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_ip_fragmentation(struct qeth_card *card)
963 QETH_CARD_TEXT(card, 3, "ipaipfrg");
965 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
966 dev_info(&card->gdev->dev,
967 "Hardware IP fragmentation not supported on %s\n",
968 QETH_CARD_IFNAME(card));
972 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
973 IPA_CMD_ASS_START, 0);
975 dev_warn(&card->gdev->dev,
976 "Starting IP fragmentation support for %s failed\n",
977 QETH_CARD_IFNAME(card));
979 dev_info(&card->gdev->dev,
980 "Hardware IP fragmentation enabled \n");
984 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
988 QETH_CARD_TEXT(card, 3, "stsrcmac");
990 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
991 dev_info(&card->gdev->dev,
992 "Inbound source MAC-address not supported on %s\n",
993 QETH_CARD_IFNAME(card));
997 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
998 IPA_CMD_ASS_START, 0);
1000 dev_warn(&card->gdev->dev,
1001 "Starting source MAC-address support for %s failed\n",
1002 QETH_CARD_IFNAME(card));
1006 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1010 QETH_CARD_TEXT(card, 3, "strtvlan");
1012 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1013 dev_info(&card->gdev->dev,
1014 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1018 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
1019 IPA_CMD_ASS_START, 0);
1021 dev_warn(&card->gdev->dev,
1022 "Starting VLAN support for %s failed\n",
1023 QETH_CARD_IFNAME(card));
1025 dev_info(&card->gdev->dev, "VLAN enabled\n");
1030 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1034 QETH_CARD_TEXT(card, 3, "stmcast");
1036 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1037 dev_info(&card->gdev->dev,
1038 "Multicast not supported on %s\n",
1039 QETH_CARD_IFNAME(card));
1043 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
1044 IPA_CMD_ASS_START, 0);
1046 dev_warn(&card->gdev->dev,
1047 "Starting multicast support for %s failed\n",
1048 QETH_CARD_IFNAME(card));
1050 dev_info(&card->gdev->dev, "Multicast enabled\n");
1051 card->dev->flags |= IFF_MULTICAST;
1056 #ifdef CONFIG_QETH_IPV6
1057 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1061 QETH_CARD_TEXT(card, 3, "softipv6");
1063 if (card->info.type == QETH_CARD_TYPE_IQD)
1066 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1068 dev_err(&card->gdev->dev,
1069 "Activating IPv6 support for %s failed\n",
1070 QETH_CARD_IFNAME(card));
1073 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
1074 IPA_CMD_ASS_START, 3);
1076 dev_err(&card->gdev->dev,
1077 "Activating IPv6 support for %s failed\n",
1078 QETH_CARD_IFNAME(card));
1081 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1084 dev_err(&card->gdev->dev,
1085 "Activating IPv6 support for %s failed\n",
1086 QETH_CARD_IFNAME(card));
1089 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1092 dev_warn(&card->gdev->dev,
1093 "Enabling the passthrough mode for %s failed\n",
1094 QETH_CARD_IFNAME(card));
1098 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1103 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1107 QETH_CARD_TEXT(card, 3, "strtipv6");
1109 if (!qeth_is_supported(card, IPA_IPV6)) {
1110 dev_info(&card->gdev->dev,
1111 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1114 #ifdef CONFIG_QETH_IPV6
1115 rc = qeth_l3_softsetup_ipv6(card);
1120 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1124 QETH_CARD_TEXT(card, 3, "stbrdcst");
1125 card->info.broadcast_capable = 0;
1126 if (!qeth_is_supported(card, IPA_FILTERING)) {
1127 dev_info(&card->gdev->dev,
1128 "Broadcast not supported on %s\n",
1129 QETH_CARD_IFNAME(card));
1133 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1134 IPA_CMD_ASS_START, 0);
1136 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1137 "%s failed\n", QETH_CARD_IFNAME(card));
1141 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1142 IPA_CMD_ASS_CONFIGURE, 1);
1144 dev_warn(&card->gdev->dev,
1145 "Setting up broadcast filtering for %s failed\n",
1146 QETH_CARD_IFNAME(card));
1149 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1150 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1151 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1152 IPA_CMD_ASS_ENABLE, 1);
1154 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1155 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1158 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1160 if (card->info.broadcast_capable)
1161 card->dev->flags |= IFF_BROADCAST;
1163 card->dev->flags &= ~IFF_BROADCAST;
1167 static int qeth_l3_start_ipassists(struct qeth_card *card)
1169 QETH_CARD_TEXT(card, 3, "strtipas");
1171 if (qeth_set_access_ctrl_online(card, 0))
1173 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1174 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1175 qeth_l3_start_ipa_source_mac(card); /* go on*/
1176 qeth_l3_start_ipa_vlan(card); /* go on*/
1177 qeth_l3_start_ipa_multicast(card); /* go on*/
1178 qeth_l3_start_ipa_ipv6(card); /* go on*/
1179 qeth_l3_start_ipa_broadcast(card); /* go on*/
1183 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1184 struct qeth_reply *reply, unsigned long data)
1186 struct qeth_ipa_cmd *cmd;
1188 cmd = (struct qeth_ipa_cmd *) data;
1189 if (cmd->hdr.return_code == 0)
1190 memcpy(card->dev->dev_addr,
1191 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1193 eth_random_addr(card->dev->dev_addr);
1198 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1201 struct qeth_cmd_buffer *iob;
1202 struct qeth_ipa_cmd *cmd;
1204 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1206 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1210 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1211 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1212 card->info.unique_id;
1214 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1219 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1220 struct qeth_reply *reply, unsigned long data)
1222 struct qeth_ipa_cmd *cmd;
1224 cmd = (struct qeth_ipa_cmd *) data;
1225 if (cmd->hdr.return_code == 0)
1226 card->info.unique_id = *((__u16 *)
1227 &cmd->data.create_destroy_addr.unique_id[6]);
1229 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1230 UNIQUE_ID_NOT_BY_CARD;
1231 dev_warn(&card->gdev->dev, "The network adapter failed to "
1232 "generate a unique ID\n");
1237 static int qeth_l3_get_unique_id(struct qeth_card *card)
1240 struct qeth_cmd_buffer *iob;
1241 struct qeth_ipa_cmd *cmd;
1243 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1245 if (!qeth_is_supported(card, IPA_IPV6)) {
1246 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1247 UNIQUE_ID_NOT_BY_CARD;
1251 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1255 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1256 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1257 card->info.unique_id;
1259 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1264 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1267 struct qeth_ipa_cmd *cmd;
1270 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1272 cmd = (struct qeth_ipa_cmd *)data;
1273 rc = cmd->hdr.return_code;
1275 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1276 switch (cmd->data.diagass.action) {
1277 case QETH_DIAGS_CMD_TRACE_QUERY:
1279 case QETH_DIAGS_CMD_TRACE_DISABLE:
1282 case IPA_RC_INVALID_SUBCMD:
1283 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1284 dev_info(&card->gdev->dev, "The HiperSockets network "
1285 "traffic analyzer is deactivated\n");
1291 case QETH_DIAGS_CMD_TRACE_ENABLE:
1294 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1295 dev_info(&card->gdev->dev, "The HiperSockets network "
1296 "traffic analyzer is activated\n");
1298 case IPA_RC_HARDWARE_AUTH_ERROR:
1299 dev_warn(&card->gdev->dev, "The device is not "
1300 "authorized to run as a HiperSockets network "
1301 "traffic analyzer\n");
1303 case IPA_RC_TRACE_ALREADY_ACTIVE:
1304 dev_warn(&card->gdev->dev, "A HiperSockets "
1305 "network traffic analyzer is already "
1306 "active in the HiperSockets LAN\n");
1313 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1314 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1321 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1323 struct qeth_cmd_buffer *iob;
1324 struct qeth_ipa_cmd *cmd;
1326 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1328 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1331 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1332 cmd->data.diagass.subcmd_len = 16;
1333 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1334 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1335 cmd->data.diagass.action = diags_cmd;
1336 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1339 static void qeth_l3_get_mac_for_ipm(__be32 ipm, char *mac)
1341 ip_eth_mc_map(ipm, mac);
1344 static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card *card)
1346 struct qeth_ipaddr *addr;
1349 hash_for_each(card->ip_mc_htable, i, addr, hnode)
1350 addr->disp_flag = QETH_DISP_ADDR_DELETE;
1354 static void qeth_l3_add_all_new_mc(struct qeth_card *card)
1356 struct qeth_ipaddr *addr;
1357 struct hlist_node *tmp;
1361 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1362 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
1363 rc = qeth_l3_register_addr_entry(card, addr);
1364 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
1365 addr->ref_counter = 1;
1367 hash_del(&addr->hnode);
1375 static void qeth_l3_delete_nonused_mc(struct qeth_card *card)
1377 struct qeth_ipaddr *addr;
1378 struct hlist_node *tmp;
1382 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1383 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
1384 rc = qeth_l3_deregister_addr_entry(card, addr);
1385 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) {
1386 hash_del(&addr->hnode);
1396 qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
1398 struct ip_mc_list *im4;
1399 struct qeth_ipaddr *tmp, *ipm;
1400 char buf[MAX_ADDR_LEN];
1402 QETH_CARD_TEXT(card, 4, "addmc");
1404 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1408 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1409 im4 = rcu_dereference(im4->next_rcu)) {
1410 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf);
1412 tmp->u.a4.addr = be32_to_cpu(im4->multiaddr);
1413 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1415 ipm = qeth_l3_ip_from_hash(card, tmp);
1417 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1419 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1422 memcpy(ipm->mac, buf, sizeof(tmp->mac));
1423 ipm->u.a4.addr = be32_to_cpu(im4->multiaddr);
1424 ipm->is_multicast = 1;
1425 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1426 hash_add(card->ip_mc_htable,
1427 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1434 /* called with rcu_read_lock */
1435 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1437 struct in_device *in_dev;
1440 QETH_CARD_TEXT(card, 4, "addmcvl");
1442 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1445 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1446 struct net_device *netdev;
1448 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1450 if (netdev == NULL ||
1451 !(netdev->flags & IFF_UP))
1453 in_dev = __in_dev_get_rcu(netdev);
1456 qeth_l3_add_mc_to_hash(card, in_dev);
1460 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1462 struct in_device *in4_dev;
1464 QETH_CARD_TEXT(card, 4, "chkmcv4");
1467 in4_dev = __in_dev_get_rcu(card->dev);
1468 if (in4_dev == NULL)
1470 qeth_l3_add_mc_to_hash(card, in4_dev);
1471 qeth_l3_add_vlan_mc(card);
1476 #ifdef CONFIG_QETH_IPV6
1478 qeth_l3_add_mc6_to_hash(struct qeth_card *card, struct inet6_dev *in6_dev)
1480 struct qeth_ipaddr *ipm;
1481 struct ifmcaddr6 *im6;
1482 struct qeth_ipaddr *tmp;
1483 char buf[MAX_ADDR_LEN];
1485 QETH_CARD_TEXT(card, 4, "addmc6");
1487 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1491 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1492 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1494 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1495 memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
1496 sizeof(struct in6_addr));
1497 tmp->is_multicast = 1;
1499 ipm = qeth_l3_ip_from_hash(card, tmp);
1501 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1505 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1509 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1510 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1511 sizeof(struct in6_addr));
1512 ipm->is_multicast = 1;
1513 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1514 hash_add(card->ip_mc_htable,
1515 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1521 /* called with rcu_read_lock */
1522 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1524 struct inet6_dev *in_dev;
1527 QETH_CARD_TEXT(card, 4, "admc6vl");
1529 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1532 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1533 struct net_device *netdev;
1535 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1537 if (netdev == NULL ||
1538 !(netdev->flags & IFF_UP))
1540 in_dev = in6_dev_get(netdev);
1543 read_lock_bh(&in_dev->lock);
1544 qeth_l3_add_mc6_to_hash(card, in_dev);
1545 read_unlock_bh(&in_dev->lock);
1546 in6_dev_put(in_dev);
1550 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1552 struct inet6_dev *in6_dev;
1554 QETH_CARD_TEXT(card, 4, "chkmcv6");
1556 if (!qeth_is_supported(card, IPA_IPV6))
1558 in6_dev = in6_dev_get(card->dev);
1563 read_lock_bh(&in6_dev->lock);
1564 qeth_l3_add_mc6_to_hash(card, in6_dev);
1565 qeth_l3_add_vlan_mc6(card);
1566 read_unlock_bh(&in6_dev->lock);
1568 in6_dev_put(in6_dev);
1570 #endif /* CONFIG_QETH_IPV6 */
1572 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1575 struct in_device *in_dev;
1576 struct in_ifaddr *ifa;
1577 struct qeth_ipaddr *addr;
1578 struct net_device *netdev;
1580 QETH_CARD_TEXT(card, 4, "frvaddr4");
1582 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1585 in_dev = in_dev_get(netdev);
1589 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1593 spin_lock_bh(&card->ip_lock);
1595 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1596 addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
1597 addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
1598 addr->type = QETH_IP_TYPE_NORMAL;
1599 qeth_l3_delete_ip(card, addr);
1602 spin_unlock_bh(&card->ip_lock);
1608 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1611 #ifdef CONFIG_QETH_IPV6
1612 struct inet6_dev *in6_dev;
1613 struct inet6_ifaddr *ifa;
1614 struct qeth_ipaddr *addr;
1615 struct net_device *netdev;
1617 QETH_CARD_TEXT(card, 4, "frvaddr6");
1619 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1623 in6_dev = in6_dev_get(netdev);
1627 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1631 spin_lock_bh(&card->ip_lock);
1633 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1634 memcpy(&addr->u.a6.addr, &ifa->addr,
1635 sizeof(struct in6_addr));
1636 addr->u.a6.pfxlen = ifa->prefix_len;
1637 addr->type = QETH_IP_TYPE_NORMAL;
1638 qeth_l3_delete_ip(card, addr);
1641 spin_unlock_bh(&card->ip_lock);
1644 in6_dev_put(in6_dev);
1645 #endif /* CONFIG_QETH_IPV6 */
1648 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1652 qeth_l3_free_vlan_addresses4(card, vid);
1653 qeth_l3_free_vlan_addresses6(card, vid);
1657 static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1658 __be16 proto, u16 vid)
1660 struct qeth_card *card = dev->ml_priv;
1662 set_bit(vid, card->active_vlans);
1666 static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1667 __be16 proto, u16 vid)
1669 struct qeth_card *card = dev->ml_priv;
1671 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1673 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1674 QETH_CARD_TEXT(card, 3, "kidREC");
1677 /* unregister IP addresses of vlan device */
1678 qeth_l3_free_vlan_addresses(card, vid);
1679 clear_bit(vid, card->active_vlans);
1680 qeth_l3_set_multicast_list(card->dev);
1684 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1685 struct sk_buff *skb, struct qeth_hdr *hdr,
1686 unsigned short *vlan_id)
1689 struct iphdr *ip_hdr;
1690 unsigned char tg_addr[MAX_ADDR_LEN];
1693 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1694 prot = (hdr->hdr.l3.flags & QETH_HDR_IPV6) ? ETH_P_IPV6 :
1696 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1697 case QETH_CAST_MULTICAST:
1699 #ifdef CONFIG_QETH_IPV6
1701 ndisc_mc_map((struct in6_addr *)
1703 tg_addr, card->dev, 0);
1707 ip_hdr = (struct iphdr *)skb->data;
1708 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1711 memcpy(tg_addr, card->dev->broadcast,
1712 card->dev->addr_len);
1714 card->stats.multicast++;
1715 skb->pkt_type = PACKET_MULTICAST;
1717 case QETH_CAST_BROADCAST:
1718 memcpy(tg_addr, card->dev->broadcast,
1719 card->dev->addr_len);
1720 card->stats.multicast++;
1721 skb->pkt_type = PACKET_BROADCAST;
1723 case QETH_CAST_UNICAST:
1724 case QETH_CAST_ANYCAST:
1725 case QETH_CAST_NOCAST:
1727 if (card->options.sniffer)
1728 skb->pkt_type = PACKET_OTHERHOST;
1730 skb->pkt_type = PACKET_HOST;
1731 memcpy(tg_addr, card->dev->dev_addr,
1732 card->dev->addr_len);
1734 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1735 card->dev->header_ops->create(skb, card->dev, prot,
1736 tg_addr, &hdr->hdr.l3.dest_addr[2],
1737 card->dev->addr_len);
1739 card->dev->header_ops->create(skb, card->dev, prot,
1740 tg_addr, "FAKELL", card->dev->addr_len);
1743 skb->protocol = eth_type_trans(skb, card->dev);
1745 if (hdr->hdr.l3.ext_flags &
1746 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1747 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
1748 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1752 if (card->dev->features & NETIF_F_RXCSUM) {
1753 if ((hdr->hdr.l3.ext_flags &
1754 (QETH_HDR_EXT_CSUM_HDR_REQ |
1755 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1756 (QETH_HDR_EXT_CSUM_HDR_REQ |
1757 QETH_HDR_EXT_CSUM_TRANSP_REQ))
1758 skb->ip_summed = CHECKSUM_UNNECESSARY;
1760 skb->ip_summed = CHECKSUM_NONE;
1762 skb->ip_summed = CHECKSUM_NONE;
1766 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1767 int budget, int *done)
1770 struct sk_buff *skb;
1771 struct qeth_hdr *hdr;
1778 WARN_ON_ONCE(!budget);
1780 skb = qeth_core_get_next_skb(card,
1781 &card->qdio.in_q->bufs[card->rx.b_index],
1782 &card->rx.b_element, &card->rx.e_offset, &hdr);
1787 skb->dev = card->dev;
1788 switch (hdr->hdr.l3.id) {
1789 case QETH_HEADER_TYPE_LAYER3:
1790 magic = *(__u16 *)skb->data;
1791 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1792 (magic == ETH_P_AF_IUCV)) {
1793 skb->protocol = cpu_to_be16(ETH_P_AF_IUCV);
1794 skb->pkt_type = PACKET_HOST;
1795 skb->mac_header = NET_SKB_PAD;
1796 skb->dev = card->dev;
1798 card->dev->header_ops->create(skb, card->dev, 0,
1799 card->dev->dev_addr, "FAKELL",
1800 card->dev->addr_len);
1801 netif_receive_skb(skb);
1803 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
1806 if (is_vlan && !card->options.sniffer)
1807 __vlan_hwaccel_put_tag(skb,
1808 htons(ETH_P_8021Q), vlan_tag);
1809 napi_gro_receive(&card->napi, skb);
1812 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1813 skb->pkt_type = PACKET_HOST;
1814 skb->protocol = eth_type_trans(skb, skb->dev);
1816 netif_receive_skb(skb);
1819 dev_kfree_skb_any(skb);
1820 QETH_CARD_TEXT(card, 3, "inbunkno");
1821 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
1826 card->stats.rx_packets++;
1827 card->stats.rx_bytes += len;
1832 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1833 struct qeth_card *card)
1838 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1839 struct net_device *netdev;
1842 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1845 if (netdev == dev) {
1846 rc = QETH_VLAN_CARD;
1851 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
1857 static int qeth_l3_verify_dev(struct net_device *dev)
1859 struct qeth_card *card;
1861 unsigned long flags;
1863 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
1864 list_for_each_entry(card, &qeth_core_card_list.list, list) {
1865 if (card->dev == dev) {
1866 rc = QETH_REAL_CARD;
1869 rc = qeth_l3_verify_vlan_dev(dev, card);
1873 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
1878 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
1880 struct qeth_card *card = NULL;
1883 rc = qeth_l3_verify_dev(dev);
1884 if (rc == QETH_REAL_CARD)
1885 card = dev->ml_priv;
1886 else if (rc == QETH_VLAN_CARD)
1887 card = vlan_dev_real_dev(dev)->ml_priv;
1888 if (card && card->options.layer2)
1891 QETH_CARD_TEXT_(card, 4, "%d", rc);
1895 static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
1897 QETH_DBF_TEXT(SETUP, 2, "stopcard");
1898 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1900 qeth_set_allowed_threads(card, 0, 1);
1901 if (card->options.sniffer &&
1902 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
1903 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
1904 if (card->read.state == CH_STATE_UP &&
1905 card->write.state == CH_STATE_UP &&
1906 (card->state == CARD_STATE_UP)) {
1908 qeth_l3_stop(card->dev);
1911 dev_close(card->dev);
1914 card->state = CARD_STATE_SOFTSETUP;
1916 if (card->state == CARD_STATE_SOFTSETUP) {
1917 qeth_l3_clear_ip_htable(card, 1);
1918 qeth_clear_ipacmd_list(card);
1919 card->state = CARD_STATE_HARDSETUP;
1921 if (card->state == CARD_STATE_HARDSETUP) {
1922 qeth_qdio_clear_card(card, 0);
1923 qeth_clear_qdio_buffers(card);
1924 qeth_clear_working_pool_list(card);
1925 card->state = CARD_STATE_DOWN;
1927 if (card->state == CARD_STATE_DOWN) {
1928 qeth_clear_cmd_buffers(&card->read);
1929 qeth_clear_cmd_buffers(&card->write);
1934 * test for and Switch promiscuous mode (on or off)
1935 * either for guestlan or HiperSocket Sniffer
1938 qeth_l3_handle_promisc_mode(struct qeth_card *card)
1940 struct net_device *dev = card->dev;
1942 if (((dev->flags & IFF_PROMISC) &&
1943 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
1944 (!(dev->flags & IFF_PROMISC) &&
1945 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
1948 if (card->info.guestlan) { /* Guestlan trace */
1949 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
1950 qeth_setadp_promisc_mode(card);
1951 } else if (card->options.sniffer && /* HiperSockets trace */
1952 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
1953 if (dev->flags & IFF_PROMISC) {
1954 QETH_CARD_TEXT(card, 3, "+promisc");
1955 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
1957 QETH_CARD_TEXT(card, 3, "-promisc");
1958 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
1963 static void qeth_l3_set_multicast_list(struct net_device *dev)
1965 struct qeth_card *card = dev->ml_priv;
1967 QETH_CARD_TEXT(card, 3, "setmulti");
1968 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
1969 (card->state != CARD_STATE_UP))
1971 if (!card->options.sniffer) {
1973 spin_lock_bh(&card->mclock);
1975 qeth_l3_mark_all_mc_to_be_deleted(card);
1977 qeth_l3_add_multicast_ipv4(card);
1978 #ifdef CONFIG_QETH_IPV6
1979 qeth_l3_add_multicast_ipv6(card);
1981 qeth_l3_delete_nonused_mc(card);
1982 qeth_l3_add_all_new_mc(card);
1984 spin_unlock_bh(&card->mclock);
1986 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
1989 qeth_l3_handle_promisc_mode(card);
1992 static const char *qeth_l3_arp_get_error_cause(int *rc)
1995 case QETH_IPA_ARP_RC_FAILED:
1997 return "operation failed";
1998 case QETH_IPA_ARP_RC_NOTSUPP:
2000 return "operation not supported";
2001 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2003 return "argument out of range";
2004 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2006 return "query operation not supported";
2007 case QETH_IPA_ARP_RC_Q_NO_DATA:
2009 return "no query data available";
2011 return "unknown error";
2015 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2020 QETH_CARD_TEXT(card, 3, "arpstnoe");
2023 * currently GuestLAN only supports the ARP assist function
2024 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2025 * thus we say EOPNOTSUPP for this ARP function
2027 if (card->info.guestlan)
2029 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2032 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2033 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2037 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2038 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2039 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2044 static __u32 get_arp_entry_size(struct qeth_card *card,
2045 struct qeth_arp_query_data *qdata,
2046 struct qeth_arp_entrytype *type, __u8 strip_entries)
2051 is_hsi = qdata->reply_bits == 5;
2052 if (type->ip == QETHARP_IP_ADDR_V4) {
2053 QETH_CARD_TEXT(card, 4, "arpev4");
2054 if (strip_entries) {
2055 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2056 sizeof(struct qeth_arp_qi_entry7_short);
2058 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2059 sizeof(struct qeth_arp_qi_entry7);
2061 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2062 QETH_CARD_TEXT(card, 4, "arpev6");
2063 if (strip_entries) {
2065 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2066 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2069 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2070 sizeof(struct qeth_arp_qi_entry7_ipv6);
2073 QETH_CARD_TEXT(card, 4, "arpinv");
2080 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2082 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2083 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2086 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2087 struct qeth_reply *reply, unsigned long data)
2089 struct qeth_ipa_cmd *cmd;
2090 struct qeth_arp_query_data *qdata;
2091 struct qeth_arp_query_info *qinfo;
2094 int entrybytes_done;
2096 __u8 do_strip_entries;
2098 QETH_CARD_TEXT(card, 3, "arpquecb");
2100 qinfo = (struct qeth_arp_query_info *) reply->param;
2101 cmd = (struct qeth_ipa_cmd *) data;
2102 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2103 if (cmd->hdr.return_code) {
2104 QETH_CARD_TEXT(card, 4, "arpcberr");
2105 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2108 if (cmd->data.setassparms.hdr.return_code) {
2109 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2110 QETH_CARD_TEXT(card, 4, "setaperr");
2111 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2114 qdata = &cmd->data.setassparms.data.query_arp;
2115 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2117 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2118 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2119 entrybytes_done = 0;
2120 for (e = 0; e < qdata->no_entries; ++e) {
2123 struct qeth_arp_entrytype *etype;
2125 cur_entry = &qdata->data + entrybytes_done;
2126 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2127 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2128 QETH_CARD_TEXT(card, 4, "pmis");
2129 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2132 esize = get_arp_entry_size(card, qdata, etype,
2134 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2138 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2139 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2140 cmd->hdr.return_code = IPA_RC_ENOMEM;
2144 memcpy(qinfo->udata + qinfo->udata_offset,
2145 &qdata->data + entrybytes_done + stripped_bytes,
2147 entrybytes_done += esize + stripped_bytes;
2148 qinfo->udata_offset += esize;
2149 ++qinfo->no_entries;
2151 /* check if all replies received ... */
2152 if (cmd->data.setassparms.hdr.seq_no <
2153 cmd->data.setassparms.hdr.number_of_replies)
2155 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2156 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2157 /* keep STRIP_ENTRIES flag so the user program can distinguish
2158 * stripped entries from normal ones */
2159 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2160 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2161 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2162 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2166 memcpy(qinfo->udata, &i, 4);
2170 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2171 struct qeth_cmd_buffer *iob, int len,
2172 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2176 QETH_CARD_TEXT(card, 4, "sendarp");
2178 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2179 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2180 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2181 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2182 reply_cb, reply_param);
2185 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2186 enum qeth_prot_versions prot,
2187 struct qeth_arp_query_info *qinfo)
2189 struct qeth_cmd_buffer *iob;
2190 struct qeth_ipa_cmd *cmd;
2194 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2196 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2197 IPA_CMD_ASS_ARP_QUERY_INFO,
2198 sizeof(struct qeth_arp_query_data)
2203 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2204 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2205 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2206 cmd->data.setassparms.data.query_arp.no_entries = 0;
2207 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2208 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2209 qeth_l3_arp_query_cb, (void *)qinfo);
2213 "Error while querying ARP cache on %s: %s "
2214 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2215 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2221 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2223 struct qeth_arp_query_info qinfo = {0, };
2226 QETH_CARD_TEXT(card, 3, "arpquery");
2228 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2229 IPA_ARP_PROCESSING)) {
2230 QETH_CARD_TEXT(card, 3, "arpqnsup");
2234 /* get size of userspace buffer and mask_bits -> 6 bytes */
2235 if (copy_from_user(&qinfo, udata, 6)) {
2239 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2244 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2245 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2247 if (copy_to_user(udata, qinfo.udata, 4))
2251 #ifdef CONFIG_QETH_IPV6
2252 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2253 /* fails in case of GuestLAN QDIO mode */
2254 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6, &qinfo);
2257 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2258 QETH_CARD_TEXT(card, 4, "qactf");
2262 QETH_CARD_TEXT(card, 4, "qacts");
2270 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2271 struct qeth_arp_cache_entry *entry)
2273 struct qeth_cmd_buffer *iob;
2278 QETH_CARD_TEXT(card, 3, "arpadent");
2281 * currently GuestLAN only supports the ARP assist function
2282 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2283 * thus we say EOPNOTSUPP for this ARP function
2285 if (card->info.guestlan)
2287 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2291 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2292 IPA_CMD_ASS_ARP_ADD_ENTRY,
2293 sizeof(struct qeth_arp_cache_entry),
2297 rc = qeth_send_setassparms(card, iob,
2298 sizeof(struct qeth_arp_cache_entry),
2299 (unsigned long) entry,
2300 qeth_setassparms_cb, NULL);
2303 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2304 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2305 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2306 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2311 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2312 struct qeth_arp_cache_entry *entry)
2314 struct qeth_cmd_buffer *iob;
2315 char buf[16] = {0, };
2319 QETH_CARD_TEXT(card, 3, "arprment");
2322 * currently GuestLAN only supports the ARP assist function
2323 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2324 * thus we say EOPNOTSUPP for this ARP function
2326 if (card->info.guestlan)
2328 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2331 memcpy(buf, entry, 12);
2332 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2333 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2338 rc = qeth_send_setassparms(card, iob,
2339 12, (unsigned long)buf,
2340 qeth_setassparms_cb, NULL);
2344 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2345 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2346 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2347 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2352 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2357 QETH_CARD_TEXT(card, 3, "arpflush");
2360 * currently GuestLAN only supports the ARP assist function
2361 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2362 * thus we say EOPNOTSUPP for this ARP function
2364 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2366 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2369 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2370 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2373 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2374 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2375 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2380 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2382 struct qeth_card *card = dev->ml_priv;
2383 struct qeth_arp_cache_entry arp_entry;
2387 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2388 if (!capable(CAP_NET_ADMIN)) {
2392 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2394 case SIOC_QETH_ARP_QUERY_INFO:
2395 if (!capable(CAP_NET_ADMIN)) {
2399 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2401 case SIOC_QETH_ARP_ADD_ENTRY:
2402 if (!capable(CAP_NET_ADMIN)) {
2406 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2407 sizeof(struct qeth_arp_cache_entry)))
2410 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2412 case SIOC_QETH_ARP_REMOVE_ENTRY:
2413 if (!capable(CAP_NET_ADMIN)) {
2417 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2418 sizeof(struct qeth_arp_cache_entry)))
2421 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2423 case SIOC_QETH_ARP_FLUSH_CACHE:
2424 if (!capable(CAP_NET_ADMIN)) {
2428 rc = qeth_l3_arp_flush_cache(card);
2436 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2438 int cast_type = RTN_UNSPEC;
2439 struct neighbour *n = NULL;
2440 struct dst_entry *dst;
2445 n = dst_neigh_lookup_skb(dst, skb);
2447 cast_type = n->type;
2450 if ((cast_type == RTN_BROADCAST) ||
2451 (cast_type == RTN_MULTICAST) ||
2452 (cast_type == RTN_ANYCAST))
2459 /* try something else */
2460 if (be16_to_cpu(skb->protocol) == ETH_P_IPV6)
2461 return (skb_network_header(skb)[24] == 0xff) ?
2463 else if (be16_to_cpu(skb->protocol) == ETH_P_IP)
2464 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2467 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2468 return RTN_BROADCAST;
2472 hdr_mac = *((u16 *)skb->data);
2474 switch (card->info.link_type) {
2475 case QETH_LINK_TYPE_HSTR:
2476 case QETH_LINK_TYPE_LANE_TR:
2477 if ((hdr_mac == QETH_TR_MAC_NC) ||
2478 (hdr_mac == QETH_TR_MAC_C))
2479 return RTN_MULTICAST;
2481 /* eth or so multicast? */
2483 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2484 (hdr_mac == QETH_ETH_MAC_V6))
2485 return RTN_MULTICAST;
2491 static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2492 struct qeth_hdr *hdr, struct sk_buff *skb)
2495 struct af_iucv_trans_hdr *iucv_hdr;
2497 memset(hdr, 0, sizeof(struct qeth_hdr));
2498 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2499 hdr->hdr.l3.ext_flags = 0;
2500 hdr->hdr.l3.length = skb->len - ETH_HLEN;
2501 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2503 iucv_hdr = (struct af_iucv_trans_hdr *) (skb->data + ETH_HLEN);
2504 memset(daddr, 0, sizeof(daddr));
2507 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2508 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2511 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2512 struct sk_buff *skb, int ipv, int cast_type)
2514 struct dst_entry *dst;
2516 memset(hdr, 0, sizeof(struct qeth_hdr));
2517 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2518 hdr->hdr.l3.ext_flags = 0;
2521 * before we're going to overwrite this location with next hop ip.
2522 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2524 if (skb_vlan_tag_present(skb)) {
2525 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2526 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2528 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2529 hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
2532 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2537 struct rtable *rt = (struct rtable *) dst;
2538 __be32 *pkey = &ip_hdr(skb)->daddr;
2541 pkey = &rt->rt_gateway;
2544 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2545 memset(hdr->hdr.l3.dest_addr, 0, 12);
2546 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
2547 } else if (ipv == 6) {
2548 struct rt6_info *rt = (struct rt6_info *) dst;
2549 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2551 if (!ipv6_addr_any(&rt->rt6i_gateway))
2552 pkey = &rt->rt6i_gateway;
2555 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2556 if (card->info.type == QETH_CARD_TYPE_IQD)
2557 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2558 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
2560 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2561 skb->dev->broadcast, 6)) {
2563 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2566 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2567 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2568 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2574 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2575 struct qeth_hdr *hdr, struct sk_buff *skb)
2577 struct iphdr *iph = ip_hdr(skb);
2579 /* tcph->check contains already the pseudo hdr checksum
2580 * so just set the header flags
2582 if (iph->protocol == IPPROTO_UDP)
2583 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2584 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2585 QETH_HDR_EXT_CSUM_HDR_REQ;
2587 if (card->options.performance_stats)
2588 card->perf_stats.tx_csum++;
2591 static void qeth_tso_fill_header(struct qeth_card *card,
2592 struct qeth_hdr *qhdr, struct sk_buff *skb)
2594 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2595 struct tcphdr *tcph = tcp_hdr(skb);
2596 struct iphdr *iph = ip_hdr(skb);
2597 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2599 /*fix header to TSO values ...*/
2600 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2601 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2602 /*set values which are fix for the first approach ...*/
2603 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2604 hdr->ext.imb_hdr_no = 1;
2605 hdr->ext.hdr_type = 1;
2606 hdr->ext.hdr_version = 1;
2607 hdr->ext.hdr_len = 28;
2608 /*insert non-fix values */
2609 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2610 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2611 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2612 sizeof(struct qeth_hdr_tso));
2614 if (be16_to_cpu(skb->protocol) == ETH_P_IPV6) {
2615 ip6h->payload_len = 0;
2616 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2619 /*OSA want us to set these values ...*/
2620 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2628 * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
2629 * @card: qeth card structure, to check max. elems.
2631 * @extra_elems: extra elems needed, to check against max.
2633 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
2634 * skb data, including linear part and fragments, but excluding TCP header.
2635 * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
2636 * Checks if the result plus extra_elems fits under the limit for the card.
2637 * Returns 0 if it does not.
2638 * Note: extra_elems is not included in the returned result.
2640 static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
2641 struct sk_buff *skb, int extra_elems)
2643 addr_t tcpdptr = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
2644 int elements = qeth_get_elements_for_range(
2646 (addr_t)skb->data + skb_headlen(skb)) +
2647 qeth_get_elements_for_frags(skb);
2649 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2651 "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
2652 elements + extra_elems, skb->len);
2658 static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb,
2659 struct net_device *dev)
2663 struct qeth_hdr *hdr = NULL;
2664 int hdr_elements = 0;
2666 struct qeth_card *card = dev->ml_priv;
2667 struct sk_buff *new_skb = NULL;
2668 int ipv = qeth_get_ip_version(skb);
2669 int cast_type = qeth_l3_get_cast_type(card, skb);
2670 struct qeth_qdio_out_q *queue =
2671 card->qdio.out_qs[card->qdio.do_prio_queueing
2672 || (cast_type && card->info.is_multicast_different) ?
2673 qeth_get_priority_queue(card, skb, ipv, cast_type) :
2674 card->qdio.default_out_queue];
2675 int tx_bytes = skb->len;
2677 int data_offset = -1;
2680 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2681 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2682 ((card->options.cq == QETH_CQ_ENABLED) &&
2683 (be16_to_cpu(skb->protocol) != ETH_P_AF_IUCV)))) ||
2684 card->options.sniffer)
2687 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2688 card->stats.tx_carrier_errors++;
2692 if ((cast_type == RTN_BROADCAST) &&
2693 (card->info.broadcast_capable == 0))
2696 if (card->options.performance_stats) {
2697 card->perf_stats.outbound_cnt++;
2698 card->perf_stats.outbound_start_time = qeth_get_micros();
2701 /* Ignore segment size from skb_is_gso(), 1 page is always used. */
2702 use_tso = skb_is_gso(skb) &&
2703 (qeth_get_ip_protocol(skb) == IPPROTO_TCP) && (ipv == 4);
2705 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2706 !skb_is_nonlinear(skb)) {
2708 data_offset = ETH_HLEN;
2709 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2714 /* create a clone with writeable headroom */
2715 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2721 if (card->info.type == QETH_CARD_TYPE_IQD) {
2722 if (data_offset < 0)
2723 skb_pull(new_skb, ETH_HLEN);
2726 skb_pull(new_skb, ETH_HLEN);
2729 if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
2730 skb_push(new_skb, VLAN_HLEN);
2731 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2732 skb_copy_to_linear_data_offset(new_skb, 4,
2733 new_skb->data + 8, 4);
2734 skb_copy_to_linear_data_offset(new_skb, 8,
2735 new_skb->data + 12, 4);
2736 tag = (__be16 *)(new_skb->data + 12);
2737 *tag = cpu_to_be16(ETH_P_8021Q);
2738 *(tag + 1) = cpu_to_be16(skb_vlan_tag_get(new_skb));
2742 netif_stop_queue(dev);
2744 /* fix hardware limitation: as long as we do not have sbal
2745 * chaining we can not send long frag lists
2747 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
2748 ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) ||
2749 (!use_tso && !qeth_get_elements_no(card, new_skb, 0, 0)))) {
2750 int lin_rc = skb_linearize(new_skb);
2752 if (card->options.performance_stats) {
2754 card->perf_stats.tx_linfail++;
2756 card->perf_stats.tx_lin++;
2763 hdr = (struct qeth_hdr *)skb_push(new_skb,
2764 sizeof(struct qeth_hdr_tso));
2765 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2766 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2767 qeth_tso_fill_header(card, hdr, new_skb);
2770 if (data_offset < 0) {
2771 hdr = (struct qeth_hdr *)skb_push(new_skb,
2772 sizeof(struct qeth_hdr));
2773 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2776 if (be16_to_cpu(new_skb->protocol) == ETH_P_AF_IUCV)
2777 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
2779 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2781 hdr->hdr.l3.length = new_skb->len - data_offset;
2785 if (skb->ip_summed == CHECKSUM_PARTIAL)
2786 qeth_l3_hdr_csum(card, hdr, new_skb);
2789 elements = use_tso ?
2790 qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) :
2791 qeth_get_elements_no(card, new_skb, hdr_elements,
2792 (data_offset > 0) ? data_offset : 0);
2794 if (data_offset >= 0)
2795 kmem_cache_free(qeth_core_header_cache, hdr);
2798 elements += hdr_elements;
2800 if (card->info.type != QETH_CARD_TYPE_IQD) {
2803 len = ((unsigned long)tcp_hdr(new_skb) +
2804 tcp_hdrlen(new_skb)) -
2805 (unsigned long)new_skb->data;
2807 len = sizeof(struct qeth_hdr_layer3);
2809 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
2811 rc = qeth_do_send_packet(card, queue, new_skb, hdr, elements);
2813 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
2817 card->stats.tx_packets++;
2818 card->stats.tx_bytes += tx_bytes;
2820 dev_kfree_skb_any(skb);
2821 if (card->options.performance_stats) {
2822 nr_frags = skb_shinfo(new_skb)->nr_frags;
2824 card->perf_stats.large_send_bytes += tx_bytes;
2825 card->perf_stats.large_send_cnt++;
2828 card->perf_stats.sg_skbs_sent++;
2829 /* nr_frags + skb->data */
2830 card->perf_stats.sg_frags_sent += nr_frags + 1;
2835 if (data_offset >= 0)
2836 kmem_cache_free(qeth_core_header_cache, hdr);
2840 dev_kfree_skb_any(new_skb);
2841 return NETDEV_TX_BUSY;
2846 netif_wake_queue(dev);
2847 if (card->options.performance_stats)
2848 card->perf_stats.outbound_time += qeth_get_micros() -
2849 card->perf_stats.outbound_start_time;
2853 card->stats.tx_dropped++;
2854 card->stats.tx_errors++;
2855 if ((new_skb != skb) && new_skb)
2856 dev_kfree_skb_any(new_skb);
2857 dev_kfree_skb_any(skb);
2858 netif_wake_queue(dev);
2859 return NETDEV_TX_OK;
2862 static int __qeth_l3_open(struct net_device *dev)
2864 struct qeth_card *card = dev->ml_priv;
2867 QETH_CARD_TEXT(card, 4, "qethopen");
2868 if (card->state == CARD_STATE_UP)
2870 if (card->state != CARD_STATE_SOFTSETUP)
2872 card->data.state = CH_STATE_UP;
2873 card->state = CARD_STATE_UP;
2874 netif_start_queue(dev);
2876 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
2877 napi_enable(&card->napi);
2878 napi_schedule(&card->napi);
2884 static int qeth_l3_open(struct net_device *dev)
2886 struct qeth_card *card = dev->ml_priv;
2888 QETH_CARD_TEXT(card, 5, "qethope_");
2889 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2890 QETH_CARD_TEXT(card, 3, "openREC");
2891 return -ERESTARTSYS;
2893 return __qeth_l3_open(dev);
2896 static int qeth_l3_stop(struct net_device *dev)
2898 struct qeth_card *card = dev->ml_priv;
2900 QETH_CARD_TEXT(card, 4, "qethstop");
2901 netif_tx_disable(dev);
2902 if (card->state == CARD_STATE_UP) {
2903 card->state = CARD_STATE_SOFTSETUP;
2904 napi_disable(&card->napi);
2909 static const struct ethtool_ops qeth_l3_ethtool_ops = {
2910 .get_link = ethtool_op_get_link,
2911 .get_strings = qeth_core_get_strings,
2912 .get_ethtool_stats = qeth_core_get_ethtool_stats,
2913 .get_sset_count = qeth_core_get_sset_count,
2914 .get_drvinfo = qeth_core_get_drvinfo,
2915 .get_link_ksettings = qeth_core_ethtool_get_link_ksettings,
2919 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
2920 * NOARP on the netdevice is no option because it also turns off neighbor
2921 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
2922 * arp resolution but we want the hard header (packet socket will work
2925 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
2927 n->nud_state = NUD_NOARP;
2928 memcpy(n->ha, "FAKELL", 6);
2929 n->output = n->ops->connected_output;
2934 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
2936 if (np->tbl->family == AF_INET)
2937 np->neigh_setup = qeth_l3_neigh_setup_noarp;
2942 static const struct net_device_ops qeth_l3_netdev_ops = {
2943 .ndo_open = qeth_l3_open,
2944 .ndo_stop = qeth_l3_stop,
2945 .ndo_get_stats = qeth_get_stats,
2946 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2947 .ndo_validate_addr = eth_validate_addr,
2948 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
2949 .ndo_do_ioctl = qeth_do_ioctl,
2950 .ndo_change_mtu = qeth_change_mtu,
2951 .ndo_fix_features = qeth_fix_features,
2952 .ndo_set_features = qeth_set_features,
2953 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2954 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
2955 .ndo_tx_timeout = qeth_tx_timeout,
2958 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
2959 .ndo_open = qeth_l3_open,
2960 .ndo_stop = qeth_l3_stop,
2961 .ndo_get_stats = qeth_get_stats,
2962 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2963 .ndo_validate_addr = eth_validate_addr,
2964 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
2965 .ndo_do_ioctl = qeth_do_ioctl,
2966 .ndo_change_mtu = qeth_change_mtu,
2967 .ndo_fix_features = qeth_fix_features,
2968 .ndo_set_features = qeth_set_features,
2969 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2970 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
2971 .ndo_tx_timeout = qeth_tx_timeout,
2972 .ndo_neigh_setup = qeth_l3_neigh_setup,
2975 static int qeth_l3_setup_netdev(struct qeth_card *card)
2979 if (card->info.type == QETH_CARD_TYPE_OSD ||
2980 card->info.type == QETH_CARD_TYPE_OSX) {
2981 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
2982 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
2983 pr_info("qeth_l3: ignoring TR device\n");
2986 card->dev = alloc_etherdev(0);
2989 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
2991 /*IPv6 address autoconfiguration stuff*/
2992 qeth_l3_get_unique_id(card);
2993 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
2994 card->dev->dev_id = card->info.unique_id &
2996 if (!card->info.guestlan) {
2997 card->dev->hw_features = NETIF_F_SG |
2998 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3000 card->dev->vlan_features = NETIF_F_SG |
3001 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3005 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3006 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
3010 card->dev->flags |= IFF_NOARP;
3011 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3012 rc = qeth_l3_iqd_read_initial_mac(card);
3015 if (card->options.hsuid[0])
3016 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
3020 card->dev->ml_priv = card;
3021 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3022 card->dev->mtu = card->info.initial_mtu;
3023 card->dev->min_mtu = 64;
3024 card->dev->max_mtu = ETH_MAX_MTU;
3025 card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
3026 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
3027 NETIF_F_HW_VLAN_CTAG_RX |
3028 NETIF_F_HW_VLAN_CTAG_FILTER;
3029 netif_keep_dst(card->dev);
3030 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
3033 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3034 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
3035 netif_carrier_off(card->dev);
3036 return register_netdev(card->dev);
3039 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3041 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3043 qeth_l3_create_device_attributes(&gdev->dev);
3044 card->options.layer2 = 0;
3045 card->info.hwtrap = 0;
3049 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3051 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3053 qeth_l3_remove_device_attributes(&cgdev->dev);
3055 qeth_set_allowed_threads(card, 0, 1);
3056 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3058 if (cgdev->state == CCWGROUP_ONLINE)
3059 qeth_l3_set_offline(cgdev);
3062 netif_napi_del(&card->napi);
3063 unregister_netdev(card->dev);
3067 qeth_l3_clear_ip_htable(card, 0);
3068 qeth_l3_clear_ipato_list(card);
3072 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3074 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3076 enum qeth_card_states recover_flag;
3078 mutex_lock(&card->discipline_mutex);
3079 mutex_lock(&card->conf_mutex);
3080 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3081 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3083 recover_flag = card->state;
3084 rc = qeth_core_hardsetup_card(card);
3086 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3091 if (!card->dev && qeth_l3_setup_netdev(card)) {
3096 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3097 if (card->info.hwtrap &&
3098 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3099 card->info.hwtrap = 0;
3101 card->info.hwtrap = 0;
3103 card->state = CARD_STATE_HARDSETUP;
3104 memset(&card->rx, 0, sizeof(struct qeth_rx));
3105 qeth_print_status_message(card);
3108 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3110 rc = qeth_l3_setadapter_parms(card);
3112 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3113 if (!card->options.sniffer) {
3114 rc = qeth_l3_start_ipassists(card);
3116 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3119 rc = qeth_l3_setrouting_v4(card);
3121 QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
3122 rc = qeth_l3_setrouting_v6(card);
3124 QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
3126 netif_tx_disable(card->dev);
3128 rc = qeth_init_qdio_queues(card);
3130 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3134 card->state = CARD_STATE_SOFTSETUP;
3136 qeth_set_allowed_threads(card, 0xffffffff, 0);
3137 qeth_l3_recover_ip(card);
3138 if (card->lan_online)
3139 netif_carrier_on(card->dev);
3141 netif_carrier_off(card->dev);
3142 if (recover_flag == CARD_STATE_RECOVER) {
3145 __qeth_l3_open(card->dev);
3147 dev_open(card->dev);
3148 qeth_l3_set_multicast_list(card->dev);
3149 qeth_recover_features(card->dev);
3152 qeth_trace_features(card);
3153 /* let user_space know that device is online */
3154 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3155 mutex_unlock(&card->conf_mutex);
3156 mutex_unlock(&card->discipline_mutex);
3159 qeth_l3_stop_card(card, 0);
3160 ccw_device_set_offline(CARD_DDEV(card));
3161 ccw_device_set_offline(CARD_WDEV(card));
3162 ccw_device_set_offline(CARD_RDEV(card));
3163 qdio_free(CARD_DDEV(card));
3164 if (recover_flag == CARD_STATE_RECOVER)
3165 card->state = CARD_STATE_RECOVER;
3167 card->state = CARD_STATE_DOWN;
3168 mutex_unlock(&card->conf_mutex);
3169 mutex_unlock(&card->discipline_mutex);
3173 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3175 return __qeth_l3_set_online(gdev, 0);
3178 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3181 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3182 int rc = 0, rc2 = 0, rc3 = 0;
3183 enum qeth_card_states recover_flag;
3185 mutex_lock(&card->discipline_mutex);
3186 mutex_lock(&card->conf_mutex);
3187 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3188 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3190 if (card->dev && netif_carrier_ok(card->dev))
3191 netif_carrier_off(card->dev);
3192 recover_flag = card->state;
3193 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3194 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3195 card->info.hwtrap = 1;
3197 qeth_l3_stop_card(card, recovery_mode);
3198 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3200 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3203 rc = ccw_device_set_offline(CARD_DDEV(card));
3204 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3205 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3207 rc = (rc2) ? rc2 : rc3;
3209 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3210 qdio_free(CARD_DDEV(card));
3211 if (recover_flag == CARD_STATE_UP)
3212 card->state = CARD_STATE_RECOVER;
3213 /* let user_space know that device is offline */
3214 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3215 mutex_unlock(&card->conf_mutex);
3216 mutex_unlock(&card->discipline_mutex);
3220 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3222 return __qeth_l3_set_offline(cgdev, 0);
3225 static int qeth_l3_recover(void *ptr)
3227 struct qeth_card *card;
3230 card = (struct qeth_card *) ptr;
3231 QETH_CARD_TEXT(card, 2, "recover1");
3232 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3233 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3235 QETH_CARD_TEXT(card, 2, "recover2");
3236 dev_warn(&card->gdev->dev,
3237 "A recovery process has been started for the device\n");
3238 qeth_set_recovery_task(card);
3239 __qeth_l3_set_offline(card->gdev, 1);
3240 rc = __qeth_l3_set_online(card->gdev, 1);
3242 dev_info(&card->gdev->dev,
3243 "Device successfully recovered!\n");
3245 qeth_close_dev(card);
3246 dev_warn(&card->gdev->dev, "The qeth device driver "
3247 "failed to recover an error on the device\n");
3249 qeth_clear_recovery_task(card);
3250 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3251 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3255 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3257 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3260 netif_device_detach(card->dev);
3261 qeth_set_allowed_threads(card, 0, 1);
3262 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3263 if (gdev->state == CCWGROUP_OFFLINE)
3265 if (card->state == CARD_STATE_UP) {
3266 if (card->info.hwtrap)
3267 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3268 __qeth_l3_set_offline(card->gdev, 1);
3270 __qeth_l3_set_offline(card->gdev, 0);
3274 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3276 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3279 if (gdev->state == CCWGROUP_OFFLINE)
3282 if (card->state == CARD_STATE_RECOVER) {
3283 rc = __qeth_l3_set_online(card->gdev, 1);
3286 dev_close(card->dev);
3290 rc = __qeth_l3_set_online(card->gdev, 0);
3292 qeth_set_allowed_threads(card, 0xffffffff, 0);
3294 netif_device_attach(card->dev);
3296 dev_warn(&card->gdev->dev, "The qeth device driver "
3297 "failed to recover an error on the device\n");
3301 /* Returns zero if the command is successfully "consumed" */
3302 static int qeth_l3_control_event(struct qeth_card *card,
3303 struct qeth_ipa_cmd *cmd)
3308 struct qeth_discipline qeth_l3_discipline = {
3309 .start_poll = qeth_qdio_start_poll,
3310 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3311 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3312 .process_rx_buffer = qeth_l3_process_inbound_buffer,
3313 .recover = qeth_l3_recover,
3314 .setup = qeth_l3_probe_device,
3315 .remove = qeth_l3_remove_device,
3316 .set_online = qeth_l3_set_online,
3317 .set_offline = qeth_l3_set_offline,
3318 .freeze = qeth_l3_pm_suspend,
3319 .thaw = qeth_l3_pm_resume,
3320 .restore = qeth_l3_pm_resume,
3321 .do_ioctl = qeth_l3_do_ioctl,
3322 .control_event_handler = qeth_l3_control_event,
3324 EXPORT_SYMBOL_GPL(qeth_l3_discipline);
3326 static int qeth_l3_ip_event(struct notifier_block *this,
3327 unsigned long event, void *ptr)
3330 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3331 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3332 struct qeth_ipaddr *addr;
3333 struct qeth_card *card;
3335 if (dev_net(dev) != &init_net)
3338 card = qeth_l3_get_card_from_dev(dev);
3341 QETH_CARD_TEXT(card, 3, "ipevent");
3343 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3345 addr->u.a4.addr = be32_to_cpu(ifa->ifa_address);
3346 addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask);
3347 addr->type = QETH_IP_TYPE_NORMAL;
3353 spin_lock_bh(&card->ip_lock);
3354 qeth_l3_add_ip(card, addr);
3355 spin_unlock_bh(&card->ip_lock);
3358 spin_lock_bh(&card->ip_lock);
3359 qeth_l3_delete_ip(card, addr);
3360 spin_unlock_bh(&card->ip_lock);
3368 static struct notifier_block qeth_l3_ip_notifier = {
3373 #ifdef CONFIG_QETH_IPV6
3375 * IPv6 event handler
3377 static int qeth_l3_ip6_event(struct notifier_block *this,
3378 unsigned long event, void *ptr)
3380 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3381 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3382 struct qeth_ipaddr *addr;
3383 struct qeth_card *card;
3385 card = qeth_l3_get_card_from_dev(dev);
3388 QETH_CARD_TEXT(card, 3, "ip6event");
3389 if (!qeth_is_supported(card, IPA_IPV6))
3392 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3394 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3395 addr->u.a6.pfxlen = ifa->prefix_len;
3396 addr->type = QETH_IP_TYPE_NORMAL;
3402 spin_lock_bh(&card->ip_lock);
3403 qeth_l3_add_ip(card, addr);
3404 spin_unlock_bh(&card->ip_lock);
3407 spin_lock_bh(&card->ip_lock);
3408 qeth_l3_delete_ip(card, addr);
3409 spin_unlock_bh(&card->ip_lock);
3417 static struct notifier_block qeth_l3_ip6_notifier = {
3423 static int qeth_l3_register_notifiers(void)
3427 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3428 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3431 #ifdef CONFIG_QETH_IPV6
3432 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3434 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3438 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
3443 static void qeth_l3_unregister_notifiers(void)
3446 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3447 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3448 #ifdef CONFIG_QETH_IPV6
3449 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3450 #endif /* QETH_IPV6 */
3453 static int __init qeth_l3_init(void)
3457 pr_info("register layer 3 discipline\n");
3458 rc = qeth_l3_register_notifiers();
3462 static void __exit qeth_l3_exit(void)
3464 qeth_l3_unregister_notifiers();
3465 pr_info("unregister layer 3 discipline\n");
3468 module_init(qeth_l3_init);
3469 module_exit(qeth_l3_exit);
3470 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3471 MODULE_DESCRIPTION("qeth layer 3 discipline");
3472 MODULE_LICENSE("GPL");