 spin_unlock_irqrestore(&card->ip_lock, flags);
746 void qeth_l3_del_ipato_entry(struct qeth_card *card,
747 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
749 struct qeth_ipato_entry *ipatoe, *tmp;
752 QETH_CARD_TEXT(card, 2, "delipato");
753 spin_lock_irqsave(&card->ip_lock, flags);
754 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
755 if (ipatoe->proto != proto)
757 if (!memcmp(ipatoe->addr, addr,
758 (proto == QETH_PROT_IPV4)? 4:16) &&
759 (ipatoe->mask_bits == mask_bits)) {
760 list_del(&ipatoe->entry);
764 spin_unlock_irqrestore(&card->ip_lock, flags);
768 * VIPA related functions
770 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
773 struct qeth_ipaddr *ipaddr;
777 ipaddr = qeth_l3_get_addr_buffer(proto);
779 if (proto == QETH_PROT_IPV4) {
780 QETH_CARD_TEXT(card, 2, "addvipa4");
781 memcpy(&ipaddr->u.a4.addr, addr, 4);
782 ipaddr->u.a4.mask = 0;
783 } else if (proto == QETH_PROT_IPV6) {
784 QETH_CARD_TEXT(card, 2, "addvipa6");
785 memcpy(&ipaddr->u.a6.addr, addr, 16);
786 ipaddr->u.a6.pfxlen = 0;
788 ipaddr->type = QETH_IP_TYPE_VIPA;
789 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
790 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
793 spin_lock_irqsave(&card->ip_lock, flags);
794 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
795 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
797 spin_unlock_irqrestore(&card->ip_lock, flags);
801 if (!qeth_l3_add_ip(card, ipaddr))
803 qeth_l3_set_ip_addr_list(card);
807 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
810 struct qeth_ipaddr *ipaddr;
812 ipaddr = qeth_l3_get_addr_buffer(proto);
814 if (proto == QETH_PROT_IPV4) {
815 QETH_CARD_TEXT(card, 2, "delvipa4");
816 memcpy(&ipaddr->u.a4.addr, addr, 4);
817 ipaddr->u.a4.mask = 0;
818 } else if (proto == QETH_PROT_IPV6) {
819 QETH_CARD_TEXT(card, 2, "delvipa6");
820 memcpy(&ipaddr->u.a6.addr, addr, 16);
821 ipaddr->u.a6.pfxlen = 0;
823 ipaddr->type = QETH_IP_TYPE_VIPA;
826 if (!qeth_l3_delete_ip(card, ipaddr))
828 qeth_l3_set_ip_addr_list(card);
832 * proxy ARP related functions
834 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
837 struct qeth_ipaddr *ipaddr;
841 ipaddr = qeth_l3_get_addr_buffer(proto);
843 if (proto == QETH_PROT_IPV4) {
844 QETH_CARD_TEXT(card, 2, "addrxip4");
845 memcpy(&ipaddr->u.a4.addr, addr, 4);
846 ipaddr->u.a4.mask = 0;
847 } else if (proto == QETH_PROT_IPV6) {
848 QETH_CARD_TEXT(card, 2, "addrxip6");
849 memcpy(&ipaddr->u.a6.addr, addr, 16);
850 ipaddr->u.a6.pfxlen = 0;
852 ipaddr->type = QETH_IP_TYPE_RXIP;
853 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
854 ipaddr->del_flags = 0;
857 spin_lock_irqsave(&card->ip_lock, flags);
858 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
859 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
861 spin_unlock_irqrestore(&card->ip_lock, flags);
865 if (!qeth_l3_add_ip(card, ipaddr))
867 qeth_l3_set_ip_addr_list(card);
871 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
874 struct qeth_ipaddr *ipaddr;
876 ipaddr = qeth_l3_get_addr_buffer(proto);
878 if (proto == QETH_PROT_IPV4) {
879 QETH_CARD_TEXT(card, 2, "addrxip4");
880 memcpy(&ipaddr->u.a4.addr, addr, 4);
881 ipaddr->u.a4.mask = 0;
882 } else if (proto == QETH_PROT_IPV6) {
883 QETH_CARD_TEXT(card, 2, "addrxip6");
884 memcpy(&ipaddr->u.a6.addr, addr, 16);
885 ipaddr->u.a6.pfxlen = 0;
887 ipaddr->type = QETH_IP_TYPE_RXIP;
890 if (!qeth_l3_delete_ip(card, ipaddr))
892 qeth_l3_set_ip_addr_list(card);
895 static int qeth_l3_register_addr_entry(struct qeth_card *card,
896 struct qeth_ipaddr *addr)
902 if (addr->proto == QETH_PROT_IPV4) {
903 QETH_CARD_TEXT(card, 2, "setaddr4");
904 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
905 } else if (addr->proto == QETH_PROT_IPV6) {
906 QETH_CARD_TEXT(card, 2, "setaddr6");
907 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
908 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
910 QETH_CARD_TEXT(card, 2, "setaddr?");
911 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
914 if (addr->is_multicast)
915 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
917 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
920 QETH_CARD_TEXT(card, 2, "failed");
921 } while ((--cnt > 0) && rc);
923 QETH_CARD_TEXT(card, 2, "FAILED");
924 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
925 dev_warn(&card->gdev->dev,
926 "Registering IP address %s failed\n", buf);
931 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
932 struct qeth_ipaddr *addr)
936 if (addr->proto == QETH_PROT_IPV4) {
937 QETH_CARD_TEXT(card, 2, "deladdr4");
938 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
939 } else if (addr->proto == QETH_PROT_IPV6) {
940 QETH_CARD_TEXT(card, 2, "deladdr6");
941 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
942 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
944 QETH_CARD_TEXT(card, 2, "deladdr?");
945 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
947 if (addr->is_multicast)
948 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
950 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
953 QETH_CARD_TEXT(card, 2, "failed");
958 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
960 if (cast_type == RTN_MULTICAST)
961 return QETH_CAST_MULTICAST;
962 if (cast_type == RTN_BROADCAST)
963 return QETH_CAST_BROADCAST;
964 return QETH_CAST_UNICAST;
967 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
969 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
970 if (cast_type == RTN_MULTICAST)
971 return ct | QETH_CAST_MULTICAST;
972 if (cast_type == RTN_ANYCAST)
973 return ct | QETH_CAST_ANYCAST;
974 if (cast_type == RTN_BROADCAST)
975 return ct | QETH_CAST_BROADCAST;
976 return ct | QETH_CAST_UNICAST;
979 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
983 struct qeth_cmd_buffer *iob;
984 struct qeth_ipa_cmd *cmd;
986 QETH_CARD_TEXT(card, 4, "adpmode");
988 iob = qeth_get_adapter_cmd(card, command,
989 sizeof(struct qeth_ipacmd_setadpparms));
990 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
991 cmd->data.setadapterparms.data.mode = mode;
992 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
997 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1001 QETH_CARD_TEXT(card, 4, "adphstr");
1003 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1004 rc = qeth_l3_send_setadp_mode(card,
1005 IPA_SETADP_SET_BROADCAST_MODE,
1006 card->options.broadcast_mode);
1008 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1010 CARD_BUS_ID(card), rc);
1011 rc = qeth_l3_send_setadp_mode(card,
1012 IPA_SETADP_ALTER_MAC_ADDRESS,
1013 card->options.macaddr_mode);
1015 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1016 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1019 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1020 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1021 "to set broadcast mode, using ALLRINGS "
1022 "on device %s:\n", CARD_BUS_ID(card));
1023 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1024 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1025 "to set macaddr mode, using NONCANONICAL "
1026 "on device %s:\n", CARD_BUS_ID(card));
1030 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1034 QETH_DBF_TEXT(SETUP, 2, "setadprm");
1036 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1037 dev_info(&card->gdev->dev,
1038 "set adapter parameters not supported.\n");
1039 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1042 rc = qeth_query_setadapterparms(card);
1044 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1045 "0x%x\n", dev_name(&card->gdev->dev), rc);
1048 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1049 rc = qeth_setadpparms_change_macaddr(card);
1051 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1052 " address failed\n");
1055 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1056 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1057 rc = qeth_l3_setadapter_hstr(card);
1062 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1063 struct qeth_reply *reply, unsigned long data)
1065 struct qeth_ipa_cmd *cmd;
1067 QETH_CARD_TEXT(card, 4, "defadpcb");
1069 cmd = (struct qeth_ipa_cmd *) data;
1070 if (cmd->hdr.return_code == 0) {
1071 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1072 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1073 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1074 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1075 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1077 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1078 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1079 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1080 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1082 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1083 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1084 card->info.tx_csum_mask =
1085 cmd->data.setassparms.data.flags_32bit;
1086 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1092 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1093 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1094 __u16 len, enum qeth_prot_versions prot)
1096 struct qeth_cmd_buffer *iob;
1097 struct qeth_ipa_cmd *cmd;
1099 QETH_CARD_TEXT(card, 4, "getasscm");
1100 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1102 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1103 cmd->data.setassparms.hdr.assist_no = ipa_func;
1104 cmd->data.setassparms.hdr.length = 8 + len;
1105 cmd->data.setassparms.hdr.command_code = cmd_code;
1106 cmd->data.setassparms.hdr.return_code = 0;
1107 cmd->data.setassparms.hdr.seq_no = 0;
1112 static int qeth_l3_send_setassparms(struct qeth_card *card,
1113 struct qeth_cmd_buffer *iob, __u16 len, long data,
1114 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1119 struct qeth_ipa_cmd *cmd;
1121 QETH_CARD_TEXT(card, 4, "sendassp");
1123 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1124 if (len <= sizeof(__u32))
1125 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1126 else /* (len > sizeof(__u32)) */
1127 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1129 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1133 #ifdef CONFIG_QETH_IPV6
1134 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1135 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1138 struct qeth_cmd_buffer *iob;
1140 QETH_CARD_TEXT(card, 4, "simassp6");
1141 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1143 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1144 qeth_l3_default_setassparms_cb, NULL);
1149 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1150 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1154 struct qeth_cmd_buffer *iob;
1156 QETH_CARD_TEXT(card, 4, "simassp4");
1158 length = sizeof(__u32);
1159 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1160 length, QETH_PROT_IPV4);
1161 rc = qeth_l3_send_setassparms(card, iob, length, data,
1162 qeth_l3_default_setassparms_cb, NULL);
1166 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1170 QETH_CARD_TEXT(card, 3, "ipaarp");
1172 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1173 dev_info(&card->gdev->dev,
1174 "ARP processing not supported on %s!\n",
1175 QETH_CARD_IFNAME(card));
1178 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1179 IPA_CMD_ASS_START, 0);
1181 dev_warn(&card->gdev->dev,
1182 "Starting ARP processing support for %s failed\n",
1183 QETH_CARD_IFNAME(card));
1188 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1192 QETH_CARD_TEXT(card, 3, "ipaipfrg");
1194 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1195 dev_info(&card->gdev->dev,
1196 "Hardware IP fragmentation not supported on %s\n",
1197 QETH_CARD_IFNAME(card));
1201 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1202 IPA_CMD_ASS_START, 0);
1204 dev_warn(&card->gdev->dev,
1205 "Starting IP fragmentation support for %s failed\n",
1206 QETH_CARD_IFNAME(card));
1208 dev_info(&card->gdev->dev,
1209 "Hardware IP fragmentation enabled \n");
1213 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1217 QETH_CARD_TEXT(card, 3, "stsrcmac");
1219 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1220 dev_info(&card->gdev->dev,
1221 "Inbound source MAC-address not supported on %s\n",
1222 QETH_CARD_IFNAME(card));
1226 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1227 IPA_CMD_ASS_START, 0);
1229 dev_warn(&card->gdev->dev,
1230 "Starting source MAC-address support for %s failed\n",
1231 QETH_CARD_IFNAME(card));
1235 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1239 QETH_CARD_TEXT(card, 3, "strtvlan");
1241 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1242 dev_info(&card->gdev->dev,
1243 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1247 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1248 IPA_CMD_ASS_START, 0);
1250 dev_warn(&card->gdev->dev,
1251 "Starting VLAN support for %s failed\n",
1252 QETH_CARD_IFNAME(card));
1254 dev_info(&card->gdev->dev, "VLAN enabled\n");
1259 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1263 QETH_CARD_TEXT(card, 3, "stmcast");
1265 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1266 dev_info(&card->gdev->dev,
1267 "Multicast not supported on %s\n",
1268 QETH_CARD_IFNAME(card));
1272 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1273 IPA_CMD_ASS_START, 0);
1275 dev_warn(&card->gdev->dev,
1276 "Starting multicast support for %s failed\n",
1277 QETH_CARD_IFNAME(card));
1279 dev_info(&card->gdev->dev, "Multicast enabled\n");
1280 card->dev->flags |= IFF_MULTICAST;
1285 #ifdef CONFIG_QETH_IPV6
1286 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1290 QETH_CARD_TEXT(card, 3, "softipv6");
1292 if (card->info.type == QETH_CARD_TYPE_IQD)
1295 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1297 dev_err(&card->gdev->dev,
1298 "Activating IPv6 support for %s failed\n",
1299 QETH_CARD_IFNAME(card));
1302 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1303 IPA_CMD_ASS_START, 3);
1305 dev_err(&card->gdev->dev,
1306 "Activating IPv6 support for %s failed\n",
1307 QETH_CARD_IFNAME(card));
1310 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1313 dev_err(&card->gdev->dev,
1314 "Activating IPv6 support for %s failed\n",
1315 QETH_CARD_IFNAME(card));
1318 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1321 dev_warn(&card->gdev->dev,
1322 "Enabling the passthrough mode for %s failed\n",
1323 QETH_CARD_IFNAME(card));
1327 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1332 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1336 QETH_CARD_TEXT(card, 3, "strtipv6");
1338 if (!qeth_is_supported(card, IPA_IPV6)) {
1339 dev_info(&card->gdev->dev,
1340 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1343 #ifdef CONFIG_QETH_IPV6
1344 rc = qeth_l3_softsetup_ipv6(card);
1349 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1353 QETH_CARD_TEXT(card, 3, "stbrdcst");
1354 card->info.broadcast_capable = 0;
1355 if (!qeth_is_supported(card, IPA_FILTERING)) {
1356 dev_info(&card->gdev->dev,
1357 "Broadcast not supported on %s\n",
1358 QETH_CARD_IFNAME(card));
1362 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1363 IPA_CMD_ASS_START, 0);
1365 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1366 "%s failed\n", QETH_CARD_IFNAME(card));
1370 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1371 IPA_CMD_ASS_CONFIGURE, 1);
1373 dev_warn(&card->gdev->dev,
1374 "Setting up broadcast filtering for %s failed\n",
1375 QETH_CARD_IFNAME(card));
1378 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1379 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1380 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1381 IPA_CMD_ASS_ENABLE, 1);
1383 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1384 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1387 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1389 if (card->info.broadcast_capable)
1390 card->dev->flags |= IFF_BROADCAST;
1392 card->dev->flags &= ~IFF_BROADCAST;
1396 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1400 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1401 IPA_CMD_ASS_START, 0);
1403 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1404 "failed, using SW checksumming\n",
1405 QETH_CARD_IFNAME(card));
1408 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1410 card->info.csum_mask);
1412 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1413 "failed, using SW checksumming\n",
1414 QETH_CARD_IFNAME(card));
1420 static int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
1425 rc = qeth_l3_send_checksum_command(card);
1428 dev_info(&card->gdev->dev,
1429 "HW Checksumming (inbound) enabled\n");
1431 rc = qeth_l3_send_simple_setassparms(card,
1432 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1440 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1442 QETH_CARD_TEXT(card, 3, "strtcsum");
1444 if (card->dev->features & NETIF_F_RXCSUM) {
1446 /* force set_features call */
1447 card->dev->features &= ~NETIF_F_RXCSUM;
1448 netdev_update_features(card->dev);
1454 static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1458 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1460 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1461 IPA_CMD_ASS_START, 0);
1464 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1465 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1468 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1471 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1472 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1476 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1480 QETH_CARD_TEXT(card, 3, "sttso");
1482 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1483 dev_info(&card->gdev->dev,
1484 "Outbound TSO not supported on %s\n",
1485 QETH_CARD_IFNAME(card));
1488 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1489 IPA_CMD_ASS_START, 0);
1491 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1492 "segmentation offload for %s failed\n",
1493 QETH_CARD_IFNAME(card));
1495 dev_info(&card->gdev->dev,
1496 "Outbound TSO enabled\n");
1499 card->dev->features &= ~NETIF_F_TSO;
1503 static int qeth_l3_start_ipassists(struct qeth_card *card)
1505 QETH_CARD_TEXT(card, 3, "strtipas");
1507 qeth_set_access_ctrl_online(card); /* go on*/
1508 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1509 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1510 qeth_l3_start_ipa_source_mac(card); /* go on*/
1511 qeth_l3_start_ipa_vlan(card); /* go on*/
1512 qeth_l3_start_ipa_multicast(card); /* go on*/
1513 qeth_l3_start_ipa_ipv6(card); /* go on*/
1514 qeth_l3_start_ipa_broadcast(card); /* go on*/
1515 qeth_l3_start_ipa_checksum(card); /* go on*/
1516 qeth_l3_start_ipa_tx_checksum(card);
1517 qeth_l3_start_ipa_tso(card); /* go on*/
1521 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1522 struct qeth_reply *reply, unsigned long data)
1524 struct qeth_ipa_cmd *cmd;
1526 cmd = (struct qeth_ipa_cmd *) data;
1527 if (cmd->hdr.return_code == 0)
1528 memcpy(card->dev->dev_addr,
1529 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1531 random_ether_addr(card->dev->dev_addr);
1536 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1539 struct qeth_cmd_buffer *iob;
1540 struct qeth_ipa_cmd *cmd;
1542 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1544 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1546 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1547 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1548 card->info.unique_id;
1550 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1555 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1556 struct qeth_reply *reply, unsigned long data)
1558 struct qeth_ipa_cmd *cmd;
1560 cmd = (struct qeth_ipa_cmd *) data;
1561 if (cmd->hdr.return_code == 0)
1562 card->info.unique_id = *((__u16 *)
1563 &cmd->data.create_destroy_addr.unique_id[6]);
1565 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1566 UNIQUE_ID_NOT_BY_CARD;
1567 dev_warn(&card->gdev->dev, "The network adapter failed to "
1568 "generate a unique ID\n");
1573 static int qeth_l3_get_unique_id(struct qeth_card *card)
1576 struct qeth_cmd_buffer *iob;
1577 struct qeth_ipa_cmd *cmd;
1579 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1581 if (!qeth_is_supported(card, IPA_IPV6)) {
1582 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1583 UNIQUE_ID_NOT_BY_CARD;
1587 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1589 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1590 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1591 card->info.unique_id;
1593 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1598 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1601 struct qeth_ipa_cmd *cmd;
1604 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1606 cmd = (struct qeth_ipa_cmd *)data;
1607 rc = cmd->hdr.return_code;
1609 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1610 switch (cmd->data.diagass.action) {
1611 case QETH_DIAGS_CMD_TRACE_QUERY:
1613 case QETH_DIAGS_CMD_TRACE_DISABLE:
1616 case IPA_RC_INVALID_SUBCMD:
1617 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1618 dev_info(&card->gdev->dev, "The HiperSockets network "
1619 "traffic analyzer is deactivated\n");
1625 case QETH_DIAGS_CMD_TRACE_ENABLE:
1628 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1629 dev_info(&card->gdev->dev, "The HiperSockets network "
1630 "traffic analyzer is activated\n");
1632 case IPA_RC_HARDWARE_AUTH_ERROR:
1633 dev_warn(&card->gdev->dev, "The device is not "
1634 "authorized to run as a HiperSockets network "
1635 "traffic analyzer\n");
1637 case IPA_RC_TRACE_ALREADY_ACTIVE:
1638 dev_warn(&card->gdev->dev, "A HiperSockets "
1639 "network traffic analyzer is already "
1640 "active in the HiperSockets LAN\n");
1647 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1648 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1655 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1657 struct qeth_cmd_buffer *iob;
1658 struct qeth_ipa_cmd *cmd;
1660 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1662 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1663 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1664 cmd->data.diagass.subcmd_len = 16;
1665 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1666 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1667 cmd->data.diagass.action = diags_cmd;
1668 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1671 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1672 struct net_device *dev)
1674 if (dev->type == ARPHRD_IEEE802_TR)
1675 ip_tr_mc_map(ipm, mac);
1677 ip_eth_mc_map(ipm, mac);
1680 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1682 struct qeth_ipaddr *ipm;
1683 struct ip_mc_list *im4;
1684 char buf[MAX_ADDR_LEN];
1686 QETH_CARD_TEXT(card, 4, "addmc");
1687 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1688 im4 = rcu_dereference(im4->next_rcu)) {
1689 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1690 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1693 ipm->u.a4.addr = im4->multiaddr;
1694 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1695 ipm->is_multicast = 1;
1696 if (!qeth_l3_add_ip(card, ipm))
1701 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1703 struct in_device *in_dev;
1706 QETH_CARD_TEXT(card, 4, "addmcvl");
1707 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1710 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1711 struct net_device *netdev;
1714 netdev = __vlan_find_dev_deep(card->dev, vid);
1716 if (netdev == NULL ||
1717 !(netdev->flags & IFF_UP))
1719 in_dev = in_dev_get(netdev);
1723 qeth_l3_add_mc(card, in_dev);
1729 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1731 struct in_device *in4_dev;
1733 QETH_CARD_TEXT(card, 4, "chkmcv4");
1734 in4_dev = in_dev_get(card->dev);
1735 if (in4_dev == NULL)
1738 qeth_l3_add_mc(card, in4_dev);
1739 qeth_l3_add_vlan_mc(card);
1741 in_dev_put(in4_dev);
1744 #ifdef CONFIG_QETH_IPV6
1745 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1747 struct qeth_ipaddr *ipm;
1748 struct ifmcaddr6 *im6;
1749 char buf[MAX_ADDR_LEN];
1751 QETH_CARD_TEXT(card, 4, "addmc6");
1752 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1753 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1754 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1757 ipm->is_multicast = 1;
1758 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1759 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1760 sizeof(struct in6_addr));
1761 if (!qeth_l3_add_ip(card, ipm))
1766 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1768 struct inet6_dev *in_dev;
1771 QETH_CARD_TEXT(card, 4, "admc6vl");
1772 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1775 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1776 struct net_device *netdev;
1778 netdev = __vlan_find_dev_deep(card->dev, vid);
1779 if (netdev == NULL ||
1780 !(netdev->flags & IFF_UP))
1782 in_dev = in6_dev_get(netdev);
1785 read_lock_bh(&in_dev->lock);
1786 qeth_l3_add_mc6(card, in_dev);
1787 read_unlock_bh(&in_dev->lock);
1788 in6_dev_put(in_dev);
1792 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1794 struct inet6_dev *in6_dev;
1796 QETH_CARD_TEXT(card, 4, "chkmcv6");
1797 if (!qeth_is_supported(card, IPA_IPV6))
1799 in6_dev = in6_dev_get(card->dev);
1800 if (in6_dev == NULL)
1802 read_lock_bh(&in6_dev->lock);
1803 qeth_l3_add_mc6(card, in6_dev);
1804 qeth_l3_add_vlan_mc6(card);
1805 read_unlock_bh(&in6_dev->lock);
1806 in6_dev_put(in6_dev);
1808 #endif /* CONFIG_QETH_IPV6 */
1810 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1813 struct in_device *in_dev;
1814 struct in_ifaddr *ifa;
1815 struct qeth_ipaddr *addr;
1816 struct net_device *netdev;
1818 QETH_CARD_TEXT(card, 4, "frvaddr4");
1820 netdev = __vlan_find_dev_deep(card->dev, vid);
1821 in_dev = in_dev_get(netdev);
1824 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1825 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1827 addr->u.a4.addr = ifa->ifa_address;
1828 addr->u.a4.mask = ifa->ifa_mask;
1829 addr->type = QETH_IP_TYPE_NORMAL;
1830 if (!qeth_l3_delete_ip(card, addr))
1837 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1840 #ifdef CONFIG_QETH_IPV6
1841 struct inet6_dev *in6_dev;
1842 struct inet6_ifaddr *ifa;
1843 struct qeth_ipaddr *addr;
1844 struct net_device *netdev;
1846 QETH_CARD_TEXT(card, 4, "frvaddr6");
1848 netdev = __vlan_find_dev_deep(card->dev, vid);
1849 in6_dev = in6_dev_get(netdev);
1852 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1853 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1855 memcpy(&addr->u.a6.addr, &ifa->addr,
1856 sizeof(struct in6_addr));
1857 addr->u.a6.pfxlen = ifa->prefix_len;
1858 addr->type = QETH_IP_TYPE_NORMAL;
1859 if (!qeth_l3_delete_ip(card, addr))
1863 in6_dev_put(in6_dev);
1864 #endif /* CONFIG_QETH_IPV6 */
1867 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1870 qeth_l3_free_vlan_addresses4(card, vid);
1871 qeth_l3_free_vlan_addresses6(card, vid);
1874 static int qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1876 struct qeth_card *card = dev->ml_priv;
1878 set_bit(vid, card->active_vlans);
1882 static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1884 struct qeth_card *card = dev->ml_priv;
1885 unsigned long flags;
1887 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1888 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1889 QETH_CARD_TEXT(card, 3, "kidREC");
1892 spin_lock_irqsave(&card->vlanlock, flags);
1893 /* unregister IP addresses of vlan device */
1894 qeth_l3_free_vlan_addresses(card, vid);
1895 clear_bit(vid, card->active_vlans);
1896 spin_unlock_irqrestore(&card->vlanlock, flags);
1897 qeth_l3_set_multicast_list(card->dev);
1901 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1902 struct sk_buff *skb, struct qeth_hdr *hdr,
1903 unsigned short *vlan_id)
1906 struct iphdr *ip_hdr;
1907 unsigned char tg_addr[MAX_ADDR_LEN];
1910 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1911 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1913 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1914 case QETH_CAST_MULTICAST:
1916 #ifdef CONFIG_QETH_IPV6
1917 case __constant_htons(ETH_P_IPV6):
1918 ndisc_mc_map((struct in6_addr *)
1920 tg_addr, card->dev, 0);
1923 case __constant_htons(ETH_P_IP):
1924 ip_hdr = (struct iphdr *)skb->data;
1925 (card->dev->type == ARPHRD_IEEE802_TR) ?
1926 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
1927 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1930 memcpy(tg_addr, card->dev->broadcast,
1931 card->dev->addr_len);
1933 card->stats.multicast++;
1934 skb->pkt_type = PACKET_MULTICAST;
1936 case QETH_CAST_BROADCAST:
1937 memcpy(tg_addr, card->dev->broadcast,
1938 card->dev->addr_len);
1939 card->stats.multicast++;
1940 skb->pkt_type = PACKET_BROADCAST;
1942 case QETH_CAST_UNICAST:
1943 case QETH_CAST_ANYCAST:
1944 case QETH_CAST_NOCAST:
1946 if (card->options.sniffer)
1947 skb->pkt_type = PACKET_OTHERHOST;
1949 skb->pkt_type = PACKET_HOST;
1950 memcpy(tg_addr, card->dev->dev_addr,
1951 card->dev->addr_len);
1953 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1954 card->dev->header_ops->create(skb, card->dev, prot,
1955 tg_addr, &hdr->hdr.l3.dest_addr[2],
1956 card->dev->addr_len);
1958 card->dev->header_ops->create(skb, card->dev, prot,
1959 tg_addr, "FAKELL", card->dev->addr_len);
1963 if (card->dev->type == ARPHRD_IEEE802_TR)
1964 skb->protocol = tr_type_trans(skb, card->dev);
1967 skb->protocol = eth_type_trans(skb, card->dev);
1969 if (hdr->hdr.l3.ext_flags &
1970 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1971 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
1972 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1976 if (card->dev->features & NETIF_F_RXCSUM) {
1977 if ((hdr->hdr.l3.ext_flags &
1978 (QETH_HDR_EXT_CSUM_HDR_REQ |
1979 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1980 (QETH_HDR_EXT_CSUM_HDR_REQ |
1981 QETH_HDR_EXT_CSUM_TRANSP_REQ))
1982 skb->ip_summed = CHECKSUM_UNNECESSARY;
1984 skb->ip_summed = CHECKSUM_NONE;
1986 skb->ip_summed = CHECKSUM_NONE;
1991 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1992 int budget, int *done)
1995 struct sk_buff *skb;
1996 struct qeth_hdr *hdr;
2005 skb = qeth_core_get_next_skb(card,
2006 &card->qdio.in_q->bufs[card->rx.b_index],
2007 &card->rx.b_element, &card->rx.e_offset, &hdr);
2012 skb->dev = card->dev;
2013 switch (hdr->hdr.l3.id) {
2014 case QETH_HEADER_TYPE_LAYER3:
2015 magic = *(__u16 *)skb->data;
2016 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2017 (magic == ETH_P_AF_IUCV)) {
2018 skb->protocol = ETH_P_AF_IUCV;
2019 skb->pkt_type = PACKET_HOST;
2020 skb->mac_header = NET_SKB_PAD;
2021 skb->dev = card->dev;
2023 card->dev->header_ops->create(skb, card->dev, 0,
2024 card->dev->dev_addr, "FAKELL",
2025 card->dev->addr_len);
2026 netif_receive_skb(skb);
2028 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
2031 if (is_vlan && !card->options.sniffer)
2032 __vlan_hwaccel_put_tag(skb, vlan_tag);
2033 napi_gro_receive(&card->napi, skb);
2036 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2037 skb->pkt_type = PACKET_HOST;
2038 skb->protocol = eth_type_trans(skb, skb->dev);
2040 netif_receive_skb(skb);
2043 dev_kfree_skb_any(skb);
2044 QETH_CARD_TEXT(card, 3, "inbunkno");
2045 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2050 card->stats.rx_packets++;
2051 card->stats.rx_bytes += len;
2056 static int qeth_l3_poll(struct napi_struct *napi, int budget)
2058 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2060 struct qeth_qdio_buffer *buffer;
2062 int new_budget = budget;
2064 if (card->options.performance_stats) {
2065 card->perf_stats.inbound_cnt++;
2066 card->perf_stats.inbound_start_time = qeth_get_micros();
2070 if (!card->rx.b_count) {
2071 card->rx.qdio_err = 0;
2072 card->rx.b_count = qdio_get_next_buffers(
2073 card->data.ccwdev, 0, &card->rx.b_index,
2074 &card->rx.qdio_err);
2075 if (card->rx.b_count <= 0) {
2076 card->rx.b_count = 0;
2079 card->rx.b_element =
2080 &card->qdio.in_q->bufs[card->rx.b_index]
2081 .buffer->element[0];
2082 card->rx.e_offset = 0;
2085 while (card->rx.b_count) {
2086 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2087 if (!(card->rx.qdio_err &&
2088 qeth_check_qdio_errors(card, buffer->buffer,
2089 card->rx.qdio_err, "qinerr")))
2090 work_done += qeth_l3_process_inbound_buffer(
2091 card, new_budget, &done);
2096 if (card->options.performance_stats)
2097 card->perf_stats.bufs_rec++;
2098 qeth_put_buffer_pool_entry(card,
2099 buffer->pool_entry);
2100 qeth_queue_input_buffer(card, card->rx.b_index);
2102 if (card->rx.b_count) {
2104 (card->rx.b_index + 1) %
2105 QDIO_MAX_BUFFERS_PER_Q;
2106 card->rx.b_element =
2108 ->bufs[card->rx.b_index]
2109 .buffer->element[0];
2110 card->rx.e_offset = 0;
2114 if (work_done >= budget)
2117 new_budget = budget - work_done;
2121 napi_complete(napi);
2122 if (qdio_start_irq(card->data.ccwdev, 0))
2123 napi_schedule(&card->napi);
2125 if (card->options.performance_stats)
2126 card->perf_stats.inbound_time += qeth_get_micros() -
2127 card->perf_stats.inbound_start_time;
2131 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2132 struct qeth_card *card)
2137 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
2138 struct net_device *netdev;
2141 netdev = __vlan_find_dev_deep(dev, vid);
2143 if (netdev == dev) {
2144 rc = QETH_VLAN_CARD;
2149 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2155 static int qeth_l3_verify_dev(struct net_device *dev)
2157 struct qeth_card *card;
2158 unsigned long flags;
2161 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2162 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2163 if (card->dev == dev) {
2164 rc = QETH_REAL_CARD;
2167 rc = qeth_l3_verify_vlan_dev(dev, card);
2171 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2176 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2178 struct qeth_card *card = NULL;
2181 rc = qeth_l3_verify_dev(dev);
2182 if (rc == QETH_REAL_CARD)
2183 card = dev->ml_priv;
2184 else if (rc == QETH_VLAN_CARD)
2185 card = vlan_dev_real_dev(dev)->ml_priv;
2186 if (card && card->options.layer2)
2189 QETH_CARD_TEXT_(card, 4, "%d", rc);
2193 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2197 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2198 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2200 qeth_set_allowed_threads(card, 0, 1);
2201 if (card->options.sniffer &&
2202 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2203 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2204 if (card->read.state == CH_STATE_UP &&
2205 card->write.state == CH_STATE_UP &&
2206 (card->state == CARD_STATE_UP)) {
2208 qeth_l3_stop(card->dev);
2211 dev_close(card->dev);
2214 card->state = CARD_STATE_SOFTSETUP;
2216 if (card->state == CARD_STATE_SOFTSETUP) {
2217 qeth_l3_clear_ip_list(card, 1);
2218 qeth_clear_ipacmd_list(card);
2219 card->state = CARD_STATE_HARDSETUP;
2221 if (card->state == CARD_STATE_HARDSETUP) {
2222 qeth_qdio_clear_card(card, 0);
2223 qeth_clear_qdio_buffers(card);
2224 qeth_clear_working_pool_list(card);
2225 card->state = CARD_STATE_DOWN;
2227 if (card->state == CARD_STATE_DOWN) {
2228 qeth_clear_cmd_buffers(&card->read);
2229 qeth_clear_cmd_buffers(&card->write);
2235 * test for and Switch promiscuous mode (on or off)
2236 * either for guestlan or HiperSocket Sniffer
2239 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2241 struct net_device *dev = card->dev;
2243 if (((dev->flags & IFF_PROMISC) &&
2244 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2245 (!(dev->flags & IFF_PROMISC) &&
2246 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2249 if (card->info.guestlan) { /* Guestlan trace */
2250 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2251 qeth_setadp_promisc_mode(card);
2252 } else if (card->options.sniffer && /* HiperSockets trace */
2253 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2254 if (dev->flags & IFF_PROMISC) {
2255 QETH_CARD_TEXT(card, 3, "+promisc");
2256 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2258 QETH_CARD_TEXT(card, 3, "-promisc");
2259 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2264 static void qeth_l3_set_multicast_list(struct net_device *dev)
2266 struct qeth_card *card = dev->ml_priv;
2268 QETH_CARD_TEXT(card, 3, "setmulti");
2269 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2270 (card->state != CARD_STATE_UP))
2272 if (!card->options.sniffer) {
2273 qeth_l3_delete_mc_addresses(card);
2274 qeth_l3_add_multicast_ipv4(card);
2275 #ifdef CONFIG_QETH_IPV6
2276 qeth_l3_add_multicast_ipv6(card);
2278 qeth_l3_set_ip_addr_list(card);
2279 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2282 qeth_l3_handle_promisc_mode(card);
2285 static const char *qeth_l3_arp_get_error_cause(int *rc)
2288 case QETH_IPA_ARP_RC_FAILED:
2290 return "operation failed";
2291 case QETH_IPA_ARP_RC_NOTSUPP:
2293 return "operation not supported";
2294 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2296 return "argument out of range";
2297 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2299 return "query operation not supported";
2300 case QETH_IPA_ARP_RC_Q_NO_DATA:
2302 return "no query data available";
2304 return "unknown error";
2308 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2313 QETH_CARD_TEXT(card, 3, "arpstnoe");
2316 * currently GuestLAN only supports the ARP assist function
2317 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2318 * thus we say EOPNOTSUPP for this ARP function
2320 if (card->info.guestlan)
2322 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2325 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2326 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2330 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2331 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2332 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2337 static __u32 get_arp_entry_size(struct qeth_card *card,
2338 struct qeth_arp_query_data *qdata,
2339 struct qeth_arp_entrytype *type, __u8 strip_entries)
2344 is_hsi = qdata->reply_bits == 5;
2345 if (type->ip == QETHARP_IP_ADDR_V4) {
2346 QETH_CARD_TEXT(card, 4, "arpev4");
2347 if (strip_entries) {
2348 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2349 sizeof(struct qeth_arp_qi_entry7_short);
2351 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2352 sizeof(struct qeth_arp_qi_entry7);
2354 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2355 QETH_CARD_TEXT(card, 4, "arpev6");
2356 if (strip_entries) {
2358 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2359 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2362 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2363 sizeof(struct qeth_arp_qi_entry7_ipv6);
2366 QETH_CARD_TEXT(card, 4, "arpinv");
2373 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2375 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2376 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2379 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2380 struct qeth_reply *reply, unsigned long data)
2382 struct qeth_ipa_cmd *cmd;
2383 struct qeth_arp_query_data *qdata;
2384 struct qeth_arp_query_info *qinfo;
2387 int entrybytes_done;
2389 __u8 do_strip_entries;
2391 QETH_CARD_TEXT(card, 3, "arpquecb");
2393 qinfo = (struct qeth_arp_query_info *) reply->param;
2394 cmd = (struct qeth_ipa_cmd *) data;
2395 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2396 if (cmd->hdr.return_code) {
2397 QETH_CARD_TEXT(card, 4, "arpcberr");
2398 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2401 if (cmd->data.setassparms.hdr.return_code) {
2402 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2403 QETH_CARD_TEXT(card, 4, "setaperr");
2404 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2407 qdata = &cmd->data.setassparms.data.query_arp;
2408 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2410 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2411 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2412 entrybytes_done = 0;
2413 for (e = 0; e < qdata->no_entries; ++e) {
2416 struct qeth_arp_entrytype *etype;
2418 cur_entry = &qdata->data + entrybytes_done;
2419 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2420 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2421 QETH_CARD_TEXT(card, 4, "pmis");
2422 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2425 esize = get_arp_entry_size(card, qdata, etype,
2427 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2431 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2432 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2433 cmd->hdr.return_code = -ENOMEM;
2437 memcpy(qinfo->udata + qinfo->udata_offset,
2438 &qdata->data + entrybytes_done + stripped_bytes,
2440 entrybytes_done += esize + stripped_bytes;
2441 qinfo->udata_offset += esize;
2442 ++qinfo->no_entries;
2444 /* check if all replies received ... */
2445 if (cmd->data.setassparms.hdr.seq_no <
2446 cmd->data.setassparms.hdr.number_of_replies)
2448 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2449 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2450 /* keep STRIP_ENTRIES flag so the user program can distinguish
2451 * stripped entries from normal ones */
2452 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2453 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2454 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2455 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2459 memcpy(qinfo->udata, &i, 4);
2463 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2464 struct qeth_cmd_buffer *iob, int len,
2465 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2469 QETH_CARD_TEXT(card, 4, "sendarp");
2471 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2472 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2473 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2474 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2475 reply_cb, reply_param);
2478 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2479 enum qeth_prot_versions prot,
2480 struct qeth_arp_query_info *qinfo)
2482 struct qeth_cmd_buffer *iob;
2483 struct qeth_ipa_cmd *cmd;
2487 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2489 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2490 IPA_CMD_ASS_ARP_QUERY_INFO,
2491 sizeof(struct qeth_arp_query_data) - sizeof(char),
2493 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2494 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2495 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2496 cmd->data.setassparms.data.query_arp.no_entries = 0;
2497 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2498 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2499 qeth_l3_arp_query_cb, (void *)qinfo);
2503 "Error while querying ARP cache on %s: %s "
2504 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2505 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2511 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2513 struct qeth_arp_query_info qinfo = {0, };
2516 QETH_CARD_TEXT(card, 3, "arpquery");
2518 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2519 IPA_ARP_PROCESSING)) {
2520 QETH_CARD_TEXT(card, 3, "arpqnsup");
2524 /* get size of userspace buffer and mask_bits -> 6 bytes */
2525 if (copy_from_user(&qinfo, udata, 6)) {
2529 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2534 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2535 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2537 if (copy_to_user(udata, qinfo.udata, 4))
2541 #ifdef CONFIG_QETH_IPV6
2542 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2543 /* fails in case of GuestLAN QDIO mode */
2544 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2548 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2549 QETH_CARD_TEXT(card, 4, "qactf");
2553 QETH_CARD_TEXT_(card, 4, "qacts");
2561 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2562 struct qeth_arp_cache_entry *entry)
2564 struct qeth_cmd_buffer *iob;
2569 QETH_CARD_TEXT(card, 3, "arpadent");
2572 * currently GuestLAN only supports the ARP assist function
2573 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2574 * thus we say EOPNOTSUPP for this ARP function
2576 if (card->info.guestlan)
2578 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2582 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2583 IPA_CMD_ASS_ARP_ADD_ENTRY,
2584 sizeof(struct qeth_arp_cache_entry),
2586 rc = qeth_l3_send_setassparms(card, iob,
2587 sizeof(struct qeth_arp_cache_entry),
2588 (unsigned long) entry,
2589 qeth_l3_default_setassparms_cb, NULL);
2592 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2593 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2594 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2595 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2600 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2601 struct qeth_arp_cache_entry *entry)
2603 struct qeth_cmd_buffer *iob;
2604 char buf[16] = {0, };
2608 QETH_CARD_TEXT(card, 3, "arprment");
2611 * currently GuestLAN only supports the ARP assist function
2612 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2613 * thus we say EOPNOTSUPP for this ARP function
2615 if (card->info.guestlan)
2617 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2620 memcpy(buf, entry, 12);
2621 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2622 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2625 rc = qeth_l3_send_setassparms(card, iob,
2626 12, (unsigned long)buf,
2627 qeth_l3_default_setassparms_cb, NULL);
2631 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2632 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2633 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2634 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2639 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2644 QETH_CARD_TEXT(card, 3, "arpflush");
2647 * currently GuestLAN only supports the ARP assist function
2648 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2649 * thus we say EOPNOTSUPP for this ARP function
2651 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2653 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2656 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2657 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2660 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2661 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2662 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2667 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2669 struct qeth_card *card = dev->ml_priv;
2670 struct qeth_arp_cache_entry arp_entry;
2671 struct mii_ioctl_data *mii_data;
2677 if ((card->state != CARD_STATE_UP) &&
2678 (card->state != CARD_STATE_SOFTSETUP))
2682 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2683 if (!capable(CAP_NET_ADMIN)) {
2687 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2689 case SIOC_QETH_ARP_QUERY_INFO:
2690 if (!capable(CAP_NET_ADMIN)) {
2694 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2696 case SIOC_QETH_ARP_ADD_ENTRY:
2697 if (!capable(CAP_NET_ADMIN)) {
2701 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2702 sizeof(struct qeth_arp_cache_entry)))
2705 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2707 case SIOC_QETH_ARP_REMOVE_ENTRY:
2708 if (!capable(CAP_NET_ADMIN)) {
2712 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2713 sizeof(struct qeth_arp_cache_entry)))
2716 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2718 case SIOC_QETH_ARP_FLUSH_CACHE:
2719 if (!capable(CAP_NET_ADMIN)) {
2723 rc = qeth_l3_arp_flush_cache(card);
2725 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2726 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2728 case SIOC_QETH_GET_CARD_TYPE:
2729 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2730 card->info.type == QETH_CARD_TYPE_OSX) &&
2731 !card->info.guestlan)
2736 mii_data = if_mii(rq);
2737 mii_data->phy_id = 0;
2740 mii_data = if_mii(rq);
2741 if (mii_data->phy_id != 0)
2744 mii_data->val_out = qeth_mdio_read(dev,
2748 case SIOC_QETH_QUERY_OAT:
2749 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
2755 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2759 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2761 int cast_type = RTN_UNSPEC;
2762 struct neighbour *n = NULL;
2763 struct dst_entry *dst;
2768 n = dst_get_neighbour_noref(dst);
2770 cast_type = n->type;
2772 if ((cast_type == RTN_BROADCAST) ||
2773 (cast_type == RTN_MULTICAST) ||
2774 (cast_type == RTN_ANYCAST))
2781 /* try something else */
2782 if (skb->protocol == ETH_P_IPV6)
2783 return (skb_network_header(skb)[24] == 0xff) ?
2785 else if (skb->protocol == ETH_P_IP)
2786 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2789 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2790 return RTN_BROADCAST;
2794 hdr_mac = *((u16 *)skb->data);
2796 switch (card->info.link_type) {
2797 case QETH_LINK_TYPE_HSTR:
2798 case QETH_LINK_TYPE_LANE_TR:
2799 if ((hdr_mac == QETH_TR_MAC_NC) ||
2800 (hdr_mac == QETH_TR_MAC_C))
2801 return RTN_MULTICAST;
2803 /* eth or so multicast? */
2805 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2806 (hdr_mac == QETH_ETH_MAC_V6))
2807 return RTN_MULTICAST;
2813 static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2814 struct qeth_hdr *hdr, struct sk_buff *skb)
2817 struct af_iucv_trans_hdr *iucv_hdr;
2820 card->dev->header_ops->create(skb, card->dev, 0,
2821 card->dev->dev_addr, card->dev->dev_addr,
2822 card->dev->addr_len);
2824 iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
2825 memset(hdr, 0, sizeof(struct qeth_hdr));
2826 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2827 hdr->hdr.l3.ext_flags = 0;
2828 hdr->hdr.l3.length = skb->len;
2829 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2830 memset(daddr, 0, sizeof(daddr));
2833 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2834 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2837 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2838 struct sk_buff *skb, int ipv, int cast_type)
2840 struct dst_entry *dst;
2842 memset(hdr, 0, sizeof(struct qeth_hdr));
2843 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2844 hdr->hdr.l3.ext_flags = 0;
2847 * before we're going to overwrite this location with next hop ip.
2848 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2850 if (vlan_tx_tag_present(skb)) {
2851 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2852 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2854 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2855 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2858 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2863 struct rtable *rt = (struct rtable *) dst;
2864 __be32 *pkey = &ip_hdr(skb)->daddr;
2867 pkey = &rt->rt_gateway;
2870 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2871 memset(hdr->hdr.l3.dest_addr, 0, 12);
2872 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
2873 } else if (ipv == 6) {
2874 struct rt6_info *rt = (struct rt6_info *) dst;
2875 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2877 if (!ipv6_addr_any(&rt->rt6i_gateway))
2878 pkey = &rt->rt6i_gateway;
2881 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2882 if (card->info.type == QETH_CARD_TYPE_IQD)
2883 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2884 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
2887 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2888 !memcmp(skb->data + sizeof(struct qeth_hdr) +
2889 sizeof(__u16), skb->dev->broadcast, 6)) {
2890 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2892 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2893 skb->dev->broadcast, 6)) {
2895 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2898 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2899 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2900 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2906 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2907 struct qeth_hdr *hdr, struct sk_buff *skb)
2909 struct iphdr *iph = ip_hdr(skb);
2911 /* tcph->check contains already the pseudo hdr checksum
2912 * so just set the header flags
2914 if (iph->protocol == IPPROTO_UDP)
2915 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2916 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2917 QETH_HDR_EXT_CSUM_HDR_REQ;
2919 if (card->options.performance_stats)
2920 card->perf_stats.tx_csum++;
2923 static void qeth_tso_fill_header(struct qeth_card *card,
2924 struct qeth_hdr *qhdr, struct sk_buff *skb)
2926 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2927 struct tcphdr *tcph = tcp_hdr(skb);
2928 struct iphdr *iph = ip_hdr(skb);
2929 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2931 /*fix header to TSO values ...*/
2932 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2933 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2934 /*set values which are fix for the first approach ...*/
2935 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2936 hdr->ext.imb_hdr_no = 1;
2937 hdr->ext.hdr_type = 1;
2938 hdr->ext.hdr_version = 1;
2939 hdr->ext.hdr_len = 28;
2940 /*insert non-fix values */
2941 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2942 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2943 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2944 sizeof(struct qeth_hdr_tso));
2946 if (skb->protocol == ETH_P_IPV6) {
2947 ip6h->payload_len = 0;
2948 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2951 /*OSA want us to set these values ...*/
2952 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2959 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2961 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2962 tcp_hdr(skb)->doff * 4;
2963 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
2964 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
2965 elements += skb_shinfo(skb)->nr_frags;
2969 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2973 struct qeth_hdr *hdr = NULL;
2974 int elements_needed = 0;
2976 struct qeth_card *card = dev->ml_priv;
2977 struct sk_buff *new_skb = NULL;
2978 int ipv = qeth_get_ip_version(skb);
2979 int cast_type = qeth_l3_get_cast_type(card, skb);
2980 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2981 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2982 int tx_bytes = skb->len;
2984 int data_offset = -1;
2987 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2988 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2989 ((card->options.cq == QETH_CQ_ENABLED) &&
2990 (skb->protocol != ETH_P_AF_IUCV)))) ||
2991 card->options.sniffer)
2994 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2995 card->stats.tx_carrier_errors++;
2999 if ((cast_type == RTN_BROADCAST) &&
3000 (card->info.broadcast_capable == 0))
3003 if (card->options.performance_stats) {
3004 card->perf_stats.outbound_cnt++;
3005 card->perf_stats.outbound_start_time = qeth_get_micros();
3008 large_send = skb_is_gso(skb);
3010 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
3011 (skb_shinfo(skb)->nr_frags == 0)) {
3013 if (new_skb->protocol == ETH_P_AF_IUCV)
3016 data_offset = ETH_HLEN;
3017 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3022 /* create a clone with writeable headroom */
3023 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
3029 if (card->info.type == QETH_CARD_TYPE_IQD) {
3030 if (data_offset < 0)
3031 skb_pull(new_skb, ETH_HLEN);
3034 if (card->dev->type == ARPHRD_IEEE802_TR)
3035 skb_pull(new_skb, TR_HLEN);
3037 skb_pull(new_skb, ETH_HLEN);
3040 if (ipv != 4 && vlan_tx_tag_present(new_skb)) {
3041 skb_push(new_skb, VLAN_HLEN);
3042 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
3043 skb_copy_to_linear_data_offset(new_skb, 4,
3044 new_skb->data + 8, 4);
3045 skb_copy_to_linear_data_offset(new_skb, 8,
3046 new_skb->data + 12, 4);
3047 tag = (u16 *)(new_skb->data + 12);
3048 *tag = __constant_htons(ETH_P_8021Q);
3049 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
3053 netif_stop_queue(dev);
3055 /* fix hardware limitation: as long as we do not have sbal
3056 * chaining we can not send long frag lists
3059 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3060 if (skb_linearize(new_skb))
3062 if (card->options.performance_stats)
3063 card->perf_stats.tx_lin++;
3067 if (large_send && (cast_type == RTN_UNSPEC)) {
3068 hdr = (struct qeth_hdr *)skb_push(new_skb,
3069 sizeof(struct qeth_hdr_tso));
3070 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3071 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3072 qeth_tso_fill_header(card, hdr, new_skb);
3075 if (data_offset < 0) {
3076 hdr = (struct qeth_hdr *)skb_push(new_skb,
3077 sizeof(struct qeth_hdr));
3078 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3081 if (new_skb->protocol == ETH_P_AF_IUCV)
3082 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
3084 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3086 hdr->hdr.l3.length = new_skb->len - data_offset;
3090 if (skb->ip_summed == CHECKSUM_PARTIAL)
3091 qeth_l3_hdr_csum(card, hdr, new_skb);
3094 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3097 if (data_offset >= 0)
3098 kmem_cache_free(qeth_core_header_cache, hdr);
3101 elements_needed += elems;
3102 nr_frags = skb_shinfo(new_skb)->nr_frags;
3104 if (card->info.type != QETH_CARD_TYPE_IQD) {
3107 len = ((unsigned long)tcp_hdr(new_skb) +
3108 tcp_hdr(new_skb)->doff * 4) -
3109 (unsigned long)new_skb->data;
3111 len = sizeof(struct qeth_hdr_layer3);
3113 if (qeth_hdr_chk_and_bounce(new_skb, len))
3115 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3118 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3119 elements_needed, data_offset, 0);
3122 card->stats.tx_packets++;
3123 card->stats.tx_bytes += tx_bytes;
3125 dev_kfree_skb_any(skb);
3126 if (card->options.performance_stats) {
3128 card->perf_stats.large_send_bytes += tx_bytes;
3129 card->perf_stats.large_send_cnt++;
3132 card->perf_stats.sg_skbs_sent++;
3133 /* nr_frags + skb->data */
3134 card->perf_stats.sg_frags_sent += nr_frags + 1;
3139 if (data_offset >= 0)
3140 kmem_cache_free(qeth_core_header_cache, hdr);
3144 dev_kfree_skb_any(new_skb);
3145 return NETDEV_TX_BUSY;
3150 netif_wake_queue(dev);
3151 if (card->options.performance_stats)
3152 card->perf_stats.outbound_time += qeth_get_micros() -
3153 card->perf_stats.outbound_start_time;
3157 card->stats.tx_dropped++;
3158 card->stats.tx_errors++;
3159 if ((new_skb != skb) && new_skb)
3160 dev_kfree_skb_any(new_skb);
3161 dev_kfree_skb_any(skb);
3162 netif_wake_queue(dev);
3163 return NETDEV_TX_OK;
3166 static int __qeth_l3_open(struct net_device *dev)
3168 struct qeth_card *card = dev->ml_priv;
3171 QETH_CARD_TEXT(card, 4, "qethopen");
3172 if (card->state == CARD_STATE_UP)
3174 if (card->state != CARD_STATE_SOFTSETUP)
3176 card->data.state = CH_STATE_UP;
3177 card->state = CARD_STATE_UP;
3178 netif_start_queue(dev);
3180 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3181 napi_enable(&card->napi);
3182 napi_schedule(&card->napi);
3188 static int qeth_l3_open(struct net_device *dev)
3190 struct qeth_card *card = dev->ml_priv;
3192 QETH_CARD_TEXT(card, 5, "qethope_");
3193 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3194 QETH_CARD_TEXT(card, 3, "openREC");
3195 return -ERESTARTSYS;
3197 return __qeth_l3_open(dev);
3200 static int qeth_l3_stop(struct net_device *dev)
3202 struct qeth_card *card = dev->ml_priv;
3204 QETH_CARD_TEXT(card, 4, "qethstop");
3205 netif_tx_disable(dev);
3206 if (card->state == CARD_STATE_UP) {
3207 card->state = CARD_STATE_SOFTSETUP;
3208 napi_disable(&card->napi);
3213 static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
3214 netdev_features_t features)
3216 struct qeth_card *card = dev->ml_priv;
3218 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3219 features &= ~NETIF_F_IP_CSUM;
3220 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3221 features &= ~NETIF_F_TSO;
3222 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3223 features &= ~NETIF_F_RXCSUM;
3228 static int qeth_l3_set_features(struct net_device *dev,
3229 netdev_features_t features)
3231 struct qeth_card *card = dev->ml_priv;
3232 u32 changed = dev->features ^ features;
3235 if (!(changed & NETIF_F_RXCSUM))
3238 if (card->state == CARD_STATE_DOWN ||
3239 card->state == CARD_STATE_RECOVER)
3242 err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM);
3244 dev->features = features ^ NETIF_F_RXCSUM;
3249 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3250 .get_link = ethtool_op_get_link,
3251 .get_strings = qeth_core_get_strings,
3252 .get_ethtool_stats = qeth_core_get_ethtool_stats,
3253 .get_sset_count = qeth_core_get_sset_count,
3254 .get_drvinfo = qeth_core_get_drvinfo,
3255 .get_settings = qeth_core_ethtool_get_settings,
3259 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3260 * NOARP on the netdevice is no option because it also turns off neighbor
3261 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3262 * arp resolution but we want the hard header (packet socket will work
3265 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3267 n->nud_state = NUD_NOARP;
3268 memcpy(n->ha, "FAKELL", 6);
3269 n->output = n->ops->connected_output;
3274 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3276 if (np->tbl->family == AF_INET)
3277 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3282 static const struct net_device_ops qeth_l3_netdev_ops = {
3283 .ndo_open = qeth_l3_open,
3284 .ndo_stop = qeth_l3_stop,
3285 .ndo_get_stats = qeth_get_stats,
3286 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3287 .ndo_validate_addr = eth_validate_addr,
3288 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3289 .ndo_do_ioctl = qeth_l3_do_ioctl,
3290 .ndo_change_mtu = qeth_change_mtu,
3291 .ndo_fix_features = qeth_l3_fix_features,
3292 .ndo_set_features = qeth_l3_set_features,
3293 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3294 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3295 .ndo_tx_timeout = qeth_tx_timeout,
3298 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3299 .ndo_open = qeth_l3_open,
3300 .ndo_stop = qeth_l3_stop,
3301 .ndo_get_stats = qeth_get_stats,
3302 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3303 .ndo_validate_addr = eth_validate_addr,
3304 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3305 .ndo_do_ioctl = qeth_l3_do_ioctl,
3306 .ndo_change_mtu = qeth_change_mtu,
3307 .ndo_fix_features = qeth_l3_fix_features,
3308 .ndo_set_features = qeth_l3_set_features,
3309 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3310 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3311 .ndo_tx_timeout = qeth_tx_timeout,
3312 .ndo_neigh_setup = qeth_l3_neigh_setup,
3315 static int qeth_l3_setup_netdev(struct qeth_card *card)
3317 if (card->info.type == QETH_CARD_TYPE_OSD ||
3318 card->info.type == QETH_CARD_TYPE_OSX) {
3319 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3320 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3322 card->dev = alloc_trdev(0);
3326 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3328 card->dev = alloc_etherdev(0);
3331 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3333 /*IPv6 address autoconfiguration stuff*/
3334 qeth_l3_get_unique_id(card);
3335 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3336 card->dev->dev_id = card->info.unique_id &
3338 if (!card->info.guestlan) {
3339 card->dev->hw_features = NETIF_F_SG |
3340 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3342 card->dev->features = NETIF_F_RXCSUM;
3345 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3346 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3349 card->dev->flags |= IFF_NOARP;
3350 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3351 qeth_l3_iqd_read_initial_mac(card);
3352 if (card->options.hsuid[0])
3353 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
3357 card->dev->ml_priv = card;
3358 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3359 card->dev->mtu = card->info.initial_mtu;
3360 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3361 card->dev->features |= NETIF_F_HW_VLAN_TX |
3362 NETIF_F_HW_VLAN_RX |
3363 NETIF_F_HW_VLAN_FILTER;
3364 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3365 card->dev->gso_max_size = 15 * PAGE_SIZE;
3367 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3368 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3369 return register_netdev(card->dev);
3372 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3374 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3376 qeth_l3_create_device_attributes(&gdev->dev);
3377 card->options.layer2 = 0;
3378 card->info.hwtrap = 0;
3379 card->discipline.start_poll = qeth_qdio_start_poll;
3380 card->discipline.input_handler = (qdio_handler_t *)
3381 qeth_qdio_input_handler;
3382 card->discipline.output_handler = (qdio_handler_t *)
3383 qeth_qdio_output_handler;
3384 card->discipline.recover = qeth_l3_recover;
3388 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3390 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3392 qeth_l3_remove_device_attributes(&cgdev->dev);
3394 qeth_set_allowed_threads(card, 0, 1);
3395 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3397 if (cgdev->state == CCWGROUP_ONLINE)
3398 qeth_l3_set_offline(cgdev);
3401 unregister_netdev(card->dev);
3405 qeth_l3_clear_ip_list(card, 0);
3406 qeth_l3_clear_ipato_list(card);
3410 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3412 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3414 enum qeth_card_states recover_flag;
3417 mutex_lock(&card->discipline_mutex);
3418 mutex_lock(&card->conf_mutex);
3419 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3420 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3422 recover_flag = card->state;
3423 rc = qeth_core_hardsetup_card(card);
3425 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3430 if (!card->dev && qeth_l3_setup_netdev(card)) {
3435 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3436 if (card->info.hwtrap &&
3437 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3438 card->info.hwtrap = 0;
3440 card->info.hwtrap = 0;
3442 card->state = CARD_STATE_HARDSETUP;
3443 memset(&card->rx, 0, sizeof(struct qeth_rx));
3444 qeth_print_status_message(card);
3447 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3449 rc = qeth_send_startlan(card);
3451 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3453 dev_warn(&card->gdev->dev,
3454 "The LAN is offline\n");
3455 card->lan_online = 0;
3461 card->lan_online = 1;
3464 rc = qeth_l3_setadapter_parms(card);
3466 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3467 if (!card->options.sniffer) {
3468 rc = qeth_l3_start_ipassists(card);
3470 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3471 rc = qeth_l3_setrouting_v4(card);
3473 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3474 rc = qeth_l3_setrouting_v6(card);
3476 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3478 netif_tx_disable(card->dev);
3480 rc = qeth_init_qdio_queues(card);
3482 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3486 card->state = CARD_STATE_SOFTSETUP;
3488 qeth_set_allowed_threads(card, 0xffffffff, 0);
3489 qeth_l3_set_ip_addr_list(card);
3490 if (card->lan_online)
3491 netif_carrier_on(card->dev);
3493 netif_carrier_off(card->dev);
3494 if (recover_flag == CARD_STATE_RECOVER) {
3497 __qeth_l3_open(card->dev);
3499 dev_open(card->dev);
3500 qeth_l3_set_multicast_list(card->dev);
3503 /* let user_space know that device is online */
3504 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3505 mutex_unlock(&card->conf_mutex);
3506 mutex_unlock(&card->discipline_mutex);
3509 qeth_l3_stop_card(card, 0);
3510 ccw_device_set_offline(CARD_DDEV(card));
3511 ccw_device_set_offline(CARD_WDEV(card));
3512 ccw_device_set_offline(CARD_RDEV(card));
3513 if (recover_flag == CARD_STATE_RECOVER)
3514 card->state = CARD_STATE_RECOVER;
3516 card->state = CARD_STATE_DOWN;
3517 mutex_unlock(&card->conf_mutex);
3518 mutex_unlock(&card->discipline_mutex);
3522 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3524 return __qeth_l3_set_online(gdev, 0);
3527 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3530 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3531 int rc = 0, rc2 = 0, rc3 = 0;
3532 enum qeth_card_states recover_flag;
3534 mutex_lock(&card->discipline_mutex);
3535 mutex_lock(&card->conf_mutex);
3536 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3537 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3539 if (card->dev && netif_carrier_ok(card->dev))
3540 netif_carrier_off(card->dev);
3541 recover_flag = card->state;
3542 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3543 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3544 card->info.hwtrap = 1;
3546 qeth_l3_stop_card(card, recovery_mode);
3547 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3549 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3552 rc = ccw_device_set_offline(CARD_DDEV(card));
3553 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3554 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3556 rc = (rc2) ? rc2 : rc3;
3558 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3559 if (recover_flag == CARD_STATE_UP)
3560 card->state = CARD_STATE_RECOVER;
3561 /* let user_space know that device is offline */
3562 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3563 mutex_unlock(&card->conf_mutex);
3564 mutex_unlock(&card->discipline_mutex);
3568 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3570 return __qeth_l3_set_offline(cgdev, 0);
3573 static int qeth_l3_recover(void *ptr)
3575 struct qeth_card *card;
3578 card = (struct qeth_card *) ptr;
3579 QETH_CARD_TEXT(card, 2, "recover1");
3580 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3581 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3583 QETH_CARD_TEXT(card, 2, "recover2");
3584 dev_warn(&card->gdev->dev,
3585 "A recovery process has been started for the device\n");
3586 __qeth_l3_set_offline(card->gdev, 1);
3587 rc = __qeth_l3_set_online(card->gdev, 1);
3589 dev_info(&card->gdev->dev,
3590 "Device successfully recovered!\n");
3593 dev_close(card->dev);
3595 dev_warn(&card->gdev->dev, "The qeth device driver "
3596 "failed to recover an error on the device\n");
3598 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3599 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3603 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3605 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3606 qeth_set_allowed_threads(card, 0, 1);
3607 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3608 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3609 qeth_qdio_clear_card(card, 0);
3610 qeth_clear_qdio_buffers(card);
3613 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3615 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3618 netif_device_detach(card->dev);
3619 qeth_set_allowed_threads(card, 0, 1);
3620 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3621 if (gdev->state == CCWGROUP_OFFLINE)
3623 if (card->state == CARD_STATE_UP) {
3624 if (card->info.hwtrap)
3625 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3626 __qeth_l3_set_offline(card->gdev, 1);
3628 __qeth_l3_set_offline(card->gdev, 0);
3632 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3634 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3637 if (gdev->state == CCWGROUP_OFFLINE)
3640 if (card->state == CARD_STATE_RECOVER) {
3641 rc = __qeth_l3_set_online(card->gdev, 1);
3644 dev_close(card->dev);
3648 rc = __qeth_l3_set_online(card->gdev, 0);
3650 qeth_set_allowed_threads(card, 0xffffffff, 0);
3652 netif_device_attach(card->dev);
3654 dev_warn(&card->gdev->dev, "The qeth device driver "
3655 "failed to recover an error on the device\n");
3659 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3660 .probe = qeth_l3_probe_device,
3661 .remove = qeth_l3_remove_device,
3662 .set_online = qeth_l3_set_online,
3663 .set_offline = qeth_l3_set_offline,
3664 .shutdown = qeth_l3_shutdown,
3665 .freeze = qeth_l3_pm_suspend,
3666 .thaw = qeth_l3_pm_resume,
3667 .restore = qeth_l3_pm_resume,
3669 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3671 static int qeth_l3_ip_event(struct notifier_block *this,
3672 unsigned long event, void *ptr)
3674 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3675 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3676 struct qeth_ipaddr *addr;
3677 struct qeth_card *card;
3679 if (dev_net(dev) != &init_net)
3682 card = qeth_l3_get_card_from_dev(dev);
3683 QETH_CARD_TEXT(card, 3, "ipevent");
3687 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3689 addr->u.a4.addr = ifa->ifa_address;
3690 addr->u.a4.mask = ifa->ifa_mask;
3691 addr->type = QETH_IP_TYPE_NORMAL;
3697 if (!qeth_l3_add_ip(card, addr))
3701 if (!qeth_l3_delete_ip(card, addr))
3707 qeth_l3_set_ip_addr_list(card);
3712 static struct notifier_block qeth_l3_ip_notifier = {
3717 #ifdef CONFIG_QETH_IPV6
3719 * IPv6 event handler
3721 static int qeth_l3_ip6_event(struct notifier_block *this,
3722 unsigned long event, void *ptr)
3724 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3725 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3726 struct qeth_ipaddr *addr;
3727 struct qeth_card *card;
3729 card = qeth_l3_get_card_from_dev(dev);
3732 QETH_CARD_TEXT(card, 3, "ip6event");
3733 if (!qeth_is_supported(card, IPA_IPV6))
3736 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3738 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3739 addr->u.a6.pfxlen = ifa->prefix_len;
3740 addr->type = QETH_IP_TYPE_NORMAL;
3746 if (!qeth_l3_add_ip(card, addr))
3750 if (!qeth_l3_delete_ip(card, addr))
3756 qeth_l3_set_ip_addr_list(card);
3761 static struct notifier_block qeth_l3_ip6_notifier = {
3767 static int qeth_l3_register_notifiers(void)
3771 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3772 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3775 #ifdef CONFIG_QETH_IPV6
3776 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3778 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3782 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3787 static void qeth_l3_unregister_notifiers(void)
3790 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3791 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3792 #ifdef CONFIG_QETH_IPV6
3793 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3794 #endif /* QETH_IPV6 */
3797 static int __init qeth_l3_init(void)
3801 pr_info("register layer 3 discipline\n");
3802 rc = qeth_l3_register_notifiers();
3806 static void __exit qeth_l3_exit(void)
3808 qeth_l3_unregister_notifiers();
3809 pr_info("unregister layer 3 discipline\n");
3812 module_init(qeth_l3_init);
3813 module_exit(qeth_l3_exit);
3814 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3815 MODULE_DESCRIPTION("qeth layer 3 discipline");
3816 MODULE_LICENSE("GPL");