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>
19 #include <linux/mii.h>
21 #include <linux/ipv6.h>
22 #include <linux/inetdevice.h>
23 #include <linux/igmp.h>
24 #include <linux/slab.h>
25 #include <linux/if_vlan.h>
29 #include <net/route.h>
30 #include <net/ip6_fib.h>
31 #include <net/ip6_checksum.h>
32 #include <net/iucv/af_iucv.h>
33 #include <linux/hashtable.h>
38 static int qeth_l3_set_offline(struct ccwgroup_device *);
39 static int qeth_l3_recover(void *);
40 static int qeth_l3_stop(struct net_device *);
41 static void qeth_l3_set_multicast_list(struct net_device *);
42 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
43 static int qeth_l3_register_addr_entry(struct qeth_card *,
44 struct qeth_ipaddr *);
45 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
46 struct qeth_ipaddr *);
47 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
48 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
50 static int qeth_l3_isxdigit(char *buf)
53 if (!isxdigit(*buf++))
59 static void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
61 sprintf(buf, "%pI4", addr);
64 static int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
66 int count = 0, rc = 0;
70 rc = sscanf(buf, "%u.%u.%u.%u%c",
71 &in[0], &in[1], &in[2], &in[3], &c);
72 if (rc != 4 && (rc != 5 || c != '\n'))
74 for (count = 0; count < 4; count++) {
77 addr[count] = in[count];
82 static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
84 sprintf(buf, "%pI6", addr);
87 static int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
89 const char *end, *end_tmp, *start;
92 int num2, cnt, out, found, save_cnt;
93 unsigned short in_tmp[8] = {0, };
95 cnt = out = found = save_cnt = num2 = 0;
100 end = strchr(start, ':');
102 end = buf + strlen(buf);
103 end_tmp = strchr(start, '\n');
110 if ((end - start) > 4)
112 memcpy(num, start, end - start);
113 if (!qeth_l3_isxdigit(num))
115 sscanf(start, "%x", &num2);
117 in_tmp[save_cnt++] = num2;
129 if (cnt + save_cnt > 8)
133 in[cnt--] = in_tmp[--save_cnt];
137 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
140 if (proto == QETH_PROT_IPV4)
141 qeth_l3_ipaddr4_to_string(addr, buf);
142 else if (proto == QETH_PROT_IPV6)
143 qeth_l3_ipaddr6_to_string(addr, buf);
146 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
149 if (proto == QETH_PROT_IPV4)
150 return qeth_l3_string_to_ipaddr4(buf, addr);
151 else if (proto == QETH_PROT_IPV6)
152 return qeth_l3_string_to_ipaddr6(buf, addr);
157 static struct qeth_ipaddr *qeth_l3_find_addr_by_ip(struct qeth_card *card,
158 struct qeth_ipaddr *query)
160 u64 key = qeth_l3_ipaddr_hash(query);
161 struct qeth_ipaddr *addr;
163 if (query->is_multicast) {
164 hash_for_each_possible(card->ip_mc_htable, addr, hnode, key)
165 if (qeth_l3_addr_match_ip(addr, query))
168 hash_for_each_possible(card->ip_htable, addr, hnode, key)
169 if (qeth_l3_addr_match_ip(addr, query))
175 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
180 for (i = 0; i < len; ++i) {
182 for (j = 7; j >= 0; --j) {
183 bits[i*8 + j] = octet & 1;
189 static bool qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
190 struct qeth_ipaddr *addr)
192 struct qeth_ipato_entry *ipatoe;
193 u8 addr_bits[128] = {0, };
194 u8 ipatoe_bits[128] = {0, };
197 if (!card->ipato.enabled)
199 if (addr->type != QETH_IP_TYPE_NORMAL)
202 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
203 (addr->proto == QETH_PROT_IPV4)? 4:16);
204 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
205 if (addr->proto != ipatoe->proto)
207 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
208 (ipatoe->proto == QETH_PROT_IPV4) ?
210 if (addr->proto == QETH_PROT_IPV4)
211 rc = !memcmp(addr_bits, ipatoe_bits,
212 min(32, ipatoe->mask_bits));
214 rc = !memcmp(addr_bits, ipatoe_bits,
215 min(128, ipatoe->mask_bits));
220 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
222 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
228 int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
231 struct qeth_ipaddr *addr;
233 QETH_CARD_TEXT(card, 4, "delip");
235 if (tmp_addr->proto == QETH_PROT_IPV4)
236 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
238 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
239 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
242 addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
243 if (!addr || !qeth_l3_addr_match_all(addr, tmp_addr))
247 if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
249 if (addr->in_progress)
252 if (qeth_card_hw_is_reachable(card))
253 rc = qeth_l3_deregister_addr_entry(card, addr);
255 hash_del(&addr->hnode);
261 int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
264 struct qeth_ipaddr *addr;
267 QETH_CARD_TEXT(card, 4, "addip");
269 if (tmp_addr->proto == QETH_PROT_IPV4)
270 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
272 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
273 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
276 addr = qeth_l3_find_addr_by_ip(card, tmp_addr);
278 if (tmp_addr->type != QETH_IP_TYPE_NORMAL)
280 if (qeth_l3_addr_match_all(addr, tmp_addr)) {
284 qeth_l3_ipaddr_to_string(tmp_addr->proto, (u8 *)&tmp_addr->u,
286 dev_warn(&card->gdev->dev,
287 "Registering IP address %s failed\n", buf);
290 addr = qeth_l3_get_addr_buffer(tmp_addr->proto);
294 memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr));
295 addr->ref_counter = 1;
297 if (qeth_l3_is_addr_covered_by_ipato(card, addr)) {
298 QETH_CARD_TEXT(card, 2, "tkovaddr");
299 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
301 hash_add(card->ip_htable, &addr->hnode,
302 qeth_l3_ipaddr_hash(addr));
304 if (!qeth_card_hw_is_reachable(card)) {
305 addr->disp_flag = QETH_DISP_ADDR_ADD;
309 /* qeth_l3_register_addr_entry can go to sleep
310 * if we add a IPV4 addr. It is caused by the reason
311 * that SETIP ipa cmd starts ARP staff for IPV4 addr.
312 * Thus we should unlock spinlock, and make a protection
313 * using in_progress variable to indicate that there is
314 * an hardware operation with this IPV4 address
316 if (addr->proto == QETH_PROT_IPV4) {
317 addr->in_progress = 1;
318 spin_unlock_bh(&card->ip_lock);
319 rc = qeth_l3_register_addr_entry(card, addr);
320 spin_lock_bh(&card->ip_lock);
321 addr->in_progress = 0;
323 rc = qeth_l3_register_addr_entry(card, addr);
325 if (!rc || (rc == IPA_RC_DUPLICATE_IP_ADDRESS) ||
326 (rc == IPA_RC_LAN_OFFLINE)) {
327 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
328 if (addr->ref_counter < 1) {
329 qeth_l3_deregister_addr_entry(card, addr);
330 hash_del(&addr->hnode);
334 hash_del(&addr->hnode);
342 struct qeth_ipaddr *qeth_l3_get_addr_buffer(
343 enum qeth_prot_versions prot)
345 struct qeth_ipaddr *addr;
347 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
351 addr->type = QETH_IP_TYPE_NORMAL;
352 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
358 static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
360 struct qeth_ipaddr *addr;
361 struct hlist_node *tmp;
364 QETH_CARD_TEXT(card, 4, "clearip");
366 spin_lock_bh(&card->ip_lock);
368 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
370 hash_del(&addr->hnode);
374 addr->disp_flag = QETH_DISP_ADDR_ADD;
377 spin_unlock_bh(&card->ip_lock);
379 spin_lock_bh(&card->mclock);
381 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
382 hash_del(&addr->hnode);
386 spin_unlock_bh(&card->mclock);
390 static void qeth_l3_recover_ip(struct qeth_card *card)
392 struct qeth_ipaddr *addr;
393 struct hlist_node *tmp;
397 QETH_CARD_TEXT(card, 4, "recovrip");
399 spin_lock_bh(&card->ip_lock);
401 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
402 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
403 if (addr->proto == QETH_PROT_IPV4) {
404 addr->in_progress = 1;
405 spin_unlock_bh(&card->ip_lock);
406 rc = qeth_l3_register_addr_entry(card, addr);
407 spin_lock_bh(&card->ip_lock);
408 addr->in_progress = 0;
410 rc = qeth_l3_register_addr_entry(card, addr);
413 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
414 if (addr->ref_counter < 1)
415 qeth_l3_delete_ip(card, addr);
417 hash_del(&addr->hnode);
423 spin_unlock_bh(&card->ip_lock);
427 static int qeth_l3_send_setdelmc(struct qeth_card *card,
428 struct qeth_ipaddr *addr, int ipacmd)
431 struct qeth_cmd_buffer *iob;
432 struct qeth_ipa_cmd *cmd;
434 QETH_CARD_TEXT(card, 4, "setdelmc");
436 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
439 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
440 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
441 if (addr->proto == QETH_PROT_IPV6)
442 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
443 sizeof(struct in6_addr));
445 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
447 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
452 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
455 for (i = 0; i < 16; i++) {
460 netmask[i] = (u8)(0xFF00 >> j);
466 static int qeth_l3_send_setdelip(struct qeth_card *card,
467 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
470 struct qeth_cmd_buffer *iob;
471 struct qeth_ipa_cmd *cmd;
474 QETH_CARD_TEXT(card, 4, "setdelip");
475 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
477 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
480 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
481 if (addr->proto == QETH_PROT_IPV6) {
482 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
483 sizeof(struct in6_addr));
484 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
485 memcpy(cmd->data.setdelip6.mask, netmask,
486 sizeof(struct in6_addr));
487 cmd->data.setdelip6.flags = flags;
489 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
490 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
491 cmd->data.setdelip4.flags = flags;
494 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
499 static int qeth_l3_send_setrouting(struct qeth_card *card,
500 enum qeth_routing_types type, enum qeth_prot_versions prot)
503 struct qeth_ipa_cmd *cmd;
504 struct qeth_cmd_buffer *iob;
506 QETH_CARD_TEXT(card, 4, "setroutg");
507 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
510 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
511 cmd->data.setrtg.type = (type);
512 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
517 static int qeth_l3_correct_routing_type(struct qeth_card *card,
518 enum qeth_routing_types *type, enum qeth_prot_versions prot)
520 if (card->info.type == QETH_CARD_TYPE_IQD) {
523 case PRIMARY_CONNECTOR:
524 case SECONDARY_CONNECTOR:
525 case MULTICAST_ROUTER:
534 case SECONDARY_ROUTER:
536 case MULTICAST_ROUTER:
537 if (qeth_is_ipafunc_supported(card, prot,
549 int qeth_l3_setrouting_v4(struct qeth_card *card)
553 QETH_CARD_TEXT(card, 3, "setrtg4");
555 rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
560 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
563 card->options.route4.type = NO_ROUTER;
564 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
565 " on %s. Type set to 'no router'.\n", rc,
566 QETH_CARD_IFNAME(card));
571 int qeth_l3_setrouting_v6(struct qeth_card *card)
575 QETH_CARD_TEXT(card, 3, "setrtg6");
576 #ifdef CONFIG_QETH_IPV6
578 if (!qeth_is_supported(card, IPA_IPV6))
580 rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
585 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
588 card->options.route6.type = NO_ROUTER;
589 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
590 " on %s. Type set to 'no router'.\n", rc,
591 QETH_CARD_IFNAME(card));
598 * IP address takeover related functions
602 * qeth_l3_update_ipato() - Update 'takeover' property, for all NORMAL IPs.
604 * Caller must hold ip_lock.
606 void qeth_l3_update_ipato(struct qeth_card *card)
608 struct qeth_ipaddr *addr;
611 hash_for_each(card->ip_htable, i, addr, hnode) {
612 if (addr->type != QETH_IP_TYPE_NORMAL)
614 if (qeth_l3_is_addr_covered_by_ipato(card, addr))
615 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
617 addr->set_flags &= ~QETH_IPA_SETIP_TAKEOVER_FLAG;
621 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
623 struct qeth_ipato_entry *ipatoe, *tmp;
625 spin_lock_bh(&card->ip_lock);
627 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
628 list_del(&ipatoe->entry);
632 qeth_l3_update_ipato(card);
633 spin_unlock_bh(&card->ip_lock);
636 int qeth_l3_add_ipato_entry(struct qeth_card *card,
637 struct qeth_ipato_entry *new)
639 struct qeth_ipato_entry *ipatoe;
642 QETH_CARD_TEXT(card, 2, "addipato");
644 spin_lock_bh(&card->ip_lock);
646 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
647 if (ipatoe->proto != new->proto)
649 if (!memcmp(ipatoe->addr, new->addr,
650 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
651 (ipatoe->mask_bits == new->mask_bits)) {
658 list_add_tail(&new->entry, &card->ipato.entries);
659 qeth_l3_update_ipato(card);
662 spin_unlock_bh(&card->ip_lock);
667 void qeth_l3_del_ipato_entry(struct qeth_card *card,
668 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
670 struct qeth_ipato_entry *ipatoe, *tmp;
672 QETH_CARD_TEXT(card, 2, "delipato");
674 spin_lock_bh(&card->ip_lock);
676 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
677 if (ipatoe->proto != proto)
679 if (!memcmp(ipatoe->addr, addr,
680 (proto == QETH_PROT_IPV4)? 4:16) &&
681 (ipatoe->mask_bits == mask_bits)) {
682 list_del(&ipatoe->entry);
683 qeth_l3_update_ipato(card);
688 spin_unlock_bh(&card->ip_lock);
692 * VIPA related functions
694 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
697 struct qeth_ipaddr *ipaddr;
700 ipaddr = qeth_l3_get_addr_buffer(proto);
702 if (proto == QETH_PROT_IPV4) {
703 QETH_CARD_TEXT(card, 2, "addvipa4");
704 memcpy(&ipaddr->u.a4.addr, addr, 4);
705 ipaddr->u.a4.mask = 0;
706 } else if (proto == QETH_PROT_IPV6) {
707 QETH_CARD_TEXT(card, 2, "addvipa6");
708 memcpy(&ipaddr->u.a6.addr, addr, 16);
709 ipaddr->u.a6.pfxlen = 0;
711 ipaddr->type = QETH_IP_TYPE_VIPA;
712 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
713 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
717 spin_lock_bh(&card->ip_lock);
718 rc = qeth_l3_add_ip(card, ipaddr);
719 spin_unlock_bh(&card->ip_lock);
726 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
729 struct qeth_ipaddr *ipaddr;
731 ipaddr = qeth_l3_get_addr_buffer(proto);
733 if (proto == QETH_PROT_IPV4) {
734 QETH_CARD_TEXT(card, 2, "delvipa4");
735 memcpy(&ipaddr->u.a4.addr, addr, 4);
736 ipaddr->u.a4.mask = 0;
737 } else if (proto == QETH_PROT_IPV6) {
738 QETH_CARD_TEXT(card, 2, "delvipa6");
739 memcpy(&ipaddr->u.a6.addr, addr, 16);
740 ipaddr->u.a6.pfxlen = 0;
742 ipaddr->type = QETH_IP_TYPE_VIPA;
746 spin_lock_bh(&card->ip_lock);
747 qeth_l3_delete_ip(card, ipaddr);
748 spin_unlock_bh(&card->ip_lock);
754 * proxy ARP related functions
756 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
759 struct qeth_ipaddr *ipaddr;
762 ipaddr = qeth_l3_get_addr_buffer(proto);
764 if (proto == QETH_PROT_IPV4) {
765 QETH_CARD_TEXT(card, 2, "addrxip4");
766 memcpy(&ipaddr->u.a4.addr, addr, 4);
767 ipaddr->u.a4.mask = 0;
768 } else if (proto == QETH_PROT_IPV6) {
769 QETH_CARD_TEXT(card, 2, "addrxip6");
770 memcpy(&ipaddr->u.a6.addr, addr, 16);
771 ipaddr->u.a6.pfxlen = 0;
774 ipaddr->type = QETH_IP_TYPE_RXIP;
775 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
776 ipaddr->del_flags = 0;
780 spin_lock_bh(&card->ip_lock);
781 rc = qeth_l3_add_ip(card, ipaddr);
782 spin_unlock_bh(&card->ip_lock);
789 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
792 struct qeth_ipaddr *ipaddr;
794 ipaddr = qeth_l3_get_addr_buffer(proto);
796 if (proto == QETH_PROT_IPV4) {
797 QETH_CARD_TEXT(card, 2, "addrxip4");
798 memcpy(&ipaddr->u.a4.addr, addr, 4);
799 ipaddr->u.a4.mask = 0;
800 } else if (proto == QETH_PROT_IPV6) {
801 QETH_CARD_TEXT(card, 2, "addrxip6");
802 memcpy(&ipaddr->u.a6.addr, addr, 16);
803 ipaddr->u.a6.pfxlen = 0;
805 ipaddr->type = QETH_IP_TYPE_RXIP;
809 spin_lock_bh(&card->ip_lock);
810 qeth_l3_delete_ip(card, ipaddr);
811 spin_unlock_bh(&card->ip_lock);
816 static int qeth_l3_register_addr_entry(struct qeth_card *card,
817 struct qeth_ipaddr *addr)
823 if (card->options.sniffer)
826 if (addr->proto == QETH_PROT_IPV4) {
827 QETH_CARD_TEXT(card, 2, "setaddr4");
828 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
829 } else if (addr->proto == QETH_PROT_IPV6) {
830 QETH_CARD_TEXT(card, 2, "setaddr6");
831 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
832 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
834 QETH_CARD_TEXT(card, 2, "setaddr?");
835 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
838 if (addr->is_multicast)
839 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
841 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
844 QETH_CARD_TEXT(card, 2, "failed");
845 } while ((--cnt > 0) && rc);
847 QETH_CARD_TEXT(card, 2, "FAILED");
848 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
849 dev_warn(&card->gdev->dev,
850 "Registering IP address %s failed\n", buf);
855 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
856 struct qeth_ipaddr *addr)
860 if (card->options.sniffer)
863 if (addr->proto == QETH_PROT_IPV4) {
864 QETH_CARD_TEXT(card, 2, "deladdr4");
865 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
866 } else if (addr->proto == QETH_PROT_IPV6) {
867 QETH_CARD_TEXT(card, 2, "deladdr6");
868 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
869 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
871 QETH_CARD_TEXT(card, 2, "deladdr?");
872 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
874 if (addr->is_multicast)
875 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
877 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
880 QETH_CARD_TEXT(card, 2, "failed");
885 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
887 if (cast_type == RTN_MULTICAST)
888 return QETH_CAST_MULTICAST;
889 if (cast_type == RTN_BROADCAST)
890 return QETH_CAST_BROADCAST;
891 return QETH_CAST_UNICAST;
894 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
896 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
897 if (cast_type == RTN_MULTICAST)
898 return ct | QETH_CAST_MULTICAST;
899 if (cast_type == RTN_ANYCAST)
900 return ct | QETH_CAST_ANYCAST;
901 if (cast_type == RTN_BROADCAST)
902 return ct | QETH_CAST_BROADCAST;
903 return ct | QETH_CAST_UNICAST;
906 static int qeth_l3_setadapter_parms(struct qeth_card *card)
910 QETH_DBF_TEXT(SETUP, 2, "setadprm");
912 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
913 dev_info(&card->gdev->dev,
914 "set adapter parameters not supported.\n");
915 QETH_DBF_TEXT(SETUP, 2, " notsupp");
918 rc = qeth_query_setadapterparms(card);
920 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
921 "0x%x\n", dev_name(&card->gdev->dev), rc);
924 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
925 rc = qeth_setadpparms_change_macaddr(card);
927 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
928 " address failed\n");
934 #ifdef CONFIG_QETH_IPV6
935 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
936 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
939 struct qeth_cmd_buffer *iob;
941 QETH_CARD_TEXT(card, 4, "simassp6");
942 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
946 rc = qeth_send_setassparms(card, iob, 0, 0,
947 qeth_setassparms_cb, NULL);
952 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
956 QETH_CARD_TEXT(card, 3, "ipaarp");
958 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
959 dev_info(&card->gdev->dev,
960 "ARP processing not supported on %s!\n",
961 QETH_CARD_IFNAME(card));
964 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
965 IPA_CMD_ASS_START, 0);
967 dev_warn(&card->gdev->dev,
968 "Starting ARP processing support for %s failed\n",
969 QETH_CARD_IFNAME(card));
974 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
978 QETH_CARD_TEXT(card, 3, "ipaipfrg");
980 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
981 dev_info(&card->gdev->dev,
982 "Hardware IP fragmentation not supported on %s\n",
983 QETH_CARD_IFNAME(card));
987 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
988 IPA_CMD_ASS_START, 0);
990 dev_warn(&card->gdev->dev,
991 "Starting IP fragmentation support for %s failed\n",
992 QETH_CARD_IFNAME(card));
994 dev_info(&card->gdev->dev,
995 "Hardware IP fragmentation enabled \n");
999 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1003 QETH_CARD_TEXT(card, 3, "stsrcmac");
1005 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1006 dev_info(&card->gdev->dev,
1007 "Inbound source MAC-address not supported on %s\n",
1008 QETH_CARD_IFNAME(card));
1012 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
1013 IPA_CMD_ASS_START, 0);
1015 dev_warn(&card->gdev->dev,
1016 "Starting source MAC-address support for %s failed\n",
1017 QETH_CARD_IFNAME(card));
1021 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1025 QETH_CARD_TEXT(card, 3, "strtvlan");
1027 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1028 dev_info(&card->gdev->dev,
1029 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1033 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
1034 IPA_CMD_ASS_START, 0);
1036 dev_warn(&card->gdev->dev,
1037 "Starting VLAN support for %s failed\n",
1038 QETH_CARD_IFNAME(card));
1040 dev_info(&card->gdev->dev, "VLAN enabled\n");
1045 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1049 QETH_CARD_TEXT(card, 3, "stmcast");
1051 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1052 dev_info(&card->gdev->dev,
1053 "Multicast not supported on %s\n",
1054 QETH_CARD_IFNAME(card));
1058 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
1059 IPA_CMD_ASS_START, 0);
1061 dev_warn(&card->gdev->dev,
1062 "Starting multicast support for %s failed\n",
1063 QETH_CARD_IFNAME(card));
1065 dev_info(&card->gdev->dev, "Multicast enabled\n");
1066 card->dev->flags |= IFF_MULTICAST;
1071 #ifdef CONFIG_QETH_IPV6
1072 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1076 QETH_CARD_TEXT(card, 3, "softipv6");
1078 if (card->info.type == QETH_CARD_TYPE_IQD)
1081 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1083 dev_err(&card->gdev->dev,
1084 "Activating IPv6 support for %s failed\n",
1085 QETH_CARD_IFNAME(card));
1088 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
1089 IPA_CMD_ASS_START, 3);
1091 dev_err(&card->gdev->dev,
1092 "Activating IPv6 support for %s failed\n",
1093 QETH_CARD_IFNAME(card));
1096 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1099 dev_err(&card->gdev->dev,
1100 "Activating IPv6 support for %s failed\n",
1101 QETH_CARD_IFNAME(card));
1104 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1107 dev_warn(&card->gdev->dev,
1108 "Enabling the passthrough mode for %s failed\n",
1109 QETH_CARD_IFNAME(card));
1113 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1118 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1122 QETH_CARD_TEXT(card, 3, "strtipv6");
1124 if (!qeth_is_supported(card, IPA_IPV6)) {
1125 dev_info(&card->gdev->dev,
1126 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1129 #ifdef CONFIG_QETH_IPV6
1130 rc = qeth_l3_softsetup_ipv6(card);
1135 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1139 QETH_CARD_TEXT(card, 3, "stbrdcst");
1140 card->info.broadcast_capable = 0;
1141 if (!qeth_is_supported(card, IPA_FILTERING)) {
1142 dev_info(&card->gdev->dev,
1143 "Broadcast not supported on %s\n",
1144 QETH_CARD_IFNAME(card));
1148 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1149 IPA_CMD_ASS_START, 0);
1151 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1152 "%s failed\n", QETH_CARD_IFNAME(card));
1156 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1157 IPA_CMD_ASS_CONFIGURE, 1);
1159 dev_warn(&card->gdev->dev,
1160 "Setting up broadcast filtering for %s failed\n",
1161 QETH_CARD_IFNAME(card));
1164 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1165 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1166 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1167 IPA_CMD_ASS_ENABLE, 1);
1169 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1170 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1173 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1175 if (card->info.broadcast_capable)
1176 card->dev->flags |= IFF_BROADCAST;
1178 card->dev->flags &= ~IFF_BROADCAST;
1182 static int qeth_l3_start_ipassists(struct qeth_card *card)
1184 QETH_CARD_TEXT(card, 3, "strtipas");
1186 if (qeth_set_access_ctrl_online(card, 0))
1188 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1189 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1190 qeth_l3_start_ipa_source_mac(card); /* go on*/
1191 qeth_l3_start_ipa_vlan(card); /* go on*/
1192 qeth_l3_start_ipa_multicast(card); /* go on*/
1193 qeth_l3_start_ipa_ipv6(card); /* go on*/
1194 qeth_l3_start_ipa_broadcast(card); /* go on*/
1198 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1199 struct qeth_reply *reply, unsigned long data)
1201 struct qeth_ipa_cmd *cmd;
1203 cmd = (struct qeth_ipa_cmd *) data;
1204 if (cmd->hdr.return_code == 0)
1205 memcpy(card->dev->dev_addr,
1206 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1208 eth_random_addr(card->dev->dev_addr);
1213 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1216 struct qeth_cmd_buffer *iob;
1217 struct qeth_ipa_cmd *cmd;
1219 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1221 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1225 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1226 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1227 card->info.unique_id;
1229 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1234 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1235 struct qeth_reply *reply, unsigned long data)
1237 struct qeth_ipa_cmd *cmd;
1239 cmd = (struct qeth_ipa_cmd *) data;
1240 if (cmd->hdr.return_code == 0)
1241 card->info.unique_id = *((__u16 *)
1242 &cmd->data.create_destroy_addr.unique_id[6]);
1244 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1245 UNIQUE_ID_NOT_BY_CARD;
1246 dev_warn(&card->gdev->dev, "The network adapter failed to "
1247 "generate a unique ID\n");
1252 static int qeth_l3_get_unique_id(struct qeth_card *card)
1255 struct qeth_cmd_buffer *iob;
1256 struct qeth_ipa_cmd *cmd;
1258 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1260 if (!qeth_is_supported(card, IPA_IPV6)) {
1261 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1262 UNIQUE_ID_NOT_BY_CARD;
1266 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1270 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1271 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1272 card->info.unique_id;
1274 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1279 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1282 struct qeth_ipa_cmd *cmd;
1285 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1287 cmd = (struct qeth_ipa_cmd *)data;
1288 rc = cmd->hdr.return_code;
1290 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1291 switch (cmd->data.diagass.action) {
1292 case QETH_DIAGS_CMD_TRACE_QUERY:
1294 case QETH_DIAGS_CMD_TRACE_DISABLE:
1297 case IPA_RC_INVALID_SUBCMD:
1298 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1299 dev_info(&card->gdev->dev, "The HiperSockets network "
1300 "traffic analyzer is deactivated\n");
1306 case QETH_DIAGS_CMD_TRACE_ENABLE:
1309 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1310 dev_info(&card->gdev->dev, "The HiperSockets network "
1311 "traffic analyzer is activated\n");
1313 case IPA_RC_HARDWARE_AUTH_ERROR:
1314 dev_warn(&card->gdev->dev, "The device is not "
1315 "authorized to run as a HiperSockets network "
1316 "traffic analyzer\n");
1318 case IPA_RC_TRACE_ALREADY_ACTIVE:
1319 dev_warn(&card->gdev->dev, "A HiperSockets "
1320 "network traffic analyzer is already "
1321 "active in the HiperSockets LAN\n");
1328 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1329 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1336 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1338 struct qeth_cmd_buffer *iob;
1339 struct qeth_ipa_cmd *cmd;
1341 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1343 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1346 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1347 cmd->data.diagass.subcmd_len = 16;
1348 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1349 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1350 cmd->data.diagass.action = diags_cmd;
1351 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1354 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac)
1356 ip_eth_mc_map(ipm, mac);
1359 static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card *card)
1361 struct qeth_ipaddr *addr;
1364 hash_for_each(card->ip_mc_htable, i, addr, hnode)
1365 addr->disp_flag = QETH_DISP_ADDR_DELETE;
1369 static void qeth_l3_add_all_new_mc(struct qeth_card *card)
1371 struct qeth_ipaddr *addr;
1372 struct hlist_node *tmp;
1376 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1377 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
1378 rc = qeth_l3_register_addr_entry(card, addr);
1379 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
1380 addr->ref_counter = 1;
1382 hash_del(&addr->hnode);
1390 static void qeth_l3_delete_nonused_mc(struct qeth_card *card)
1392 struct qeth_ipaddr *addr;
1393 struct hlist_node *tmp;
1397 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1398 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
1399 rc = qeth_l3_deregister_addr_entry(card, addr);
1400 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) {
1401 hash_del(&addr->hnode);
1411 qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
1413 struct ip_mc_list *im4;
1414 struct qeth_ipaddr *tmp, *ipm;
1415 char buf[MAX_ADDR_LEN];
1417 QETH_CARD_TEXT(card, 4, "addmc");
1419 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1423 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1424 im4 = rcu_dereference(im4->next_rcu)) {
1425 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf);
1427 tmp->u.a4.addr = im4->multiaddr;
1428 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1429 tmp->is_multicast = 1;
1431 ipm = qeth_l3_find_addr_by_ip(card, tmp);
1433 /* for mcast, by-IP match means full match */
1434 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1436 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1439 memcpy(ipm->mac, buf, sizeof(tmp->mac));
1440 ipm->u.a4.addr = im4->multiaddr;
1441 ipm->is_multicast = 1;
1442 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1443 hash_add(card->ip_mc_htable,
1444 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1451 /* called with rcu_read_lock */
1452 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1454 struct in_device *in_dev;
1457 QETH_CARD_TEXT(card, 4, "addmcvl");
1459 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1462 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1463 struct net_device *netdev;
1465 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1467 if (netdev == NULL ||
1468 !(netdev->flags & IFF_UP))
1470 in_dev = __in_dev_get_rcu(netdev);
1473 qeth_l3_add_mc_to_hash(card, in_dev);
1477 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1479 struct in_device *in4_dev;
1481 QETH_CARD_TEXT(card, 4, "chkmcv4");
1484 in4_dev = __in_dev_get_rcu(card->dev);
1485 if (in4_dev == NULL)
1487 qeth_l3_add_mc_to_hash(card, in4_dev);
1488 qeth_l3_add_vlan_mc(card);
1493 #ifdef CONFIG_QETH_IPV6
1495 qeth_l3_add_mc6_to_hash(struct qeth_card *card, struct inet6_dev *in6_dev)
1497 struct qeth_ipaddr *ipm;
1498 struct ifmcaddr6 *im6;
1499 struct qeth_ipaddr *tmp;
1500 char buf[MAX_ADDR_LEN];
1502 QETH_CARD_TEXT(card, 4, "addmc6");
1504 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1508 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1509 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1511 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1512 memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
1513 sizeof(struct in6_addr));
1514 tmp->is_multicast = 1;
1516 ipm = qeth_l3_find_addr_by_ip(card, tmp);
1518 /* for mcast, by-IP match means full match */
1519 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1523 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1527 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1528 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1529 sizeof(struct in6_addr));
1530 ipm->is_multicast = 1;
1531 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1532 hash_add(card->ip_mc_htable,
1533 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1539 /* called with rcu_read_lock */
1540 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1542 struct inet6_dev *in_dev;
1545 QETH_CARD_TEXT(card, 4, "admc6vl");
1547 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1550 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1551 struct net_device *netdev;
1553 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1555 if (netdev == NULL ||
1556 !(netdev->flags & IFF_UP))
1558 in_dev = in6_dev_get(netdev);
1561 read_lock_bh(&in_dev->lock);
1562 qeth_l3_add_mc6_to_hash(card, in_dev);
1563 read_unlock_bh(&in_dev->lock);
1564 in6_dev_put(in_dev);
1568 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1570 struct inet6_dev *in6_dev;
1572 QETH_CARD_TEXT(card, 4, "chkmcv6");
1574 if (!qeth_is_supported(card, IPA_IPV6))
1576 in6_dev = in6_dev_get(card->dev);
1581 read_lock_bh(&in6_dev->lock);
1582 qeth_l3_add_mc6_to_hash(card, in6_dev);
1583 qeth_l3_add_vlan_mc6(card);
1584 read_unlock_bh(&in6_dev->lock);
1586 in6_dev_put(in6_dev);
1588 #endif /* CONFIG_QETH_IPV6 */
1590 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1593 struct in_device *in_dev;
1594 struct in_ifaddr *ifa;
1595 struct qeth_ipaddr *addr;
1596 struct net_device *netdev;
1598 QETH_CARD_TEXT(card, 4, "frvaddr4");
1600 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1603 in_dev = in_dev_get(netdev);
1607 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1611 spin_lock_bh(&card->ip_lock);
1613 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1614 addr->u.a4.addr = ifa->ifa_address;
1615 addr->u.a4.mask = ifa->ifa_mask;
1616 addr->type = QETH_IP_TYPE_NORMAL;
1617 qeth_l3_delete_ip(card, addr);
1620 spin_unlock_bh(&card->ip_lock);
1627 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1630 #ifdef CONFIG_QETH_IPV6
1631 struct inet6_dev *in6_dev;
1632 struct inet6_ifaddr *ifa;
1633 struct qeth_ipaddr *addr;
1634 struct net_device *netdev;
1636 QETH_CARD_TEXT(card, 4, "frvaddr6");
1638 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1642 in6_dev = in6_dev_get(netdev);
1646 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1650 spin_lock_bh(&card->ip_lock);
1652 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1653 memcpy(&addr->u.a6.addr, &ifa->addr,
1654 sizeof(struct in6_addr));
1655 addr->u.a6.pfxlen = ifa->prefix_len;
1656 addr->type = QETH_IP_TYPE_NORMAL;
1657 qeth_l3_delete_ip(card, addr);
1660 spin_unlock_bh(&card->ip_lock);
1664 in6_dev_put(in6_dev);
1665 #endif /* CONFIG_QETH_IPV6 */
1668 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1672 qeth_l3_free_vlan_addresses4(card, vid);
1673 qeth_l3_free_vlan_addresses6(card, vid);
1677 static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1678 __be16 proto, u16 vid)
1680 struct qeth_card *card = dev->ml_priv;
1682 set_bit(vid, card->active_vlans);
1686 static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1687 __be16 proto, u16 vid)
1689 struct qeth_card *card = dev->ml_priv;
1691 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1693 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1694 QETH_CARD_TEXT(card, 3, "kidREC");
1697 /* unregister IP addresses of vlan device */
1698 qeth_l3_free_vlan_addresses(card, vid);
1699 clear_bit(vid, card->active_vlans);
1700 qeth_l3_set_multicast_list(card->dev);
1704 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1705 struct sk_buff *skb, struct qeth_hdr *hdr,
1706 unsigned short *vlan_id)
1709 struct iphdr *ip_hdr;
1710 unsigned char tg_addr[MAX_ADDR_LEN];
1713 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1714 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1716 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1717 case QETH_CAST_MULTICAST:
1719 #ifdef CONFIG_QETH_IPV6
1720 case __constant_htons(ETH_P_IPV6):
1721 ndisc_mc_map((struct in6_addr *)
1723 tg_addr, card->dev, 0);
1726 case __constant_htons(ETH_P_IP):
1727 ip_hdr = (struct iphdr *)skb->data;
1728 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1731 memcpy(tg_addr, card->dev->broadcast,
1732 card->dev->addr_len);
1734 card->stats.multicast++;
1735 skb->pkt_type = PACKET_MULTICAST;
1737 case QETH_CAST_BROADCAST:
1738 memcpy(tg_addr, card->dev->broadcast,
1739 card->dev->addr_len);
1740 card->stats.multicast++;
1741 skb->pkt_type = PACKET_BROADCAST;
1743 case QETH_CAST_UNICAST:
1744 case QETH_CAST_ANYCAST:
1745 case QETH_CAST_NOCAST:
1747 if (card->options.sniffer)
1748 skb->pkt_type = PACKET_OTHERHOST;
1750 skb->pkt_type = PACKET_HOST;
1751 memcpy(tg_addr, card->dev->dev_addr,
1752 card->dev->addr_len);
1754 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1755 card->dev->header_ops->create(skb, card->dev, prot,
1756 tg_addr, &hdr->hdr.l3.dest_addr[2],
1757 card->dev->addr_len);
1759 card->dev->header_ops->create(skb, card->dev, prot,
1760 tg_addr, "FAKELL", card->dev->addr_len);
1763 skb->protocol = eth_type_trans(skb, card->dev);
1765 if (hdr->hdr.l3.ext_flags &
1766 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1767 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
1768 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1772 if (card->dev->features & NETIF_F_RXCSUM) {
1773 if ((hdr->hdr.l3.ext_flags &
1774 (QETH_HDR_EXT_CSUM_HDR_REQ |
1775 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1776 (QETH_HDR_EXT_CSUM_HDR_REQ |
1777 QETH_HDR_EXT_CSUM_TRANSP_REQ))
1778 skb->ip_summed = CHECKSUM_UNNECESSARY;
1780 skb->ip_summed = CHECKSUM_NONE;
1782 skb->ip_summed = CHECKSUM_NONE;
1786 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1787 int budget, int *done)
1790 struct sk_buff *skb;
1791 struct qeth_hdr *hdr;
1798 WARN_ON_ONCE(!budget);
1800 skb = qeth_core_get_next_skb(card,
1801 &card->qdio.in_q->bufs[card->rx.b_index],
1802 &card->rx.b_element, &card->rx.e_offset, &hdr);
1807 skb->dev = card->dev;
1808 switch (hdr->hdr.l3.id) {
1809 case QETH_HEADER_TYPE_LAYER3:
1810 magic = *(__u16 *)skb->data;
1811 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1812 (magic == ETH_P_AF_IUCV)) {
1813 skb->protocol = ETH_P_AF_IUCV;
1814 skb->pkt_type = PACKET_HOST;
1815 skb->mac_header = NET_SKB_PAD;
1816 skb->dev = card->dev;
1818 card->dev->header_ops->create(skb, card->dev, 0,
1819 card->dev->dev_addr, "FAKELL",
1820 card->dev->addr_len);
1821 netif_receive_skb(skb);
1823 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
1826 if (is_vlan && !card->options.sniffer)
1827 __vlan_hwaccel_put_tag(skb,
1828 htons(ETH_P_8021Q), vlan_tag);
1829 napi_gro_receive(&card->napi, skb);
1832 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1833 skb->pkt_type = PACKET_HOST;
1834 skb->protocol = eth_type_trans(skb, skb->dev);
1836 netif_receive_skb(skb);
1839 dev_kfree_skb_any(skb);
1840 QETH_CARD_TEXT(card, 3, "inbunkno");
1841 QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr));
1846 card->stats.rx_packets++;
1847 card->stats.rx_bytes += len;
1852 static int qeth_l3_poll(struct napi_struct *napi, int budget)
1854 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
1856 struct qeth_qdio_buffer *buffer;
1858 int new_budget = budget;
1860 if (card->options.performance_stats) {
1861 card->perf_stats.inbound_cnt++;
1862 card->perf_stats.inbound_start_time = qeth_get_micros();
1866 if (!card->rx.b_count) {
1867 card->rx.qdio_err = 0;
1868 card->rx.b_count = qdio_get_next_buffers(
1869 card->data.ccwdev, 0, &card->rx.b_index,
1870 &card->rx.qdio_err);
1871 if (card->rx.b_count <= 0) {
1872 card->rx.b_count = 0;
1875 card->rx.b_element =
1876 &card->qdio.in_q->bufs[card->rx.b_index]
1877 .buffer->element[0];
1878 card->rx.e_offset = 0;
1881 while (card->rx.b_count) {
1882 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
1883 if (!(card->rx.qdio_err &&
1884 qeth_check_qdio_errors(card, buffer->buffer,
1885 card->rx.qdio_err, "qinerr")))
1886 work_done += qeth_l3_process_inbound_buffer(
1887 card, new_budget, &done);
1892 if (card->options.performance_stats)
1893 card->perf_stats.bufs_rec++;
1894 qeth_put_buffer_pool_entry(card,
1895 buffer->pool_entry);
1896 qeth_queue_input_buffer(card, card->rx.b_index);
1898 if (card->rx.b_count) {
1900 (card->rx.b_index + 1) %
1901 QDIO_MAX_BUFFERS_PER_Q;
1902 card->rx.b_element =
1904 ->bufs[card->rx.b_index]
1905 .buffer->element[0];
1906 card->rx.e_offset = 0;
1910 if (work_done >= budget)
1913 new_budget = budget - work_done;
1917 napi_complete(napi);
1918 if (qdio_start_irq(card->data.ccwdev, 0))
1919 napi_schedule(&card->napi);
1921 if (card->options.performance_stats)
1922 card->perf_stats.inbound_time += qeth_get_micros() -
1923 card->perf_stats.inbound_start_time;
1927 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1928 struct qeth_card *card)
1933 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1934 struct net_device *netdev;
1937 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1940 if (netdev == dev) {
1941 rc = QETH_VLAN_CARD;
1946 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
1952 static int qeth_l3_verify_dev(struct net_device *dev)
1954 struct qeth_card *card;
1956 unsigned long flags;
1958 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
1959 list_for_each_entry(card, &qeth_core_card_list.list, list) {
1960 if (card->dev == dev) {
1961 rc = QETH_REAL_CARD;
1964 rc = qeth_l3_verify_vlan_dev(dev, card);
1968 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
1973 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
1975 struct qeth_card *card = NULL;
1978 rc = qeth_l3_verify_dev(dev);
1979 if (rc == QETH_REAL_CARD)
1980 card = dev->ml_priv;
1981 else if (rc == QETH_VLAN_CARD)
1982 card = vlan_dev_real_dev(dev)->ml_priv;
1983 if (card && card->options.layer2)
1986 QETH_CARD_TEXT_(card, 4, "%d", rc);
1990 static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
1992 QETH_DBF_TEXT(SETUP, 2, "stopcard");
1993 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1995 qeth_set_allowed_threads(card, 0, 1);
1996 if (card->options.sniffer &&
1997 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
1998 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
1999 if (card->read.state == CH_STATE_UP &&
2000 card->write.state == CH_STATE_UP &&
2001 (card->state == CARD_STATE_UP)) {
2003 qeth_l3_stop(card->dev);
2006 dev_close(card->dev);
2009 card->state = CARD_STATE_SOFTSETUP;
2011 if (card->state == CARD_STATE_SOFTSETUP) {
2012 qeth_l3_clear_ip_htable(card, 1);
2013 qeth_clear_ipacmd_list(card);
2014 card->state = CARD_STATE_HARDSETUP;
2016 if (card->state == CARD_STATE_HARDSETUP) {
2017 qeth_qdio_clear_card(card, 0);
2018 qeth_clear_qdio_buffers(card);
2019 qeth_clear_working_pool_list(card);
2020 card->state = CARD_STATE_DOWN;
2022 if (card->state == CARD_STATE_DOWN) {
2023 qeth_clear_cmd_buffers(&card->read);
2024 qeth_clear_cmd_buffers(&card->write);
2029 * test for and Switch promiscuous mode (on or off)
2030 * either for guestlan or HiperSocket Sniffer
2033 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2035 struct net_device *dev = card->dev;
2037 if (((dev->flags & IFF_PROMISC) &&
2038 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2039 (!(dev->flags & IFF_PROMISC) &&
2040 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2043 if (card->info.guestlan) { /* Guestlan trace */
2044 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2045 qeth_setadp_promisc_mode(card);
2046 } else if (card->options.sniffer && /* HiperSockets trace */
2047 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2048 if (dev->flags & IFF_PROMISC) {
2049 QETH_CARD_TEXT(card, 3, "+promisc");
2050 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2052 QETH_CARD_TEXT(card, 3, "-promisc");
2053 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2058 static void qeth_l3_set_multicast_list(struct net_device *dev)
2060 struct qeth_card *card = dev->ml_priv;
2062 QETH_CARD_TEXT(card, 3, "setmulti");
2063 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2064 (card->state != CARD_STATE_UP))
2066 if (!card->options.sniffer) {
2068 spin_lock_bh(&card->mclock);
2070 qeth_l3_mark_all_mc_to_be_deleted(card);
2072 qeth_l3_add_multicast_ipv4(card);
2073 #ifdef CONFIG_QETH_IPV6
2074 qeth_l3_add_multicast_ipv6(card);
2076 qeth_l3_delete_nonused_mc(card);
2077 qeth_l3_add_all_new_mc(card);
2079 spin_unlock_bh(&card->mclock);
2081 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2084 qeth_l3_handle_promisc_mode(card);
2087 static const char *qeth_l3_arp_get_error_cause(int *rc)
2090 case QETH_IPA_ARP_RC_FAILED:
2092 return "operation failed";
2093 case QETH_IPA_ARP_RC_NOTSUPP:
2095 return "operation not supported";
2096 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2098 return "argument out of range";
2099 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2101 return "query operation not supported";
2102 case QETH_IPA_ARP_RC_Q_NO_DATA:
2104 return "no query data available";
2106 return "unknown error";
2110 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2115 QETH_CARD_TEXT(card, 3, "arpstnoe");
2118 * currently GuestLAN only supports the ARP assist function
2119 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2120 * thus we say EOPNOTSUPP for this ARP function
2122 if (card->info.guestlan)
2124 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2127 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2128 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2132 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2133 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2134 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2139 static __u32 get_arp_entry_size(struct qeth_card *card,
2140 struct qeth_arp_query_data *qdata,
2141 struct qeth_arp_entrytype *type, __u8 strip_entries)
2146 is_hsi = qdata->reply_bits == 5;
2147 if (type->ip == QETHARP_IP_ADDR_V4) {
2148 QETH_CARD_TEXT(card, 4, "arpev4");
2149 if (strip_entries) {
2150 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2151 sizeof(struct qeth_arp_qi_entry7_short);
2153 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2154 sizeof(struct qeth_arp_qi_entry7);
2156 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2157 QETH_CARD_TEXT(card, 4, "arpev6");
2158 if (strip_entries) {
2160 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2161 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2164 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2165 sizeof(struct qeth_arp_qi_entry7_ipv6);
2168 QETH_CARD_TEXT(card, 4, "arpinv");
2175 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2177 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2178 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2181 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2182 struct qeth_reply *reply, unsigned long data)
2184 struct qeth_ipa_cmd *cmd;
2185 struct qeth_arp_query_data *qdata;
2186 struct qeth_arp_query_info *qinfo;
2189 int entrybytes_done;
2191 __u8 do_strip_entries;
2193 QETH_CARD_TEXT(card, 3, "arpquecb");
2195 qinfo = (struct qeth_arp_query_info *) reply->param;
2196 cmd = (struct qeth_ipa_cmd *) data;
2197 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2198 if (cmd->hdr.return_code) {
2199 QETH_CARD_TEXT(card, 4, "arpcberr");
2200 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2203 if (cmd->data.setassparms.hdr.return_code) {
2204 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2205 QETH_CARD_TEXT(card, 4, "setaperr");
2206 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2209 qdata = &cmd->data.setassparms.data.query_arp;
2210 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2212 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2213 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2214 entrybytes_done = 0;
2215 for (e = 0; e < qdata->no_entries; ++e) {
2218 struct qeth_arp_entrytype *etype;
2220 cur_entry = &qdata->data + entrybytes_done;
2221 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2222 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2223 QETH_CARD_TEXT(card, 4, "pmis");
2224 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2227 esize = get_arp_entry_size(card, qdata, etype,
2229 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2233 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2234 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2235 cmd->hdr.return_code = IPA_RC_ENOMEM;
2239 memcpy(qinfo->udata + qinfo->udata_offset,
2240 &qdata->data + entrybytes_done + stripped_bytes,
2242 entrybytes_done += esize + stripped_bytes;
2243 qinfo->udata_offset += esize;
2244 ++qinfo->no_entries;
2246 /* check if all replies received ... */
2247 if (cmd->data.setassparms.hdr.seq_no <
2248 cmd->data.setassparms.hdr.number_of_replies)
2250 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2251 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2252 /* keep STRIP_ENTRIES flag so the user program can distinguish
2253 * stripped entries from normal ones */
2254 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2255 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2256 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2257 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2261 memcpy(qinfo->udata, &i, 4);
2265 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2266 struct qeth_cmd_buffer *iob, int len,
2267 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2271 QETH_CARD_TEXT(card, 4, "sendarp");
2273 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2274 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2275 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2276 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2277 reply_cb, reply_param);
2280 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2281 enum qeth_prot_versions prot,
2282 struct qeth_arp_query_info *qinfo)
2284 struct qeth_cmd_buffer *iob;
2285 struct qeth_ipa_cmd *cmd;
2289 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2291 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2292 IPA_CMD_ASS_ARP_QUERY_INFO,
2293 sizeof(struct qeth_arp_query_data)
2298 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2299 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2300 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2301 cmd->data.setassparms.data.query_arp.no_entries = 0;
2302 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2303 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2304 qeth_l3_arp_query_cb, (void *)qinfo);
2308 "Error while querying ARP cache on %s: %s "
2309 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2310 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2316 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2318 struct qeth_arp_query_info qinfo = {0, };
2321 QETH_CARD_TEXT(card, 3, "arpquery");
2323 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2324 IPA_ARP_PROCESSING)) {
2325 QETH_CARD_TEXT(card, 3, "arpqnsup");
2329 /* get size of userspace buffer and mask_bits -> 6 bytes */
2330 if (copy_from_user(&qinfo, udata, 6)) {
2334 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2339 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2340 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2342 if (copy_to_user(udata, qinfo.udata, 4))
2346 #ifdef CONFIG_QETH_IPV6
2347 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2348 /* fails in case of GuestLAN QDIO mode */
2349 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6, &qinfo);
2352 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2353 QETH_CARD_TEXT(card, 4, "qactf");
2357 QETH_CARD_TEXT(card, 4, "qacts");
2365 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2366 struct qeth_arp_cache_entry *entry)
2368 struct qeth_cmd_buffer *iob;
2373 QETH_CARD_TEXT(card, 3, "arpadent");
2376 * currently GuestLAN only supports the ARP assist function
2377 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2378 * thus we say EOPNOTSUPP for this ARP function
2380 if (card->info.guestlan)
2382 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2386 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2387 IPA_CMD_ASS_ARP_ADD_ENTRY,
2388 sizeof(struct qeth_arp_cache_entry),
2392 rc = qeth_send_setassparms(card, iob,
2393 sizeof(struct qeth_arp_cache_entry),
2394 (unsigned long) entry,
2395 qeth_setassparms_cb, NULL);
2398 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2399 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2400 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2401 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2406 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2407 struct qeth_arp_cache_entry *entry)
2409 struct qeth_cmd_buffer *iob;
2410 char buf[16] = {0, };
2414 QETH_CARD_TEXT(card, 3, "arprment");
2417 * currently GuestLAN only supports the ARP assist function
2418 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2419 * thus we say EOPNOTSUPP for this ARP function
2421 if (card->info.guestlan)
2423 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2426 memcpy(buf, entry, 12);
2427 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2428 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2433 rc = qeth_send_setassparms(card, iob,
2434 12, (unsigned long)buf,
2435 qeth_setassparms_cb, NULL);
2439 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2440 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2441 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2442 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2447 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2452 QETH_CARD_TEXT(card, 3, "arpflush");
2455 * currently GuestLAN only supports the ARP assist function
2456 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2457 * thus we say EOPNOTSUPP for this ARP function
2459 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2461 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2464 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2465 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2468 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2469 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2470 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2475 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2477 struct qeth_card *card = dev->ml_priv;
2478 struct qeth_arp_cache_entry arp_entry;
2479 struct mii_ioctl_data *mii_data;
2485 if (!qeth_card_hw_is_reachable(card))
2489 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2490 if (!capable(CAP_NET_ADMIN)) {
2494 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2496 case SIOC_QETH_ARP_QUERY_INFO:
2497 if (!capable(CAP_NET_ADMIN)) {
2501 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2503 case SIOC_QETH_ARP_ADD_ENTRY:
2504 if (!capable(CAP_NET_ADMIN)) {
2508 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2509 sizeof(struct qeth_arp_cache_entry)))
2512 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2514 case SIOC_QETH_ARP_REMOVE_ENTRY:
2515 if (!capable(CAP_NET_ADMIN)) {
2519 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2520 sizeof(struct qeth_arp_cache_entry)))
2523 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2525 case SIOC_QETH_ARP_FLUSH_CACHE:
2526 if (!capable(CAP_NET_ADMIN)) {
2530 rc = qeth_l3_arp_flush_cache(card);
2532 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2533 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2535 case SIOC_QETH_GET_CARD_TYPE:
2536 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2537 card->info.type == QETH_CARD_TYPE_OSX) &&
2538 !card->info.guestlan)
2543 mii_data = if_mii(rq);
2544 mii_data->phy_id = 0;
2547 mii_data = if_mii(rq);
2548 if (mii_data->phy_id != 0)
2551 mii_data->val_out = qeth_mdio_read(dev,
2555 case SIOC_QETH_QUERY_OAT:
2556 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
2562 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2566 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2568 int cast_type = RTN_UNSPEC;
2569 struct neighbour *n = NULL;
2570 struct dst_entry *dst;
2575 n = dst_neigh_lookup_skb(dst, skb);
2577 cast_type = n->type;
2580 if ((cast_type == RTN_BROADCAST) ||
2581 (cast_type == RTN_MULTICAST) ||
2582 (cast_type == RTN_ANYCAST))
2589 /* try something else */
2590 if (skb->protocol == ETH_P_IPV6)
2591 return (skb_network_header(skb)[24] == 0xff) ?
2593 else if (skb->protocol == ETH_P_IP)
2594 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2597 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2598 return RTN_BROADCAST;
2602 hdr_mac = *((u16 *)skb->data);
2604 switch (card->info.link_type) {
2605 case QETH_LINK_TYPE_HSTR:
2606 case QETH_LINK_TYPE_LANE_TR:
2607 if ((hdr_mac == QETH_TR_MAC_NC) ||
2608 (hdr_mac == QETH_TR_MAC_C))
2609 return RTN_MULTICAST;
2611 /* eth or so multicast? */
2613 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2614 (hdr_mac == QETH_ETH_MAC_V6))
2615 return RTN_MULTICAST;
2621 static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2622 struct qeth_hdr *hdr, struct sk_buff *skb)
2625 struct af_iucv_trans_hdr *iucv_hdr;
2627 memset(hdr, 0, sizeof(struct qeth_hdr));
2628 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2629 hdr->hdr.l3.ext_flags = 0;
2630 hdr->hdr.l3.length = skb->len - ETH_HLEN;
2631 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2633 iucv_hdr = (struct af_iucv_trans_hdr *) (skb->data + ETH_HLEN);
2634 memset(daddr, 0, sizeof(daddr));
2637 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2638 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2641 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2642 struct sk_buff *skb, int ipv, int cast_type)
2644 struct dst_entry *dst;
2646 memset(hdr, 0, sizeof(struct qeth_hdr));
2647 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2648 hdr->hdr.l3.ext_flags = 0;
2651 * before we're going to overwrite this location with next hop ip.
2652 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2654 if (skb_vlan_tag_present(skb)) {
2655 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2656 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2658 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2659 hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
2662 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2667 struct rtable *rt = (struct rtable *) dst;
2668 __be32 *pkey = &ip_hdr(skb)->daddr;
2671 pkey = &rt->rt_gateway;
2674 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2675 memset(hdr->hdr.l3.dest_addr, 0, 12);
2676 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
2677 } else if (ipv == 6) {
2678 struct rt6_info *rt = (struct rt6_info *) dst;
2679 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2681 if (!ipv6_addr_any(&rt->rt6i_gateway))
2682 pkey = &rt->rt6i_gateway;
2685 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2686 if (card->info.type == QETH_CARD_TYPE_IQD)
2687 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2688 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
2690 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2691 skb->dev->broadcast, 6)) {
2693 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2696 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2697 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2698 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2704 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2705 struct qeth_hdr *hdr, struct sk_buff *skb)
2707 struct iphdr *iph = ip_hdr(skb);
2709 /* tcph->check contains already the pseudo hdr checksum
2710 * so just set the header flags
2712 if (iph->protocol == IPPROTO_UDP)
2713 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2714 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2715 QETH_HDR_EXT_CSUM_HDR_REQ;
2717 if (card->options.performance_stats)
2718 card->perf_stats.tx_csum++;
2721 static void qeth_tso_fill_header(struct qeth_card *card,
2722 struct qeth_hdr *qhdr, struct sk_buff *skb)
2724 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2725 struct tcphdr *tcph = tcp_hdr(skb);
2726 struct iphdr *iph = ip_hdr(skb);
2727 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2729 /*fix header to TSO values ...*/
2730 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2731 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2732 /*set values which are fix for the first approach ...*/
2733 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2734 hdr->ext.imb_hdr_no = 1;
2735 hdr->ext.hdr_type = 1;
2736 hdr->ext.hdr_version = 1;
2737 hdr->ext.hdr_len = 28;
2738 /*insert non-fix values */
2739 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2740 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2741 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2742 sizeof(struct qeth_hdr_tso));
2744 if (skb->protocol == ETH_P_IPV6) {
2745 ip6h->payload_len = 0;
2746 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2749 /*OSA want us to set these values ...*/
2750 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2758 * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
2759 * @card: qeth card structure, to check max. elems.
2761 * @extra_elems: extra elems needed, to check against max.
2763 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
2764 * skb data, including linear part and fragments, but excluding TCP header.
2765 * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
2766 * Checks if the result plus extra_elems fits under the limit for the card.
2767 * Returns 0 if it does not.
2768 * Note: extra_elems is not included in the returned result.
2770 static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
2771 struct sk_buff *skb, int extra_elems)
2773 addr_t start = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
2774 addr_t end = (addr_t)skb->data + skb_headlen(skb);
2775 int elements = qeth_get_elements_for_frags(skb);
2778 elements += qeth_get_elements_for_range(start, end);
2780 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2782 "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
2783 elements + extra_elems, skb->len);
2789 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2793 struct qeth_hdr *hdr = NULL;
2794 int hdr_elements = 0;
2796 struct qeth_card *card = dev->ml_priv;
2797 struct sk_buff *new_skb = NULL;
2798 int ipv = qeth_get_ip_version(skb);
2799 int cast_type = qeth_l3_get_cast_type(card, skb);
2800 struct qeth_qdio_out_q *queue =
2801 card->qdio.out_qs[card->qdio.do_prio_queueing
2802 || (cast_type && card->info.is_multicast_different) ?
2803 qeth_get_priority_queue(card, skb, ipv, cast_type) :
2804 card->qdio.default_out_queue];
2805 int tx_bytes = skb->len;
2807 int data_offset = -1;
2810 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2811 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2812 ((card->options.cq == QETH_CQ_ENABLED) &&
2813 (skb->protocol != ETH_P_AF_IUCV)))) ||
2814 card->options.sniffer)
2817 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2818 card->stats.tx_carrier_errors++;
2822 if ((cast_type == RTN_BROADCAST) &&
2823 (card->info.broadcast_capable == 0))
2826 if (card->options.performance_stats) {
2827 card->perf_stats.outbound_cnt++;
2828 card->perf_stats.outbound_start_time = qeth_get_micros();
2831 /* Ignore segment size from skb_is_gso(), 1 page is always used. */
2832 use_tso = skb_is_gso(skb) &&
2833 (qeth_get_ip_protocol(skb) == IPPROTO_TCP) && (ipv == 4);
2835 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2836 !skb_is_nonlinear(skb)) {
2838 data_offset = ETH_HLEN;
2839 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2844 /* create a clone with writeable headroom */
2845 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2851 if (card->info.type == QETH_CARD_TYPE_IQD) {
2852 if (data_offset < 0)
2853 skb_pull(new_skb, ETH_HLEN);
2856 skb_pull(new_skb, ETH_HLEN);
2859 if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
2860 skb_push(new_skb, VLAN_HLEN);
2861 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2862 skb_copy_to_linear_data_offset(new_skb, 4,
2863 new_skb->data + 8, 4);
2864 skb_copy_to_linear_data_offset(new_skb, 8,
2865 new_skb->data + 12, 4);
2866 tag = (u16 *)(new_skb->data + 12);
2867 *tag = __constant_htons(ETH_P_8021Q);
2868 *(tag + 1) = htons(skb_vlan_tag_get(new_skb));
2872 netif_stop_queue(dev);
2874 /* fix hardware limitation: as long as we do not have sbal
2875 * chaining we can not send long frag lists
2877 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
2878 ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) ||
2879 (!use_tso && !qeth_get_elements_no(card, new_skb, 0, 0)))) {
2880 int lin_rc = skb_linearize(new_skb);
2882 if (card->options.performance_stats) {
2884 card->perf_stats.tx_linfail++;
2886 card->perf_stats.tx_lin++;
2893 hdr = (struct qeth_hdr *)skb_push(new_skb,
2894 sizeof(struct qeth_hdr_tso));
2895 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2896 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2897 qeth_tso_fill_header(card, hdr, new_skb);
2900 if (data_offset < 0) {
2901 hdr = (struct qeth_hdr *)skb_push(new_skb,
2902 sizeof(struct qeth_hdr));
2903 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2906 if (new_skb->protocol == ETH_P_AF_IUCV)
2907 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
2909 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2911 hdr->hdr.l3.length = new_skb->len - data_offset;
2915 if (skb->ip_summed == CHECKSUM_PARTIAL)
2916 qeth_l3_hdr_csum(card, hdr, new_skb);
2919 elements = use_tso ?
2920 qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) :
2921 qeth_get_elements_no(card, new_skb, hdr_elements,
2922 (data_offset > 0) ? data_offset : 0);
2924 if (data_offset >= 0)
2925 kmem_cache_free(qeth_core_header_cache, hdr);
2928 elements += hdr_elements;
2930 if (card->info.type != QETH_CARD_TYPE_IQD) {
2933 len = ((unsigned long)tcp_hdr(new_skb) +
2934 tcp_hdrlen(new_skb)) -
2935 (unsigned long)new_skb->data;
2937 len = sizeof(struct qeth_hdr_layer3);
2939 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
2941 rc = qeth_do_send_packet(card, queue, new_skb, hdr, elements);
2943 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
2944 elements, data_offset, 0);
2947 card->stats.tx_packets++;
2948 card->stats.tx_bytes += tx_bytes;
2950 dev_kfree_skb_any(skb);
2951 if (card->options.performance_stats) {
2952 nr_frags = skb_shinfo(new_skb)->nr_frags;
2954 card->perf_stats.large_send_bytes += tx_bytes;
2955 card->perf_stats.large_send_cnt++;
2958 card->perf_stats.sg_skbs_sent++;
2959 /* nr_frags + skb->data */
2960 card->perf_stats.sg_frags_sent += nr_frags + 1;
2965 if (data_offset >= 0)
2966 kmem_cache_free(qeth_core_header_cache, hdr);
2970 dev_kfree_skb_any(new_skb);
2971 return NETDEV_TX_BUSY;
2976 netif_wake_queue(dev);
2977 if (card->options.performance_stats)
2978 card->perf_stats.outbound_time += qeth_get_micros() -
2979 card->perf_stats.outbound_start_time;
2983 card->stats.tx_dropped++;
2984 card->stats.tx_errors++;
2985 if ((new_skb != skb) && new_skb)
2986 dev_kfree_skb_any(new_skb);
2987 dev_kfree_skb_any(skb);
2988 netif_wake_queue(dev);
2989 return NETDEV_TX_OK;
2992 static int __qeth_l3_open(struct net_device *dev)
2994 struct qeth_card *card = dev->ml_priv;
2997 QETH_CARD_TEXT(card, 4, "qethopen");
2998 if (card->state == CARD_STATE_UP)
3000 if (card->state != CARD_STATE_SOFTSETUP)
3002 card->data.state = CH_STATE_UP;
3003 card->state = CARD_STATE_UP;
3004 netif_start_queue(dev);
3006 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3007 napi_enable(&card->napi);
3009 napi_schedule(&card->napi);
3010 /* kick-start the NAPI softirq: */
3017 static int qeth_l3_open(struct net_device *dev)
3019 struct qeth_card *card = dev->ml_priv;
3021 QETH_CARD_TEXT(card, 5, "qethope_");
3022 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3023 QETH_CARD_TEXT(card, 3, "openREC");
3024 return -ERESTARTSYS;
3026 return __qeth_l3_open(dev);
3029 static int qeth_l3_stop(struct net_device *dev)
3031 struct qeth_card *card = dev->ml_priv;
3033 QETH_CARD_TEXT(card, 4, "qethstop");
3034 netif_tx_disable(dev);
3035 if (card->state == CARD_STATE_UP) {
3036 card->state = CARD_STATE_SOFTSETUP;
3037 napi_disable(&card->napi);
3042 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3043 .get_link = ethtool_op_get_link,
3044 .get_strings = qeth_core_get_strings,
3045 .get_ethtool_stats = qeth_core_get_ethtool_stats,
3046 .get_sset_count = qeth_core_get_sset_count,
3047 .get_drvinfo = qeth_core_get_drvinfo,
3048 .get_settings = qeth_core_ethtool_get_settings,
3052 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3053 * NOARP on the netdevice is no option because it also turns off neighbor
3054 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3055 * arp resolution but we want the hard header (packet socket will work
3058 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3060 n->nud_state = NUD_NOARP;
3061 memcpy(n->ha, "FAKELL", 6);
3062 n->output = n->ops->connected_output;
3067 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3069 if (np->tbl->family == AF_INET)
3070 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3075 static const struct net_device_ops qeth_l3_netdev_ops = {
3076 .ndo_open = qeth_l3_open,
3077 .ndo_stop = qeth_l3_stop,
3078 .ndo_get_stats = qeth_get_stats,
3079 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3080 .ndo_features_check = qeth_features_check,
3081 .ndo_validate_addr = eth_validate_addr,
3082 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3083 .ndo_do_ioctl = qeth_l3_do_ioctl,
3084 .ndo_change_mtu = qeth_change_mtu,
3085 .ndo_fix_features = qeth_fix_features,
3086 .ndo_set_features = qeth_set_features,
3087 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3088 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3089 .ndo_tx_timeout = qeth_tx_timeout,
3092 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3093 .ndo_open = qeth_l3_open,
3094 .ndo_stop = qeth_l3_stop,
3095 .ndo_get_stats = qeth_get_stats,
3096 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3097 .ndo_validate_addr = eth_validate_addr,
3098 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3099 .ndo_do_ioctl = qeth_l3_do_ioctl,
3100 .ndo_change_mtu = qeth_change_mtu,
3101 .ndo_fix_features = qeth_fix_features,
3102 .ndo_set_features = qeth_set_features,
3103 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3104 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3105 .ndo_tx_timeout = qeth_tx_timeout,
3106 .ndo_neigh_setup = qeth_l3_neigh_setup,
3109 static int qeth_l3_setup_netdev(struct qeth_card *card)
3113 if (card->info.type == QETH_CARD_TYPE_OSD ||
3114 card->info.type == QETH_CARD_TYPE_OSX) {
3115 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3116 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3117 pr_info("qeth_l3: ignoring TR device\n");
3120 card->dev = alloc_etherdev(0);
3123 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3125 /*IPv6 address autoconfiguration stuff*/
3126 qeth_l3_get_unique_id(card);
3127 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3128 card->dev->dev_id = card->info.unique_id &
3130 if (!card->info.guestlan) {
3131 card->dev->hw_features = NETIF_F_SG |
3132 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3134 card->dev->vlan_features = NETIF_F_SG |
3135 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3137 card->dev->features |= NETIF_F_SG;
3140 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3141 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
3145 card->dev->flags |= IFF_NOARP;
3146 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3147 rc = qeth_l3_iqd_read_initial_mac(card);
3150 if (card->options.hsuid[0])
3151 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
3155 card->dev->ml_priv = card;
3156 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3157 card->dev->mtu = card->info.initial_mtu;
3158 card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
3159 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
3160 NETIF_F_HW_VLAN_CTAG_RX |
3161 NETIF_F_HW_VLAN_CTAG_FILTER;
3162 netif_keep_dst(card->dev);
3163 netif_set_gso_max_size(card->dev, (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
3166 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3167 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3168 netif_carrier_off(card->dev);
3169 return register_netdev(card->dev);
3172 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3174 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3177 rc = qeth_l3_create_device_attributes(&gdev->dev);
3180 hash_init(card->ip_htable);
3181 hash_init(card->ip_mc_htable);
3182 card->options.layer2 = 0;
3183 card->info.hwtrap = 0;
3187 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3189 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3191 qeth_l3_remove_device_attributes(&cgdev->dev);
3193 qeth_set_allowed_threads(card, 0, 1);
3194 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3196 if (cgdev->state == CCWGROUP_ONLINE)
3197 qeth_l3_set_offline(cgdev);
3200 unregister_netdev(card->dev);
3201 free_netdev(card->dev);
3205 qeth_l3_clear_ip_htable(card, 0);
3206 qeth_l3_clear_ipato_list(card);
3210 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3212 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3214 enum qeth_card_states recover_flag;
3216 mutex_lock(&card->discipline_mutex);
3217 mutex_lock(&card->conf_mutex);
3218 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3219 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3221 recover_flag = card->state;
3222 rc = qeth_core_hardsetup_card(card);
3224 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3229 if (!card->dev && qeth_l3_setup_netdev(card)) {
3234 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3235 if (card->info.hwtrap &&
3236 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3237 card->info.hwtrap = 0;
3239 card->info.hwtrap = 0;
3241 card->state = CARD_STATE_HARDSETUP;
3242 memset(&card->rx, 0, sizeof(struct qeth_rx));
3243 qeth_print_status_message(card);
3246 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3248 rc = qeth_l3_setadapter_parms(card);
3250 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3251 if (!card->options.sniffer) {
3252 rc = qeth_l3_start_ipassists(card);
3254 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3257 rc = qeth_l3_setrouting_v4(card);
3259 QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
3260 rc = qeth_l3_setrouting_v6(card);
3262 QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
3264 netif_tx_disable(card->dev);
3266 rc = qeth_init_qdio_queues(card);
3268 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3272 card->state = CARD_STATE_SOFTSETUP;
3274 qeth_set_allowed_threads(card, 0xffffffff, 0);
3275 qeth_l3_recover_ip(card);
3276 if (card->lan_online)
3277 netif_carrier_on(card->dev);
3279 netif_carrier_off(card->dev);
3280 if (recover_flag == CARD_STATE_RECOVER) {
3283 __qeth_l3_open(card->dev);
3285 dev_open(card->dev);
3286 qeth_l3_set_multicast_list(card->dev);
3287 qeth_recover_features(card->dev);
3290 qeth_trace_features(card);
3291 /* let user_space know that device is online */
3292 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3293 mutex_unlock(&card->conf_mutex);
3294 mutex_unlock(&card->discipline_mutex);
3297 qeth_l3_stop_card(card, 0);
3298 ccw_device_set_offline(CARD_DDEV(card));
3299 ccw_device_set_offline(CARD_WDEV(card));
3300 ccw_device_set_offline(CARD_RDEV(card));
3301 qdio_free(CARD_DDEV(card));
3302 if (recover_flag == CARD_STATE_RECOVER)
3303 card->state = CARD_STATE_RECOVER;
3305 card->state = CARD_STATE_DOWN;
3306 mutex_unlock(&card->conf_mutex);
3307 mutex_unlock(&card->discipline_mutex);
3311 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3313 return __qeth_l3_set_online(gdev, 0);
3316 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3319 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3320 int rc = 0, rc2 = 0, rc3 = 0;
3321 enum qeth_card_states recover_flag;
3323 mutex_lock(&card->discipline_mutex);
3324 mutex_lock(&card->conf_mutex);
3325 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3326 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3328 if (card->dev && netif_carrier_ok(card->dev))
3329 netif_carrier_off(card->dev);
3330 recover_flag = card->state;
3331 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3332 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3333 card->info.hwtrap = 1;
3335 qeth_l3_stop_card(card, recovery_mode);
3336 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3338 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3341 rc = ccw_device_set_offline(CARD_DDEV(card));
3342 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3343 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3345 rc = (rc2) ? rc2 : rc3;
3347 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3348 qdio_free(CARD_DDEV(card));
3349 if (recover_flag == CARD_STATE_UP)
3350 card->state = CARD_STATE_RECOVER;
3351 /* let user_space know that device is offline */
3352 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3353 mutex_unlock(&card->conf_mutex);
3354 mutex_unlock(&card->discipline_mutex);
3358 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3360 return __qeth_l3_set_offline(cgdev, 0);
3363 static int qeth_l3_recover(void *ptr)
3365 struct qeth_card *card;
3368 card = (struct qeth_card *) ptr;
3369 QETH_CARD_TEXT(card, 2, "recover1");
3370 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3371 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3373 QETH_CARD_TEXT(card, 2, "recover2");
3374 dev_warn(&card->gdev->dev,
3375 "A recovery process has been started for the device\n");
3376 qeth_set_recovery_task(card);
3377 __qeth_l3_set_offline(card->gdev, 1);
3378 rc = __qeth_l3_set_online(card->gdev, 1);
3380 dev_info(&card->gdev->dev,
3381 "Device successfully recovered!\n");
3383 qeth_close_dev(card);
3384 dev_warn(&card->gdev->dev, "The qeth device driver "
3385 "failed to recover an error on the device\n");
3387 qeth_clear_recovery_task(card);
3388 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3389 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3393 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3395 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3396 qeth_set_allowed_threads(card, 0, 1);
3397 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3398 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3399 qeth_qdio_clear_card(card, 0);
3400 qeth_clear_qdio_buffers(card);
3401 qdio_free(CARD_DDEV(card));
3404 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3406 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3409 netif_device_detach(card->dev);
3410 qeth_set_allowed_threads(card, 0, 1);
3411 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3412 if (gdev->state == CCWGROUP_OFFLINE)
3414 if (card->state == CARD_STATE_UP) {
3415 if (card->info.hwtrap)
3416 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3417 __qeth_l3_set_offline(card->gdev, 1);
3419 __qeth_l3_set_offline(card->gdev, 0);
3423 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3425 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3428 if (gdev->state == CCWGROUP_OFFLINE)
3431 if (card->state == CARD_STATE_RECOVER) {
3432 rc = __qeth_l3_set_online(card->gdev, 1);
3435 dev_close(card->dev);
3439 rc = __qeth_l3_set_online(card->gdev, 0);
3441 qeth_set_allowed_threads(card, 0xffffffff, 0);
3443 netif_device_attach(card->dev);
3445 dev_warn(&card->gdev->dev, "The qeth device driver "
3446 "failed to recover an error on the device\n");
3450 /* Returns zero if the command is successfully "consumed" */
3451 static int qeth_l3_control_event(struct qeth_card *card,
3452 struct qeth_ipa_cmd *cmd)
3457 struct qeth_discipline qeth_l3_discipline = {
3458 .devtype = &qeth_generic_devtype,
3459 .start_poll = qeth_qdio_start_poll,
3460 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3461 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3462 .recover = qeth_l3_recover,
3463 .setup = qeth_l3_probe_device,
3464 .remove = qeth_l3_remove_device,
3465 .set_online = qeth_l3_set_online,
3466 .set_offline = qeth_l3_set_offline,
3467 .shutdown = qeth_l3_shutdown,
3468 .freeze = qeth_l3_pm_suspend,
3469 .thaw = qeth_l3_pm_resume,
3470 .restore = qeth_l3_pm_resume,
3471 .control_event_handler = qeth_l3_control_event,
3473 EXPORT_SYMBOL_GPL(qeth_l3_discipline);
3475 static int qeth_l3_ip_event(struct notifier_block *this,
3476 unsigned long event, void *ptr)
3479 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3480 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3481 struct qeth_ipaddr *addr;
3482 struct qeth_card *card;
3484 if (dev_net(dev) != &init_net)
3487 card = qeth_l3_get_card_from_dev(dev);
3490 QETH_CARD_TEXT(card, 3, "ipevent");
3492 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3494 addr->u.a4.addr = ifa->ifa_address;
3495 addr->u.a4.mask = ifa->ifa_mask;
3496 addr->type = QETH_IP_TYPE_NORMAL;
3502 spin_lock_bh(&card->ip_lock);
3503 qeth_l3_add_ip(card, addr);
3504 spin_unlock_bh(&card->ip_lock);
3507 spin_lock_bh(&card->ip_lock);
3508 qeth_l3_delete_ip(card, addr);
3509 spin_unlock_bh(&card->ip_lock);
3517 static struct notifier_block qeth_l3_ip_notifier = {
3522 #ifdef CONFIG_QETH_IPV6
3524 * IPv6 event handler
3526 static int qeth_l3_ip6_event(struct notifier_block *this,
3527 unsigned long event, void *ptr)
3529 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3530 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3531 struct qeth_ipaddr *addr;
3532 struct qeth_card *card;
3534 card = qeth_l3_get_card_from_dev(dev);
3537 QETH_CARD_TEXT(card, 3, "ip6event");
3538 if (!qeth_is_supported(card, IPA_IPV6))
3541 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3543 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3544 addr->u.a6.pfxlen = ifa->prefix_len;
3545 addr->type = QETH_IP_TYPE_NORMAL;
3551 spin_lock_bh(&card->ip_lock);
3552 qeth_l3_add_ip(card, addr);
3553 spin_unlock_bh(&card->ip_lock);
3556 spin_lock_bh(&card->ip_lock);
3557 qeth_l3_delete_ip(card, addr);
3558 spin_unlock_bh(&card->ip_lock);
3566 static struct notifier_block qeth_l3_ip6_notifier = {
3572 static int qeth_l3_register_notifiers(void)
3576 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3577 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3580 #ifdef CONFIG_QETH_IPV6
3581 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3583 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3587 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
3592 static void qeth_l3_unregister_notifiers(void)
3595 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3596 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3597 #ifdef CONFIG_QETH_IPV6
3598 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3599 #endif /* QETH_IPV6 */
3602 static int __init qeth_l3_init(void)
3606 pr_info("register layer 3 discipline\n");
3607 rc = qeth_l3_register_notifiers();
3611 static void __exit qeth_l3_exit(void)
3613 qeth_l3_unregister_notifiers();
3614 pr_info("unregister layer 3 discipline\n");
3617 module_init(qeth_l3_init);
3618 module_exit(qeth_l3_exit);
3619 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3620 MODULE_DESCRIPTION("qeth layer 3 discipline");
3621 MODULE_LICENSE("GPL");