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>
33 static int qeth_l3_set_offline(struct ccwgroup_device *);
34 static int qeth_l3_recover(void *);
35 static int qeth_l3_stop(struct net_device *);
36 static void qeth_l3_set_multicast_list(struct net_device *);
37 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
38 static int qeth_l3_register_addr_entry(struct qeth_card *,
39 struct qeth_ipaddr *);
40 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
41 struct qeth_ipaddr *);
42 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
43 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
45 int qeth_l3_set_large_send(struct qeth_card *card,
46 enum qeth_large_send_types type)
50 card->options.large_send = type;
51 if (card->dev == NULL)
54 if (card->options.large_send == QETH_LARGE_SEND_TSO) {
55 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
56 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
59 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
61 card->options.large_send = QETH_LARGE_SEND_NO;
65 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
67 card->options.large_send = QETH_LARGE_SEND_NO;
72 static int qeth_l3_isxdigit(char *buf)
75 if (!isxdigit(*buf++))
81 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
83 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
86 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
88 int count = 0, rc = 0;
92 rc = sscanf(buf, "%u.%u.%u.%u%c",
93 &in[0], &in[1], &in[2], &in[3], &c);
94 if (rc != 4 && (rc != 5 || c != '\n'))
96 for (count = 0; count < 4; count++) {
99 addr[count] = in[count];
104 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
106 sprintf(buf, "%pI6", addr);
109 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
111 const char *end, *end_tmp, *start;
114 int num2, cnt, out, found, save_cnt;
115 unsigned short in_tmp[8] = {0, };
117 cnt = out = found = save_cnt = num2 = 0;
122 end = strchr(start, ':');
124 end = buf + strlen(buf);
125 end_tmp = strchr(start, '\n');
132 if ((end - start) > 4)
134 memcpy(num, start, end - start);
135 if (!qeth_l3_isxdigit(num))
137 sscanf(start, "%x", &num2);
139 in_tmp[save_cnt++] = num2;
151 if (cnt + save_cnt > 8)
155 in[cnt--] = in_tmp[--save_cnt];
159 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
162 if (proto == QETH_PROT_IPV4)
163 qeth_l3_ipaddr4_to_string(addr, buf);
164 else if (proto == QETH_PROT_IPV6)
165 qeth_l3_ipaddr6_to_string(addr, buf);
168 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
171 if (proto == QETH_PROT_IPV4)
172 return qeth_l3_string_to_ipaddr4(buf, addr);
173 else if (proto == QETH_PROT_IPV6)
174 return qeth_l3_string_to_ipaddr6(buf, addr);
179 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
184 for (i = 0; i < len; ++i) {
186 for (j = 7; j >= 0; --j) {
187 bits[i*8 + j] = octet & 1;
193 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
194 struct qeth_ipaddr *addr)
196 struct qeth_ipato_entry *ipatoe;
197 u8 addr_bits[128] = {0, };
198 u8 ipatoe_bits[128] = {0, };
201 if (!card->ipato.enabled)
204 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
205 (addr->proto == QETH_PROT_IPV4)? 4:16);
206 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
207 if (addr->proto != ipatoe->proto)
209 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
210 (ipatoe->proto == QETH_PROT_IPV4) ?
212 if (addr->proto == QETH_PROT_IPV4)
213 rc = !memcmp(addr_bits, ipatoe_bits,
214 min(32, ipatoe->mask_bits));
216 rc = !memcmp(addr_bits, ipatoe_bits,
217 min(128, ipatoe->mask_bits));
222 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
224 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
231 * Add IP to be added to todo list. If there is already an "add todo"
232 * in this list we just incremenent the reference count.
233 * Returns 0 if we just incremented reference count.
235 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
236 struct qeth_ipaddr *addr, int add)
238 struct qeth_ipaddr *tmp, *t;
241 if (card->options.sniffer)
243 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
244 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
245 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
247 if ((tmp->proto == QETH_PROT_IPV4) &&
248 (addr->proto == QETH_PROT_IPV4) &&
249 (tmp->type == addr->type) &&
250 (tmp->is_multicast == addr->is_multicast) &&
251 (tmp->u.a4.addr == addr->u.a4.addr) &&
252 (tmp->u.a4.mask == addr->u.a4.mask)) {
256 if ((tmp->proto == QETH_PROT_IPV6) &&
257 (addr->proto == QETH_PROT_IPV6) &&
258 (tmp->type == addr->type) &&
259 (tmp->is_multicast == addr->is_multicast) &&
260 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
261 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
262 sizeof(struct in6_addr)) == 0)) {
268 if (addr->users != 0)
269 tmp->users += addr->users;
271 tmp->users += add ? 1 : -1;
272 if (tmp->users == 0) {
273 list_del(&tmp->entry);
278 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
279 list_add(&addr->entry, card->ip_tbd_list);
281 if (addr->users == 0)
282 addr->users += add ? 1 : -1;
283 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
284 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
285 QETH_CARD_TEXT(card, 2, "tkovaddr");
286 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
288 list_add_tail(&addr->entry, card->ip_tbd_list);
294 static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
299 QETH_CARD_TEXT(card, 4, "delip");
301 if (addr->proto == QETH_PROT_IPV4)
302 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
304 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
305 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
307 spin_lock_irqsave(&card->ip_lock, flags);
308 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
309 spin_unlock_irqrestore(&card->ip_lock, flags);
313 static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
318 QETH_CARD_TEXT(card, 4, "addip");
319 if (addr->proto == QETH_PROT_IPV4)
320 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
322 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
323 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
325 spin_lock_irqsave(&card->ip_lock, flags);
326 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
327 spin_unlock_irqrestore(&card->ip_lock, flags);
332 static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
333 enum qeth_prot_versions prot)
335 struct qeth_ipaddr *addr;
337 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
341 addr->type = QETH_IP_TYPE_NORMAL;
346 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
348 struct qeth_ipaddr *iptodo;
351 QETH_CARD_TEXT(card, 4, "delmc");
352 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
354 QETH_CARD_TEXT(card, 2, "dmcnomem");
357 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
358 spin_lock_irqsave(&card->ip_lock, flags);
359 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
361 spin_unlock_irqrestore(&card->ip_lock, flags);
365 * Add/remove address to/from card's ip list, i.e. try to add or remove
366 * reference to/from an IP address that is already registered on the card.
368 * 0 address was on card and its reference count has been adjusted,
369 * but is still > 0, so nothing has to be done
370 * also returns 0 if card was not on card and the todo was to delete
371 * the address -> there is also nothing to be done
372 * 1 address was not on card and the todo is to add it to the card's ip
374 * -1 address was on card and its reference count has been decremented
375 * to <= 0 by the todo -> address must be removed from card
377 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
378 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
380 struct qeth_ipaddr *addr;
383 list_for_each_entry(addr, &card->ip_list, entry) {
384 if ((addr->proto == QETH_PROT_IPV4) &&
385 (todo->proto == QETH_PROT_IPV4) &&
386 (addr->type == todo->type) &&
387 (addr->u.a4.addr == todo->u.a4.addr) &&
388 (addr->u.a4.mask == todo->u.a4.mask)) {
392 if ((addr->proto == QETH_PROT_IPV6) &&
393 (todo->proto == QETH_PROT_IPV6) &&
394 (addr->type == todo->type) &&
395 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
396 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
397 sizeof(struct in6_addr)) == 0)) {
403 addr->users += todo->users;
404 if (addr->users <= 0) {
408 /* for VIPA and RXIP limit refcount to 1 */
409 if (addr->type != QETH_IP_TYPE_NORMAL)
414 if (todo->users > 0) {
415 /* for VIPA and RXIP limit refcount to 1 */
416 if (todo->type != QETH_IP_TYPE_NORMAL)
423 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
424 unsigned long *flags)
426 struct list_head fail_list;
427 struct qeth_ipaddr *addr, *tmp;
430 INIT_LIST_HEAD(&fail_list);
432 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
433 if (addr->is_multicast) {
434 list_del(&addr->entry);
435 spin_unlock_irqrestore(&card->ip_lock, *flags);
436 rc = qeth_l3_deregister_addr_entry(card, addr);
437 spin_lock_irqsave(&card->ip_lock, *flags);
438 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
441 list_add_tail(&addr->entry, &fail_list);
445 list_splice(&fail_list, &card->ip_list);
448 static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
450 struct list_head *tbd_list;
451 struct qeth_ipaddr *todo, *addr;
455 QETH_CARD_TEXT(card, 2, "sdiplist");
456 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
458 if (card->options.sniffer)
460 spin_lock_irqsave(&card->ip_lock, flags);
461 tbd_list = card->ip_tbd_list;
462 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
463 if (!card->ip_tbd_list) {
464 QETH_CARD_TEXT(card, 0, "silnomem");
465 card->ip_tbd_list = tbd_list;
466 spin_unlock_irqrestore(&card->ip_lock, flags);
469 INIT_LIST_HEAD(card->ip_tbd_list);
471 while (!list_empty(tbd_list)) {
472 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
473 list_del(&todo->entry);
474 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
475 __qeth_l3_delete_all_mc(card, &flags);
479 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
481 /* nothing to be done; only adjusted refcount */
483 } else if (rc == 1) {
484 /* new entry to be added to on-card list */
485 spin_unlock_irqrestore(&card->ip_lock, flags);
486 rc = qeth_l3_register_addr_entry(card, todo);
487 spin_lock_irqsave(&card->ip_lock, flags);
488 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
489 list_add_tail(&todo->entry, &card->ip_list);
492 } else if (rc == -1) {
493 /* on-card entry to be removed */
494 list_del_init(&addr->entry);
495 spin_unlock_irqrestore(&card->ip_lock, flags);
496 rc = qeth_l3_deregister_addr_entry(card, addr);
497 spin_lock_irqsave(&card->ip_lock, flags);
498 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
501 list_add_tail(&addr->entry, &card->ip_list);
505 spin_unlock_irqrestore(&card->ip_lock, flags);
509 static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
512 struct qeth_ipaddr *addr, *tmp;
515 QETH_CARD_TEXT(card, 4, "clearip");
516 if (recover && card->options.sniffer)
518 spin_lock_irqsave(&card->ip_lock, flags);
519 /* clear todo list */
520 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
521 list_del(&addr->entry);
525 while (!list_empty(&card->ip_list)) {
526 addr = list_entry(card->ip_list.next,
527 struct qeth_ipaddr, entry);
528 list_del_init(&addr->entry);
530 spin_unlock_irqrestore(&card->ip_lock, flags);
531 qeth_l3_deregister_addr_entry(card, addr);
532 spin_lock_irqsave(&card->ip_lock, flags);
534 if (!recover || addr->is_multicast) {
538 list_add_tail(&addr->entry, card->ip_tbd_list);
540 spin_unlock_irqrestore(&card->ip_lock, flags);
543 static int qeth_l3_address_exists_in_list(struct list_head *list,
544 struct qeth_ipaddr *addr, int same_type)
546 struct qeth_ipaddr *tmp;
548 list_for_each_entry(tmp, list, entry) {
549 if ((tmp->proto == QETH_PROT_IPV4) &&
550 (addr->proto == QETH_PROT_IPV4) &&
551 ((same_type && (tmp->type == addr->type)) ||
552 (!same_type && (tmp->type != addr->type))) &&
553 (tmp->u.a4.addr == addr->u.a4.addr))
556 if ((tmp->proto == QETH_PROT_IPV6) &&
557 (addr->proto == QETH_PROT_IPV6) &&
558 ((same_type && (tmp->type == addr->type)) ||
559 (!same_type && (tmp->type != addr->type))) &&
560 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
561 sizeof(struct in6_addr)) == 0))
568 static int qeth_l3_send_setdelmc(struct qeth_card *card,
569 struct qeth_ipaddr *addr, int ipacmd)
572 struct qeth_cmd_buffer *iob;
573 struct qeth_ipa_cmd *cmd;
575 QETH_CARD_TEXT(card, 4, "setdelmc");
577 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
578 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
579 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
580 if (addr->proto == QETH_PROT_IPV6)
581 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
582 sizeof(struct in6_addr));
584 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
586 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
591 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
594 for (i = 0; i < 16; i++) {
599 netmask[i] = (u8)(0xFF00 >> j);
605 static int qeth_l3_send_setdelip(struct qeth_card *card,
606 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
609 struct qeth_cmd_buffer *iob;
610 struct qeth_ipa_cmd *cmd;
613 QETH_CARD_TEXT(card, 4, "setdelip");
614 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
616 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
617 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
618 if (addr->proto == QETH_PROT_IPV6) {
619 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
620 sizeof(struct in6_addr));
621 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
622 memcpy(cmd->data.setdelip6.mask, netmask,
623 sizeof(struct in6_addr));
624 cmd->data.setdelip6.flags = flags;
626 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
627 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
628 cmd->data.setdelip4.flags = flags;
631 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
636 static int qeth_l3_send_setrouting(struct qeth_card *card,
637 enum qeth_routing_types type, enum qeth_prot_versions prot)
640 struct qeth_ipa_cmd *cmd;
641 struct qeth_cmd_buffer *iob;
643 QETH_CARD_TEXT(card, 4, "setroutg");
644 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
645 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
646 cmd->data.setrtg.type = (type);
647 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
652 static void qeth_l3_correct_routing_type(struct qeth_card *card,
653 enum qeth_routing_types *type, enum qeth_prot_versions prot)
655 if (card->info.type == QETH_CARD_TYPE_IQD) {
658 case PRIMARY_CONNECTOR:
659 case SECONDARY_CONNECTOR:
660 case MULTICAST_ROUTER:
669 case SECONDARY_ROUTER:
671 case MULTICAST_ROUTER:
672 if (qeth_is_ipafunc_supported(card, prot,
683 int qeth_l3_setrouting_v4(struct qeth_card *card)
687 QETH_CARD_TEXT(card, 3, "setrtg4");
689 qeth_l3_correct_routing_type(card, &card->options.route4.type,
692 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
695 card->options.route4.type = NO_ROUTER;
696 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
697 " on %s. Type set to 'no router'.\n", rc,
698 QETH_CARD_IFNAME(card));
703 int qeth_l3_setrouting_v6(struct qeth_card *card)
707 QETH_CARD_TEXT(card, 3, "setrtg6");
708 #ifdef CONFIG_QETH_IPV6
710 if (!qeth_is_supported(card, IPA_IPV6))
712 qeth_l3_correct_routing_type(card, &card->options.route6.type,
715 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
718 card->options.route6.type = NO_ROUTER;
719 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
720 " on %s. Type set to 'no router'.\n", rc,
721 QETH_CARD_IFNAME(card));
728 * IP address takeover related functions
730 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
733 struct qeth_ipato_entry *ipatoe, *tmp;
736 spin_lock_irqsave(&card->ip_lock, flags);
737 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
738 list_del(&ipatoe->entry);
741 spin_unlock_irqrestore(&card->ip_lock, flags);
744 int qeth_l3_add_ipato_entry(struct qeth_card *card,
745 struct qeth_ipato_entry *new)
747 struct qeth_ipato_entry *ipatoe;
751 QETH_CARD_TEXT(card, 2, "addipato");
752 spin_lock_irqsave(&card->ip_lock, flags);
753 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
754 if (ipatoe->proto != new->proto)
756 if (!memcmp(ipatoe->addr, new->addr,
757 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
758 (ipatoe->mask_bits == new->mask_bits)) {
764 list_add_tail(&new->entry, &card->ipato.entries);
766 spin_unlock_irqrestore(&card->ip_lock, flags);
770 void qeth_l3_del_ipato_entry(struct qeth_card *card,
771 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
773 struct qeth_ipato_entry *ipatoe, *tmp;
776 QETH_CARD_TEXT(card, 2, "delipato");
777 spin_lock_irqsave(&card->ip_lock, flags);
778 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
779 if (ipatoe->proto != proto)
781 if (!memcmp(ipatoe->addr, addr,
782 (proto == QETH_PROT_IPV4)? 4:16) &&
783 (ipatoe->mask_bits == mask_bits)) {
784 list_del(&ipatoe->entry);
788 spin_unlock_irqrestore(&card->ip_lock, flags);
792 * VIPA related functions
794 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
797 struct qeth_ipaddr *ipaddr;
801 ipaddr = qeth_l3_get_addr_buffer(proto);
803 if (proto == QETH_PROT_IPV4) {
804 QETH_CARD_TEXT(card, 2, "addvipa4");
805 memcpy(&ipaddr->u.a4.addr, addr, 4);
806 ipaddr->u.a4.mask = 0;
807 } else if (proto == QETH_PROT_IPV6) {
808 QETH_CARD_TEXT(card, 2, "addvipa6");
809 memcpy(&ipaddr->u.a6.addr, addr, 16);
810 ipaddr->u.a6.pfxlen = 0;
812 ipaddr->type = QETH_IP_TYPE_VIPA;
813 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
814 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
817 spin_lock_irqsave(&card->ip_lock, flags);
818 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
819 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
821 spin_unlock_irqrestore(&card->ip_lock, flags);
825 if (!qeth_l3_add_ip(card, ipaddr))
827 qeth_l3_set_ip_addr_list(card);
831 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
834 struct qeth_ipaddr *ipaddr;
836 ipaddr = qeth_l3_get_addr_buffer(proto);
838 if (proto == QETH_PROT_IPV4) {
839 QETH_CARD_TEXT(card, 2, "delvipa4");
840 memcpy(&ipaddr->u.a4.addr, addr, 4);
841 ipaddr->u.a4.mask = 0;
842 } else if (proto == QETH_PROT_IPV6) {
843 QETH_CARD_TEXT(card, 2, "delvipa6");
844 memcpy(&ipaddr->u.a6.addr, addr, 16);
845 ipaddr->u.a6.pfxlen = 0;
847 ipaddr->type = QETH_IP_TYPE_VIPA;
850 if (!qeth_l3_delete_ip(card, ipaddr))
852 qeth_l3_set_ip_addr_list(card);
856 * proxy ARP related functions
858 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
861 struct qeth_ipaddr *ipaddr;
865 ipaddr = qeth_l3_get_addr_buffer(proto);
867 if (proto == QETH_PROT_IPV4) {
868 QETH_CARD_TEXT(card, 2, "addrxip4");
869 memcpy(&ipaddr->u.a4.addr, addr, 4);
870 ipaddr->u.a4.mask = 0;
871 } else if (proto == QETH_PROT_IPV6) {
872 QETH_CARD_TEXT(card, 2, "addrxip6");
873 memcpy(&ipaddr->u.a6.addr, addr, 16);
874 ipaddr->u.a6.pfxlen = 0;
876 ipaddr->type = QETH_IP_TYPE_RXIP;
877 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
878 ipaddr->del_flags = 0;
881 spin_lock_irqsave(&card->ip_lock, flags);
882 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
883 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
885 spin_unlock_irqrestore(&card->ip_lock, flags);
889 if (!qeth_l3_add_ip(card, ipaddr))
891 qeth_l3_set_ip_addr_list(card);
895 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
898 struct qeth_ipaddr *ipaddr;
900 ipaddr = qeth_l3_get_addr_buffer(proto);
902 if (proto == QETH_PROT_IPV4) {
903 QETH_CARD_TEXT(card, 2, "addrxip4");
904 memcpy(&ipaddr->u.a4.addr, addr, 4);
905 ipaddr->u.a4.mask = 0;
906 } else if (proto == QETH_PROT_IPV6) {
907 QETH_CARD_TEXT(card, 2, "addrxip6");
908 memcpy(&ipaddr->u.a6.addr, addr, 16);
909 ipaddr->u.a6.pfxlen = 0;
911 ipaddr->type = QETH_IP_TYPE_RXIP;
914 if (!qeth_l3_delete_ip(card, ipaddr))
916 qeth_l3_set_ip_addr_list(card);
919 static int qeth_l3_register_addr_entry(struct qeth_card *card,
920 struct qeth_ipaddr *addr)
926 if (addr->proto == QETH_PROT_IPV4) {
927 QETH_CARD_TEXT(card, 2, "setaddr4");
928 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
929 } else if (addr->proto == QETH_PROT_IPV6) {
930 QETH_CARD_TEXT(card, 2, "setaddr6");
931 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
932 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
934 QETH_CARD_TEXT(card, 2, "setaddr?");
935 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
938 if (addr->is_multicast)
939 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
941 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
944 QETH_CARD_TEXT(card, 2, "failed");
945 } while ((--cnt > 0) && rc);
947 QETH_CARD_TEXT(card, 2, "FAILED");
948 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
949 dev_warn(&card->gdev->dev,
950 "Registering IP address %s failed\n", buf);
955 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
956 struct qeth_ipaddr *addr)
960 if (addr->proto == QETH_PROT_IPV4) {
961 QETH_CARD_TEXT(card, 2, "deladdr4");
962 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
963 } else if (addr->proto == QETH_PROT_IPV6) {
964 QETH_CARD_TEXT(card, 2, "deladdr6");
965 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
966 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
968 QETH_CARD_TEXT(card, 2, "deladdr?");
969 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
971 if (addr->is_multicast)
972 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
974 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
977 QETH_CARD_TEXT(card, 2, "failed");
982 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
984 if (cast_type == RTN_MULTICAST)
985 return QETH_CAST_MULTICAST;
986 if (cast_type == RTN_BROADCAST)
987 return QETH_CAST_BROADCAST;
988 return QETH_CAST_UNICAST;
991 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
993 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
994 if (cast_type == RTN_MULTICAST)
995 return ct | QETH_CAST_MULTICAST;
996 if (cast_type == RTN_ANYCAST)
997 return ct | QETH_CAST_ANYCAST;
998 if (cast_type == RTN_BROADCAST)
999 return ct | QETH_CAST_BROADCAST;
1000 return ct | QETH_CAST_UNICAST;
1003 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
1007 struct qeth_cmd_buffer *iob;
1008 struct qeth_ipa_cmd *cmd;
1010 QETH_CARD_TEXT(card, 4, "adpmode");
1012 iob = qeth_get_adapter_cmd(card, command,
1013 sizeof(struct qeth_ipacmd_setadpparms));
1014 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1015 cmd->data.setadapterparms.data.mode = mode;
1016 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
1021 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1025 QETH_CARD_TEXT(card, 4, "adphstr");
1027 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1028 rc = qeth_l3_send_setadp_mode(card,
1029 IPA_SETADP_SET_BROADCAST_MODE,
1030 card->options.broadcast_mode);
1032 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1034 CARD_BUS_ID(card), rc);
1035 rc = qeth_l3_send_setadp_mode(card,
1036 IPA_SETADP_ALTER_MAC_ADDRESS,
1037 card->options.macaddr_mode);
1039 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1040 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1043 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1044 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1045 "to set broadcast mode, using ALLRINGS "
1046 "on device %s:\n", CARD_BUS_ID(card));
1047 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1048 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1049 "to set macaddr mode, using NONCANONICAL "
1050 "on device %s:\n", CARD_BUS_ID(card));
1054 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1058 QETH_DBF_TEXT(SETUP, 2, "setadprm");
1060 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1061 dev_info(&card->gdev->dev,
1062 "set adapter parameters not supported.\n");
1063 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1066 rc = qeth_query_setadapterparms(card);
1068 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1069 "0x%x\n", dev_name(&card->gdev->dev), rc);
1072 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1073 rc = qeth_setadpparms_change_macaddr(card);
1075 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1076 " address failed\n");
1079 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1080 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1081 rc = qeth_l3_setadapter_hstr(card);
1086 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1087 struct qeth_reply *reply, unsigned long data)
1089 struct qeth_ipa_cmd *cmd;
1091 QETH_CARD_TEXT(card, 4, "defadpcb");
1093 cmd = (struct qeth_ipa_cmd *) data;
1094 if (cmd->hdr.return_code == 0) {
1095 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1096 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1097 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1098 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1099 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1101 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1102 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1103 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1104 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1106 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1107 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1108 card->info.tx_csum_mask =
1109 cmd->data.setassparms.data.flags_32bit;
1110 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1116 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1117 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1118 __u16 len, enum qeth_prot_versions prot)
1120 struct qeth_cmd_buffer *iob;
1121 struct qeth_ipa_cmd *cmd;
1123 QETH_CARD_TEXT(card, 4, "getasscm");
1124 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1126 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1127 cmd->data.setassparms.hdr.assist_no = ipa_func;
1128 cmd->data.setassparms.hdr.length = 8 + len;
1129 cmd->data.setassparms.hdr.command_code = cmd_code;
1130 cmd->data.setassparms.hdr.return_code = 0;
1131 cmd->data.setassparms.hdr.seq_no = 0;
1136 static int qeth_l3_send_setassparms(struct qeth_card *card,
1137 struct qeth_cmd_buffer *iob, __u16 len, long data,
1138 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1143 struct qeth_ipa_cmd *cmd;
1145 QETH_CARD_TEXT(card, 4, "sendassp");
1147 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1148 if (len <= sizeof(__u32))
1149 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1150 else /* (len > sizeof(__u32)) */
1151 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1153 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1157 #ifdef CONFIG_QETH_IPV6
1158 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1159 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1162 struct qeth_cmd_buffer *iob;
1164 QETH_CARD_TEXT(card, 4, "simassp6");
1165 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1167 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1168 qeth_l3_default_setassparms_cb, NULL);
1173 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1174 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1178 struct qeth_cmd_buffer *iob;
1180 QETH_CARD_TEXT(card, 4, "simassp4");
1182 length = sizeof(__u32);
1183 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1184 length, QETH_PROT_IPV4);
1185 rc = qeth_l3_send_setassparms(card, iob, length, data,
1186 qeth_l3_default_setassparms_cb, NULL);
1190 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1194 QETH_CARD_TEXT(card, 3, "ipaarp");
1196 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1197 dev_info(&card->gdev->dev,
1198 "ARP processing not supported on %s!\n",
1199 QETH_CARD_IFNAME(card));
1202 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1203 IPA_CMD_ASS_START, 0);
1205 dev_warn(&card->gdev->dev,
1206 "Starting ARP processing support for %s failed\n",
1207 QETH_CARD_IFNAME(card));
1212 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1216 QETH_CARD_TEXT(card, 3, "ipaipfrg");
1218 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1219 dev_info(&card->gdev->dev,
1220 "Hardware IP fragmentation not supported on %s\n",
1221 QETH_CARD_IFNAME(card));
1225 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1226 IPA_CMD_ASS_START, 0);
1228 dev_warn(&card->gdev->dev,
1229 "Starting IP fragmentation support for %s failed\n",
1230 QETH_CARD_IFNAME(card));
1232 dev_info(&card->gdev->dev,
1233 "Hardware IP fragmentation enabled \n");
1237 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1241 QETH_CARD_TEXT(card, 3, "stsrcmac");
1243 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1244 dev_info(&card->gdev->dev,
1245 "Inbound source MAC-address not supported on %s\n",
1246 QETH_CARD_IFNAME(card));
1250 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1251 IPA_CMD_ASS_START, 0);
1253 dev_warn(&card->gdev->dev,
1254 "Starting source MAC-address support for %s failed\n",
1255 QETH_CARD_IFNAME(card));
1259 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1263 QETH_CARD_TEXT(card, 3, "strtvlan");
1265 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1266 dev_info(&card->gdev->dev,
1267 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1271 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1272 IPA_CMD_ASS_START, 0);
1274 dev_warn(&card->gdev->dev,
1275 "Starting VLAN support for %s failed\n",
1276 QETH_CARD_IFNAME(card));
1278 dev_info(&card->gdev->dev, "VLAN enabled\n");
1283 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1287 QETH_CARD_TEXT(card, 3, "stmcast");
1289 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1290 dev_info(&card->gdev->dev,
1291 "Multicast not supported on %s\n",
1292 QETH_CARD_IFNAME(card));
1296 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1297 IPA_CMD_ASS_START, 0);
1299 dev_warn(&card->gdev->dev,
1300 "Starting multicast support for %s failed\n",
1301 QETH_CARD_IFNAME(card));
1303 dev_info(&card->gdev->dev, "Multicast enabled\n");
1304 card->dev->flags |= IFF_MULTICAST;
1309 static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1310 struct qeth_reply *reply, unsigned long data)
1312 struct qeth_ipa_cmd *cmd;
1314 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
1316 cmd = (struct qeth_ipa_cmd *) data;
1317 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1318 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1319 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1321 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1322 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1324 QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1325 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1326 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
1330 static int qeth_l3_query_ipassists(struct qeth_card *card,
1331 enum qeth_prot_versions prot)
1334 struct qeth_cmd_buffer *iob;
1336 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
1337 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1338 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1342 #ifdef CONFIG_QETH_IPV6
1343 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1347 QETH_CARD_TEXT(card, 3, "softipv6");
1349 if (card->info.type == QETH_CARD_TYPE_IQD)
1352 rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1354 dev_err(&card->gdev->dev,
1355 "Activating IPv6 support for %s failed\n",
1356 QETH_CARD_IFNAME(card));
1359 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1360 IPA_CMD_ASS_START, 3);
1362 dev_err(&card->gdev->dev,
1363 "Activating IPv6 support for %s failed\n",
1364 QETH_CARD_IFNAME(card));
1367 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1370 dev_err(&card->gdev->dev,
1371 "Activating IPv6 support for %s failed\n",
1372 QETH_CARD_IFNAME(card));
1375 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1378 dev_warn(&card->gdev->dev,
1379 "Enabling the passthrough mode for %s failed\n",
1380 QETH_CARD_IFNAME(card));
1384 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1389 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1393 QETH_CARD_TEXT(card, 3, "strtipv6");
1395 if (!qeth_is_supported(card, IPA_IPV6)) {
1396 dev_info(&card->gdev->dev,
1397 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1400 #ifdef CONFIG_QETH_IPV6
1401 rc = qeth_l3_softsetup_ipv6(card);
1406 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1410 QETH_CARD_TEXT(card, 3, "stbrdcst");
1411 card->info.broadcast_capable = 0;
1412 if (!qeth_is_supported(card, IPA_FILTERING)) {
1413 dev_info(&card->gdev->dev,
1414 "Broadcast not supported on %s\n",
1415 QETH_CARD_IFNAME(card));
1419 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1420 IPA_CMD_ASS_START, 0);
1422 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1423 "%s failed\n", QETH_CARD_IFNAME(card));
1427 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1428 IPA_CMD_ASS_CONFIGURE, 1);
1430 dev_warn(&card->gdev->dev,
1431 "Setting up broadcast filtering for %s failed\n",
1432 QETH_CARD_IFNAME(card));
1435 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1436 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1437 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1438 IPA_CMD_ASS_ENABLE, 1);
1440 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1441 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1444 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1446 if (card->info.broadcast_capable)
1447 card->dev->flags |= IFF_BROADCAST;
1449 card->dev->flags &= ~IFF_BROADCAST;
1453 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1457 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1458 IPA_CMD_ASS_START, 0);
1460 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1461 "failed, using SW checksumming\n",
1462 QETH_CARD_IFNAME(card));
1465 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1467 card->info.csum_mask);
1469 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1470 "failed, using SW checksumming\n",
1471 QETH_CARD_IFNAME(card));
1477 int qeth_l3_set_rx_csum(struct qeth_card *card,
1478 enum qeth_checksum_types csum_type)
1482 if (card->options.checksum_type == HW_CHECKSUMMING) {
1483 if ((csum_type != HW_CHECKSUMMING) &&
1484 (card->state != CARD_STATE_DOWN)) {
1485 rc = qeth_l3_send_simple_setassparms(card,
1486 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1491 if (csum_type == HW_CHECKSUMMING) {
1492 if (card->state != CARD_STATE_DOWN) {
1493 if (!qeth_is_supported(card,
1494 IPA_INBOUND_CHECKSUM))
1496 rc = qeth_l3_send_checksum_command(card);
1502 card->options.checksum_type = csum_type;
1506 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1510 QETH_CARD_TEXT(card, 3, "strtcsum");
1512 if (card->options.checksum_type == NO_CHECKSUMMING) {
1513 dev_info(&card->gdev->dev,
1514 "Using no checksumming on %s.\n",
1515 QETH_CARD_IFNAME(card));
1518 if (card->options.checksum_type == SW_CHECKSUMMING) {
1519 dev_info(&card->gdev->dev,
1520 "Using SW checksumming on %s.\n",
1521 QETH_CARD_IFNAME(card));
1524 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
1525 dev_info(&card->gdev->dev,
1526 "Inbound HW Checksumming not "
1527 "supported on %s,\ncontinuing "
1528 "using Inbound SW Checksumming\n",
1529 QETH_CARD_IFNAME(card));
1530 card->options.checksum_type = SW_CHECKSUMMING;
1533 rc = qeth_l3_send_checksum_command(card);
1535 dev_info(&card->gdev->dev,
1536 "HW Checksumming (inbound) enabled\n");
1541 static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1545 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1547 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1548 IPA_CMD_ASS_START, 0);
1551 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1552 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1555 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1558 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1559 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1563 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1567 QETH_CARD_TEXT(card, 3, "sttso");
1569 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1570 dev_info(&card->gdev->dev,
1571 "Outbound TSO not supported on %s\n",
1572 QETH_CARD_IFNAME(card));
1575 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1576 IPA_CMD_ASS_START, 0);
1578 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1579 "segmentation offload for %s failed\n",
1580 QETH_CARD_IFNAME(card));
1582 dev_info(&card->gdev->dev,
1583 "Outbound TSO enabled\n");
1585 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1586 card->options.large_send = QETH_LARGE_SEND_NO;
1587 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1592 static int qeth_l3_start_ipassists(struct qeth_card *card)
1594 QETH_CARD_TEXT(card, 3, "strtipas");
1596 qeth_set_access_ctrl_online(card); /* go on*/
1597 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1598 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1599 qeth_l3_start_ipa_source_mac(card); /* go on*/
1600 qeth_l3_start_ipa_vlan(card); /* go on*/
1601 qeth_l3_start_ipa_multicast(card); /* go on*/
1602 qeth_l3_start_ipa_ipv6(card); /* go on*/
1603 qeth_l3_start_ipa_broadcast(card); /* go on*/
1604 qeth_l3_start_ipa_checksum(card); /* go on*/
1605 qeth_l3_start_ipa_tx_checksum(card);
1606 qeth_l3_start_ipa_tso(card); /* go on*/
1610 static int qeth_l3_put_unique_id(struct qeth_card *card)
1614 struct qeth_cmd_buffer *iob;
1615 struct qeth_ipa_cmd *cmd;
1617 QETH_CARD_TEXT(card, 2, "puniqeid");
1619 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
1620 UNIQUE_ID_NOT_BY_CARD)
1622 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
1624 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1625 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1626 card->info.unique_id;
1627 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
1628 card->dev->dev_addr, OSA_ADDR_LEN);
1629 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
1633 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1634 struct qeth_reply *reply, unsigned long data)
1636 struct qeth_ipa_cmd *cmd;
1638 cmd = (struct qeth_ipa_cmd *) data;
1639 if (cmd->hdr.return_code == 0)
1640 memcpy(card->dev->dev_addr,
1641 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1643 random_ether_addr(card->dev->dev_addr);
1648 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1651 struct qeth_cmd_buffer *iob;
1652 struct qeth_ipa_cmd *cmd;
1654 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1656 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1658 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1659 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1660 card->info.unique_id;
1662 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1667 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1668 struct qeth_reply *reply, unsigned long data)
1670 struct qeth_ipa_cmd *cmd;
1672 cmd = (struct qeth_ipa_cmd *) data;
1673 if (cmd->hdr.return_code == 0)
1674 card->info.unique_id = *((__u16 *)
1675 &cmd->data.create_destroy_addr.unique_id[6]);
1677 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1678 UNIQUE_ID_NOT_BY_CARD;
1679 dev_warn(&card->gdev->dev, "The network adapter failed to "
1680 "generate a unique ID\n");
1685 static int qeth_l3_get_unique_id(struct qeth_card *card)
1688 struct qeth_cmd_buffer *iob;
1689 struct qeth_ipa_cmd *cmd;
1691 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1693 if (!qeth_is_supported(card, IPA_IPV6)) {
1694 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1695 UNIQUE_ID_NOT_BY_CARD;
1699 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1701 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1702 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1703 card->info.unique_id;
1705 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1710 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1713 struct qeth_ipa_cmd *cmd;
1716 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1718 cmd = (struct qeth_ipa_cmd *)data;
1719 rc = cmd->hdr.return_code;
1721 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1722 switch (cmd->data.diagass.action) {
1723 case QETH_DIAGS_CMD_TRACE_QUERY:
1725 case QETH_DIAGS_CMD_TRACE_DISABLE:
1728 case IPA_RC_INVALID_SUBCMD:
1729 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1730 dev_info(&card->gdev->dev, "The HiperSockets network "
1731 "traffic analyzer is deactivated\n");
1737 case QETH_DIAGS_CMD_TRACE_ENABLE:
1740 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1741 dev_info(&card->gdev->dev, "The HiperSockets network "
1742 "traffic analyzer is activated\n");
1744 case IPA_RC_HARDWARE_AUTH_ERROR:
1745 dev_warn(&card->gdev->dev, "The device is not "
1746 "authorized to run as a HiperSockets network "
1747 "traffic analyzer\n");
1749 case IPA_RC_TRACE_ALREADY_ACTIVE:
1750 dev_warn(&card->gdev->dev, "A HiperSockets "
1751 "network traffic analyzer is already "
1752 "active in the HiperSockets LAN\n");
1759 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1760 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1767 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1769 struct qeth_cmd_buffer *iob;
1770 struct qeth_ipa_cmd *cmd;
1772 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1774 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1775 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1776 cmd->data.diagass.subcmd_len = 16;
1777 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1778 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1779 cmd->data.diagass.action = diags_cmd;
1780 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1783 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1784 struct net_device *dev)
1786 if (dev->type == ARPHRD_IEEE802_TR)
1787 ip_tr_mc_map(ipm, mac);
1789 ip_eth_mc_map(ipm, mac);
1792 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1794 struct qeth_ipaddr *ipm;
1795 struct ip_mc_list *im4;
1796 char buf[MAX_ADDR_LEN];
1798 QETH_CARD_TEXT(card, 4, "addmc");
1799 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
1800 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1801 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1804 ipm->u.a4.addr = im4->multiaddr;
1805 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1806 ipm->is_multicast = 1;
1807 if (!qeth_l3_add_ip(card, ipm))
1812 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1814 struct in_device *in_dev;
1815 struct vlan_group *vg;
1818 QETH_CARD_TEXT(card, 4, "addmcvl");
1819 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1823 for (i = 0; i < VLAN_N_VID; i++) {
1824 struct net_device *netdev = vlan_group_get_device(vg, i);
1825 if (netdev == NULL ||
1826 !(netdev->flags & IFF_UP))
1828 in_dev = in_dev_get(netdev);
1831 read_lock(&in_dev->mc_list_lock);
1832 qeth_l3_add_mc(card, in_dev);
1833 read_unlock(&in_dev->mc_list_lock);
1838 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1840 struct in_device *in4_dev;
1842 QETH_CARD_TEXT(card, 4, "chkmcv4");
1843 in4_dev = in_dev_get(card->dev);
1844 if (in4_dev == NULL)
1846 read_lock(&in4_dev->mc_list_lock);
1847 qeth_l3_add_mc(card, in4_dev);
1848 qeth_l3_add_vlan_mc(card);
1849 read_unlock(&in4_dev->mc_list_lock);
1850 in_dev_put(in4_dev);
1853 #ifdef CONFIG_QETH_IPV6
1854 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1856 struct qeth_ipaddr *ipm;
1857 struct ifmcaddr6 *im6;
1858 char buf[MAX_ADDR_LEN];
1860 QETH_CARD_TEXT(card, 4, "addmc6");
1861 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1862 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1863 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1866 ipm->is_multicast = 1;
1867 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1868 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1869 sizeof(struct in6_addr));
1870 if (!qeth_l3_add_ip(card, ipm))
1875 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1877 struct inet6_dev *in_dev;
1878 struct vlan_group *vg;
1881 QETH_CARD_TEXT(card, 4, "admc6vl");
1882 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1886 for (i = 0; i < VLAN_N_VID; i++) {
1887 struct net_device *netdev = vlan_group_get_device(vg, i);
1888 if (netdev == NULL ||
1889 !(netdev->flags & IFF_UP))
1891 in_dev = in6_dev_get(netdev);
1894 read_lock_bh(&in_dev->lock);
1895 qeth_l3_add_mc6(card, in_dev);
1896 read_unlock_bh(&in_dev->lock);
1897 in6_dev_put(in_dev);
1901 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1903 struct inet6_dev *in6_dev;
1905 QETH_CARD_TEXT(card, 4, "chkmcv6");
1906 if (!qeth_is_supported(card, IPA_IPV6))
1908 in6_dev = in6_dev_get(card->dev);
1909 if (in6_dev == NULL)
1911 read_lock_bh(&in6_dev->lock);
1912 qeth_l3_add_mc6(card, in6_dev);
1913 qeth_l3_add_vlan_mc6(card);
1914 read_unlock_bh(&in6_dev->lock);
1915 in6_dev_put(in6_dev);
1917 #endif /* CONFIG_QETH_IPV6 */
1919 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1922 struct in_device *in_dev;
1923 struct in_ifaddr *ifa;
1924 struct qeth_ipaddr *addr;
1926 QETH_CARD_TEXT(card, 4, "frvaddr4");
1928 in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1931 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1932 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1934 addr->u.a4.addr = ifa->ifa_address;
1935 addr->u.a4.mask = ifa->ifa_mask;
1936 addr->type = QETH_IP_TYPE_NORMAL;
1937 if (!qeth_l3_delete_ip(card, addr))
1944 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1947 #ifdef CONFIG_QETH_IPV6
1948 struct inet6_dev *in6_dev;
1949 struct inet6_ifaddr *ifa;
1950 struct qeth_ipaddr *addr;
1952 QETH_CARD_TEXT(card, 4, "frvaddr6");
1954 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1957 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1958 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1960 memcpy(&addr->u.a6.addr, &ifa->addr,
1961 sizeof(struct in6_addr));
1962 addr->u.a6.pfxlen = ifa->prefix_len;
1963 addr->type = QETH_IP_TYPE_NORMAL;
1964 if (!qeth_l3_delete_ip(card, addr))
1968 in6_dev_put(in6_dev);
1969 #endif /* CONFIG_QETH_IPV6 */
1972 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1977 qeth_l3_free_vlan_addresses4(card, vid);
1978 qeth_l3_free_vlan_addresses6(card, vid);
1981 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1982 struct vlan_group *grp)
1984 struct qeth_card *card = dev->ml_priv;
1985 unsigned long flags;
1987 QETH_CARD_TEXT(card, 4, "vlanreg");
1988 spin_lock_irqsave(&card->vlanlock, flags);
1989 card->vlangrp = grp;
1990 spin_unlock_irqrestore(&card->vlanlock, flags);
1993 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1998 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
2000 struct qeth_card *card = dev->ml_priv;
2001 unsigned long flags;
2003 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
2004 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2005 QETH_CARD_TEXT(card, 3, "kidREC");
2008 spin_lock_irqsave(&card->vlanlock, flags);
2009 /* unregister IP addresses of vlan device */
2010 qeth_l3_free_vlan_addresses(card, vid);
2011 vlan_group_set_device(card->vlangrp, vid, NULL);
2012 spin_unlock_irqrestore(&card->vlanlock, flags);
2013 qeth_l3_set_multicast_list(card->dev);
2016 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
2017 struct sk_buff *skb, struct qeth_hdr *hdr,
2018 unsigned short *vlan_id)
2021 struct iphdr *ip_hdr;
2022 unsigned char tg_addr[MAX_ADDR_LEN];
2025 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
2026 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2028 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
2029 case QETH_CAST_MULTICAST:
2031 #ifdef CONFIG_QETH_IPV6
2032 case __constant_htons(ETH_P_IPV6):
2033 ndisc_mc_map((struct in6_addr *)
2035 tg_addr, card->dev, 0);
2038 case __constant_htons(ETH_P_IP):
2039 ip_hdr = (struct iphdr *)skb->data;
2040 (card->dev->type == ARPHRD_IEEE802_TR) ?
2041 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
2042 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
2045 memcpy(tg_addr, card->dev->broadcast,
2046 card->dev->addr_len);
2048 card->stats.multicast++;
2049 skb->pkt_type = PACKET_MULTICAST;
2051 case QETH_CAST_BROADCAST:
2052 memcpy(tg_addr, card->dev->broadcast,
2053 card->dev->addr_len);
2054 card->stats.multicast++;
2055 skb->pkt_type = PACKET_BROADCAST;
2057 case QETH_CAST_UNICAST:
2058 case QETH_CAST_ANYCAST:
2059 case QETH_CAST_NOCAST:
2061 if (card->options.sniffer)
2062 skb->pkt_type = PACKET_OTHERHOST;
2064 skb->pkt_type = PACKET_HOST;
2065 memcpy(tg_addr, card->dev->dev_addr,
2066 card->dev->addr_len);
2068 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2069 card->dev->header_ops->create(skb, card->dev, prot,
2070 tg_addr, &hdr->hdr.l3.dest_addr[2],
2071 card->dev->addr_len);
2073 card->dev->header_ops->create(skb, card->dev, prot,
2074 tg_addr, "FAKELL", card->dev->addr_len);
2078 if (card->dev->type == ARPHRD_IEEE802_TR)
2079 skb->protocol = tr_type_trans(skb, card->dev);
2082 skb->protocol = eth_type_trans(skb, card->dev);
2084 if (hdr->hdr.l3.ext_flags &
2085 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2086 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
2087 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2091 switch (card->options.checksum_type) {
2092 case SW_CHECKSUMMING:
2093 skb->ip_summed = CHECKSUM_NONE;
2095 case NO_CHECKSUMMING:
2096 skb->ip_summed = CHECKSUM_UNNECESSARY;
2098 case HW_CHECKSUMMING:
2099 if ((hdr->hdr.l3.ext_flags &
2100 (QETH_HDR_EXT_CSUM_HDR_REQ |
2101 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2102 (QETH_HDR_EXT_CSUM_HDR_REQ |
2103 QETH_HDR_EXT_CSUM_TRANSP_REQ))
2104 skb->ip_summed = CHECKSUM_UNNECESSARY;
2106 skb->ip_summed = CHECKSUM_NONE;
2112 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
2113 int budget, int *done)
2116 struct sk_buff *skb;
2117 struct qeth_hdr *hdr;
2125 skb = qeth_core_get_next_skb(card,
2126 card->qdio.in_q->bufs[card->rx.b_index].buffer,
2127 &card->rx.b_element, &card->rx.e_offset, &hdr);
2132 skb->dev = card->dev;
2133 switch (hdr->hdr.l3.id) {
2134 case QETH_HEADER_TYPE_LAYER3:
2135 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
2138 if (is_vlan && !card->options.sniffer)
2139 vlan_gro_receive(&card->napi, card->vlangrp,
2142 napi_gro_receive(&card->napi, skb);
2144 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2145 skb->pkt_type = PACKET_HOST;
2146 skb->protocol = eth_type_trans(skb, skb->dev);
2148 netif_receive_skb(skb);
2151 dev_kfree_skb_any(skb);
2152 QETH_CARD_TEXT(card, 3, "inbunkno");
2153 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2158 card->stats.rx_packets++;
2159 card->stats.rx_bytes += len;
2164 static int qeth_l3_poll(struct napi_struct *napi, int budget)
2166 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2168 struct qeth_qdio_buffer *buffer;
2170 int new_budget = budget;
2172 if (card->options.performance_stats) {
2173 card->perf_stats.inbound_cnt++;
2174 card->perf_stats.inbound_start_time = qeth_get_micros();
2178 if (!card->rx.b_count) {
2179 card->rx.qdio_err = 0;
2180 card->rx.b_count = qdio_get_next_buffers(
2181 card->data.ccwdev, 0, &card->rx.b_index,
2182 &card->rx.qdio_err);
2183 if (card->rx.b_count <= 0) {
2184 card->rx.b_count = 0;
2187 card->rx.b_element =
2188 &card->qdio.in_q->bufs[card->rx.b_index]
2189 .buffer->element[0];
2190 card->rx.e_offset = 0;
2193 while (card->rx.b_count) {
2194 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2195 if (!(card->rx.qdio_err &&
2196 qeth_check_qdio_errors(card, buffer->buffer,
2197 card->rx.qdio_err, "qinerr")))
2198 work_done += qeth_l3_process_inbound_buffer(
2199 card, new_budget, &done);
2204 if (card->options.performance_stats)
2205 card->perf_stats.bufs_rec++;
2206 qeth_put_buffer_pool_entry(card,
2207 buffer->pool_entry);
2208 qeth_queue_input_buffer(card, card->rx.b_index);
2210 if (card->rx.b_count) {
2212 (card->rx.b_index + 1) %
2213 QDIO_MAX_BUFFERS_PER_Q;
2214 card->rx.b_element =
2216 ->bufs[card->rx.b_index]
2217 .buffer->element[0];
2218 card->rx.e_offset = 0;
2222 if (work_done >= budget)
2225 new_budget = budget - work_done;
2229 napi_complete(napi);
2230 if (qdio_start_irq(card->data.ccwdev, 0))
2231 napi_schedule(&card->napi);
2233 if (card->options.performance_stats)
2234 card->perf_stats.inbound_time += qeth_get_micros() -
2235 card->perf_stats.inbound_start_time;
2239 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2240 struct qeth_card *card)
2243 struct vlan_group *vg;
2250 for (i = 0; i < VLAN_N_VID; i++) {
2251 if (vlan_group_get_device(vg, i) == dev) {
2252 rc = QETH_VLAN_CARD;
2257 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2263 static int qeth_l3_verify_dev(struct net_device *dev)
2265 struct qeth_card *card;
2266 unsigned long flags;
2269 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2270 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2271 if (card->dev == dev) {
2272 rc = QETH_REAL_CARD;
2275 rc = qeth_l3_verify_vlan_dev(dev, card);
2279 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2284 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2286 struct qeth_card *card = NULL;
2289 rc = qeth_l3_verify_dev(dev);
2290 if (rc == QETH_REAL_CARD)
2291 card = dev->ml_priv;
2292 else if (rc == QETH_VLAN_CARD)
2293 card = vlan_dev_real_dev(dev)->ml_priv;
2294 if (card && card->options.layer2)
2297 QETH_CARD_TEXT_(card, 4, "%d", rc);
2301 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2305 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2306 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2308 qeth_set_allowed_threads(card, 0, 1);
2309 if (card->options.sniffer &&
2310 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2311 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2312 if (card->read.state == CH_STATE_UP &&
2313 card->write.state == CH_STATE_UP &&
2314 (card->state == CARD_STATE_UP)) {
2316 qeth_l3_stop(card->dev);
2319 dev_close(card->dev);
2322 if (!card->use_hard_stop) {
2323 rc = qeth_send_stoplan(card);
2325 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2327 card->state = CARD_STATE_SOFTSETUP;
2329 if (card->state == CARD_STATE_SOFTSETUP) {
2330 qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
2331 qeth_clear_ipacmd_list(card);
2332 card->state = CARD_STATE_HARDSETUP;
2334 if (card->state == CARD_STATE_HARDSETUP) {
2335 if (!card->use_hard_stop &&
2336 (card->info.type != QETH_CARD_TYPE_IQD)) {
2337 rc = qeth_l3_put_unique_id(card);
2339 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2341 qeth_qdio_clear_card(card, 0);
2342 qeth_clear_qdio_buffers(card);
2343 qeth_clear_working_pool_list(card);
2344 card->state = CARD_STATE_DOWN;
2346 if (card->state == CARD_STATE_DOWN) {
2347 qeth_clear_cmd_buffers(&card->read);
2348 qeth_clear_cmd_buffers(&card->write);
2350 card->use_hard_stop = 0;
2355 * test for and Switch promiscuous mode (on or off)
2356 * either for guestlan or HiperSocket Sniffer
2359 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2361 struct net_device *dev = card->dev;
2363 if (((dev->flags & IFF_PROMISC) &&
2364 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2365 (!(dev->flags & IFF_PROMISC) &&
2366 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2369 if (card->info.guestlan) { /* Guestlan trace */
2370 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2371 qeth_setadp_promisc_mode(card);
2372 } else if (card->options.sniffer && /* HiperSockets trace */
2373 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2374 if (dev->flags & IFF_PROMISC) {
2375 QETH_CARD_TEXT(card, 3, "+promisc");
2376 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2378 QETH_CARD_TEXT(card, 3, "-promisc");
2379 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2384 static void qeth_l3_set_multicast_list(struct net_device *dev)
2386 struct qeth_card *card = dev->ml_priv;
2388 QETH_CARD_TEXT(card, 3, "setmulti");
2389 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2390 (card->state != CARD_STATE_UP))
2392 if (!card->options.sniffer) {
2393 qeth_l3_delete_mc_addresses(card);
2394 qeth_l3_add_multicast_ipv4(card);
2395 #ifdef CONFIG_QETH_IPV6
2396 qeth_l3_add_multicast_ipv6(card);
2398 qeth_l3_set_ip_addr_list(card);
2399 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2402 qeth_l3_handle_promisc_mode(card);
2405 static const char *qeth_l3_arp_get_error_cause(int *rc)
2408 case QETH_IPA_ARP_RC_FAILED:
2410 return "operation failed";
2411 case QETH_IPA_ARP_RC_NOTSUPP:
2413 return "operation not supported";
2414 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2416 return "argument out of range";
2417 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2419 return "query operation not supported";
2420 case QETH_IPA_ARP_RC_Q_NO_DATA:
2422 return "no query data available";
2424 return "unknown error";
2428 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2433 QETH_CARD_TEXT(card, 3, "arpstnoe");
2436 * currently GuestLAN only supports the ARP assist function
2437 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2438 * thus we say EOPNOTSUPP for this ARP function
2440 if (card->info.guestlan)
2442 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2445 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2446 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2450 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2451 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2452 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2457 static void qeth_l3_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
2458 struct qeth_arp_query_data *qdata, int entry_size,
2465 entry_ptr = (char *)&qdata->data;
2466 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
2467 for (i = 0; i < qdata->no_entries; ++i) {
2468 /* strip off 32 bytes "media specific information" */
2469 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
2470 entry_ptr += entry_size;
2471 uentry_ptr += uentry_size;
2475 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2476 struct qeth_reply *reply, unsigned long data)
2478 struct qeth_ipa_cmd *cmd;
2479 struct qeth_arp_query_data *qdata;
2480 struct qeth_arp_query_info *qinfo;
2485 QETH_CARD_TEXT(card, 4, "arpquecb");
2487 qinfo = (struct qeth_arp_query_info *) reply->param;
2488 cmd = (struct qeth_ipa_cmd *) data;
2489 if (cmd->hdr.return_code) {
2490 QETH_CARD_TEXT_(card, 4, "qaer1%i", cmd->hdr.return_code);
2493 if (cmd->data.setassparms.hdr.return_code) {
2494 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2495 QETH_CARD_TEXT_(card, 4, "qaer2%i", cmd->hdr.return_code);
2498 qdata = &cmd->data.setassparms.data.query_arp;
2499 switch (qdata->reply_bits) {
2501 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
2502 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2503 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
2506 /* fall through to default */
2508 /* tr is the same as eth -> entry7 */
2509 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
2510 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2511 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
2514 /* check if there is enough room in userspace */
2515 if ((qinfo->udata_len - qinfo->udata_offset) <
2516 qdata->no_entries * uentry_size){
2517 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2518 cmd->hdr.return_code = -ENOMEM;
2521 QETH_CARD_TEXT_(card, 4, "anore%i",
2522 cmd->data.setassparms.hdr.number_of_replies);
2523 QETH_CARD_TEXT_(card, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
2524 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2526 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
2527 /* strip off "media specific information" */
2528 qeth_l3_copy_arp_entries_stripped(qinfo, qdata, entry_size,
2531 /*copy entries to user buffer*/
2532 memcpy(qinfo->udata + qinfo->udata_offset,
2533 (char *)&qdata->data, qdata->no_entries*uentry_size);
2535 qinfo->no_entries += qdata->no_entries;
2536 qinfo->udata_offset += (qdata->no_entries*uentry_size);
2537 /* check if all replies received ... */
2538 if (cmd->data.setassparms.hdr.seq_no <
2539 cmd->data.setassparms.hdr.number_of_replies)
2541 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2542 /* keep STRIP_ENTRIES flag so the user program can distinguish
2543 * stripped entries from normal ones */
2544 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2545 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2546 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2550 memcpy(qinfo->udata, &i, 4);
2554 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2555 struct qeth_cmd_buffer *iob, int len,
2556 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2560 QETH_CARD_TEXT(card, 4, "sendarp");
2562 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2563 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2564 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2565 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2566 reply_cb, reply_param);
2569 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2571 struct qeth_cmd_buffer *iob;
2572 struct qeth_arp_query_info qinfo = {0, };
2576 QETH_CARD_TEXT(card, 3, "arpquery");
2578 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2579 IPA_ARP_PROCESSING)) {
2582 /* get size of userspace buffer and mask_bits -> 6 bytes */
2583 if (copy_from_user(&qinfo, udata, 6))
2585 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2588 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2589 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2590 IPA_CMD_ASS_ARP_QUERY_INFO,
2591 sizeof(int), QETH_PROT_IPV4);
2593 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2594 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2595 qeth_l3_arp_query_cb, (void *)&qinfo);
2598 QETH_DBF_MESSAGE(2, "Error while querying ARP cache on %s: %s "
2599 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2600 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2601 if (copy_to_user(udata, qinfo.udata, 4))
2604 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
2611 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2612 struct qeth_arp_cache_entry *entry)
2614 struct qeth_cmd_buffer *iob;
2619 QETH_CARD_TEXT(card, 3, "arpadent");
2622 * currently GuestLAN only supports the ARP assist function
2623 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2624 * thus we say EOPNOTSUPP for this ARP function
2626 if (card->info.guestlan)
2628 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2632 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2633 IPA_CMD_ASS_ARP_ADD_ENTRY,
2634 sizeof(struct qeth_arp_cache_entry),
2636 rc = qeth_l3_send_setassparms(card, iob,
2637 sizeof(struct qeth_arp_cache_entry),
2638 (unsigned long) entry,
2639 qeth_l3_default_setassparms_cb, NULL);
2642 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2643 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2644 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2645 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2650 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2651 struct qeth_arp_cache_entry *entry)
2653 struct qeth_cmd_buffer *iob;
2654 char buf[16] = {0, };
2658 QETH_CARD_TEXT(card, 3, "arprment");
2661 * currently GuestLAN only supports the ARP assist function
2662 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2663 * thus we say EOPNOTSUPP for this ARP function
2665 if (card->info.guestlan)
2667 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2670 memcpy(buf, entry, 12);
2671 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2672 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2675 rc = qeth_l3_send_setassparms(card, iob,
2676 12, (unsigned long)buf,
2677 qeth_l3_default_setassparms_cb, NULL);
2681 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2682 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2683 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2684 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2689 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2694 QETH_CARD_TEXT(card, 3, "arpflush");
2697 * currently GuestLAN only supports the ARP assist function
2698 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2699 * thus we say EOPNOTSUPP for this ARP function
2701 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2703 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2706 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2707 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2710 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2711 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2712 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2717 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2719 struct qeth_card *card = dev->ml_priv;
2720 struct qeth_arp_cache_entry arp_entry;
2721 struct mii_ioctl_data *mii_data;
2727 if ((card->state != CARD_STATE_UP) &&
2728 (card->state != CARD_STATE_SOFTSETUP))
2732 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2733 if (!capable(CAP_NET_ADMIN)) {
2737 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2739 case SIOC_QETH_ARP_QUERY_INFO:
2740 if (!capable(CAP_NET_ADMIN)) {
2744 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2746 case SIOC_QETH_ARP_ADD_ENTRY:
2747 if (!capable(CAP_NET_ADMIN)) {
2751 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2752 sizeof(struct qeth_arp_cache_entry)))
2755 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2757 case SIOC_QETH_ARP_REMOVE_ENTRY:
2758 if (!capable(CAP_NET_ADMIN)) {
2762 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2763 sizeof(struct qeth_arp_cache_entry)))
2766 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2768 case SIOC_QETH_ARP_FLUSH_CACHE:
2769 if (!capable(CAP_NET_ADMIN)) {
2773 rc = qeth_l3_arp_flush_cache(card);
2775 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2776 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2778 case SIOC_QETH_GET_CARD_TYPE:
2779 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2780 card->info.type == QETH_CARD_TYPE_OSX) &&
2781 !card->info.guestlan)
2786 mii_data = if_mii(rq);
2787 mii_data->phy_id = 0;
2790 mii_data = if_mii(rq);
2791 if (mii_data->phy_id != 0)
2794 mii_data->val_out = qeth_mdio_read(dev,
2802 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2806 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2808 int cast_type = RTN_UNSPEC;
2810 if (skb_dst(skb) && skb_dst(skb)->neighbour) {
2811 cast_type = skb_dst(skb)->neighbour->type;
2812 if ((cast_type == RTN_BROADCAST) ||
2813 (cast_type == RTN_MULTICAST) ||
2814 (cast_type == RTN_ANYCAST))
2819 /* try something else */
2820 if (skb->protocol == ETH_P_IPV6)
2821 return (skb_network_header(skb)[24] == 0xff) ?
2823 else if (skb->protocol == ETH_P_IP)
2824 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2827 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2828 return RTN_BROADCAST;
2832 hdr_mac = *((u16 *)skb->data);
2834 switch (card->info.link_type) {
2835 case QETH_LINK_TYPE_HSTR:
2836 case QETH_LINK_TYPE_LANE_TR:
2837 if ((hdr_mac == QETH_TR_MAC_NC) ||
2838 (hdr_mac == QETH_TR_MAC_C))
2839 return RTN_MULTICAST;
2841 /* eth or so multicast? */
2843 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2844 (hdr_mac == QETH_ETH_MAC_V6))
2845 return RTN_MULTICAST;
2851 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2852 struct sk_buff *skb, int ipv, int cast_type)
2854 memset(hdr, 0, sizeof(struct qeth_hdr));
2855 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2856 hdr->hdr.l3.ext_flags = 0;
2859 * before we're going to overwrite this location with next hop ip.
2860 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2862 if (card->vlangrp && vlan_tx_tag_present(skb)) {
2863 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2864 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2866 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2867 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2870 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2873 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2874 memset(hdr->hdr.l3.dest_addr, 0, 12);
2875 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2876 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2877 *((u32 *) skb_dst(skb)->neighbour->primary_key);
2879 /* fill in destination address used in ip header */
2880 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2883 } else if (ipv == 6) {
2885 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2886 if (card->info.type == QETH_CARD_TYPE_IQD)
2887 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2888 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2889 memcpy(hdr->hdr.l3.dest_addr,
2890 skb_dst(skb)->neighbour->primary_key, 16);
2892 /* fill in destination address used in ip header */
2893 memcpy(hdr->hdr.l3.dest_addr,
2894 &ipv6_hdr(skb)->daddr, 16);
2898 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2899 !memcmp(skb->data + sizeof(struct qeth_hdr) +
2900 sizeof(__u16), skb->dev->broadcast, 6)) {
2901 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2903 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2904 skb->dev->broadcast, 6)) {
2906 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2909 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2910 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2911 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2916 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2917 struct qeth_hdr *hdr, struct sk_buff *skb)
2919 struct iphdr *iph = ip_hdr(skb);
2921 /* tcph->check contains already the pseudo hdr checksum
2922 * so just set the header flags
2924 if (iph->protocol == IPPROTO_UDP)
2925 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2926 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
2927 if (card->options.performance_stats)
2928 card->perf_stats.tx_csum++;
2931 static void qeth_tso_fill_header(struct qeth_card *card,
2932 struct qeth_hdr *qhdr, struct sk_buff *skb)
2934 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2935 struct tcphdr *tcph = tcp_hdr(skb);
2936 struct iphdr *iph = ip_hdr(skb);
2937 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2939 /*fix header to TSO values ...*/
2940 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2941 /*set values which are fix for the first approach ...*/
2942 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2943 hdr->ext.imb_hdr_no = 1;
2944 hdr->ext.hdr_type = 1;
2945 hdr->ext.hdr_version = 1;
2946 hdr->ext.hdr_len = 28;
2947 /*insert non-fix values */
2948 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2949 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2950 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2951 sizeof(struct qeth_hdr_tso));
2953 if (skb->protocol == ETH_P_IPV6) {
2954 ip6h->payload_len = 0;
2955 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2958 /*OSA want us to set these values ...*/
2959 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2966 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2968 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2969 tcp_hdr(skb)->doff * 4;
2970 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
2971 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
2972 elements += skb_shinfo(skb)->nr_frags;
2976 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2980 struct qeth_hdr *hdr = NULL;
2981 int elements_needed = 0;
2983 struct qeth_card *card = dev->ml_priv;
2984 struct sk_buff *new_skb = NULL;
2985 int ipv = qeth_get_ip_version(skb);
2986 int cast_type = qeth_l3_get_cast_type(card, skb);
2987 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2988 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2989 int tx_bytes = skb->len;
2990 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
2991 int data_offset = -1;
2994 if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
2995 card->options.sniffer)
2998 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2999 card->stats.tx_carrier_errors++;
3003 if ((cast_type == RTN_BROADCAST) &&
3004 (card->info.broadcast_capable == 0))
3007 if (card->options.performance_stats) {
3008 card->perf_stats.outbound_cnt++;
3009 card->perf_stats.outbound_start_time = qeth_get_micros();
3012 if (skb_is_gso(skb))
3013 large_send = card->options.large_send;
3015 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
3016 (skb_shinfo(skb)->nr_frags == 0)) {
3018 data_offset = ETH_HLEN;
3019 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3024 /* create a clone with writeable headroom */
3025 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
3031 if (card->info.type == QETH_CARD_TYPE_IQD) {
3032 if (data_offset < 0)
3033 skb_pull(new_skb, ETH_HLEN);
3036 if (card->dev->type == ARPHRD_IEEE802_TR)
3037 skb_pull(new_skb, TR_HLEN);
3039 skb_pull(new_skb, ETH_HLEN);
3042 if (ipv == 6 && card->vlangrp &&
3043 vlan_tx_tag_present(new_skb)) {
3044 skb_push(new_skb, VLAN_HLEN);
3045 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
3046 skb_copy_to_linear_data_offset(new_skb, 4,
3047 new_skb->data + 8, 4);
3048 skb_copy_to_linear_data_offset(new_skb, 8,
3049 new_skb->data + 12, 4);
3050 tag = (u16 *)(new_skb->data + 12);
3051 *tag = __constant_htons(ETH_P_8021Q);
3052 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
3053 new_skb->vlan_tci = 0;
3057 netif_stop_queue(dev);
3059 /* fix hardware limitation: as long as we do not have sbal
3060 * chaining we can not send long frag lists
3062 if (large_send == QETH_LARGE_SEND_TSO) {
3063 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3064 if (skb_linearize(new_skb))
3066 if (card->options.performance_stats)
3067 card->perf_stats.tx_lin++;
3071 if ((large_send == QETH_LARGE_SEND_TSO) &&
3072 (cast_type == RTN_UNSPEC)) {
3073 hdr = (struct qeth_hdr *)skb_push(new_skb,
3074 sizeof(struct qeth_hdr_tso));
3075 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3076 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3077 qeth_tso_fill_header(card, hdr, new_skb);
3080 if (data_offset < 0) {
3081 hdr = (struct qeth_hdr *)skb_push(new_skb,
3082 sizeof(struct qeth_hdr));
3083 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3086 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3088 hdr->hdr.l3.length = new_skb->len - data_offset;
3091 if (skb->ip_summed == CHECKSUM_PARTIAL)
3092 qeth_l3_hdr_csum(card, hdr, new_skb);
3095 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3098 if (data_offset >= 0)
3099 kmem_cache_free(qeth_core_header_cache, hdr);
3102 elements_needed += elems;
3103 nr_frags = skb_shinfo(new_skb)->nr_frags;
3105 if (card->info.type != QETH_CARD_TYPE_IQD) {
3107 if (large_send == QETH_LARGE_SEND_TSO)
3108 len = ((unsigned long)tcp_hdr(new_skb) +
3109 tcp_hdr(new_skb)->doff * 4) -
3110 (unsigned long)new_skb->data;
3112 len = sizeof(struct qeth_hdr_layer3);
3114 if (qeth_hdr_chk_and_bounce(new_skb, len))
3116 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3119 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3120 elements_needed, data_offset, 0);
3123 card->stats.tx_packets++;
3124 card->stats.tx_bytes += tx_bytes;
3126 dev_kfree_skb_any(skb);
3127 if (card->options.performance_stats) {
3128 if (large_send != QETH_LARGE_SEND_NO) {
3129 card->perf_stats.large_send_bytes += tx_bytes;
3130 card->perf_stats.large_send_cnt++;
3133 card->perf_stats.sg_skbs_sent++;
3134 /* nr_frags + skb->data */
3135 card->perf_stats.sg_frags_sent += nr_frags + 1;
3140 if (data_offset >= 0)
3141 kmem_cache_free(qeth_core_header_cache, hdr);
3145 dev_kfree_skb_any(new_skb);
3146 return NETDEV_TX_BUSY;
3151 netif_wake_queue(dev);
3152 if (card->options.performance_stats)
3153 card->perf_stats.outbound_time += qeth_get_micros() -
3154 card->perf_stats.outbound_start_time;
3158 card->stats.tx_dropped++;
3159 card->stats.tx_errors++;
3160 if ((new_skb != skb) && new_skb)
3161 dev_kfree_skb_any(new_skb);
3162 dev_kfree_skb_any(skb);
3163 netif_wake_queue(dev);
3164 return NETDEV_TX_OK;
3167 static int qeth_l3_open(struct net_device *dev)
3169 struct qeth_card *card = dev->ml_priv;
3172 QETH_CARD_TEXT(card, 4, "qethopen");
3173 if (card->state != CARD_STATE_SOFTSETUP)
3175 card->data.state = CH_STATE_UP;
3176 card->state = CARD_STATE_UP;
3177 netif_start_queue(dev);
3179 if (!card->lan_online && netif_carrier_ok(dev))
3180 netif_carrier_off(dev);
3181 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3182 napi_enable(&card->napi);
3183 napi_schedule(&card->napi);
3189 static int qeth_l3_stop(struct net_device *dev)
3191 struct qeth_card *card = dev->ml_priv;
3193 QETH_CARD_TEXT(card, 4, "qethstop");
3194 netif_tx_disable(dev);
3195 if (card->state == CARD_STATE_UP) {
3196 card->state = CARD_STATE_SOFTSETUP;
3197 napi_disable(&card->napi);
3202 static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
3204 struct qeth_card *card = dev->ml_priv;
3206 return (card->options.checksum_type == HW_CHECKSUMMING);
3209 static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
3211 struct qeth_card *card = dev->ml_priv;
3212 enum qeth_checksum_types csum_type;
3215 csum_type = HW_CHECKSUMMING;
3217 csum_type = SW_CHECKSUMMING;
3219 return qeth_l3_set_rx_csum(card, csum_type);
3222 static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
3224 struct qeth_card *card = dev->ml_priv;
3228 rc = qeth_l3_set_large_send(card, QETH_LARGE_SEND_TSO);
3230 dev->features &= ~NETIF_F_TSO;
3231 card->options.large_send = QETH_LARGE_SEND_NO;
3236 static int qeth_l3_ethtool_set_tx_csum(struct net_device *dev, u32 data)
3238 struct qeth_card *card = dev->ml_priv;
3241 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3242 dev->features |= NETIF_F_IP_CSUM;
3246 dev->features &= ~NETIF_F_IP_CSUM;
3251 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3252 .get_link = ethtool_op_get_link,
3253 .get_tx_csum = ethtool_op_get_tx_csum,
3254 .set_tx_csum = qeth_l3_ethtool_set_tx_csum,
3255 .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
3256 .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
3257 .get_sg = ethtool_op_get_sg,
3258 .set_sg = ethtool_op_set_sg,
3259 .get_tso = ethtool_op_get_tso,
3260 .set_tso = qeth_l3_ethtool_set_tso,
3261 .get_strings = qeth_core_get_strings,
3262 .get_ethtool_stats = qeth_core_get_ethtool_stats,
3263 .get_sset_count = qeth_core_get_sset_count,
3264 .get_drvinfo = qeth_core_get_drvinfo,
3265 .get_settings = qeth_core_ethtool_get_settings,
3269 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3270 * NOARP on the netdevice is no option because it also turns off neighbor
3271 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3272 * arp resolution but we want the hard header (packet socket will work
3275 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3277 n->nud_state = NUD_NOARP;
3278 memcpy(n->ha, "FAKELL", 6);
3279 n->output = n->ops->connected_output;
3284 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3286 if (np->tbl->family == AF_INET)
3287 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3292 static const struct net_device_ops qeth_l3_netdev_ops = {
3293 .ndo_open = qeth_l3_open,
3294 .ndo_stop = qeth_l3_stop,
3295 .ndo_get_stats = qeth_get_stats,
3296 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3297 .ndo_validate_addr = eth_validate_addr,
3298 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3299 .ndo_do_ioctl = qeth_l3_do_ioctl,
3300 .ndo_change_mtu = qeth_change_mtu,
3301 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3302 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3303 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3304 .ndo_tx_timeout = qeth_tx_timeout,
3307 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3308 .ndo_open = qeth_l3_open,
3309 .ndo_stop = qeth_l3_stop,
3310 .ndo_get_stats = qeth_get_stats,
3311 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3312 .ndo_validate_addr = eth_validate_addr,
3313 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3314 .ndo_do_ioctl = qeth_l3_do_ioctl,
3315 .ndo_change_mtu = qeth_change_mtu,
3316 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3317 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3318 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3319 .ndo_tx_timeout = qeth_tx_timeout,
3320 .ndo_neigh_setup = qeth_l3_neigh_setup,
3323 static int qeth_l3_setup_netdev(struct qeth_card *card)
3325 if (card->info.type == QETH_CARD_TYPE_OSD ||
3326 card->info.type == QETH_CARD_TYPE_OSX) {
3327 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3328 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3330 card->dev = alloc_trdev(0);
3334 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3336 card->dev = alloc_etherdev(0);
3339 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3341 /*IPv6 address autoconfiguration stuff*/
3342 qeth_l3_get_unique_id(card);
3343 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3344 card->dev->dev_id = card->info.unique_id &
3347 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3348 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3351 card->dev->flags |= IFF_NOARP;
3352 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3353 qeth_l3_iqd_read_initial_mac(card);
3357 card->dev->ml_priv = card;
3358 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3359 card->dev->mtu = card->info.initial_mtu;
3360 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3361 card->dev->features |= NETIF_F_HW_VLAN_TX |
3362 NETIF_F_HW_VLAN_RX |
3363 NETIF_F_HW_VLAN_FILTER;
3364 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3365 card->dev->gso_max_size = 15 * PAGE_SIZE;
3367 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3368 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3369 return register_netdev(card->dev);
3372 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3374 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3376 qeth_l3_create_device_attributes(&gdev->dev);
3377 card->options.layer2 = 0;
3378 card->discipline.start_poll = qeth_qdio_start_poll;
3379 card->discipline.input_handler = (qdio_handler_t *)
3380 qeth_qdio_input_handler;
3381 card->discipline.output_handler = (qdio_handler_t *)
3382 qeth_qdio_output_handler;
3383 card->discipline.recover = qeth_l3_recover;
3387 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3389 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3391 qeth_l3_remove_device_attributes(&cgdev->dev);
3393 qeth_set_allowed_threads(card, 0, 1);
3394 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3396 if (cgdev->state == CCWGROUP_ONLINE) {
3397 card->use_hard_stop = 1;
3398 qeth_l3_set_offline(cgdev);
3402 unregister_netdev(card->dev);
3406 qeth_l3_clear_ip_list(card, 0, 0);
3407 qeth_l3_clear_ipato_list(card);
3411 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3413 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3415 enum qeth_card_states recover_flag;
3418 mutex_lock(&card->discipline_mutex);
3419 mutex_lock(&card->conf_mutex);
3420 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3421 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3423 recover_flag = card->state;
3424 rc = qeth_core_hardsetup_card(card);
3426 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3431 qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3433 if (!card->dev && qeth_l3_setup_netdev(card)) {
3438 card->state = CARD_STATE_HARDSETUP;
3439 memset(&card->rx, 0, sizeof(struct qeth_rx));
3440 qeth_print_status_message(card);
3443 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3445 rc = qeth_send_startlan(card);
3447 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3449 dev_warn(&card->gdev->dev,
3450 "The LAN is offline\n");
3451 card->lan_online = 0;
3457 card->lan_online = 1;
3459 rc = qeth_l3_setadapter_parms(card);
3461 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3462 if (!card->options.sniffer) {
3463 rc = qeth_l3_start_ipassists(card);
3465 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3466 qeth_l3_set_large_send(card, card->options.large_send);
3467 rc = qeth_l3_setrouting_v4(card);
3469 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3470 rc = qeth_l3_setrouting_v6(card);
3472 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3474 netif_tx_disable(card->dev);
3476 rc = qeth_init_qdio_queues(card);
3478 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3482 card->state = CARD_STATE_SOFTSETUP;
3483 netif_carrier_on(card->dev);
3485 qeth_set_allowed_threads(card, 0xffffffff, 0);
3486 qeth_l3_set_ip_addr_list(card);
3487 if (recover_flag == CARD_STATE_RECOVER) {
3489 qeth_l3_open(card->dev);
3492 dev_open(card->dev);
3495 qeth_l3_set_multicast_list(card->dev);
3497 /* let user_space know that device is online */
3498 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3500 mutex_unlock(&card->conf_mutex);
3501 mutex_unlock(&card->discipline_mutex);
3504 card->use_hard_stop = 1;
3505 qeth_l3_stop_card(card, 0);
3506 ccw_device_set_offline(CARD_DDEV(card));
3507 ccw_device_set_offline(CARD_WDEV(card));
3508 ccw_device_set_offline(CARD_RDEV(card));
3509 if (recover_flag == CARD_STATE_RECOVER)
3510 card->state = CARD_STATE_RECOVER;
3512 card->state = CARD_STATE_DOWN;
3513 mutex_unlock(&card->conf_mutex);
3514 mutex_unlock(&card->discipline_mutex);
3518 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3520 return __qeth_l3_set_online(gdev, 0);
3523 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3526 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3527 int rc = 0, rc2 = 0, rc3 = 0;
3528 enum qeth_card_states recover_flag;
3530 mutex_lock(&card->discipline_mutex);
3531 mutex_lock(&card->conf_mutex);
3532 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3533 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3535 if (card->dev && netif_carrier_ok(card->dev))
3536 netif_carrier_off(card->dev);
3537 recover_flag = card->state;
3538 qeth_l3_stop_card(card, recovery_mode);
3539 rc = ccw_device_set_offline(CARD_DDEV(card));
3540 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3541 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3543 rc = (rc2) ? rc2 : rc3;
3545 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3546 if (recover_flag == CARD_STATE_UP)
3547 card->state = CARD_STATE_RECOVER;
3548 /* let user_space know that device is offline */
3549 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3550 mutex_unlock(&card->conf_mutex);
3551 mutex_unlock(&card->discipline_mutex);
3555 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3557 return __qeth_l3_set_offline(cgdev, 0);
3560 static int qeth_l3_recover(void *ptr)
3562 struct qeth_card *card;
3565 card = (struct qeth_card *) ptr;
3566 QETH_CARD_TEXT(card, 2, "recover1");
3567 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3568 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3570 QETH_CARD_TEXT(card, 2, "recover2");
3571 dev_warn(&card->gdev->dev,
3572 "A recovery process has been started for the device\n");
3573 card->use_hard_stop = 1;
3574 __qeth_l3_set_offline(card->gdev, 1);
3575 rc = __qeth_l3_set_online(card->gdev, 1);
3577 dev_info(&card->gdev->dev,
3578 "Device successfully recovered!\n");
3581 dev_close(card->dev);
3583 dev_warn(&card->gdev->dev, "The qeth device driver "
3584 "failed to recover an error on the device\n");
3586 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3587 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3591 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3593 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3594 qeth_l3_clear_ip_list(card, 0, 0);
3595 qeth_qdio_clear_card(card, 0);
3596 qeth_clear_qdio_buffers(card);
3599 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3601 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3604 netif_device_detach(card->dev);
3605 qeth_set_allowed_threads(card, 0, 1);
3606 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3607 if (gdev->state == CCWGROUP_OFFLINE)
3609 if (card->state == CARD_STATE_UP) {
3610 card->use_hard_stop = 1;
3611 __qeth_l3_set_offline(card->gdev, 1);
3613 __qeth_l3_set_offline(card->gdev, 0);
3617 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3619 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3622 if (gdev->state == CCWGROUP_OFFLINE)
3625 if (card->state == CARD_STATE_RECOVER) {
3626 rc = __qeth_l3_set_online(card->gdev, 1);
3629 dev_close(card->dev);
3633 rc = __qeth_l3_set_online(card->gdev, 0);
3635 qeth_set_allowed_threads(card, 0xffffffff, 0);
3637 netif_device_attach(card->dev);
3639 dev_warn(&card->gdev->dev, "The qeth device driver "
3640 "failed to recover an error on the device\n");
3644 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3645 .probe = qeth_l3_probe_device,
3646 .remove = qeth_l3_remove_device,
3647 .set_online = qeth_l3_set_online,
3648 .set_offline = qeth_l3_set_offline,
3649 .shutdown = qeth_l3_shutdown,
3650 .freeze = qeth_l3_pm_suspend,
3651 .thaw = qeth_l3_pm_resume,
3652 .restore = qeth_l3_pm_resume,
3654 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3656 static int qeth_l3_ip_event(struct notifier_block *this,
3657 unsigned long event, void *ptr)
3659 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3660 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3661 struct qeth_ipaddr *addr;
3662 struct qeth_card *card;
3664 if (dev_net(dev) != &init_net)
3667 card = qeth_l3_get_card_from_dev(dev);
3668 QETH_CARD_TEXT(card, 3, "ipevent");
3672 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3674 addr->u.a4.addr = ifa->ifa_address;
3675 addr->u.a4.mask = ifa->ifa_mask;
3676 addr->type = QETH_IP_TYPE_NORMAL;
3682 if (!qeth_l3_add_ip(card, addr))
3686 if (!qeth_l3_delete_ip(card, addr))
3692 qeth_l3_set_ip_addr_list(card);
3697 static struct notifier_block qeth_l3_ip_notifier = {
3702 #ifdef CONFIG_QETH_IPV6
3704 * IPv6 event handler
3706 static int qeth_l3_ip6_event(struct notifier_block *this,
3707 unsigned long event, void *ptr)
3709 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3710 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3711 struct qeth_ipaddr *addr;
3712 struct qeth_card *card;
3715 card = qeth_l3_get_card_from_dev(dev);
3718 QETH_CARD_TEXT(card, 3, "ip6event");
3719 if (!qeth_is_supported(card, IPA_IPV6))
3722 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3724 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3725 addr->u.a6.pfxlen = ifa->prefix_len;
3726 addr->type = QETH_IP_TYPE_NORMAL;
3732 if (!qeth_l3_add_ip(card, addr))
3736 if (!qeth_l3_delete_ip(card, addr))
3742 qeth_l3_set_ip_addr_list(card);
3747 static struct notifier_block qeth_l3_ip6_notifier = {
3753 static int qeth_l3_register_notifiers(void)
3757 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3758 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3761 #ifdef CONFIG_QETH_IPV6
3762 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3764 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3768 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3773 static void qeth_l3_unregister_notifiers(void)
3776 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3777 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3778 #ifdef CONFIG_QETH_IPV6
3779 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3780 #endif /* QETH_IPV6 */
3783 static int __init qeth_l3_init(void)
3787 pr_info("register layer 3 discipline\n");
3788 rc = qeth_l3_register_notifiers();
3792 static void __exit qeth_l3_exit(void)
3794 qeth_l3_unregister_notifiers();
3795 pr_info("unregister layer 3 discipline\n");
3798 module_init(qeth_l3_init);
3799 module_exit(qeth_l3_exit);
3800 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3801 MODULE_DESCRIPTION("qeth layer 3 discipline");
3802 MODULE_LICENSE("GPL");