2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/bitops.h>
15 #include <linux/string.h>
16 #include <linux/errno.h>
17 #include <linux/kernel.h>
18 #include <linux/etherdevice.h>
20 #include <linux/ipv6.h>
21 #include <linux/inetdevice.h>
22 #include <linux/igmp.h>
23 #include <linux/slab.h>
24 #include <linux/if_vlan.h>
28 #include <net/route.h>
29 #include <net/ip6_fib.h>
30 #include <net/ip6_checksum.h>
31 #include <net/iucv/af_iucv.h>
32 #include <linux/hashtable.h>
37 static int qeth_l3_set_offline(struct ccwgroup_device *);
38 static int qeth_l3_stop(struct net_device *);
39 static void qeth_l3_set_multicast_list(struct net_device *);
40 static int qeth_l3_register_addr_entry(struct qeth_card *,
41 struct qeth_ipaddr *);
42 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
43 struct qeth_ipaddr *);
45 static int qeth_l3_isxdigit(char *buf)
48 if (!isxdigit(*buf++))
54 static void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
56 sprintf(buf, "%pI4", addr);
59 static int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
61 int count = 0, rc = 0;
65 rc = sscanf(buf, "%u.%u.%u.%u%c",
66 &in[0], &in[1], &in[2], &in[3], &c);
67 if (rc != 4 && (rc != 5 || c != '\n'))
69 for (count = 0; count < 4; count++) {
72 addr[count] = in[count];
77 static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
79 sprintf(buf, "%pI6", addr);
82 static int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
84 const char *end, *end_tmp, *start;
87 int num2, cnt, out, found, save_cnt;
88 unsigned short in_tmp[8] = {0, };
90 cnt = out = found = save_cnt = num2 = 0;
95 end = strchr(start, ':');
97 end = buf + strlen(buf);
98 end_tmp = strchr(start, '\n');
105 if ((end - start) > 4)
107 memcpy(num, start, end - start);
108 if (!qeth_l3_isxdigit(num))
110 sscanf(start, "%x", &num2);
112 in_tmp[save_cnt++] = num2;
124 if (cnt + save_cnt > 8)
128 in[cnt--] = in_tmp[--save_cnt];
132 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
135 if (proto == QETH_PROT_IPV4)
136 qeth_l3_ipaddr4_to_string(addr, buf);
137 else if (proto == QETH_PROT_IPV6)
138 qeth_l3_ipaddr6_to_string(addr, buf);
141 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
144 if (proto == QETH_PROT_IPV4)
145 return qeth_l3_string_to_ipaddr4(buf, addr);
146 else if (proto == QETH_PROT_IPV6)
147 return qeth_l3_string_to_ipaddr6(buf, addr);
152 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
157 for (i = 0; i < len; ++i) {
159 for (j = 7; j >= 0; --j) {
160 bits[i*8 + j] = octet & 1;
166 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
167 struct qeth_ipaddr *addr)
169 struct qeth_ipato_entry *ipatoe;
170 u8 addr_bits[128] = {0, };
171 u8 ipatoe_bits[128] = {0, };
174 if (!card->ipato.enabled)
177 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
178 (addr->proto == QETH_PROT_IPV4)? 4:16);
179 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
180 if (addr->proto != ipatoe->proto)
182 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
183 (ipatoe->proto == QETH_PROT_IPV4) ?
185 if (addr->proto == QETH_PROT_IPV4)
186 rc = !memcmp(addr_bits, ipatoe_bits,
187 min(32, ipatoe->mask_bits));
189 rc = !memcmp(addr_bits, ipatoe_bits,
190 min(128, ipatoe->mask_bits));
195 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
197 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
204 qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr *addr1, struct qeth_ipaddr *addr2)
206 return addr1->proto == addr2->proto &&
207 !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) &&
208 !memcmp(&addr1->mac, &addr2->mac, sizeof(addr1->mac));
211 static struct qeth_ipaddr *
212 qeth_l3_ip_from_hash(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
214 struct qeth_ipaddr *addr;
216 if (tmp_addr->is_multicast) {
217 hash_for_each_possible(card->ip_mc_htable, addr,
218 hnode, qeth_l3_ipaddr_hash(tmp_addr))
219 if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
222 hash_for_each_possible(card->ip_htable, addr,
223 hnode, qeth_l3_ipaddr_hash(tmp_addr))
224 if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
231 int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
234 struct qeth_ipaddr *addr;
236 QETH_CARD_TEXT(card, 4, "delip");
238 if (tmp_addr->proto == QETH_PROT_IPV4)
239 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
241 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
242 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
245 addr = qeth_l3_ip_from_hash(card, tmp_addr);
250 if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
252 if (addr->in_progress)
255 if (!qeth_card_hw_is_reachable(card)) {
256 addr->disp_flag = QETH_DISP_ADDR_DELETE;
260 rc = qeth_l3_deregister_addr_entry(card, addr);
262 hash_del(&addr->hnode);
268 int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
271 struct qeth_ipaddr *addr;
273 QETH_CARD_TEXT(card, 4, "addip");
275 if (tmp_addr->proto == QETH_PROT_IPV4)
276 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
278 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
279 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
282 addr = qeth_l3_ip_from_hash(card, tmp_addr);
284 addr = qeth_l3_get_addr_buffer(tmp_addr->proto);
288 memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr));
289 addr->ref_counter = 1;
291 if (addr->type == QETH_IP_TYPE_NORMAL &&
292 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
293 QETH_CARD_TEXT(card, 2, "tkovaddr");
294 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
296 hash_add(card->ip_htable, &addr->hnode,
297 qeth_l3_ipaddr_hash(addr));
299 if (!qeth_card_hw_is_reachable(card)) {
300 addr->disp_flag = QETH_DISP_ADDR_ADD;
304 /* qeth_l3_register_addr_entry can go to sleep
305 * if we add a IPV4 addr. It is caused by the reason
306 * that SETIP ipa cmd starts ARP staff for IPV4 addr.
307 * Thus we should unlock spinlock, and make a protection
308 * using in_progress variable to indicate that there is
309 * an hardware operation with this IPV4 address
311 if (addr->proto == QETH_PROT_IPV4) {
312 addr->in_progress = 1;
313 spin_unlock_bh(&card->ip_lock);
314 rc = qeth_l3_register_addr_entry(card, addr);
315 spin_lock_bh(&card->ip_lock);
316 addr->in_progress = 0;
318 rc = qeth_l3_register_addr_entry(card, addr);
320 if (!rc || (rc == IPA_RC_DUPLICATE_IP_ADDRESS) ||
321 (rc == IPA_RC_LAN_OFFLINE)) {
322 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
323 if (addr->ref_counter < 1) {
324 qeth_l3_delete_ip(card, addr);
328 hash_del(&addr->hnode);
332 if (addr->type == QETH_IP_TYPE_NORMAL)
340 struct qeth_ipaddr *qeth_l3_get_addr_buffer(
341 enum qeth_prot_versions prot)
343 struct qeth_ipaddr *addr;
345 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
349 addr->type = QETH_IP_TYPE_NORMAL;
350 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
356 static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
358 struct qeth_ipaddr *addr;
359 struct hlist_node *tmp;
362 QETH_CARD_TEXT(card, 4, "clearip");
364 if (recover && card->options.sniffer)
367 spin_lock_bh(&card->ip_lock);
369 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
371 hash_del(&addr->hnode);
375 addr->disp_flag = QETH_DISP_ADDR_ADD;
378 spin_unlock_bh(&card->ip_lock);
380 spin_lock_bh(&card->mclock);
382 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
383 hash_del(&addr->hnode);
387 spin_unlock_bh(&card->mclock);
391 static void qeth_l3_recover_ip(struct qeth_card *card)
393 struct qeth_ipaddr *addr;
394 struct hlist_node *tmp;
398 QETH_CARD_TEXT(card, 4, "recovrip");
400 spin_lock_bh(&card->ip_lock);
402 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
403 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
404 qeth_l3_deregister_addr_entry(card, addr);
405 hash_del(&addr->hnode);
407 } else if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
408 if (addr->proto == QETH_PROT_IPV4) {
409 addr->in_progress = 1;
410 spin_unlock_bh(&card->ip_lock);
411 rc = qeth_l3_register_addr_entry(card, addr);
412 spin_lock_bh(&card->ip_lock);
413 addr->in_progress = 0;
415 rc = qeth_l3_register_addr_entry(card, addr);
418 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
419 if (addr->ref_counter < 1)
420 qeth_l3_delete_ip(card, addr);
422 hash_del(&addr->hnode);
428 spin_unlock_bh(&card->ip_lock);
432 static int qeth_l3_send_setdelmc(struct qeth_card *card,
433 struct qeth_ipaddr *addr, int ipacmd)
436 struct qeth_cmd_buffer *iob;
437 struct qeth_ipa_cmd *cmd;
439 QETH_CARD_TEXT(card, 4, "setdelmc");
441 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
444 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
445 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
446 if (addr->proto == QETH_PROT_IPV6)
447 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
448 sizeof(struct in6_addr));
450 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
452 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
457 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
460 for (i = 0; i < 16; i++) {
465 netmask[i] = (u8)(0xFF00 >> j);
471 static int qeth_l3_send_setdelip(struct qeth_card *card,
472 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
475 struct qeth_cmd_buffer *iob;
476 struct qeth_ipa_cmd *cmd;
479 QETH_CARD_TEXT(card, 4, "setdelip");
480 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
482 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
485 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
486 if (addr->proto == QETH_PROT_IPV6) {
487 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
488 sizeof(struct in6_addr));
489 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
490 memcpy(cmd->data.setdelip6.mask, netmask,
491 sizeof(struct in6_addr));
492 cmd->data.setdelip6.flags = flags;
494 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
495 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
496 cmd->data.setdelip4.flags = flags;
499 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
504 static int qeth_l3_send_setrouting(struct qeth_card *card,
505 enum qeth_routing_types type, enum qeth_prot_versions prot)
508 struct qeth_ipa_cmd *cmd;
509 struct qeth_cmd_buffer *iob;
511 QETH_CARD_TEXT(card, 4, "setroutg");
512 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
515 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
516 cmd->data.setrtg.type = (type);
517 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
522 static int qeth_l3_correct_routing_type(struct qeth_card *card,
523 enum qeth_routing_types *type, enum qeth_prot_versions prot)
525 if (card->info.type == QETH_CARD_TYPE_IQD) {
528 case PRIMARY_CONNECTOR:
529 case SECONDARY_CONNECTOR:
530 case MULTICAST_ROUTER:
539 case SECONDARY_ROUTER:
541 case MULTICAST_ROUTER:
542 if (qeth_is_ipafunc_supported(card, prot,
554 int qeth_l3_setrouting_v4(struct qeth_card *card)
558 QETH_CARD_TEXT(card, 3, "setrtg4");
560 rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
565 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
568 card->options.route4.type = NO_ROUTER;
569 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
570 " on %s. Type set to 'no router'.\n", rc,
571 QETH_CARD_IFNAME(card));
576 int qeth_l3_setrouting_v6(struct qeth_card *card)
580 QETH_CARD_TEXT(card, 3, "setrtg6");
581 #ifdef CONFIG_QETH_IPV6
583 if (!qeth_is_supported(card, IPA_IPV6))
585 rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
590 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
593 card->options.route6.type = NO_ROUTER;
594 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
595 " on %s. Type set to 'no router'.\n", rc,
596 QETH_CARD_IFNAME(card));
603 * IP address takeover related functions
605 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
607 struct qeth_ipato_entry *ipatoe, *tmp;
609 spin_lock_bh(&card->ip_lock);
611 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
612 list_del(&ipatoe->entry);
616 spin_unlock_bh(&card->ip_lock);
619 int qeth_l3_add_ipato_entry(struct qeth_card *card,
620 struct qeth_ipato_entry *new)
622 struct qeth_ipato_entry *ipatoe;
625 QETH_CARD_TEXT(card, 2, "addipato");
627 spin_lock_bh(&card->ip_lock);
629 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
630 if (ipatoe->proto != new->proto)
632 if (!memcmp(ipatoe->addr, new->addr,
633 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
634 (ipatoe->mask_bits == new->mask_bits)) {
641 list_add_tail(&new->entry, &card->ipato.entries);
643 spin_unlock_bh(&card->ip_lock);
648 void qeth_l3_del_ipato_entry(struct qeth_card *card,
649 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
651 struct qeth_ipato_entry *ipatoe, *tmp;
653 QETH_CARD_TEXT(card, 2, "delipato");
655 spin_lock_bh(&card->ip_lock);
657 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
658 if (ipatoe->proto != proto)
660 if (!memcmp(ipatoe->addr, addr,
661 (proto == QETH_PROT_IPV4)? 4:16) &&
662 (ipatoe->mask_bits == mask_bits)) {
663 list_del(&ipatoe->entry);
668 spin_unlock_bh(&card->ip_lock);
672 * VIPA related functions
674 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
677 struct qeth_ipaddr *ipaddr;
680 ipaddr = qeth_l3_get_addr_buffer(proto);
682 if (proto == QETH_PROT_IPV4) {
683 QETH_CARD_TEXT(card, 2, "addvipa4");
684 memcpy(&ipaddr->u.a4.addr, addr, 4);
685 ipaddr->u.a4.mask = 0;
686 } else if (proto == QETH_PROT_IPV6) {
687 QETH_CARD_TEXT(card, 2, "addvipa6");
688 memcpy(&ipaddr->u.a6.addr, addr, 16);
689 ipaddr->u.a6.pfxlen = 0;
691 ipaddr->type = QETH_IP_TYPE_VIPA;
692 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
693 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
697 spin_lock_bh(&card->ip_lock);
699 if (qeth_l3_ip_from_hash(card, ipaddr))
702 qeth_l3_add_ip(card, ipaddr);
704 spin_unlock_bh(&card->ip_lock);
711 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
714 struct qeth_ipaddr *ipaddr;
716 ipaddr = qeth_l3_get_addr_buffer(proto);
718 if (proto == QETH_PROT_IPV4) {
719 QETH_CARD_TEXT(card, 2, "delvipa4");
720 memcpy(&ipaddr->u.a4.addr, addr, 4);
721 ipaddr->u.a4.mask = 0;
722 } else if (proto == QETH_PROT_IPV6) {
723 QETH_CARD_TEXT(card, 2, "delvipa6");
724 memcpy(&ipaddr->u.a6.addr, addr, 16);
725 ipaddr->u.a6.pfxlen = 0;
727 ipaddr->type = QETH_IP_TYPE_VIPA;
731 spin_lock_bh(&card->ip_lock);
732 qeth_l3_delete_ip(card, ipaddr);
733 spin_unlock_bh(&card->ip_lock);
739 * proxy ARP related functions
741 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
744 struct qeth_ipaddr *ipaddr;
747 ipaddr = qeth_l3_get_addr_buffer(proto);
749 if (proto == QETH_PROT_IPV4) {
750 QETH_CARD_TEXT(card, 2, "addrxip4");
751 memcpy(&ipaddr->u.a4.addr, addr, 4);
752 ipaddr->u.a4.mask = 0;
753 } else if (proto == QETH_PROT_IPV6) {
754 QETH_CARD_TEXT(card, 2, "addrxip6");
755 memcpy(&ipaddr->u.a6.addr, addr, 16);
756 ipaddr->u.a6.pfxlen = 0;
759 ipaddr->type = QETH_IP_TYPE_RXIP;
760 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
761 ipaddr->del_flags = 0;
765 spin_lock_bh(&card->ip_lock);
767 if (qeth_l3_ip_from_hash(card, ipaddr))
770 qeth_l3_add_ip(card, ipaddr);
772 spin_unlock_bh(&card->ip_lock);
779 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
782 struct qeth_ipaddr *ipaddr;
784 ipaddr = qeth_l3_get_addr_buffer(proto);
786 if (proto == QETH_PROT_IPV4) {
787 QETH_CARD_TEXT(card, 2, "addrxip4");
788 memcpy(&ipaddr->u.a4.addr, addr, 4);
789 ipaddr->u.a4.mask = 0;
790 } else if (proto == QETH_PROT_IPV6) {
791 QETH_CARD_TEXT(card, 2, "addrxip6");
792 memcpy(&ipaddr->u.a6.addr, addr, 16);
793 ipaddr->u.a6.pfxlen = 0;
795 ipaddr->type = QETH_IP_TYPE_RXIP;
799 spin_lock_bh(&card->ip_lock);
800 qeth_l3_delete_ip(card, ipaddr);
801 spin_unlock_bh(&card->ip_lock);
806 static int qeth_l3_register_addr_entry(struct qeth_card *card,
807 struct qeth_ipaddr *addr)
814 if (addr->proto == QETH_PROT_IPV4) {
815 QETH_CARD_TEXT(card, 2, "setaddr4");
816 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
817 } else if (addr->proto == QETH_PROT_IPV6) {
818 QETH_CARD_TEXT(card, 2, "setaddr6");
819 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
820 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
822 QETH_CARD_TEXT(card, 2, "setaddr?");
823 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
826 if (addr->is_multicast)
827 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
829 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
832 QETH_CARD_TEXT(card, 2, "failed");
833 } while ((--cnt > 0) && rc);
835 QETH_CARD_TEXT(card, 2, "FAILED");
836 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
837 dev_warn(&card->gdev->dev,
838 "Registering IP address %s failed\n", buf);
843 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
844 struct qeth_ipaddr *addr)
848 if (addr->proto == QETH_PROT_IPV4) {
849 QETH_CARD_TEXT(card, 2, "deladdr4");
850 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
851 } else if (addr->proto == QETH_PROT_IPV6) {
852 QETH_CARD_TEXT(card, 2, "deladdr6");
853 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
854 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
856 QETH_CARD_TEXT(card, 2, "deladdr?");
857 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
859 if (addr->is_multicast)
860 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
862 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
865 QETH_CARD_TEXT(card, 2, "failed");
870 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
872 if (cast_type == RTN_MULTICAST)
873 return QETH_CAST_MULTICAST;
874 if (cast_type == RTN_BROADCAST)
875 return QETH_CAST_BROADCAST;
876 return QETH_CAST_UNICAST;
879 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
881 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
882 if (cast_type == RTN_MULTICAST)
883 return ct | QETH_CAST_MULTICAST;
884 if (cast_type == RTN_ANYCAST)
885 return ct | QETH_CAST_ANYCAST;
886 if (cast_type == RTN_BROADCAST)
887 return ct | QETH_CAST_BROADCAST;
888 return ct | QETH_CAST_UNICAST;
891 static int qeth_l3_setadapter_parms(struct qeth_card *card)
895 QETH_DBF_TEXT(SETUP, 2, "setadprm");
897 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
898 dev_info(&card->gdev->dev,
899 "set adapter parameters not supported.\n");
900 QETH_DBF_TEXT(SETUP, 2, " notsupp");
903 rc = qeth_query_setadapterparms(card);
905 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
906 "0x%x\n", dev_name(&card->gdev->dev), rc);
909 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
910 rc = qeth_setadpparms_change_macaddr(card);
912 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
913 " address failed\n");
919 #ifdef CONFIG_QETH_IPV6
920 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
921 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
924 struct qeth_cmd_buffer *iob;
926 QETH_CARD_TEXT(card, 4, "simassp6");
927 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
931 rc = qeth_send_setassparms(card, iob, 0, 0,
932 qeth_setassparms_cb, NULL);
937 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
941 QETH_CARD_TEXT(card, 3, "ipaarp");
943 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
944 dev_info(&card->gdev->dev,
945 "ARP processing not supported on %s!\n",
946 QETH_CARD_IFNAME(card));
949 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
950 IPA_CMD_ASS_START, 0);
952 dev_warn(&card->gdev->dev,
953 "Starting ARP processing support for %s failed\n",
954 QETH_CARD_IFNAME(card));
959 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
963 QETH_CARD_TEXT(card, 3, "stsrcmac");
965 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
966 dev_info(&card->gdev->dev,
967 "Inbound source MAC-address not supported on %s\n",
968 QETH_CARD_IFNAME(card));
972 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
973 IPA_CMD_ASS_START, 0);
975 dev_warn(&card->gdev->dev,
976 "Starting source MAC-address support for %s failed\n",
977 QETH_CARD_IFNAME(card));
981 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
985 QETH_CARD_TEXT(card, 3, "strtvlan");
987 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
988 dev_info(&card->gdev->dev,
989 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
993 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
994 IPA_CMD_ASS_START, 0);
996 dev_warn(&card->gdev->dev,
997 "Starting VLAN support for %s failed\n",
998 QETH_CARD_IFNAME(card));
1000 dev_info(&card->gdev->dev, "VLAN enabled\n");
1005 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1009 QETH_CARD_TEXT(card, 3, "stmcast");
1011 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1012 dev_info(&card->gdev->dev,
1013 "Multicast not supported on %s\n",
1014 QETH_CARD_IFNAME(card));
1018 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
1019 IPA_CMD_ASS_START, 0);
1021 dev_warn(&card->gdev->dev,
1022 "Starting multicast support for %s failed\n",
1023 QETH_CARD_IFNAME(card));
1025 dev_info(&card->gdev->dev, "Multicast enabled\n");
1026 card->dev->flags |= IFF_MULTICAST;
1031 #ifdef CONFIG_QETH_IPV6
1032 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1036 QETH_CARD_TEXT(card, 3, "softipv6");
1038 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1040 dev_err(&card->gdev->dev,
1041 "Activating IPv6 support for %s failed\n",
1042 QETH_CARD_IFNAME(card));
1046 if (card->info.type == QETH_CARD_TYPE_IQD)
1049 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
1050 IPA_CMD_ASS_START, 3);
1052 dev_err(&card->gdev->dev,
1053 "Activating IPv6 support for %s failed\n",
1054 QETH_CARD_IFNAME(card));
1057 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1060 dev_err(&card->gdev->dev,
1061 "Activating IPv6 support for %s failed\n",
1062 QETH_CARD_IFNAME(card));
1065 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1068 dev_warn(&card->gdev->dev,
1069 "Enabling the passthrough mode for %s failed\n",
1070 QETH_CARD_IFNAME(card));
1074 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1079 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1083 QETH_CARD_TEXT(card, 3, "strtipv6");
1085 if (!qeth_is_supported(card, IPA_IPV6)) {
1086 dev_info(&card->gdev->dev,
1087 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1090 #ifdef CONFIG_QETH_IPV6
1091 rc = qeth_l3_softsetup_ipv6(card);
1096 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1100 QETH_CARD_TEXT(card, 3, "stbrdcst");
1101 card->info.broadcast_capable = 0;
1102 if (!qeth_is_supported(card, IPA_FILTERING)) {
1103 dev_info(&card->gdev->dev,
1104 "Broadcast not supported on %s\n",
1105 QETH_CARD_IFNAME(card));
1109 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1110 IPA_CMD_ASS_START, 0);
1112 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1113 "%s failed\n", QETH_CARD_IFNAME(card));
1117 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1118 IPA_CMD_ASS_CONFIGURE, 1);
1120 dev_warn(&card->gdev->dev,
1121 "Setting up broadcast filtering for %s failed\n",
1122 QETH_CARD_IFNAME(card));
1125 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1126 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1127 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1128 IPA_CMD_ASS_ENABLE, 1);
1130 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1131 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1134 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1136 if (card->info.broadcast_capable)
1137 card->dev->flags |= IFF_BROADCAST;
1139 card->dev->flags &= ~IFF_BROADCAST;
1143 static int qeth_l3_start_ipassists(struct qeth_card *card)
1145 QETH_CARD_TEXT(card, 3, "strtipas");
1147 if (qeth_set_access_ctrl_online(card, 0))
1149 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1150 qeth_l3_start_ipa_source_mac(card); /* go on*/
1151 qeth_l3_start_ipa_vlan(card); /* go on*/
1152 qeth_l3_start_ipa_multicast(card); /* go on*/
1153 qeth_l3_start_ipa_ipv6(card); /* go on*/
1154 qeth_l3_start_ipa_broadcast(card); /* go on*/
1158 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1159 struct qeth_reply *reply, unsigned long data)
1161 struct qeth_ipa_cmd *cmd;
1163 cmd = (struct qeth_ipa_cmd *) data;
1164 if (cmd->hdr.return_code == 0)
1165 memcpy(card->dev->dev_addr,
1166 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1168 eth_random_addr(card->dev->dev_addr);
1173 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1176 struct qeth_cmd_buffer *iob;
1177 struct qeth_ipa_cmd *cmd;
1179 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1181 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1185 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1186 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1187 card->info.unique_id;
1189 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1194 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1195 struct qeth_reply *reply, unsigned long data)
1197 struct qeth_ipa_cmd *cmd;
1199 cmd = (struct qeth_ipa_cmd *) data;
1200 if (cmd->hdr.return_code == 0)
1201 card->info.unique_id = *((__u16 *)
1202 &cmd->data.create_destroy_addr.unique_id[6]);
1204 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1205 UNIQUE_ID_NOT_BY_CARD;
1206 dev_warn(&card->gdev->dev, "The network adapter failed to "
1207 "generate a unique ID\n");
1212 static int qeth_l3_get_unique_id(struct qeth_card *card)
1215 struct qeth_cmd_buffer *iob;
1216 struct qeth_ipa_cmd *cmd;
1218 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1220 if (!qeth_is_supported(card, IPA_IPV6)) {
1221 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1222 UNIQUE_ID_NOT_BY_CARD;
1226 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1230 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1231 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1232 card->info.unique_id;
1234 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1239 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1242 struct qeth_ipa_cmd *cmd;
1245 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1247 cmd = (struct qeth_ipa_cmd *)data;
1248 rc = cmd->hdr.return_code;
1250 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1251 switch (cmd->data.diagass.action) {
1252 case QETH_DIAGS_CMD_TRACE_QUERY:
1254 case QETH_DIAGS_CMD_TRACE_DISABLE:
1257 case IPA_RC_INVALID_SUBCMD:
1258 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1259 dev_info(&card->gdev->dev, "The HiperSockets network "
1260 "traffic analyzer is deactivated\n");
1266 case QETH_DIAGS_CMD_TRACE_ENABLE:
1269 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1270 dev_info(&card->gdev->dev, "The HiperSockets network "
1271 "traffic analyzer is activated\n");
1273 case IPA_RC_HARDWARE_AUTH_ERROR:
1274 dev_warn(&card->gdev->dev, "The device is not "
1275 "authorized to run as a HiperSockets network "
1276 "traffic analyzer\n");
1278 case IPA_RC_TRACE_ALREADY_ACTIVE:
1279 dev_warn(&card->gdev->dev, "A HiperSockets "
1280 "network traffic analyzer is already "
1281 "active in the HiperSockets LAN\n");
1288 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1289 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1296 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1298 struct qeth_cmd_buffer *iob;
1299 struct qeth_ipa_cmd *cmd;
1301 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1303 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1306 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1307 cmd->data.diagass.subcmd_len = 16;
1308 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1309 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1310 cmd->data.diagass.action = diags_cmd;
1311 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1314 static void qeth_l3_get_mac_for_ipm(__be32 ipm, char *mac)
1316 ip_eth_mc_map(ipm, mac);
1319 static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card *card)
1321 struct qeth_ipaddr *addr;
1324 hash_for_each(card->ip_mc_htable, i, addr, hnode)
1325 addr->disp_flag = QETH_DISP_ADDR_DELETE;
1329 static void qeth_l3_add_all_new_mc(struct qeth_card *card)
1331 struct qeth_ipaddr *addr;
1332 struct hlist_node *tmp;
1336 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1337 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
1338 rc = qeth_l3_register_addr_entry(card, addr);
1339 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
1340 addr->ref_counter = 1;
1342 hash_del(&addr->hnode);
1350 static void qeth_l3_delete_nonused_mc(struct qeth_card *card)
1352 struct qeth_ipaddr *addr;
1353 struct hlist_node *tmp;
1357 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1358 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
1359 rc = qeth_l3_deregister_addr_entry(card, addr);
1360 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) {
1361 hash_del(&addr->hnode);
1371 qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
1373 struct ip_mc_list *im4;
1374 struct qeth_ipaddr *tmp, *ipm;
1375 char buf[MAX_ADDR_LEN];
1377 QETH_CARD_TEXT(card, 4, "addmc");
1379 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1383 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1384 im4 = rcu_dereference(im4->next_rcu)) {
1385 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf);
1387 tmp->u.a4.addr = be32_to_cpu(im4->multiaddr);
1388 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1390 ipm = qeth_l3_ip_from_hash(card, tmp);
1392 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1394 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1397 memcpy(ipm->mac, buf, sizeof(tmp->mac));
1398 ipm->u.a4.addr = be32_to_cpu(im4->multiaddr);
1399 ipm->is_multicast = 1;
1400 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1401 hash_add(card->ip_mc_htable,
1402 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1409 /* called with rcu_read_lock */
1410 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1412 struct in_device *in_dev;
1415 QETH_CARD_TEXT(card, 4, "addmcvl");
1417 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1420 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1421 struct net_device *netdev;
1423 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1425 if (netdev == NULL ||
1426 !(netdev->flags & IFF_UP))
1428 in_dev = __in_dev_get_rcu(netdev);
1431 qeth_l3_add_mc_to_hash(card, in_dev);
1435 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1437 struct in_device *in4_dev;
1439 QETH_CARD_TEXT(card, 4, "chkmcv4");
1442 in4_dev = __in_dev_get_rcu(card->dev);
1443 if (in4_dev == NULL)
1445 qeth_l3_add_mc_to_hash(card, in4_dev);
1446 qeth_l3_add_vlan_mc(card);
1451 #ifdef CONFIG_QETH_IPV6
1453 qeth_l3_add_mc6_to_hash(struct qeth_card *card, struct inet6_dev *in6_dev)
1455 struct qeth_ipaddr *ipm;
1456 struct ifmcaddr6 *im6;
1457 struct qeth_ipaddr *tmp;
1458 char buf[MAX_ADDR_LEN];
1460 QETH_CARD_TEXT(card, 4, "addmc6");
1462 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1466 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1467 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1469 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1470 memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
1471 sizeof(struct in6_addr));
1472 tmp->is_multicast = 1;
1474 ipm = qeth_l3_ip_from_hash(card, tmp);
1476 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1480 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1484 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1485 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1486 sizeof(struct in6_addr));
1487 ipm->is_multicast = 1;
1488 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1489 hash_add(card->ip_mc_htable,
1490 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1496 /* called with rcu_read_lock */
1497 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1499 struct inet6_dev *in_dev;
1502 QETH_CARD_TEXT(card, 4, "admc6vl");
1504 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1507 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1508 struct net_device *netdev;
1510 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1512 if (netdev == NULL ||
1513 !(netdev->flags & IFF_UP))
1515 in_dev = in6_dev_get(netdev);
1518 read_lock_bh(&in_dev->lock);
1519 qeth_l3_add_mc6_to_hash(card, in_dev);
1520 read_unlock_bh(&in_dev->lock);
1521 in6_dev_put(in_dev);
1525 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1527 struct inet6_dev *in6_dev;
1529 QETH_CARD_TEXT(card, 4, "chkmcv6");
1531 if (!qeth_is_supported(card, IPA_IPV6))
1533 in6_dev = in6_dev_get(card->dev);
1538 read_lock_bh(&in6_dev->lock);
1539 qeth_l3_add_mc6_to_hash(card, in6_dev);
1540 qeth_l3_add_vlan_mc6(card);
1541 read_unlock_bh(&in6_dev->lock);
1543 in6_dev_put(in6_dev);
1545 #endif /* CONFIG_QETH_IPV6 */
1547 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1550 struct in_device *in_dev;
1551 struct in_ifaddr *ifa;
1552 struct qeth_ipaddr *addr;
1553 struct net_device *netdev;
1555 QETH_CARD_TEXT(card, 4, "frvaddr4");
1557 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1560 in_dev = in_dev_get(netdev);
1564 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1568 spin_lock_bh(&card->ip_lock);
1570 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1571 addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
1572 addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
1573 addr->type = QETH_IP_TYPE_NORMAL;
1574 qeth_l3_delete_ip(card, addr);
1577 spin_unlock_bh(&card->ip_lock);
1583 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1586 #ifdef CONFIG_QETH_IPV6
1587 struct inet6_dev *in6_dev;
1588 struct inet6_ifaddr *ifa;
1589 struct qeth_ipaddr *addr;
1590 struct net_device *netdev;
1592 QETH_CARD_TEXT(card, 4, "frvaddr6");
1594 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1598 in6_dev = in6_dev_get(netdev);
1602 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1606 spin_lock_bh(&card->ip_lock);
1608 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1609 memcpy(&addr->u.a6.addr, &ifa->addr,
1610 sizeof(struct in6_addr));
1611 addr->u.a6.pfxlen = ifa->prefix_len;
1612 addr->type = QETH_IP_TYPE_NORMAL;
1613 qeth_l3_delete_ip(card, addr);
1616 spin_unlock_bh(&card->ip_lock);
1619 in6_dev_put(in6_dev);
1620 #endif /* CONFIG_QETH_IPV6 */
1623 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1627 qeth_l3_free_vlan_addresses4(card, vid);
1628 qeth_l3_free_vlan_addresses6(card, vid);
1632 static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1633 __be16 proto, u16 vid)
1635 struct qeth_card *card = dev->ml_priv;
1637 set_bit(vid, card->active_vlans);
1641 static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1642 __be16 proto, u16 vid)
1644 struct qeth_card *card = dev->ml_priv;
1646 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1648 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1649 QETH_CARD_TEXT(card, 3, "kidREC");
1652 /* unregister IP addresses of vlan device */
1653 qeth_l3_free_vlan_addresses(card, vid);
1654 clear_bit(vid, card->active_vlans);
1655 qeth_l3_set_multicast_list(card->dev);
1659 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1660 struct sk_buff *skb, struct qeth_hdr *hdr,
1661 unsigned short *vlan_id)
1664 struct iphdr *ip_hdr;
1665 unsigned char tg_addr[MAX_ADDR_LEN];
1668 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1669 prot = (hdr->hdr.l3.flags & QETH_HDR_IPV6) ? ETH_P_IPV6 :
1671 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1672 case QETH_CAST_MULTICAST:
1674 #ifdef CONFIG_QETH_IPV6
1676 ndisc_mc_map((struct in6_addr *)
1678 tg_addr, card->dev, 0);
1682 ip_hdr = (struct iphdr *)skb->data;
1683 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1686 memcpy(tg_addr, card->dev->broadcast,
1687 card->dev->addr_len);
1689 card->stats.multicast++;
1690 skb->pkt_type = PACKET_MULTICAST;
1692 case QETH_CAST_BROADCAST:
1693 memcpy(tg_addr, card->dev->broadcast,
1694 card->dev->addr_len);
1695 card->stats.multicast++;
1696 skb->pkt_type = PACKET_BROADCAST;
1698 case QETH_CAST_UNICAST:
1699 case QETH_CAST_ANYCAST:
1700 case QETH_CAST_NOCAST:
1702 if (card->options.sniffer)
1703 skb->pkt_type = PACKET_OTHERHOST;
1705 skb->pkt_type = PACKET_HOST;
1706 memcpy(tg_addr, card->dev->dev_addr,
1707 card->dev->addr_len);
1709 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1710 card->dev->header_ops->create(skb, card->dev, prot,
1711 tg_addr, &hdr->hdr.l3.dest_addr[2],
1712 card->dev->addr_len);
1714 card->dev->header_ops->create(skb, card->dev, prot,
1715 tg_addr, "FAKELL", card->dev->addr_len);
1718 skb->protocol = eth_type_trans(skb, card->dev);
1720 if (hdr->hdr.l3.ext_flags &
1721 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1722 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
1723 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1727 if (card->dev->features & NETIF_F_RXCSUM) {
1728 if ((hdr->hdr.l3.ext_flags &
1729 (QETH_HDR_EXT_CSUM_HDR_REQ |
1730 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1731 (QETH_HDR_EXT_CSUM_HDR_REQ |
1732 QETH_HDR_EXT_CSUM_TRANSP_REQ))
1733 skb->ip_summed = CHECKSUM_UNNECESSARY;
1735 skb->ip_summed = CHECKSUM_NONE;
1737 skb->ip_summed = CHECKSUM_NONE;
1741 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1742 int budget, int *done)
1745 struct sk_buff *skb;
1746 struct qeth_hdr *hdr;
1753 WARN_ON_ONCE(!budget);
1755 skb = qeth_core_get_next_skb(card,
1756 &card->qdio.in_q->bufs[card->rx.b_index],
1757 &card->rx.b_element, &card->rx.e_offset, &hdr);
1762 skb->dev = card->dev;
1763 switch (hdr->hdr.l3.id) {
1764 case QETH_HEADER_TYPE_LAYER3:
1765 magic = *(__u16 *)skb->data;
1766 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1767 (magic == ETH_P_AF_IUCV)) {
1768 skb->protocol = cpu_to_be16(ETH_P_AF_IUCV);
1769 skb->pkt_type = PACKET_HOST;
1770 skb->mac_header = NET_SKB_PAD;
1771 skb->dev = card->dev;
1773 card->dev->header_ops->create(skb, card->dev, 0,
1774 card->dev->dev_addr, "FAKELL",
1775 card->dev->addr_len);
1776 netif_receive_skb(skb);
1778 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
1781 if (is_vlan && !card->options.sniffer)
1782 __vlan_hwaccel_put_tag(skb,
1783 htons(ETH_P_8021Q), vlan_tag);
1784 napi_gro_receive(&card->napi, skb);
1787 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1788 skb->pkt_type = PACKET_HOST;
1789 skb->protocol = eth_type_trans(skb, skb->dev);
1791 netif_receive_skb(skb);
1794 dev_kfree_skb_any(skb);
1795 QETH_CARD_TEXT(card, 3, "inbunkno");
1796 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
1801 card->stats.rx_packets++;
1802 card->stats.rx_bytes += len;
1807 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1808 struct qeth_card *card)
1813 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1814 struct net_device *netdev;
1817 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1820 if (netdev == dev) {
1821 rc = QETH_VLAN_CARD;
1826 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
1832 static int qeth_l3_verify_dev(struct net_device *dev)
1834 struct qeth_card *card;
1836 unsigned long flags;
1838 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
1839 list_for_each_entry(card, &qeth_core_card_list.list, list) {
1840 if (card->dev == dev) {
1841 rc = QETH_REAL_CARD;
1844 rc = qeth_l3_verify_vlan_dev(dev, card);
1848 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
1853 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
1855 struct qeth_card *card = NULL;
1858 rc = qeth_l3_verify_dev(dev);
1859 if (rc == QETH_REAL_CARD)
1860 card = dev->ml_priv;
1861 else if (rc == QETH_VLAN_CARD)
1862 card = vlan_dev_real_dev(dev)->ml_priv;
1863 if (card && card->options.layer2)
1866 QETH_CARD_TEXT_(card, 4, "%d", rc);
1870 static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
1872 QETH_DBF_TEXT(SETUP, 2, "stopcard");
1873 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1875 qeth_set_allowed_threads(card, 0, 1);
1876 if (card->options.sniffer &&
1877 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
1878 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
1879 if (card->read.state == CH_STATE_UP &&
1880 card->write.state == CH_STATE_UP &&
1881 (card->state == CARD_STATE_UP)) {
1883 qeth_l3_stop(card->dev);
1886 dev_close(card->dev);
1889 card->state = CARD_STATE_SOFTSETUP;
1891 if (card->state == CARD_STATE_SOFTSETUP) {
1892 qeth_l3_clear_ip_htable(card, 1);
1893 qeth_clear_ipacmd_list(card);
1894 card->state = CARD_STATE_HARDSETUP;
1896 if (card->state == CARD_STATE_HARDSETUP) {
1897 qeth_qdio_clear_card(card, 0);
1898 qeth_clear_qdio_buffers(card);
1899 qeth_clear_working_pool_list(card);
1900 card->state = CARD_STATE_DOWN;
1902 if (card->state == CARD_STATE_DOWN) {
1903 qeth_clear_cmd_buffers(&card->read);
1904 qeth_clear_cmd_buffers(&card->write);
1909 * test for and Switch promiscuous mode (on or off)
1910 * either for guestlan or HiperSocket Sniffer
1913 qeth_l3_handle_promisc_mode(struct qeth_card *card)
1915 struct net_device *dev = card->dev;
1917 if (((dev->flags & IFF_PROMISC) &&
1918 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
1919 (!(dev->flags & IFF_PROMISC) &&
1920 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
1923 if (card->info.guestlan) { /* Guestlan trace */
1924 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
1925 qeth_setadp_promisc_mode(card);
1926 } else if (card->options.sniffer && /* HiperSockets trace */
1927 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
1928 if (dev->flags & IFF_PROMISC) {
1929 QETH_CARD_TEXT(card, 3, "+promisc");
1930 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
1932 QETH_CARD_TEXT(card, 3, "-promisc");
1933 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
1938 static void qeth_l3_set_multicast_list(struct net_device *dev)
1940 struct qeth_card *card = dev->ml_priv;
1942 QETH_CARD_TEXT(card, 3, "setmulti");
1943 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
1944 (card->state != CARD_STATE_UP))
1946 if (!card->options.sniffer) {
1948 spin_lock_bh(&card->mclock);
1950 qeth_l3_mark_all_mc_to_be_deleted(card);
1952 qeth_l3_add_multicast_ipv4(card);
1953 #ifdef CONFIG_QETH_IPV6
1954 qeth_l3_add_multicast_ipv6(card);
1956 qeth_l3_delete_nonused_mc(card);
1957 qeth_l3_add_all_new_mc(card);
1959 spin_unlock_bh(&card->mclock);
1961 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
1964 qeth_l3_handle_promisc_mode(card);
1967 static const char *qeth_l3_arp_get_error_cause(int *rc)
1970 case QETH_IPA_ARP_RC_FAILED:
1972 return "operation failed";
1973 case QETH_IPA_ARP_RC_NOTSUPP:
1975 return "operation not supported";
1976 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
1978 return "argument out of range";
1979 case QETH_IPA_ARP_RC_Q_NOTSUPP:
1981 return "query operation not supported";
1982 case QETH_IPA_ARP_RC_Q_NO_DATA:
1984 return "no query data available";
1986 return "unknown error";
1990 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
1995 QETH_CARD_TEXT(card, 3, "arpstnoe");
1998 * currently GuestLAN only supports the ARP assist function
1999 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2000 * thus we say EOPNOTSUPP for this ARP function
2002 if (card->info.guestlan)
2004 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2007 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2008 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2012 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2013 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2014 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2019 static __u32 get_arp_entry_size(struct qeth_card *card,
2020 struct qeth_arp_query_data *qdata,
2021 struct qeth_arp_entrytype *type, __u8 strip_entries)
2026 is_hsi = qdata->reply_bits == 5;
2027 if (type->ip == QETHARP_IP_ADDR_V4) {
2028 QETH_CARD_TEXT(card, 4, "arpev4");
2029 if (strip_entries) {
2030 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2031 sizeof(struct qeth_arp_qi_entry7_short);
2033 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2034 sizeof(struct qeth_arp_qi_entry7);
2036 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2037 QETH_CARD_TEXT(card, 4, "arpev6");
2038 if (strip_entries) {
2040 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2041 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2044 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2045 sizeof(struct qeth_arp_qi_entry7_ipv6);
2048 QETH_CARD_TEXT(card, 4, "arpinv");
2055 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2057 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2058 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2061 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2062 struct qeth_reply *reply, unsigned long data)
2064 struct qeth_ipa_cmd *cmd;
2065 struct qeth_arp_query_data *qdata;
2066 struct qeth_arp_query_info *qinfo;
2069 int entrybytes_done;
2071 __u8 do_strip_entries;
2073 QETH_CARD_TEXT(card, 3, "arpquecb");
2075 qinfo = (struct qeth_arp_query_info *) reply->param;
2076 cmd = (struct qeth_ipa_cmd *) data;
2077 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2078 if (cmd->hdr.return_code) {
2079 QETH_CARD_TEXT(card, 4, "arpcberr");
2080 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2083 if (cmd->data.setassparms.hdr.return_code) {
2084 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2085 QETH_CARD_TEXT(card, 4, "setaperr");
2086 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2089 qdata = &cmd->data.setassparms.data.query_arp;
2090 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2092 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2093 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2094 entrybytes_done = 0;
2095 for (e = 0; e < qdata->no_entries; ++e) {
2098 struct qeth_arp_entrytype *etype;
2100 cur_entry = &qdata->data + entrybytes_done;
2101 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2102 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2103 QETH_CARD_TEXT(card, 4, "pmis");
2104 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2107 esize = get_arp_entry_size(card, qdata, etype,
2109 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2113 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2114 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2115 cmd->hdr.return_code = IPA_RC_ENOMEM;
2119 memcpy(qinfo->udata + qinfo->udata_offset,
2120 &qdata->data + entrybytes_done + stripped_bytes,
2122 entrybytes_done += esize + stripped_bytes;
2123 qinfo->udata_offset += esize;
2124 ++qinfo->no_entries;
2126 /* check if all replies received ... */
2127 if (cmd->data.setassparms.hdr.seq_no <
2128 cmd->data.setassparms.hdr.number_of_replies)
2130 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2131 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2132 /* keep STRIP_ENTRIES flag so the user program can distinguish
2133 * stripped entries from normal ones */
2134 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2135 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2136 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2137 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2141 memcpy(qinfo->udata, &i, 4);
2145 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2146 struct qeth_cmd_buffer *iob, int len,
2147 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2151 QETH_CARD_TEXT(card, 4, "sendarp");
2153 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2154 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2155 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2156 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2157 reply_cb, reply_param);
2160 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2161 enum qeth_prot_versions prot,
2162 struct qeth_arp_query_info *qinfo)
2164 struct qeth_cmd_buffer *iob;
2165 struct qeth_ipa_cmd *cmd;
2169 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2171 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2172 IPA_CMD_ASS_ARP_QUERY_INFO,
2173 sizeof(struct qeth_arp_query_data)
2178 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2179 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2180 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2181 cmd->data.setassparms.data.query_arp.no_entries = 0;
2182 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2183 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2184 qeth_l3_arp_query_cb, (void *)qinfo);
2188 "Error while querying ARP cache on %s: %s "
2189 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2190 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2196 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2198 struct qeth_arp_query_info qinfo = {0, };
2201 QETH_CARD_TEXT(card, 3, "arpquery");
2203 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2204 IPA_ARP_PROCESSING)) {
2205 QETH_CARD_TEXT(card, 3, "arpqnsup");
2209 /* get size of userspace buffer and mask_bits -> 6 bytes */
2210 if (copy_from_user(&qinfo, udata, 6)) {
2214 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2219 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2220 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2222 if (copy_to_user(udata, qinfo.udata, 4))
2226 #ifdef CONFIG_QETH_IPV6
2227 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2228 /* fails in case of GuestLAN QDIO mode */
2229 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6, &qinfo);
2232 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2233 QETH_CARD_TEXT(card, 4, "qactf");
2237 QETH_CARD_TEXT(card, 4, "qacts");
2245 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2246 struct qeth_arp_cache_entry *entry)
2248 struct qeth_cmd_buffer *iob;
2253 QETH_CARD_TEXT(card, 3, "arpadent");
2256 * currently GuestLAN only supports the ARP assist function
2257 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2258 * thus we say EOPNOTSUPP for this ARP function
2260 if (card->info.guestlan)
2262 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2266 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2267 IPA_CMD_ASS_ARP_ADD_ENTRY,
2268 sizeof(struct qeth_arp_cache_entry),
2272 rc = qeth_send_setassparms(card, iob,
2273 sizeof(struct qeth_arp_cache_entry),
2274 (unsigned long) entry,
2275 qeth_setassparms_cb, NULL);
2278 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2279 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2280 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2281 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2286 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2287 struct qeth_arp_cache_entry *entry)
2289 struct qeth_cmd_buffer *iob;
2290 char buf[16] = {0, };
2294 QETH_CARD_TEXT(card, 3, "arprment");
2297 * currently GuestLAN only supports the ARP assist function
2298 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2299 * thus we say EOPNOTSUPP for this ARP function
2301 if (card->info.guestlan)
2303 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2306 memcpy(buf, entry, 12);
2307 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2308 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2313 rc = qeth_send_setassparms(card, iob,
2314 12, (unsigned long)buf,
2315 qeth_setassparms_cb, NULL);
2319 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2320 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2321 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2322 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2327 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2332 QETH_CARD_TEXT(card, 3, "arpflush");
2335 * currently GuestLAN only supports the ARP assist function
2336 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2337 * thus we say EOPNOTSUPP for this ARP function
2339 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2341 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2344 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2345 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2348 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2349 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2350 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2355 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2357 struct qeth_card *card = dev->ml_priv;
2358 struct qeth_arp_cache_entry arp_entry;
2362 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2363 if (!capable(CAP_NET_ADMIN)) {
2367 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2369 case SIOC_QETH_ARP_QUERY_INFO:
2370 if (!capable(CAP_NET_ADMIN)) {
2374 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2376 case SIOC_QETH_ARP_ADD_ENTRY:
2377 if (!capable(CAP_NET_ADMIN)) {
2381 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2382 sizeof(struct qeth_arp_cache_entry)))
2385 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2387 case SIOC_QETH_ARP_REMOVE_ENTRY:
2388 if (!capable(CAP_NET_ADMIN)) {
2392 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2393 sizeof(struct qeth_arp_cache_entry)))
2396 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2398 case SIOC_QETH_ARP_FLUSH_CACHE:
2399 if (!capable(CAP_NET_ADMIN)) {
2403 rc = qeth_l3_arp_flush_cache(card);
2411 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2413 int cast_type = RTN_UNSPEC;
2414 struct neighbour *n = NULL;
2415 struct dst_entry *dst;
2420 n = dst_neigh_lookup_skb(dst, skb);
2422 cast_type = n->type;
2425 if ((cast_type == RTN_BROADCAST) ||
2426 (cast_type == RTN_MULTICAST) ||
2427 (cast_type == RTN_ANYCAST))
2434 /* try something else */
2435 if (be16_to_cpu(skb->protocol) == ETH_P_IPV6)
2436 return (skb_network_header(skb)[24] == 0xff) ?
2438 else if (be16_to_cpu(skb->protocol) == ETH_P_IP)
2439 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2442 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2443 return RTN_BROADCAST;
2447 hdr_mac = *((u16 *)skb->data);
2449 switch (card->info.link_type) {
2450 case QETH_LINK_TYPE_HSTR:
2451 case QETH_LINK_TYPE_LANE_TR:
2452 if ((hdr_mac == QETH_TR_MAC_NC) ||
2453 (hdr_mac == QETH_TR_MAC_C))
2454 return RTN_MULTICAST;
2456 /* eth or so multicast? */
2458 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2459 (hdr_mac == QETH_ETH_MAC_V6))
2460 return RTN_MULTICAST;
2466 static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2467 struct qeth_hdr *hdr, struct sk_buff *skb)
2470 struct af_iucv_trans_hdr *iucv_hdr;
2472 memset(hdr, 0, sizeof(struct qeth_hdr));
2473 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2474 hdr->hdr.l3.ext_flags = 0;
2475 hdr->hdr.l3.length = skb->len - ETH_HLEN;
2476 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2478 iucv_hdr = (struct af_iucv_trans_hdr *) (skb->data + ETH_HLEN);
2479 memset(daddr, 0, sizeof(daddr));
2482 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2483 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2486 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2487 struct sk_buff *skb, int ipv, int cast_type)
2489 struct dst_entry *dst;
2491 memset(hdr, 0, sizeof(struct qeth_hdr));
2492 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2493 hdr->hdr.l3.ext_flags = 0;
2496 * before we're going to overwrite this location with next hop ip.
2497 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2499 if (skb_vlan_tag_present(skb)) {
2500 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2501 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2503 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2504 hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
2507 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2512 struct rtable *rt = (struct rtable *) dst;
2513 __be32 *pkey = &ip_hdr(skb)->daddr;
2516 pkey = &rt->rt_gateway;
2519 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2520 memset(hdr->hdr.l3.dest_addr, 0, 12);
2521 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
2522 } else if (ipv == 6) {
2523 struct rt6_info *rt = (struct rt6_info *) dst;
2524 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2526 if (!ipv6_addr_any(&rt->rt6i_gateway))
2527 pkey = &rt->rt6i_gateway;
2530 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2531 if (card->info.type == QETH_CARD_TYPE_IQD)
2532 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2533 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
2535 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2536 skb->dev->broadcast, 6)) {
2538 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2541 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2542 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2543 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2549 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2550 struct qeth_hdr *hdr, struct sk_buff *skb)
2552 struct iphdr *iph = ip_hdr(skb);
2554 /* tcph->check contains already the pseudo hdr checksum
2555 * so just set the header flags
2557 if (iph->protocol == IPPROTO_UDP)
2558 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2559 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2560 QETH_HDR_EXT_CSUM_HDR_REQ;
2562 if (card->options.performance_stats)
2563 card->perf_stats.tx_csum++;
2566 static void qeth_tso_fill_header(struct qeth_card *card,
2567 struct qeth_hdr *qhdr, struct sk_buff *skb)
2569 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2570 struct tcphdr *tcph = tcp_hdr(skb);
2571 struct iphdr *iph = ip_hdr(skb);
2572 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2574 /*fix header to TSO values ...*/
2575 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2576 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2577 /*set values which are fix for the first approach ...*/
2578 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2579 hdr->ext.imb_hdr_no = 1;
2580 hdr->ext.hdr_type = 1;
2581 hdr->ext.hdr_version = 1;
2582 hdr->ext.hdr_len = 28;
2583 /*insert non-fix values */
2584 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2585 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2586 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2587 sizeof(struct qeth_hdr_tso));
2589 if (be16_to_cpu(skb->protocol) == ETH_P_IPV6) {
2590 ip6h->payload_len = 0;
2591 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2594 /*OSA want us to set these values ...*/
2595 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2603 * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
2604 * @card: qeth card structure, to check max. elems.
2606 * @extra_elems: extra elems needed, to check against max.
2608 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
2609 * skb data, including linear part and fragments, but excluding TCP header.
2610 * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
2611 * Checks if the result plus extra_elems fits under the limit for the card.
2612 * Returns 0 if it does not.
2613 * Note: extra_elems is not included in the returned result.
2615 static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
2616 struct sk_buff *skb, int extra_elems)
2618 addr_t tcpdptr = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
2619 int elements = qeth_get_elements_for_range(
2621 (addr_t)skb->data + skb_headlen(skb)) +
2622 qeth_get_elements_for_frags(skb);
2624 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2626 "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
2627 elements + extra_elems, skb->len);
2633 static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb,
2634 struct net_device *dev)
2638 struct qeth_hdr *hdr = NULL;
2639 int hdr_elements = 0;
2641 struct qeth_card *card = dev->ml_priv;
2642 struct sk_buff *new_skb = NULL;
2643 int ipv = qeth_get_ip_version(skb);
2644 int cast_type = qeth_l3_get_cast_type(card, skb);
2645 struct qeth_qdio_out_q *queue =
2646 card->qdio.out_qs[card->qdio.do_prio_queueing
2647 || (cast_type && card->info.is_multicast_different) ?
2648 qeth_get_priority_queue(card, skb, ipv, cast_type) :
2649 card->qdio.default_out_queue];
2650 int tx_bytes = skb->len;
2652 int data_offset = -1;
2655 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2656 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2657 ((card->options.cq == QETH_CQ_ENABLED) &&
2658 (be16_to_cpu(skb->protocol) != ETH_P_AF_IUCV)))) ||
2659 card->options.sniffer)
2662 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2663 card->stats.tx_carrier_errors++;
2667 if ((cast_type == RTN_BROADCAST) &&
2668 (card->info.broadcast_capable == 0))
2671 if (card->options.performance_stats) {
2672 card->perf_stats.outbound_cnt++;
2673 card->perf_stats.outbound_start_time = qeth_get_micros();
2676 /* Ignore segment size from skb_is_gso(), 1 page is always used. */
2677 use_tso = skb_is_gso(skb) &&
2678 (qeth_get_ip_protocol(skb) == IPPROTO_TCP) && (ipv == 4);
2680 if (card->info.type == QETH_CARD_TYPE_IQD) {
2682 data_offset = ETH_HLEN;
2683 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2688 /* create a clone with writeable headroom */
2689 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2695 skb_pull(new_skb, ETH_HLEN);
2698 if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
2699 skb_push(new_skb, VLAN_HLEN);
2700 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2701 skb_copy_to_linear_data_offset(new_skb, 4,
2702 new_skb->data + 8, 4);
2703 skb_copy_to_linear_data_offset(new_skb, 8,
2704 new_skb->data + 12, 4);
2705 tag = (__be16 *)(new_skb->data + 12);
2706 *tag = cpu_to_be16(ETH_P_8021Q);
2707 *(tag + 1) = cpu_to_be16(skb_vlan_tag_get(new_skb));
2711 netif_stop_queue(dev);
2713 /* fix hardware limitation: as long as we do not have sbal
2714 * chaining we can not send long frag lists
2716 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
2717 ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) ||
2718 (!use_tso && !qeth_get_elements_no(card, new_skb, 0, 0)))) {
2719 int lin_rc = skb_linearize(new_skb);
2721 if (card->options.performance_stats) {
2723 card->perf_stats.tx_linfail++;
2725 card->perf_stats.tx_lin++;
2732 hdr = (struct qeth_hdr *)skb_push(new_skb,
2733 sizeof(struct qeth_hdr_tso));
2734 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2735 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2736 qeth_tso_fill_header(card, hdr, new_skb);
2739 if (data_offset < 0) {
2740 hdr = (struct qeth_hdr *)skb_push(new_skb,
2741 sizeof(struct qeth_hdr));
2742 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2745 if (be16_to_cpu(new_skb->protocol) == ETH_P_AF_IUCV)
2746 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
2748 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2750 hdr->hdr.l3.length = new_skb->len - data_offset;
2754 if (skb->ip_summed == CHECKSUM_PARTIAL)
2755 qeth_l3_hdr_csum(card, hdr, new_skb);
2758 elements = use_tso ?
2759 qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) :
2760 qeth_get_elements_no(card, new_skb, hdr_elements,
2761 (data_offset > 0) ? data_offset : 0);
2763 if (data_offset >= 0)
2764 kmem_cache_free(qeth_core_header_cache, hdr);
2767 elements += hdr_elements;
2769 if (card->info.type != QETH_CARD_TYPE_IQD) {
2772 len = ((unsigned long)tcp_hdr(new_skb) +
2773 tcp_hdrlen(new_skb)) -
2774 (unsigned long)new_skb->data;
2776 len = sizeof(struct qeth_hdr_layer3);
2778 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
2780 rc = qeth_do_send_packet(card, queue, new_skb, hdr, elements);
2782 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
2786 card->stats.tx_packets++;
2787 card->stats.tx_bytes += tx_bytes;
2789 dev_kfree_skb_any(skb);
2790 if (card->options.performance_stats) {
2791 nr_frags = skb_shinfo(new_skb)->nr_frags;
2793 card->perf_stats.large_send_bytes += tx_bytes;
2794 card->perf_stats.large_send_cnt++;
2797 card->perf_stats.sg_skbs_sent++;
2798 /* nr_frags + skb->data */
2799 card->perf_stats.sg_frags_sent += nr_frags + 1;
2804 if (data_offset >= 0)
2805 kmem_cache_free(qeth_core_header_cache, hdr);
2809 dev_kfree_skb_any(new_skb);
2810 return NETDEV_TX_BUSY;
2815 netif_wake_queue(dev);
2816 if (card->options.performance_stats)
2817 card->perf_stats.outbound_time += qeth_get_micros() -
2818 card->perf_stats.outbound_start_time;
2822 card->stats.tx_dropped++;
2823 card->stats.tx_errors++;
2824 if ((new_skb != skb) && new_skb)
2825 dev_kfree_skb_any(new_skb);
2826 dev_kfree_skb_any(skb);
2827 netif_wake_queue(dev);
2828 return NETDEV_TX_OK;
2831 static int __qeth_l3_open(struct net_device *dev)
2833 struct qeth_card *card = dev->ml_priv;
2836 QETH_CARD_TEXT(card, 4, "qethopen");
2837 if (card->state == CARD_STATE_UP)
2839 if (card->state != CARD_STATE_SOFTSETUP)
2841 card->data.state = CH_STATE_UP;
2842 card->state = CARD_STATE_UP;
2843 netif_start_queue(dev);
2845 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
2846 napi_enable(&card->napi);
2847 napi_schedule(&card->napi);
2853 static int qeth_l3_open(struct net_device *dev)
2855 struct qeth_card *card = dev->ml_priv;
2857 QETH_CARD_TEXT(card, 5, "qethope_");
2858 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2859 QETH_CARD_TEXT(card, 3, "openREC");
2860 return -ERESTARTSYS;
2862 return __qeth_l3_open(dev);
2865 static int qeth_l3_stop(struct net_device *dev)
2867 struct qeth_card *card = dev->ml_priv;
2869 QETH_CARD_TEXT(card, 4, "qethstop");
2870 netif_tx_disable(dev);
2871 if (card->state == CARD_STATE_UP) {
2872 card->state = CARD_STATE_SOFTSETUP;
2873 napi_disable(&card->napi);
2878 static const struct ethtool_ops qeth_l3_ethtool_ops = {
2879 .get_link = ethtool_op_get_link,
2880 .get_strings = qeth_core_get_strings,
2881 .get_ethtool_stats = qeth_core_get_ethtool_stats,
2882 .get_sset_count = qeth_core_get_sset_count,
2883 .get_drvinfo = qeth_core_get_drvinfo,
2884 .get_link_ksettings = qeth_core_ethtool_get_link_ksettings,
2888 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
2889 * NOARP on the netdevice is no option because it also turns off neighbor
2890 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
2891 * arp resolution but we want the hard header (packet socket will work
2894 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
2896 n->nud_state = NUD_NOARP;
2897 memcpy(n->ha, "FAKELL", 6);
2898 n->output = n->ops->connected_output;
2903 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
2905 if (np->tbl->family == AF_INET)
2906 np->neigh_setup = qeth_l3_neigh_setup_noarp;
2911 static const struct net_device_ops qeth_l3_netdev_ops = {
2912 .ndo_open = qeth_l3_open,
2913 .ndo_stop = qeth_l3_stop,
2914 .ndo_get_stats = qeth_get_stats,
2915 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2916 .ndo_validate_addr = eth_validate_addr,
2917 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
2918 .ndo_do_ioctl = qeth_do_ioctl,
2919 .ndo_change_mtu = qeth_change_mtu,
2920 .ndo_fix_features = qeth_fix_features,
2921 .ndo_set_features = qeth_set_features,
2922 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2923 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
2924 .ndo_tx_timeout = qeth_tx_timeout,
2927 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
2928 .ndo_open = qeth_l3_open,
2929 .ndo_stop = qeth_l3_stop,
2930 .ndo_get_stats = qeth_get_stats,
2931 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2932 .ndo_validate_addr = eth_validate_addr,
2933 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
2934 .ndo_do_ioctl = qeth_do_ioctl,
2935 .ndo_change_mtu = qeth_change_mtu,
2936 .ndo_fix_features = qeth_fix_features,
2937 .ndo_set_features = qeth_set_features,
2938 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2939 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
2940 .ndo_tx_timeout = qeth_tx_timeout,
2941 .ndo_neigh_setup = qeth_l3_neigh_setup,
2944 static int qeth_l3_setup_netdev(struct qeth_card *card)
2948 if (card->info.type == QETH_CARD_TYPE_OSD ||
2949 card->info.type == QETH_CARD_TYPE_OSX) {
2950 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
2951 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
2952 pr_info("qeth_l3: ignoring TR device\n");
2955 card->dev = alloc_etherdev(0);
2958 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
2960 /*IPv6 address autoconfiguration stuff*/
2961 qeth_l3_get_unique_id(card);
2962 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
2963 card->dev->dev_id = card->info.unique_id &
2965 if (!card->info.guestlan) {
2966 card->dev->hw_features = NETIF_F_SG |
2967 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
2969 card->dev->vlan_features = NETIF_F_SG |
2970 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
2974 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
2975 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
2979 card->dev->flags |= IFF_NOARP;
2980 card->dev->netdev_ops = &qeth_l3_netdev_ops;
2981 rc = qeth_l3_iqd_read_initial_mac(card);
2984 if (card->options.hsuid[0])
2985 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
2989 card->dev->ml_priv = card;
2990 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
2991 card->dev->mtu = card->info.initial_mtu;
2992 card->dev->min_mtu = 64;
2993 card->dev->max_mtu = ETH_MAX_MTU;
2994 card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
2995 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
2996 NETIF_F_HW_VLAN_CTAG_RX |
2997 NETIF_F_HW_VLAN_CTAG_FILTER;
2998 netif_keep_dst(card->dev);
2999 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
3002 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3003 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
3004 netif_carrier_off(card->dev);
3005 return register_netdev(card->dev);
3008 static const struct device_type qeth_l3_devtype = {
3009 .name = "qeth_layer3",
3010 .groups = qeth_l3_attr_groups,
3013 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3015 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3018 if (gdev->dev.type == &qeth_generic_devtype) {
3019 rc = qeth_l3_create_device_attributes(&gdev->dev);
3023 hash_init(card->ip_htable);
3024 hash_init(card->ip_mc_htable);
3025 card->options.layer2 = 0;
3026 card->info.hwtrap = 0;
3030 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3032 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3034 if (cgdev->dev.type == &qeth_generic_devtype)
3035 qeth_l3_remove_device_attributes(&cgdev->dev);
3037 qeth_set_allowed_threads(card, 0, 1);
3038 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3040 if (cgdev->state == CCWGROUP_ONLINE)
3041 qeth_l3_set_offline(cgdev);
3044 netif_napi_del(&card->napi);
3045 unregister_netdev(card->dev);
3049 qeth_l3_clear_ip_htable(card, 0);
3050 qeth_l3_clear_ipato_list(card);
3054 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3056 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3058 enum qeth_card_states recover_flag;
3060 mutex_lock(&card->discipline_mutex);
3061 mutex_lock(&card->conf_mutex);
3062 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3063 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3065 recover_flag = card->state;
3066 rc = qeth_core_hardsetup_card(card);
3068 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3073 if (!card->dev && qeth_l3_setup_netdev(card)) {
3078 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3079 if (card->info.hwtrap &&
3080 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3081 card->info.hwtrap = 0;
3083 card->info.hwtrap = 0;
3085 card->state = CARD_STATE_HARDSETUP;
3086 memset(&card->rx, 0, sizeof(struct qeth_rx));
3087 qeth_print_status_message(card);
3090 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3092 rc = qeth_l3_setadapter_parms(card);
3094 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3095 if (!card->options.sniffer) {
3096 rc = qeth_l3_start_ipassists(card);
3098 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3101 rc = qeth_l3_setrouting_v4(card);
3103 QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
3104 rc = qeth_l3_setrouting_v6(card);
3106 QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
3108 netif_tx_disable(card->dev);
3110 rc = qeth_init_qdio_queues(card);
3112 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3116 card->state = CARD_STATE_SOFTSETUP;
3118 qeth_set_allowed_threads(card, 0xffffffff, 0);
3119 qeth_l3_recover_ip(card);
3120 if (card->lan_online)
3121 netif_carrier_on(card->dev);
3123 netif_carrier_off(card->dev);
3124 if (recover_flag == CARD_STATE_RECOVER) {
3127 __qeth_l3_open(card->dev);
3129 dev_open(card->dev);
3130 qeth_l3_set_multicast_list(card->dev);
3131 qeth_recover_features(card->dev);
3134 qeth_trace_features(card);
3135 /* let user_space know that device is online */
3136 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3137 mutex_unlock(&card->conf_mutex);
3138 mutex_unlock(&card->discipline_mutex);
3141 qeth_l3_stop_card(card, 0);
3142 ccw_device_set_offline(CARD_DDEV(card));
3143 ccw_device_set_offline(CARD_WDEV(card));
3144 ccw_device_set_offline(CARD_RDEV(card));
3145 qdio_free(CARD_DDEV(card));
3146 if (recover_flag == CARD_STATE_RECOVER)
3147 card->state = CARD_STATE_RECOVER;
3149 card->state = CARD_STATE_DOWN;
3150 mutex_unlock(&card->conf_mutex);
3151 mutex_unlock(&card->discipline_mutex);
3155 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3157 return __qeth_l3_set_online(gdev, 0);
3160 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3163 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3164 int rc = 0, rc2 = 0, rc3 = 0;
3165 enum qeth_card_states recover_flag;
3167 mutex_lock(&card->discipline_mutex);
3168 mutex_lock(&card->conf_mutex);
3169 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3170 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3172 if (card->dev && netif_carrier_ok(card->dev))
3173 netif_carrier_off(card->dev);
3174 recover_flag = card->state;
3175 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3176 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3177 card->info.hwtrap = 1;
3179 qeth_l3_stop_card(card, recovery_mode);
3180 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3182 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3185 rc = ccw_device_set_offline(CARD_DDEV(card));
3186 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3187 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3189 rc = (rc2) ? rc2 : rc3;
3191 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3192 qdio_free(CARD_DDEV(card));
3193 if (recover_flag == CARD_STATE_UP)
3194 card->state = CARD_STATE_RECOVER;
3195 /* let user_space know that device is offline */
3196 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3197 mutex_unlock(&card->conf_mutex);
3198 mutex_unlock(&card->discipline_mutex);
3202 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3204 return __qeth_l3_set_offline(cgdev, 0);
3207 static int qeth_l3_recover(void *ptr)
3209 struct qeth_card *card;
3212 card = (struct qeth_card *) ptr;
3213 QETH_CARD_TEXT(card, 2, "recover1");
3214 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3215 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3217 QETH_CARD_TEXT(card, 2, "recover2");
3218 dev_warn(&card->gdev->dev,
3219 "A recovery process has been started for the device\n");
3220 qeth_set_recovery_task(card);
3221 __qeth_l3_set_offline(card->gdev, 1);
3222 rc = __qeth_l3_set_online(card->gdev, 1);
3224 dev_info(&card->gdev->dev,
3225 "Device successfully recovered!\n");
3227 qeth_close_dev(card);
3228 dev_warn(&card->gdev->dev, "The qeth device driver "
3229 "failed to recover an error on the device\n");
3231 qeth_clear_recovery_task(card);
3232 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3233 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3237 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3239 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3242 netif_device_detach(card->dev);
3243 qeth_set_allowed_threads(card, 0, 1);
3244 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3245 if (gdev->state == CCWGROUP_OFFLINE)
3247 if (card->state == CARD_STATE_UP) {
3248 if (card->info.hwtrap)
3249 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3250 __qeth_l3_set_offline(card->gdev, 1);
3252 __qeth_l3_set_offline(card->gdev, 0);
3256 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3258 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3261 if (gdev->state == CCWGROUP_OFFLINE)
3264 if (card->state == CARD_STATE_RECOVER) {
3265 rc = __qeth_l3_set_online(card->gdev, 1);
3268 dev_close(card->dev);
3272 rc = __qeth_l3_set_online(card->gdev, 0);
3274 qeth_set_allowed_threads(card, 0xffffffff, 0);
3276 netif_device_attach(card->dev);
3278 dev_warn(&card->gdev->dev, "The qeth device driver "
3279 "failed to recover an error on the device\n");
3283 /* Returns zero if the command is successfully "consumed" */
3284 static int qeth_l3_control_event(struct qeth_card *card,
3285 struct qeth_ipa_cmd *cmd)
3290 struct qeth_discipline qeth_l3_discipline = {
3291 .devtype = &qeth_l3_devtype,
3292 .start_poll = qeth_qdio_start_poll,
3293 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3294 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3295 .process_rx_buffer = qeth_l3_process_inbound_buffer,
3296 .recover = qeth_l3_recover,
3297 .setup = qeth_l3_probe_device,
3298 .remove = qeth_l3_remove_device,
3299 .set_online = qeth_l3_set_online,
3300 .set_offline = qeth_l3_set_offline,
3301 .freeze = qeth_l3_pm_suspend,
3302 .thaw = qeth_l3_pm_resume,
3303 .restore = qeth_l3_pm_resume,
3304 .do_ioctl = qeth_l3_do_ioctl,
3305 .control_event_handler = qeth_l3_control_event,
3307 EXPORT_SYMBOL_GPL(qeth_l3_discipline);
3309 static int qeth_l3_ip_event(struct notifier_block *this,
3310 unsigned long event, void *ptr)
3313 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3314 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3315 struct qeth_ipaddr *addr;
3316 struct qeth_card *card;
3318 if (dev_net(dev) != &init_net)
3321 card = qeth_l3_get_card_from_dev(dev);
3324 QETH_CARD_TEXT(card, 3, "ipevent");
3326 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3328 addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
3329 addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
3330 addr->type = QETH_IP_TYPE_NORMAL;
3336 spin_lock_bh(&card->ip_lock);
3337 qeth_l3_add_ip(card, addr);
3338 spin_unlock_bh(&card->ip_lock);
3341 spin_lock_bh(&card->ip_lock);
3342 qeth_l3_delete_ip(card, addr);
3343 spin_unlock_bh(&card->ip_lock);
3351 static struct notifier_block qeth_l3_ip_notifier = {
3356 #ifdef CONFIG_QETH_IPV6
3358 * IPv6 event handler
3360 static int qeth_l3_ip6_event(struct notifier_block *this,
3361 unsigned long event, void *ptr)
3363 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3364 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3365 struct qeth_ipaddr *addr;
3366 struct qeth_card *card;
3368 card = qeth_l3_get_card_from_dev(dev);
3371 QETH_CARD_TEXT(card, 3, "ip6event");
3372 if (!qeth_is_supported(card, IPA_IPV6))
3375 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3377 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3378 addr->u.a6.pfxlen = ifa->prefix_len;
3379 addr->type = QETH_IP_TYPE_NORMAL;
3385 spin_lock_bh(&card->ip_lock);
3386 qeth_l3_add_ip(card, addr);
3387 spin_unlock_bh(&card->ip_lock);
3390 spin_lock_bh(&card->ip_lock);
3391 qeth_l3_delete_ip(card, addr);
3392 spin_unlock_bh(&card->ip_lock);
3400 static struct notifier_block qeth_l3_ip6_notifier = {
3406 static int qeth_l3_register_notifiers(void)
3410 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3411 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3414 #ifdef CONFIG_QETH_IPV6
3415 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3417 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3421 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
3426 static void qeth_l3_unregister_notifiers(void)
3429 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3430 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3431 #ifdef CONFIG_QETH_IPV6
3432 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3433 #endif /* QETH_IPV6 */
3436 static int __init qeth_l3_init(void)
3440 pr_info("register layer 3 discipline\n");
3441 rc = qeth_l3_register_notifiers();
3445 static void __exit qeth_l3_exit(void)
3447 qeth_l3_unregister_notifiers();
3448 pr_info("unregister layer 3 discipline\n");
3451 module_init(qeth_l3_init);
3452 module_exit(qeth_l3_exit);
3453 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3454 MODULE_DESCRIPTION("qeth layer 3 discipline");
3455 MODULE_LICENSE("GPL");