2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/bitops.h>
15 #include <linux/string.h>
16 #include <linux/errno.h>
17 #include <linux/kernel.h>
18 #include <linux/etherdevice.h>
20 #include <linux/ipv6.h>
21 #include <linux/inetdevice.h>
22 #include <linux/igmp.h>
23 #include <linux/slab.h>
24 #include <linux/if_vlan.h>
28 #include <net/route.h>
29 #include <net/ip6_fib.h>
30 #include <net/ip6_checksum.h>
31 #include <net/iucv/af_iucv.h>
32 #include <linux/hashtable.h>
37 static int qeth_l3_set_offline(struct ccwgroup_device
*);
38 static int qeth_l3_stop(struct net_device
*);
39 static void qeth_l3_set_multicast_list(struct net_device
*);
40 static int qeth_l3_register_addr_entry(struct qeth_card
*,
41 struct qeth_ipaddr
*);
42 static int qeth_l3_deregister_addr_entry(struct qeth_card
*,
43 struct qeth_ipaddr
*);
45 static int qeth_l3_isxdigit(char *buf
)
48 if (!isxdigit(*buf
++))
54 static void qeth_l3_ipaddr4_to_string(const __u8
*addr
, char *buf
)
56 sprintf(buf
, "%pI4", addr
);
59 static int qeth_l3_string_to_ipaddr4(const char *buf
, __u8
*addr
)
61 int count
= 0, rc
= 0;
65 rc
= sscanf(buf
, "%u.%u.%u.%u%c",
66 &in
[0], &in
[1], &in
[2], &in
[3], &c
);
67 if (rc
!= 4 && (rc
!= 5 || c
!= '\n'))
69 for (count
= 0; count
< 4; count
++) {
72 addr
[count
] = in
[count
];
77 static void qeth_l3_ipaddr6_to_string(const __u8
*addr
, char *buf
)
79 sprintf(buf
, "%pI6", addr
);
82 static int qeth_l3_string_to_ipaddr6(const char *buf
, __u8
*addr
)
84 const char *end
, *end_tmp
, *start
;
87 int num2
, cnt
, out
, found
, save_cnt
;
88 unsigned short in_tmp
[8] = {0, };
90 cnt
= out
= found
= save_cnt
= num2
= 0;
95 end
= strchr(start
, ':');
97 end
= buf
+ strlen(buf
);
98 end_tmp
= strchr(start
, '\n');
105 if ((end
- start
) > 4)
107 memcpy(num
, start
, end
- start
);
108 if (!qeth_l3_isxdigit(num
))
110 sscanf(start
, "%x", &num2
);
112 in_tmp
[save_cnt
++] = num2
;
124 if (cnt
+ save_cnt
> 8)
128 in
[cnt
--] = in_tmp
[--save_cnt
];
132 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto
, const __u8
*addr
,
135 if (proto
== QETH_PROT_IPV4
)
136 qeth_l3_ipaddr4_to_string(addr
, buf
);
137 else if (proto
== QETH_PROT_IPV6
)
138 qeth_l3_ipaddr6_to_string(addr
, buf
);
141 int qeth_l3_string_to_ipaddr(const char *buf
, enum qeth_prot_versions proto
,
144 if (proto
== QETH_PROT_IPV4
)
145 return qeth_l3_string_to_ipaddr4(buf
, addr
);
146 else if (proto
== QETH_PROT_IPV6
)
147 return qeth_l3_string_to_ipaddr6(buf
, addr
);
152 static void qeth_l3_convert_addr_to_bits(u8
*addr
, u8
*bits
, int len
)
157 for (i
= 0; i
< len
; ++i
) {
159 for (j
= 7; j
>= 0; --j
) {
160 bits
[i
*8 + j
] = octet
& 1;
166 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card
*card
,
167 struct qeth_ipaddr
*addr
)
169 struct qeth_ipato_entry
*ipatoe
;
170 u8 addr_bits
[128] = {0, };
171 u8 ipatoe_bits
[128] = {0, };
174 if (!card
->ipato
.enabled
)
177 qeth_l3_convert_addr_to_bits((u8
*) &addr
->u
, addr_bits
,
178 (addr
->proto
== QETH_PROT_IPV4
)? 4:16);
179 list_for_each_entry(ipatoe
, &card
->ipato
.entries
, entry
) {
180 if (addr
->proto
!= ipatoe
->proto
)
182 qeth_l3_convert_addr_to_bits(ipatoe
->addr
, ipatoe_bits
,
183 (ipatoe
->proto
== QETH_PROT_IPV4
) ?
185 if (addr
->proto
== QETH_PROT_IPV4
)
186 rc
= !memcmp(addr_bits
, ipatoe_bits
,
187 min(32, ipatoe
->mask_bits
));
189 rc
= !memcmp(addr_bits
, ipatoe_bits
,
190 min(128, ipatoe
->mask_bits
));
195 if ((addr
->proto
== QETH_PROT_IPV4
) && card
->ipato
.invert4
)
197 else if ((addr
->proto
== QETH_PROT_IPV6
) && card
->ipato
.invert6
)
204 qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr
*addr1
, struct qeth_ipaddr
*addr2
)
206 return addr1
->proto
== addr2
->proto
&&
207 !memcmp(&addr1
->u
, &addr2
->u
, sizeof(addr1
->u
)) &&
208 !memcmp(&addr1
->mac
, &addr2
->mac
, sizeof(addr1
->mac
));
211 static struct qeth_ipaddr
*
212 qeth_l3_ip_from_hash(struct qeth_card
*card
, struct qeth_ipaddr
*tmp_addr
)
214 struct qeth_ipaddr
*addr
;
216 if (tmp_addr
->is_multicast
) {
217 hash_for_each_possible(card
->ip_mc_htable
, addr
,
218 hnode
, qeth_l3_ipaddr_hash(tmp_addr
))
219 if (qeth_l3_ipaddrs_is_equal(tmp_addr
, addr
))
222 hash_for_each_possible(card
->ip_htable
, addr
,
223 hnode
, qeth_l3_ipaddr_hash(tmp_addr
))
224 if (qeth_l3_ipaddrs_is_equal(tmp_addr
, addr
))
231 int qeth_l3_delete_ip(struct qeth_card
*card
, struct qeth_ipaddr
*tmp_addr
)
234 struct qeth_ipaddr
*addr
;
236 QETH_CARD_TEXT(card
, 4, "delip");
238 if (tmp_addr
->proto
== QETH_PROT_IPV4
)
239 QETH_CARD_HEX(card
, 4, &tmp_addr
->u
.a4
.addr
, 4);
241 QETH_CARD_HEX(card
, 4, &tmp_addr
->u
.a6
.addr
, 8);
242 QETH_CARD_HEX(card
, 4, ((char *)&tmp_addr
->u
.a6
.addr
) + 8, 8);
245 addr
= qeth_l3_ip_from_hash(card
, tmp_addr
);
250 if (addr
->type
== QETH_IP_TYPE_NORMAL
&& addr
->ref_counter
> 0)
252 if (addr
->in_progress
)
255 if (!qeth_card_hw_is_reachable(card
)) {
256 addr
->disp_flag
= QETH_DISP_ADDR_DELETE
;
260 rc
= qeth_l3_deregister_addr_entry(card
, addr
);
262 hash_del(&addr
->hnode
);
268 int qeth_l3_add_ip(struct qeth_card
*card
, struct qeth_ipaddr
*tmp_addr
)
271 struct qeth_ipaddr
*addr
;
273 QETH_CARD_TEXT(card
, 4, "addip");
275 if (tmp_addr
->proto
== QETH_PROT_IPV4
)
276 QETH_CARD_HEX(card
, 4, &tmp_addr
->u
.a4
.addr
, 4);
278 QETH_CARD_HEX(card
, 4, &tmp_addr
->u
.a6
.addr
, 8);
279 QETH_CARD_HEX(card
, 4, ((char *)&tmp_addr
->u
.a6
.addr
) + 8, 8);
282 addr
= qeth_l3_ip_from_hash(card
, tmp_addr
);
284 addr
= qeth_l3_get_addr_buffer(tmp_addr
->proto
);
288 memcpy(addr
, tmp_addr
, sizeof(struct qeth_ipaddr
));
289 addr
->ref_counter
= 1;
291 if (addr
->type
== QETH_IP_TYPE_NORMAL
&&
292 qeth_l3_is_addr_covered_by_ipato(card
, addr
)) {
293 QETH_CARD_TEXT(card
, 2, "tkovaddr");
294 addr
->set_flags
|= QETH_IPA_SETIP_TAKEOVER_FLAG
;
296 hash_add(card
->ip_htable
, &addr
->hnode
,
297 qeth_l3_ipaddr_hash(addr
));
299 if (!qeth_card_hw_is_reachable(card
)) {
300 addr
->disp_flag
= QETH_DISP_ADDR_ADD
;
304 /* qeth_l3_register_addr_entry can go to sleep
305 * if we add a IPV4 addr. It is caused by the reason
306 * that SETIP ipa cmd starts ARP staff for IPV4 addr.
307 * Thus we should unlock spinlock, and make a protection
308 * using in_progress variable to indicate that there is
309 * an hardware operation with this IPV4 address
311 if (addr
->proto
== QETH_PROT_IPV4
) {
312 addr
->in_progress
= 1;
313 spin_unlock_bh(&card
->ip_lock
);
314 rc
= qeth_l3_register_addr_entry(card
, addr
);
315 spin_lock_bh(&card
->ip_lock
);
316 addr
->in_progress
= 0;
318 rc
= qeth_l3_register_addr_entry(card
, addr
);
320 if (!rc
|| (rc
== IPA_RC_DUPLICATE_IP_ADDRESS
) ||
321 (rc
== IPA_RC_LAN_OFFLINE
)) {
322 addr
->disp_flag
= QETH_DISP_ADDR_DO_NOTHING
;
323 if (addr
->ref_counter
< 1) {
324 qeth_l3_delete_ip(card
, addr
);
328 hash_del(&addr
->hnode
);
332 if (addr
->type
== QETH_IP_TYPE_NORMAL
)
340 struct qeth_ipaddr
*qeth_l3_get_addr_buffer(
341 enum qeth_prot_versions prot
)
343 struct qeth_ipaddr
*addr
;
345 addr
= kzalloc(sizeof(struct qeth_ipaddr
), GFP_ATOMIC
);
349 addr
->type
= QETH_IP_TYPE_NORMAL
;
350 addr
->disp_flag
= QETH_DISP_ADDR_DO_NOTHING
;
356 static void qeth_l3_clear_ip_htable(struct qeth_card
*card
, int recover
)
358 struct qeth_ipaddr
*addr
;
359 struct hlist_node
*tmp
;
362 QETH_CARD_TEXT(card
, 4, "clearip");
364 if (recover
&& card
->options
.sniffer
)
367 spin_lock_bh(&card
->ip_lock
);
369 hash_for_each_safe(card
->ip_htable
, i
, tmp
, addr
, hnode
) {
371 hash_del(&addr
->hnode
);
375 addr
->disp_flag
= QETH_DISP_ADDR_ADD
;
378 spin_unlock_bh(&card
->ip_lock
);
380 spin_lock_bh(&card
->mclock
);
382 hash_for_each_safe(card
->ip_mc_htable
, i
, tmp
, addr
, hnode
) {
383 hash_del(&addr
->hnode
);
387 spin_unlock_bh(&card
->mclock
);
391 static void qeth_l3_recover_ip(struct qeth_card
*card
)
393 struct qeth_ipaddr
*addr
;
394 struct hlist_node
*tmp
;
398 QETH_CARD_TEXT(card
, 4, "recovrip");
400 spin_lock_bh(&card
->ip_lock
);
402 hash_for_each_safe(card
->ip_htable
, i
, tmp
, addr
, hnode
) {
403 if (addr
->disp_flag
== QETH_DISP_ADDR_DELETE
) {
404 qeth_l3_deregister_addr_entry(card
, addr
);
405 hash_del(&addr
->hnode
);
407 } else if (addr
->disp_flag
== QETH_DISP_ADDR_ADD
) {
408 if (addr
->proto
== QETH_PROT_IPV4
) {
409 addr
->in_progress
= 1;
410 spin_unlock_bh(&card
->ip_lock
);
411 rc
= qeth_l3_register_addr_entry(card
, addr
);
412 spin_lock_bh(&card
->ip_lock
);
413 addr
->in_progress
= 0;
415 rc
= qeth_l3_register_addr_entry(card
, addr
);
418 addr
->disp_flag
= QETH_DISP_ADDR_DO_NOTHING
;
419 if (addr
->ref_counter
< 1)
420 qeth_l3_delete_ip(card
, addr
);
422 hash_del(&addr
->hnode
);
428 spin_unlock_bh(&card
->ip_lock
);
432 static int qeth_l3_send_setdelmc(struct qeth_card
*card
,
433 struct qeth_ipaddr
*addr
, int ipacmd
)
436 struct qeth_cmd_buffer
*iob
;
437 struct qeth_ipa_cmd
*cmd
;
439 QETH_CARD_TEXT(card
, 4, "setdelmc");
441 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, addr
->proto
);
444 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
445 memcpy(&cmd
->data
.setdelipm
.mac
, addr
->mac
, OSA_ADDR_LEN
);
446 if (addr
->proto
== QETH_PROT_IPV6
)
447 memcpy(cmd
->data
.setdelipm
.ip6
, &addr
->u
.a6
.addr
,
448 sizeof(struct in6_addr
));
450 memcpy(&cmd
->data
.setdelipm
.ip4
, &addr
->u
.a4
.addr
, 4);
452 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
457 static void qeth_l3_fill_netmask(u8
*netmask
, unsigned int len
)
460 for (i
= 0; i
< 16; i
++) {
465 netmask
[i
] = (u8
)(0xFF00 >> j
);
471 static int qeth_l3_send_setdelip(struct qeth_card
*card
,
472 struct qeth_ipaddr
*addr
, int ipacmd
, unsigned int flags
)
475 struct qeth_cmd_buffer
*iob
;
476 struct qeth_ipa_cmd
*cmd
;
479 QETH_CARD_TEXT(card
, 4, "setdelip");
480 QETH_CARD_TEXT_(card
, 4, "flags%02X", flags
);
482 iob
= qeth_get_ipacmd_buffer(card
, ipacmd
, addr
->proto
);
485 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
486 if (addr
->proto
== QETH_PROT_IPV6
) {
487 memcpy(cmd
->data
.setdelip6
.ip_addr
, &addr
->u
.a6
.addr
,
488 sizeof(struct in6_addr
));
489 qeth_l3_fill_netmask(netmask
, addr
->u
.a6
.pfxlen
);
490 memcpy(cmd
->data
.setdelip6
.mask
, netmask
,
491 sizeof(struct in6_addr
));
492 cmd
->data
.setdelip6
.flags
= flags
;
494 memcpy(cmd
->data
.setdelip4
.ip_addr
, &addr
->u
.a4
.addr
, 4);
495 memcpy(cmd
->data
.setdelip4
.mask
, &addr
->u
.a4
.mask
, 4);
496 cmd
->data
.setdelip4
.flags
= flags
;
499 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
504 static int qeth_l3_send_setrouting(struct qeth_card
*card
,
505 enum qeth_routing_types type
, enum qeth_prot_versions prot
)
508 struct qeth_ipa_cmd
*cmd
;
509 struct qeth_cmd_buffer
*iob
;
511 QETH_CARD_TEXT(card
, 4, "setroutg");
512 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SETRTG
, prot
);
515 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
516 cmd
->data
.setrtg
.type
= (type
);
517 rc
= qeth_send_ipa_cmd(card
, iob
, NULL
, NULL
);
522 static int qeth_l3_correct_routing_type(struct qeth_card
*card
,
523 enum qeth_routing_types
*type
, enum qeth_prot_versions prot
)
525 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
528 case PRIMARY_CONNECTOR
:
529 case SECONDARY_CONNECTOR
:
530 case MULTICAST_ROUTER
:
539 case SECONDARY_ROUTER
:
541 case MULTICAST_ROUTER
:
542 if (qeth_is_ipafunc_supported(card
, prot
,
554 int qeth_l3_setrouting_v4(struct qeth_card
*card
)
558 QETH_CARD_TEXT(card
, 3, "setrtg4");
560 rc
= qeth_l3_correct_routing_type(card
, &card
->options
.route4
.type
,
565 rc
= qeth_l3_send_setrouting(card
, card
->options
.route4
.type
,
568 card
->options
.route4
.type
= NO_ROUTER
;
569 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
570 " on %s. Type set to 'no router'.\n", rc
,
571 QETH_CARD_IFNAME(card
));
576 int qeth_l3_setrouting_v6(struct qeth_card
*card
)
580 QETH_CARD_TEXT(card
, 3, "setrtg6");
581 #ifdef CONFIG_QETH_IPV6
583 if (!qeth_is_supported(card
, IPA_IPV6
))
585 rc
= qeth_l3_correct_routing_type(card
, &card
->options
.route6
.type
,
590 rc
= qeth_l3_send_setrouting(card
, card
->options
.route6
.type
,
593 card
->options
.route6
.type
= NO_ROUTER
;
594 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
595 " on %s. Type set to 'no router'.\n", rc
,
596 QETH_CARD_IFNAME(card
));
603 * IP address takeover related functions
605 static void qeth_l3_clear_ipato_list(struct qeth_card
*card
)
607 struct qeth_ipato_entry
*ipatoe
, *tmp
;
609 spin_lock_bh(&card
->ip_lock
);
611 list_for_each_entry_safe(ipatoe
, tmp
, &card
->ipato
.entries
, entry
) {
612 list_del(&ipatoe
->entry
);
616 spin_unlock_bh(&card
->ip_lock
);
619 int qeth_l3_add_ipato_entry(struct qeth_card
*card
,
620 struct qeth_ipato_entry
*new)
622 struct qeth_ipato_entry
*ipatoe
;
625 QETH_CARD_TEXT(card
, 2, "addipato");
627 spin_lock_bh(&card
->ip_lock
);
629 list_for_each_entry(ipatoe
, &card
->ipato
.entries
, entry
) {
630 if (ipatoe
->proto
!= new->proto
)
632 if (!memcmp(ipatoe
->addr
, new->addr
,
633 (ipatoe
->proto
== QETH_PROT_IPV4
)? 4:16) &&
634 (ipatoe
->mask_bits
== new->mask_bits
)) {
641 list_add_tail(&new->entry
, &card
->ipato
.entries
);
643 spin_unlock_bh(&card
->ip_lock
);
648 void qeth_l3_del_ipato_entry(struct qeth_card
*card
,
649 enum qeth_prot_versions proto
, u8
*addr
, int mask_bits
)
651 struct qeth_ipato_entry
*ipatoe
, *tmp
;
653 QETH_CARD_TEXT(card
, 2, "delipato");
655 spin_lock_bh(&card
->ip_lock
);
657 list_for_each_entry_safe(ipatoe
, tmp
, &card
->ipato
.entries
, entry
) {
658 if (ipatoe
->proto
!= proto
)
660 if (!memcmp(ipatoe
->addr
, addr
,
661 (proto
== QETH_PROT_IPV4
)? 4:16) &&
662 (ipatoe
->mask_bits
== mask_bits
)) {
663 list_del(&ipatoe
->entry
);
668 spin_unlock_bh(&card
->ip_lock
);
672 * VIPA related functions
674 int qeth_l3_add_vipa(struct qeth_card
*card
, enum qeth_prot_versions proto
,
677 struct qeth_ipaddr
*ipaddr
;
680 ipaddr
= qeth_l3_get_addr_buffer(proto
);
682 if (proto
== QETH_PROT_IPV4
) {
683 QETH_CARD_TEXT(card
, 2, "addvipa4");
684 memcpy(&ipaddr
->u
.a4
.addr
, addr
, 4);
685 ipaddr
->u
.a4
.mask
= 0;
686 } else if (proto
== QETH_PROT_IPV6
) {
687 QETH_CARD_TEXT(card
, 2, "addvipa6");
688 memcpy(&ipaddr
->u
.a6
.addr
, addr
, 16);
689 ipaddr
->u
.a6
.pfxlen
= 0;
691 ipaddr
->type
= QETH_IP_TYPE_VIPA
;
692 ipaddr
->set_flags
= QETH_IPA_SETIP_VIPA_FLAG
;
693 ipaddr
->del_flags
= QETH_IPA_DELIP_VIPA_FLAG
;
697 spin_lock_bh(&card
->ip_lock
);
699 if (qeth_l3_ip_from_hash(card
, ipaddr
))
702 qeth_l3_add_ip(card
, ipaddr
);
704 spin_unlock_bh(&card
->ip_lock
);
711 void qeth_l3_del_vipa(struct qeth_card
*card
, enum qeth_prot_versions proto
,
714 struct qeth_ipaddr
*ipaddr
;
716 ipaddr
= qeth_l3_get_addr_buffer(proto
);
718 if (proto
== QETH_PROT_IPV4
) {
719 QETH_CARD_TEXT(card
, 2, "delvipa4");
720 memcpy(&ipaddr
->u
.a4
.addr
, addr
, 4);
721 ipaddr
->u
.a4
.mask
= 0;
722 } else if (proto
== QETH_PROT_IPV6
) {
723 QETH_CARD_TEXT(card
, 2, "delvipa6");
724 memcpy(&ipaddr
->u
.a6
.addr
, addr
, 16);
725 ipaddr
->u
.a6
.pfxlen
= 0;
727 ipaddr
->type
= QETH_IP_TYPE_VIPA
;
731 spin_lock_bh(&card
->ip_lock
);
732 qeth_l3_delete_ip(card
, ipaddr
);
733 spin_unlock_bh(&card
->ip_lock
);
739 * proxy ARP related functions
741 int qeth_l3_add_rxip(struct qeth_card
*card
, enum qeth_prot_versions proto
,
744 struct qeth_ipaddr
*ipaddr
;
747 ipaddr
= qeth_l3_get_addr_buffer(proto
);
749 if (proto
== QETH_PROT_IPV4
) {
750 QETH_CARD_TEXT(card
, 2, "addrxip4");
751 memcpy(&ipaddr
->u
.a4
.addr
, addr
, 4);
752 ipaddr
->u
.a4
.mask
= 0;
753 } else if (proto
== QETH_PROT_IPV6
) {
754 QETH_CARD_TEXT(card
, 2, "addrxip6");
755 memcpy(&ipaddr
->u
.a6
.addr
, addr
, 16);
756 ipaddr
->u
.a6
.pfxlen
= 0;
759 ipaddr
->type
= QETH_IP_TYPE_RXIP
;
760 ipaddr
->set_flags
= QETH_IPA_SETIP_TAKEOVER_FLAG
;
761 ipaddr
->del_flags
= 0;
765 spin_lock_bh(&card
->ip_lock
);
767 if (qeth_l3_ip_from_hash(card
, ipaddr
))
770 qeth_l3_add_ip(card
, ipaddr
);
772 spin_unlock_bh(&card
->ip_lock
);
779 void qeth_l3_del_rxip(struct qeth_card
*card
, enum qeth_prot_versions proto
,
782 struct qeth_ipaddr
*ipaddr
;
784 ipaddr
= qeth_l3_get_addr_buffer(proto
);
786 if (proto
== QETH_PROT_IPV4
) {
787 QETH_CARD_TEXT(card
, 2, "addrxip4");
788 memcpy(&ipaddr
->u
.a4
.addr
, addr
, 4);
789 ipaddr
->u
.a4
.mask
= 0;
790 } else if (proto
== QETH_PROT_IPV6
) {
791 QETH_CARD_TEXT(card
, 2, "addrxip6");
792 memcpy(&ipaddr
->u
.a6
.addr
, addr
, 16);
793 ipaddr
->u
.a6
.pfxlen
= 0;
795 ipaddr
->type
= QETH_IP_TYPE_RXIP
;
799 spin_lock_bh(&card
->ip_lock
);
800 qeth_l3_delete_ip(card
, ipaddr
);
801 spin_unlock_bh(&card
->ip_lock
);
806 static int qeth_l3_register_addr_entry(struct qeth_card
*card
,
807 struct qeth_ipaddr
*addr
)
814 if (addr
->proto
== QETH_PROT_IPV4
) {
815 QETH_CARD_TEXT(card
, 2, "setaddr4");
816 QETH_CARD_HEX(card
, 3, &addr
->u
.a4
.addr
, sizeof(int));
817 } else if (addr
->proto
== QETH_PROT_IPV6
) {
818 QETH_CARD_TEXT(card
, 2, "setaddr6");
819 QETH_CARD_HEX(card
, 3, &addr
->u
.a6
.addr
, 8);
820 QETH_CARD_HEX(card
, 3, ((char *)&addr
->u
.a6
.addr
) + 8, 8);
822 QETH_CARD_TEXT(card
, 2, "setaddr?");
823 QETH_CARD_HEX(card
, 3, addr
, sizeof(struct qeth_ipaddr
));
826 if (addr
->is_multicast
)
827 rc
= qeth_l3_send_setdelmc(card
, addr
, IPA_CMD_SETIPM
);
829 rc
= qeth_l3_send_setdelip(card
, addr
, IPA_CMD_SETIP
,
832 QETH_CARD_TEXT(card
, 2, "failed");
833 } while ((--cnt
> 0) && rc
);
835 QETH_CARD_TEXT(card
, 2, "FAILED");
836 qeth_l3_ipaddr_to_string(addr
->proto
, (u8
*)&addr
->u
, buf
);
837 dev_warn(&card
->gdev
->dev
,
838 "Registering IP address %s failed\n", buf
);
843 static int qeth_l3_deregister_addr_entry(struct qeth_card
*card
,
844 struct qeth_ipaddr
*addr
)
848 if (addr
->proto
== QETH_PROT_IPV4
) {
849 QETH_CARD_TEXT(card
, 2, "deladdr4");
850 QETH_CARD_HEX(card
, 3, &addr
->u
.a4
.addr
, sizeof(int));
851 } else if (addr
->proto
== QETH_PROT_IPV6
) {
852 QETH_CARD_TEXT(card
, 2, "deladdr6");
853 QETH_CARD_HEX(card
, 3, &addr
->u
.a6
.addr
, 8);
854 QETH_CARD_HEX(card
, 3, ((char *)&addr
->u
.a6
.addr
) + 8, 8);
856 QETH_CARD_TEXT(card
, 2, "deladdr?");
857 QETH_CARD_HEX(card
, 3, addr
, sizeof(struct qeth_ipaddr
));
859 if (addr
->is_multicast
)
860 rc
= qeth_l3_send_setdelmc(card
, addr
, IPA_CMD_DELIPM
);
862 rc
= qeth_l3_send_setdelip(card
, addr
, IPA_CMD_DELIP
,
865 QETH_CARD_TEXT(card
, 2, "failed");
870 static inline u8
qeth_l3_get_qeth_hdr_flags4(int cast_type
)
872 if (cast_type
== RTN_MULTICAST
)
873 return QETH_CAST_MULTICAST
;
874 if (cast_type
== RTN_BROADCAST
)
875 return QETH_CAST_BROADCAST
;
876 return QETH_CAST_UNICAST
;
879 static inline u8
qeth_l3_get_qeth_hdr_flags6(int cast_type
)
881 u8 ct
= QETH_HDR_PASSTHRU
| QETH_HDR_IPV6
;
882 if (cast_type
== RTN_MULTICAST
)
883 return ct
| QETH_CAST_MULTICAST
;
884 if (cast_type
== RTN_ANYCAST
)
885 return ct
| QETH_CAST_ANYCAST
;
886 if (cast_type
== RTN_BROADCAST
)
887 return ct
| QETH_CAST_BROADCAST
;
888 return ct
| QETH_CAST_UNICAST
;
891 static int qeth_l3_setadapter_parms(struct qeth_card
*card
)
895 QETH_DBF_TEXT(SETUP
, 2, "setadprm");
897 if (!qeth_is_supported(card
, IPA_SETADAPTERPARMS
)) {
898 dev_info(&card
->gdev
->dev
,
899 "set adapter parameters not supported.\n");
900 QETH_DBF_TEXT(SETUP
, 2, " notsupp");
903 rc
= qeth_query_setadapterparms(card
);
905 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
906 "0x%x\n", dev_name(&card
->gdev
->dev
), rc
);
909 if (qeth_adp_supported(card
, IPA_SETADP_ALTER_MAC_ADDRESS
)) {
910 rc
= qeth_setadpparms_change_macaddr(card
);
912 dev_warn(&card
->gdev
->dev
, "Reading the adapter MAC"
913 " address failed\n");
919 #ifdef CONFIG_QETH_IPV6
920 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card
*card
,
921 enum qeth_ipa_funcs ipa_func
, __u16 cmd_code
)
924 struct qeth_cmd_buffer
*iob
;
926 QETH_CARD_TEXT(card
, 4, "simassp6");
927 iob
= qeth_get_setassparms_cmd(card
, ipa_func
, cmd_code
,
931 rc
= qeth_send_setassparms(card
, iob
, 0, 0,
932 qeth_setassparms_cb
, NULL
);
937 static int qeth_l3_start_ipa_arp_processing(struct qeth_card
*card
)
941 QETH_CARD_TEXT(card
, 3, "ipaarp");
943 if (!qeth_is_supported(card
, IPA_ARP_PROCESSING
)) {
944 dev_info(&card
->gdev
->dev
,
945 "ARP processing not supported on %s!\n",
946 QETH_CARD_IFNAME(card
));
949 rc
= qeth_send_simple_setassparms(card
, IPA_ARP_PROCESSING
,
950 IPA_CMD_ASS_START
, 0);
952 dev_warn(&card
->gdev
->dev
,
953 "Starting ARP processing support for %s failed\n",
954 QETH_CARD_IFNAME(card
));
959 static int qeth_l3_start_ipa_source_mac(struct qeth_card
*card
)
963 QETH_CARD_TEXT(card
, 3, "stsrcmac");
965 if (!qeth_is_supported(card
, IPA_SOURCE_MAC
)) {
966 dev_info(&card
->gdev
->dev
,
967 "Inbound source MAC-address not supported on %s\n",
968 QETH_CARD_IFNAME(card
));
972 rc
= qeth_send_simple_setassparms(card
, IPA_SOURCE_MAC
,
973 IPA_CMD_ASS_START
, 0);
975 dev_warn(&card
->gdev
->dev
,
976 "Starting source MAC-address support for %s failed\n",
977 QETH_CARD_IFNAME(card
));
981 static int qeth_l3_start_ipa_vlan(struct qeth_card
*card
)
985 QETH_CARD_TEXT(card
, 3, "strtvlan");
987 if (!qeth_is_supported(card
, IPA_FULL_VLAN
)) {
988 dev_info(&card
->gdev
->dev
,
989 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card
));
993 rc
= qeth_send_simple_setassparms(card
, IPA_VLAN_PRIO
,
994 IPA_CMD_ASS_START
, 0);
996 dev_warn(&card
->gdev
->dev
,
997 "Starting VLAN support for %s failed\n",
998 QETH_CARD_IFNAME(card
));
1000 dev_info(&card
->gdev
->dev
, "VLAN enabled\n");
1005 static int qeth_l3_start_ipa_multicast(struct qeth_card
*card
)
1009 QETH_CARD_TEXT(card
, 3, "stmcast");
1011 if (!qeth_is_supported(card
, IPA_MULTICASTING
)) {
1012 dev_info(&card
->gdev
->dev
,
1013 "Multicast not supported on %s\n",
1014 QETH_CARD_IFNAME(card
));
1018 rc
= qeth_send_simple_setassparms(card
, IPA_MULTICASTING
,
1019 IPA_CMD_ASS_START
, 0);
1021 dev_warn(&card
->gdev
->dev
,
1022 "Starting multicast support for %s failed\n",
1023 QETH_CARD_IFNAME(card
));
1025 dev_info(&card
->gdev
->dev
, "Multicast enabled\n");
1026 card
->dev
->flags
|= IFF_MULTICAST
;
1031 #ifdef CONFIG_QETH_IPV6
1032 static int qeth_l3_softsetup_ipv6(struct qeth_card
*card
)
1036 QETH_CARD_TEXT(card
, 3, "softipv6");
1038 rc
= qeth_query_ipassists(card
, QETH_PROT_IPV6
);
1040 dev_err(&card
->gdev
->dev
,
1041 "Activating IPv6 support for %s failed\n",
1042 QETH_CARD_IFNAME(card
));
1046 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
1049 rc
= qeth_send_simple_setassparms(card
, IPA_IPV6
,
1050 IPA_CMD_ASS_START
, 3);
1052 dev_err(&card
->gdev
->dev
,
1053 "Activating IPv6 support for %s failed\n",
1054 QETH_CARD_IFNAME(card
));
1057 rc
= qeth_l3_send_simple_setassparms_ipv6(card
, IPA_IPV6
,
1060 dev_err(&card
->gdev
->dev
,
1061 "Activating IPv6 support for %s failed\n",
1062 QETH_CARD_IFNAME(card
));
1065 rc
= qeth_l3_send_simple_setassparms_ipv6(card
, IPA_PASSTHRU
,
1068 dev_warn(&card
->gdev
->dev
,
1069 "Enabling the passthrough mode for %s failed\n",
1070 QETH_CARD_IFNAME(card
));
1074 dev_info(&card
->gdev
->dev
, "IPV6 enabled\n");
1079 static int qeth_l3_start_ipa_ipv6(struct qeth_card
*card
)
1083 QETH_CARD_TEXT(card
, 3, "strtipv6");
1085 if (!qeth_is_supported(card
, IPA_IPV6
)) {
1086 dev_info(&card
->gdev
->dev
,
1087 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card
));
1090 #ifdef CONFIG_QETH_IPV6
1091 rc
= qeth_l3_softsetup_ipv6(card
);
1096 static int qeth_l3_start_ipa_broadcast(struct qeth_card
*card
)
1100 QETH_CARD_TEXT(card
, 3, "stbrdcst");
1101 card
->info
.broadcast_capable
= 0;
1102 if (!qeth_is_supported(card
, IPA_FILTERING
)) {
1103 dev_info(&card
->gdev
->dev
,
1104 "Broadcast not supported on %s\n",
1105 QETH_CARD_IFNAME(card
));
1109 rc
= qeth_send_simple_setassparms(card
, IPA_FILTERING
,
1110 IPA_CMD_ASS_START
, 0);
1112 dev_warn(&card
->gdev
->dev
, "Enabling broadcast filtering for "
1113 "%s failed\n", QETH_CARD_IFNAME(card
));
1117 rc
= qeth_send_simple_setassparms(card
, IPA_FILTERING
,
1118 IPA_CMD_ASS_CONFIGURE
, 1);
1120 dev_warn(&card
->gdev
->dev
,
1121 "Setting up broadcast filtering for %s failed\n",
1122 QETH_CARD_IFNAME(card
));
1125 card
->info
.broadcast_capable
= QETH_BROADCAST_WITH_ECHO
;
1126 dev_info(&card
->gdev
->dev
, "Broadcast enabled\n");
1127 rc
= qeth_send_simple_setassparms(card
, IPA_FILTERING
,
1128 IPA_CMD_ASS_ENABLE
, 1);
1130 dev_warn(&card
->gdev
->dev
, "Setting up broadcast echo "
1131 "filtering for %s failed\n", QETH_CARD_IFNAME(card
));
1134 card
->info
.broadcast_capable
= QETH_BROADCAST_WITHOUT_ECHO
;
1136 if (card
->info
.broadcast_capable
)
1137 card
->dev
->flags
|= IFF_BROADCAST
;
1139 card
->dev
->flags
&= ~IFF_BROADCAST
;
1143 static int qeth_l3_start_ipassists(struct qeth_card
*card
)
1145 QETH_CARD_TEXT(card
, 3, "strtipas");
1147 if (qeth_set_access_ctrl_online(card
, 0))
1149 qeth_l3_start_ipa_arp_processing(card
); /* go on*/
1150 qeth_l3_start_ipa_source_mac(card
); /* go on*/
1151 qeth_l3_start_ipa_vlan(card
); /* go on*/
1152 qeth_l3_start_ipa_multicast(card
); /* go on*/
1153 qeth_l3_start_ipa_ipv6(card
); /* go on*/
1154 qeth_l3_start_ipa_broadcast(card
); /* go on*/
1158 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card
*card
,
1159 struct qeth_reply
*reply
, unsigned long data
)
1161 struct qeth_ipa_cmd
*cmd
;
1163 cmd
= (struct qeth_ipa_cmd
*) data
;
1164 if (cmd
->hdr
.return_code
== 0)
1165 memcpy(card
->dev
->dev_addr
,
1166 cmd
->data
.create_destroy_addr
.unique_id
, ETH_ALEN
);
1168 eth_random_addr(card
->dev
->dev_addr
);
1173 static int qeth_l3_iqd_read_initial_mac(struct qeth_card
*card
)
1176 struct qeth_cmd_buffer
*iob
;
1177 struct qeth_ipa_cmd
*cmd
;
1179 QETH_DBF_TEXT(SETUP
, 2, "hsrmac");
1181 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_CREATE_ADDR
,
1185 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
1186 *((__u16
*) &cmd
->data
.create_destroy_addr
.unique_id
[6]) =
1187 card
->info
.unique_id
;
1189 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_l3_iqd_read_initial_mac_cb
,
1194 static int qeth_l3_get_unique_id_cb(struct qeth_card
*card
,
1195 struct qeth_reply
*reply
, unsigned long data
)
1197 struct qeth_ipa_cmd
*cmd
;
1199 cmd
= (struct qeth_ipa_cmd
*) data
;
1200 if (cmd
->hdr
.return_code
== 0)
1201 card
->info
.unique_id
= *((__u16
*)
1202 &cmd
->data
.create_destroy_addr
.unique_id
[6]);
1204 card
->info
.unique_id
= UNIQUE_ID_IF_CREATE_ADDR_FAILED
|
1205 UNIQUE_ID_NOT_BY_CARD
;
1206 dev_warn(&card
->gdev
->dev
, "The network adapter failed to "
1207 "generate a unique ID\n");
1212 static int qeth_l3_get_unique_id(struct qeth_card
*card
)
1215 struct qeth_cmd_buffer
*iob
;
1216 struct qeth_ipa_cmd
*cmd
;
1218 QETH_DBF_TEXT(SETUP
, 2, "guniqeid");
1220 if (!qeth_is_supported(card
, IPA_IPV6
)) {
1221 card
->info
.unique_id
= UNIQUE_ID_IF_CREATE_ADDR_FAILED
|
1222 UNIQUE_ID_NOT_BY_CARD
;
1226 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_CREATE_ADDR
,
1230 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
1231 *((__u16
*) &cmd
->data
.create_destroy_addr
.unique_id
[6]) =
1232 card
->info
.unique_id
;
1234 rc
= qeth_send_ipa_cmd(card
, iob
, qeth_l3_get_unique_id_cb
, NULL
);
1239 qeth_diags_trace_cb(struct qeth_card
*card
, struct qeth_reply
*reply
,
1242 struct qeth_ipa_cmd
*cmd
;
1245 QETH_DBF_TEXT(SETUP
, 2, "diastrcb");
1247 cmd
= (struct qeth_ipa_cmd
*)data
;
1248 rc
= cmd
->hdr
.return_code
;
1250 QETH_CARD_TEXT_(card
, 2, "dxter%x", rc
);
1251 switch (cmd
->data
.diagass
.action
) {
1252 case QETH_DIAGS_CMD_TRACE_QUERY
:
1254 case QETH_DIAGS_CMD_TRACE_DISABLE
:
1257 case IPA_RC_INVALID_SUBCMD
:
1258 card
->info
.promisc_mode
= SET_PROMISC_MODE_OFF
;
1259 dev_info(&card
->gdev
->dev
, "The HiperSockets network "
1260 "traffic analyzer is deactivated\n");
1266 case QETH_DIAGS_CMD_TRACE_ENABLE
:
1269 card
->info
.promisc_mode
= SET_PROMISC_MODE_ON
;
1270 dev_info(&card
->gdev
->dev
, "The HiperSockets network "
1271 "traffic analyzer is activated\n");
1273 case IPA_RC_HARDWARE_AUTH_ERROR
:
1274 dev_warn(&card
->gdev
->dev
, "The device is not "
1275 "authorized to run as a HiperSockets network "
1276 "traffic analyzer\n");
1278 case IPA_RC_TRACE_ALREADY_ACTIVE
:
1279 dev_warn(&card
->gdev
->dev
, "A HiperSockets "
1280 "network traffic analyzer is already "
1281 "active in the HiperSockets LAN\n");
1288 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1289 cmd
->data
.diagass
.action
, QETH_CARD_IFNAME(card
));
1296 qeth_diags_trace(struct qeth_card
*card
, enum qeth_diags_trace_cmds diags_cmd
)
1298 struct qeth_cmd_buffer
*iob
;
1299 struct qeth_ipa_cmd
*cmd
;
1301 QETH_DBF_TEXT(SETUP
, 2, "diagtrac");
1303 iob
= qeth_get_ipacmd_buffer(card
, IPA_CMD_SET_DIAG_ASS
, 0);
1306 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
1307 cmd
->data
.diagass
.subcmd_len
= 16;
1308 cmd
->data
.diagass
.subcmd
= QETH_DIAGS_CMD_TRACE
;
1309 cmd
->data
.diagass
.type
= QETH_DIAGS_TYPE_HIPERSOCKET
;
1310 cmd
->data
.diagass
.action
= diags_cmd
;
1311 return qeth_send_ipa_cmd(card
, iob
, qeth_diags_trace_cb
, NULL
);
1314 static void qeth_l3_get_mac_for_ipm(__be32 ipm
, char *mac
)
1316 ip_eth_mc_map(ipm
, mac
);
1319 static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card
*card
)
1321 struct qeth_ipaddr
*addr
;
1324 hash_for_each(card
->ip_mc_htable
, i
, addr
, hnode
)
1325 addr
->disp_flag
= QETH_DISP_ADDR_DELETE
;
1329 static void qeth_l3_add_all_new_mc(struct qeth_card
*card
)
1331 struct qeth_ipaddr
*addr
;
1332 struct hlist_node
*tmp
;
1336 hash_for_each_safe(card
->ip_mc_htable
, i
, tmp
, addr
, hnode
) {
1337 if (addr
->disp_flag
== QETH_DISP_ADDR_ADD
) {
1338 rc
= qeth_l3_register_addr_entry(card
, addr
);
1339 if (!rc
|| (rc
== IPA_RC_LAN_OFFLINE
))
1340 addr
->ref_counter
= 1;
1342 hash_del(&addr
->hnode
);
1350 static void qeth_l3_delete_nonused_mc(struct qeth_card
*card
)
1352 struct qeth_ipaddr
*addr
;
1353 struct hlist_node
*tmp
;
1357 hash_for_each_safe(card
->ip_mc_htable
, i
, tmp
, addr
, hnode
) {
1358 if (addr
->disp_flag
== QETH_DISP_ADDR_DELETE
) {
1359 rc
= qeth_l3_deregister_addr_entry(card
, addr
);
1360 if (!rc
|| (rc
== IPA_RC_MC_ADDR_NOT_FOUND
)) {
1361 hash_del(&addr
->hnode
);
1371 qeth_l3_add_mc_to_hash(struct qeth_card
*card
, struct in_device
*in4_dev
)
1373 struct ip_mc_list
*im4
;
1374 struct qeth_ipaddr
*tmp
, *ipm
;
1375 char buf
[MAX_ADDR_LEN
];
1377 QETH_CARD_TEXT(card
, 4, "addmc");
1379 tmp
= qeth_l3_get_addr_buffer(QETH_PROT_IPV4
);
1383 for (im4
= rcu_dereference(in4_dev
->mc_list
); im4
!= NULL
;
1384 im4
= rcu_dereference(im4
->next_rcu
)) {
1385 qeth_l3_get_mac_for_ipm(im4
->multiaddr
, buf
);
1387 tmp
->u
.a4
.addr
= be32_to_cpu(im4
->multiaddr
);
1388 memcpy(tmp
->mac
, buf
, sizeof(tmp
->mac
));
1390 ipm
= qeth_l3_ip_from_hash(card
, tmp
);
1392 ipm
->disp_flag
= QETH_DISP_ADDR_DO_NOTHING
;
1394 ipm
= qeth_l3_get_addr_buffer(QETH_PROT_IPV4
);
1397 memcpy(ipm
->mac
, buf
, sizeof(tmp
->mac
));
1398 ipm
->u
.a4
.addr
= be32_to_cpu(im4
->multiaddr
);
1399 ipm
->is_multicast
= 1;
1400 ipm
->disp_flag
= QETH_DISP_ADDR_ADD
;
1401 hash_add(card
->ip_mc_htable
,
1402 &ipm
->hnode
, qeth_l3_ipaddr_hash(ipm
));
1409 /* called with rcu_read_lock */
1410 static void qeth_l3_add_vlan_mc(struct qeth_card
*card
)
1412 struct in_device
*in_dev
;
1415 QETH_CARD_TEXT(card
, 4, "addmcvl");
1417 if (!qeth_is_supported(card
, IPA_FULL_VLAN
))
1420 for_each_set_bit(vid
, card
->active_vlans
, VLAN_N_VID
) {
1421 struct net_device
*netdev
;
1423 netdev
= __vlan_find_dev_deep_rcu(card
->dev
, htons(ETH_P_8021Q
),
1425 if (netdev
== NULL
||
1426 !(netdev
->flags
& IFF_UP
))
1428 in_dev
= __in_dev_get_rcu(netdev
);
1431 qeth_l3_add_mc_to_hash(card
, in_dev
);
1435 static void qeth_l3_add_multicast_ipv4(struct qeth_card
*card
)
1437 struct in_device
*in4_dev
;
1439 QETH_CARD_TEXT(card
, 4, "chkmcv4");
1442 in4_dev
= __in_dev_get_rcu(card
->dev
);
1443 if (in4_dev
== NULL
)
1445 qeth_l3_add_mc_to_hash(card
, in4_dev
);
1446 qeth_l3_add_vlan_mc(card
);
1451 #ifdef CONFIG_QETH_IPV6
1453 qeth_l3_add_mc6_to_hash(struct qeth_card
*card
, struct inet6_dev
*in6_dev
)
1455 struct qeth_ipaddr
*ipm
;
1456 struct ifmcaddr6
*im6
;
1457 struct qeth_ipaddr
*tmp
;
1458 char buf
[MAX_ADDR_LEN
];
1460 QETH_CARD_TEXT(card
, 4, "addmc6");
1462 tmp
= qeth_l3_get_addr_buffer(QETH_PROT_IPV6
);
1466 for (im6
= in6_dev
->mc_list
; im6
!= NULL
; im6
= im6
->next
) {
1467 ndisc_mc_map(&im6
->mca_addr
, buf
, in6_dev
->dev
, 0);
1469 memcpy(tmp
->mac
, buf
, sizeof(tmp
->mac
));
1470 memcpy(&tmp
->u
.a6
.addr
, &im6
->mca_addr
.s6_addr
,
1471 sizeof(struct in6_addr
));
1472 tmp
->is_multicast
= 1;
1474 ipm
= qeth_l3_ip_from_hash(card
, tmp
);
1476 ipm
->disp_flag
= QETH_DISP_ADDR_DO_NOTHING
;
1480 ipm
= qeth_l3_get_addr_buffer(QETH_PROT_IPV6
);
1484 memcpy(ipm
->mac
, buf
, OSA_ADDR_LEN
);
1485 memcpy(&ipm
->u
.a6
.addr
, &im6
->mca_addr
.s6_addr
,
1486 sizeof(struct in6_addr
));
1487 ipm
->is_multicast
= 1;
1488 ipm
->disp_flag
= QETH_DISP_ADDR_ADD
;
1489 hash_add(card
->ip_mc_htable
,
1490 &ipm
->hnode
, qeth_l3_ipaddr_hash(ipm
));
1496 /* called with rcu_read_lock */
1497 static void qeth_l3_add_vlan_mc6(struct qeth_card
*card
)
1499 struct inet6_dev
*in_dev
;
1502 QETH_CARD_TEXT(card
, 4, "admc6vl");
1504 if (!qeth_is_supported(card
, IPA_FULL_VLAN
))
1507 for_each_set_bit(vid
, card
->active_vlans
, VLAN_N_VID
) {
1508 struct net_device
*netdev
;
1510 netdev
= __vlan_find_dev_deep_rcu(card
->dev
, htons(ETH_P_8021Q
),
1512 if (netdev
== NULL
||
1513 !(netdev
->flags
& IFF_UP
))
1515 in_dev
= in6_dev_get(netdev
);
1518 read_lock_bh(&in_dev
->lock
);
1519 qeth_l3_add_mc6_to_hash(card
, in_dev
);
1520 read_unlock_bh(&in_dev
->lock
);
1521 in6_dev_put(in_dev
);
1525 static void qeth_l3_add_multicast_ipv6(struct qeth_card
*card
)
1527 struct inet6_dev
*in6_dev
;
1529 QETH_CARD_TEXT(card
, 4, "chkmcv6");
1531 if (!qeth_is_supported(card
, IPA_IPV6
))
1533 in6_dev
= in6_dev_get(card
->dev
);
1538 read_lock_bh(&in6_dev
->lock
);
1539 qeth_l3_add_mc6_to_hash(card
, in6_dev
);
1540 qeth_l3_add_vlan_mc6(card
);
1541 read_unlock_bh(&in6_dev
->lock
);
1543 in6_dev_put(in6_dev
);
1545 #endif /* CONFIG_QETH_IPV6 */
1547 static void qeth_l3_free_vlan_addresses4(struct qeth_card
*card
,
1550 struct in_device
*in_dev
;
1551 struct in_ifaddr
*ifa
;
1552 struct qeth_ipaddr
*addr
;
1553 struct net_device
*netdev
;
1555 QETH_CARD_TEXT(card
, 4, "frvaddr4");
1557 netdev
= __vlan_find_dev_deep_rcu(card
->dev
, htons(ETH_P_8021Q
), vid
);
1560 in_dev
= in_dev_get(netdev
);
1564 addr
= qeth_l3_get_addr_buffer(QETH_PROT_IPV4
);
1568 spin_lock_bh(&card
->ip_lock
);
1570 for (ifa
= in_dev
->ifa_list
; ifa
; ifa
= ifa
->ifa_next
) {
1571 addr
->u
.a4
.addr
= be32_to_cpu(ifa
->ifa_address
);
1572 addr
->u
.a4
.mask
= be32_to_cpu(ifa
->ifa_mask
);
1573 addr
->type
= QETH_IP_TYPE_NORMAL
;
1574 qeth_l3_delete_ip(card
, addr
);
1577 spin_unlock_bh(&card
->ip_lock
);
1583 static void qeth_l3_free_vlan_addresses6(struct qeth_card
*card
,
1586 #ifdef CONFIG_QETH_IPV6
1587 struct inet6_dev
*in6_dev
;
1588 struct inet6_ifaddr
*ifa
;
1589 struct qeth_ipaddr
*addr
;
1590 struct net_device
*netdev
;
1592 QETH_CARD_TEXT(card
, 4, "frvaddr6");
1594 netdev
= __vlan_find_dev_deep_rcu(card
->dev
, htons(ETH_P_8021Q
), vid
);
1598 in6_dev
= in6_dev_get(netdev
);
1602 addr
= qeth_l3_get_addr_buffer(QETH_PROT_IPV6
);
1606 spin_lock_bh(&card
->ip_lock
);
1608 list_for_each_entry(ifa
, &in6_dev
->addr_list
, if_list
) {
1609 memcpy(&addr
->u
.a6
.addr
, &ifa
->addr
,
1610 sizeof(struct in6_addr
));
1611 addr
->u
.a6
.pfxlen
= ifa
->prefix_len
;
1612 addr
->type
= QETH_IP_TYPE_NORMAL
;
1613 qeth_l3_delete_ip(card
, addr
);
1616 spin_unlock_bh(&card
->ip_lock
);
1619 in6_dev_put(in6_dev
);
1620 #endif /* CONFIG_QETH_IPV6 */
1623 static void qeth_l3_free_vlan_addresses(struct qeth_card
*card
,
1627 qeth_l3_free_vlan_addresses4(card
, vid
);
1628 qeth_l3_free_vlan_addresses6(card
, vid
);
1632 static int qeth_l3_vlan_rx_add_vid(struct net_device
*dev
,
1633 __be16 proto
, u16 vid
)
1635 struct qeth_card
*card
= dev
->ml_priv
;
1637 set_bit(vid
, card
->active_vlans
);
1641 static int qeth_l3_vlan_rx_kill_vid(struct net_device
*dev
,
1642 __be16 proto
, u16 vid
)
1644 struct qeth_card
*card
= dev
->ml_priv
;
1646 QETH_CARD_TEXT_(card
, 4, "kid:%d", vid
);
1648 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
1649 QETH_CARD_TEXT(card
, 3, "kidREC");
1652 /* unregister IP addresses of vlan device */
1653 qeth_l3_free_vlan_addresses(card
, vid
);
1654 clear_bit(vid
, card
->active_vlans
);
1655 qeth_l3_set_multicast_list(card
->dev
);
1659 static inline int qeth_l3_rebuild_skb(struct qeth_card
*card
,
1660 struct sk_buff
*skb
, struct qeth_hdr
*hdr
,
1661 unsigned short *vlan_id
)
1664 struct iphdr
*ip_hdr
;
1665 unsigned char tg_addr
[MAX_ADDR_LEN
];
1668 if (!(hdr
->hdr
.l3
.flags
& QETH_HDR_PASSTHRU
)) {
1669 prot
= (hdr
->hdr
.l3
.flags
& QETH_HDR_IPV6
) ? ETH_P_IPV6
:
1671 switch (hdr
->hdr
.l3
.flags
& QETH_HDR_CAST_MASK
) {
1672 case QETH_CAST_MULTICAST
:
1674 #ifdef CONFIG_QETH_IPV6
1676 ndisc_mc_map((struct in6_addr
*)
1678 tg_addr
, card
->dev
, 0);
1682 ip_hdr
= (struct iphdr
*)skb
->data
;
1683 ip_eth_mc_map(ip_hdr
->daddr
, tg_addr
);
1686 memcpy(tg_addr
, card
->dev
->broadcast
,
1687 card
->dev
->addr_len
);
1689 card
->stats
.multicast
++;
1690 skb
->pkt_type
= PACKET_MULTICAST
;
1692 case QETH_CAST_BROADCAST
:
1693 memcpy(tg_addr
, card
->dev
->broadcast
,
1694 card
->dev
->addr_len
);
1695 card
->stats
.multicast
++;
1696 skb
->pkt_type
= PACKET_BROADCAST
;
1698 case QETH_CAST_UNICAST
:
1699 case QETH_CAST_ANYCAST
:
1700 case QETH_CAST_NOCAST
:
1702 if (card
->options
.sniffer
)
1703 skb
->pkt_type
= PACKET_OTHERHOST
;
1705 skb
->pkt_type
= PACKET_HOST
;
1706 memcpy(tg_addr
, card
->dev
->dev_addr
,
1707 card
->dev
->addr_len
);
1709 if (hdr
->hdr
.l3
.ext_flags
& QETH_HDR_EXT_SRC_MAC_ADDR
)
1710 card
->dev
->header_ops
->create(skb
, card
->dev
, prot
,
1711 tg_addr
, &hdr
->hdr
.l3
.dest_addr
[2],
1712 card
->dev
->addr_len
);
1714 card
->dev
->header_ops
->create(skb
, card
->dev
, prot
,
1715 tg_addr
, "FAKELL", card
->dev
->addr_len
);
1718 skb
->protocol
= eth_type_trans(skb
, card
->dev
);
1720 if (hdr
->hdr
.l3
.ext_flags
&
1721 (QETH_HDR_EXT_VLAN_FRAME
| QETH_HDR_EXT_INCLUDE_VLAN_TAG
)) {
1722 *vlan_id
= (hdr
->hdr
.l3
.ext_flags
& QETH_HDR_EXT_VLAN_FRAME
) ?
1723 hdr
->hdr
.l3
.vlan_id
: *((u16
*)&hdr
->hdr
.l3
.dest_addr
[12]);
1727 if (card
->dev
->features
& NETIF_F_RXCSUM
) {
1728 if ((hdr
->hdr
.l3
.ext_flags
&
1729 (QETH_HDR_EXT_CSUM_HDR_REQ
|
1730 QETH_HDR_EXT_CSUM_TRANSP_REQ
)) ==
1731 (QETH_HDR_EXT_CSUM_HDR_REQ
|
1732 QETH_HDR_EXT_CSUM_TRANSP_REQ
))
1733 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1735 skb
->ip_summed
= CHECKSUM_NONE
;
1737 skb
->ip_summed
= CHECKSUM_NONE
;
1741 static int qeth_l3_process_inbound_buffer(struct qeth_card
*card
,
1742 int budget
, int *done
)
1745 struct sk_buff
*skb
;
1746 struct qeth_hdr
*hdr
;
1753 WARN_ON_ONCE(!budget
);
1755 skb
= qeth_core_get_next_skb(card
,
1756 &card
->qdio
.in_q
->bufs
[card
->rx
.b_index
],
1757 &card
->rx
.b_element
, &card
->rx
.e_offset
, &hdr
);
1762 skb
->dev
= card
->dev
;
1763 switch (hdr
->hdr
.l3
.id
) {
1764 case QETH_HEADER_TYPE_LAYER3
:
1765 magic
= *(__u16
*)skb
->data
;
1766 if ((card
->info
.type
== QETH_CARD_TYPE_IQD
) &&
1767 (magic
== ETH_P_AF_IUCV
)) {
1768 skb
->protocol
= cpu_to_be16(ETH_P_AF_IUCV
);
1769 skb
->pkt_type
= PACKET_HOST
;
1770 skb
->mac_header
= NET_SKB_PAD
;
1771 skb
->dev
= card
->dev
;
1773 card
->dev
->header_ops
->create(skb
, card
->dev
, 0,
1774 card
->dev
->dev_addr
, "FAKELL",
1775 card
->dev
->addr_len
);
1776 netif_receive_skb(skb
);
1778 is_vlan
= qeth_l3_rebuild_skb(card
, skb
, hdr
,
1781 if (is_vlan
&& !card
->options
.sniffer
)
1782 __vlan_hwaccel_put_tag(skb
,
1783 htons(ETH_P_8021Q
), vlan_tag
);
1784 napi_gro_receive(&card
->napi
, skb
);
1787 case QETH_HEADER_TYPE_LAYER2
: /* for HiperSockets sniffer */
1788 skb
->pkt_type
= PACKET_HOST
;
1789 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
1791 netif_receive_skb(skb
);
1794 dev_kfree_skb_any(skb
);
1795 QETH_CARD_TEXT(card
, 3, "inbunkno");
1796 QETH_DBF_HEX(CTRL
, 3, hdr
, QETH_DBF_CTRL_LEN
);
1801 card
->stats
.rx_packets
++;
1802 card
->stats
.rx_bytes
+= len
;
1807 static int qeth_l3_verify_vlan_dev(struct net_device
*dev
,
1808 struct qeth_card
*card
)
1813 for_each_set_bit(vid
, card
->active_vlans
, VLAN_N_VID
) {
1814 struct net_device
*netdev
;
1817 netdev
= __vlan_find_dev_deep_rcu(card
->dev
, htons(ETH_P_8021Q
),
1820 if (netdev
== dev
) {
1821 rc
= QETH_VLAN_CARD
;
1826 if (rc
&& !(vlan_dev_real_dev(dev
)->ml_priv
== (void *)card
))
1832 static int qeth_l3_verify_dev(struct net_device
*dev
)
1834 struct qeth_card
*card
;
1836 unsigned long flags
;
1838 read_lock_irqsave(&qeth_core_card_list
.rwlock
, flags
);
1839 list_for_each_entry(card
, &qeth_core_card_list
.list
, list
) {
1840 if (card
->dev
== dev
) {
1841 rc
= QETH_REAL_CARD
;
1844 rc
= qeth_l3_verify_vlan_dev(dev
, card
);
1848 read_unlock_irqrestore(&qeth_core_card_list
.rwlock
, flags
);
1853 static struct qeth_card
*qeth_l3_get_card_from_dev(struct net_device
*dev
)
1855 struct qeth_card
*card
= NULL
;
1858 rc
= qeth_l3_verify_dev(dev
);
1859 if (rc
== QETH_REAL_CARD
)
1860 card
= dev
->ml_priv
;
1861 else if (rc
== QETH_VLAN_CARD
)
1862 card
= vlan_dev_real_dev(dev
)->ml_priv
;
1863 if (card
&& card
->options
.layer2
)
1866 QETH_CARD_TEXT_(card
, 4, "%d", rc
);
1870 static void qeth_l3_stop_card(struct qeth_card
*card
, int recovery_mode
)
1872 QETH_DBF_TEXT(SETUP
, 2, "stopcard");
1873 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
1875 qeth_set_allowed_threads(card
, 0, 1);
1876 if (card
->options
.sniffer
&&
1877 (card
->info
.promisc_mode
== SET_PROMISC_MODE_ON
))
1878 qeth_diags_trace(card
, QETH_DIAGS_CMD_TRACE_DISABLE
);
1879 if (card
->read
.state
== CH_STATE_UP
&&
1880 card
->write
.state
== CH_STATE_UP
&&
1881 (card
->state
== CARD_STATE_UP
)) {
1883 qeth_l3_stop(card
->dev
);
1886 dev_close(card
->dev
);
1889 card
->state
= CARD_STATE_SOFTSETUP
;
1891 if (card
->state
== CARD_STATE_SOFTSETUP
) {
1892 qeth_l3_clear_ip_htable(card
, 1);
1893 qeth_clear_ipacmd_list(card
);
1894 card
->state
= CARD_STATE_HARDSETUP
;
1896 if (card
->state
== CARD_STATE_HARDSETUP
) {
1897 qeth_qdio_clear_card(card
, 0);
1898 qeth_clear_qdio_buffers(card
);
1899 qeth_clear_working_pool_list(card
);
1900 card
->state
= CARD_STATE_DOWN
;
1902 if (card
->state
== CARD_STATE_DOWN
) {
1903 qeth_clear_cmd_buffers(&card
->read
);
1904 qeth_clear_cmd_buffers(&card
->write
);
1909 * test for and Switch promiscuous mode (on or off)
1910 * either for guestlan or HiperSocket Sniffer
1913 qeth_l3_handle_promisc_mode(struct qeth_card
*card
)
1915 struct net_device
*dev
= card
->dev
;
1917 if (((dev
->flags
& IFF_PROMISC
) &&
1918 (card
->info
.promisc_mode
== SET_PROMISC_MODE_ON
)) ||
1919 (!(dev
->flags
& IFF_PROMISC
) &&
1920 (card
->info
.promisc_mode
== SET_PROMISC_MODE_OFF
)))
1923 if (card
->info
.guestlan
) { /* Guestlan trace */
1924 if (qeth_adp_supported(card
, IPA_SETADP_SET_PROMISC_MODE
))
1925 qeth_setadp_promisc_mode(card
);
1926 } else if (card
->options
.sniffer
&& /* HiperSockets trace */
1927 qeth_adp_supported(card
, IPA_SETADP_SET_DIAG_ASSIST
)) {
1928 if (dev
->flags
& IFF_PROMISC
) {
1929 QETH_CARD_TEXT(card
, 3, "+promisc");
1930 qeth_diags_trace(card
, QETH_DIAGS_CMD_TRACE_ENABLE
);
1932 QETH_CARD_TEXT(card
, 3, "-promisc");
1933 qeth_diags_trace(card
, QETH_DIAGS_CMD_TRACE_DISABLE
);
1938 static void qeth_l3_set_multicast_list(struct net_device
*dev
)
1940 struct qeth_card
*card
= dev
->ml_priv
;
1942 QETH_CARD_TEXT(card
, 3, "setmulti");
1943 if (qeth_threads_running(card
, QETH_RECOVER_THREAD
) &&
1944 (card
->state
!= CARD_STATE_UP
))
1946 if (!card
->options
.sniffer
) {
1948 spin_lock_bh(&card
->mclock
);
1950 qeth_l3_mark_all_mc_to_be_deleted(card
);
1952 qeth_l3_add_multicast_ipv4(card
);
1953 #ifdef CONFIG_QETH_IPV6
1954 qeth_l3_add_multicast_ipv6(card
);
1956 qeth_l3_delete_nonused_mc(card
);
1957 qeth_l3_add_all_new_mc(card
);
1959 spin_unlock_bh(&card
->mclock
);
1961 if (!qeth_adp_supported(card
, IPA_SETADP_SET_PROMISC_MODE
))
1964 qeth_l3_handle_promisc_mode(card
);
1967 static const char *qeth_l3_arp_get_error_cause(int *rc
)
1970 case QETH_IPA_ARP_RC_FAILED
:
1972 return "operation failed";
1973 case QETH_IPA_ARP_RC_NOTSUPP
:
1975 return "operation not supported";
1976 case QETH_IPA_ARP_RC_OUT_OF_RANGE
:
1978 return "argument out of range";
1979 case QETH_IPA_ARP_RC_Q_NOTSUPP
:
1981 return "query operation not supported";
1982 case QETH_IPA_ARP_RC_Q_NO_DATA
:
1984 return "no query data available";
1986 return "unknown error";
1990 static int qeth_l3_arp_set_no_entries(struct qeth_card
*card
, int no_entries
)
1995 QETH_CARD_TEXT(card
, 3, "arpstnoe");
1998 * currently GuestLAN only supports the ARP assist function
1999 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2000 * thus we say EOPNOTSUPP for this ARP function
2002 if (card
->info
.guestlan
)
2004 if (!qeth_is_supported(card
, IPA_ARP_PROCESSING
)) {
2007 rc
= qeth_send_simple_setassparms(card
, IPA_ARP_PROCESSING
,
2008 IPA_CMD_ASS_ARP_SET_NO_ENTRIES
,
2012 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2013 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card
),
2014 qeth_l3_arp_get_error_cause(&rc
), tmp
, tmp
);
2019 static __u32
get_arp_entry_size(struct qeth_card
*card
,
2020 struct qeth_arp_query_data
*qdata
,
2021 struct qeth_arp_entrytype
*type
, __u8 strip_entries
)
2026 is_hsi
= qdata
->reply_bits
== 5;
2027 if (type
->ip
== QETHARP_IP_ADDR_V4
) {
2028 QETH_CARD_TEXT(card
, 4, "arpev4");
2029 if (strip_entries
) {
2030 rc
= is_hsi
? sizeof(struct qeth_arp_qi_entry5_short
) :
2031 sizeof(struct qeth_arp_qi_entry7_short
);
2033 rc
= is_hsi
? sizeof(struct qeth_arp_qi_entry5
) :
2034 sizeof(struct qeth_arp_qi_entry7
);
2036 } else if (type
->ip
== QETHARP_IP_ADDR_V6
) {
2037 QETH_CARD_TEXT(card
, 4, "arpev6");
2038 if (strip_entries
) {
2040 sizeof(struct qeth_arp_qi_entry5_short_ipv6
) :
2041 sizeof(struct qeth_arp_qi_entry7_short_ipv6
);
2044 sizeof(struct qeth_arp_qi_entry5_ipv6
) :
2045 sizeof(struct qeth_arp_qi_entry7_ipv6
);
2048 QETH_CARD_TEXT(card
, 4, "arpinv");
2055 static int arpentry_matches_prot(struct qeth_arp_entrytype
*type
, __u16 prot
)
2057 return (type
->ip
== QETHARP_IP_ADDR_V4
&& prot
== QETH_PROT_IPV4
) ||
2058 (type
->ip
== QETHARP_IP_ADDR_V6
&& prot
== QETH_PROT_IPV6
);
2061 static int qeth_l3_arp_query_cb(struct qeth_card
*card
,
2062 struct qeth_reply
*reply
, unsigned long data
)
2064 struct qeth_ipa_cmd
*cmd
;
2065 struct qeth_arp_query_data
*qdata
;
2066 struct qeth_arp_query_info
*qinfo
;
2069 int entrybytes_done
;
2071 __u8 do_strip_entries
;
2073 QETH_CARD_TEXT(card
, 3, "arpquecb");
2075 qinfo
= (struct qeth_arp_query_info
*) reply
->param
;
2076 cmd
= (struct qeth_ipa_cmd
*) data
;
2077 QETH_CARD_TEXT_(card
, 4, "%i", cmd
->hdr
.prot_version
);
2078 if (cmd
->hdr
.return_code
) {
2079 QETH_CARD_TEXT(card
, 4, "arpcberr");
2080 QETH_CARD_TEXT_(card
, 4, "%i", cmd
->hdr
.return_code
);
2083 if (cmd
->data
.setassparms
.hdr
.return_code
) {
2084 cmd
->hdr
.return_code
= cmd
->data
.setassparms
.hdr
.return_code
;
2085 QETH_CARD_TEXT(card
, 4, "setaperr");
2086 QETH_CARD_TEXT_(card
, 4, "%i", cmd
->hdr
.return_code
);
2089 qdata
= &cmd
->data
.setassparms
.data
.query_arp
;
2090 QETH_CARD_TEXT_(card
, 4, "anoen%i", qdata
->no_entries
);
2092 do_strip_entries
= (qinfo
->mask_bits
& QETH_QARP_STRIP_ENTRIES
) > 0;
2093 stripped_bytes
= do_strip_entries
? QETH_QARP_MEDIASPECIFIC_BYTES
: 0;
2094 entrybytes_done
= 0;
2095 for (e
= 0; e
< qdata
->no_entries
; ++e
) {
2098 struct qeth_arp_entrytype
*etype
;
2100 cur_entry
= &qdata
->data
+ entrybytes_done
;
2101 etype
= &((struct qeth_arp_qi_entry5
*) cur_entry
)->type
;
2102 if (!arpentry_matches_prot(etype
, cmd
->hdr
.prot_version
)) {
2103 QETH_CARD_TEXT(card
, 4, "pmis");
2104 QETH_CARD_TEXT_(card
, 4, "%i", etype
->ip
);
2107 esize
= get_arp_entry_size(card
, qdata
, etype
,
2109 QETH_CARD_TEXT_(card
, 5, "esz%i", esize
);
2113 if ((qinfo
->udata_len
- qinfo
->udata_offset
) < esize
) {
2114 QETH_CARD_TEXT_(card
, 4, "qaer3%i", -ENOMEM
);
2115 cmd
->hdr
.return_code
= IPA_RC_ENOMEM
;
2119 memcpy(qinfo
->udata
+ qinfo
->udata_offset
,
2120 &qdata
->data
+ entrybytes_done
+ stripped_bytes
,
2122 entrybytes_done
+= esize
+ stripped_bytes
;
2123 qinfo
->udata_offset
+= esize
;
2124 ++qinfo
->no_entries
;
2126 /* check if all replies received ... */
2127 if (cmd
->data
.setassparms
.hdr
.seq_no
<
2128 cmd
->data
.setassparms
.hdr
.number_of_replies
)
2130 QETH_CARD_TEXT_(card
, 4, "nove%i", qinfo
->no_entries
);
2131 memcpy(qinfo
->udata
, &qinfo
->no_entries
, 4);
2132 /* keep STRIP_ENTRIES flag so the user program can distinguish
2133 * stripped entries from normal ones */
2134 if (qinfo
->mask_bits
& QETH_QARP_STRIP_ENTRIES
)
2135 qdata
->reply_bits
|= QETH_QARP_STRIP_ENTRIES
;
2136 memcpy(qinfo
->udata
+ QETH_QARP_MASK_OFFSET
, &qdata
->reply_bits
, 2);
2137 QETH_CARD_TEXT_(card
, 4, "rc%i", 0);
2141 memcpy(qinfo
->udata
, &i
, 4);
2145 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card
*card
,
2146 struct qeth_cmd_buffer
*iob
, int len
,
2147 int (*reply_cb
)(struct qeth_card
*, struct qeth_reply
*,
2151 QETH_CARD_TEXT(card
, 4, "sendarp");
2153 memcpy(iob
->data
, IPA_PDU_HEADER
, IPA_PDU_HEADER_SIZE
);
2154 memcpy(QETH_IPA_CMD_DEST_ADDR(iob
->data
),
2155 &card
->token
.ulp_connection_r
, QETH_MPC_TOKEN_LENGTH
);
2156 return qeth_send_control_data(card
, IPA_PDU_HEADER_SIZE
+ len
, iob
,
2157 reply_cb
, reply_param
);
2160 static int qeth_l3_query_arp_cache_info(struct qeth_card
*card
,
2161 enum qeth_prot_versions prot
,
2162 struct qeth_arp_query_info
*qinfo
)
2164 struct qeth_cmd_buffer
*iob
;
2165 struct qeth_ipa_cmd
*cmd
;
2169 QETH_CARD_TEXT_(card
, 3, "qarpipv%i", prot
);
2171 iob
= qeth_get_setassparms_cmd(card
, IPA_ARP_PROCESSING
,
2172 IPA_CMD_ASS_ARP_QUERY_INFO
,
2173 sizeof(struct qeth_arp_query_data
)
2178 cmd
= (struct qeth_ipa_cmd
*)(iob
->data
+IPA_PDU_HEADER_SIZE
);
2179 cmd
->data
.setassparms
.data
.query_arp
.request_bits
= 0x000F;
2180 cmd
->data
.setassparms
.data
.query_arp
.reply_bits
= 0;
2181 cmd
->data
.setassparms
.data
.query_arp
.no_entries
= 0;
2182 rc
= qeth_l3_send_ipa_arp_cmd(card
, iob
,
2183 QETH_SETASS_BASE_LEN
+QETH_ARP_CMD_LEN
,
2184 qeth_l3_arp_query_cb
, (void *)qinfo
);
2188 "Error while querying ARP cache on %s: %s "
2189 "(0x%x/%d)\n", QETH_CARD_IFNAME(card
),
2190 qeth_l3_arp_get_error_cause(&rc
), tmp
, tmp
);
2196 static int qeth_l3_arp_query(struct qeth_card
*card
, char __user
*udata
)
2198 struct qeth_arp_query_info qinfo
= {0, };
2201 QETH_CARD_TEXT(card
, 3, "arpquery");
2203 if (!qeth_is_supported(card
,/*IPA_QUERY_ARP_ADDR_INFO*/
2204 IPA_ARP_PROCESSING
)) {
2205 QETH_CARD_TEXT(card
, 3, "arpqnsup");
2209 /* get size of userspace buffer and mask_bits -> 6 bytes */
2210 if (copy_from_user(&qinfo
, udata
, 6)) {
2214 qinfo
.udata
= kzalloc(qinfo
.udata_len
, GFP_KERNEL
);
2219 qinfo
.udata_offset
= QETH_QARP_ENTRIES_OFFSET
;
2220 rc
= qeth_l3_query_arp_cache_info(card
, QETH_PROT_IPV4
, &qinfo
);
2222 if (copy_to_user(udata
, qinfo
.udata
, 4))
2226 #ifdef CONFIG_QETH_IPV6
2227 if (qinfo
.mask_bits
& QETH_QARP_WITH_IPV6
) {
2228 /* fails in case of GuestLAN QDIO mode */
2229 qeth_l3_query_arp_cache_info(card
, QETH_PROT_IPV6
, &qinfo
);
2232 if (copy_to_user(udata
, qinfo
.udata
, qinfo
.udata_len
)) {
2233 QETH_CARD_TEXT(card
, 4, "qactf");
2237 QETH_CARD_TEXT(card
, 4, "qacts");
2245 static int qeth_l3_arp_add_entry(struct qeth_card
*card
,
2246 struct qeth_arp_cache_entry
*entry
)
2248 struct qeth_cmd_buffer
*iob
;
2253 QETH_CARD_TEXT(card
, 3, "arpadent");
2256 * currently GuestLAN only supports the ARP assist function
2257 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2258 * thus we say EOPNOTSUPP for this ARP function
2260 if (card
->info
.guestlan
)
2262 if (!qeth_is_supported(card
, IPA_ARP_PROCESSING
)) {
2266 iob
= qeth_get_setassparms_cmd(card
, IPA_ARP_PROCESSING
,
2267 IPA_CMD_ASS_ARP_ADD_ENTRY
,
2268 sizeof(struct qeth_arp_cache_entry
),
2272 rc
= qeth_send_setassparms(card
, iob
,
2273 sizeof(struct qeth_arp_cache_entry
),
2274 (unsigned long) entry
,
2275 qeth_setassparms_cb
, NULL
);
2278 qeth_l3_ipaddr4_to_string((u8
*)entry
->ipaddr
, buf
);
2279 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2280 "on %s: %s (0x%x/%d)\n", buf
, QETH_CARD_IFNAME(card
),
2281 qeth_l3_arp_get_error_cause(&rc
), tmp
, tmp
);
2286 static int qeth_l3_arp_remove_entry(struct qeth_card
*card
,
2287 struct qeth_arp_cache_entry
*entry
)
2289 struct qeth_cmd_buffer
*iob
;
2290 char buf
[16] = {0, };
2294 QETH_CARD_TEXT(card
, 3, "arprment");
2297 * currently GuestLAN only supports the ARP assist function
2298 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2299 * thus we say EOPNOTSUPP for this ARP function
2301 if (card
->info
.guestlan
)
2303 if (!qeth_is_supported(card
, IPA_ARP_PROCESSING
)) {
2306 memcpy(buf
, entry
, 12);
2307 iob
= qeth_get_setassparms_cmd(card
, IPA_ARP_PROCESSING
,
2308 IPA_CMD_ASS_ARP_REMOVE_ENTRY
,
2313 rc
= qeth_send_setassparms(card
, iob
,
2314 12, (unsigned long)buf
,
2315 qeth_setassparms_cb
, NULL
);
2319 qeth_l3_ipaddr4_to_string((u8
*)entry
->ipaddr
, buf
);
2320 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2321 " on %s: %s (0x%x/%d)\n", buf
, QETH_CARD_IFNAME(card
),
2322 qeth_l3_arp_get_error_cause(&rc
), tmp
, tmp
);
2327 static int qeth_l3_arp_flush_cache(struct qeth_card
*card
)
2332 QETH_CARD_TEXT(card
, 3, "arpflush");
2335 * currently GuestLAN only supports the ARP assist function
2336 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2337 * thus we say EOPNOTSUPP for this ARP function
2339 if (card
->info
.guestlan
|| (card
->info
.type
== QETH_CARD_TYPE_IQD
))
2341 if (!qeth_is_supported(card
, IPA_ARP_PROCESSING
)) {
2344 rc
= qeth_send_simple_setassparms(card
, IPA_ARP_PROCESSING
,
2345 IPA_CMD_ASS_ARP_FLUSH_CACHE
, 0);
2348 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2349 "(0x%x/%d)\n", QETH_CARD_IFNAME(card
),
2350 qeth_l3_arp_get_error_cause(&rc
), tmp
, tmp
);
2355 static int qeth_l3_do_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
2357 struct qeth_card
*card
= dev
->ml_priv
;
2358 struct qeth_arp_cache_entry arp_entry
;
2362 case SIOC_QETH_ARP_SET_NO_ENTRIES
:
2363 if (!capable(CAP_NET_ADMIN
)) {
2367 rc
= qeth_l3_arp_set_no_entries(card
, rq
->ifr_ifru
.ifru_ivalue
);
2369 case SIOC_QETH_ARP_QUERY_INFO
:
2370 if (!capable(CAP_NET_ADMIN
)) {
2374 rc
= qeth_l3_arp_query(card
, rq
->ifr_ifru
.ifru_data
);
2376 case SIOC_QETH_ARP_ADD_ENTRY
:
2377 if (!capable(CAP_NET_ADMIN
)) {
2381 if (copy_from_user(&arp_entry
, rq
->ifr_ifru
.ifru_data
,
2382 sizeof(struct qeth_arp_cache_entry
)))
2385 rc
= qeth_l3_arp_add_entry(card
, &arp_entry
);
2387 case SIOC_QETH_ARP_REMOVE_ENTRY
:
2388 if (!capable(CAP_NET_ADMIN
)) {
2392 if (copy_from_user(&arp_entry
, rq
->ifr_ifru
.ifru_data
,
2393 sizeof(struct qeth_arp_cache_entry
)))
2396 rc
= qeth_l3_arp_remove_entry(card
, &arp_entry
);
2398 case SIOC_QETH_ARP_FLUSH_CACHE
:
2399 if (!capable(CAP_NET_ADMIN
)) {
2403 rc
= qeth_l3_arp_flush_cache(card
);
2411 int inline qeth_l3_get_cast_type(struct qeth_card
*card
, struct sk_buff
*skb
)
2413 int cast_type
= RTN_UNSPEC
;
2414 struct neighbour
*n
= NULL
;
2415 struct dst_entry
*dst
;
2420 n
= dst_neigh_lookup_skb(dst
, skb
);
2422 cast_type
= n
->type
;
2425 if ((cast_type
== RTN_BROADCAST
) ||
2426 (cast_type
== RTN_MULTICAST
) ||
2427 (cast_type
== RTN_ANYCAST
))
2434 /* try something else */
2435 if (be16_to_cpu(skb
->protocol
) == ETH_P_IPV6
)
2436 return (skb_network_header(skb
)[24] == 0xff) ?
2438 else if (be16_to_cpu(skb
->protocol
) == ETH_P_IP
)
2439 return ((skb_network_header(skb
)[16] & 0xf0) == 0xe0) ?
2442 if (!memcmp(skb
->data
, skb
->dev
->broadcast
, 6))
2443 return RTN_BROADCAST
;
2447 hdr_mac
= *((u16
*)skb
->data
);
2449 switch (card
->info
.link_type
) {
2450 case QETH_LINK_TYPE_HSTR
:
2451 case QETH_LINK_TYPE_LANE_TR
:
2452 if ((hdr_mac
== QETH_TR_MAC_NC
) ||
2453 (hdr_mac
== QETH_TR_MAC_C
))
2454 return RTN_MULTICAST
;
2456 /* eth or so multicast? */
2458 if ((hdr_mac
== QETH_ETH_MAC_V4
) ||
2459 (hdr_mac
== QETH_ETH_MAC_V6
))
2460 return RTN_MULTICAST
;
2466 static void qeth_l3_fill_af_iucv_hdr(struct qeth_card
*card
,
2467 struct qeth_hdr
*hdr
, struct sk_buff
*skb
)
2470 struct af_iucv_trans_hdr
*iucv_hdr
;
2472 memset(hdr
, 0, sizeof(struct qeth_hdr
));
2473 hdr
->hdr
.l3
.id
= QETH_HEADER_TYPE_LAYER3
;
2474 hdr
->hdr
.l3
.ext_flags
= 0;
2475 hdr
->hdr
.l3
.length
= skb
->len
- ETH_HLEN
;
2476 hdr
->hdr
.l3
.flags
= QETH_HDR_IPV6
| QETH_CAST_UNICAST
;
2478 iucv_hdr
= (struct af_iucv_trans_hdr
*) (skb
->data
+ ETH_HLEN
);
2479 memset(daddr
, 0, sizeof(daddr
));
2482 memcpy(&daddr
[8], iucv_hdr
->destUserID
, 8);
2483 memcpy(hdr
->hdr
.l3
.dest_addr
, daddr
, 16);
2486 static void qeth_l3_fill_header(struct qeth_card
*card
, struct qeth_hdr
*hdr
,
2487 struct sk_buff
*skb
, int ipv
, int cast_type
)
2489 struct dst_entry
*dst
;
2491 memset(hdr
, 0, sizeof(struct qeth_hdr
));
2492 hdr
->hdr
.l3
.id
= QETH_HEADER_TYPE_LAYER3
;
2493 hdr
->hdr
.l3
.ext_flags
= 0;
2496 * before we're going to overwrite this location with next hop ip.
2497 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2499 if (skb_vlan_tag_present(skb
)) {
2500 if ((ipv
== 4) || (card
->info
.type
== QETH_CARD_TYPE_IQD
))
2501 hdr
->hdr
.l3
.ext_flags
= QETH_HDR_EXT_VLAN_FRAME
;
2503 hdr
->hdr
.l3
.ext_flags
= QETH_HDR_EXT_INCLUDE_VLAN_TAG
;
2504 hdr
->hdr
.l3
.vlan_id
= skb_vlan_tag_get(skb
);
2507 hdr
->hdr
.l3
.length
= skb
->len
- sizeof(struct qeth_hdr
);
2512 struct rtable
*rt
= (struct rtable
*) dst
;
2513 __be32
*pkey
= &ip_hdr(skb
)->daddr
;
2516 pkey
= &rt
->rt_gateway
;
2519 hdr
->hdr
.l3
.flags
= qeth_l3_get_qeth_hdr_flags4(cast_type
);
2520 memset(hdr
->hdr
.l3
.dest_addr
, 0, 12);
2521 *((__be32
*) (&hdr
->hdr
.l3
.dest_addr
[12])) = *pkey
;
2522 } else if (ipv
== 6) {
2523 struct rt6_info
*rt
= (struct rt6_info
*) dst
;
2524 struct in6_addr
*pkey
= &ipv6_hdr(skb
)->daddr
;
2526 if (!ipv6_addr_any(&rt
->rt6i_gateway
))
2527 pkey
= &rt
->rt6i_gateway
;
2530 hdr
->hdr
.l3
.flags
= qeth_l3_get_qeth_hdr_flags6(cast_type
);
2531 if (card
->info
.type
== QETH_CARD_TYPE_IQD
)
2532 hdr
->hdr
.l3
.flags
&= ~QETH_HDR_PASSTHRU
;
2533 memcpy(hdr
->hdr
.l3
.dest_addr
, pkey
, 16);
2535 if (!memcmp(skb
->data
+ sizeof(struct qeth_hdr
),
2536 skb
->dev
->broadcast
, 6)) {
2538 hdr
->hdr
.l3
.flags
= QETH_CAST_BROADCAST
|
2541 hdr
->hdr
.l3
.flags
= (cast_type
== RTN_MULTICAST
) ?
2542 QETH_CAST_MULTICAST
| QETH_HDR_PASSTHRU
:
2543 QETH_CAST_UNICAST
| QETH_HDR_PASSTHRU
;
2549 static inline void qeth_l3_hdr_csum(struct qeth_card
*card
,
2550 struct qeth_hdr
*hdr
, struct sk_buff
*skb
)
2552 struct iphdr
*iph
= ip_hdr(skb
);
2554 /* tcph->check contains already the pseudo hdr checksum
2555 * so just set the header flags
2557 if (iph
->protocol
== IPPROTO_UDP
)
2558 hdr
->hdr
.l3
.ext_flags
|= QETH_HDR_EXT_UDP
;
2559 hdr
->hdr
.l3
.ext_flags
|= QETH_HDR_EXT_CSUM_TRANSP_REQ
|
2560 QETH_HDR_EXT_CSUM_HDR_REQ
;
2562 if (card
->options
.performance_stats
)
2563 card
->perf_stats
.tx_csum
++;
2566 static void qeth_tso_fill_header(struct qeth_card
*card
,
2567 struct qeth_hdr
*qhdr
, struct sk_buff
*skb
)
2569 struct qeth_hdr_tso
*hdr
= (struct qeth_hdr_tso
*)qhdr
;
2570 struct tcphdr
*tcph
= tcp_hdr(skb
);
2571 struct iphdr
*iph
= ip_hdr(skb
);
2572 struct ipv6hdr
*ip6h
= ipv6_hdr(skb
);
2574 /*fix header to TSO values ...*/
2575 hdr
->hdr
.hdr
.l3
.id
= QETH_HEADER_TYPE_TSO
;
2576 hdr
->hdr
.hdr
.l3
.length
= skb
->len
- sizeof(struct qeth_hdr_tso
);
2577 /*set values which are fix for the first approach ...*/
2578 hdr
->ext
.hdr_tot_len
= (__u16
) sizeof(struct qeth_hdr_ext_tso
);
2579 hdr
->ext
.imb_hdr_no
= 1;
2580 hdr
->ext
.hdr_type
= 1;
2581 hdr
->ext
.hdr_version
= 1;
2582 hdr
->ext
.hdr_len
= 28;
2583 /*insert non-fix values */
2584 hdr
->ext
.mss
= skb_shinfo(skb
)->gso_size
;
2585 hdr
->ext
.dg_hdr_len
= (__u16
)(iph
->ihl
*4 + tcph
->doff
*4);
2586 hdr
->ext
.payload_len
= (__u16
)(skb
->len
- hdr
->ext
.dg_hdr_len
-
2587 sizeof(struct qeth_hdr_tso
));
2589 if (be16_to_cpu(skb
->protocol
) == ETH_P_IPV6
) {
2590 ip6h
->payload_len
= 0;
2591 tcph
->check
= ~csum_ipv6_magic(&ip6h
->saddr
, &ip6h
->daddr
,
2594 /*OSA want us to set these values ...*/
2595 tcph
->check
= ~csum_tcpudp_magic(iph
->saddr
, iph
->daddr
,
2603 * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
2604 * @card: qeth card structure, to check max. elems.
2606 * @extra_elems: extra elems needed, to check against max.
2608 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
2609 * skb data, including linear part and fragments, but excluding TCP header.
2610 * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
2611 * Checks if the result plus extra_elems fits under the limit for the card.
2612 * Returns 0 if it does not.
2613 * Note: extra_elems is not included in the returned result.
2615 static int qeth_l3_get_elements_no_tso(struct qeth_card
*card
,
2616 struct sk_buff
*skb
, int extra_elems
)
2618 addr_t tcpdptr
= (addr_t
)tcp_hdr(skb
) + tcp_hdrlen(skb
);
2619 int elements
= qeth_get_elements_for_range(
2621 (addr_t
)skb
->data
+ skb_headlen(skb
)) +
2622 qeth_get_elements_for_frags(skb
);
2624 if ((elements
+ extra_elems
) > QETH_MAX_BUFFER_ELEMENTS(card
)) {
2626 "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
2627 elements
+ extra_elems
, skb
->len
);
2633 static netdev_tx_t
qeth_l3_hard_start_xmit(struct sk_buff
*skb
,
2634 struct net_device
*dev
)
2638 struct qeth_hdr
*hdr
= NULL
;
2639 int hdr_elements
= 0;
2641 struct qeth_card
*card
= dev
->ml_priv
;
2642 struct sk_buff
*new_skb
= NULL
;
2643 int ipv
= qeth_get_ip_version(skb
);
2644 int cast_type
= qeth_l3_get_cast_type(card
, skb
);
2645 struct qeth_qdio_out_q
*queue
=
2646 card
->qdio
.out_qs
[card
->qdio
.do_prio_queueing
2647 || (cast_type
&& card
->info
.is_multicast_different
) ?
2648 qeth_get_priority_queue(card
, skb
, ipv
, cast_type
) :
2649 card
->qdio
.default_out_queue
];
2650 int tx_bytes
= skb
->len
;
2652 int data_offset
= -1;
2655 if (((card
->info
.type
== QETH_CARD_TYPE_IQD
) &&
2656 (((card
->options
.cq
!= QETH_CQ_ENABLED
) && !ipv
) ||
2657 ((card
->options
.cq
== QETH_CQ_ENABLED
) &&
2658 (be16_to_cpu(skb
->protocol
) != ETH_P_AF_IUCV
)))) ||
2659 card
->options
.sniffer
)
2662 if ((card
->state
!= CARD_STATE_UP
) || !card
->lan_online
) {
2663 card
->stats
.tx_carrier_errors
++;
2667 if ((cast_type
== RTN_BROADCAST
) &&
2668 (card
->info
.broadcast_capable
== 0))
2671 if (card
->options
.performance_stats
) {
2672 card
->perf_stats
.outbound_cnt
++;
2673 card
->perf_stats
.outbound_start_time
= qeth_get_micros();
2676 /* Ignore segment size from skb_is_gso(), 1 page is always used. */
2677 use_tso
= skb_is_gso(skb
) &&
2678 (qeth_get_ip_protocol(skb
) == IPPROTO_TCP
) && (ipv
== 4);
2680 if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
2682 data_offset
= ETH_HLEN
;
2683 hdr
= kmem_cache_alloc(qeth_core_header_cache
, GFP_ATOMIC
);
2688 /* create a clone with writeable headroom */
2689 new_skb
= skb_realloc_headroom(skb
, sizeof(struct qeth_hdr_tso
)
2695 skb_pull(new_skb
, ETH_HLEN
);
2698 if (ipv
!= 4 && skb_vlan_tag_present(new_skb
)) {
2699 skb_push(new_skb
, VLAN_HLEN
);
2700 skb_copy_to_linear_data(new_skb
, new_skb
->data
+ 4, 4);
2701 skb_copy_to_linear_data_offset(new_skb
, 4,
2702 new_skb
->data
+ 8, 4);
2703 skb_copy_to_linear_data_offset(new_skb
, 8,
2704 new_skb
->data
+ 12, 4);
2705 tag
= (__be16
*)(new_skb
->data
+ 12);
2706 *tag
= cpu_to_be16(ETH_P_8021Q
);
2707 *(tag
+ 1) = cpu_to_be16(skb_vlan_tag_get(new_skb
));
2711 netif_stop_queue(dev
);
2713 /* fix hardware limitation: as long as we do not have sbal
2714 * chaining we can not send long frag lists
2716 if ((card
->info
.type
!= QETH_CARD_TYPE_IQD
) &&
2717 ((use_tso
&& !qeth_l3_get_elements_no_tso(card
, new_skb
, 1)) ||
2718 (!use_tso
&& !qeth_get_elements_no(card
, new_skb
, 0, 0)))) {
2719 int lin_rc
= skb_linearize(new_skb
);
2721 if (card
->options
.performance_stats
) {
2723 card
->perf_stats
.tx_linfail
++;
2725 card
->perf_stats
.tx_lin
++;
2732 hdr
= skb_push(new_skb
, sizeof(struct qeth_hdr_tso
));
2733 memset(hdr
, 0, sizeof(struct qeth_hdr_tso
));
2734 qeth_l3_fill_header(card
, hdr
, new_skb
, ipv
, cast_type
);
2735 qeth_tso_fill_header(card
, hdr
, new_skb
);
2738 if (data_offset
< 0) {
2739 hdr
= skb_push(new_skb
, sizeof(struct qeth_hdr
));
2740 qeth_l3_fill_header(card
, hdr
, new_skb
, ipv
,
2743 if (be16_to_cpu(new_skb
->protocol
) == ETH_P_AF_IUCV
)
2744 qeth_l3_fill_af_iucv_hdr(card
, hdr
, new_skb
);
2746 qeth_l3_fill_header(card
, hdr
, new_skb
, ipv
,
2748 hdr
->hdr
.l3
.length
= new_skb
->len
- data_offset
;
2752 if (skb
->ip_summed
== CHECKSUM_PARTIAL
)
2753 qeth_l3_hdr_csum(card
, hdr
, new_skb
);
2756 elements
= use_tso
?
2757 qeth_l3_get_elements_no_tso(card
, new_skb
, hdr_elements
) :
2758 qeth_get_elements_no(card
, new_skb
, hdr_elements
,
2759 (data_offset
> 0) ? data_offset
: 0);
2761 if (data_offset
>= 0)
2762 kmem_cache_free(qeth_core_header_cache
, hdr
);
2765 elements
+= hdr_elements
;
2767 if (card
->info
.type
!= QETH_CARD_TYPE_IQD
) {
2770 len
= ((unsigned long)tcp_hdr(new_skb
) +
2771 tcp_hdrlen(new_skb
)) -
2772 (unsigned long)new_skb
->data
;
2774 len
= sizeof(struct qeth_hdr_layer3
);
2776 if (qeth_hdr_chk_and_bounce(new_skb
, &hdr
, len
))
2778 rc
= qeth_do_send_packet(card
, queue
, new_skb
, hdr
, elements
);
2780 rc
= qeth_do_send_packet_fast(card
, queue
, new_skb
, hdr
,
2784 card
->stats
.tx_packets
++;
2785 card
->stats
.tx_bytes
+= tx_bytes
;
2787 dev_kfree_skb_any(skb
);
2788 if (card
->options
.performance_stats
) {
2789 nr_frags
= skb_shinfo(new_skb
)->nr_frags
;
2791 card
->perf_stats
.large_send_bytes
+= tx_bytes
;
2792 card
->perf_stats
.large_send_cnt
++;
2795 card
->perf_stats
.sg_skbs_sent
++;
2796 /* nr_frags + skb->data */
2797 card
->perf_stats
.sg_frags_sent
+= nr_frags
+ 1;
2802 if (data_offset
>= 0)
2803 kmem_cache_free(qeth_core_header_cache
, hdr
);
2807 dev_kfree_skb_any(new_skb
);
2808 return NETDEV_TX_BUSY
;
2813 netif_wake_queue(dev
);
2814 if (card
->options
.performance_stats
)
2815 card
->perf_stats
.outbound_time
+= qeth_get_micros() -
2816 card
->perf_stats
.outbound_start_time
;
2820 card
->stats
.tx_dropped
++;
2821 card
->stats
.tx_errors
++;
2822 if ((new_skb
!= skb
) && new_skb
)
2823 dev_kfree_skb_any(new_skb
);
2824 dev_kfree_skb_any(skb
);
2825 netif_wake_queue(dev
);
2826 return NETDEV_TX_OK
;
2829 static int __qeth_l3_open(struct net_device
*dev
)
2831 struct qeth_card
*card
= dev
->ml_priv
;
2834 QETH_CARD_TEXT(card
, 4, "qethopen");
2835 if (card
->state
== CARD_STATE_UP
)
2837 if (card
->state
!= CARD_STATE_SOFTSETUP
)
2839 card
->data
.state
= CH_STATE_UP
;
2840 card
->state
= CARD_STATE_UP
;
2841 netif_start_queue(dev
);
2843 if (qdio_stop_irq(card
->data
.ccwdev
, 0) >= 0) {
2844 napi_enable(&card
->napi
);
2845 napi_schedule(&card
->napi
);
2851 static int qeth_l3_open(struct net_device
*dev
)
2853 struct qeth_card
*card
= dev
->ml_priv
;
2855 QETH_CARD_TEXT(card
, 5, "qethope_");
2856 if (qeth_wait_for_threads(card
, QETH_RECOVER_THREAD
)) {
2857 QETH_CARD_TEXT(card
, 3, "openREC");
2858 return -ERESTARTSYS
;
2860 return __qeth_l3_open(dev
);
2863 static int qeth_l3_stop(struct net_device
*dev
)
2865 struct qeth_card
*card
= dev
->ml_priv
;
2867 QETH_CARD_TEXT(card
, 4, "qethstop");
2868 netif_tx_disable(dev
);
2869 if (card
->state
== CARD_STATE_UP
) {
2870 card
->state
= CARD_STATE_SOFTSETUP
;
2871 napi_disable(&card
->napi
);
2876 static const struct ethtool_ops qeth_l3_ethtool_ops
= {
2877 .get_link
= ethtool_op_get_link
,
2878 .get_strings
= qeth_core_get_strings
,
2879 .get_ethtool_stats
= qeth_core_get_ethtool_stats
,
2880 .get_sset_count
= qeth_core_get_sset_count
,
2881 .get_drvinfo
= qeth_core_get_drvinfo
,
2882 .get_link_ksettings
= qeth_core_ethtool_get_link_ksettings
,
2886 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
2887 * NOARP on the netdevice is no option because it also turns off neighbor
2888 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
2889 * arp resolution but we want the hard header (packet socket will work
2892 static int qeth_l3_neigh_setup_noarp(struct neighbour
*n
)
2894 n
->nud_state
= NUD_NOARP
;
2895 memcpy(n
->ha
, "FAKELL", 6);
2896 n
->output
= n
->ops
->connected_output
;
2901 qeth_l3_neigh_setup(struct net_device
*dev
, struct neigh_parms
*np
)
2903 if (np
->tbl
->family
== AF_INET
)
2904 np
->neigh_setup
= qeth_l3_neigh_setup_noarp
;
2909 static const struct net_device_ops qeth_l3_netdev_ops
= {
2910 .ndo_open
= qeth_l3_open
,
2911 .ndo_stop
= qeth_l3_stop
,
2912 .ndo_get_stats
= qeth_get_stats
,
2913 .ndo_start_xmit
= qeth_l3_hard_start_xmit
,
2914 .ndo_validate_addr
= eth_validate_addr
,
2915 .ndo_set_rx_mode
= qeth_l3_set_multicast_list
,
2916 .ndo_do_ioctl
= qeth_do_ioctl
,
2917 .ndo_change_mtu
= qeth_change_mtu
,
2918 .ndo_fix_features
= qeth_fix_features
,
2919 .ndo_set_features
= qeth_set_features
,
2920 .ndo_vlan_rx_add_vid
= qeth_l3_vlan_rx_add_vid
,
2921 .ndo_vlan_rx_kill_vid
= qeth_l3_vlan_rx_kill_vid
,
2922 .ndo_tx_timeout
= qeth_tx_timeout
,
2925 static const struct net_device_ops qeth_l3_osa_netdev_ops
= {
2926 .ndo_open
= qeth_l3_open
,
2927 .ndo_stop
= qeth_l3_stop
,
2928 .ndo_get_stats
= qeth_get_stats
,
2929 .ndo_start_xmit
= qeth_l3_hard_start_xmit
,
2930 .ndo_validate_addr
= eth_validate_addr
,
2931 .ndo_set_rx_mode
= qeth_l3_set_multicast_list
,
2932 .ndo_do_ioctl
= qeth_do_ioctl
,
2933 .ndo_change_mtu
= qeth_change_mtu
,
2934 .ndo_fix_features
= qeth_fix_features
,
2935 .ndo_set_features
= qeth_set_features
,
2936 .ndo_vlan_rx_add_vid
= qeth_l3_vlan_rx_add_vid
,
2937 .ndo_vlan_rx_kill_vid
= qeth_l3_vlan_rx_kill_vid
,
2938 .ndo_tx_timeout
= qeth_tx_timeout
,
2939 .ndo_neigh_setup
= qeth_l3_neigh_setup
,
2942 static int qeth_l3_setup_netdev(struct qeth_card
*card
)
2946 if (card
->info
.type
== QETH_CARD_TYPE_OSD
||
2947 card
->info
.type
== QETH_CARD_TYPE_OSX
) {
2948 if ((card
->info
.link_type
== QETH_LINK_TYPE_LANE_TR
) ||
2949 (card
->info
.link_type
== QETH_LINK_TYPE_HSTR
)) {
2950 pr_info("qeth_l3: ignoring TR device\n");
2953 card
->dev
= alloc_etherdev(0);
2956 card
->dev
->netdev_ops
= &qeth_l3_osa_netdev_ops
;
2958 /*IPv6 address autoconfiguration stuff*/
2959 qeth_l3_get_unique_id(card
);
2960 if (!(card
->info
.unique_id
& UNIQUE_ID_NOT_BY_CARD
))
2961 card
->dev
->dev_id
= card
->info
.unique_id
&
2963 if (!card
->info
.guestlan
) {
2964 card
->dev
->hw_features
= NETIF_F_SG
|
2965 NETIF_F_RXCSUM
| NETIF_F_IP_CSUM
|
2967 card
->dev
->vlan_features
= NETIF_F_SG
|
2968 NETIF_F_RXCSUM
| NETIF_F_IP_CSUM
|
2972 } else if (card
->info
.type
== QETH_CARD_TYPE_IQD
) {
2973 card
->dev
= alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN
,
2977 card
->dev
->flags
|= IFF_NOARP
;
2978 card
->dev
->netdev_ops
= &qeth_l3_netdev_ops
;
2979 rc
= qeth_l3_iqd_read_initial_mac(card
);
2982 if (card
->options
.hsuid
[0])
2983 memcpy(card
->dev
->perm_addr
, card
->options
.hsuid
, 9);
2987 card
->dev
->ml_priv
= card
;
2988 card
->dev
->watchdog_timeo
= QETH_TX_TIMEOUT
;
2989 card
->dev
->mtu
= card
->info
.initial_mtu
;
2990 card
->dev
->min_mtu
= 64;
2991 card
->dev
->max_mtu
= ETH_MAX_MTU
;
2992 card
->dev
->ethtool_ops
= &qeth_l3_ethtool_ops
;
2993 card
->dev
->features
|= NETIF_F_HW_VLAN_CTAG_TX
|
2994 NETIF_F_HW_VLAN_CTAG_RX
|
2995 NETIF_F_HW_VLAN_CTAG_FILTER
;
2996 netif_keep_dst(card
->dev
);
2997 card
->dev
->gso_max_size
= (QETH_MAX_BUFFER_ELEMENTS(card
) - 1) *
3000 SET_NETDEV_DEV(card
->dev
, &card
->gdev
->dev
);
3001 netif_napi_add(card
->dev
, &card
->napi
, qeth_poll
, QETH_NAPI_WEIGHT
);
3002 netif_carrier_off(card
->dev
);
3003 return register_netdev(card
->dev
);
3006 static const struct device_type qeth_l3_devtype
= {
3007 .name
= "qeth_layer3",
3008 .groups
= qeth_l3_attr_groups
,
3011 static int qeth_l3_probe_device(struct ccwgroup_device
*gdev
)
3013 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
3016 if (gdev
->dev
.type
== &qeth_generic_devtype
) {
3017 rc
= qeth_l3_create_device_attributes(&gdev
->dev
);
3021 hash_init(card
->ip_htable
);
3022 hash_init(card
->ip_mc_htable
);
3023 card
->options
.layer2
= 0;
3024 card
->info
.hwtrap
= 0;
3028 static void qeth_l3_remove_device(struct ccwgroup_device
*cgdev
)
3030 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
3032 if (cgdev
->dev
.type
== &qeth_generic_devtype
)
3033 qeth_l3_remove_device_attributes(&cgdev
->dev
);
3035 qeth_set_allowed_threads(card
, 0, 1);
3036 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
3038 if (cgdev
->state
== CCWGROUP_ONLINE
)
3039 qeth_l3_set_offline(cgdev
);
3042 netif_napi_del(&card
->napi
);
3043 unregister_netdev(card
->dev
);
3047 qeth_l3_clear_ip_htable(card
, 0);
3048 qeth_l3_clear_ipato_list(card
);
3052 static int __qeth_l3_set_online(struct ccwgroup_device
*gdev
, int recovery_mode
)
3054 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
3056 enum qeth_card_states recover_flag
;
3058 mutex_lock(&card
->discipline_mutex
);
3059 mutex_lock(&card
->conf_mutex
);
3060 QETH_DBF_TEXT(SETUP
, 2, "setonlin");
3061 QETH_DBF_HEX(SETUP
, 2, &card
, sizeof(void *));
3063 recover_flag
= card
->state
;
3064 rc
= qeth_core_hardsetup_card(card
);
3066 QETH_DBF_TEXT_(SETUP
, 2, "2err%04x", rc
);
3071 if (!card
->dev
&& qeth_l3_setup_netdev(card
)) {
3076 if (qeth_is_diagass_supported(card
, QETH_DIAGS_CMD_TRAP
)) {
3077 if (card
->info
.hwtrap
&&
3078 qeth_hw_trap(card
, QETH_DIAGS_TRAP_ARM
))
3079 card
->info
.hwtrap
= 0;
3081 card
->info
.hwtrap
= 0;
3083 card
->state
= CARD_STATE_HARDSETUP
;
3084 memset(&card
->rx
, 0, sizeof(struct qeth_rx
));
3085 qeth_print_status_message(card
);
3088 QETH_DBF_TEXT(SETUP
, 2, "softsetp");
3090 rc
= qeth_l3_setadapter_parms(card
);
3092 QETH_DBF_TEXT_(SETUP
, 2, "2err%04x", rc
);
3093 if (!card
->options
.sniffer
) {
3094 rc
= qeth_l3_start_ipassists(card
);
3096 QETH_DBF_TEXT_(SETUP
, 2, "3err%d", rc
);
3099 rc
= qeth_l3_setrouting_v4(card
);
3101 QETH_DBF_TEXT_(SETUP
, 2, "4err%04x", rc
);
3102 rc
= qeth_l3_setrouting_v6(card
);
3104 QETH_DBF_TEXT_(SETUP
, 2, "5err%04x", rc
);
3106 netif_tx_disable(card
->dev
);
3108 rc
= qeth_init_qdio_queues(card
);
3110 QETH_DBF_TEXT_(SETUP
, 2, "6err%d", rc
);
3114 card
->state
= CARD_STATE_SOFTSETUP
;
3116 qeth_set_allowed_threads(card
, 0xffffffff, 0);
3117 qeth_l3_recover_ip(card
);
3118 if (card
->lan_online
)
3119 netif_carrier_on(card
->dev
);
3121 netif_carrier_off(card
->dev
);
3122 if (recover_flag
== CARD_STATE_RECOVER
) {
3125 __qeth_l3_open(card
->dev
);
3127 dev_open(card
->dev
);
3128 qeth_l3_set_multicast_list(card
->dev
);
3129 qeth_recover_features(card
->dev
);
3132 qeth_trace_features(card
);
3133 /* let user_space know that device is online */
3134 kobject_uevent(&gdev
->dev
.kobj
, KOBJ_CHANGE
);
3135 mutex_unlock(&card
->conf_mutex
);
3136 mutex_unlock(&card
->discipline_mutex
);
3139 qeth_l3_stop_card(card
, 0);
3140 ccw_device_set_offline(CARD_DDEV(card
));
3141 ccw_device_set_offline(CARD_WDEV(card
));
3142 ccw_device_set_offline(CARD_RDEV(card
));
3143 qdio_free(CARD_DDEV(card
));
3144 if (recover_flag
== CARD_STATE_RECOVER
)
3145 card
->state
= CARD_STATE_RECOVER
;
3147 card
->state
= CARD_STATE_DOWN
;
3148 mutex_unlock(&card
->conf_mutex
);
3149 mutex_unlock(&card
->discipline_mutex
);
3153 static int qeth_l3_set_online(struct ccwgroup_device
*gdev
)
3155 return __qeth_l3_set_online(gdev
, 0);
3158 static int __qeth_l3_set_offline(struct ccwgroup_device
*cgdev
,
3161 struct qeth_card
*card
= dev_get_drvdata(&cgdev
->dev
);
3162 int rc
= 0, rc2
= 0, rc3
= 0;
3163 enum qeth_card_states recover_flag
;
3165 mutex_lock(&card
->discipline_mutex
);
3166 mutex_lock(&card
->conf_mutex
);
3167 QETH_DBF_TEXT(SETUP
, 3, "setoffl");
3168 QETH_DBF_HEX(SETUP
, 3, &card
, sizeof(void *));
3170 if (card
->dev
&& netif_carrier_ok(card
->dev
))
3171 netif_carrier_off(card
->dev
);
3172 recover_flag
= card
->state
;
3173 if ((!recovery_mode
&& card
->info
.hwtrap
) || card
->info
.hwtrap
== 2) {
3174 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
3175 card
->info
.hwtrap
= 1;
3177 qeth_l3_stop_card(card
, recovery_mode
);
3178 if ((card
->options
.cq
== QETH_CQ_ENABLED
) && card
->dev
) {
3180 call_netdevice_notifiers(NETDEV_REBOOT
, card
->dev
);
3183 rc
= ccw_device_set_offline(CARD_DDEV(card
));
3184 rc2
= ccw_device_set_offline(CARD_WDEV(card
));
3185 rc3
= ccw_device_set_offline(CARD_RDEV(card
));
3187 rc
= (rc2
) ? rc2
: rc3
;
3189 QETH_DBF_TEXT_(SETUP
, 2, "1err%d", rc
);
3190 qdio_free(CARD_DDEV(card
));
3191 if (recover_flag
== CARD_STATE_UP
)
3192 card
->state
= CARD_STATE_RECOVER
;
3193 /* let user_space know that device is offline */
3194 kobject_uevent(&cgdev
->dev
.kobj
, KOBJ_CHANGE
);
3195 mutex_unlock(&card
->conf_mutex
);
3196 mutex_unlock(&card
->discipline_mutex
);
3200 static int qeth_l3_set_offline(struct ccwgroup_device
*cgdev
)
3202 return __qeth_l3_set_offline(cgdev
, 0);
3205 static int qeth_l3_recover(void *ptr
)
3207 struct qeth_card
*card
;
3210 card
= (struct qeth_card
*) ptr
;
3211 QETH_CARD_TEXT(card
, 2, "recover1");
3212 QETH_CARD_HEX(card
, 2, &card
, sizeof(void *));
3213 if (!qeth_do_run_thread(card
, QETH_RECOVER_THREAD
))
3215 QETH_CARD_TEXT(card
, 2, "recover2");
3216 dev_warn(&card
->gdev
->dev
,
3217 "A recovery process has been started for the device\n");
3218 qeth_set_recovery_task(card
);
3219 __qeth_l3_set_offline(card
->gdev
, 1);
3220 rc
= __qeth_l3_set_online(card
->gdev
, 1);
3222 dev_info(&card
->gdev
->dev
,
3223 "Device successfully recovered!\n");
3225 qeth_close_dev(card
);
3226 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
3227 "failed to recover an error on the device\n");
3229 qeth_clear_recovery_task(card
);
3230 qeth_clear_thread_start_bit(card
, QETH_RECOVER_THREAD
);
3231 qeth_clear_thread_running_bit(card
, QETH_RECOVER_THREAD
);
3235 static int qeth_l3_pm_suspend(struct ccwgroup_device
*gdev
)
3237 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
3240 netif_device_detach(card
->dev
);
3241 qeth_set_allowed_threads(card
, 0, 1);
3242 wait_event(card
->wait_q
, qeth_threads_running(card
, 0xffffffff) == 0);
3243 if (gdev
->state
== CCWGROUP_OFFLINE
)
3245 if (card
->state
== CARD_STATE_UP
) {
3246 if (card
->info
.hwtrap
)
3247 qeth_hw_trap(card
, QETH_DIAGS_TRAP_DISARM
);
3248 __qeth_l3_set_offline(card
->gdev
, 1);
3250 __qeth_l3_set_offline(card
->gdev
, 0);
3254 static int qeth_l3_pm_resume(struct ccwgroup_device
*gdev
)
3256 struct qeth_card
*card
= dev_get_drvdata(&gdev
->dev
);
3259 if (gdev
->state
== CCWGROUP_OFFLINE
)
3262 if (card
->state
== CARD_STATE_RECOVER
) {
3263 rc
= __qeth_l3_set_online(card
->gdev
, 1);
3266 dev_close(card
->dev
);
3270 rc
= __qeth_l3_set_online(card
->gdev
, 0);
3272 qeth_set_allowed_threads(card
, 0xffffffff, 0);
3274 netif_device_attach(card
->dev
);
3276 dev_warn(&card
->gdev
->dev
, "The qeth device driver "
3277 "failed to recover an error on the device\n");
3281 /* Returns zero if the command is successfully "consumed" */
3282 static int qeth_l3_control_event(struct qeth_card
*card
,
3283 struct qeth_ipa_cmd
*cmd
)
3288 struct qeth_discipline qeth_l3_discipline
= {
3289 .devtype
= &qeth_l3_devtype
,
3290 .start_poll
= qeth_qdio_start_poll
,
3291 .input_handler
= (qdio_handler_t
*) qeth_qdio_input_handler
,
3292 .output_handler
= (qdio_handler_t
*) qeth_qdio_output_handler
,
3293 .process_rx_buffer
= qeth_l3_process_inbound_buffer
,
3294 .recover
= qeth_l3_recover
,
3295 .setup
= qeth_l3_probe_device
,
3296 .remove
= qeth_l3_remove_device
,
3297 .set_online
= qeth_l3_set_online
,
3298 .set_offline
= qeth_l3_set_offline
,
3299 .freeze
= qeth_l3_pm_suspend
,
3300 .thaw
= qeth_l3_pm_resume
,
3301 .restore
= qeth_l3_pm_resume
,
3302 .do_ioctl
= qeth_l3_do_ioctl
,
3303 .control_event_handler
= qeth_l3_control_event
,
3305 EXPORT_SYMBOL_GPL(qeth_l3_discipline
);
3307 static int qeth_l3_ip_event(struct notifier_block
*this,
3308 unsigned long event
, void *ptr
)
3311 struct in_ifaddr
*ifa
= (struct in_ifaddr
*)ptr
;
3312 struct net_device
*dev
= (struct net_device
*)ifa
->ifa_dev
->dev
;
3313 struct qeth_ipaddr
*addr
;
3314 struct qeth_card
*card
;
3316 if (dev_net(dev
) != &init_net
)
3319 card
= qeth_l3_get_card_from_dev(dev
);
3322 QETH_CARD_TEXT(card
, 3, "ipevent");
3324 addr
= qeth_l3_get_addr_buffer(QETH_PROT_IPV4
);
3326 addr
->u
.a4
.addr
= be32_to_cpu(ifa
->ifa_address
);
3327 addr
->u
.a4
.mask
= be32_to_cpu(ifa
->ifa_mask
);
3328 addr
->type
= QETH_IP_TYPE_NORMAL
;
3334 spin_lock_bh(&card
->ip_lock
);
3335 qeth_l3_add_ip(card
, addr
);
3336 spin_unlock_bh(&card
->ip_lock
);
3339 spin_lock_bh(&card
->ip_lock
);
3340 qeth_l3_delete_ip(card
, addr
);
3341 spin_unlock_bh(&card
->ip_lock
);
3349 static struct notifier_block qeth_l3_ip_notifier
= {
3354 #ifdef CONFIG_QETH_IPV6
3356 * IPv6 event handler
3358 static int qeth_l3_ip6_event(struct notifier_block
*this,
3359 unsigned long event
, void *ptr
)
3361 struct inet6_ifaddr
*ifa
= (struct inet6_ifaddr
*)ptr
;
3362 struct net_device
*dev
= (struct net_device
*)ifa
->idev
->dev
;
3363 struct qeth_ipaddr
*addr
;
3364 struct qeth_card
*card
;
3366 card
= qeth_l3_get_card_from_dev(dev
);
3369 QETH_CARD_TEXT(card
, 3, "ip6event");
3370 if (!qeth_is_supported(card
, IPA_IPV6
))
3373 addr
= qeth_l3_get_addr_buffer(QETH_PROT_IPV6
);
3375 memcpy(&addr
->u
.a6
.addr
, &ifa
->addr
, sizeof(struct in6_addr
));
3376 addr
->u
.a6
.pfxlen
= ifa
->prefix_len
;
3377 addr
->type
= QETH_IP_TYPE_NORMAL
;
3383 spin_lock_bh(&card
->ip_lock
);
3384 qeth_l3_add_ip(card
, addr
);
3385 spin_unlock_bh(&card
->ip_lock
);
3388 spin_lock_bh(&card
->ip_lock
);
3389 qeth_l3_delete_ip(card
, addr
);
3390 spin_unlock_bh(&card
->ip_lock
);
3398 static struct notifier_block qeth_l3_ip6_notifier
= {
3404 static int qeth_l3_register_notifiers(void)
3408 QETH_DBF_TEXT(SETUP
, 5, "regnotif");
3409 rc
= register_inetaddr_notifier(&qeth_l3_ip_notifier
);
3412 #ifdef CONFIG_QETH_IPV6
3413 rc
= register_inet6addr_notifier(&qeth_l3_ip6_notifier
);
3415 unregister_inetaddr_notifier(&qeth_l3_ip_notifier
);
3419 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
3424 static void qeth_l3_unregister_notifiers(void)
3427 QETH_DBF_TEXT(SETUP
, 5, "unregnot");
3428 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier
));
3429 #ifdef CONFIG_QETH_IPV6
3430 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier
));
3431 #endif /* QETH_IPV6 */
3434 static int __init
qeth_l3_init(void)
3438 pr_info("register layer 3 discipline\n");
3439 rc
= qeth_l3_register_notifiers();
3443 static void __exit
qeth_l3_exit(void)
3445 qeth_l3_unregister_notifiers();
3446 pr_info("unregister layer 3 discipline\n");
3449 module_init(qeth_l3_init
);
3450 module_exit(qeth_l3_exit
);
3451 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3452 MODULE_DESCRIPTION("qeth layer 3 discipline");
3453 MODULE_LICENSE("GPL");