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 void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
162 for (i = 0; i < len; ++i) {
164 for (j = 7; j >= 0; --j) {
165 bits[i*8 + j] = octet & 1;
171 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
172 struct qeth_ipaddr *addr)
174 struct qeth_ipato_entry *ipatoe;
175 u8 addr_bits[128] = {0, };
176 u8 ipatoe_bits[128] = {0, };
179 if (!card->ipato.enabled)
182 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
183 (addr->proto == QETH_PROT_IPV4)? 4:16);
184 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
185 if (addr->proto != ipatoe->proto)
187 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
188 (ipatoe->proto == QETH_PROT_IPV4) ?
190 if (addr->proto == QETH_PROT_IPV4)
191 rc = !memcmp(addr_bits, ipatoe_bits,
192 min(32, ipatoe->mask_bits));
194 rc = !memcmp(addr_bits, ipatoe_bits,
195 min(128, ipatoe->mask_bits));
200 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
202 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
209 qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr *addr1, struct qeth_ipaddr *addr2)
211 return addr1->proto == addr2->proto &&
212 !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) &&
213 !memcmp(&addr1->mac, &addr2->mac, sizeof(addr1->mac));
216 static struct qeth_ipaddr *
217 qeth_l3_ip_from_hash(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
219 struct qeth_ipaddr *addr;
221 if (tmp_addr->is_multicast) {
222 hash_for_each_possible(card->ip_mc_htable, addr,
223 hnode, qeth_l3_ipaddr_hash(tmp_addr))
224 if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
227 hash_for_each_possible(card->ip_htable, addr,
228 hnode, qeth_l3_ipaddr_hash(tmp_addr))
229 if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
236 int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
239 struct qeth_ipaddr *addr;
241 QETH_CARD_TEXT(card, 4, "delip");
243 if (tmp_addr->proto == QETH_PROT_IPV4)
244 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
246 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
247 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
250 addr = qeth_l3_ip_from_hash(card, tmp_addr);
255 if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
257 if (addr->in_progress)
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 /* qeth_l3_register_addr_entry can go to sleep
300 * if we add a IPV4 addr. It is caused by the reason
301 * that SETIP ipa cmd starts ARP staff for IPV4 addr.
302 * Thus we should unlock spinlock, and make a protection
303 * using in_progress variable to indicate that there is
304 * an hardware operation with this IPV4 address
306 if (addr->proto == QETH_PROT_IPV4) {
307 addr->in_progress = 1;
308 spin_unlock_bh(&card->ip_lock);
309 rc = qeth_l3_register_addr_entry(card, addr);
310 spin_lock_bh(&card->ip_lock);
311 addr->in_progress = 0;
313 rc = qeth_l3_register_addr_entry(card, addr);
315 if (!rc || (rc == IPA_RC_DUPLICATE_IP_ADDRESS) ||
316 (rc == IPA_RC_LAN_OFFLINE)) {
317 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
318 if (addr->ref_counter < 1) {
319 qeth_l3_delete_ip(card, addr);
323 hash_del(&addr->hnode);
327 if (addr->type == QETH_IP_TYPE_NORMAL)
335 struct qeth_ipaddr *qeth_l3_get_addr_buffer(
336 enum qeth_prot_versions prot)
338 struct qeth_ipaddr *addr;
340 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
344 addr->type = QETH_IP_TYPE_NORMAL;
345 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
351 static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
353 struct qeth_ipaddr *addr;
354 struct hlist_node *tmp;
357 QETH_CARD_TEXT(card, 4, "clearip");
359 if (recover && card->options.sniffer)
362 spin_lock_bh(&card->ip_lock);
364 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
366 hash_del(&addr->hnode);
370 addr->disp_flag = QETH_DISP_ADDR_ADD;
373 spin_unlock_bh(&card->ip_lock);
375 spin_lock_bh(&card->mclock);
377 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
378 hash_del(&addr->hnode);
382 spin_unlock_bh(&card->mclock);
386 static void qeth_l3_recover_ip(struct qeth_card *card)
388 struct qeth_ipaddr *addr;
389 struct hlist_node *tmp;
393 QETH_CARD_TEXT(card, 4, "recoverip");
395 spin_lock_bh(&card->ip_lock);
397 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
398 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
399 if (addr->proto == QETH_PROT_IPV4) {
400 addr->in_progress = 1;
401 spin_unlock_bh(&card->ip_lock);
402 rc = qeth_l3_register_addr_entry(card, addr);
403 spin_lock_bh(&card->ip_lock);
404 addr->in_progress = 0;
406 rc = qeth_l3_register_addr_entry(card, addr);
409 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
410 if (addr->ref_counter < 1) {
411 qeth_l3_delete_ip(card, addr);
415 hash_del(&addr->hnode);
421 spin_unlock_bh(&card->ip_lock);
425 static int qeth_l3_send_setdelmc(struct qeth_card *card,
426 struct qeth_ipaddr *addr, int ipacmd)
429 struct qeth_cmd_buffer *iob;
430 struct qeth_ipa_cmd *cmd;
432 QETH_CARD_TEXT(card, 4, "setdelmc");
434 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
437 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
438 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
439 if (addr->proto == QETH_PROT_IPV6)
440 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
441 sizeof(struct in6_addr));
443 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
445 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
450 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
453 for (i = 0; i < 16; i++) {
458 netmask[i] = (u8)(0xFF00 >> j);
464 static int qeth_l3_send_setdelip(struct qeth_card *card,
465 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
468 struct qeth_cmd_buffer *iob;
469 struct qeth_ipa_cmd *cmd;
472 QETH_CARD_TEXT(card, 4, "setdelip");
473 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
475 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
478 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
479 if (addr->proto == QETH_PROT_IPV6) {
480 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
481 sizeof(struct in6_addr));
482 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
483 memcpy(cmd->data.setdelip6.mask, netmask,
484 sizeof(struct in6_addr));
485 cmd->data.setdelip6.flags = flags;
487 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
488 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
489 cmd->data.setdelip4.flags = flags;
492 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
497 static int qeth_l3_send_setrouting(struct qeth_card *card,
498 enum qeth_routing_types type, enum qeth_prot_versions prot)
501 struct qeth_ipa_cmd *cmd;
502 struct qeth_cmd_buffer *iob;
504 QETH_CARD_TEXT(card, 4, "setroutg");
505 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
508 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
509 cmd->data.setrtg.type = (type);
510 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
515 static int qeth_l3_correct_routing_type(struct qeth_card *card,
516 enum qeth_routing_types *type, enum qeth_prot_versions prot)
518 if (card->info.type == QETH_CARD_TYPE_IQD) {
521 case PRIMARY_CONNECTOR:
522 case SECONDARY_CONNECTOR:
523 case MULTICAST_ROUTER:
532 case SECONDARY_ROUTER:
534 case MULTICAST_ROUTER:
535 if (qeth_is_ipafunc_supported(card, prot,
547 int qeth_l3_setrouting_v4(struct qeth_card *card)
551 QETH_CARD_TEXT(card, 3, "setrtg4");
553 rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
558 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
561 card->options.route4.type = NO_ROUTER;
562 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
563 " on %s. Type set to 'no router'.\n", rc,
564 QETH_CARD_IFNAME(card));
569 int qeth_l3_setrouting_v6(struct qeth_card *card)
573 QETH_CARD_TEXT(card, 3, "setrtg6");
574 #ifdef CONFIG_QETH_IPV6
576 if (!qeth_is_supported(card, IPA_IPV6))
578 rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
583 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
586 card->options.route6.type = NO_ROUTER;
587 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
588 " on %s. Type set to 'no router'.\n", rc,
589 QETH_CARD_IFNAME(card));
596 * IP address takeover related functions
598 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
600 struct qeth_ipato_entry *ipatoe, *tmp;
602 spin_lock_bh(&card->ip_lock);
604 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
605 list_del(&ipatoe->entry);
609 spin_unlock_bh(&card->ip_lock);
612 int qeth_l3_add_ipato_entry(struct qeth_card *card,
613 struct qeth_ipato_entry *new)
615 struct qeth_ipato_entry *ipatoe;
618 QETH_CARD_TEXT(card, 2, "addipato");
620 spin_lock_bh(&card->ip_lock);
622 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
623 if (ipatoe->proto != new->proto)
625 if (!memcmp(ipatoe->addr, new->addr,
626 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
627 (ipatoe->mask_bits == new->mask_bits)) {
634 list_add_tail(&new->entry, &card->ipato.entries);
636 spin_unlock_bh(&card->ip_lock);
641 void qeth_l3_del_ipato_entry(struct qeth_card *card,
642 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
644 struct qeth_ipato_entry *ipatoe, *tmp;
646 QETH_CARD_TEXT(card, 2, "delipato");
648 spin_lock_bh(&card->ip_lock);
650 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
651 if (ipatoe->proto != proto)
653 if (!memcmp(ipatoe->addr, addr,
654 (proto == QETH_PROT_IPV4)? 4:16) &&
655 (ipatoe->mask_bits == mask_bits)) {
656 list_del(&ipatoe->entry);
661 spin_unlock_bh(&card->ip_lock);
665 * VIPA related functions
667 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
670 struct qeth_ipaddr *ipaddr;
673 ipaddr = qeth_l3_get_addr_buffer(proto);
675 if (proto == QETH_PROT_IPV4) {
676 QETH_CARD_TEXT(card, 2, "addvipa4");
677 memcpy(&ipaddr->u.a4.addr, addr, 4);
678 ipaddr->u.a4.mask = 0;
679 } else if (proto == QETH_PROT_IPV6) {
680 QETH_CARD_TEXT(card, 2, "addvipa6");
681 memcpy(&ipaddr->u.a6.addr, addr, 16);
682 ipaddr->u.a6.pfxlen = 0;
684 ipaddr->type = QETH_IP_TYPE_VIPA;
685 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
686 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
690 spin_lock_bh(&card->ip_lock);
692 if (!qeth_l3_ip_from_hash(card, ipaddr))
695 qeth_l3_add_ip(card, ipaddr);
697 spin_unlock_bh(&card->ip_lock);
704 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
707 struct qeth_ipaddr *ipaddr;
709 ipaddr = qeth_l3_get_addr_buffer(proto);
711 if (proto == QETH_PROT_IPV4) {
712 QETH_CARD_TEXT(card, 2, "delvipa4");
713 memcpy(&ipaddr->u.a4.addr, addr, 4);
714 ipaddr->u.a4.mask = 0;
715 } else if (proto == QETH_PROT_IPV6) {
716 QETH_CARD_TEXT(card, 2, "delvipa6");
717 memcpy(&ipaddr->u.a6.addr, addr, 16);
718 ipaddr->u.a6.pfxlen = 0;
720 ipaddr->type = QETH_IP_TYPE_VIPA;
724 spin_lock_bh(&card->ip_lock);
725 qeth_l3_delete_ip(card, ipaddr);
726 spin_unlock_bh(&card->ip_lock);
732 * proxy ARP related functions
734 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
737 struct qeth_ipaddr *ipaddr;
740 ipaddr = qeth_l3_get_addr_buffer(proto);
742 if (proto == QETH_PROT_IPV4) {
743 QETH_CARD_TEXT(card, 2, "addrxip4");
744 memcpy(&ipaddr->u.a4.addr, addr, 4);
745 ipaddr->u.a4.mask = 0;
746 } else if (proto == QETH_PROT_IPV6) {
747 QETH_CARD_TEXT(card, 2, "addrxip6");
748 memcpy(&ipaddr->u.a6.addr, addr, 16);
749 ipaddr->u.a6.pfxlen = 0;
752 ipaddr->type = QETH_IP_TYPE_RXIP;
753 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
754 ipaddr->del_flags = 0;
758 spin_lock_bh(&card->ip_lock);
760 if (!qeth_l3_ip_from_hash(card, ipaddr))
763 qeth_l3_add_ip(card, ipaddr);
765 spin_unlock_bh(&card->ip_lock);
772 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
775 struct qeth_ipaddr *ipaddr;
777 ipaddr = qeth_l3_get_addr_buffer(proto);
779 if (proto == QETH_PROT_IPV4) {
780 QETH_CARD_TEXT(card, 2, "addrxip4");
781 memcpy(&ipaddr->u.a4.addr, addr, 4);
782 ipaddr->u.a4.mask = 0;
783 } else if (proto == QETH_PROT_IPV6) {
784 QETH_CARD_TEXT(card, 2, "addrxip6");
785 memcpy(&ipaddr->u.a6.addr, addr, 16);
786 ipaddr->u.a6.pfxlen = 0;
788 ipaddr->type = QETH_IP_TYPE_RXIP;
792 spin_lock_bh(&card->ip_lock);
793 qeth_l3_delete_ip(card, ipaddr);
794 spin_unlock_bh(&card->ip_lock);
799 static int qeth_l3_register_addr_entry(struct qeth_card *card,
800 struct qeth_ipaddr *addr)
807 if (addr->proto == QETH_PROT_IPV4) {
808 QETH_CARD_TEXT(card, 2, "setaddr4");
809 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
810 } else if (addr->proto == QETH_PROT_IPV6) {
811 QETH_CARD_TEXT(card, 2, "setaddr6");
812 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
813 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
815 QETH_CARD_TEXT(card, 2, "setaddr?");
816 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
819 if (addr->is_multicast)
820 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
822 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
825 QETH_CARD_TEXT(card, 2, "failed");
826 } while ((--cnt > 0) && rc);
828 QETH_CARD_TEXT(card, 2, "FAILED");
829 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
830 dev_warn(&card->gdev->dev,
831 "Registering IP address %s failed\n", buf);
836 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
837 struct qeth_ipaddr *addr)
841 if (addr->proto == QETH_PROT_IPV4) {
842 QETH_CARD_TEXT(card, 2, "deladdr4");
843 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
844 } else if (addr->proto == QETH_PROT_IPV6) {
845 QETH_CARD_TEXT(card, 2, "deladdr6");
846 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
847 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
849 QETH_CARD_TEXT(card, 2, "deladdr?");
850 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
852 if (addr->is_multicast)
853 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
855 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
858 QETH_CARD_TEXT(card, 2, "failed");
863 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
865 if (cast_type == RTN_MULTICAST)
866 return QETH_CAST_MULTICAST;
867 if (cast_type == RTN_BROADCAST)
868 return QETH_CAST_BROADCAST;
869 return QETH_CAST_UNICAST;
872 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
874 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
875 if (cast_type == RTN_MULTICAST)
876 return ct | QETH_CAST_MULTICAST;
877 if (cast_type == RTN_ANYCAST)
878 return ct | QETH_CAST_ANYCAST;
879 if (cast_type == RTN_BROADCAST)
880 return ct | QETH_CAST_BROADCAST;
881 return ct | QETH_CAST_UNICAST;
884 static int qeth_l3_setadapter_parms(struct qeth_card *card)
888 QETH_DBF_TEXT(SETUP, 2, "setadprm");
890 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
891 dev_info(&card->gdev->dev,
892 "set adapter parameters not supported.\n");
893 QETH_DBF_TEXT(SETUP, 2, " notsupp");
896 rc = qeth_query_setadapterparms(card);
898 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
899 "0x%x\n", dev_name(&card->gdev->dev), rc);
902 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
903 rc = qeth_setadpparms_change_macaddr(card);
905 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
906 " address failed\n");
912 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
913 struct qeth_reply *reply, unsigned long data)
915 struct qeth_ipa_cmd *cmd;
917 QETH_CARD_TEXT(card, 4, "defadpcb");
919 cmd = (struct qeth_ipa_cmd *) data;
920 if (cmd->hdr.return_code == 0) {
921 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
922 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
923 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
924 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
925 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
927 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
928 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
929 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
930 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
932 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
933 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
934 card->info.tx_csum_mask =
935 cmd->data.setassparms.data.flags_32bit;
936 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
942 #ifdef CONFIG_QETH_IPV6
943 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
944 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
947 struct qeth_cmd_buffer *iob;
949 QETH_CARD_TEXT(card, 4, "simassp6");
950 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
954 rc = qeth_send_setassparms(card, iob, 0, 0,
955 qeth_l3_default_setassparms_cb, NULL);
960 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
964 QETH_CARD_TEXT(card, 3, "ipaarp");
966 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
967 dev_info(&card->gdev->dev,
968 "ARP processing not supported on %s!\n",
969 QETH_CARD_IFNAME(card));
972 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
973 IPA_CMD_ASS_START, 0);
975 dev_warn(&card->gdev->dev,
976 "Starting ARP processing support for %s failed\n",
977 QETH_CARD_IFNAME(card));
982 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
986 QETH_CARD_TEXT(card, 3, "ipaipfrg");
988 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
989 dev_info(&card->gdev->dev,
990 "Hardware IP fragmentation not supported on %s\n",
991 QETH_CARD_IFNAME(card));
995 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
996 IPA_CMD_ASS_START, 0);
998 dev_warn(&card->gdev->dev,
999 "Starting IP fragmentation support for %s failed\n",
1000 QETH_CARD_IFNAME(card));
1002 dev_info(&card->gdev->dev,
1003 "Hardware IP fragmentation enabled \n");
1007 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1011 QETH_CARD_TEXT(card, 3, "stsrcmac");
1013 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1014 dev_info(&card->gdev->dev,
1015 "Inbound source MAC-address not supported on %s\n",
1016 QETH_CARD_IFNAME(card));
1020 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
1021 IPA_CMD_ASS_START, 0);
1023 dev_warn(&card->gdev->dev,
1024 "Starting source MAC-address support for %s failed\n",
1025 QETH_CARD_IFNAME(card));
1029 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1033 QETH_CARD_TEXT(card, 3, "strtvlan");
1035 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1036 dev_info(&card->gdev->dev,
1037 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1041 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
1042 IPA_CMD_ASS_START, 0);
1044 dev_warn(&card->gdev->dev,
1045 "Starting VLAN support for %s failed\n",
1046 QETH_CARD_IFNAME(card));
1048 dev_info(&card->gdev->dev, "VLAN enabled\n");
1053 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1057 QETH_CARD_TEXT(card, 3, "stmcast");
1059 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1060 dev_info(&card->gdev->dev,
1061 "Multicast not supported on %s\n",
1062 QETH_CARD_IFNAME(card));
1066 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
1067 IPA_CMD_ASS_START, 0);
1069 dev_warn(&card->gdev->dev,
1070 "Starting multicast support for %s failed\n",
1071 QETH_CARD_IFNAME(card));
1073 dev_info(&card->gdev->dev, "Multicast enabled\n");
1074 card->dev->flags |= IFF_MULTICAST;
1079 #ifdef CONFIG_QETH_IPV6
1080 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1084 QETH_CARD_TEXT(card, 3, "softipv6");
1086 if (card->info.type == QETH_CARD_TYPE_IQD)
1089 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1091 dev_err(&card->gdev->dev,
1092 "Activating IPv6 support for %s failed\n",
1093 QETH_CARD_IFNAME(card));
1096 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
1097 IPA_CMD_ASS_START, 3);
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_IPV6,
1107 dev_err(&card->gdev->dev,
1108 "Activating IPv6 support for %s failed\n",
1109 QETH_CARD_IFNAME(card));
1112 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1115 dev_warn(&card->gdev->dev,
1116 "Enabling the passthrough mode for %s failed\n",
1117 QETH_CARD_IFNAME(card));
1121 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1126 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1130 QETH_CARD_TEXT(card, 3, "strtipv6");
1132 if (!qeth_is_supported(card, IPA_IPV6)) {
1133 dev_info(&card->gdev->dev,
1134 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1137 #ifdef CONFIG_QETH_IPV6
1138 rc = qeth_l3_softsetup_ipv6(card);
1143 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1147 QETH_CARD_TEXT(card, 3, "stbrdcst");
1148 card->info.broadcast_capable = 0;
1149 if (!qeth_is_supported(card, IPA_FILTERING)) {
1150 dev_info(&card->gdev->dev,
1151 "Broadcast not supported on %s\n",
1152 QETH_CARD_IFNAME(card));
1156 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1157 IPA_CMD_ASS_START, 0);
1159 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1160 "%s failed\n", QETH_CARD_IFNAME(card));
1164 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1165 IPA_CMD_ASS_CONFIGURE, 1);
1167 dev_warn(&card->gdev->dev,
1168 "Setting up broadcast filtering for %s failed\n",
1169 QETH_CARD_IFNAME(card));
1172 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1173 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1174 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1175 IPA_CMD_ASS_ENABLE, 1);
1177 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1178 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1181 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1183 if (card->info.broadcast_capable)
1184 card->dev->flags |= IFF_BROADCAST;
1186 card->dev->flags &= ~IFF_BROADCAST;
1190 static void qeth_l3_start_ipa_checksum(struct qeth_card *card)
1192 QETH_CARD_TEXT(card, 3, "strtcsum");
1193 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)
1194 && (card->dev->features & NETIF_F_RXCSUM))
1195 qeth_set_rx_csum(card, 1);
1198 static void qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1200 QETH_CARD_TEXT(card, 3, "strttxcs");
1201 qeth_start_ipa_tx_checksum(card);
1204 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1208 QETH_CARD_TEXT(card, 3, "sttso");
1210 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1211 dev_info(&card->gdev->dev,
1212 "Outbound TSO not supported on %s\n",
1213 QETH_CARD_IFNAME(card));
1216 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1217 IPA_CMD_ASS_START, 0);
1219 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1220 "segmentation offload for %s failed\n",
1221 QETH_CARD_IFNAME(card));
1223 dev_info(&card->gdev->dev,
1224 "Outbound TSO enabled\n");
1227 card->dev->features &= ~NETIF_F_TSO;
1231 static int qeth_l3_start_ipassists(struct qeth_card *card)
1233 QETH_CARD_TEXT(card, 3, "strtipas");
1235 if (qeth_set_access_ctrl_online(card, 0))
1237 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1238 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1239 qeth_l3_start_ipa_source_mac(card); /* go on*/
1240 qeth_l3_start_ipa_vlan(card); /* go on*/
1241 qeth_l3_start_ipa_multicast(card); /* go on*/
1242 qeth_l3_start_ipa_ipv6(card); /* go on*/
1243 qeth_l3_start_ipa_broadcast(card); /* go on*/
1244 qeth_l3_start_ipa_checksum(card); /* go on*/
1245 qeth_l3_start_ipa_tx_checksum(card);
1246 qeth_l3_start_ipa_tso(card); /* go on*/
1250 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1251 struct qeth_reply *reply, unsigned long data)
1253 struct qeth_ipa_cmd *cmd;
1255 cmd = (struct qeth_ipa_cmd *) data;
1256 if (cmd->hdr.return_code == 0)
1257 memcpy(card->dev->dev_addr,
1258 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1260 eth_random_addr(card->dev->dev_addr);
1265 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1268 struct qeth_cmd_buffer *iob;
1269 struct qeth_ipa_cmd *cmd;
1271 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1273 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1277 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1278 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1279 card->info.unique_id;
1281 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1286 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1287 struct qeth_reply *reply, unsigned long data)
1289 struct qeth_ipa_cmd *cmd;
1291 cmd = (struct qeth_ipa_cmd *) data;
1292 if (cmd->hdr.return_code == 0)
1293 card->info.unique_id = *((__u16 *)
1294 &cmd->data.create_destroy_addr.unique_id[6]);
1296 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1297 UNIQUE_ID_NOT_BY_CARD;
1298 dev_warn(&card->gdev->dev, "The network adapter failed to "
1299 "generate a unique ID\n");
1304 static int qeth_l3_get_unique_id(struct qeth_card *card)
1307 struct qeth_cmd_buffer *iob;
1308 struct qeth_ipa_cmd *cmd;
1310 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1312 if (!qeth_is_supported(card, IPA_IPV6)) {
1313 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1314 UNIQUE_ID_NOT_BY_CARD;
1318 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1322 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1323 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1324 card->info.unique_id;
1326 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1331 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1334 struct qeth_ipa_cmd *cmd;
1337 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1339 cmd = (struct qeth_ipa_cmd *)data;
1340 rc = cmd->hdr.return_code;
1342 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1343 switch (cmd->data.diagass.action) {
1344 case QETH_DIAGS_CMD_TRACE_QUERY:
1346 case QETH_DIAGS_CMD_TRACE_DISABLE:
1349 case IPA_RC_INVALID_SUBCMD:
1350 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1351 dev_info(&card->gdev->dev, "The HiperSockets network "
1352 "traffic analyzer is deactivated\n");
1358 case QETH_DIAGS_CMD_TRACE_ENABLE:
1361 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1362 dev_info(&card->gdev->dev, "The HiperSockets network "
1363 "traffic analyzer is activated\n");
1365 case IPA_RC_HARDWARE_AUTH_ERROR:
1366 dev_warn(&card->gdev->dev, "The device is not "
1367 "authorized to run as a HiperSockets network "
1368 "traffic analyzer\n");
1370 case IPA_RC_TRACE_ALREADY_ACTIVE:
1371 dev_warn(&card->gdev->dev, "A HiperSockets "
1372 "network traffic analyzer is already "
1373 "active in the HiperSockets LAN\n");
1380 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1381 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1388 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1390 struct qeth_cmd_buffer *iob;
1391 struct qeth_ipa_cmd *cmd;
1393 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1395 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1398 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1399 cmd->data.diagass.subcmd_len = 16;
1400 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1401 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1402 cmd->data.diagass.action = diags_cmd;
1403 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1406 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac)
1408 ip_eth_mc_map(ipm, mac);
1411 static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card *card)
1413 struct qeth_ipaddr *addr;
1416 hash_for_each(card->ip_mc_htable, i, addr, hnode)
1417 addr->disp_flag = QETH_DISP_ADDR_DELETE;
1421 static void qeth_l3_add_all_new_mc(struct qeth_card *card)
1423 struct qeth_ipaddr *addr;
1424 struct hlist_node *tmp;
1428 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1429 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
1430 rc = qeth_l3_register_addr_entry(card, addr);
1431 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
1432 addr->ref_counter = 1;
1434 hash_del(&addr->hnode);
1442 static void qeth_l3_delete_nonused_mc(struct qeth_card *card)
1444 struct qeth_ipaddr *addr;
1445 struct hlist_node *tmp;
1449 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1450 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
1451 rc = qeth_l3_deregister_addr_entry(card, addr);
1452 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) {
1453 hash_del(&addr->hnode);
1463 qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
1465 struct ip_mc_list *im4;
1466 struct qeth_ipaddr *tmp, *ipm;
1467 char buf[MAX_ADDR_LEN];
1469 QETH_CARD_TEXT(card, 4, "addmc");
1471 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1475 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1476 im4 = rcu_dereference(im4->next_rcu)) {
1477 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf);
1479 tmp->u.a4.addr = im4->multiaddr;
1480 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1482 ipm = qeth_l3_ip_from_hash(card, tmp);
1484 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1486 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1489 memcpy(ipm->mac, buf, sizeof(tmp->mac));
1490 ipm->u.a4.addr = im4->multiaddr;
1491 ipm->is_multicast = 1;
1492 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1493 hash_add(card->ip_mc_htable,
1494 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1501 /* called with rcu_read_lock */
1502 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1504 struct in_device *in_dev;
1507 QETH_CARD_TEXT(card, 4, "addmcvl");
1509 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1512 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1513 struct net_device *netdev;
1515 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1517 if (netdev == NULL ||
1518 !(netdev->flags & IFF_UP))
1520 in_dev = __in_dev_get_rcu(netdev);
1523 qeth_l3_add_mc_to_hash(card, in_dev);
1527 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1529 struct in_device *in4_dev;
1531 QETH_CARD_TEXT(card, 4, "chkmcv4");
1534 in4_dev = __in_dev_get_rcu(card->dev);
1535 if (in4_dev == NULL)
1537 qeth_l3_add_mc_to_hash(card, in4_dev);
1538 qeth_l3_add_vlan_mc(card);
1543 #ifdef CONFIG_QETH_IPV6
1545 qeth_l3_add_mc6_to_hash(struct qeth_card *card, struct inet6_dev *in6_dev)
1547 struct qeth_ipaddr *ipm;
1548 struct ifmcaddr6 *im6;
1549 struct qeth_ipaddr *tmp;
1550 char buf[MAX_ADDR_LEN];
1552 QETH_CARD_TEXT(card, 4, "addmc6");
1554 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1558 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1559 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1561 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1562 memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
1563 sizeof(struct in6_addr));
1564 tmp->is_multicast = 1;
1566 ipm = qeth_l3_ip_from_hash(card, tmp);
1568 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1572 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1576 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1577 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1578 sizeof(struct in6_addr));
1579 ipm->is_multicast = 1;
1580 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1581 hash_add(card->ip_mc_htable,
1582 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1588 /* called with rcu_read_lock */
1589 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1591 struct inet6_dev *in_dev;
1594 QETH_CARD_TEXT(card, 4, "admc6vl");
1596 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1599 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1600 struct net_device *netdev;
1602 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1604 if (netdev == NULL ||
1605 !(netdev->flags & IFF_UP))
1607 in_dev = in6_dev_get(netdev);
1610 read_lock_bh(&in_dev->lock);
1611 qeth_l3_add_mc6_to_hash(card, in_dev);
1612 read_unlock_bh(&in_dev->lock);
1613 in6_dev_put(in_dev);
1617 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1619 struct inet6_dev *in6_dev;
1621 QETH_CARD_TEXT(card, 4, "chkmcv6");
1623 if (!qeth_is_supported(card, IPA_IPV6))
1625 in6_dev = in6_dev_get(card->dev);
1630 read_lock_bh(&in6_dev->lock);
1631 qeth_l3_add_mc6_to_hash(card, in6_dev);
1632 qeth_l3_add_vlan_mc6(card);
1633 read_unlock_bh(&in6_dev->lock);
1635 in6_dev_put(in6_dev);
1637 #endif /* CONFIG_QETH_IPV6 */
1639 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1642 struct in_device *in_dev;
1643 struct in_ifaddr *ifa;
1644 struct qeth_ipaddr *addr;
1645 struct net_device *netdev;
1647 QETH_CARD_TEXT(card, 4, "frvaddr4");
1649 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1652 in_dev = in_dev_get(netdev);
1656 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1660 spin_lock_bh(&card->ip_lock);
1662 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1663 addr->u.a4.addr = ifa->ifa_address;
1664 addr->u.a4.mask = ifa->ifa_mask;
1665 addr->type = QETH_IP_TYPE_NORMAL;
1666 qeth_l3_delete_ip(card, addr);
1669 spin_unlock_bh(&card->ip_lock);
1675 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1678 #ifdef CONFIG_QETH_IPV6
1679 struct inet6_dev *in6_dev;
1680 struct inet6_ifaddr *ifa;
1681 struct qeth_ipaddr *addr;
1682 struct net_device *netdev;
1684 QETH_CARD_TEXT(card, 4, "frvaddr6");
1686 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1690 in6_dev = in6_dev_get(netdev);
1694 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1698 spin_lock_bh(&card->ip_lock);
1700 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1701 memcpy(&addr->u.a6.addr, &ifa->addr,
1702 sizeof(struct in6_addr));
1703 addr->u.a6.pfxlen = ifa->prefix_len;
1704 addr->type = QETH_IP_TYPE_NORMAL;
1705 qeth_l3_delete_ip(card, addr);
1708 spin_unlock_bh(&card->ip_lock);
1711 in6_dev_put(in6_dev);
1712 #endif /* CONFIG_QETH_IPV6 */
1715 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1719 qeth_l3_free_vlan_addresses4(card, vid);
1720 qeth_l3_free_vlan_addresses6(card, vid);
1724 static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1725 __be16 proto, u16 vid)
1727 struct qeth_card *card = dev->ml_priv;
1729 set_bit(vid, card->active_vlans);
1733 static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1734 __be16 proto, u16 vid)
1736 struct qeth_card *card = dev->ml_priv;
1738 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1740 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1741 QETH_CARD_TEXT(card, 3, "kidREC");
1744 /* unregister IP addresses of vlan device */
1745 qeth_l3_free_vlan_addresses(card, vid);
1746 clear_bit(vid, card->active_vlans);
1747 qeth_l3_set_multicast_list(card->dev);
1751 static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1752 struct sk_buff *skb, struct qeth_hdr *hdr,
1753 unsigned short *vlan_id)
1756 struct iphdr *ip_hdr;
1757 unsigned char tg_addr[MAX_ADDR_LEN];
1760 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1761 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1763 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1764 case QETH_CAST_MULTICAST:
1766 #ifdef CONFIG_QETH_IPV6
1767 case __constant_htons(ETH_P_IPV6):
1768 ndisc_mc_map((struct in6_addr *)
1770 tg_addr, card->dev, 0);
1773 case __constant_htons(ETH_P_IP):
1774 ip_hdr = (struct iphdr *)skb->data;
1775 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1778 memcpy(tg_addr, card->dev->broadcast,
1779 card->dev->addr_len);
1781 card->stats.multicast++;
1782 skb->pkt_type = PACKET_MULTICAST;
1784 case QETH_CAST_BROADCAST:
1785 memcpy(tg_addr, card->dev->broadcast,
1786 card->dev->addr_len);
1787 card->stats.multicast++;
1788 skb->pkt_type = PACKET_BROADCAST;
1790 case QETH_CAST_UNICAST:
1791 case QETH_CAST_ANYCAST:
1792 case QETH_CAST_NOCAST:
1794 if (card->options.sniffer)
1795 skb->pkt_type = PACKET_OTHERHOST;
1797 skb->pkt_type = PACKET_HOST;
1798 memcpy(tg_addr, card->dev->dev_addr,
1799 card->dev->addr_len);
1801 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1802 card->dev->header_ops->create(skb, card->dev, prot,
1803 tg_addr, &hdr->hdr.l3.dest_addr[2],
1804 card->dev->addr_len);
1806 card->dev->header_ops->create(skb, card->dev, prot,
1807 tg_addr, "FAKELL", card->dev->addr_len);
1810 skb->protocol = eth_type_trans(skb, card->dev);
1812 if (hdr->hdr.l3.ext_flags &
1813 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1814 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
1815 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1819 if (card->dev->features & NETIF_F_RXCSUM) {
1820 if ((hdr->hdr.l3.ext_flags &
1821 (QETH_HDR_EXT_CSUM_HDR_REQ |
1822 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1823 (QETH_HDR_EXT_CSUM_HDR_REQ |
1824 QETH_HDR_EXT_CSUM_TRANSP_REQ))
1825 skb->ip_summed = CHECKSUM_UNNECESSARY;
1827 skb->ip_summed = CHECKSUM_NONE;
1829 skb->ip_summed = CHECKSUM_NONE;
1833 static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1834 int budget, int *done)
1837 struct sk_buff *skb;
1838 struct qeth_hdr *hdr;
1845 WARN_ON_ONCE(!budget);
1847 skb = qeth_core_get_next_skb(card,
1848 &card->qdio.in_q->bufs[card->rx.b_index],
1849 &card->rx.b_element, &card->rx.e_offset, &hdr);
1854 skb->dev = card->dev;
1855 switch (hdr->hdr.l3.id) {
1856 case QETH_HEADER_TYPE_LAYER3:
1857 magic = *(__u16 *)skb->data;
1858 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1859 (magic == ETH_P_AF_IUCV)) {
1860 skb->protocol = ETH_P_AF_IUCV;
1861 skb->pkt_type = PACKET_HOST;
1862 skb->mac_header = NET_SKB_PAD;
1863 skb->dev = card->dev;
1865 card->dev->header_ops->create(skb, card->dev, 0,
1866 card->dev->dev_addr, "FAKELL",
1867 card->dev->addr_len);
1868 netif_receive_skb(skb);
1870 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
1873 if (is_vlan && !card->options.sniffer)
1874 __vlan_hwaccel_put_tag(skb,
1875 htons(ETH_P_8021Q), vlan_tag);
1876 napi_gro_receive(&card->napi, skb);
1879 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1880 skb->pkt_type = PACKET_HOST;
1881 skb->protocol = eth_type_trans(skb, skb->dev);
1883 netif_receive_skb(skb);
1886 dev_kfree_skb_any(skb);
1887 QETH_CARD_TEXT(card, 3, "inbunkno");
1888 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
1893 card->stats.rx_packets++;
1894 card->stats.rx_bytes += len;
1899 static int qeth_l3_poll(struct napi_struct *napi, int budget)
1901 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
1903 struct qeth_qdio_buffer *buffer;
1905 int new_budget = budget;
1907 if (card->options.performance_stats) {
1908 card->perf_stats.inbound_cnt++;
1909 card->perf_stats.inbound_start_time = qeth_get_micros();
1913 if (!card->rx.b_count) {
1914 card->rx.qdio_err = 0;
1915 card->rx.b_count = qdio_get_next_buffers(
1916 card->data.ccwdev, 0, &card->rx.b_index,
1917 &card->rx.qdio_err);
1918 if (card->rx.b_count <= 0) {
1919 card->rx.b_count = 0;
1922 card->rx.b_element =
1923 &card->qdio.in_q->bufs[card->rx.b_index]
1924 .buffer->element[0];
1925 card->rx.e_offset = 0;
1928 while (card->rx.b_count) {
1929 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
1930 if (!(card->rx.qdio_err &&
1931 qeth_check_qdio_errors(card, buffer->buffer,
1932 card->rx.qdio_err, "qinerr")))
1933 work_done += qeth_l3_process_inbound_buffer(
1934 card, new_budget, &done);
1939 if (card->options.performance_stats)
1940 card->perf_stats.bufs_rec++;
1941 qeth_put_buffer_pool_entry(card,
1942 buffer->pool_entry);
1943 qeth_queue_input_buffer(card, card->rx.b_index);
1945 if (card->rx.b_count) {
1947 (card->rx.b_index + 1) %
1948 QDIO_MAX_BUFFERS_PER_Q;
1949 card->rx.b_element =
1951 ->bufs[card->rx.b_index]
1952 .buffer->element[0];
1953 card->rx.e_offset = 0;
1957 if (work_done >= budget)
1960 new_budget = budget - work_done;
1964 napi_complete(napi);
1965 if (qdio_start_irq(card->data.ccwdev, 0))
1966 napi_schedule(&card->napi);
1968 if (card->options.performance_stats)
1969 card->perf_stats.inbound_time += qeth_get_micros() -
1970 card->perf_stats.inbound_start_time;
1974 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1975 struct qeth_card *card)
1980 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1981 struct net_device *netdev;
1984 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1987 if (netdev == dev) {
1988 rc = QETH_VLAN_CARD;
1993 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
1999 static int qeth_l3_verify_dev(struct net_device *dev)
2001 struct qeth_card *card;
2003 unsigned long flags;
2005 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2006 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2007 if (card->dev == dev) {
2008 rc = QETH_REAL_CARD;
2011 rc = qeth_l3_verify_vlan_dev(dev, card);
2015 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2020 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2022 struct qeth_card *card = NULL;
2025 rc = qeth_l3_verify_dev(dev);
2026 if (rc == QETH_REAL_CARD)
2027 card = dev->ml_priv;
2028 else if (rc == QETH_VLAN_CARD)
2029 card = vlan_dev_real_dev(dev)->ml_priv;
2030 if (card && card->options.layer2)
2033 QETH_CARD_TEXT_(card, 4, "%d", rc);
2037 static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2039 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2040 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2042 qeth_set_allowed_threads(card, 0, 1);
2043 if (card->options.sniffer &&
2044 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2045 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2046 if (card->read.state == CH_STATE_UP &&
2047 card->write.state == CH_STATE_UP &&
2048 (card->state == CARD_STATE_UP)) {
2050 qeth_l3_stop(card->dev);
2053 dev_close(card->dev);
2056 card->state = CARD_STATE_SOFTSETUP;
2058 if (card->state == CARD_STATE_SOFTSETUP) {
2059 qeth_l3_clear_ip_htable(card, 1);
2060 qeth_clear_ipacmd_list(card);
2061 card->state = CARD_STATE_HARDSETUP;
2063 if (card->state == CARD_STATE_HARDSETUP) {
2064 qeth_qdio_clear_card(card, 0);
2065 qeth_clear_qdio_buffers(card);
2066 qeth_clear_working_pool_list(card);
2067 card->state = CARD_STATE_DOWN;
2069 if (card->state == CARD_STATE_DOWN) {
2070 qeth_clear_cmd_buffers(&card->read);
2071 qeth_clear_cmd_buffers(&card->write);
2076 * test for and Switch promiscuous mode (on or off)
2077 * either for guestlan or HiperSocket Sniffer
2080 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2082 struct net_device *dev = card->dev;
2084 if (((dev->flags & IFF_PROMISC) &&
2085 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2086 (!(dev->flags & IFF_PROMISC) &&
2087 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2090 if (card->info.guestlan) { /* Guestlan trace */
2091 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2092 qeth_setadp_promisc_mode(card);
2093 } else if (card->options.sniffer && /* HiperSockets trace */
2094 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2095 if (dev->flags & IFF_PROMISC) {
2096 QETH_CARD_TEXT(card, 3, "+promisc");
2097 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2099 QETH_CARD_TEXT(card, 3, "-promisc");
2100 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2105 static void qeth_l3_set_multicast_list(struct net_device *dev)
2107 struct qeth_card *card = dev->ml_priv;
2109 QETH_CARD_TEXT(card, 3, "setmulti");
2110 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2111 (card->state != CARD_STATE_UP))
2113 if (!card->options.sniffer) {
2115 spin_lock_bh(&card->mclock);
2117 qeth_l3_mark_all_mc_to_be_deleted(card);
2119 qeth_l3_add_multicast_ipv4(card);
2120 #ifdef CONFIG_QETH_IPV6
2121 qeth_l3_add_multicast_ipv6(card);
2123 qeth_l3_delete_nonused_mc(card);
2124 qeth_l3_add_all_new_mc(card);
2126 spin_unlock_bh(&card->mclock);
2128 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2131 qeth_l3_handle_promisc_mode(card);
2134 static const char *qeth_l3_arp_get_error_cause(int *rc)
2137 case QETH_IPA_ARP_RC_FAILED:
2139 return "operation failed";
2140 case QETH_IPA_ARP_RC_NOTSUPP:
2142 return "operation not supported";
2143 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2145 return "argument out of range";
2146 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2148 return "query operation not supported";
2149 case QETH_IPA_ARP_RC_Q_NO_DATA:
2151 return "no query data available";
2153 return "unknown error";
2157 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2162 QETH_CARD_TEXT(card, 3, "arpstnoe");
2165 * currently GuestLAN only supports the ARP assist function
2166 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2167 * thus we say EOPNOTSUPP for this ARP function
2169 if (card->info.guestlan)
2171 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2174 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2175 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2179 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2180 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2181 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2186 static __u32 get_arp_entry_size(struct qeth_card *card,
2187 struct qeth_arp_query_data *qdata,
2188 struct qeth_arp_entrytype *type, __u8 strip_entries)
2193 is_hsi = qdata->reply_bits == 5;
2194 if (type->ip == QETHARP_IP_ADDR_V4) {
2195 QETH_CARD_TEXT(card, 4, "arpev4");
2196 if (strip_entries) {
2197 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2198 sizeof(struct qeth_arp_qi_entry7_short);
2200 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2201 sizeof(struct qeth_arp_qi_entry7);
2203 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2204 QETH_CARD_TEXT(card, 4, "arpev6");
2205 if (strip_entries) {
2207 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2208 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2211 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2212 sizeof(struct qeth_arp_qi_entry7_ipv6);
2215 QETH_CARD_TEXT(card, 4, "arpinv");
2222 static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2224 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2225 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2228 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2229 struct qeth_reply *reply, unsigned long data)
2231 struct qeth_ipa_cmd *cmd;
2232 struct qeth_arp_query_data *qdata;
2233 struct qeth_arp_query_info *qinfo;
2236 int entrybytes_done;
2238 __u8 do_strip_entries;
2240 QETH_CARD_TEXT(card, 3, "arpquecb");
2242 qinfo = (struct qeth_arp_query_info *) reply->param;
2243 cmd = (struct qeth_ipa_cmd *) data;
2244 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2245 if (cmd->hdr.return_code) {
2246 QETH_CARD_TEXT(card, 4, "arpcberr");
2247 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2250 if (cmd->data.setassparms.hdr.return_code) {
2251 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2252 QETH_CARD_TEXT(card, 4, "setaperr");
2253 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2256 qdata = &cmd->data.setassparms.data.query_arp;
2257 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2259 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2260 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2261 entrybytes_done = 0;
2262 for (e = 0; e < qdata->no_entries; ++e) {
2265 struct qeth_arp_entrytype *etype;
2267 cur_entry = &qdata->data + entrybytes_done;
2268 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2269 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2270 QETH_CARD_TEXT(card, 4, "pmis");
2271 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2274 esize = get_arp_entry_size(card, qdata, etype,
2276 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2280 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2281 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2282 cmd->hdr.return_code = IPA_RC_ENOMEM;
2286 memcpy(qinfo->udata + qinfo->udata_offset,
2287 &qdata->data + entrybytes_done + stripped_bytes,
2289 entrybytes_done += esize + stripped_bytes;
2290 qinfo->udata_offset += esize;
2291 ++qinfo->no_entries;
2293 /* check if all replies received ... */
2294 if (cmd->data.setassparms.hdr.seq_no <
2295 cmd->data.setassparms.hdr.number_of_replies)
2297 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2298 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2299 /* keep STRIP_ENTRIES flag so the user program can distinguish
2300 * stripped entries from normal ones */
2301 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2302 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2303 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2304 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2308 memcpy(qinfo->udata, &i, 4);
2312 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2313 struct qeth_cmd_buffer *iob, int len,
2314 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2318 QETH_CARD_TEXT(card, 4, "sendarp");
2320 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2321 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2322 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2323 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2324 reply_cb, reply_param);
2327 static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2328 enum qeth_prot_versions prot,
2329 struct qeth_arp_query_info *qinfo)
2331 struct qeth_cmd_buffer *iob;
2332 struct qeth_ipa_cmd *cmd;
2336 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2338 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2339 IPA_CMD_ASS_ARP_QUERY_INFO,
2340 sizeof(struct qeth_arp_query_data)
2345 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2346 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2347 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2348 cmd->data.setassparms.data.query_arp.no_entries = 0;
2349 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2350 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2351 qeth_l3_arp_query_cb, (void *)qinfo);
2355 "Error while querying ARP cache on %s: %s "
2356 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2357 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2363 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2365 struct qeth_arp_query_info qinfo = {0, };
2368 QETH_CARD_TEXT(card, 3, "arpquery");
2370 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2371 IPA_ARP_PROCESSING)) {
2372 QETH_CARD_TEXT(card, 3, "arpqnsup");
2376 /* get size of userspace buffer and mask_bits -> 6 bytes */
2377 if (copy_from_user(&qinfo, udata, 6)) {
2381 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2386 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2387 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2389 if (copy_to_user(udata, qinfo.udata, 4))
2393 #ifdef CONFIG_QETH_IPV6
2394 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2395 /* fails in case of GuestLAN QDIO mode */
2396 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2400 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2401 QETH_CARD_TEXT(card, 4, "qactf");
2405 QETH_CARD_TEXT(card, 4, "qacts");
2413 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2414 struct qeth_arp_cache_entry *entry)
2416 struct qeth_cmd_buffer *iob;
2421 QETH_CARD_TEXT(card, 3, "arpadent");
2424 * currently GuestLAN only supports the ARP assist function
2425 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2426 * thus we say EOPNOTSUPP for this ARP function
2428 if (card->info.guestlan)
2430 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2434 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2435 IPA_CMD_ASS_ARP_ADD_ENTRY,
2436 sizeof(struct qeth_arp_cache_entry),
2440 rc = qeth_send_setassparms(card, iob,
2441 sizeof(struct qeth_arp_cache_entry),
2442 (unsigned long) entry,
2443 qeth_l3_default_setassparms_cb, NULL);
2446 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2447 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2448 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2449 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2454 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2455 struct qeth_arp_cache_entry *entry)
2457 struct qeth_cmd_buffer *iob;
2458 char buf[16] = {0, };
2462 QETH_CARD_TEXT(card, 3, "arprment");
2465 * currently GuestLAN only supports the ARP assist function
2466 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2467 * thus we say EOPNOTSUPP for this ARP function
2469 if (card->info.guestlan)
2471 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2474 memcpy(buf, entry, 12);
2475 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2476 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2481 rc = qeth_send_setassparms(card, iob,
2482 12, (unsigned long)buf,
2483 qeth_l3_default_setassparms_cb, NULL);
2487 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2488 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2489 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2490 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2495 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2500 QETH_CARD_TEXT(card, 3, "arpflush");
2503 * currently GuestLAN only supports the ARP assist function
2504 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2505 * thus we say EOPNOTSUPP for this ARP function
2507 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2509 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2512 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2513 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2516 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2517 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2518 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2523 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2525 struct qeth_card *card = dev->ml_priv;
2526 struct qeth_arp_cache_entry arp_entry;
2527 struct mii_ioctl_data *mii_data;
2533 if (!qeth_card_hw_is_reachable(card))
2537 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2538 if (!capable(CAP_NET_ADMIN)) {
2542 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2544 case SIOC_QETH_ARP_QUERY_INFO:
2545 if (!capable(CAP_NET_ADMIN)) {
2549 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2551 case SIOC_QETH_ARP_ADD_ENTRY:
2552 if (!capable(CAP_NET_ADMIN)) {
2556 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2557 sizeof(struct qeth_arp_cache_entry)))
2560 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2562 case SIOC_QETH_ARP_REMOVE_ENTRY:
2563 if (!capable(CAP_NET_ADMIN)) {
2567 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2568 sizeof(struct qeth_arp_cache_entry)))
2571 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2573 case SIOC_QETH_ARP_FLUSH_CACHE:
2574 if (!capable(CAP_NET_ADMIN)) {
2578 rc = qeth_l3_arp_flush_cache(card);
2580 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2581 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2583 case SIOC_QETH_GET_CARD_TYPE:
2584 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2585 card->info.type == QETH_CARD_TYPE_OSX) &&
2586 !card->info.guestlan)
2591 mii_data = if_mii(rq);
2592 mii_data->phy_id = 0;
2595 mii_data = if_mii(rq);
2596 if (mii_data->phy_id != 0)
2599 mii_data->val_out = qeth_mdio_read(dev,
2603 case SIOC_QETH_QUERY_OAT:
2604 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
2610 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2614 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2616 int cast_type = RTN_UNSPEC;
2617 struct neighbour *n = NULL;
2618 struct dst_entry *dst;
2623 n = dst_neigh_lookup_skb(dst, skb);
2625 cast_type = n->type;
2628 if ((cast_type == RTN_BROADCAST) ||
2629 (cast_type == RTN_MULTICAST) ||
2630 (cast_type == RTN_ANYCAST))
2637 /* try something else */
2638 if (skb->protocol == ETH_P_IPV6)
2639 return (skb_network_header(skb)[24] == 0xff) ?
2641 else if (skb->protocol == ETH_P_IP)
2642 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2645 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2646 return RTN_BROADCAST;
2650 hdr_mac = *((u16 *)skb->data);
2652 switch (card->info.link_type) {
2653 case QETH_LINK_TYPE_HSTR:
2654 case QETH_LINK_TYPE_LANE_TR:
2655 if ((hdr_mac == QETH_TR_MAC_NC) ||
2656 (hdr_mac == QETH_TR_MAC_C))
2657 return RTN_MULTICAST;
2659 /* eth or so multicast? */
2661 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2662 (hdr_mac == QETH_ETH_MAC_V6))
2663 return RTN_MULTICAST;
2669 static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2670 struct qeth_hdr *hdr, struct sk_buff *skb)
2673 struct af_iucv_trans_hdr *iucv_hdr;
2676 card->dev->header_ops->create(skb, card->dev, 0,
2677 card->dev->dev_addr, card->dev->dev_addr,
2678 card->dev->addr_len);
2680 iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
2681 memset(hdr, 0, sizeof(struct qeth_hdr));
2682 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2683 hdr->hdr.l3.ext_flags = 0;
2684 hdr->hdr.l3.length = skb->len;
2685 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2686 memset(daddr, 0, sizeof(daddr));
2689 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2690 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2693 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2694 struct sk_buff *skb, int ipv, int cast_type)
2696 struct dst_entry *dst;
2698 memset(hdr, 0, sizeof(struct qeth_hdr));
2699 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2700 hdr->hdr.l3.ext_flags = 0;
2703 * before we're going to overwrite this location with next hop ip.
2704 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2706 if (skb_vlan_tag_present(skb)) {
2707 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2708 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2710 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2711 hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
2714 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2719 struct rtable *rt = (struct rtable *) dst;
2720 __be32 *pkey = &ip_hdr(skb)->daddr;
2723 pkey = &rt->rt_gateway;
2726 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2727 memset(hdr->hdr.l3.dest_addr, 0, 12);
2728 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
2729 } else if (ipv == 6) {
2730 struct rt6_info *rt = (struct rt6_info *) dst;
2731 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2733 if (!ipv6_addr_any(&rt->rt6i_gateway))
2734 pkey = &rt->rt6i_gateway;
2737 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2738 if (card->info.type == QETH_CARD_TYPE_IQD)
2739 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2740 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
2742 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2743 skb->dev->broadcast, 6)) {
2745 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2748 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2749 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2750 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2756 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2757 struct qeth_hdr *hdr, struct sk_buff *skb)
2759 struct iphdr *iph = ip_hdr(skb);
2761 /* tcph->check contains already the pseudo hdr checksum
2762 * so just set the header flags
2764 if (iph->protocol == IPPROTO_UDP)
2765 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2766 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2767 QETH_HDR_EXT_CSUM_HDR_REQ;
2769 if (card->options.performance_stats)
2770 card->perf_stats.tx_csum++;
2773 static void qeth_tso_fill_header(struct qeth_card *card,
2774 struct qeth_hdr *qhdr, struct sk_buff *skb)
2776 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2777 struct tcphdr *tcph = tcp_hdr(skb);
2778 struct iphdr *iph = ip_hdr(skb);
2779 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2781 /*fix header to TSO values ...*/
2782 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2783 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2784 /*set values which are fix for the first approach ...*/
2785 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2786 hdr->ext.imb_hdr_no = 1;
2787 hdr->ext.hdr_type = 1;
2788 hdr->ext.hdr_version = 1;
2789 hdr->ext.hdr_len = 28;
2790 /*insert non-fix values */
2791 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2792 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2793 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2794 sizeof(struct qeth_hdr_tso));
2796 if (skb->protocol == ETH_P_IPV6) {
2797 ip6h->payload_len = 0;
2798 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2801 /*OSA want us to set these values ...*/
2802 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2810 * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
2811 * @card: qeth card structure, to check max. elems.
2813 * @extra_elems: extra elems needed, to check against max.
2815 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
2816 * skb data, including linear part and fragments, but excluding TCP header.
2817 * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
2818 * Checks if the result plus extra_elems fits under the limit for the card.
2819 * Returns 0 if it does not.
2820 * Note: extra_elems is not included in the returned result.
2822 static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
2823 struct sk_buff *skb, int extra_elems)
2825 addr_t tcpdptr = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
2826 int elements = qeth_get_elements_for_range(
2828 (addr_t)skb->data + skb_headlen(skb)) +
2829 qeth_get_elements_for_frags(skb);
2831 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2833 "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
2834 elements + extra_elems, skb->len);
2840 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2844 struct qeth_hdr *hdr = NULL;
2845 int hdr_elements = 0;
2847 struct qeth_card *card = dev->ml_priv;
2848 struct sk_buff *new_skb = NULL;
2849 int ipv = qeth_get_ip_version(skb);
2850 int cast_type = qeth_l3_get_cast_type(card, skb);
2851 struct qeth_qdio_out_q *queue =
2852 card->qdio.out_qs[card->qdio.do_prio_queueing
2853 || (cast_type && card->info.is_multicast_different) ?
2854 qeth_get_priority_queue(card, skb, ipv, cast_type) :
2855 card->qdio.default_out_queue];
2856 int tx_bytes = skb->len;
2858 int data_offset = -1;
2861 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2862 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2863 ((card->options.cq == QETH_CQ_ENABLED) &&
2864 (skb->protocol != ETH_P_AF_IUCV)))) ||
2865 card->options.sniffer)
2868 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2869 card->stats.tx_carrier_errors++;
2873 if ((cast_type == RTN_BROADCAST) &&
2874 (card->info.broadcast_capable == 0))
2877 if (card->options.performance_stats) {
2878 card->perf_stats.outbound_cnt++;
2879 card->perf_stats.outbound_start_time = qeth_get_micros();
2882 /* Ignore segment size from skb_is_gso(), 1 page is always used. */
2883 use_tso = skb_is_gso(skb) &&
2884 (qeth_get_ip_protocol(skb) == IPPROTO_TCP) && (ipv == 4);
2886 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2887 !skb_is_nonlinear(skb)) {
2889 if (new_skb->protocol == ETH_P_AF_IUCV)
2892 data_offset = ETH_HLEN;
2893 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2898 /* create a clone with writeable headroom */
2899 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2905 if (card->info.type == QETH_CARD_TYPE_IQD) {
2906 if (data_offset < 0)
2907 skb_pull(new_skb, ETH_HLEN);
2910 skb_pull(new_skb, ETH_HLEN);
2913 if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
2914 skb_push(new_skb, VLAN_HLEN);
2915 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2916 skb_copy_to_linear_data_offset(new_skb, 4,
2917 new_skb->data + 8, 4);
2918 skb_copy_to_linear_data_offset(new_skb, 8,
2919 new_skb->data + 12, 4);
2920 tag = (u16 *)(new_skb->data + 12);
2921 *tag = __constant_htons(ETH_P_8021Q);
2922 *(tag + 1) = htons(skb_vlan_tag_get(new_skb));
2926 netif_stop_queue(dev);
2928 /* fix hardware limitation: as long as we do not have sbal
2929 * chaining we can not send long frag lists
2931 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
2932 ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) ||
2933 (!use_tso && !qeth_get_elements_no(card, new_skb, 0)))) {
2934 int lin_rc = skb_linearize(new_skb);
2936 if (card->options.performance_stats) {
2938 card->perf_stats.tx_linfail++;
2940 card->perf_stats.tx_lin++;
2947 hdr = (struct qeth_hdr *)skb_push(new_skb,
2948 sizeof(struct qeth_hdr_tso));
2949 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2950 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2951 qeth_tso_fill_header(card, hdr, new_skb);
2954 if (data_offset < 0) {
2955 hdr = (struct qeth_hdr *)skb_push(new_skb,
2956 sizeof(struct qeth_hdr));
2957 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2960 if (new_skb->protocol == ETH_P_AF_IUCV)
2961 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
2963 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2965 hdr->hdr.l3.length = new_skb->len - data_offset;
2969 if (skb->ip_summed == CHECKSUM_PARTIAL)
2970 qeth_l3_hdr_csum(card, hdr, new_skb);
2973 elements = use_tso ?
2974 qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) :
2975 qeth_get_elements_no(card, new_skb, hdr_elements);
2977 if (data_offset >= 0)
2978 kmem_cache_free(qeth_core_header_cache, hdr);
2981 elements += hdr_elements;
2983 if (card->info.type != QETH_CARD_TYPE_IQD) {
2986 len = ((unsigned long)tcp_hdr(new_skb) +
2987 tcp_hdrlen(new_skb)) -
2988 (unsigned long)new_skb->data;
2990 len = sizeof(struct qeth_hdr_layer3);
2992 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
2994 rc = qeth_do_send_packet(card, queue, new_skb, hdr, elements);
2996 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
2997 elements, data_offset, 0);
3000 card->stats.tx_packets++;
3001 card->stats.tx_bytes += tx_bytes;
3003 dev_kfree_skb_any(skb);
3004 if (card->options.performance_stats) {
3005 nr_frags = skb_shinfo(new_skb)->nr_frags;
3007 card->perf_stats.large_send_bytes += tx_bytes;
3008 card->perf_stats.large_send_cnt++;
3011 card->perf_stats.sg_skbs_sent++;
3012 /* nr_frags + skb->data */
3013 card->perf_stats.sg_frags_sent += nr_frags + 1;
3018 if (data_offset >= 0)
3019 kmem_cache_free(qeth_core_header_cache, hdr);
3023 dev_kfree_skb_any(new_skb);
3024 return NETDEV_TX_BUSY;
3029 netif_wake_queue(dev);
3030 if (card->options.performance_stats)
3031 card->perf_stats.outbound_time += qeth_get_micros() -
3032 card->perf_stats.outbound_start_time;
3036 card->stats.tx_dropped++;
3037 card->stats.tx_errors++;
3038 if ((new_skb != skb) && new_skb)
3039 dev_kfree_skb_any(new_skb);
3040 dev_kfree_skb_any(skb);
3041 netif_wake_queue(dev);
3042 return NETDEV_TX_OK;
3045 static int __qeth_l3_open(struct net_device *dev)
3047 struct qeth_card *card = dev->ml_priv;
3050 QETH_CARD_TEXT(card, 4, "qethopen");
3051 if (card->state == CARD_STATE_UP)
3053 if (card->state != CARD_STATE_SOFTSETUP)
3055 card->data.state = CH_STATE_UP;
3056 card->state = CARD_STATE_UP;
3057 netif_start_queue(dev);
3059 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3060 napi_enable(&card->napi);
3061 napi_schedule(&card->napi);
3067 static int qeth_l3_open(struct net_device *dev)
3069 struct qeth_card *card = dev->ml_priv;
3071 QETH_CARD_TEXT(card, 5, "qethope_");
3072 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3073 QETH_CARD_TEXT(card, 3, "openREC");
3074 return -ERESTARTSYS;
3076 return __qeth_l3_open(dev);
3079 static int qeth_l3_stop(struct net_device *dev)
3081 struct qeth_card *card = dev->ml_priv;
3083 QETH_CARD_TEXT(card, 4, "qethstop");
3084 netif_tx_disable(dev);
3085 if (card->state == CARD_STATE_UP) {
3086 card->state = CARD_STATE_SOFTSETUP;
3087 napi_disable(&card->napi);
3092 static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
3093 netdev_features_t features)
3095 struct qeth_card *card = dev->ml_priv;
3097 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3098 features &= ~NETIF_F_IP_CSUM;
3099 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3100 features &= ~NETIF_F_TSO;
3101 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3102 features &= ~NETIF_F_RXCSUM;
3106 static int qeth_l3_set_features(struct net_device *dev,
3107 netdev_features_t features)
3109 struct qeth_card *card = dev->ml_priv;
3110 netdev_features_t changed = dev->features ^ features;
3112 if (!(changed & NETIF_F_RXCSUM))
3115 if (card->state == CARD_STATE_DOWN ||
3116 card->state == CARD_STATE_RECOVER)
3119 return qeth_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0);
3122 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3123 .get_link = ethtool_op_get_link,
3124 .get_strings = qeth_core_get_strings,
3125 .get_ethtool_stats = qeth_core_get_ethtool_stats,
3126 .get_sset_count = qeth_core_get_sset_count,
3127 .get_drvinfo = qeth_core_get_drvinfo,
3128 .get_settings = qeth_core_ethtool_get_settings,
3132 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3133 * NOARP on the netdevice is no option because it also turns off neighbor
3134 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3135 * arp resolution but we want the hard header (packet socket will work
3138 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3140 n->nud_state = NUD_NOARP;
3141 memcpy(n->ha, "FAKELL", 6);
3142 n->output = n->ops->connected_output;
3147 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3149 if (np->tbl->family == AF_INET)
3150 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3155 static const struct net_device_ops qeth_l3_netdev_ops = {
3156 .ndo_open = qeth_l3_open,
3157 .ndo_stop = qeth_l3_stop,
3158 .ndo_get_stats = qeth_get_stats,
3159 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3160 .ndo_validate_addr = eth_validate_addr,
3161 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3162 .ndo_do_ioctl = qeth_l3_do_ioctl,
3163 .ndo_change_mtu = qeth_change_mtu,
3164 .ndo_fix_features = qeth_l3_fix_features,
3165 .ndo_set_features = qeth_l3_set_features,
3166 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3167 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3168 .ndo_tx_timeout = qeth_tx_timeout,
3171 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3172 .ndo_open = qeth_l3_open,
3173 .ndo_stop = qeth_l3_stop,
3174 .ndo_get_stats = qeth_get_stats,
3175 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3176 .ndo_validate_addr = eth_validate_addr,
3177 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3178 .ndo_do_ioctl = qeth_l3_do_ioctl,
3179 .ndo_change_mtu = qeth_change_mtu,
3180 .ndo_fix_features = qeth_l3_fix_features,
3181 .ndo_set_features = qeth_l3_set_features,
3182 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3183 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3184 .ndo_tx_timeout = qeth_tx_timeout,
3185 .ndo_neigh_setup = qeth_l3_neigh_setup,
3188 static int qeth_l3_setup_netdev(struct qeth_card *card)
3192 if (card->info.type == QETH_CARD_TYPE_OSD ||
3193 card->info.type == QETH_CARD_TYPE_OSX) {
3194 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3195 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3196 pr_info("qeth_l3: ignoring TR device\n");
3199 card->dev = alloc_etherdev(0);
3202 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3204 /*IPv6 address autoconfiguration stuff*/
3205 qeth_l3_get_unique_id(card);
3206 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3207 card->dev->dev_id = card->info.unique_id &
3209 if (!card->info.guestlan) {
3210 card->dev->hw_features = NETIF_F_SG |
3211 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3213 card->dev->features = NETIF_F_RXCSUM |
3217 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3218 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
3222 card->dev->flags |= IFF_NOARP;
3223 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3224 rc = qeth_l3_iqd_read_initial_mac(card);
3227 if (card->options.hsuid[0])
3228 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
3232 card->dev->ml_priv = card;
3233 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3234 card->dev->mtu = card->info.initial_mtu;
3235 card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
3236 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
3237 NETIF_F_HW_VLAN_CTAG_RX |
3238 NETIF_F_HW_VLAN_CTAG_FILTER;
3239 netif_keep_dst(card->dev);
3240 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
3242 card->dev->gso_max_segs = (QETH_MAX_BUFFER_ELEMENTS(card) - 1);
3244 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3245 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3246 netif_carrier_off(card->dev);
3247 return register_netdev(card->dev);
3250 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3252 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3254 qeth_l3_create_device_attributes(&gdev->dev);
3255 card->options.layer2 = 0;
3256 card->info.hwtrap = 0;
3260 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3262 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3264 qeth_l3_remove_device_attributes(&cgdev->dev);
3266 qeth_set_allowed_threads(card, 0, 1);
3267 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3269 if (cgdev->state == CCWGROUP_ONLINE)
3270 qeth_l3_set_offline(cgdev);
3273 unregister_netdev(card->dev);
3277 qeth_l3_clear_ip_htable(card, 0);
3278 qeth_l3_clear_ipato_list(card);
3282 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3284 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3286 enum qeth_card_states recover_flag;
3288 mutex_lock(&card->discipline_mutex);
3289 mutex_lock(&card->conf_mutex);
3290 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3291 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3293 recover_flag = card->state;
3294 rc = qeth_core_hardsetup_card(card);
3296 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3301 if (!card->dev && qeth_l3_setup_netdev(card)) {
3306 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3307 if (card->info.hwtrap &&
3308 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3309 card->info.hwtrap = 0;
3311 card->info.hwtrap = 0;
3313 card->state = CARD_STATE_HARDSETUP;
3314 memset(&card->rx, 0, sizeof(struct qeth_rx));
3315 qeth_print_status_message(card);
3318 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3320 rc = qeth_send_startlan(card);
3322 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3324 dev_warn(&card->gdev->dev,
3325 "The LAN is offline\n");
3326 card->lan_online = 0;
3332 card->lan_online = 1;
3335 rc = qeth_l3_setadapter_parms(card);
3337 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3338 if (!card->options.sniffer) {
3339 rc = qeth_l3_start_ipassists(card);
3341 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3344 rc = qeth_l3_setrouting_v4(card);
3346 QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
3347 rc = qeth_l3_setrouting_v6(card);
3349 QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
3351 netif_tx_disable(card->dev);
3353 rc = qeth_init_qdio_queues(card);
3355 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3359 card->state = CARD_STATE_SOFTSETUP;
3361 qeth_set_allowed_threads(card, 0xffffffff, 0);
3362 qeth_l3_recover_ip(card);
3363 if (card->lan_online)
3364 netif_carrier_on(card->dev);
3366 netif_carrier_off(card->dev);
3367 if (recover_flag == CARD_STATE_RECOVER) {
3370 __qeth_l3_open(card->dev);
3372 dev_open(card->dev);
3373 qeth_l3_set_multicast_list(card->dev);
3376 qeth_trace_features(card);
3377 /* let user_space know that device is online */
3378 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3379 mutex_unlock(&card->conf_mutex);
3380 mutex_unlock(&card->discipline_mutex);
3383 qeth_l3_stop_card(card, 0);
3384 ccw_device_set_offline(CARD_DDEV(card));
3385 ccw_device_set_offline(CARD_WDEV(card));
3386 ccw_device_set_offline(CARD_RDEV(card));
3387 qdio_free(CARD_DDEV(card));
3388 if (recover_flag == CARD_STATE_RECOVER)
3389 card->state = CARD_STATE_RECOVER;
3391 card->state = CARD_STATE_DOWN;
3392 mutex_unlock(&card->conf_mutex);
3393 mutex_unlock(&card->discipline_mutex);
3397 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3399 return __qeth_l3_set_online(gdev, 0);
3402 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3405 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3406 int rc = 0, rc2 = 0, rc3 = 0;
3407 enum qeth_card_states recover_flag;
3409 mutex_lock(&card->discipline_mutex);
3410 mutex_lock(&card->conf_mutex);
3411 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3412 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3414 if (card->dev && netif_carrier_ok(card->dev))
3415 netif_carrier_off(card->dev);
3416 recover_flag = card->state;
3417 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3418 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3419 card->info.hwtrap = 1;
3421 qeth_l3_stop_card(card, recovery_mode);
3422 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3424 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3427 rc = ccw_device_set_offline(CARD_DDEV(card));
3428 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3429 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3431 rc = (rc2) ? rc2 : rc3;
3433 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3434 qdio_free(CARD_DDEV(card));
3435 if (recover_flag == CARD_STATE_UP)
3436 card->state = CARD_STATE_RECOVER;
3437 /* let user_space know that device is offline */
3438 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3439 mutex_unlock(&card->conf_mutex);
3440 mutex_unlock(&card->discipline_mutex);
3444 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3446 return __qeth_l3_set_offline(cgdev, 0);
3449 static int qeth_l3_recover(void *ptr)
3451 struct qeth_card *card;
3454 card = (struct qeth_card *) ptr;
3455 QETH_CARD_TEXT(card, 2, "recover1");
3456 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3457 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3459 QETH_CARD_TEXT(card, 2, "recover2");
3460 dev_warn(&card->gdev->dev,
3461 "A recovery process has been started for the device\n");
3462 qeth_set_recovery_task(card);
3463 __qeth_l3_set_offline(card->gdev, 1);
3464 rc = __qeth_l3_set_online(card->gdev, 1);
3466 dev_info(&card->gdev->dev,
3467 "Device successfully recovered!\n");
3469 qeth_close_dev(card);
3470 dev_warn(&card->gdev->dev, "The qeth device driver "
3471 "failed to recover an error on the device\n");
3473 qeth_clear_recovery_task(card);
3474 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3475 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3479 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3481 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3482 qeth_set_allowed_threads(card, 0, 1);
3483 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3484 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3485 qeth_qdio_clear_card(card, 0);
3486 qeth_clear_qdio_buffers(card);
3487 qdio_free(CARD_DDEV(card));
3490 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3492 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3495 netif_device_detach(card->dev);
3496 qeth_set_allowed_threads(card, 0, 1);
3497 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3498 if (gdev->state == CCWGROUP_OFFLINE)
3500 if (card->state == CARD_STATE_UP) {
3501 if (card->info.hwtrap)
3502 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3503 __qeth_l3_set_offline(card->gdev, 1);
3505 __qeth_l3_set_offline(card->gdev, 0);
3509 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3511 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3514 if (gdev->state == CCWGROUP_OFFLINE)
3517 if (card->state == CARD_STATE_RECOVER) {
3518 rc = __qeth_l3_set_online(card->gdev, 1);
3521 dev_close(card->dev);
3525 rc = __qeth_l3_set_online(card->gdev, 0);
3527 qeth_set_allowed_threads(card, 0xffffffff, 0);
3529 netif_device_attach(card->dev);
3531 dev_warn(&card->gdev->dev, "The qeth device driver "
3532 "failed to recover an error on the device\n");
3536 /* Returns zero if the command is successfully "consumed" */
3537 static int qeth_l3_control_event(struct qeth_card *card,
3538 struct qeth_ipa_cmd *cmd)
3543 struct qeth_discipline qeth_l3_discipline = {
3544 .start_poll = qeth_qdio_start_poll,
3545 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3546 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3547 .recover = qeth_l3_recover,
3548 .setup = qeth_l3_probe_device,
3549 .remove = qeth_l3_remove_device,
3550 .set_online = qeth_l3_set_online,
3551 .set_offline = qeth_l3_set_offline,
3552 .shutdown = qeth_l3_shutdown,
3553 .freeze = qeth_l3_pm_suspend,
3554 .thaw = qeth_l3_pm_resume,
3555 .restore = qeth_l3_pm_resume,
3556 .control_event_handler = qeth_l3_control_event,
3558 EXPORT_SYMBOL_GPL(qeth_l3_discipline);
3560 static int qeth_l3_ip_event(struct notifier_block *this,
3561 unsigned long event, void *ptr)
3564 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3565 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3566 struct qeth_ipaddr *addr;
3567 struct qeth_card *card;
3569 if (dev_net(dev) != &init_net)
3572 card = qeth_l3_get_card_from_dev(dev);
3575 QETH_CARD_TEXT(card, 3, "ipevent");
3577 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3579 addr->u.a4.addr = ifa->ifa_address;
3580 addr->u.a4.mask = ifa->ifa_mask;
3581 addr->type = QETH_IP_TYPE_NORMAL;
3587 spin_lock_bh(&card->ip_lock);
3588 qeth_l3_add_ip(card, addr);
3589 spin_unlock_bh(&card->ip_lock);
3592 spin_lock_bh(&card->ip_lock);
3593 qeth_l3_delete_ip(card, addr);
3594 spin_unlock_bh(&card->ip_lock);
3602 static struct notifier_block qeth_l3_ip_notifier = {
3607 #ifdef CONFIG_QETH_IPV6
3609 * IPv6 event handler
3611 static int qeth_l3_ip6_event(struct notifier_block *this,
3612 unsigned long event, void *ptr)
3614 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3615 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3616 struct qeth_ipaddr *addr;
3617 struct qeth_card *card;
3619 card = qeth_l3_get_card_from_dev(dev);
3622 QETH_CARD_TEXT(card, 3, "ip6event");
3623 if (!qeth_is_supported(card, IPA_IPV6))
3626 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3628 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3629 addr->u.a6.pfxlen = ifa->prefix_len;
3630 addr->type = QETH_IP_TYPE_NORMAL;
3636 spin_lock_bh(&card->ip_lock);
3637 qeth_l3_add_ip(card, addr);
3638 spin_unlock_bh(&card->ip_lock);
3641 spin_lock_bh(&card->ip_lock);
3642 qeth_l3_delete_ip(card, addr);
3643 spin_unlock_bh(&card->ip_lock);
3651 static struct notifier_block qeth_l3_ip6_notifier = {
3657 static int qeth_l3_register_notifiers(void)
3661 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3662 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3665 #ifdef CONFIG_QETH_IPV6
3666 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3668 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3672 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
3677 static void qeth_l3_unregister_notifiers(void)
3680 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3681 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3682 #ifdef CONFIG_QETH_IPV6
3683 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3684 #endif /* QETH_IPV6 */
3687 static int __init qeth_l3_init(void)
3691 pr_info("register layer 3 discipline\n");
3692 rc = qeth_l3_register_notifiers();
3696 static void __exit qeth_l3_exit(void)
3698 qeth_l3_unregister_notifiers();
3699 pr_info("unregister layer 3 discipline\n");
3702 module_init(qeth_l3_init);
3703 module_exit(qeth_l3_exit);
3704 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3705 MODULE_DESCRIPTION("qeth layer 3 discipline");
3706 MODULE_LICENSE("GPL");