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/string.h>
17 #include <linux/errno.h>
18 #include <linux/kernel.h>
19 #include <linux/etherdevice.h>
20 #include <linux/mii.h>
22 #include <linux/ipv6.h>
23 #include <linux/inetdevice.h>
24 #include <linux/igmp.h>
25 #include <linux/slab.h>
29 #include <net/ip6_checksum.h>
34 static int qeth_l3_set_offline(struct ccwgroup_device *);
35 static int qeth_l3_recover(void *);
36 static int qeth_l3_stop(struct net_device *);
37 static void qeth_l3_set_multicast_list(struct net_device *);
38 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
39 static int qeth_l3_register_addr_entry(struct qeth_card *,
40 struct qeth_ipaddr *);
41 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
42 struct qeth_ipaddr *);
43 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
44 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
46 int qeth_l3_set_large_send(struct qeth_card *card,
47 enum qeth_large_send_types type)
51 card->options.large_send = type;
52 if (card->dev == NULL)
55 if (card->options.large_send == QETH_LARGE_SEND_TSO) {
56 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
57 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
60 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
62 card->options.large_send = QETH_LARGE_SEND_NO;
66 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
68 card->options.large_send = QETH_LARGE_SEND_NO;
73 static int qeth_l3_isxdigit(char *buf)
76 if (!isxdigit(*buf++))
82 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
84 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
87 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
89 int count = 0, rc = 0;
93 rc = sscanf(buf, "%u.%u.%u.%u%c",
94 &in[0], &in[1], &in[2], &in[3], &c);
95 if (rc != 4 && (rc != 5 || c != '\n'))
97 for (count = 0; count < 4; count++) {
100 addr[count] = in[count];
105 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
107 sprintf(buf, "%pI6", addr);
110 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
112 const char *end, *end_tmp, *start;
115 int num2, cnt, out, found, save_cnt;
116 unsigned short in_tmp[8] = {0, };
118 cnt = out = found = save_cnt = num2 = 0;
123 end = strchr(start, ':');
125 end = buf + strlen(buf);
126 end_tmp = strchr(start, '\n');
133 if ((end - start) > 4)
135 memcpy(num, start, end - start);
136 if (!qeth_l3_isxdigit(num))
138 sscanf(start, "%x", &num2);
140 in_tmp[save_cnt++] = num2;
152 if (cnt + save_cnt > 8)
156 in[cnt--] = in_tmp[--save_cnt];
160 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
163 if (proto == QETH_PROT_IPV4)
164 qeth_l3_ipaddr4_to_string(addr, buf);
165 else if (proto == QETH_PROT_IPV6)
166 qeth_l3_ipaddr6_to_string(addr, buf);
169 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
172 if (proto == QETH_PROT_IPV4)
173 return qeth_l3_string_to_ipaddr4(buf, addr);
174 else if (proto == QETH_PROT_IPV6)
175 return qeth_l3_string_to_ipaddr6(buf, addr);
180 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
185 for (i = 0; i < len; ++i) {
187 for (j = 7; j >= 0; --j) {
188 bits[i*8 + j] = octet & 1;
194 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
195 struct qeth_ipaddr *addr)
197 struct qeth_ipato_entry *ipatoe;
198 u8 addr_bits[128] = {0, };
199 u8 ipatoe_bits[128] = {0, };
202 if (!card->ipato.enabled)
205 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
206 (addr->proto == QETH_PROT_IPV4)? 4:16);
207 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
208 if (addr->proto != ipatoe->proto)
210 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
211 (ipatoe->proto == QETH_PROT_IPV4) ?
213 if (addr->proto == QETH_PROT_IPV4)
214 rc = !memcmp(addr_bits, ipatoe_bits,
215 min(32, ipatoe->mask_bits));
217 rc = !memcmp(addr_bits, ipatoe_bits,
218 min(128, ipatoe->mask_bits));
223 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
225 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
232 * Add IP to be added to todo list. If there is already an "add todo"
233 * in this list we just incremenent the reference count.
234 * Returns 0 if we just incremented reference count.
236 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
237 struct qeth_ipaddr *addr, int add)
239 struct qeth_ipaddr *tmp, *t;
242 if (card->options.sniffer)
244 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
245 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
246 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
248 if ((tmp->proto == QETH_PROT_IPV4) &&
249 (addr->proto == QETH_PROT_IPV4) &&
250 (tmp->type == addr->type) &&
251 (tmp->is_multicast == addr->is_multicast) &&
252 (tmp->u.a4.addr == addr->u.a4.addr) &&
253 (tmp->u.a4.mask == addr->u.a4.mask)) {
257 if ((tmp->proto == QETH_PROT_IPV6) &&
258 (addr->proto == QETH_PROT_IPV6) &&
259 (tmp->type == addr->type) &&
260 (tmp->is_multicast == addr->is_multicast) &&
261 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
262 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
263 sizeof(struct in6_addr)) == 0)) {
269 if (addr->users != 0)
270 tmp->users += addr->users;
272 tmp->users += add ? 1 : -1;
273 if (tmp->users == 0) {
274 list_del(&tmp->entry);
279 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
280 list_add(&addr->entry, card->ip_tbd_list);
282 if (addr->users == 0)
283 addr->users += add ? 1 : -1;
284 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
285 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
286 QETH_CARD_TEXT(card, 2, "tkovaddr");
287 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
289 list_add_tail(&addr->entry, card->ip_tbd_list);
295 static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
300 QETH_CARD_TEXT(card, 4, "delip");
302 if (addr->proto == QETH_PROT_IPV4)
303 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
305 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
306 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
308 spin_lock_irqsave(&card->ip_lock, flags);
309 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
310 spin_unlock_irqrestore(&card->ip_lock, flags);
314 static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
319 QETH_CARD_TEXT(card, 4, "addip");
320 if (addr->proto == QETH_PROT_IPV4)
321 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
323 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
324 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
326 spin_lock_irqsave(&card->ip_lock, flags);
327 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
328 spin_unlock_irqrestore(&card->ip_lock, flags);
333 static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
334 enum qeth_prot_versions prot)
336 struct qeth_ipaddr *addr;
338 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
342 addr->type = QETH_IP_TYPE_NORMAL;
347 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
349 struct qeth_ipaddr *iptodo;
352 QETH_CARD_TEXT(card, 4, "delmc");
353 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
355 QETH_CARD_TEXT(card, 2, "dmcnomem");
358 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
359 spin_lock_irqsave(&card->ip_lock, flags);
360 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
362 spin_unlock_irqrestore(&card->ip_lock, flags);
366 * Add/remove address to/from card's ip list, i.e. try to add or remove
367 * reference to/from an IP address that is already registered on the card.
369 * 0 address was on card and its reference count has been adjusted,
370 * but is still > 0, so nothing has to be done
371 * also returns 0 if card was not on card and the todo was to delete
372 * the address -> there is also nothing to be done
373 * 1 address was not on card and the todo is to add it to the card's ip
375 * -1 address was on card and its reference count has been decremented
376 * to <= 0 by the todo -> address must be removed from card
378 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
379 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
381 struct qeth_ipaddr *addr;
384 list_for_each_entry(addr, &card->ip_list, entry) {
385 if ((addr->proto == QETH_PROT_IPV4) &&
386 (todo->proto == QETH_PROT_IPV4) &&
387 (addr->type == todo->type) &&
388 (addr->u.a4.addr == todo->u.a4.addr) &&
389 (addr->u.a4.mask == todo->u.a4.mask)) {
393 if ((addr->proto == QETH_PROT_IPV6) &&
394 (todo->proto == QETH_PROT_IPV6) &&
395 (addr->type == todo->type) &&
396 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
397 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
398 sizeof(struct in6_addr)) == 0)) {
404 addr->users += todo->users;
405 if (addr->users <= 0) {
409 /* for VIPA and RXIP limit refcount to 1 */
410 if (addr->type != QETH_IP_TYPE_NORMAL)
415 if (todo->users > 0) {
416 /* for VIPA and RXIP limit refcount to 1 */
417 if (todo->type != QETH_IP_TYPE_NORMAL)
424 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
425 unsigned long *flags)
427 struct list_head fail_list;
428 struct qeth_ipaddr *addr, *tmp;
431 INIT_LIST_HEAD(&fail_list);
433 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
434 if (addr->is_multicast) {
435 list_del(&addr->entry);
436 spin_unlock_irqrestore(&card->ip_lock, *flags);
437 rc = qeth_l3_deregister_addr_entry(card, addr);
438 spin_lock_irqsave(&card->ip_lock, *flags);
439 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
442 list_add_tail(&addr->entry, &fail_list);
446 list_splice(&fail_list, &card->ip_list);
449 static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
451 struct list_head *tbd_list;
452 struct qeth_ipaddr *todo, *addr;
456 QETH_CARD_TEXT(card, 2, "sdiplist");
457 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
459 if ((card->state != CARD_STATE_UP &&
460 card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
464 spin_lock_irqsave(&card->ip_lock, flags);
465 tbd_list = card->ip_tbd_list;
466 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
467 if (!card->ip_tbd_list) {
468 QETH_CARD_TEXT(card, 0, "silnomem");
469 card->ip_tbd_list = tbd_list;
470 spin_unlock_irqrestore(&card->ip_lock, flags);
473 INIT_LIST_HEAD(card->ip_tbd_list);
475 while (!list_empty(tbd_list)) {
476 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
477 list_del(&todo->entry);
478 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
479 __qeth_l3_delete_all_mc(card, &flags);
483 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
485 /* nothing to be done; only adjusted refcount */
487 } else if (rc == 1) {
488 /* new entry to be added to on-card list */
489 spin_unlock_irqrestore(&card->ip_lock, flags);
490 rc = qeth_l3_register_addr_entry(card, todo);
491 spin_lock_irqsave(&card->ip_lock, flags);
492 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
493 list_add_tail(&todo->entry, &card->ip_list);
496 } else if (rc == -1) {
497 /* on-card entry to be removed */
498 list_del_init(&addr->entry);
499 spin_unlock_irqrestore(&card->ip_lock, flags);
500 rc = qeth_l3_deregister_addr_entry(card, addr);
501 spin_lock_irqsave(&card->ip_lock, flags);
502 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
505 list_add_tail(&addr->entry, &card->ip_list);
509 spin_unlock_irqrestore(&card->ip_lock, flags);
513 static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
516 struct qeth_ipaddr *addr, *tmp;
519 QETH_CARD_TEXT(card, 4, "clearip");
520 if (recover && card->options.sniffer)
522 spin_lock_irqsave(&card->ip_lock, flags);
523 /* clear todo list */
524 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
525 list_del(&addr->entry);
529 while (!list_empty(&card->ip_list)) {
530 addr = list_entry(card->ip_list.next,
531 struct qeth_ipaddr, entry);
532 list_del_init(&addr->entry);
534 spin_unlock_irqrestore(&card->ip_lock, flags);
535 qeth_l3_deregister_addr_entry(card, addr);
536 spin_lock_irqsave(&card->ip_lock, flags);
538 if (!recover || addr->is_multicast) {
542 list_add_tail(&addr->entry, card->ip_tbd_list);
544 spin_unlock_irqrestore(&card->ip_lock, flags);
547 static int qeth_l3_address_exists_in_list(struct list_head *list,
548 struct qeth_ipaddr *addr, int same_type)
550 struct qeth_ipaddr *tmp;
552 list_for_each_entry(tmp, list, entry) {
553 if ((tmp->proto == QETH_PROT_IPV4) &&
554 (addr->proto == QETH_PROT_IPV4) &&
555 ((same_type && (tmp->type == addr->type)) ||
556 (!same_type && (tmp->type != addr->type))) &&
557 (tmp->u.a4.addr == addr->u.a4.addr))
560 if ((tmp->proto == QETH_PROT_IPV6) &&
561 (addr->proto == QETH_PROT_IPV6) &&
562 ((same_type && (tmp->type == addr->type)) ||
563 (!same_type && (tmp->type != addr->type))) &&
564 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
565 sizeof(struct in6_addr)) == 0))
572 static int qeth_l3_send_setdelmc(struct qeth_card *card,
573 struct qeth_ipaddr *addr, int ipacmd)
576 struct qeth_cmd_buffer *iob;
577 struct qeth_ipa_cmd *cmd;
579 QETH_CARD_TEXT(card, 4, "setdelmc");
581 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
582 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
583 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
584 if (addr->proto == QETH_PROT_IPV6)
585 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
586 sizeof(struct in6_addr));
588 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
590 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
595 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
598 for (i = 0; i < 16; i++) {
603 netmask[i] = (u8)(0xFF00 >> j);
609 static int qeth_l3_send_setdelip(struct qeth_card *card,
610 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
613 struct qeth_cmd_buffer *iob;
614 struct qeth_ipa_cmd *cmd;
617 QETH_CARD_TEXT(card, 4, "setdelip");
618 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
620 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
621 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
622 if (addr->proto == QETH_PROT_IPV6) {
623 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
624 sizeof(struct in6_addr));
625 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
626 memcpy(cmd->data.setdelip6.mask, netmask,
627 sizeof(struct in6_addr));
628 cmd->data.setdelip6.flags = flags;
630 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
631 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
632 cmd->data.setdelip4.flags = flags;
635 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
640 static int qeth_l3_send_setrouting(struct qeth_card *card,
641 enum qeth_routing_types type, enum qeth_prot_versions prot)
644 struct qeth_ipa_cmd *cmd;
645 struct qeth_cmd_buffer *iob;
647 QETH_CARD_TEXT(card, 4, "setroutg");
648 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
649 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
650 cmd->data.setrtg.type = (type);
651 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
656 static void qeth_l3_correct_routing_type(struct qeth_card *card,
657 enum qeth_routing_types *type, enum qeth_prot_versions prot)
659 if (card->info.type == QETH_CARD_TYPE_IQD) {
662 case PRIMARY_CONNECTOR:
663 case SECONDARY_CONNECTOR:
664 case MULTICAST_ROUTER:
673 case SECONDARY_ROUTER:
675 case MULTICAST_ROUTER:
676 if (qeth_is_ipafunc_supported(card, prot,
687 int qeth_l3_setrouting_v4(struct qeth_card *card)
691 QETH_CARD_TEXT(card, 3, "setrtg4");
693 qeth_l3_correct_routing_type(card, &card->options.route4.type,
696 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
699 card->options.route4.type = NO_ROUTER;
700 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
701 " on %s. Type set to 'no router'.\n", rc,
702 QETH_CARD_IFNAME(card));
707 int qeth_l3_setrouting_v6(struct qeth_card *card)
711 QETH_CARD_TEXT(card, 3, "setrtg6");
712 #ifdef CONFIG_QETH_IPV6
714 if (!qeth_is_supported(card, IPA_IPV6))
716 qeth_l3_correct_routing_type(card, &card->options.route6.type,
719 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
722 card->options.route6.type = NO_ROUTER;
723 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
724 " on %s. Type set to 'no router'.\n", rc,
725 QETH_CARD_IFNAME(card));
732 * IP address takeover related functions
734 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
737 struct qeth_ipato_entry *ipatoe, *tmp;
740 spin_lock_irqsave(&card->ip_lock, flags);
741 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
742 list_del(&ipatoe->entry);
745 spin_unlock_irqrestore(&card->ip_lock, flags);
748 int qeth_l3_add_ipato_entry(struct qeth_card *card,
749 struct qeth_ipato_entry *new)
751 struct qeth_ipato_entry *ipatoe;
755 QETH_CARD_TEXT(card, 2, "addipato");
756 spin_lock_irqsave(&card->ip_lock, flags);
757 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
758 if (ipatoe->proto != new->proto)
760 if (!memcmp(ipatoe->addr, new->addr,
761 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
762 (ipatoe->mask_bits == new->mask_bits)) {
768 list_add_tail(&new->entry, &card->ipato.entries);
770 spin_unlock_irqrestore(&card->ip_lock, flags);
774 void qeth_l3_del_ipato_entry(struct qeth_card *card,
775 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
777 struct qeth_ipato_entry *ipatoe, *tmp;
780 QETH_CARD_TEXT(card, 2, "delipato");
781 spin_lock_irqsave(&card->ip_lock, flags);
782 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
783 if (ipatoe->proto != proto)
785 if (!memcmp(ipatoe->addr, addr,
786 (proto == QETH_PROT_IPV4)? 4:16) &&
787 (ipatoe->mask_bits == mask_bits)) {
788 list_del(&ipatoe->entry);
792 spin_unlock_irqrestore(&card->ip_lock, flags);
796 * VIPA related functions
798 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
801 struct qeth_ipaddr *ipaddr;
805 ipaddr = qeth_l3_get_addr_buffer(proto);
807 if (proto == QETH_PROT_IPV4) {
808 QETH_CARD_TEXT(card, 2, "addvipa4");
809 memcpy(&ipaddr->u.a4.addr, addr, 4);
810 ipaddr->u.a4.mask = 0;
811 } else if (proto == QETH_PROT_IPV6) {
812 QETH_CARD_TEXT(card, 2, "addvipa6");
813 memcpy(&ipaddr->u.a6.addr, addr, 16);
814 ipaddr->u.a6.pfxlen = 0;
816 ipaddr->type = QETH_IP_TYPE_VIPA;
817 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
818 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
821 spin_lock_irqsave(&card->ip_lock, flags);
822 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
823 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
825 spin_unlock_irqrestore(&card->ip_lock, flags);
829 if (!qeth_l3_add_ip(card, ipaddr))
831 qeth_l3_set_ip_addr_list(card);
835 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
838 struct qeth_ipaddr *ipaddr;
840 ipaddr = qeth_l3_get_addr_buffer(proto);
842 if (proto == QETH_PROT_IPV4) {
843 QETH_CARD_TEXT(card, 2, "delvipa4");
844 memcpy(&ipaddr->u.a4.addr, addr, 4);
845 ipaddr->u.a4.mask = 0;
846 } else if (proto == QETH_PROT_IPV6) {
847 QETH_CARD_TEXT(card, 2, "delvipa6");
848 memcpy(&ipaddr->u.a6.addr, addr, 16);
849 ipaddr->u.a6.pfxlen = 0;
851 ipaddr->type = QETH_IP_TYPE_VIPA;
854 if (!qeth_l3_delete_ip(card, ipaddr))
856 qeth_l3_set_ip_addr_list(card);
860 * proxy ARP related functions
862 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
865 struct qeth_ipaddr *ipaddr;
869 ipaddr = qeth_l3_get_addr_buffer(proto);
871 if (proto == QETH_PROT_IPV4) {
872 QETH_CARD_TEXT(card, 2, "addrxip4");
873 memcpy(&ipaddr->u.a4.addr, addr, 4);
874 ipaddr->u.a4.mask = 0;
875 } else if (proto == QETH_PROT_IPV6) {
876 QETH_CARD_TEXT(card, 2, "addrxip6");
877 memcpy(&ipaddr->u.a6.addr, addr, 16);
878 ipaddr->u.a6.pfxlen = 0;
880 ipaddr->type = QETH_IP_TYPE_RXIP;
881 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
882 ipaddr->del_flags = 0;
885 spin_lock_irqsave(&card->ip_lock, flags);
886 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
887 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
889 spin_unlock_irqrestore(&card->ip_lock, flags);
893 if (!qeth_l3_add_ip(card, ipaddr))
895 qeth_l3_set_ip_addr_list(card);
899 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
902 struct qeth_ipaddr *ipaddr;
904 ipaddr = qeth_l3_get_addr_buffer(proto);
906 if (proto == QETH_PROT_IPV4) {
907 QETH_CARD_TEXT(card, 2, "addrxip4");
908 memcpy(&ipaddr->u.a4.addr, addr, 4);
909 ipaddr->u.a4.mask = 0;
910 } else if (proto == QETH_PROT_IPV6) {
911 QETH_CARD_TEXT(card, 2, "addrxip6");
912 memcpy(&ipaddr->u.a6.addr, addr, 16);
913 ipaddr->u.a6.pfxlen = 0;
915 ipaddr->type = QETH_IP_TYPE_RXIP;
918 if (!qeth_l3_delete_ip(card, ipaddr))
920 qeth_l3_set_ip_addr_list(card);
923 static int qeth_l3_register_addr_entry(struct qeth_card *card,
924 struct qeth_ipaddr *addr)
930 if (addr->proto == QETH_PROT_IPV4) {
931 QETH_CARD_TEXT(card, 2, "setaddr4");
932 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
933 } else if (addr->proto == QETH_PROT_IPV6) {
934 QETH_CARD_TEXT(card, 2, "setaddr6");
935 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
936 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
938 QETH_CARD_TEXT(card, 2, "setaddr?");
939 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
942 if (addr->is_multicast)
943 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
945 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
948 QETH_CARD_TEXT(card, 2, "failed");
949 } while ((--cnt > 0) && rc);
951 QETH_CARD_TEXT(card, 2, "FAILED");
952 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
953 dev_warn(&card->gdev->dev,
954 "Registering IP address %s failed\n", buf);
959 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
960 struct qeth_ipaddr *addr)
964 if (addr->proto == QETH_PROT_IPV4) {
965 QETH_CARD_TEXT(card, 2, "deladdr4");
966 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
967 } else if (addr->proto == QETH_PROT_IPV6) {
968 QETH_CARD_TEXT(card, 2, "deladdr6");
969 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
970 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
972 QETH_CARD_TEXT(card, 2, "deladdr?");
973 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
975 if (addr->is_multicast)
976 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
978 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
981 QETH_CARD_TEXT(card, 2, "failed");
986 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
988 if (cast_type == RTN_MULTICAST)
989 return QETH_CAST_MULTICAST;
990 if (cast_type == RTN_BROADCAST)
991 return QETH_CAST_BROADCAST;
992 return QETH_CAST_UNICAST;
995 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
997 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
998 if (cast_type == RTN_MULTICAST)
999 return ct | QETH_CAST_MULTICAST;
1000 if (cast_type == RTN_ANYCAST)
1001 return ct | QETH_CAST_ANYCAST;
1002 if (cast_type == RTN_BROADCAST)
1003 return ct | QETH_CAST_BROADCAST;
1004 return ct | QETH_CAST_UNICAST;
1007 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
1011 struct qeth_cmd_buffer *iob;
1012 struct qeth_ipa_cmd *cmd;
1014 QETH_CARD_TEXT(card, 4, "adpmode");
1016 iob = qeth_get_adapter_cmd(card, command,
1017 sizeof(struct qeth_ipacmd_setadpparms));
1018 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1019 cmd->data.setadapterparms.data.mode = mode;
1020 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
1025 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1029 QETH_CARD_TEXT(card, 4, "adphstr");
1031 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1032 rc = qeth_l3_send_setadp_mode(card,
1033 IPA_SETADP_SET_BROADCAST_MODE,
1034 card->options.broadcast_mode);
1036 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1038 CARD_BUS_ID(card), rc);
1039 rc = qeth_l3_send_setadp_mode(card,
1040 IPA_SETADP_ALTER_MAC_ADDRESS,
1041 card->options.macaddr_mode);
1043 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1044 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1047 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1048 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1049 "to set broadcast mode, using ALLRINGS "
1050 "on device %s:\n", CARD_BUS_ID(card));
1051 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1052 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1053 "to set macaddr mode, using NONCANONICAL "
1054 "on device %s:\n", CARD_BUS_ID(card));
1058 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1062 QETH_DBF_TEXT(SETUP, 2, "setadprm");
1064 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1065 dev_info(&card->gdev->dev,
1066 "set adapter parameters not supported.\n");
1067 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1070 rc = qeth_query_setadapterparms(card);
1072 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1073 "0x%x\n", dev_name(&card->gdev->dev), rc);
1076 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1077 rc = qeth_setadpparms_change_macaddr(card);
1079 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1080 " address failed\n");
1083 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1084 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1085 rc = qeth_l3_setadapter_hstr(card);
1090 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1091 struct qeth_reply *reply, unsigned long data)
1093 struct qeth_ipa_cmd *cmd;
1095 QETH_CARD_TEXT(card, 4, "defadpcb");
1097 cmd = (struct qeth_ipa_cmd *) data;
1098 if (cmd->hdr.return_code == 0) {
1099 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1100 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1101 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1102 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1103 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1105 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1106 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1107 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1108 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1110 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1111 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1112 card->info.tx_csum_mask =
1113 cmd->data.setassparms.data.flags_32bit;
1114 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1120 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1121 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1122 __u16 len, enum qeth_prot_versions prot)
1124 struct qeth_cmd_buffer *iob;
1125 struct qeth_ipa_cmd *cmd;
1127 QETH_CARD_TEXT(card, 4, "getasscm");
1128 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1130 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1131 cmd->data.setassparms.hdr.assist_no = ipa_func;
1132 cmd->data.setassparms.hdr.length = 8 + len;
1133 cmd->data.setassparms.hdr.command_code = cmd_code;
1134 cmd->data.setassparms.hdr.return_code = 0;
1135 cmd->data.setassparms.hdr.seq_no = 0;
1140 static int qeth_l3_send_setassparms(struct qeth_card *card,
1141 struct qeth_cmd_buffer *iob, __u16 len, long data,
1142 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1147 struct qeth_ipa_cmd *cmd;
1149 QETH_CARD_TEXT(card, 4, "sendassp");
1151 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1152 if (len <= sizeof(__u32))
1153 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1154 else /* (len > sizeof(__u32)) */
1155 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1157 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1161 #ifdef CONFIG_QETH_IPV6
1162 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1163 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1166 struct qeth_cmd_buffer *iob;
1168 QETH_CARD_TEXT(card, 4, "simassp6");
1169 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1171 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1172 qeth_l3_default_setassparms_cb, NULL);
1177 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1178 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1182 struct qeth_cmd_buffer *iob;
1184 QETH_CARD_TEXT(card, 4, "simassp4");
1186 length = sizeof(__u32);
1187 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1188 length, QETH_PROT_IPV4);
1189 rc = qeth_l3_send_setassparms(card, iob, length, data,
1190 qeth_l3_default_setassparms_cb, NULL);
1194 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1198 QETH_CARD_TEXT(card, 3, "ipaarp");
1200 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1201 dev_info(&card->gdev->dev,
1202 "ARP processing not supported on %s!\n",
1203 QETH_CARD_IFNAME(card));
1206 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1207 IPA_CMD_ASS_START, 0);
1209 dev_warn(&card->gdev->dev,
1210 "Starting ARP processing support for %s failed\n",
1211 QETH_CARD_IFNAME(card));
1216 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1220 QETH_CARD_TEXT(card, 3, "ipaipfrg");
1222 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1223 dev_info(&card->gdev->dev,
1224 "Hardware IP fragmentation not supported on %s\n",
1225 QETH_CARD_IFNAME(card));
1229 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1230 IPA_CMD_ASS_START, 0);
1232 dev_warn(&card->gdev->dev,
1233 "Starting IP fragmentation support for %s failed\n",
1234 QETH_CARD_IFNAME(card));
1236 dev_info(&card->gdev->dev,
1237 "Hardware IP fragmentation enabled \n");
1241 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1245 QETH_CARD_TEXT(card, 3, "stsrcmac");
1247 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1248 dev_info(&card->gdev->dev,
1249 "Inbound source MAC-address not supported on %s\n",
1250 QETH_CARD_IFNAME(card));
1254 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1255 IPA_CMD_ASS_START, 0);
1257 dev_warn(&card->gdev->dev,
1258 "Starting source MAC-address support for %s failed\n",
1259 QETH_CARD_IFNAME(card));
1263 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1267 QETH_CARD_TEXT(card, 3, "strtvlan");
1269 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1270 dev_info(&card->gdev->dev,
1271 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1275 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1276 IPA_CMD_ASS_START, 0);
1278 dev_warn(&card->gdev->dev,
1279 "Starting VLAN support for %s failed\n",
1280 QETH_CARD_IFNAME(card));
1282 dev_info(&card->gdev->dev, "VLAN enabled\n");
1287 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1291 QETH_CARD_TEXT(card, 3, "stmcast");
1293 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1294 dev_info(&card->gdev->dev,
1295 "Multicast not supported on %s\n",
1296 QETH_CARD_IFNAME(card));
1300 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1301 IPA_CMD_ASS_START, 0);
1303 dev_warn(&card->gdev->dev,
1304 "Starting multicast support for %s failed\n",
1305 QETH_CARD_IFNAME(card));
1307 dev_info(&card->gdev->dev, "Multicast enabled\n");
1308 card->dev->flags |= IFF_MULTICAST;
1313 static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1314 struct qeth_reply *reply, unsigned long data)
1316 struct qeth_ipa_cmd *cmd;
1318 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
1320 cmd = (struct qeth_ipa_cmd *) data;
1321 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1322 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1323 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1325 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1326 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1328 QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1329 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1330 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
1334 static int qeth_l3_query_ipassists(struct qeth_card *card,
1335 enum qeth_prot_versions prot)
1338 struct qeth_cmd_buffer *iob;
1340 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
1341 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1342 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1346 #ifdef CONFIG_QETH_IPV6
1347 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1351 QETH_CARD_TEXT(card, 3, "softipv6");
1353 if (card->info.type == QETH_CARD_TYPE_IQD)
1356 rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1358 dev_err(&card->gdev->dev,
1359 "Activating IPv6 support for %s failed\n",
1360 QETH_CARD_IFNAME(card));
1363 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1364 IPA_CMD_ASS_START, 3);
1366 dev_err(&card->gdev->dev,
1367 "Activating IPv6 support for %s failed\n",
1368 QETH_CARD_IFNAME(card));
1371 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1374 dev_err(&card->gdev->dev,
1375 "Activating IPv6 support for %s failed\n",
1376 QETH_CARD_IFNAME(card));
1379 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1382 dev_warn(&card->gdev->dev,
1383 "Enabling the passthrough mode for %s failed\n",
1384 QETH_CARD_IFNAME(card));
1388 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1393 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1397 QETH_CARD_TEXT(card, 3, "strtipv6");
1399 if (!qeth_is_supported(card, IPA_IPV6)) {
1400 dev_info(&card->gdev->dev,
1401 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1404 #ifdef CONFIG_QETH_IPV6
1405 rc = qeth_l3_softsetup_ipv6(card);
1410 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1414 QETH_CARD_TEXT(card, 3, "stbrdcst");
1415 card->info.broadcast_capable = 0;
1416 if (!qeth_is_supported(card, IPA_FILTERING)) {
1417 dev_info(&card->gdev->dev,
1418 "Broadcast not supported on %s\n",
1419 QETH_CARD_IFNAME(card));
1423 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1424 IPA_CMD_ASS_START, 0);
1426 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1427 "%s failed\n", QETH_CARD_IFNAME(card));
1431 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1432 IPA_CMD_ASS_CONFIGURE, 1);
1434 dev_warn(&card->gdev->dev,
1435 "Setting up broadcast filtering for %s failed\n",
1436 QETH_CARD_IFNAME(card));
1439 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1440 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1441 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1442 IPA_CMD_ASS_ENABLE, 1);
1444 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1445 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1448 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1450 if (card->info.broadcast_capable)
1451 card->dev->flags |= IFF_BROADCAST;
1453 card->dev->flags &= ~IFF_BROADCAST;
1457 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1461 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1462 IPA_CMD_ASS_START, 0);
1464 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1465 "failed, using SW checksumming\n",
1466 QETH_CARD_IFNAME(card));
1469 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1471 card->info.csum_mask);
1473 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1474 "failed, using SW checksumming\n",
1475 QETH_CARD_IFNAME(card));
1481 int qeth_l3_set_rx_csum(struct qeth_card *card,
1482 enum qeth_checksum_types csum_type)
1486 if (card->options.checksum_type == HW_CHECKSUMMING) {
1487 if ((csum_type != HW_CHECKSUMMING) &&
1488 (card->state != CARD_STATE_DOWN)) {
1489 rc = qeth_l3_send_simple_setassparms(card,
1490 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1495 if (csum_type == HW_CHECKSUMMING) {
1496 if (card->state != CARD_STATE_DOWN) {
1497 if (!qeth_is_supported(card,
1498 IPA_INBOUND_CHECKSUM))
1500 rc = qeth_l3_send_checksum_command(card);
1506 card->options.checksum_type = csum_type;
1510 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1514 QETH_CARD_TEXT(card, 3, "strtcsum");
1516 if (card->options.checksum_type == NO_CHECKSUMMING) {
1517 dev_info(&card->gdev->dev,
1518 "Using no checksumming on %s.\n",
1519 QETH_CARD_IFNAME(card));
1522 if (card->options.checksum_type == SW_CHECKSUMMING) {
1523 dev_info(&card->gdev->dev,
1524 "Using SW checksumming on %s.\n",
1525 QETH_CARD_IFNAME(card));
1528 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
1529 dev_info(&card->gdev->dev,
1530 "Inbound HW Checksumming not "
1531 "supported on %s,\ncontinuing "
1532 "using Inbound SW Checksumming\n",
1533 QETH_CARD_IFNAME(card));
1534 card->options.checksum_type = SW_CHECKSUMMING;
1537 rc = qeth_l3_send_checksum_command(card);
1539 dev_info(&card->gdev->dev,
1540 "HW Checksumming (inbound) enabled\n");
1545 static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1549 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1551 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1552 IPA_CMD_ASS_START, 0);
1555 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1556 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1559 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1562 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1563 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1567 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1571 QETH_CARD_TEXT(card, 3, "sttso");
1573 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1574 dev_info(&card->gdev->dev,
1575 "Outbound TSO not supported on %s\n",
1576 QETH_CARD_IFNAME(card));
1579 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1580 IPA_CMD_ASS_START, 0);
1582 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1583 "segmentation offload for %s failed\n",
1584 QETH_CARD_IFNAME(card));
1586 dev_info(&card->gdev->dev,
1587 "Outbound TSO enabled\n");
1589 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1590 card->options.large_send = QETH_LARGE_SEND_NO;
1591 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1596 static int qeth_l3_start_ipassists(struct qeth_card *card)
1598 QETH_CARD_TEXT(card, 3, "strtipas");
1600 qeth_set_access_ctrl_online(card); /* go on*/
1601 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1602 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1603 qeth_l3_start_ipa_source_mac(card); /* go on*/
1604 qeth_l3_start_ipa_vlan(card); /* go on*/
1605 qeth_l3_start_ipa_multicast(card); /* go on*/
1606 qeth_l3_start_ipa_ipv6(card); /* go on*/
1607 qeth_l3_start_ipa_broadcast(card); /* go on*/
1608 qeth_l3_start_ipa_checksum(card); /* go on*/
1609 qeth_l3_start_ipa_tx_checksum(card);
1610 qeth_l3_start_ipa_tso(card); /* go on*/
1614 static int qeth_l3_put_unique_id(struct qeth_card *card)
1618 struct qeth_cmd_buffer *iob;
1619 struct qeth_ipa_cmd *cmd;
1621 QETH_CARD_TEXT(card, 2, "puniqeid");
1623 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
1624 UNIQUE_ID_NOT_BY_CARD)
1626 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
1628 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1629 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1630 card->info.unique_id;
1631 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
1632 card->dev->dev_addr, OSA_ADDR_LEN);
1633 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
1637 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1638 struct qeth_reply *reply, unsigned long data)
1640 struct qeth_ipa_cmd *cmd;
1642 cmd = (struct qeth_ipa_cmd *) data;
1643 if (cmd->hdr.return_code == 0)
1644 memcpy(card->dev->dev_addr,
1645 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1647 random_ether_addr(card->dev->dev_addr);
1652 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1655 struct qeth_cmd_buffer *iob;
1656 struct qeth_ipa_cmd *cmd;
1658 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1660 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1662 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1663 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1664 card->info.unique_id;
1666 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1671 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1672 struct qeth_reply *reply, unsigned long data)
1674 struct qeth_ipa_cmd *cmd;
1676 cmd = (struct qeth_ipa_cmd *) data;
1677 if (cmd->hdr.return_code == 0)
1678 card->info.unique_id = *((__u16 *)
1679 &cmd->data.create_destroy_addr.unique_id[6]);
1681 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1682 UNIQUE_ID_NOT_BY_CARD;
1683 dev_warn(&card->gdev->dev, "The network adapter failed to "
1684 "generate a unique ID\n");
1689 static int qeth_l3_get_unique_id(struct qeth_card *card)
1692 struct qeth_cmd_buffer *iob;
1693 struct qeth_ipa_cmd *cmd;
1695 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1697 if (!qeth_is_supported(card, IPA_IPV6)) {
1698 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1699 UNIQUE_ID_NOT_BY_CARD;
1703 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1705 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1706 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1707 card->info.unique_id;
1709 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1714 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1717 struct qeth_ipa_cmd *cmd;
1720 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1722 cmd = (struct qeth_ipa_cmd *)data;
1723 rc = cmd->hdr.return_code;
1725 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1726 switch (cmd->data.diagass.action) {
1727 case QETH_DIAGS_CMD_TRACE_QUERY:
1729 case QETH_DIAGS_CMD_TRACE_DISABLE:
1732 case IPA_RC_INVALID_SUBCMD:
1733 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1734 dev_info(&card->gdev->dev, "The HiperSockets network "
1735 "traffic analyzer is deactivated\n");
1741 case QETH_DIAGS_CMD_TRACE_ENABLE:
1744 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1745 dev_info(&card->gdev->dev, "The HiperSockets network "
1746 "traffic analyzer is activated\n");
1748 case IPA_RC_HARDWARE_AUTH_ERROR:
1749 dev_warn(&card->gdev->dev, "The device is not "
1750 "authorized to run as a HiperSockets network "
1751 "traffic analyzer\n");
1753 case IPA_RC_TRACE_ALREADY_ACTIVE:
1754 dev_warn(&card->gdev->dev, "A HiperSockets "
1755 "network traffic analyzer is already "
1756 "active in the HiperSockets LAN\n");
1763 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1764 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1771 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1773 struct qeth_cmd_buffer *iob;
1774 struct qeth_ipa_cmd *cmd;
1776 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1778 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1779 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1780 cmd->data.diagass.subcmd_len = 16;
1781 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1782 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1783 cmd->data.diagass.action = diags_cmd;
1784 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1787 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1788 struct net_device *dev)
1790 if (dev->type == ARPHRD_IEEE802_TR)
1791 ip_tr_mc_map(ipm, mac);
1793 ip_eth_mc_map(ipm, mac);
1796 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1798 struct qeth_ipaddr *ipm;
1799 struct ip_mc_list *im4;
1800 char buf[MAX_ADDR_LEN];
1802 QETH_CARD_TEXT(card, 4, "addmc");
1803 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1804 im4 = rcu_dereference(im4->next_rcu)) {
1805 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1806 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1809 ipm->u.a4.addr = im4->multiaddr;
1810 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1811 ipm->is_multicast = 1;
1812 if (!qeth_l3_add_ip(card, ipm))
1817 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1819 struct in_device *in_dev;
1820 struct vlan_group *vg;
1823 QETH_CARD_TEXT(card, 4, "addmcvl");
1824 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1828 for (i = 0; i < VLAN_N_VID; i++) {
1829 struct net_device *netdev = vlan_group_get_device(vg, i);
1830 if (netdev == NULL ||
1831 !(netdev->flags & IFF_UP))
1833 in_dev = in_dev_get(netdev);
1837 qeth_l3_add_mc(card, in_dev);
1843 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1845 struct in_device *in4_dev;
1847 QETH_CARD_TEXT(card, 4, "chkmcv4");
1848 in4_dev = in_dev_get(card->dev);
1849 if (in4_dev == NULL)
1852 qeth_l3_add_mc(card, in4_dev);
1853 qeth_l3_add_vlan_mc(card);
1855 in_dev_put(in4_dev);
1858 #ifdef CONFIG_QETH_IPV6
1859 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1861 struct qeth_ipaddr *ipm;
1862 struct ifmcaddr6 *im6;
1863 char buf[MAX_ADDR_LEN];
1865 QETH_CARD_TEXT(card, 4, "addmc6");
1866 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1867 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1868 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1871 ipm->is_multicast = 1;
1872 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1873 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1874 sizeof(struct in6_addr));
1875 if (!qeth_l3_add_ip(card, ipm))
1880 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1882 struct inet6_dev *in_dev;
1883 struct vlan_group *vg;
1886 QETH_CARD_TEXT(card, 4, "admc6vl");
1887 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1891 for (i = 0; i < VLAN_N_VID; i++) {
1892 struct net_device *netdev = vlan_group_get_device(vg, i);
1893 if (netdev == NULL ||
1894 !(netdev->flags & IFF_UP))
1896 in_dev = in6_dev_get(netdev);
1899 read_lock_bh(&in_dev->lock);
1900 qeth_l3_add_mc6(card, in_dev);
1901 read_unlock_bh(&in_dev->lock);
1902 in6_dev_put(in_dev);
1906 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1908 struct inet6_dev *in6_dev;
1910 QETH_CARD_TEXT(card, 4, "chkmcv6");
1911 if (!qeth_is_supported(card, IPA_IPV6))
1913 in6_dev = in6_dev_get(card->dev);
1914 if (in6_dev == NULL)
1916 read_lock_bh(&in6_dev->lock);
1917 qeth_l3_add_mc6(card, in6_dev);
1918 qeth_l3_add_vlan_mc6(card);
1919 read_unlock_bh(&in6_dev->lock);
1920 in6_dev_put(in6_dev);
1922 #endif /* CONFIG_QETH_IPV6 */
1924 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1927 struct in_device *in_dev;
1928 struct in_ifaddr *ifa;
1929 struct qeth_ipaddr *addr;
1931 QETH_CARD_TEXT(card, 4, "frvaddr4");
1933 in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1936 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1937 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1939 addr->u.a4.addr = ifa->ifa_address;
1940 addr->u.a4.mask = ifa->ifa_mask;
1941 addr->type = QETH_IP_TYPE_NORMAL;
1942 if (!qeth_l3_delete_ip(card, addr))
1949 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1952 #ifdef CONFIG_QETH_IPV6
1953 struct inet6_dev *in6_dev;
1954 struct inet6_ifaddr *ifa;
1955 struct qeth_ipaddr *addr;
1957 QETH_CARD_TEXT(card, 4, "frvaddr6");
1959 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1962 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1963 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1965 memcpy(&addr->u.a6.addr, &ifa->addr,
1966 sizeof(struct in6_addr));
1967 addr->u.a6.pfxlen = ifa->prefix_len;
1968 addr->type = QETH_IP_TYPE_NORMAL;
1969 if (!qeth_l3_delete_ip(card, addr))
1973 in6_dev_put(in6_dev);
1974 #endif /* CONFIG_QETH_IPV6 */
1977 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1982 qeth_l3_free_vlan_addresses4(card, vid);
1983 qeth_l3_free_vlan_addresses6(card, vid);
1986 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1987 struct vlan_group *grp)
1989 struct qeth_card *card = dev->ml_priv;
1990 unsigned long flags;
1992 QETH_CARD_TEXT(card, 4, "vlanreg");
1993 spin_lock_irqsave(&card->vlanlock, flags);
1994 card->vlangrp = grp;
1995 spin_unlock_irqrestore(&card->vlanlock, flags);
1998 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
2003 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
2005 struct qeth_card *card = dev->ml_priv;
2006 unsigned long flags;
2008 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
2009 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2010 QETH_CARD_TEXT(card, 3, "kidREC");
2013 spin_lock_irqsave(&card->vlanlock, flags);
2014 /* unregister IP addresses of vlan device */
2015 qeth_l3_free_vlan_addresses(card, vid);
2016 vlan_group_set_device(card->vlangrp, vid, NULL);
2017 spin_unlock_irqrestore(&card->vlanlock, flags);
2018 qeth_l3_set_multicast_list(card->dev);
2021 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
2022 struct sk_buff *skb, struct qeth_hdr *hdr,
2023 unsigned short *vlan_id)
2026 struct iphdr *ip_hdr;
2027 unsigned char tg_addr[MAX_ADDR_LEN];
2030 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
2031 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2033 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
2034 case QETH_CAST_MULTICAST:
2036 #ifdef CONFIG_QETH_IPV6
2037 case __constant_htons(ETH_P_IPV6):
2038 ndisc_mc_map((struct in6_addr *)
2040 tg_addr, card->dev, 0);
2043 case __constant_htons(ETH_P_IP):
2044 ip_hdr = (struct iphdr *)skb->data;
2045 (card->dev->type == ARPHRD_IEEE802_TR) ?
2046 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
2047 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
2050 memcpy(tg_addr, card->dev->broadcast,
2051 card->dev->addr_len);
2053 card->stats.multicast++;
2054 skb->pkt_type = PACKET_MULTICAST;
2056 case QETH_CAST_BROADCAST:
2057 memcpy(tg_addr, card->dev->broadcast,
2058 card->dev->addr_len);
2059 card->stats.multicast++;
2060 skb->pkt_type = PACKET_BROADCAST;
2062 case QETH_CAST_UNICAST:
2063 case QETH_CAST_ANYCAST:
2064 case QETH_CAST_NOCAST:
2066 if (card->options.sniffer)
2067 skb->pkt_type = PACKET_OTHERHOST;
2069 skb->pkt_type = PACKET_HOST;
2070 memcpy(tg_addr, card->dev->dev_addr,
2071 card->dev->addr_len);
2073 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2074 card->dev->header_ops->create(skb, card->dev, prot,
2075 tg_addr, &hdr->hdr.l3.dest_addr[2],
2076 card->dev->addr_len);
2078 card->dev->header_ops->create(skb, card->dev, prot,
2079 tg_addr, "FAKELL", card->dev->addr_len);
2083 if (card->dev->type == ARPHRD_IEEE802_TR)
2084 skb->protocol = tr_type_trans(skb, card->dev);
2087 skb->protocol = eth_type_trans(skb, card->dev);
2089 if (hdr->hdr.l3.ext_flags &
2090 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2091 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
2092 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2096 switch (card->options.checksum_type) {
2097 case SW_CHECKSUMMING:
2098 skb->ip_summed = CHECKSUM_NONE;
2100 case NO_CHECKSUMMING:
2101 skb->ip_summed = CHECKSUM_UNNECESSARY;
2103 case HW_CHECKSUMMING:
2104 if ((hdr->hdr.l3.ext_flags &
2105 (QETH_HDR_EXT_CSUM_HDR_REQ |
2106 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2107 (QETH_HDR_EXT_CSUM_HDR_REQ |
2108 QETH_HDR_EXT_CSUM_TRANSP_REQ))
2109 skb->ip_summed = CHECKSUM_UNNECESSARY;
2111 skb->ip_summed = CHECKSUM_NONE;
2117 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
2118 int budget, int *done)
2121 struct sk_buff *skb;
2122 struct qeth_hdr *hdr;
2130 skb = qeth_core_get_next_skb(card,
2131 card->qdio.in_q->bufs[card->rx.b_index].buffer,
2132 &card->rx.b_element, &card->rx.e_offset, &hdr);
2137 skb->dev = card->dev;
2138 switch (hdr->hdr.l3.id) {
2139 case QETH_HEADER_TYPE_LAYER3:
2140 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
2143 if (is_vlan && !card->options.sniffer)
2144 vlan_gro_receive(&card->napi, card->vlangrp,
2147 napi_gro_receive(&card->napi, skb);
2149 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2150 skb->pkt_type = PACKET_HOST;
2151 skb->protocol = eth_type_trans(skb, skb->dev);
2153 netif_receive_skb(skb);
2156 dev_kfree_skb_any(skb);
2157 QETH_CARD_TEXT(card, 3, "inbunkno");
2158 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2163 card->stats.rx_packets++;
2164 card->stats.rx_bytes += len;
2169 static int qeth_l3_poll(struct napi_struct *napi, int budget)
2171 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2173 struct qeth_qdio_buffer *buffer;
2175 int new_budget = budget;
2177 if (card->options.performance_stats) {
2178 card->perf_stats.inbound_cnt++;
2179 card->perf_stats.inbound_start_time = qeth_get_micros();
2183 if (!card->rx.b_count) {
2184 card->rx.qdio_err = 0;
2185 card->rx.b_count = qdio_get_next_buffers(
2186 card->data.ccwdev, 0, &card->rx.b_index,
2187 &card->rx.qdio_err);
2188 if (card->rx.b_count <= 0) {
2189 card->rx.b_count = 0;
2192 card->rx.b_element =
2193 &card->qdio.in_q->bufs[card->rx.b_index]
2194 .buffer->element[0];
2195 card->rx.e_offset = 0;
2198 while (card->rx.b_count) {
2199 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2200 if (!(card->rx.qdio_err &&
2201 qeth_check_qdio_errors(card, buffer->buffer,
2202 card->rx.qdio_err, "qinerr")))
2203 work_done += qeth_l3_process_inbound_buffer(
2204 card, new_budget, &done);
2209 if (card->options.performance_stats)
2210 card->perf_stats.bufs_rec++;
2211 qeth_put_buffer_pool_entry(card,
2212 buffer->pool_entry);
2213 qeth_queue_input_buffer(card, card->rx.b_index);
2215 if (card->rx.b_count) {
2217 (card->rx.b_index + 1) %
2218 QDIO_MAX_BUFFERS_PER_Q;
2219 card->rx.b_element =
2221 ->bufs[card->rx.b_index]
2222 .buffer->element[0];
2223 card->rx.e_offset = 0;
2227 if (work_done >= budget)
2230 new_budget = budget - work_done;
2234 napi_complete(napi);
2235 if (qdio_start_irq(card->data.ccwdev, 0))
2236 napi_schedule(&card->napi);
2238 if (card->options.performance_stats)
2239 card->perf_stats.inbound_time += qeth_get_micros() -
2240 card->perf_stats.inbound_start_time;
2244 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2245 struct qeth_card *card)
2248 struct vlan_group *vg;
2255 for (i = 0; i < VLAN_N_VID; i++) {
2256 if (vlan_group_get_device(vg, i) == dev) {
2257 rc = QETH_VLAN_CARD;
2262 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2268 static int qeth_l3_verify_dev(struct net_device *dev)
2270 struct qeth_card *card;
2271 unsigned long flags;
2274 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2275 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2276 if (card->dev == dev) {
2277 rc = QETH_REAL_CARD;
2280 rc = qeth_l3_verify_vlan_dev(dev, card);
2284 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2289 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2291 struct qeth_card *card = NULL;
2294 rc = qeth_l3_verify_dev(dev);
2295 if (rc == QETH_REAL_CARD)
2296 card = dev->ml_priv;
2297 else if (rc == QETH_VLAN_CARD)
2298 card = vlan_dev_real_dev(dev)->ml_priv;
2299 if (card && card->options.layer2)
2302 QETH_CARD_TEXT_(card, 4, "%d", rc);
2306 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2310 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2311 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2313 qeth_set_allowed_threads(card, 0, 1);
2314 if (card->options.sniffer &&
2315 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2316 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2317 if (card->read.state == CH_STATE_UP &&
2318 card->write.state == CH_STATE_UP &&
2319 (card->state == CARD_STATE_UP)) {
2321 qeth_l3_stop(card->dev);
2324 dev_close(card->dev);
2327 if (!card->use_hard_stop) {
2328 rc = qeth_send_stoplan(card);
2330 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2332 card->state = CARD_STATE_SOFTSETUP;
2334 if (card->state == CARD_STATE_SOFTSETUP) {
2335 qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
2336 qeth_clear_ipacmd_list(card);
2337 card->state = CARD_STATE_HARDSETUP;
2339 if (card->state == CARD_STATE_HARDSETUP) {
2340 if (!card->use_hard_stop &&
2341 (card->info.type != QETH_CARD_TYPE_IQD)) {
2342 rc = qeth_l3_put_unique_id(card);
2344 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2346 qeth_qdio_clear_card(card, 0);
2347 qeth_clear_qdio_buffers(card);
2348 qeth_clear_working_pool_list(card);
2349 card->state = CARD_STATE_DOWN;
2351 if (card->state == CARD_STATE_DOWN) {
2352 qeth_clear_cmd_buffers(&card->read);
2353 qeth_clear_cmd_buffers(&card->write);
2355 card->use_hard_stop = 0;
2360 * test for and Switch promiscuous mode (on or off)
2361 * either for guestlan or HiperSocket Sniffer
2364 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2366 struct net_device *dev = card->dev;
2368 if (((dev->flags & IFF_PROMISC) &&
2369 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2370 (!(dev->flags & IFF_PROMISC) &&
2371 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2374 if (card->info.guestlan) { /* Guestlan trace */
2375 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2376 qeth_setadp_promisc_mode(card);
2377 } else if (card->options.sniffer && /* HiperSockets trace */
2378 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2379 if (dev->flags & IFF_PROMISC) {
2380 QETH_CARD_TEXT(card, 3, "+promisc");
2381 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2383 QETH_CARD_TEXT(card, 3, "-promisc");
2384 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2389 static void qeth_l3_set_multicast_list(struct net_device *dev)
2391 struct qeth_card *card = dev->ml_priv;
2393 QETH_CARD_TEXT(card, 3, "setmulti");
2394 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2395 (card->state != CARD_STATE_UP))
2397 if (!card->options.sniffer) {
2398 qeth_l3_delete_mc_addresses(card);
2399 qeth_l3_add_multicast_ipv4(card);
2400 #ifdef CONFIG_QETH_IPV6
2401 qeth_l3_add_multicast_ipv6(card);
2403 qeth_l3_set_ip_addr_list(card);
2404 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2407 qeth_l3_handle_promisc_mode(card);
2410 static const char *qeth_l3_arp_get_error_cause(int *rc)
2413 case QETH_IPA_ARP_RC_FAILED:
2415 return "operation failed";
2416 case QETH_IPA_ARP_RC_NOTSUPP:
2418 return "operation not supported";
2419 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2421 return "argument out of range";
2422 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2424 return "query operation not supported";
2425 case QETH_IPA_ARP_RC_Q_NO_DATA:
2427 return "no query data available";
2429 return "unknown error";
2433 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2438 QETH_CARD_TEXT(card, 3, "arpstnoe");
2441 * currently GuestLAN only supports the ARP assist function
2442 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2443 * thus we say EOPNOTSUPP for this ARP function
2445 if (card->info.guestlan)
2447 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2450 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2451 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2455 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2456 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2457 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2462 static __u32 get_arp_entry_size(struct qeth_card *card,
2463 struct qeth_arp_query_data *qdata,
2464 struct qeth_arp_entrytype *type, __u8 strip_entries)
2469 is_hsi = qdata->reply_bits == 5;
2470 if (type->ip == QETHARP_IP_ADDR_V4) {
2471 QETH_CARD_TEXT(card, 4, "arpev4");
2472 if (strip_entries) {
2473 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2474 sizeof(struct qeth_arp_qi_entry7_short);
2476 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2477 sizeof(struct qeth_arp_qi_entry7);
2479 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2480 QETH_CARD_TEXT(card, 4, "arpev6");
2481 if (strip_entries) {
2483 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2484 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2487 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2488 sizeof(struct qeth_arp_qi_entry7_ipv6);
2491 QETH_CARD_TEXT(card, 4, "arpinv");
2498 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2500 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2501 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2504 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2505 struct qeth_reply *reply, unsigned long data)
2507 struct qeth_ipa_cmd *cmd;
2508 struct qeth_arp_query_data *qdata;
2509 struct qeth_arp_query_info *qinfo;
2512 int entrybytes_done;
2514 __u8 do_strip_entries;
2516 QETH_CARD_TEXT(card, 3, "arpquecb");
2518 qinfo = (struct qeth_arp_query_info *) reply->param;
2519 cmd = (struct qeth_ipa_cmd *) data;
2520 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2521 if (cmd->hdr.return_code) {
2522 QETH_CARD_TEXT(card, 4, "arpcberr");
2523 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2526 if (cmd->data.setassparms.hdr.return_code) {
2527 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2528 QETH_CARD_TEXT(card, 4, "setaperr");
2529 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2532 qdata = &cmd->data.setassparms.data.query_arp;
2533 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2535 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2536 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2537 entrybytes_done = 0;
2538 for (e = 0; e < qdata->no_entries; ++e) {
2541 struct qeth_arp_entrytype *etype;
2543 cur_entry = &qdata->data + entrybytes_done;
2544 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2545 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2546 QETH_CARD_TEXT(card, 4, "pmis");
2547 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2550 esize = get_arp_entry_size(card, qdata, etype,
2552 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2556 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2557 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2558 cmd->hdr.return_code = -ENOMEM;
2562 memcpy(qinfo->udata + qinfo->udata_offset,
2563 &qdata->data + entrybytes_done + stripped_bytes,
2565 entrybytes_done += esize + stripped_bytes;
2566 qinfo->udata_offset += esize;
2567 ++qinfo->no_entries;
2569 /* check if all replies received ... */
2570 if (cmd->data.setassparms.hdr.seq_no <
2571 cmd->data.setassparms.hdr.number_of_replies)
2573 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2574 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2575 /* keep STRIP_ENTRIES flag so the user program can distinguish
2576 * stripped entries from normal ones */
2577 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2578 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2579 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2580 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2584 memcpy(qinfo->udata, &i, 4);
2588 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2589 struct qeth_cmd_buffer *iob, int len,
2590 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2594 QETH_CARD_TEXT(card, 4, "sendarp");
2596 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2597 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2598 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2599 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2600 reply_cb, reply_param);
2603 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2604 enum qeth_prot_versions prot,
2605 struct qeth_arp_query_info *qinfo)
2607 struct qeth_cmd_buffer *iob;
2608 struct qeth_ipa_cmd *cmd;
2612 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2614 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2615 IPA_CMD_ASS_ARP_QUERY_INFO,
2616 sizeof(struct qeth_arp_query_data) - sizeof(char),
2618 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2619 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2620 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2621 cmd->data.setassparms.data.query_arp.no_entries = 0;
2622 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2623 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2624 qeth_l3_arp_query_cb, (void *)qinfo);
2628 "Error while querying ARP cache on %s: %s "
2629 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2630 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2636 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2638 struct qeth_arp_query_info qinfo = {0, };
2641 QETH_CARD_TEXT(card, 3, "arpquery");
2643 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2644 IPA_ARP_PROCESSING)) {
2645 QETH_CARD_TEXT(card, 3, "arpqnsup");
2649 /* get size of userspace buffer and mask_bits -> 6 bytes */
2650 if (copy_from_user(&qinfo, udata, 6)) {
2654 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2659 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2660 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2662 if (copy_to_user(udata, qinfo.udata, 4))
2666 #ifdef CONFIG_QETH_IPV6
2667 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2668 /* fails in case of GuestLAN QDIO mode */
2669 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2673 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2674 QETH_CARD_TEXT(card, 4, "qactf");
2678 QETH_CARD_TEXT_(card, 4, "qacts");
2686 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2687 struct qeth_arp_cache_entry *entry)
2689 struct qeth_cmd_buffer *iob;
2694 QETH_CARD_TEXT(card, 3, "arpadent");
2697 * currently GuestLAN only supports the ARP assist function
2698 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2699 * thus we say EOPNOTSUPP for this ARP function
2701 if (card->info.guestlan)
2703 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2707 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2708 IPA_CMD_ASS_ARP_ADD_ENTRY,
2709 sizeof(struct qeth_arp_cache_entry),
2711 rc = qeth_l3_send_setassparms(card, iob,
2712 sizeof(struct qeth_arp_cache_entry),
2713 (unsigned long) entry,
2714 qeth_l3_default_setassparms_cb, NULL);
2717 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2718 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2719 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2720 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2725 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2726 struct qeth_arp_cache_entry *entry)
2728 struct qeth_cmd_buffer *iob;
2729 char buf[16] = {0, };
2733 QETH_CARD_TEXT(card, 3, "arprment");
2736 * currently GuestLAN only supports the ARP assist function
2737 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2738 * thus we say EOPNOTSUPP for this ARP function
2740 if (card->info.guestlan)
2742 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2745 memcpy(buf, entry, 12);
2746 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2747 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2750 rc = qeth_l3_send_setassparms(card, iob,
2751 12, (unsigned long)buf,
2752 qeth_l3_default_setassparms_cb, NULL);
2756 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2757 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2758 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2759 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2764 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2769 QETH_CARD_TEXT(card, 3, "arpflush");
2772 * currently GuestLAN only supports the ARP assist function
2773 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2774 * thus we say EOPNOTSUPP for this ARP function
2776 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2778 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2781 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2782 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2785 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2786 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2787 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2792 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2794 struct qeth_card *card = dev->ml_priv;
2795 struct qeth_arp_cache_entry arp_entry;
2796 struct mii_ioctl_data *mii_data;
2802 if ((card->state != CARD_STATE_UP) &&
2803 (card->state != CARD_STATE_SOFTSETUP))
2807 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2808 if (!capable(CAP_NET_ADMIN)) {
2812 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2814 case SIOC_QETH_ARP_QUERY_INFO:
2815 if (!capable(CAP_NET_ADMIN)) {
2819 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2821 case SIOC_QETH_ARP_ADD_ENTRY:
2822 if (!capable(CAP_NET_ADMIN)) {
2826 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2827 sizeof(struct qeth_arp_cache_entry)))
2830 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2832 case SIOC_QETH_ARP_REMOVE_ENTRY:
2833 if (!capable(CAP_NET_ADMIN)) {
2837 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2838 sizeof(struct qeth_arp_cache_entry)))
2841 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2843 case SIOC_QETH_ARP_FLUSH_CACHE:
2844 if (!capable(CAP_NET_ADMIN)) {
2848 rc = qeth_l3_arp_flush_cache(card);
2850 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2851 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2853 case SIOC_QETH_GET_CARD_TYPE:
2854 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2855 card->info.type == QETH_CARD_TYPE_OSX) &&
2856 !card->info.guestlan)
2861 mii_data = if_mii(rq);
2862 mii_data->phy_id = 0;
2865 mii_data = if_mii(rq);
2866 if (mii_data->phy_id != 0)
2869 mii_data->val_out = qeth_mdio_read(dev,
2877 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2881 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2883 int cast_type = RTN_UNSPEC;
2885 if (skb_dst(skb) && skb_dst(skb)->neighbour) {
2886 cast_type = skb_dst(skb)->neighbour->type;
2887 if ((cast_type == RTN_BROADCAST) ||
2888 (cast_type == RTN_MULTICAST) ||
2889 (cast_type == RTN_ANYCAST))
2894 /* try something else */
2895 if (skb->protocol == ETH_P_IPV6)
2896 return (skb_network_header(skb)[24] == 0xff) ?
2898 else if (skb->protocol == ETH_P_IP)
2899 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2902 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2903 return RTN_BROADCAST;
2907 hdr_mac = *((u16 *)skb->data);
2909 switch (card->info.link_type) {
2910 case QETH_LINK_TYPE_HSTR:
2911 case QETH_LINK_TYPE_LANE_TR:
2912 if ((hdr_mac == QETH_TR_MAC_NC) ||
2913 (hdr_mac == QETH_TR_MAC_C))
2914 return RTN_MULTICAST;
2916 /* eth or so multicast? */
2918 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2919 (hdr_mac == QETH_ETH_MAC_V6))
2920 return RTN_MULTICAST;
2926 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2927 struct sk_buff *skb, int ipv, int cast_type)
2929 memset(hdr, 0, sizeof(struct qeth_hdr));
2930 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2931 hdr->hdr.l3.ext_flags = 0;
2934 * before we're going to overwrite this location with next hop ip.
2935 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2937 if (card->vlangrp && vlan_tx_tag_present(skb)) {
2938 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2939 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2941 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2942 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2945 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2948 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2949 memset(hdr->hdr.l3.dest_addr, 0, 12);
2950 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2951 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2952 *((u32 *) skb_dst(skb)->neighbour->primary_key);
2954 /* fill in destination address used in ip header */
2955 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2958 } else if (ipv == 6) {
2960 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2961 if (card->info.type == QETH_CARD_TYPE_IQD)
2962 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2963 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2964 memcpy(hdr->hdr.l3.dest_addr,
2965 skb_dst(skb)->neighbour->primary_key, 16);
2967 /* fill in destination address used in ip header */
2968 memcpy(hdr->hdr.l3.dest_addr,
2969 &ipv6_hdr(skb)->daddr, 16);
2973 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2974 !memcmp(skb->data + sizeof(struct qeth_hdr) +
2975 sizeof(__u16), skb->dev->broadcast, 6)) {
2976 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2978 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2979 skb->dev->broadcast, 6)) {
2981 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2984 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2985 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2986 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2991 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2992 struct qeth_hdr *hdr, struct sk_buff *skb)
2994 struct iphdr *iph = ip_hdr(skb);
2996 /* tcph->check contains already the pseudo hdr checksum
2997 * so just set the header flags
2999 if (iph->protocol == IPPROTO_UDP)
3000 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
3001 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
3002 if (card->options.performance_stats)
3003 card->perf_stats.tx_csum++;
3006 static void qeth_tso_fill_header(struct qeth_card *card,
3007 struct qeth_hdr *qhdr, struct sk_buff *skb)
3009 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
3010 struct tcphdr *tcph = tcp_hdr(skb);
3011 struct iphdr *iph = ip_hdr(skb);
3012 struct ipv6hdr *ip6h = ipv6_hdr(skb);
3014 /*fix header to TSO values ...*/
3015 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
3016 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
3017 /*set values which are fix for the first approach ...*/
3018 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
3019 hdr->ext.imb_hdr_no = 1;
3020 hdr->ext.hdr_type = 1;
3021 hdr->ext.hdr_version = 1;
3022 hdr->ext.hdr_len = 28;
3023 /*insert non-fix values */
3024 hdr->ext.mss = skb_shinfo(skb)->gso_size;
3025 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
3026 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
3027 sizeof(struct qeth_hdr_tso));
3029 if (skb->protocol == ETH_P_IPV6) {
3030 ip6h->payload_len = 0;
3031 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
3034 /*OSA want us to set these values ...*/
3035 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
3042 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
3044 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
3045 tcp_hdr(skb)->doff * 4;
3046 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
3047 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
3048 elements += skb_shinfo(skb)->nr_frags;
3052 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3056 struct qeth_hdr *hdr = NULL;
3057 int elements_needed = 0;
3059 struct qeth_card *card = dev->ml_priv;
3060 struct sk_buff *new_skb = NULL;
3061 int ipv = qeth_get_ip_version(skb);
3062 int cast_type = qeth_l3_get_cast_type(card, skb);
3063 struct qeth_qdio_out_q *queue = card->qdio.out_qs
3064 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
3065 int tx_bytes = skb->len;
3066 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
3067 int data_offset = -1;
3070 if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
3071 card->options.sniffer)
3074 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3075 card->stats.tx_carrier_errors++;
3079 if ((cast_type == RTN_BROADCAST) &&
3080 (card->info.broadcast_capable == 0))
3083 if (card->options.performance_stats) {
3084 card->perf_stats.outbound_cnt++;
3085 card->perf_stats.outbound_start_time = qeth_get_micros();
3088 if (skb_is_gso(skb))
3089 large_send = card->options.large_send;
3091 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
3092 (skb_shinfo(skb)->nr_frags == 0)) {
3094 data_offset = ETH_HLEN;
3095 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3100 /* create a clone with writeable headroom */
3101 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
3107 if (card->info.type == QETH_CARD_TYPE_IQD) {
3108 if (data_offset < 0)
3109 skb_pull(new_skb, ETH_HLEN);
3112 if (card->dev->type == ARPHRD_IEEE802_TR)
3113 skb_pull(new_skb, TR_HLEN);
3115 skb_pull(new_skb, ETH_HLEN);
3118 if (ipv != 4 && card->vlangrp &&
3119 vlan_tx_tag_present(new_skb)) {
3120 skb_push(new_skb, VLAN_HLEN);
3121 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
3122 skb_copy_to_linear_data_offset(new_skb, 4,
3123 new_skb->data + 8, 4);
3124 skb_copy_to_linear_data_offset(new_skb, 8,
3125 new_skb->data + 12, 4);
3126 tag = (u16 *)(new_skb->data + 12);
3127 *tag = __constant_htons(ETH_P_8021Q);
3128 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
3129 new_skb->vlan_tci = 0;
3133 netif_stop_queue(dev);
3135 /* fix hardware limitation: as long as we do not have sbal
3136 * chaining we can not send long frag lists
3138 if (large_send == QETH_LARGE_SEND_TSO) {
3139 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3140 if (skb_linearize(new_skb))
3142 if (card->options.performance_stats)
3143 card->perf_stats.tx_lin++;
3147 if ((large_send == QETH_LARGE_SEND_TSO) &&
3148 (cast_type == RTN_UNSPEC)) {
3149 hdr = (struct qeth_hdr *)skb_push(new_skb,
3150 sizeof(struct qeth_hdr_tso));
3151 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3152 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3153 qeth_tso_fill_header(card, hdr, new_skb);
3156 if (data_offset < 0) {
3157 hdr = (struct qeth_hdr *)skb_push(new_skb,
3158 sizeof(struct qeth_hdr));
3159 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3162 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3164 hdr->hdr.l3.length = new_skb->len - data_offset;
3167 if (skb->ip_summed == CHECKSUM_PARTIAL)
3168 qeth_l3_hdr_csum(card, hdr, new_skb);
3171 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3174 if (data_offset >= 0)
3175 kmem_cache_free(qeth_core_header_cache, hdr);
3178 elements_needed += elems;
3179 nr_frags = skb_shinfo(new_skb)->nr_frags;
3181 if (card->info.type != QETH_CARD_TYPE_IQD) {
3183 if (large_send == QETH_LARGE_SEND_TSO)
3184 len = ((unsigned long)tcp_hdr(new_skb) +
3185 tcp_hdr(new_skb)->doff * 4) -
3186 (unsigned long)new_skb->data;
3188 len = sizeof(struct qeth_hdr_layer3);
3190 if (qeth_hdr_chk_and_bounce(new_skb, len))
3192 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3195 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3196 elements_needed, data_offset, 0);
3199 card->stats.tx_packets++;
3200 card->stats.tx_bytes += tx_bytes;
3202 dev_kfree_skb_any(skb);
3203 if (card->options.performance_stats) {
3204 if (large_send != QETH_LARGE_SEND_NO) {
3205 card->perf_stats.large_send_bytes += tx_bytes;
3206 card->perf_stats.large_send_cnt++;
3209 card->perf_stats.sg_skbs_sent++;
3210 /* nr_frags + skb->data */
3211 card->perf_stats.sg_frags_sent += nr_frags + 1;
3216 if (data_offset >= 0)
3217 kmem_cache_free(qeth_core_header_cache, hdr);
3221 dev_kfree_skb_any(new_skb);
3222 return NETDEV_TX_BUSY;
3227 netif_wake_queue(dev);
3228 if (card->options.performance_stats)
3229 card->perf_stats.outbound_time += qeth_get_micros() -
3230 card->perf_stats.outbound_start_time;
3234 card->stats.tx_dropped++;
3235 card->stats.tx_errors++;
3236 if ((new_skb != skb) && new_skb)
3237 dev_kfree_skb_any(new_skb);
3238 dev_kfree_skb_any(skb);
3239 netif_wake_queue(dev);
3240 return NETDEV_TX_OK;
3243 static int qeth_l3_open(struct net_device *dev)
3245 struct qeth_card *card = dev->ml_priv;
3248 QETH_CARD_TEXT(card, 4, "qethopen");
3249 if (card->state != CARD_STATE_SOFTSETUP)
3251 card->data.state = CH_STATE_UP;
3252 card->state = CARD_STATE_UP;
3253 netif_start_queue(dev);
3255 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3256 napi_enable(&card->napi);
3257 napi_schedule(&card->napi);
3263 static int qeth_l3_stop(struct net_device *dev)
3265 struct qeth_card *card = dev->ml_priv;
3267 QETH_CARD_TEXT(card, 4, "qethstop");
3268 netif_tx_disable(dev);
3269 if (card->state == CARD_STATE_UP) {
3270 card->state = CARD_STATE_SOFTSETUP;
3271 napi_disable(&card->napi);
3276 static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
3278 struct qeth_card *card = dev->ml_priv;
3280 return (card->options.checksum_type == HW_CHECKSUMMING);
3283 static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
3285 struct qeth_card *card = dev->ml_priv;
3286 enum qeth_checksum_types csum_type;
3289 csum_type = HW_CHECKSUMMING;
3291 csum_type = SW_CHECKSUMMING;
3293 return qeth_l3_set_rx_csum(card, csum_type);
3296 static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
3298 struct qeth_card *card = dev->ml_priv;
3302 rc = qeth_l3_set_large_send(card, QETH_LARGE_SEND_TSO);
3304 dev->features &= ~NETIF_F_TSO;
3305 card->options.large_send = QETH_LARGE_SEND_NO;
3310 static int qeth_l3_ethtool_set_tx_csum(struct net_device *dev, u32 data)
3312 struct qeth_card *card = dev->ml_priv;
3315 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3316 dev->features |= NETIF_F_IP_CSUM;
3320 dev->features &= ~NETIF_F_IP_CSUM;
3325 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3326 .get_link = ethtool_op_get_link,
3327 .get_tx_csum = ethtool_op_get_tx_csum,
3328 .set_tx_csum = qeth_l3_ethtool_set_tx_csum,
3329 .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
3330 .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
3331 .get_sg = ethtool_op_get_sg,
3332 .set_sg = ethtool_op_set_sg,
3333 .get_tso = ethtool_op_get_tso,
3334 .set_tso = qeth_l3_ethtool_set_tso,
3335 .get_strings = qeth_core_get_strings,
3336 .get_ethtool_stats = qeth_core_get_ethtool_stats,
3337 .get_sset_count = qeth_core_get_sset_count,
3338 .get_drvinfo = qeth_core_get_drvinfo,
3339 .get_settings = qeth_core_ethtool_get_settings,
3343 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3344 * NOARP on the netdevice is no option because it also turns off neighbor
3345 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3346 * arp resolution but we want the hard header (packet socket will work
3349 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3351 n->nud_state = NUD_NOARP;
3352 memcpy(n->ha, "FAKELL", 6);
3353 n->output = n->ops->connected_output;
3358 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3360 if (np->tbl->family == AF_INET)
3361 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3366 static const struct net_device_ops qeth_l3_netdev_ops = {
3367 .ndo_open = qeth_l3_open,
3368 .ndo_stop = qeth_l3_stop,
3369 .ndo_get_stats = qeth_get_stats,
3370 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3371 .ndo_validate_addr = eth_validate_addr,
3372 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3373 .ndo_do_ioctl = qeth_l3_do_ioctl,
3374 .ndo_change_mtu = qeth_change_mtu,
3375 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3376 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3377 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3378 .ndo_tx_timeout = qeth_tx_timeout,
3381 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3382 .ndo_open = qeth_l3_open,
3383 .ndo_stop = qeth_l3_stop,
3384 .ndo_get_stats = qeth_get_stats,
3385 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3386 .ndo_validate_addr = eth_validate_addr,
3387 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3388 .ndo_do_ioctl = qeth_l3_do_ioctl,
3389 .ndo_change_mtu = qeth_change_mtu,
3390 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3391 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3392 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3393 .ndo_tx_timeout = qeth_tx_timeout,
3394 .ndo_neigh_setup = qeth_l3_neigh_setup,
3397 static int qeth_l3_setup_netdev(struct qeth_card *card)
3399 if (card->info.type == QETH_CARD_TYPE_OSD ||
3400 card->info.type == QETH_CARD_TYPE_OSX) {
3401 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3402 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3404 card->dev = alloc_trdev(0);
3408 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3410 card->dev = alloc_etherdev(0);
3413 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3415 /*IPv6 address autoconfiguration stuff*/
3416 qeth_l3_get_unique_id(card);
3417 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3418 card->dev->dev_id = card->info.unique_id &
3421 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3422 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3425 card->dev->flags |= IFF_NOARP;
3426 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3427 qeth_l3_iqd_read_initial_mac(card);
3431 card->dev->ml_priv = card;
3432 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3433 card->dev->mtu = card->info.initial_mtu;
3434 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3435 card->dev->features |= NETIF_F_HW_VLAN_TX |
3436 NETIF_F_HW_VLAN_RX |
3437 NETIF_F_HW_VLAN_FILTER;
3438 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3439 card->dev->gso_max_size = 15 * PAGE_SIZE;
3441 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3442 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3443 return register_netdev(card->dev);
3446 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3448 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3450 qeth_l3_create_device_attributes(&gdev->dev);
3451 card->options.layer2 = 0;
3452 card->discipline.start_poll = qeth_qdio_start_poll;
3453 card->discipline.input_handler = (qdio_handler_t *)
3454 qeth_qdio_input_handler;
3455 card->discipline.output_handler = (qdio_handler_t *)
3456 qeth_qdio_output_handler;
3457 card->discipline.recover = qeth_l3_recover;
3461 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3463 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3465 qeth_l3_remove_device_attributes(&cgdev->dev);
3467 qeth_set_allowed_threads(card, 0, 1);
3468 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3470 if (cgdev->state == CCWGROUP_ONLINE) {
3471 card->use_hard_stop = 1;
3472 qeth_l3_set_offline(cgdev);
3476 unregister_netdev(card->dev);
3480 qeth_l3_clear_ip_list(card, 0, 0);
3481 qeth_l3_clear_ipato_list(card);
3485 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3487 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3489 enum qeth_card_states recover_flag;
3492 mutex_lock(&card->discipline_mutex);
3493 mutex_lock(&card->conf_mutex);
3494 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3495 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3497 recover_flag = card->state;
3498 rc = qeth_core_hardsetup_card(card);
3500 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3505 qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3507 if (!card->dev && qeth_l3_setup_netdev(card)) {
3512 card->state = CARD_STATE_HARDSETUP;
3513 memset(&card->rx, 0, sizeof(struct qeth_rx));
3514 qeth_print_status_message(card);
3517 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3519 rc = qeth_send_startlan(card);
3521 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3523 dev_warn(&card->gdev->dev,
3524 "The LAN is offline\n");
3525 card->lan_online = 0;
3531 card->lan_online = 1;
3534 rc = qeth_l3_setadapter_parms(card);
3536 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3537 if (!card->options.sniffer) {
3538 rc = qeth_l3_start_ipassists(card);
3540 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3541 qeth_l3_set_large_send(card, card->options.large_send);
3542 rc = qeth_l3_setrouting_v4(card);
3544 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3545 rc = qeth_l3_setrouting_v6(card);
3547 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3549 netif_tx_disable(card->dev);
3551 rc = qeth_init_qdio_queues(card);
3553 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3557 card->state = CARD_STATE_SOFTSETUP;
3559 qeth_set_allowed_threads(card, 0xffffffff, 0);
3560 qeth_l3_set_ip_addr_list(card);
3561 if (card->lan_online)
3562 netif_carrier_on(card->dev);
3564 netif_carrier_off(card->dev);
3565 if (recover_flag == CARD_STATE_RECOVER) {
3567 qeth_l3_open(card->dev);
3570 dev_open(card->dev);
3573 qeth_l3_set_multicast_list(card->dev);
3575 /* let user_space know that device is online */
3576 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3577 mutex_unlock(&card->conf_mutex);
3578 mutex_unlock(&card->discipline_mutex);
3581 card->use_hard_stop = 1;
3582 qeth_l3_stop_card(card, 0);
3583 ccw_device_set_offline(CARD_DDEV(card));
3584 ccw_device_set_offline(CARD_WDEV(card));
3585 ccw_device_set_offline(CARD_RDEV(card));
3586 if (recover_flag == CARD_STATE_RECOVER)
3587 card->state = CARD_STATE_RECOVER;
3589 card->state = CARD_STATE_DOWN;
3590 mutex_unlock(&card->conf_mutex);
3591 mutex_unlock(&card->discipline_mutex);
3595 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3597 return __qeth_l3_set_online(gdev, 0);
3600 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3603 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3604 int rc = 0, rc2 = 0, rc3 = 0;
3605 enum qeth_card_states recover_flag;
3607 mutex_lock(&card->discipline_mutex);
3608 mutex_lock(&card->conf_mutex);
3609 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3610 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3612 if (card->dev && netif_carrier_ok(card->dev))
3613 netif_carrier_off(card->dev);
3614 recover_flag = card->state;
3615 qeth_l3_stop_card(card, recovery_mode);
3616 rc = ccw_device_set_offline(CARD_DDEV(card));
3617 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3618 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3620 rc = (rc2) ? rc2 : rc3;
3622 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3623 if (recover_flag == CARD_STATE_UP)
3624 card->state = CARD_STATE_RECOVER;
3625 /* let user_space know that device is offline */
3626 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3627 mutex_unlock(&card->conf_mutex);
3628 mutex_unlock(&card->discipline_mutex);
3632 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3634 return __qeth_l3_set_offline(cgdev, 0);
3637 static int qeth_l3_recover(void *ptr)
3639 struct qeth_card *card;
3642 card = (struct qeth_card *) ptr;
3643 QETH_CARD_TEXT(card, 2, "recover1");
3644 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3645 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3647 QETH_CARD_TEXT(card, 2, "recover2");
3648 dev_warn(&card->gdev->dev,
3649 "A recovery process has been started for the device\n");
3650 card->use_hard_stop = 1;
3651 __qeth_l3_set_offline(card->gdev, 1);
3652 rc = __qeth_l3_set_online(card->gdev, 1);
3654 dev_info(&card->gdev->dev,
3655 "Device successfully recovered!\n");
3658 dev_close(card->dev);
3660 dev_warn(&card->gdev->dev, "The qeth device driver "
3661 "failed to recover an error on the device\n");
3663 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3664 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3668 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3670 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3671 qeth_l3_clear_ip_list(card, 0, 0);
3672 qeth_qdio_clear_card(card, 0);
3673 qeth_clear_qdio_buffers(card);
3676 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3678 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3681 netif_device_detach(card->dev);
3682 qeth_set_allowed_threads(card, 0, 1);
3683 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3684 if (gdev->state == CCWGROUP_OFFLINE)
3686 if (card->state == CARD_STATE_UP) {
3687 card->use_hard_stop = 1;
3688 __qeth_l3_set_offline(card->gdev, 1);
3690 __qeth_l3_set_offline(card->gdev, 0);
3694 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3696 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3699 if (gdev->state == CCWGROUP_OFFLINE)
3702 if (card->state == CARD_STATE_RECOVER) {
3703 rc = __qeth_l3_set_online(card->gdev, 1);
3706 dev_close(card->dev);
3710 rc = __qeth_l3_set_online(card->gdev, 0);
3712 qeth_set_allowed_threads(card, 0xffffffff, 0);
3714 netif_device_attach(card->dev);
3716 dev_warn(&card->gdev->dev, "The qeth device driver "
3717 "failed to recover an error on the device\n");
3721 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3722 .probe = qeth_l3_probe_device,
3723 .remove = qeth_l3_remove_device,
3724 .set_online = qeth_l3_set_online,
3725 .set_offline = qeth_l3_set_offline,
3726 .shutdown = qeth_l3_shutdown,
3727 .freeze = qeth_l3_pm_suspend,
3728 .thaw = qeth_l3_pm_resume,
3729 .restore = qeth_l3_pm_resume,
3731 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3733 static int qeth_l3_ip_event(struct notifier_block *this,
3734 unsigned long event, void *ptr)
3736 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3737 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3738 struct qeth_ipaddr *addr;
3739 struct qeth_card *card;
3741 if (dev_net(dev) != &init_net)
3744 card = qeth_l3_get_card_from_dev(dev);
3745 QETH_CARD_TEXT(card, 3, "ipevent");
3749 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3751 addr->u.a4.addr = ifa->ifa_address;
3752 addr->u.a4.mask = ifa->ifa_mask;
3753 addr->type = QETH_IP_TYPE_NORMAL;
3759 if (!qeth_l3_add_ip(card, addr))
3763 if (!qeth_l3_delete_ip(card, addr))
3769 qeth_l3_set_ip_addr_list(card);
3774 static struct notifier_block qeth_l3_ip_notifier = {
3779 #ifdef CONFIG_QETH_IPV6
3781 * IPv6 event handler
3783 static int qeth_l3_ip6_event(struct notifier_block *this,
3784 unsigned long event, void *ptr)
3786 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3787 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3788 struct qeth_ipaddr *addr;
3789 struct qeth_card *card;
3792 card = qeth_l3_get_card_from_dev(dev);
3795 QETH_CARD_TEXT(card, 3, "ip6event");
3796 if (!qeth_is_supported(card, IPA_IPV6))
3799 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3801 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3802 addr->u.a6.pfxlen = ifa->prefix_len;
3803 addr->type = QETH_IP_TYPE_NORMAL;
3809 if (!qeth_l3_add_ip(card, addr))
3813 if (!qeth_l3_delete_ip(card, addr))
3819 qeth_l3_set_ip_addr_list(card);
3824 static struct notifier_block qeth_l3_ip6_notifier = {
3830 static int qeth_l3_register_notifiers(void)
3834 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3835 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3838 #ifdef CONFIG_QETH_IPV6
3839 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3841 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3845 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3850 static void qeth_l3_unregister_notifiers(void)
3853 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3854 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3855 #ifdef CONFIG_QETH_IPV6
3856 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3857 #endif /* QETH_IPV6 */
3860 static int __init qeth_l3_init(void)
3864 pr_info("register layer 3 discipline\n");
3865 rc = qeth_l3_register_notifiers();
3869 static void __exit qeth_l3_exit(void)
3871 qeth_l3_unregister_notifiers();
3872 pr_info("unregister layer 3 discipline\n");
3875 module_init(qeth_l3_init);
3876 module_exit(qeth_l3_exit);
3877 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3878 MODULE_DESCRIPTION("qeth layer 3 discipline");
3879 MODULE_LICENSE("GPL");