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ab9953ff | 1 | // SPDX-License-Identifier: GPL-2.0 |
4a71df50 | 2 | /* |
bbcfcdc8 | 3 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
4 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
5 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
6 | * Thomas Spatzier <tspat@de.ibm.com>, | |
7 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
8 | */ | |
9 | ||
74eacdb9 FB |
10 | #define KMSG_COMPONENT "qeth" |
11 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
12 | ||
4a71df50 FB |
13 | #include <linux/module.h> |
14 | #include <linux/moduleparam.h> | |
7ff0bcf6 | 15 | #include <linux/bitops.h> |
4a71df50 FB |
16 | #include <linux/string.h> |
17 | #include <linux/errno.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/etherdevice.h> | |
4a71df50 | 20 | #include <linux/ip.h> |
64ef8957 | 21 | #include <linux/ipv6.h> |
4a71df50 FB |
22 | #include <linux/inetdevice.h> |
23 | #include <linux/igmp.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
7ff0bcf6 | 25 | #include <linux/if_vlan.h> |
4a71df50 FB |
26 | |
27 | #include <net/ip.h> | |
28 | #include <net/arp.h> | |
87e7597b DM |
29 | #include <net/route.h> |
30 | #include <net/ip6_fib.h> | |
64ef8957 | 31 | #include <net/ip6_checksum.h> |
b3332930 | 32 | #include <net/iucv/af_iucv.h> |
5f78e29c | 33 | #include <linux/hashtable.h> |
4a71df50 | 34 | |
4a71df50 | 35 | #include "qeth_l3.h" |
4a71df50 | 36 | |
d0ddf30f | 37 | |
4a71df50 | 38 | static int qeth_l3_set_offline(struct ccwgroup_device *); |
4a71df50 FB |
39 | static int qeth_l3_stop(struct net_device *); |
40 | static void qeth_l3_set_multicast_list(struct net_device *); | |
4a71df50 FB |
41 | static int qeth_l3_register_addr_entry(struct qeth_card *, |
42 | struct qeth_ipaddr *); | |
43 | static int qeth_l3_deregister_addr_entry(struct qeth_card *, | |
44 | struct qeth_ipaddr *); | |
4a71df50 | 45 | |
4a71df50 FB |
46 | static int qeth_l3_isxdigit(char *buf) |
47 | { | |
48 | while (*buf) { | |
49 | if (!isxdigit(*buf++)) | |
50 | return 0; | |
51 | } | |
52 | return 1; | |
53 | } | |
54 | ||
56530d68 | 55 | static void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf) |
4a71df50 | 56 | { |
5f78e29c | 57 | sprintf(buf, "%pI4", addr); |
4a71df50 FB |
58 | } |
59 | ||
56530d68 | 60 | static int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr) |
4a71df50 FB |
61 | { |
62 | int count = 0, rc = 0; | |
a68be015 | 63 | unsigned int in[4]; |
4a71df50 FB |
64 | char c; |
65 | ||
66 | rc = sscanf(buf, "%u.%u.%u.%u%c", | |
67 | &in[0], &in[1], &in[2], &in[3], &c); | |
68 | if (rc != 4 && (rc != 5 || c != '\n')) | |
69 | return -EINVAL; | |
70 | for (count = 0; count < 4; count++) { | |
71 | if (in[count] > 255) | |
72 | return -EINVAL; | |
73 | addr[count] = in[count]; | |
74 | } | |
75 | return 0; | |
76 | } | |
77 | ||
56530d68 | 78 | static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf) |
4a71df50 | 79 | { |
963a9fd2 | 80 | sprintf(buf, "%pI6", addr); |
4a71df50 FB |
81 | } |
82 | ||
56530d68 | 83 | static int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr) |
4a71df50 FB |
84 | { |
85 | const char *end, *end_tmp, *start; | |
86 | __u16 *in; | |
87 | char num[5]; | |
88 | int num2, cnt, out, found, save_cnt; | |
89 | unsigned short in_tmp[8] = {0, }; | |
90 | ||
91 | cnt = out = found = save_cnt = num2 = 0; | |
92 | end = start = buf; | |
93 | in = (__u16 *) addr; | |
94 | memset(in, 0, 16); | |
95 | while (*end) { | |
96 | end = strchr(start, ':'); | |
97 | if (end == NULL) { | |
98 | end = buf + strlen(buf); | |
99 | end_tmp = strchr(start, '\n'); | |
100 | if (end_tmp != NULL) | |
101 | end = end_tmp; | |
102 | out = 1; | |
103 | } | |
104 | if ((end - start)) { | |
105 | memset(num, 0, 5); | |
106 | if ((end - start) > 4) | |
107 | return -EINVAL; | |
108 | memcpy(num, start, end - start); | |
109 | if (!qeth_l3_isxdigit(num)) | |
110 | return -EINVAL; | |
111 | sscanf(start, "%x", &num2); | |
112 | if (found) | |
113 | in_tmp[save_cnt++] = num2; | |
114 | else | |
115 | in[cnt++] = num2; | |
116 | if (out) | |
117 | break; | |
118 | } else { | |
119 | if (found) | |
120 | return -EINVAL; | |
121 | found = 1; | |
122 | } | |
123 | start = ++end; | |
124 | } | |
125 | if (cnt + save_cnt > 8) | |
126 | return -EINVAL; | |
127 | cnt = 7; | |
128 | while (save_cnt) | |
129 | in[cnt--] = in_tmp[--save_cnt]; | |
130 | return 0; | |
131 | } | |
132 | ||
133 | void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr, | |
134 | char *buf) | |
135 | { | |
136 | if (proto == QETH_PROT_IPV4) | |
137 | qeth_l3_ipaddr4_to_string(addr, buf); | |
138 | else if (proto == QETH_PROT_IPV6) | |
139 | qeth_l3_ipaddr6_to_string(addr, buf); | |
140 | } | |
141 | ||
142 | int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto, | |
143 | __u8 *addr) | |
144 | { | |
145 | if (proto == QETH_PROT_IPV4) | |
146 | return qeth_l3_string_to_ipaddr4(buf, addr); | |
147 | else if (proto == QETH_PROT_IPV6) | |
148 | return qeth_l3_string_to_ipaddr6(buf, addr); | |
149 | else | |
150 | return -EINVAL; | |
151 | } | |
152 | ||
153 | static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len) | |
154 | { | |
155 | int i, j; | |
156 | u8 octet; | |
157 | ||
158 | for (i = 0; i < len; ++i) { | |
159 | octet = addr[i]; | |
160 | for (j = 7; j >= 0; --j) { | |
161 | bits[i*8 + j] = octet & 1; | |
162 | octet >>= 1; | |
163 | } | |
164 | } | |
165 | } | |
166 | ||
02f510f3 JW |
167 | static bool qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card, |
168 | struct qeth_ipaddr *addr) | |
4a71df50 FB |
169 | { |
170 | struct qeth_ipato_entry *ipatoe; | |
171 | u8 addr_bits[128] = {0, }; | |
172 | u8 ipatoe_bits[128] = {0, }; | |
173 | int rc = 0; | |
174 | ||
175 | if (!card->ipato.enabled) | |
176 | return 0; | |
b22d73d6 JW |
177 | if (addr->type != QETH_IP_TYPE_NORMAL) |
178 | return 0; | |
4a71df50 FB |
179 | |
180 | qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits, | |
181 | (addr->proto == QETH_PROT_IPV4)? 4:16); | |
182 | list_for_each_entry(ipatoe, &card->ipato.entries, entry) { | |
183 | if (addr->proto != ipatoe->proto) | |
184 | continue; | |
185 | qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits, | |
186 | (ipatoe->proto == QETH_PROT_IPV4) ? | |
187 | 4 : 16); | |
188 | if (addr->proto == QETH_PROT_IPV4) | |
189 | rc = !memcmp(addr_bits, ipatoe_bits, | |
190 | min(32, ipatoe->mask_bits)); | |
191 | else | |
192 | rc = !memcmp(addr_bits, ipatoe_bits, | |
193 | min(128, ipatoe->mask_bits)); | |
194 | if (rc) | |
195 | break; | |
196 | } | |
197 | /* invert? */ | |
198 | if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4) | |
199 | rc = !rc; | |
200 | else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6) | |
201 | rc = !rc; | |
202 | ||
203 | return rc; | |
204 | } | |
205 | ||
5f78e29c LD |
206 | inline int |
207 | qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr *addr1, struct qeth_ipaddr *addr2) | |
4a71df50 | 208 | { |
5f78e29c LD |
209 | return addr1->proto == addr2->proto && |
210 | !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) && | |
211 | !memcmp(&addr1->mac, &addr2->mac, sizeof(addr1->mac)); | |
212 | } | |
4a71df50 | 213 | |
5f78e29c LD |
214 | static struct qeth_ipaddr * |
215 | qeth_l3_ip_from_hash(struct qeth_card *card, struct qeth_ipaddr *tmp_addr) | |
216 | { | |
217 | struct qeth_ipaddr *addr; | |
218 | ||
219 | if (tmp_addr->is_multicast) { | |
220 | hash_for_each_possible(card->ip_mc_htable, addr, | |
221 | hnode, qeth_l3_ipaddr_hash(tmp_addr)) | |
222 | if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr)) | |
223 | return addr; | |
4a71df50 | 224 | } else { |
5f78e29c LD |
225 | hash_for_each_possible(card->ip_htable, addr, |
226 | hnode, qeth_l3_ipaddr_hash(tmp_addr)) | |
227 | if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr)) | |
228 | return addr; | |
4a71df50 | 229 | } |
5f78e29c LD |
230 | |
231 | return NULL; | |
4a71df50 FB |
232 | } |
233 | ||
5f78e29c | 234 | int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr) |
4a71df50 | 235 | { |
4a71df50 | 236 | int rc = 0; |
5f78e29c | 237 | struct qeth_ipaddr *addr; |
4a71df50 | 238 | |
847a50fd | 239 | QETH_CARD_TEXT(card, 4, "delip"); |
4a71df50 | 240 | |
5f78e29c LD |
241 | if (tmp_addr->proto == QETH_PROT_IPV4) |
242 | QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4); | |
4a71df50 | 243 | else { |
5f78e29c LD |
244 | QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8); |
245 | QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8); | |
4a71df50 | 246 | } |
5f78e29c LD |
247 | |
248 | addr = qeth_l3_ip_from_hash(card, tmp_addr); | |
249 | if (!addr) | |
250 | return -ENOENT; | |
251 | ||
252 | addr->ref_counter--; | |
cb816192 KM |
253 | if (addr->ref_counter > 0 && (addr->type == QETH_IP_TYPE_NORMAL || |
254 | addr->type == QETH_IP_TYPE_RXIP)) | |
5f78e29c LD |
255 | return rc; |
256 | if (addr->in_progress) | |
257 | return -EINPROGRESS; | |
258 | ||
a7531c1c UB |
259 | if (!qeth_card_hw_is_reachable(card)) { |
260 | addr->disp_flag = QETH_DISP_ADDR_DELETE; | |
261 | return 0; | |
262 | } | |
263 | ||
5f78e29c LD |
264 | rc = qeth_l3_deregister_addr_entry(card, addr); |
265 | ||
266 | hash_del(&addr->hnode); | |
267 | kfree(addr); | |
268 | ||
4a71df50 FB |
269 | return rc; |
270 | } | |
271 | ||
5f78e29c | 272 | int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr) |
4a71df50 | 273 | { |
4a71df50 | 274 | int rc = 0; |
5f78e29c | 275 | struct qeth_ipaddr *addr; |
4a71df50 | 276 | |
847a50fd | 277 | QETH_CARD_TEXT(card, 4, "addip"); |
5f78e29c LD |
278 | |
279 | if (tmp_addr->proto == QETH_PROT_IPV4) | |
280 | QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4); | |
4a71df50 | 281 | else { |
5f78e29c LD |
282 | QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8); |
283 | QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8); | |
284 | } | |
285 | ||
286 | addr = qeth_l3_ip_from_hash(card, tmp_addr); | |
287 | if (!addr) { | |
288 | addr = qeth_l3_get_addr_buffer(tmp_addr->proto); | |
289 | if (!addr) | |
290 | return -ENOMEM; | |
291 | ||
292 | memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr)); | |
293 | addr->ref_counter = 1; | |
294 | ||
b22d73d6 | 295 | if (qeth_l3_is_addr_covered_by_ipato(card, addr)) { |
5f78e29c LD |
296 | QETH_CARD_TEXT(card, 2, "tkovaddr"); |
297 | addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; | |
298 | } | |
299 | hash_add(card->ip_htable, &addr->hnode, | |
300 | qeth_l3_ipaddr_hash(addr)); | |
301 | ||
a7531c1c UB |
302 | if (!qeth_card_hw_is_reachable(card)) { |
303 | addr->disp_flag = QETH_DISP_ADDR_ADD; | |
304 | return 0; | |
305 | } | |
306 | ||
5f78e29c LD |
307 | /* qeth_l3_register_addr_entry can go to sleep |
308 | * if we add a IPV4 addr. It is caused by the reason | |
309 | * that SETIP ipa cmd starts ARP staff for IPV4 addr. | |
310 | * Thus we should unlock spinlock, and make a protection | |
311 | * using in_progress variable to indicate that there is | |
312 | * an hardware operation with this IPV4 address | |
313 | */ | |
314 | if (addr->proto == QETH_PROT_IPV4) { | |
315 | addr->in_progress = 1; | |
316 | spin_unlock_bh(&card->ip_lock); | |
317 | rc = qeth_l3_register_addr_entry(card, addr); | |
318 | spin_lock_bh(&card->ip_lock); | |
319 | addr->in_progress = 0; | |
320 | } else | |
321 | rc = qeth_l3_register_addr_entry(card, addr); | |
322 | ||
323 | if (!rc || (rc == IPA_RC_DUPLICATE_IP_ADDRESS) || | |
324 | (rc == IPA_RC_LAN_OFFLINE)) { | |
325 | addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING; | |
326 | if (addr->ref_counter < 1) { | |
327 | qeth_l3_delete_ip(card, addr); | |
328 | kfree(addr); | |
329 | } | |
330 | } else { | |
331 | hash_del(&addr->hnode); | |
332 | kfree(addr); | |
333 | } | |
334 | } else { | |
cb816192 KM |
335 | if (addr->type == QETH_IP_TYPE_NORMAL || |
336 | addr->type == QETH_IP_TYPE_RXIP) | |
337 | addr->ref_counter++; | |
4a71df50 | 338 | } |
5f78e29c | 339 | |
4a71df50 FB |
340 | return rc; |
341 | } | |
342 | ||
343 | ||
b3332930 | 344 | struct qeth_ipaddr *qeth_l3_get_addr_buffer( |
4a71df50 FB |
345 | enum qeth_prot_versions prot) |
346 | { | |
347 | struct qeth_ipaddr *addr; | |
348 | ||
349 | addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC); | |
5f78e29c | 350 | if (!addr) |
4a71df50 | 351 | return NULL; |
5f78e29c | 352 | |
4a71df50 | 353 | addr->type = QETH_IP_TYPE_NORMAL; |
5f78e29c | 354 | addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING; |
4a71df50 | 355 | addr->proto = prot; |
4a71df50 | 356 | |
5f78e29c | 357 | return addr; |
4a71df50 FB |
358 | } |
359 | ||
5f78e29c | 360 | static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover) |
4a71df50 FB |
361 | { |
362 | struct qeth_ipaddr *addr; | |
5f78e29c LD |
363 | struct hlist_node *tmp; |
364 | int i; | |
4a71df50 | 365 | |
5f78e29c | 366 | QETH_CARD_TEXT(card, 4, "clearip"); |
4a71df50 | 367 | |
5f78e29c | 368 | if (recover && card->options.sniffer) |
76b11f8e | 369 | return; |
f154b79c | 370 | |
5f78e29c LD |
371 | spin_lock_bh(&card->ip_lock); |
372 | ||
373 | hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) { | |
374 | if (!recover) { | |
375 | hash_del(&addr->hnode); | |
376 | kfree(addr); | |
4a71df50 FB |
377 | continue; |
378 | } | |
5f78e29c | 379 | addr->disp_flag = QETH_DISP_ADDR_ADD; |
4a71df50 | 380 | } |
4a71df50 | 381 | |
5f78e29c | 382 | spin_unlock_bh(&card->ip_lock); |
4a71df50 | 383 | |
5f78e29c LD |
384 | spin_lock_bh(&card->mclock); |
385 | ||
386 | hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) { | |
387 | hash_del(&addr->hnode); | |
4a71df50 FB |
388 | kfree(addr); |
389 | } | |
390 | ||
5f78e29c LD |
391 | spin_unlock_bh(&card->mclock); |
392 | ||
4a71df50 | 393 | |
5f78e29c LD |
394 | } |
395 | static void qeth_l3_recover_ip(struct qeth_card *card) | |
4a71df50 | 396 | { |
5f78e29c LD |
397 | struct qeth_ipaddr *addr; |
398 | struct hlist_node *tmp; | |
399 | int i; | |
400 | int rc; | |
4a71df50 | 401 | |
a7531c1c | 402 | QETH_CARD_TEXT(card, 4, "recovrip"); |
5f78e29c LD |
403 | |
404 | spin_lock_bh(&card->ip_lock); | |
405 | ||
406 | hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) { | |
a7531c1c UB |
407 | if (addr->disp_flag == QETH_DISP_ADDR_DELETE) { |
408 | qeth_l3_deregister_addr_entry(card, addr); | |
409 | hash_del(&addr->hnode); | |
410 | kfree(addr); | |
411 | } else if (addr->disp_flag == QETH_DISP_ADDR_ADD) { | |
5f78e29c LD |
412 | if (addr->proto == QETH_PROT_IPV4) { |
413 | addr->in_progress = 1; | |
414 | spin_unlock_bh(&card->ip_lock); | |
415 | rc = qeth_l3_register_addr_entry(card, addr); | |
416 | spin_lock_bh(&card->ip_lock); | |
417 | addr->in_progress = 0; | |
418 | } else | |
419 | rc = qeth_l3_register_addr_entry(card, addr); | |
420 | ||
421 | if (!rc) { | |
422 | addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING; | |
a7531c1c | 423 | if (addr->ref_counter < 1) |
5f78e29c | 424 | qeth_l3_delete_ip(card, addr); |
5f78e29c LD |
425 | } else { |
426 | hash_del(&addr->hnode); | |
427 | kfree(addr); | |
428 | } | |
429 | } | |
430 | } | |
4a71df50 | 431 | |
5f78e29c | 432 | spin_unlock_bh(&card->ip_lock); |
4a71df50 | 433 | |
4a71df50 FB |
434 | } |
435 | ||
436 | static int qeth_l3_send_setdelmc(struct qeth_card *card, | |
437 | struct qeth_ipaddr *addr, int ipacmd) | |
438 | { | |
439 | int rc; | |
440 | struct qeth_cmd_buffer *iob; | |
441 | struct qeth_ipa_cmd *cmd; | |
442 | ||
847a50fd | 443 | QETH_CARD_TEXT(card, 4, "setdelmc"); |
4a71df50 FB |
444 | |
445 | iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); | |
1aec42bc TR |
446 | if (!iob) |
447 | return -ENOMEM; | |
4a71df50 FB |
448 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
449 | memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN); | |
450 | if (addr->proto == QETH_PROT_IPV6) | |
451 | memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr, | |
452 | sizeof(struct in6_addr)); | |
453 | else | |
454 | memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4); | |
455 | ||
456 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
457 | ||
458 | return rc; | |
459 | } | |
460 | ||
461 | static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len) | |
462 | { | |
463 | int i, j; | |
464 | for (i = 0; i < 16; i++) { | |
465 | j = (len) - (i * 8); | |
466 | if (j >= 8) | |
467 | netmask[i] = 0xff; | |
468 | else if (j > 0) | |
469 | netmask[i] = (u8)(0xFF00 >> j); | |
470 | else | |
471 | netmask[i] = 0; | |
472 | } | |
473 | } | |
474 | ||
475 | static int qeth_l3_send_setdelip(struct qeth_card *card, | |
476 | struct qeth_ipaddr *addr, int ipacmd, unsigned int flags) | |
477 | { | |
478 | int rc; | |
479 | struct qeth_cmd_buffer *iob; | |
480 | struct qeth_ipa_cmd *cmd; | |
481 | __u8 netmask[16]; | |
482 | ||
847a50fd CO |
483 | QETH_CARD_TEXT(card, 4, "setdelip"); |
484 | QETH_CARD_TEXT_(card, 4, "flags%02X", flags); | |
4a71df50 FB |
485 | |
486 | iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); | |
1aec42bc TR |
487 | if (!iob) |
488 | return -ENOMEM; | |
4a71df50 FB |
489 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
490 | if (addr->proto == QETH_PROT_IPV6) { | |
491 | memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr, | |
492 | sizeof(struct in6_addr)); | |
493 | qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen); | |
494 | memcpy(cmd->data.setdelip6.mask, netmask, | |
495 | sizeof(struct in6_addr)); | |
496 | cmd->data.setdelip6.flags = flags; | |
497 | } else { | |
498 | memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4); | |
499 | memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4); | |
500 | cmd->data.setdelip4.flags = flags; | |
501 | } | |
502 | ||
503 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
504 | ||
505 | return rc; | |
506 | } | |
507 | ||
508 | static int qeth_l3_send_setrouting(struct qeth_card *card, | |
509 | enum qeth_routing_types type, enum qeth_prot_versions prot) | |
510 | { | |
511 | int rc; | |
512 | struct qeth_ipa_cmd *cmd; | |
513 | struct qeth_cmd_buffer *iob; | |
514 | ||
847a50fd | 515 | QETH_CARD_TEXT(card, 4, "setroutg"); |
4a71df50 | 516 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot); |
1aec42bc TR |
517 | if (!iob) |
518 | return -ENOMEM; | |
4a71df50 FB |
519 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
520 | cmd->data.setrtg.type = (type); | |
521 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
522 | ||
523 | return rc; | |
524 | } | |
525 | ||
82e2e782 | 526 | static int qeth_l3_correct_routing_type(struct qeth_card *card, |
4a71df50 FB |
527 | enum qeth_routing_types *type, enum qeth_prot_versions prot) |
528 | { | |
529 | if (card->info.type == QETH_CARD_TYPE_IQD) { | |
530 | switch (*type) { | |
531 | case NO_ROUTER: | |
532 | case PRIMARY_CONNECTOR: | |
533 | case SECONDARY_CONNECTOR: | |
534 | case MULTICAST_ROUTER: | |
82e2e782 | 535 | return 0; |
4a71df50 FB |
536 | default: |
537 | goto out_inval; | |
538 | } | |
539 | } else { | |
540 | switch (*type) { | |
541 | case NO_ROUTER: | |
542 | case PRIMARY_ROUTER: | |
543 | case SECONDARY_ROUTER: | |
82e2e782 | 544 | return 0; |
4a71df50 FB |
545 | case MULTICAST_ROUTER: |
546 | if (qeth_is_ipafunc_supported(card, prot, | |
547 | IPA_OSA_MC_ROUTER)) | |
82e2e782 | 548 | return 0; |
4a71df50 FB |
549 | default: |
550 | goto out_inval; | |
551 | } | |
552 | } | |
553 | out_inval: | |
4a71df50 | 554 | *type = NO_ROUTER; |
82e2e782 | 555 | return -EINVAL; |
4a71df50 FB |
556 | } |
557 | ||
558 | int qeth_l3_setrouting_v4(struct qeth_card *card) | |
559 | { | |
560 | int rc; | |
561 | ||
847a50fd | 562 | QETH_CARD_TEXT(card, 3, "setrtg4"); |
4a71df50 | 563 | |
82e2e782 | 564 | rc = qeth_l3_correct_routing_type(card, &card->options.route4.type, |
4a71df50 | 565 | QETH_PROT_IPV4); |
82e2e782 SR |
566 | if (rc) |
567 | return rc; | |
4a71df50 FB |
568 | |
569 | rc = qeth_l3_send_setrouting(card, card->options.route4.type, | |
570 | QETH_PROT_IPV4); | |
571 | if (rc) { | |
572 | card->options.route4.type = NO_ROUTER; | |
14cc21b6 FB |
573 | QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type" |
574 | " on %s. Type set to 'no router'.\n", rc, | |
575 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
576 | } |
577 | return rc; | |
578 | } | |
579 | ||
580 | int qeth_l3_setrouting_v6(struct qeth_card *card) | |
581 | { | |
582 | int rc = 0; | |
583 | ||
847a50fd | 584 | QETH_CARD_TEXT(card, 3, "setrtg6"); |
4a71df50 FB |
585 | #ifdef CONFIG_QETH_IPV6 |
586 | ||
587 | if (!qeth_is_supported(card, IPA_IPV6)) | |
588 | return 0; | |
82e2e782 | 589 | rc = qeth_l3_correct_routing_type(card, &card->options.route6.type, |
4a71df50 | 590 | QETH_PROT_IPV6); |
82e2e782 SR |
591 | if (rc) |
592 | return rc; | |
4a71df50 FB |
593 | |
594 | rc = qeth_l3_send_setrouting(card, card->options.route6.type, | |
595 | QETH_PROT_IPV6); | |
596 | if (rc) { | |
597 | card->options.route6.type = NO_ROUTER; | |
14cc21b6 FB |
598 | QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type" |
599 | " on %s. Type set to 'no router'.\n", rc, | |
600 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
601 | } |
602 | #endif | |
603 | return rc; | |
604 | } | |
605 | ||
606 | /* | |
607 | * IP address takeover related functions | |
608 | */ | |
02f510f3 JW |
609 | |
610 | /** | |
611 | * qeth_l3_update_ipato() - Update 'takeover' property, for all NORMAL IPs. | |
612 | * | |
613 | * Caller must hold ip_lock. | |
614 | */ | |
615 | void qeth_l3_update_ipato(struct qeth_card *card) | |
616 | { | |
617 | struct qeth_ipaddr *addr; | |
618 | unsigned int i; | |
619 | ||
620 | hash_for_each(card->ip_htable, i, addr, hnode) { | |
621 | if (addr->type != QETH_IP_TYPE_NORMAL) | |
622 | continue; | |
623 | if (qeth_l3_is_addr_covered_by_ipato(card, addr)) | |
624 | addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; | |
625 | else | |
626 | addr->set_flags &= ~QETH_IPA_SETIP_TAKEOVER_FLAG; | |
627 | } | |
628 | } | |
629 | ||
4a71df50 FB |
630 | static void qeth_l3_clear_ipato_list(struct qeth_card *card) |
631 | { | |
4a71df50 | 632 | struct qeth_ipato_entry *ipatoe, *tmp; |
4a71df50 | 633 | |
5f78e29c LD |
634 | spin_lock_bh(&card->ip_lock); |
635 | ||
4a71df50 FB |
636 | list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) { |
637 | list_del(&ipatoe->entry); | |
638 | kfree(ipatoe); | |
639 | } | |
5f78e29c | 640 | |
02f510f3 | 641 | qeth_l3_update_ipato(card); |
5f78e29c | 642 | spin_unlock_bh(&card->ip_lock); |
4a71df50 FB |
643 | } |
644 | ||
645 | int qeth_l3_add_ipato_entry(struct qeth_card *card, | |
646 | struct qeth_ipato_entry *new) | |
647 | { | |
648 | struct qeth_ipato_entry *ipatoe; | |
4a71df50 FB |
649 | int rc = 0; |
650 | ||
847a50fd | 651 | QETH_CARD_TEXT(card, 2, "addipato"); |
5f78e29c LD |
652 | |
653 | spin_lock_bh(&card->ip_lock); | |
654 | ||
4a71df50 FB |
655 | list_for_each_entry(ipatoe, &card->ipato.entries, entry) { |
656 | if (ipatoe->proto != new->proto) | |
657 | continue; | |
658 | if (!memcmp(ipatoe->addr, new->addr, | |
659 | (ipatoe->proto == QETH_PROT_IPV4)? 4:16) && | |
660 | (ipatoe->mask_bits == new->mask_bits)) { | |
4a71df50 FB |
661 | rc = -EEXIST; |
662 | break; | |
663 | } | |
664 | } | |
5f78e29c | 665 | |
02f510f3 | 666 | if (!rc) { |
4a71df50 | 667 | list_add_tail(&new->entry, &card->ipato.entries); |
02f510f3 JW |
668 | qeth_l3_update_ipato(card); |
669 | } | |
4a71df50 | 670 | |
5f78e29c LD |
671 | spin_unlock_bh(&card->ip_lock); |
672 | ||
4a71df50 FB |
673 | return rc; |
674 | } | |
675 | ||
676 | void qeth_l3_del_ipato_entry(struct qeth_card *card, | |
677 | enum qeth_prot_versions proto, u8 *addr, int mask_bits) | |
678 | { | |
679 | struct qeth_ipato_entry *ipatoe, *tmp; | |
4a71df50 | 680 | |
847a50fd | 681 | QETH_CARD_TEXT(card, 2, "delipato"); |
5f78e29c LD |
682 | |
683 | spin_lock_bh(&card->ip_lock); | |
684 | ||
4a71df50 FB |
685 | list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) { |
686 | if (ipatoe->proto != proto) | |
687 | continue; | |
688 | if (!memcmp(ipatoe->addr, addr, | |
689 | (proto == QETH_PROT_IPV4)? 4:16) && | |
690 | (ipatoe->mask_bits == mask_bits)) { | |
691 | list_del(&ipatoe->entry); | |
02f510f3 | 692 | qeth_l3_update_ipato(card); |
4a71df50 FB |
693 | kfree(ipatoe); |
694 | } | |
695 | } | |
5f78e29c LD |
696 | |
697 | spin_unlock_bh(&card->ip_lock); | |
4a71df50 FB |
698 | } |
699 | ||
700 | /* | |
701 | * VIPA related functions | |
702 | */ | |
703 | int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto, | |
704 | const u8 *addr) | |
705 | { | |
706 | struct qeth_ipaddr *ipaddr; | |
4a71df50 FB |
707 | int rc = 0; |
708 | ||
709 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
710 | if (ipaddr) { | |
711 | if (proto == QETH_PROT_IPV4) { | |
847a50fd | 712 | QETH_CARD_TEXT(card, 2, "addvipa4"); |
4a71df50 FB |
713 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
714 | ipaddr->u.a4.mask = 0; | |
715 | } else if (proto == QETH_PROT_IPV6) { | |
847a50fd | 716 | QETH_CARD_TEXT(card, 2, "addvipa6"); |
4a71df50 FB |
717 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
718 | ipaddr->u.a6.pfxlen = 0; | |
719 | } | |
720 | ipaddr->type = QETH_IP_TYPE_VIPA; | |
721 | ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG; | |
722 | ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG; | |
723 | } else | |
724 | return -ENOMEM; | |
5f78e29c LD |
725 | |
726 | spin_lock_bh(&card->ip_lock); | |
727 | ||
732a59cb | 728 | if (qeth_l3_ip_from_hash(card, ipaddr)) |
4a71df50 | 729 | rc = -EEXIST; |
5f78e29c LD |
730 | else |
731 | qeth_l3_add_ip(card, ipaddr); | |
732 | ||
733 | spin_unlock_bh(&card->ip_lock); | |
734 | ||
735 | kfree(ipaddr); | |
736 | ||
4a71df50 FB |
737 | return rc; |
738 | } | |
739 | ||
740 | void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto, | |
741 | const u8 *addr) | |
742 | { | |
743 | struct qeth_ipaddr *ipaddr; | |
744 | ||
745 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
746 | if (ipaddr) { | |
747 | if (proto == QETH_PROT_IPV4) { | |
847a50fd | 748 | QETH_CARD_TEXT(card, 2, "delvipa4"); |
4a71df50 FB |
749 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
750 | ipaddr->u.a4.mask = 0; | |
751 | } else if (proto == QETH_PROT_IPV6) { | |
847a50fd | 752 | QETH_CARD_TEXT(card, 2, "delvipa6"); |
4a71df50 FB |
753 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
754 | ipaddr->u.a6.pfxlen = 0; | |
755 | } | |
756 | ipaddr->type = QETH_IP_TYPE_VIPA; | |
757 | } else | |
758 | return; | |
5f78e29c LD |
759 | |
760 | spin_lock_bh(&card->ip_lock); | |
761 | qeth_l3_delete_ip(card, ipaddr); | |
762 | spin_unlock_bh(&card->ip_lock); | |
763 | ||
764 | kfree(ipaddr); | |
4a71df50 FB |
765 | } |
766 | ||
767 | /* | |
768 | * proxy ARP related functions | |
769 | */ | |
770 | int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto, | |
771 | const u8 *addr) | |
772 | { | |
773 | struct qeth_ipaddr *ipaddr; | |
4a71df50 FB |
774 | int rc = 0; |
775 | ||
776 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
777 | if (ipaddr) { | |
778 | if (proto == QETH_PROT_IPV4) { | |
847a50fd | 779 | QETH_CARD_TEXT(card, 2, "addrxip4"); |
4a71df50 FB |
780 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
781 | ipaddr->u.a4.mask = 0; | |
782 | } else if (proto == QETH_PROT_IPV6) { | |
847a50fd | 783 | QETH_CARD_TEXT(card, 2, "addrxip6"); |
4a71df50 FB |
784 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
785 | ipaddr->u.a6.pfxlen = 0; | |
786 | } | |
5f78e29c | 787 | |
4a71df50 FB |
788 | ipaddr->type = QETH_IP_TYPE_RXIP; |
789 | ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG; | |
790 | ipaddr->del_flags = 0; | |
791 | } else | |
792 | return -ENOMEM; | |
5f78e29c LD |
793 | |
794 | spin_lock_bh(&card->ip_lock); | |
795 | ||
732a59cb | 796 | if (qeth_l3_ip_from_hash(card, ipaddr)) |
4a71df50 | 797 | rc = -EEXIST; |
5f78e29c LD |
798 | else |
799 | qeth_l3_add_ip(card, ipaddr); | |
800 | ||
801 | spin_unlock_bh(&card->ip_lock); | |
802 | ||
803 | kfree(ipaddr); | |
804 | ||
805 | return rc; | |
4a71df50 FB |
806 | } |
807 | ||
808 | void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto, | |
809 | const u8 *addr) | |
810 | { | |
811 | struct qeth_ipaddr *ipaddr; | |
812 | ||
813 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
814 | if (ipaddr) { | |
815 | if (proto == QETH_PROT_IPV4) { | |
ea4ae35a | 816 | QETH_CARD_TEXT(card, 2, "delrxip4"); |
4a71df50 FB |
817 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
818 | ipaddr->u.a4.mask = 0; | |
819 | } else if (proto == QETH_PROT_IPV6) { | |
ea4ae35a | 820 | QETH_CARD_TEXT(card, 2, "delrxip6"); |
4a71df50 FB |
821 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
822 | ipaddr->u.a6.pfxlen = 0; | |
823 | } | |
824 | ipaddr->type = QETH_IP_TYPE_RXIP; | |
825 | } else | |
826 | return; | |
5f78e29c LD |
827 | |
828 | spin_lock_bh(&card->ip_lock); | |
829 | qeth_l3_delete_ip(card, ipaddr); | |
830 | spin_unlock_bh(&card->ip_lock); | |
831 | ||
832 | kfree(ipaddr); | |
4a71df50 FB |
833 | } |
834 | ||
835 | static int qeth_l3_register_addr_entry(struct qeth_card *card, | |
836 | struct qeth_ipaddr *addr) | |
837 | { | |
838 | char buf[50]; | |
839 | int rc = 0; | |
840 | int cnt = 3; | |
841 | ||
5f78e29c | 842 | |
4a71df50 | 843 | if (addr->proto == QETH_PROT_IPV4) { |
847a50fd CO |
844 | QETH_CARD_TEXT(card, 2, "setaddr4"); |
845 | QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int)); | |
4a71df50 | 846 | } else if (addr->proto == QETH_PROT_IPV6) { |
847a50fd CO |
847 | QETH_CARD_TEXT(card, 2, "setaddr6"); |
848 | QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8); | |
849 | QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8); | |
4a71df50 | 850 | } else { |
847a50fd CO |
851 | QETH_CARD_TEXT(card, 2, "setaddr?"); |
852 | QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr)); | |
4a71df50 FB |
853 | } |
854 | do { | |
855 | if (addr->is_multicast) | |
856 | rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM); | |
857 | else | |
858 | rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP, | |
859 | addr->set_flags); | |
860 | if (rc) | |
847a50fd | 861 | QETH_CARD_TEXT(card, 2, "failed"); |
4a71df50 FB |
862 | } while ((--cnt > 0) && rc); |
863 | if (rc) { | |
847a50fd | 864 | QETH_CARD_TEXT(card, 2, "FAILED"); |
4a71df50 | 865 | qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf); |
74eacdb9 FB |
866 | dev_warn(&card->gdev->dev, |
867 | "Registering IP address %s failed\n", buf); | |
4a71df50 FB |
868 | } |
869 | return rc; | |
870 | } | |
871 | ||
872 | static int qeth_l3_deregister_addr_entry(struct qeth_card *card, | |
873 | struct qeth_ipaddr *addr) | |
874 | { | |
875 | int rc = 0; | |
876 | ||
877 | if (addr->proto == QETH_PROT_IPV4) { | |
847a50fd CO |
878 | QETH_CARD_TEXT(card, 2, "deladdr4"); |
879 | QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int)); | |
4a71df50 | 880 | } else if (addr->proto == QETH_PROT_IPV6) { |
847a50fd CO |
881 | QETH_CARD_TEXT(card, 2, "deladdr6"); |
882 | QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8); | |
883 | QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8); | |
4a71df50 | 884 | } else { |
847a50fd CO |
885 | QETH_CARD_TEXT(card, 2, "deladdr?"); |
886 | QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr)); | |
4a71df50 FB |
887 | } |
888 | if (addr->is_multicast) | |
889 | rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM); | |
890 | else | |
891 | rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP, | |
892 | addr->del_flags); | |
c4cef07c | 893 | if (rc) |
847a50fd | 894 | QETH_CARD_TEXT(card, 2, "failed"); |
4a71df50 FB |
895 | |
896 | return rc; | |
897 | } | |
898 | ||
cef6ff22 | 899 | static u8 qeth_l3_get_qeth_hdr_flags4(int cast_type) |
4a71df50 FB |
900 | { |
901 | if (cast_type == RTN_MULTICAST) | |
902 | return QETH_CAST_MULTICAST; | |
903 | if (cast_type == RTN_BROADCAST) | |
904 | return QETH_CAST_BROADCAST; | |
905 | return QETH_CAST_UNICAST; | |
906 | } | |
907 | ||
cef6ff22 | 908 | static u8 qeth_l3_get_qeth_hdr_flags6(int cast_type) |
4a71df50 FB |
909 | { |
910 | u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6; | |
911 | if (cast_type == RTN_MULTICAST) | |
912 | return ct | QETH_CAST_MULTICAST; | |
913 | if (cast_type == RTN_ANYCAST) | |
914 | return ct | QETH_CAST_ANYCAST; | |
915 | if (cast_type == RTN_BROADCAST) | |
916 | return ct | QETH_CAST_BROADCAST; | |
917 | return ct | QETH_CAST_UNICAST; | |
918 | } | |
919 | ||
4a71df50 FB |
920 | static int qeth_l3_setadapter_parms(struct qeth_card *card) |
921 | { | |
699d3fe5 | 922 | int rc = 0; |
4a71df50 | 923 | |
d11ba0c4 | 924 | QETH_DBF_TEXT(SETUP, 2, "setadprm"); |
4a71df50 | 925 | |
4a71df50 FB |
926 | if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) { |
927 | rc = qeth_setadpparms_change_macaddr(card); | |
928 | if (rc) | |
74eacdb9 | 929 | dev_warn(&card->gdev->dev, "Reading the adapter MAC" |
6ea2fde1 | 930 | " address failed\n"); |
4a71df50 FB |
931 | } |
932 | ||
4a71df50 FB |
933 | return rc; |
934 | } | |
935 | ||
4a71df50 FB |
936 | #ifdef CONFIG_QETH_IPV6 |
937 | static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card, | |
938 | enum qeth_ipa_funcs ipa_func, __u16 cmd_code) | |
939 | { | |
940 | int rc; | |
941 | struct qeth_cmd_buffer *iob; | |
942 | ||
847a50fd | 943 | QETH_CARD_TEXT(card, 4, "simassp6"); |
b475e316 | 944 | iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, |
4a71df50 | 945 | 0, QETH_PROT_IPV6); |
1aec42bc TR |
946 | if (!iob) |
947 | return -ENOMEM; | |
4d7def2a | 948 | rc = qeth_send_setassparms(card, iob, 0, 0, |
8f43fb00 | 949 | qeth_setassparms_cb, NULL); |
4a71df50 FB |
950 | return rc; |
951 | } | |
952 | #endif | |
953 | ||
4a71df50 FB |
954 | static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card) |
955 | { | |
956 | int rc; | |
957 | ||
847a50fd | 958 | QETH_CARD_TEXT(card, 3, "ipaarp"); |
4a71df50 FB |
959 | |
960 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
74eacdb9 FB |
961 | dev_info(&card->gdev->dev, |
962 | "ARP processing not supported on %s!\n", | |
963 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
964 | return 0; |
965 | } | |
4d7def2a TR |
966 | rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING, |
967 | IPA_CMD_ASS_START, 0); | |
4a71df50 | 968 | if (rc) { |
74eacdb9 FB |
969 | dev_warn(&card->gdev->dev, |
970 | "Starting ARP processing support for %s failed\n", | |
971 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
972 | } |
973 | return rc; | |
974 | } | |
975 | ||
4a71df50 FB |
976 | static int qeth_l3_start_ipa_source_mac(struct qeth_card *card) |
977 | { | |
978 | int rc; | |
979 | ||
847a50fd | 980 | QETH_CARD_TEXT(card, 3, "stsrcmac"); |
4a71df50 | 981 | |
4a71df50 | 982 | if (!qeth_is_supported(card, IPA_SOURCE_MAC)) { |
74eacdb9 | 983 | dev_info(&card->gdev->dev, |
fe94e2e0 | 984 | "Inbound source MAC-address not supported on %s\n", |
74eacdb9 | 985 | QETH_CARD_IFNAME(card)); |
4a71df50 FB |
986 | return -EOPNOTSUPP; |
987 | } | |
988 | ||
4d7def2a | 989 | rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC, |
4a71df50 FB |
990 | IPA_CMD_ASS_START, 0); |
991 | if (rc) | |
74eacdb9 | 992 | dev_warn(&card->gdev->dev, |
fe94e2e0 | 993 | "Starting source MAC-address support for %s failed\n", |
74eacdb9 | 994 | QETH_CARD_IFNAME(card)); |
4a71df50 FB |
995 | return rc; |
996 | } | |
997 | ||
998 | static int qeth_l3_start_ipa_vlan(struct qeth_card *card) | |
999 | { | |
1000 | int rc = 0; | |
1001 | ||
847a50fd | 1002 | QETH_CARD_TEXT(card, 3, "strtvlan"); |
4a71df50 FB |
1003 | |
1004 | if (!qeth_is_supported(card, IPA_FULL_VLAN)) { | |
74eacdb9 FB |
1005 | dev_info(&card->gdev->dev, |
1006 | "VLAN not supported on %s\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1007 | return -EOPNOTSUPP; |
1008 | } | |
1009 | ||
4d7def2a | 1010 | rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO, |
4a71df50 FB |
1011 | IPA_CMD_ASS_START, 0); |
1012 | if (rc) { | |
74eacdb9 FB |
1013 | dev_warn(&card->gdev->dev, |
1014 | "Starting VLAN support for %s failed\n", | |
1015 | QETH_CARD_IFNAME(card)); | |
4a71df50 | 1016 | } else { |
74eacdb9 | 1017 | dev_info(&card->gdev->dev, "VLAN enabled\n"); |
4a71df50 FB |
1018 | } |
1019 | return rc; | |
1020 | } | |
1021 | ||
1022 | static int qeth_l3_start_ipa_multicast(struct qeth_card *card) | |
1023 | { | |
1024 | int rc; | |
1025 | ||
847a50fd | 1026 | QETH_CARD_TEXT(card, 3, "stmcast"); |
4a71df50 FB |
1027 | |
1028 | if (!qeth_is_supported(card, IPA_MULTICASTING)) { | |
74eacdb9 FB |
1029 | dev_info(&card->gdev->dev, |
1030 | "Multicast not supported on %s\n", | |
1031 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1032 | return -EOPNOTSUPP; |
1033 | } | |
1034 | ||
4d7def2a | 1035 | rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING, |
4a71df50 FB |
1036 | IPA_CMD_ASS_START, 0); |
1037 | if (rc) { | |
74eacdb9 FB |
1038 | dev_warn(&card->gdev->dev, |
1039 | "Starting multicast support for %s failed\n", | |
1040 | QETH_CARD_IFNAME(card)); | |
4a71df50 | 1041 | } else { |
74eacdb9 | 1042 | dev_info(&card->gdev->dev, "Multicast enabled\n"); |
4a71df50 FB |
1043 | card->dev->flags |= IFF_MULTICAST; |
1044 | } | |
1045 | return rc; | |
1046 | } | |
1047 | ||
4a71df50 FB |
1048 | #ifdef CONFIG_QETH_IPV6 |
1049 | static int qeth_l3_softsetup_ipv6(struct qeth_card *card) | |
1050 | { | |
1051 | int rc; | |
1052 | ||
847a50fd | 1053 | QETH_CARD_TEXT(card, 3, "softipv6"); |
4a71df50 | 1054 | |
1da74b1c | 1055 | rc = qeth_query_ipassists(card, QETH_PROT_IPV6); |
4a71df50 | 1056 | if (rc) { |
74eacdb9 FB |
1057 | dev_err(&card->gdev->dev, |
1058 | "Activating IPv6 support for %s failed\n", | |
1059 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1060 | return rc; |
1061 | } | |
23274596 JW |
1062 | |
1063 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1064 | goto out; | |
1065 | ||
4d7def2a | 1066 | rc = qeth_send_simple_setassparms(card, IPA_IPV6, |
4a71df50 FB |
1067 | IPA_CMD_ASS_START, 3); |
1068 | if (rc) { | |
74eacdb9 FB |
1069 | dev_err(&card->gdev->dev, |
1070 | "Activating IPv6 support for %s failed\n", | |
1071 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1072 | return rc; |
1073 | } | |
1074 | rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6, | |
1075 | IPA_CMD_ASS_START); | |
1076 | if (rc) { | |
74eacdb9 FB |
1077 | dev_err(&card->gdev->dev, |
1078 | "Activating IPv6 support for %s failed\n", | |
1079 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1080 | return rc; |
1081 | } | |
1082 | rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU, | |
1083 | IPA_CMD_ASS_START); | |
1084 | if (rc) { | |
74eacdb9 FB |
1085 | dev_warn(&card->gdev->dev, |
1086 | "Enabling the passthrough mode for %s failed\n", | |
1087 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1088 | return rc; |
1089 | } | |
1090 | out: | |
74eacdb9 | 1091 | dev_info(&card->gdev->dev, "IPV6 enabled\n"); |
4a71df50 FB |
1092 | return 0; |
1093 | } | |
1094 | #endif | |
1095 | ||
1096 | static int qeth_l3_start_ipa_ipv6(struct qeth_card *card) | |
1097 | { | |
1098 | int rc = 0; | |
1099 | ||
847a50fd | 1100 | QETH_CARD_TEXT(card, 3, "strtipv6"); |
4a71df50 FB |
1101 | |
1102 | if (!qeth_is_supported(card, IPA_IPV6)) { | |
74eacdb9 FB |
1103 | dev_info(&card->gdev->dev, |
1104 | "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1105 | return 0; |
1106 | } | |
1107 | #ifdef CONFIG_QETH_IPV6 | |
1108 | rc = qeth_l3_softsetup_ipv6(card); | |
1109 | #endif | |
1110 | return rc ; | |
1111 | } | |
1112 | ||
1113 | static int qeth_l3_start_ipa_broadcast(struct qeth_card *card) | |
1114 | { | |
1115 | int rc; | |
1116 | ||
847a50fd | 1117 | QETH_CARD_TEXT(card, 3, "stbrdcst"); |
4a71df50 FB |
1118 | card->info.broadcast_capable = 0; |
1119 | if (!qeth_is_supported(card, IPA_FILTERING)) { | |
74eacdb9 FB |
1120 | dev_info(&card->gdev->dev, |
1121 | "Broadcast not supported on %s\n", | |
1122 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1123 | rc = -EOPNOTSUPP; |
1124 | goto out; | |
1125 | } | |
4d7def2a | 1126 | rc = qeth_send_simple_setassparms(card, IPA_FILTERING, |
4a71df50 FB |
1127 | IPA_CMD_ASS_START, 0); |
1128 | if (rc) { | |
74eacdb9 FB |
1129 | dev_warn(&card->gdev->dev, "Enabling broadcast filtering for " |
1130 | "%s failed\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1131 | goto out; |
1132 | } | |
1133 | ||
4d7def2a | 1134 | rc = qeth_send_simple_setassparms(card, IPA_FILTERING, |
4a71df50 FB |
1135 | IPA_CMD_ASS_CONFIGURE, 1); |
1136 | if (rc) { | |
74eacdb9 FB |
1137 | dev_warn(&card->gdev->dev, |
1138 | "Setting up broadcast filtering for %s failed\n", | |
1139 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1140 | goto out; |
1141 | } | |
1142 | card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO; | |
74eacdb9 | 1143 | dev_info(&card->gdev->dev, "Broadcast enabled\n"); |
4d7def2a | 1144 | rc = qeth_send_simple_setassparms(card, IPA_FILTERING, |
4a71df50 FB |
1145 | IPA_CMD_ASS_ENABLE, 1); |
1146 | if (rc) { | |
74eacdb9 FB |
1147 | dev_warn(&card->gdev->dev, "Setting up broadcast echo " |
1148 | "filtering for %s failed\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1149 | goto out; |
1150 | } | |
1151 | card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO; | |
1152 | out: | |
1153 | if (card->info.broadcast_capable) | |
1154 | card->dev->flags |= IFF_BROADCAST; | |
1155 | else | |
1156 | card->dev->flags &= ~IFF_BROADCAST; | |
1157 | return rc; | |
1158 | } | |
1159 | ||
4a71df50 FB |
1160 | static int qeth_l3_start_ipassists(struct qeth_card *card) |
1161 | { | |
847a50fd | 1162 | QETH_CARD_TEXT(card, 3, "strtipas"); |
d64ecc22 | 1163 | |
0f54761d SR |
1164 | if (qeth_set_access_ctrl_online(card, 0)) |
1165 | return -EIO; | |
4a71df50 | 1166 | qeth_l3_start_ipa_arp_processing(card); /* go on*/ |
4a71df50 FB |
1167 | qeth_l3_start_ipa_source_mac(card); /* go on*/ |
1168 | qeth_l3_start_ipa_vlan(card); /* go on*/ | |
1169 | qeth_l3_start_ipa_multicast(card); /* go on*/ | |
1170 | qeth_l3_start_ipa_ipv6(card); /* go on*/ | |
1171 | qeth_l3_start_ipa_broadcast(card); /* go on*/ | |
4a71df50 FB |
1172 | return 0; |
1173 | } | |
1174 | ||
4a71df50 FB |
1175 | static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card, |
1176 | struct qeth_reply *reply, unsigned long data) | |
1177 | { | |
1178 | struct qeth_ipa_cmd *cmd; | |
1179 | ||
1180 | cmd = (struct qeth_ipa_cmd *) data; | |
1181 | if (cmd->hdr.return_code == 0) | |
1182 | memcpy(card->dev->dev_addr, | |
1183 | cmd->data.create_destroy_addr.unique_id, ETH_ALEN); | |
1184 | else | |
1833611d | 1185 | eth_random_addr(card->dev->dev_addr); |
4a71df50 FB |
1186 | |
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card) | |
1191 | { | |
1192 | int rc = 0; | |
1193 | struct qeth_cmd_buffer *iob; | |
1194 | struct qeth_ipa_cmd *cmd; | |
1195 | ||
d11ba0c4 | 1196 | QETH_DBF_TEXT(SETUP, 2, "hsrmac"); |
4a71df50 FB |
1197 | |
1198 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR, | |
1199 | QETH_PROT_IPV6); | |
1aec42bc TR |
1200 | if (!iob) |
1201 | return -ENOMEM; | |
4a71df50 FB |
1202 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
1203 | *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = | |
1204 | card->info.unique_id; | |
1205 | ||
1206 | rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb, | |
1207 | NULL); | |
1208 | return rc; | |
1209 | } | |
1210 | ||
1211 | static int qeth_l3_get_unique_id_cb(struct qeth_card *card, | |
1212 | struct qeth_reply *reply, unsigned long data) | |
1213 | { | |
1214 | struct qeth_ipa_cmd *cmd; | |
1215 | ||
1216 | cmd = (struct qeth_ipa_cmd *) data; | |
1217 | if (cmd->hdr.return_code == 0) | |
1218 | card->info.unique_id = *((__u16 *) | |
1219 | &cmd->data.create_destroy_addr.unique_id[6]); | |
1220 | else { | |
1221 | card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | | |
1222 | UNIQUE_ID_NOT_BY_CARD; | |
74eacdb9 FB |
1223 | dev_warn(&card->gdev->dev, "The network adapter failed to " |
1224 | "generate a unique ID\n"); | |
4a71df50 FB |
1225 | } |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | static int qeth_l3_get_unique_id(struct qeth_card *card) | |
1230 | { | |
1231 | int rc = 0; | |
1232 | struct qeth_cmd_buffer *iob; | |
1233 | struct qeth_ipa_cmd *cmd; | |
1234 | ||
d11ba0c4 | 1235 | QETH_DBF_TEXT(SETUP, 2, "guniqeid"); |
4a71df50 FB |
1236 | |
1237 | if (!qeth_is_supported(card, IPA_IPV6)) { | |
1238 | card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | | |
1239 | UNIQUE_ID_NOT_BY_CARD; | |
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR, | |
1244 | QETH_PROT_IPV6); | |
1aec42bc TR |
1245 | if (!iob) |
1246 | return -ENOMEM; | |
4a71df50 FB |
1247 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
1248 | *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = | |
1249 | card->info.unique_id; | |
1250 | ||
1251 | rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL); | |
1252 | return rc; | |
1253 | } | |
1254 | ||
76b11f8e UB |
1255 | static int |
1256 | qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply, | |
1257 | unsigned long data) | |
1258 | { | |
1259 | struct qeth_ipa_cmd *cmd; | |
1260 | __u16 rc; | |
1261 | ||
1262 | QETH_DBF_TEXT(SETUP, 2, "diastrcb"); | |
1263 | ||
1264 | cmd = (struct qeth_ipa_cmd *)data; | |
1265 | rc = cmd->hdr.return_code; | |
a959189a | 1266 | if (rc) |
847a50fd | 1267 | QETH_CARD_TEXT_(card, 2, "dxter%x", rc); |
76b11f8e UB |
1268 | switch (cmd->data.diagass.action) { |
1269 | case QETH_DIAGS_CMD_TRACE_QUERY: | |
1270 | break; | |
1271 | case QETH_DIAGS_CMD_TRACE_DISABLE: | |
a959189a UB |
1272 | switch (rc) { |
1273 | case 0: | |
1274 | case IPA_RC_INVALID_SUBCMD: | |
1275 | card->info.promisc_mode = SET_PROMISC_MODE_OFF; | |
1276 | dev_info(&card->gdev->dev, "The HiperSockets network " | |
1277 | "traffic analyzer is deactivated\n"); | |
1278 | break; | |
1279 | default: | |
1280 | break; | |
1281 | } | |
76b11f8e UB |
1282 | break; |
1283 | case QETH_DIAGS_CMD_TRACE_ENABLE: | |
a959189a UB |
1284 | switch (rc) { |
1285 | case 0: | |
1286 | card->info.promisc_mode = SET_PROMISC_MODE_ON; | |
1287 | dev_info(&card->gdev->dev, "The HiperSockets network " | |
1288 | "traffic analyzer is activated\n"); | |
1289 | break; | |
1290 | case IPA_RC_HARDWARE_AUTH_ERROR: | |
1291 | dev_warn(&card->gdev->dev, "The device is not " | |
1292 | "authorized to run as a HiperSockets network " | |
1293 | "traffic analyzer\n"); | |
1294 | break; | |
1295 | case IPA_RC_TRACE_ALREADY_ACTIVE: | |
1296 | dev_warn(&card->gdev->dev, "A HiperSockets " | |
1297 | "network traffic analyzer is already " | |
1298 | "active in the HiperSockets LAN\n"); | |
1299 | break; | |
1300 | default: | |
1301 | break; | |
1302 | } | |
76b11f8e UB |
1303 | break; |
1304 | default: | |
1305 | QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n", | |
1306 | cmd->data.diagass.action, QETH_CARD_IFNAME(card)); | |
1307 | } | |
1308 | ||
1309 | return 0; | |
1310 | } | |
1311 | ||
1312 | static int | |
1313 | qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd) | |
1314 | { | |
1315 | struct qeth_cmd_buffer *iob; | |
1316 | struct qeth_ipa_cmd *cmd; | |
1317 | ||
1318 | QETH_DBF_TEXT(SETUP, 2, "diagtrac"); | |
1319 | ||
1320 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); | |
1aec42bc TR |
1321 | if (!iob) |
1322 | return -ENOMEM; | |
76b11f8e UB |
1323 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
1324 | cmd->data.diagass.subcmd_len = 16; | |
1325 | cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE; | |
1326 | cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET; | |
1327 | cmd->data.diagass.action = diags_cmd; | |
1328 | return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL); | |
1329 | } | |
1330 | ||
6bee4e26 | 1331 | static void qeth_l3_get_mac_for_ipm(__be32 ipm, char *mac) |
4a71df50 | 1332 | { |
1abd2296 | 1333 | ip_eth_mc_map(ipm, mac); |
4a71df50 FB |
1334 | } |
1335 | ||
5f78e29c LD |
1336 | static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card *card) |
1337 | { | |
1338 | struct qeth_ipaddr *addr; | |
1339 | int i; | |
1340 | ||
1341 | hash_for_each(card->ip_mc_htable, i, addr, hnode) | |
1342 | addr->disp_flag = QETH_DISP_ADDR_DELETE; | |
1343 | ||
1344 | } | |
1345 | ||
1346 | static void qeth_l3_add_all_new_mc(struct qeth_card *card) | |
1347 | { | |
1348 | struct qeth_ipaddr *addr; | |
1349 | struct hlist_node *tmp; | |
1350 | int i; | |
1351 | int rc; | |
1352 | ||
1353 | hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) { | |
1354 | if (addr->disp_flag == QETH_DISP_ADDR_ADD) { | |
1355 | rc = qeth_l3_register_addr_entry(card, addr); | |
1356 | if (!rc || (rc == IPA_RC_LAN_OFFLINE)) | |
1357 | addr->ref_counter = 1; | |
1358 | else { | |
1359 | hash_del(&addr->hnode); | |
1360 | kfree(addr); | |
1361 | } | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | } | |
1366 | ||
1367 | static void qeth_l3_delete_nonused_mc(struct qeth_card *card) | |
1368 | { | |
1369 | struct qeth_ipaddr *addr; | |
1370 | struct hlist_node *tmp; | |
1371 | int i; | |
1372 | int rc; | |
1373 | ||
1374 | hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) { | |
1375 | if (addr->disp_flag == QETH_DISP_ADDR_DELETE) { | |
1376 | rc = qeth_l3_deregister_addr_entry(card, addr); | |
1377 | if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) { | |
1378 | hash_del(&addr->hnode); | |
1379 | kfree(addr); | |
1380 | } | |
1381 | } | |
1382 | } | |
1383 | ||
1384 | } | |
1385 | ||
1386 | ||
1387 | static void | |
1388 | qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev) | |
4a71df50 | 1389 | { |
4a71df50 | 1390 | struct ip_mc_list *im4; |
5f78e29c | 1391 | struct qeth_ipaddr *tmp, *ipm; |
4a71df50 FB |
1392 | char buf[MAX_ADDR_LEN]; |
1393 | ||
847a50fd | 1394 | QETH_CARD_TEXT(card, 4, "addmc"); |
5f78e29c LD |
1395 | |
1396 | tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); | |
1397 | if (!tmp) | |
1398 | return; | |
1399 | ||
f3aa3136 SS |
1400 | for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL; |
1401 | im4 = rcu_dereference(im4->next_rcu)) { | |
5f78e29c LD |
1402 | qeth_l3_get_mac_for_ipm(im4->multiaddr, buf); |
1403 | ||
6bee4e26 | 1404 | tmp->u.a4.addr = be32_to_cpu(im4->multiaddr); |
5f78e29c | 1405 | memcpy(tmp->mac, buf, sizeof(tmp->mac)); |
bc3ab705 | 1406 | tmp->is_multicast = 1; |
5f78e29c LD |
1407 | |
1408 | ipm = qeth_l3_ip_from_hash(card, tmp); | |
1409 | if (ipm) { | |
1410 | ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING; | |
1411 | } else { | |
1412 | ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); | |
1413 | if (!ipm) | |
1414 | continue; | |
1415 | memcpy(ipm->mac, buf, sizeof(tmp->mac)); | |
6bee4e26 | 1416 | ipm->u.a4.addr = be32_to_cpu(im4->multiaddr); |
5f78e29c LD |
1417 | ipm->is_multicast = 1; |
1418 | ipm->disp_flag = QETH_DISP_ADDR_ADD; | |
1419 | hash_add(card->ip_mc_htable, | |
1420 | &ipm->hnode, qeth_l3_ipaddr_hash(ipm)); | |
1421 | } | |
4a71df50 | 1422 | } |
5f78e29c LD |
1423 | |
1424 | kfree(tmp); | |
4a71df50 FB |
1425 | } |
1426 | ||
0347af51 | 1427 | /* called with rcu_read_lock */ |
4a71df50 FB |
1428 | static void qeth_l3_add_vlan_mc(struct qeth_card *card) |
1429 | { | |
1430 | struct in_device *in_dev; | |
7ff0bcf6 | 1431 | u16 vid; |
4a71df50 | 1432 | |
847a50fd | 1433 | QETH_CARD_TEXT(card, 4, "addmcvl"); |
5f78e29c | 1434 | |
7ff0bcf6 | 1435 | if (!qeth_is_supported(card, IPA_FULL_VLAN)) |
4a71df50 FB |
1436 | return; |
1437 | ||
7ff0bcf6 JP |
1438 | for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) { |
1439 | struct net_device *netdev; | |
1440 | ||
f06c7f9f | 1441 | netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), |
91b1c1aa | 1442 | vid); |
4a71df50 FB |
1443 | if (netdev == NULL || |
1444 | !(netdev->flags & IFF_UP)) | |
1445 | continue; | |
0347af51 | 1446 | in_dev = __in_dev_get_rcu(netdev); |
4a71df50 FB |
1447 | if (!in_dev) |
1448 | continue; | |
5f78e29c | 1449 | qeth_l3_add_mc_to_hash(card, in_dev); |
4a71df50 FB |
1450 | } |
1451 | } | |
1452 | ||
1453 | static void qeth_l3_add_multicast_ipv4(struct qeth_card *card) | |
1454 | { | |
1455 | struct in_device *in4_dev; | |
1456 | ||
847a50fd | 1457 | QETH_CARD_TEXT(card, 4, "chkmcv4"); |
5f78e29c | 1458 | |
f3aa3136 | 1459 | rcu_read_lock(); |
0347af51 JP |
1460 | in4_dev = __in_dev_get_rcu(card->dev); |
1461 | if (in4_dev == NULL) | |
1462 | goto unlock; | |
5f78e29c | 1463 | qeth_l3_add_mc_to_hash(card, in4_dev); |
4a71df50 | 1464 | qeth_l3_add_vlan_mc(card); |
0347af51 | 1465 | unlock: |
f3aa3136 | 1466 | rcu_read_unlock(); |
4a71df50 FB |
1467 | } |
1468 | ||
1469 | #ifdef CONFIG_QETH_IPV6 | |
5f78e29c LD |
1470 | static void |
1471 | qeth_l3_add_mc6_to_hash(struct qeth_card *card, struct inet6_dev *in6_dev) | |
4a71df50 FB |
1472 | { |
1473 | struct qeth_ipaddr *ipm; | |
1474 | struct ifmcaddr6 *im6; | |
5f78e29c | 1475 | struct qeth_ipaddr *tmp; |
4a71df50 FB |
1476 | char buf[MAX_ADDR_LEN]; |
1477 | ||
847a50fd | 1478 | QETH_CARD_TEXT(card, 4, "addmc6"); |
5f78e29c LD |
1479 | |
1480 | tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); | |
1481 | if (!tmp) | |
1482 | return; | |
1483 | ||
4a71df50 FB |
1484 | for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) { |
1485 | ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0); | |
5f78e29c LD |
1486 | |
1487 | memcpy(tmp->mac, buf, sizeof(tmp->mac)); | |
1488 | memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr, | |
1489 | sizeof(struct in6_addr)); | |
1490 | tmp->is_multicast = 1; | |
1491 | ||
1492 | ipm = qeth_l3_ip_from_hash(card, tmp); | |
1493 | if (ipm) { | |
1494 | ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING; | |
1495 | continue; | |
1496 | } | |
1497 | ||
4a71df50 FB |
1498 | ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); |
1499 | if (!ipm) | |
1500 | continue; | |
5f78e29c | 1501 | |
4a71df50 FB |
1502 | memcpy(ipm->mac, buf, OSA_ADDR_LEN); |
1503 | memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr, | |
1504 | sizeof(struct in6_addr)); | |
5f78e29c LD |
1505 | ipm->is_multicast = 1; |
1506 | ipm->disp_flag = QETH_DISP_ADDR_ADD; | |
1507 | hash_add(card->ip_mc_htable, | |
1508 | &ipm->hnode, qeth_l3_ipaddr_hash(ipm)); | |
1509 | ||
4a71df50 | 1510 | } |
5f78e29c | 1511 | kfree(tmp); |
4a71df50 FB |
1512 | } |
1513 | ||
0347af51 | 1514 | /* called with rcu_read_lock */ |
4a71df50 FB |
1515 | static void qeth_l3_add_vlan_mc6(struct qeth_card *card) |
1516 | { | |
1517 | struct inet6_dev *in_dev; | |
7ff0bcf6 | 1518 | u16 vid; |
4a71df50 | 1519 | |
847a50fd | 1520 | QETH_CARD_TEXT(card, 4, "admc6vl"); |
5f78e29c | 1521 | |
7ff0bcf6 | 1522 | if (!qeth_is_supported(card, IPA_FULL_VLAN)) |
4a71df50 FB |
1523 | return; |
1524 | ||
7ff0bcf6 JP |
1525 | for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) { |
1526 | struct net_device *netdev; | |
1527 | ||
f06c7f9f | 1528 | netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), |
91b1c1aa | 1529 | vid); |
4a71df50 FB |
1530 | if (netdev == NULL || |
1531 | !(netdev->flags & IFF_UP)) | |
1532 | continue; | |
1533 | in_dev = in6_dev_get(netdev); | |
1534 | if (!in_dev) | |
1535 | continue; | |
1536 | read_lock_bh(&in_dev->lock); | |
5f78e29c | 1537 | qeth_l3_add_mc6_to_hash(card, in_dev); |
4a71df50 FB |
1538 | read_unlock_bh(&in_dev->lock); |
1539 | in6_dev_put(in_dev); | |
1540 | } | |
1541 | } | |
1542 | ||
1543 | static void qeth_l3_add_multicast_ipv6(struct qeth_card *card) | |
1544 | { | |
1545 | struct inet6_dev *in6_dev; | |
1546 | ||
847a50fd | 1547 | QETH_CARD_TEXT(card, 4, "chkmcv6"); |
5f78e29c | 1548 | |
4a71df50 FB |
1549 | if (!qeth_is_supported(card, IPA_IPV6)) |
1550 | return ; | |
1551 | in6_dev = in6_dev_get(card->dev); | |
5f78e29c | 1552 | if (!in6_dev) |
4a71df50 | 1553 | return; |
5f78e29c | 1554 | |
0347af51 | 1555 | rcu_read_lock(); |
4a71df50 | 1556 | read_lock_bh(&in6_dev->lock); |
5f78e29c | 1557 | qeth_l3_add_mc6_to_hash(card, in6_dev); |
4a71df50 FB |
1558 | qeth_l3_add_vlan_mc6(card); |
1559 | read_unlock_bh(&in6_dev->lock); | |
0347af51 | 1560 | rcu_read_unlock(); |
4a71df50 FB |
1561 | in6_dev_put(in6_dev); |
1562 | } | |
1563 | #endif /* CONFIG_QETH_IPV6 */ | |
1564 | ||
1565 | static void qeth_l3_free_vlan_addresses4(struct qeth_card *card, | |
1566 | unsigned short vid) | |
1567 | { | |
1568 | struct in_device *in_dev; | |
1569 | struct in_ifaddr *ifa; | |
1570 | struct qeth_ipaddr *addr; | |
7ff0bcf6 | 1571 | struct net_device *netdev; |
4a71df50 | 1572 | |
847a50fd | 1573 | QETH_CARD_TEXT(card, 4, "frvaddr4"); |
4a71df50 | 1574 | |
f06c7f9f | 1575 | netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid); |
eabfbe62 | 1576 | if (!netdev) |
1577 | return; | |
7ff0bcf6 | 1578 | in_dev = in_dev_get(netdev); |
4a71df50 FB |
1579 | if (!in_dev) |
1580 | return; | |
5f78e29c LD |
1581 | |
1582 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); | |
1583 | if (!addr) | |
83cf79a2 | 1584 | goto out; |
5f78e29c LD |
1585 | |
1586 | spin_lock_bh(&card->ip_lock); | |
1587 | ||
4a71df50 | 1588 | for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { |
6bee4e26 HW |
1589 | addr->u.a4.addr = be32_to_cpu(ifa->ifa_address); |
1590 | addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask); | |
5f78e29c LD |
1591 | addr->type = QETH_IP_TYPE_NORMAL; |
1592 | qeth_l3_delete_ip(card, addr); | |
4a71df50 | 1593 | } |
5f78e29c LD |
1594 | |
1595 | spin_unlock_bh(&card->ip_lock); | |
1596 | ||
1597 | kfree(addr); | |
83cf79a2 | 1598 | out: |
4a71df50 FB |
1599 | in_dev_put(in_dev); |
1600 | } | |
1601 | ||
1602 | static void qeth_l3_free_vlan_addresses6(struct qeth_card *card, | |
1603 | unsigned short vid) | |
1604 | { | |
1605 | #ifdef CONFIG_QETH_IPV6 | |
1606 | struct inet6_dev *in6_dev; | |
1607 | struct inet6_ifaddr *ifa; | |
1608 | struct qeth_ipaddr *addr; | |
7ff0bcf6 | 1609 | struct net_device *netdev; |
4a71df50 | 1610 | |
847a50fd | 1611 | QETH_CARD_TEXT(card, 4, "frvaddr6"); |
4a71df50 | 1612 | |
f06c7f9f | 1613 | netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid); |
eabfbe62 | 1614 | if (!netdev) |
1615 | return; | |
5f78e29c | 1616 | |
7ff0bcf6 | 1617 | in6_dev = in6_dev_get(netdev); |
4a71df50 FB |
1618 | if (!in6_dev) |
1619 | return; | |
5f78e29c LD |
1620 | |
1621 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); | |
1622 | if (!addr) | |
83cf79a2 | 1623 | goto out; |
5f78e29c LD |
1624 | |
1625 | spin_lock_bh(&card->ip_lock); | |
1626 | ||
70f60a22 | 1627 | list_for_each_entry(ifa, &in6_dev->addr_list, if_list) { |
5f78e29c LD |
1628 | memcpy(&addr->u.a6.addr, &ifa->addr, |
1629 | sizeof(struct in6_addr)); | |
1630 | addr->u.a6.pfxlen = ifa->prefix_len; | |
1631 | addr->type = QETH_IP_TYPE_NORMAL; | |
1632 | qeth_l3_delete_ip(card, addr); | |
4a71df50 | 1633 | } |
5f78e29c LD |
1634 | |
1635 | spin_unlock_bh(&card->ip_lock); | |
1636 | ||
1637 | kfree(addr); | |
83cf79a2 | 1638 | out: |
4a71df50 FB |
1639 | in6_dev_put(in6_dev); |
1640 | #endif /* CONFIG_QETH_IPV6 */ | |
1641 | } | |
1642 | ||
1643 | static void qeth_l3_free_vlan_addresses(struct qeth_card *card, | |
1644 | unsigned short vid) | |
1645 | { | |
0347af51 | 1646 | rcu_read_lock(); |
4a71df50 FB |
1647 | qeth_l3_free_vlan_addresses4(card, vid); |
1648 | qeth_l3_free_vlan_addresses6(card, vid); | |
0347af51 | 1649 | rcu_read_unlock(); |
4a71df50 FB |
1650 | } |
1651 | ||
80d5c368 PM |
1652 | static int qeth_l3_vlan_rx_add_vid(struct net_device *dev, |
1653 | __be16 proto, u16 vid) | |
4a71df50 | 1654 | { |
509e2562 | 1655 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 1656 | |
7ff0bcf6 | 1657 | set_bit(vid, card->active_vlans); |
8e586137 | 1658 | return 0; |
4a71df50 FB |
1659 | } |
1660 | ||
80d5c368 PM |
1661 | static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev, |
1662 | __be16 proto, u16 vid) | |
4a71df50 | 1663 | { |
509e2562 | 1664 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 1665 | |
847a50fd | 1666 | QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
5f78e29c | 1667 | |
8e98ac48 | 1668 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 1669 | QETH_CARD_TEXT(card, 3, "kidREC"); |
8e586137 | 1670 | return 0; |
8e98ac48 | 1671 | } |
4a71df50 FB |
1672 | /* unregister IP addresses of vlan device */ |
1673 | qeth_l3_free_vlan_addresses(card, vid); | |
7ff0bcf6 | 1674 | clear_bit(vid, card->active_vlans); |
4a71df50 | 1675 | qeth_l3_set_multicast_list(card->dev); |
8e586137 | 1676 | return 0; |
4a71df50 FB |
1677 | } |
1678 | ||
d7aa9d0b JW |
1679 | static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, |
1680 | struct qeth_hdr *hdr) | |
4a71df50 | 1681 | { |
6bee4e26 | 1682 | __u16 prot; |
4a71df50 FB |
1683 | struct iphdr *ip_hdr; |
1684 | unsigned char tg_addr[MAX_ADDR_LEN]; | |
1685 | ||
1686 | if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) { | |
6bee4e26 HW |
1687 | prot = (hdr->hdr.l3.flags & QETH_HDR_IPV6) ? ETH_P_IPV6 : |
1688 | ETH_P_IP; | |
4a71df50 FB |
1689 | switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) { |
1690 | case QETH_CAST_MULTICAST: | |
1691 | switch (prot) { | |
1692 | #ifdef CONFIG_QETH_IPV6 | |
6bee4e26 | 1693 | case ETH_P_IPV6: |
4a71df50 FB |
1694 | ndisc_mc_map((struct in6_addr *) |
1695 | skb->data + 24, | |
1696 | tg_addr, card->dev, 0); | |
1697 | break; | |
1698 | #endif | |
6bee4e26 | 1699 | case ETH_P_IP: |
4a71df50 | 1700 | ip_hdr = (struct iphdr *)skb->data; |
4a71df50 FB |
1701 | ip_eth_mc_map(ip_hdr->daddr, tg_addr); |
1702 | break; | |
1703 | default: | |
1704 | memcpy(tg_addr, card->dev->broadcast, | |
1705 | card->dev->addr_len); | |
1706 | } | |
1707 | card->stats.multicast++; | |
1708 | skb->pkt_type = PACKET_MULTICAST; | |
1709 | break; | |
1710 | case QETH_CAST_BROADCAST: | |
1711 | memcpy(tg_addr, card->dev->broadcast, | |
1712 | card->dev->addr_len); | |
1713 | card->stats.multicast++; | |
1714 | skb->pkt_type = PACKET_BROADCAST; | |
1715 | break; | |
1716 | case QETH_CAST_UNICAST: | |
1717 | case QETH_CAST_ANYCAST: | |
1718 | case QETH_CAST_NOCAST: | |
1719 | default: | |
76b11f8e UB |
1720 | if (card->options.sniffer) |
1721 | skb->pkt_type = PACKET_OTHERHOST; | |
1722 | else | |
1723 | skb->pkt_type = PACKET_HOST; | |
4a71df50 FB |
1724 | memcpy(tg_addr, card->dev->dev_addr, |
1725 | card->dev->addr_len); | |
1726 | } | |
fe94e2e0 UB |
1727 | if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR) |
1728 | card->dev->header_ops->create(skb, card->dev, prot, | |
1729 | tg_addr, &hdr->hdr.l3.dest_addr[2], | |
1730 | card->dev->addr_len); | |
1731 | else | |
1732 | card->dev->header_ops->create(skb, card->dev, prot, | |
1733 | tg_addr, "FAKELL", card->dev->addr_len); | |
4a71df50 FB |
1734 | } |
1735 | ||
1abd2296 | 1736 | skb->protocol = eth_type_trans(skb, card->dev); |
4a71df50 | 1737 | |
d7aa9d0b JW |
1738 | /* copy VLAN tag from hdr into skb */ |
1739 | if (!card->options.sniffer && | |
1740 | (hdr->hdr.l3.ext_flags & (QETH_HDR_EXT_VLAN_FRAME | | |
1741 | QETH_HDR_EXT_INCLUDE_VLAN_TAG))) { | |
1742 | u16 tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ? | |
1743 | hdr->hdr.l3.vlan_id : | |
1744 | *((u16 *)&hdr->hdr.l3.dest_addr[12]); | |
1745 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag); | |
4a71df50 FB |
1746 | } |
1747 | ||
c5e631a8 | 1748 | if (card->dev->features & NETIF_F_RXCSUM) { |
4a71df50 | 1749 | if ((hdr->hdr.l3.ext_flags & |
b9139800 UB |
1750 | (QETH_HDR_EXT_CSUM_HDR_REQ | |
1751 | QETH_HDR_EXT_CSUM_TRANSP_REQ)) == | |
1752 | (QETH_HDR_EXT_CSUM_HDR_REQ | | |
1753 | QETH_HDR_EXT_CSUM_TRANSP_REQ)) | |
4a71df50 FB |
1754 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
1755 | else | |
b9139800 | 1756 | skb->ip_summed = CHECKSUM_NONE; |
c5e631a8 FB |
1757 | } else |
1758 | skb->ip_summed = CHECKSUM_NONE; | |
4a71df50 FB |
1759 | } |
1760 | ||
a1c3ed4c FB |
1761 | static int qeth_l3_process_inbound_buffer(struct qeth_card *card, |
1762 | int budget, int *done) | |
4a71df50 | 1763 | { |
a1c3ed4c | 1764 | int work_done = 0; |
4a71df50 FB |
1765 | struct sk_buff *skb; |
1766 | struct qeth_hdr *hdr; | |
4a71df50 | 1767 | unsigned int len; |
b3332930 | 1768 | __u16 magic; |
4a71df50 | 1769 | |
a1c3ed4c | 1770 | *done = 0; |
18af5c17 | 1771 | WARN_ON_ONCE(!budget); |
a1c3ed4c FB |
1772 | while (budget) { |
1773 | skb = qeth_core_get_next_skb(card, | |
b3332930 | 1774 | &card->qdio.in_q->bufs[card->rx.b_index], |
a1c3ed4c FB |
1775 | &card->rx.b_element, &card->rx.e_offset, &hdr); |
1776 | if (!skb) { | |
1777 | *done = 1; | |
1778 | break; | |
1779 | } | |
1780 | skb->dev = card->dev; | |
4a71df50 FB |
1781 | switch (hdr->hdr.l3.id) { |
1782 | case QETH_HEADER_TYPE_LAYER3: | |
b3332930 FB |
1783 | magic = *(__u16 *)skb->data; |
1784 | if ((card->info.type == QETH_CARD_TYPE_IQD) && | |
1785 | (magic == ETH_P_AF_IUCV)) { | |
6bee4e26 | 1786 | skb->protocol = cpu_to_be16(ETH_P_AF_IUCV); |
b3332930 FB |
1787 | skb->pkt_type = PACKET_HOST; |
1788 | skb->mac_header = NET_SKB_PAD; | |
1789 | skb->dev = card->dev; | |
1790 | len = skb->len; | |
1791 | card->dev->header_ops->create(skb, card->dev, 0, | |
1792 | card->dev->dev_addr, "FAKELL", | |
1793 | card->dev->addr_len); | |
1794 | netif_receive_skb(skb); | |
1795 | } else { | |
d7aa9d0b | 1796 | qeth_l3_rebuild_skb(card, skb, hdr); |
b3332930 | 1797 | len = skb->len; |
b3332930 FB |
1798 | napi_gro_receive(&card->napi, skb); |
1799 | } | |
4a71df50 | 1800 | break; |
76b11f8e UB |
1801 | case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */ |
1802 | skb->pkt_type = PACKET_HOST; | |
1803 | skb->protocol = eth_type_trans(skb, skb->dev); | |
76b11f8e UB |
1804 | len = skb->len; |
1805 | netif_receive_skb(skb); | |
1806 | break; | |
4a71df50 FB |
1807 | default: |
1808 | dev_kfree_skb_any(skb); | |
847a50fd | 1809 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
d11ba0c4 | 1810 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
1811 | continue; |
1812 | } | |
a1c3ed4c FB |
1813 | work_done++; |
1814 | budget--; | |
4a71df50 FB |
1815 | card->stats.rx_packets++; |
1816 | card->stats.rx_bytes += len; | |
1817 | } | |
a1c3ed4c FB |
1818 | return work_done; |
1819 | } | |
1820 | ||
4a71df50 FB |
1821 | static int qeth_l3_verify_vlan_dev(struct net_device *dev, |
1822 | struct qeth_card *card) | |
1823 | { | |
1824 | int rc = 0; | |
7ff0bcf6 | 1825 | u16 vid; |
4a71df50 | 1826 | |
7ff0bcf6 JP |
1827 | for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) { |
1828 | struct net_device *netdev; | |
4a71df50 | 1829 | |
7ff0bcf6 | 1830 | rcu_read_lock(); |
f06c7f9f | 1831 | netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), |
91b1c1aa | 1832 | vid); |
7ff0bcf6 JP |
1833 | rcu_read_unlock(); |
1834 | if (netdev == dev) { | |
4a71df50 FB |
1835 | rc = QETH_VLAN_CARD; |
1836 | break; | |
1837 | } | |
1838 | } | |
1839 | ||
509e2562 | 1840 | if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card)) |
4a71df50 FB |
1841 | return 0; |
1842 | ||
1843 | return rc; | |
1844 | } | |
1845 | ||
1846 | static int qeth_l3_verify_dev(struct net_device *dev) | |
1847 | { | |
1848 | struct qeth_card *card; | |
4a71df50 | 1849 | int rc = 0; |
5f78e29c | 1850 | unsigned long flags; |
4a71df50 FB |
1851 | |
1852 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
1853 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
1854 | if (card->dev == dev) { | |
1855 | rc = QETH_REAL_CARD; | |
1856 | break; | |
1857 | } | |
1858 | rc = qeth_l3_verify_vlan_dev(dev, card); | |
1859 | if (rc) | |
1860 | break; | |
1861 | } | |
1862 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
1863 | ||
1864 | return rc; | |
1865 | } | |
1866 | ||
1867 | static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev) | |
1868 | { | |
1869 | struct qeth_card *card = NULL; | |
1870 | int rc; | |
1871 | ||
1872 | rc = qeth_l3_verify_dev(dev); | |
1873 | if (rc == QETH_REAL_CARD) | |
509e2562 | 1874 | card = dev->ml_priv; |
4a71df50 | 1875 | else if (rc == QETH_VLAN_CARD) |
509e2562 | 1876 | card = vlan_dev_real_dev(dev)->ml_priv; |
e5bd7be5 | 1877 | if (card && card->options.layer2) |
4a71df50 | 1878 | card = NULL; |
847a50fd CO |
1879 | if (card) |
1880 | QETH_CARD_TEXT_(card, 4, "%d", rc); | |
4a71df50 FB |
1881 | return card ; |
1882 | } | |
1883 | ||
b2f4de8b | 1884 | static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) |
4a71df50 | 1885 | { |
d11ba0c4 PT |
1886 | QETH_DBF_TEXT(SETUP, 2, "stopcard"); |
1887 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1888 | |
1889 | qeth_set_allowed_threads(card, 0, 1); | |
76b11f8e UB |
1890 | if (card->options.sniffer && |
1891 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) | |
1892 | qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE); | |
4a71df50 FB |
1893 | if (card->read.state == CH_STATE_UP && |
1894 | card->write.state == CH_STATE_UP && | |
1895 | (card->state == CARD_STATE_UP)) { | |
1896 | if (recovery_mode) | |
1897 | qeth_l3_stop(card->dev); | |
8af7c5ae | 1898 | else { |
869da90b UB |
1899 | rtnl_lock(); |
1900 | dev_close(card->dev); | |
1901 | rtnl_unlock(); | |
8af7c5ae | 1902 | } |
4a71df50 FB |
1903 | card->state = CARD_STATE_SOFTSETUP; |
1904 | } | |
1905 | if (card->state == CARD_STATE_SOFTSETUP) { | |
5f78e29c | 1906 | qeth_l3_clear_ip_htable(card, 1); |
4a71df50 FB |
1907 | qeth_clear_ipacmd_list(card); |
1908 | card->state = CARD_STATE_HARDSETUP; | |
1909 | } | |
1910 | if (card->state == CARD_STATE_HARDSETUP) { | |
4a71df50 FB |
1911 | qeth_qdio_clear_card(card, 0); |
1912 | qeth_clear_qdio_buffers(card); | |
1913 | qeth_clear_working_pool_list(card); | |
1914 | card->state = CARD_STATE_DOWN; | |
1915 | } | |
1916 | if (card->state == CARD_STATE_DOWN) { | |
1917 | qeth_clear_cmd_buffers(&card->read); | |
1918 | qeth_clear_cmd_buffers(&card->write); | |
1919 | } | |
4a71df50 FB |
1920 | } |
1921 | ||
76b11f8e UB |
1922 | /* |
1923 | * test for and Switch promiscuous mode (on or off) | |
1924 | * either for guestlan or HiperSocket Sniffer | |
1925 | */ | |
1926 | static void | |
1927 | qeth_l3_handle_promisc_mode(struct qeth_card *card) | |
1928 | { | |
1929 | struct net_device *dev = card->dev; | |
1930 | ||
1931 | if (((dev->flags & IFF_PROMISC) && | |
1932 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || | |
1933 | (!(dev->flags & IFF_PROMISC) && | |
1934 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) | |
1935 | return; | |
1936 | ||
1937 | if (card->info.guestlan) { /* Guestlan trace */ | |
1938 | if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
1939 | qeth_setadp_promisc_mode(card); | |
1940 | } else if (card->options.sniffer && /* HiperSockets trace */ | |
1941 | qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { | |
1942 | if (dev->flags & IFF_PROMISC) { | |
847a50fd | 1943 | QETH_CARD_TEXT(card, 3, "+promisc"); |
76b11f8e UB |
1944 | qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE); |
1945 | } else { | |
847a50fd | 1946 | QETH_CARD_TEXT(card, 3, "-promisc"); |
76b11f8e UB |
1947 | qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE); |
1948 | } | |
1949 | } | |
1950 | } | |
1951 | ||
4a71df50 FB |
1952 | static void qeth_l3_set_multicast_list(struct net_device *dev) |
1953 | { | |
509e2562 | 1954 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 1955 | |
847a50fd | 1956 | QETH_CARD_TEXT(card, 3, "setmulti"); |
8e98ac48 UB |
1957 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
1958 | (card->state != CARD_STATE_UP)) | |
1959 | return; | |
76b11f8e | 1960 | if (!card->options.sniffer) { |
5f78e29c LD |
1961 | |
1962 | spin_lock_bh(&card->mclock); | |
1963 | ||
1964 | qeth_l3_mark_all_mc_to_be_deleted(card); | |
1965 | ||
76b11f8e | 1966 | qeth_l3_add_multicast_ipv4(card); |
4a71df50 | 1967 | #ifdef CONFIG_QETH_IPV6 |
76b11f8e | 1968 | qeth_l3_add_multicast_ipv6(card); |
4a71df50 | 1969 | #endif |
5f78e29c LD |
1970 | qeth_l3_delete_nonused_mc(card); |
1971 | qeth_l3_add_all_new_mc(card); | |
1972 | ||
1973 | spin_unlock_bh(&card->mclock); | |
1974 | ||
76b11f8e UB |
1975 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) |
1976 | return; | |
1977 | } | |
1978 | qeth_l3_handle_promisc_mode(card); | |
4a71df50 FB |
1979 | } |
1980 | ||
1981 | static const char *qeth_l3_arp_get_error_cause(int *rc) | |
1982 | { | |
1983 | switch (*rc) { | |
1984 | case QETH_IPA_ARP_RC_FAILED: | |
1985 | *rc = -EIO; | |
1986 | return "operation failed"; | |
1987 | case QETH_IPA_ARP_RC_NOTSUPP: | |
1988 | *rc = -EOPNOTSUPP; | |
1989 | return "operation not supported"; | |
1990 | case QETH_IPA_ARP_RC_OUT_OF_RANGE: | |
1991 | *rc = -EINVAL; | |
1992 | return "argument out of range"; | |
1993 | case QETH_IPA_ARP_RC_Q_NOTSUPP: | |
1994 | *rc = -EOPNOTSUPP; | |
1995 | return "query operation not supported"; | |
1996 | case QETH_IPA_ARP_RC_Q_NO_DATA: | |
1997 | *rc = -ENOENT; | |
1998 | return "no query data available"; | |
1999 | default: | |
2000 | return "unknown error"; | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries) | |
2005 | { | |
2006 | int tmp; | |
2007 | int rc; | |
2008 | ||
847a50fd | 2009 | QETH_CARD_TEXT(card, 3, "arpstnoe"); |
4a71df50 FB |
2010 | |
2011 | /* | |
2012 | * currently GuestLAN only supports the ARP assist function | |
2013 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES; | |
2014 | * thus we say EOPNOTSUPP for this ARP function | |
2015 | */ | |
2016 | if (card->info.guestlan) | |
2017 | return -EOPNOTSUPP; | |
2018 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2019 | return -EOPNOTSUPP; |
2020 | } | |
4d7def2a | 2021 | rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING, |
4a71df50 FB |
2022 | IPA_CMD_ASS_ARP_SET_NO_ENTRIES, |
2023 | no_entries); | |
2024 | if (rc) { | |
2025 | tmp = rc; | |
14cc21b6 FB |
2026 | QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on " |
2027 | "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card), | |
4a71df50 FB |
2028 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); |
2029 | } | |
2030 | return rc; | |
2031 | } | |
2032 | ||
d0ddf30f EL |
2033 | static __u32 get_arp_entry_size(struct qeth_card *card, |
2034 | struct qeth_arp_query_data *qdata, | |
2035 | struct qeth_arp_entrytype *type, __u8 strip_entries) | |
4a71df50 | 2036 | { |
d0ddf30f EL |
2037 | __u32 rc; |
2038 | __u8 is_hsi; | |
4a71df50 | 2039 | |
d0ddf30f EL |
2040 | is_hsi = qdata->reply_bits == 5; |
2041 | if (type->ip == QETHARP_IP_ADDR_V4) { | |
2042 | QETH_CARD_TEXT(card, 4, "arpev4"); | |
2043 | if (strip_entries) { | |
2044 | rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) : | |
2045 | sizeof(struct qeth_arp_qi_entry7_short); | |
2046 | } else { | |
2047 | rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) : | |
2048 | sizeof(struct qeth_arp_qi_entry7); | |
2049 | } | |
2050 | } else if (type->ip == QETHARP_IP_ADDR_V6) { | |
2051 | QETH_CARD_TEXT(card, 4, "arpev6"); | |
2052 | if (strip_entries) { | |
2053 | rc = is_hsi ? | |
2054 | sizeof(struct qeth_arp_qi_entry5_short_ipv6) : | |
2055 | sizeof(struct qeth_arp_qi_entry7_short_ipv6); | |
2056 | } else { | |
2057 | rc = is_hsi ? | |
2058 | sizeof(struct qeth_arp_qi_entry5_ipv6) : | |
2059 | sizeof(struct qeth_arp_qi_entry7_ipv6); | |
2060 | } | |
2061 | } else { | |
2062 | QETH_CARD_TEXT(card, 4, "arpinv"); | |
2063 | rc = 0; | |
4a71df50 | 2064 | } |
d0ddf30f EL |
2065 | |
2066 | return rc; | |
2067 | } | |
2068 | ||
2069 | static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot) | |
2070 | { | |
2071 | return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) || | |
2072 | (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6); | |
4a71df50 FB |
2073 | } |
2074 | ||
2075 | static int qeth_l3_arp_query_cb(struct qeth_card *card, | |
2076 | struct qeth_reply *reply, unsigned long data) | |
2077 | { | |
2078 | struct qeth_ipa_cmd *cmd; | |
2079 | struct qeth_arp_query_data *qdata; | |
2080 | struct qeth_arp_query_info *qinfo; | |
4a71df50 | 2081 | int i; |
d0ddf30f EL |
2082 | int e; |
2083 | int entrybytes_done; | |
2084 | int stripped_bytes; | |
2085 | __u8 do_strip_entries; | |
4a71df50 | 2086 | |
d0ddf30f | 2087 | QETH_CARD_TEXT(card, 3, "arpquecb"); |
4a71df50 FB |
2088 | |
2089 | qinfo = (struct qeth_arp_query_info *) reply->param; | |
2090 | cmd = (struct qeth_ipa_cmd *) data; | |
d0ddf30f | 2091 | QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version); |
4a71df50 | 2092 | if (cmd->hdr.return_code) { |
d0ddf30f EL |
2093 | QETH_CARD_TEXT(card, 4, "arpcberr"); |
2094 | QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code); | |
4a71df50 FB |
2095 | return 0; |
2096 | } | |
2097 | if (cmd->data.setassparms.hdr.return_code) { | |
2098 | cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; | |
d0ddf30f EL |
2099 | QETH_CARD_TEXT(card, 4, "setaperr"); |
2100 | QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code); | |
4a71df50 FB |
2101 | return 0; |
2102 | } | |
2103 | qdata = &cmd->data.setassparms.data.query_arp; | |
847a50fd | 2104 | QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries); |
4a71df50 | 2105 | |
d0ddf30f EL |
2106 | do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0; |
2107 | stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0; | |
2108 | entrybytes_done = 0; | |
2109 | for (e = 0; e < qdata->no_entries; ++e) { | |
2110 | char *cur_entry; | |
2111 | __u32 esize; | |
2112 | struct qeth_arp_entrytype *etype; | |
2113 | ||
2114 | cur_entry = &qdata->data + entrybytes_done; | |
2115 | etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type; | |
2116 | if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) { | |
2117 | QETH_CARD_TEXT(card, 4, "pmis"); | |
2118 | QETH_CARD_TEXT_(card, 4, "%i", etype->ip); | |
2119 | break; | |
2120 | } | |
2121 | esize = get_arp_entry_size(card, qdata, etype, | |
2122 | do_strip_entries); | |
2123 | QETH_CARD_TEXT_(card, 5, "esz%i", esize); | |
2124 | if (!esize) | |
2125 | break; | |
2126 | ||
2127 | if ((qinfo->udata_len - qinfo->udata_offset) < esize) { | |
2128 | QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM); | |
e0a8114c | 2129 | cmd->hdr.return_code = IPA_RC_ENOMEM; |
d0ddf30f EL |
2130 | goto out_error; |
2131 | } | |
4a71df50 | 2132 | |
d0ddf30f EL |
2133 | memcpy(qinfo->udata + qinfo->udata_offset, |
2134 | &qdata->data + entrybytes_done + stripped_bytes, | |
2135 | esize); | |
2136 | entrybytes_done += esize + stripped_bytes; | |
2137 | qinfo->udata_offset += esize; | |
2138 | ++qinfo->no_entries; | |
2139 | } | |
4a71df50 FB |
2140 | /* check if all replies received ... */ |
2141 | if (cmd->data.setassparms.hdr.seq_no < | |
2142 | cmd->data.setassparms.hdr.number_of_replies) | |
2143 | return 1; | |
d0ddf30f | 2144 | QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries); |
4a71df50 FB |
2145 | memcpy(qinfo->udata, &qinfo->no_entries, 4); |
2146 | /* keep STRIP_ENTRIES flag so the user program can distinguish | |
2147 | * stripped entries from normal ones */ | |
2148 | if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) | |
2149 | qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES; | |
2150 | memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2); | |
d0ddf30f | 2151 | QETH_CARD_TEXT_(card, 4, "rc%i", 0); |
4a71df50 FB |
2152 | return 0; |
2153 | out_error: | |
2154 | i = 0; | |
2155 | memcpy(qinfo->udata, &i, 4); | |
2156 | return 0; | |
2157 | } | |
2158 | ||
2159 | static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card, | |
2160 | struct qeth_cmd_buffer *iob, int len, | |
2161 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
2162 | unsigned long), | |
2163 | void *reply_param) | |
2164 | { | |
847a50fd | 2165 | QETH_CARD_TEXT(card, 4, "sendarp"); |
4a71df50 FB |
2166 | |
2167 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
2168 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
2169 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2170 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, | |
2171 | reply_cb, reply_param); | |
2172 | } | |
2173 | ||
d0ddf30f EL |
2174 | static int qeth_l3_query_arp_cache_info(struct qeth_card *card, |
2175 | enum qeth_prot_versions prot, | |
2176 | struct qeth_arp_query_info *qinfo) | |
4a71df50 FB |
2177 | { |
2178 | struct qeth_cmd_buffer *iob; | |
d0ddf30f | 2179 | struct qeth_ipa_cmd *cmd; |
4a71df50 FB |
2180 | int tmp; |
2181 | int rc; | |
2182 | ||
d0ddf30f EL |
2183 | QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot); |
2184 | ||
b475e316 TR |
2185 | iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, |
2186 | IPA_CMD_ASS_ARP_QUERY_INFO, | |
2187 | sizeof(struct qeth_arp_query_data) | |
2188 | - sizeof(char), | |
2189 | prot); | |
1aec42bc TR |
2190 | if (!iob) |
2191 | return -ENOMEM; | |
d0ddf30f EL |
2192 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
2193 | cmd->data.setassparms.data.query_arp.request_bits = 0x000F; | |
2194 | cmd->data.setassparms.data.query_arp.reply_bits = 0; | |
2195 | cmd->data.setassparms.data.query_arp.no_entries = 0; | |
2196 | rc = qeth_l3_send_ipa_arp_cmd(card, iob, | |
2197 | QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN, | |
2198 | qeth_l3_arp_query_cb, (void *)qinfo); | |
2199 | if (rc) { | |
2200 | tmp = rc; | |
2201 | QETH_DBF_MESSAGE(2, | |
2202 | "Error while querying ARP cache on %s: %s " | |
2203 | "(0x%x/%d)\n", QETH_CARD_IFNAME(card), | |
2204 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); | |
2205 | } | |
2206 | ||
2207 | return rc; | |
2208 | } | |
2209 | ||
2210 | static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata) | |
2211 | { | |
2212 | struct qeth_arp_query_info qinfo = {0, }; | |
2213 | int rc; | |
2214 | ||
847a50fd | 2215 | QETH_CARD_TEXT(card, 3, "arpquery"); |
4a71df50 FB |
2216 | |
2217 | if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/ | |
2218 | IPA_ARP_PROCESSING)) { | |
d0ddf30f EL |
2219 | QETH_CARD_TEXT(card, 3, "arpqnsup"); |
2220 | rc = -EOPNOTSUPP; | |
2221 | goto out; | |
4a71df50 FB |
2222 | } |
2223 | /* get size of userspace buffer and mask_bits -> 6 bytes */ | |
d0ddf30f EL |
2224 | if (copy_from_user(&qinfo, udata, 6)) { |
2225 | rc = -EFAULT; | |
2226 | goto out; | |
2227 | } | |
4a71df50 | 2228 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); |
d0ddf30f EL |
2229 | if (!qinfo.udata) { |
2230 | rc = -ENOMEM; | |
2231 | goto out; | |
2232 | } | |
4a71df50 | 2233 | qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET; |
d0ddf30f | 2234 | rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo); |
4a71df50 | 2235 | if (rc) { |
4a71df50 FB |
2236 | if (copy_to_user(udata, qinfo.udata, 4)) |
2237 | rc = -EFAULT; | |
77a83ed1 SO |
2238 | goto free_and_out; |
2239 | } | |
d0ddf30f | 2240 | #ifdef CONFIG_QETH_IPV6 |
77a83ed1 SO |
2241 | if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) { |
2242 | /* fails in case of GuestLAN QDIO mode */ | |
2243 | qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6, &qinfo); | |
2244 | } | |
d0ddf30f | 2245 | #endif |
77a83ed1 SO |
2246 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) { |
2247 | QETH_CARD_TEXT(card, 4, "qactf"); | |
2248 | rc = -EFAULT; | |
2249 | goto free_and_out; | |
4a71df50 | 2250 | } |
77a83ed1 SO |
2251 | QETH_CARD_TEXT(card, 4, "qacts"); |
2252 | ||
d0ddf30f | 2253 | free_and_out: |
4a71df50 | 2254 | kfree(qinfo.udata); |
d0ddf30f | 2255 | out: |
4a71df50 FB |
2256 | return rc; |
2257 | } | |
2258 | ||
2259 | static int qeth_l3_arp_add_entry(struct qeth_card *card, | |
2260 | struct qeth_arp_cache_entry *entry) | |
2261 | { | |
2262 | struct qeth_cmd_buffer *iob; | |
2263 | char buf[16]; | |
2264 | int tmp; | |
2265 | int rc; | |
2266 | ||
847a50fd | 2267 | QETH_CARD_TEXT(card, 3, "arpadent"); |
4a71df50 FB |
2268 | |
2269 | /* | |
2270 | * currently GuestLAN only supports the ARP assist function | |
2271 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY; | |
2272 | * thus we say EOPNOTSUPP for this ARP function | |
2273 | */ | |
2274 | if (card->info.guestlan) | |
2275 | return -EOPNOTSUPP; | |
2276 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2277 | return -EOPNOTSUPP; |
2278 | } | |
2279 | ||
b475e316 | 2280 | iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, |
4a71df50 FB |
2281 | IPA_CMD_ASS_ARP_ADD_ENTRY, |
2282 | sizeof(struct qeth_arp_cache_entry), | |
2283 | QETH_PROT_IPV4); | |
1aec42bc TR |
2284 | if (!iob) |
2285 | return -ENOMEM; | |
4d7def2a | 2286 | rc = qeth_send_setassparms(card, iob, |
4a71df50 FB |
2287 | sizeof(struct qeth_arp_cache_entry), |
2288 | (unsigned long) entry, | |
8f43fb00 | 2289 | qeth_setassparms_cb, NULL); |
4a71df50 FB |
2290 | if (rc) { |
2291 | tmp = rc; | |
2292 | qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf); | |
14cc21b6 FB |
2293 | QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s " |
2294 | "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card), | |
2295 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); | |
4a71df50 FB |
2296 | } |
2297 | return rc; | |
2298 | } | |
2299 | ||
2300 | static int qeth_l3_arp_remove_entry(struct qeth_card *card, | |
2301 | struct qeth_arp_cache_entry *entry) | |
2302 | { | |
2303 | struct qeth_cmd_buffer *iob; | |
2304 | char buf[16] = {0, }; | |
2305 | int tmp; | |
2306 | int rc; | |
2307 | ||
847a50fd | 2308 | QETH_CARD_TEXT(card, 3, "arprment"); |
4a71df50 FB |
2309 | |
2310 | /* | |
2311 | * currently GuestLAN only supports the ARP assist function | |
2312 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY; | |
2313 | * thus we say EOPNOTSUPP for this ARP function | |
2314 | */ | |
2315 | if (card->info.guestlan) | |
2316 | return -EOPNOTSUPP; | |
2317 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2318 | return -EOPNOTSUPP; |
2319 | } | |
2320 | memcpy(buf, entry, 12); | |
b475e316 | 2321 | iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, |
4a71df50 FB |
2322 | IPA_CMD_ASS_ARP_REMOVE_ENTRY, |
2323 | 12, | |
2324 | QETH_PROT_IPV4); | |
1aec42bc TR |
2325 | if (!iob) |
2326 | return -ENOMEM; | |
4d7def2a | 2327 | rc = qeth_send_setassparms(card, iob, |
4a71df50 | 2328 | 12, (unsigned long)buf, |
8f43fb00 | 2329 | qeth_setassparms_cb, NULL); |
4a71df50 FB |
2330 | if (rc) { |
2331 | tmp = rc; | |
2332 | memset(buf, 0, 16); | |
2333 | qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf); | |
14cc21b6 FB |
2334 | QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s" |
2335 | " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card), | |
2336 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); | |
4a71df50 FB |
2337 | } |
2338 | return rc; | |
2339 | } | |
2340 | ||
2341 | static int qeth_l3_arp_flush_cache(struct qeth_card *card) | |
2342 | { | |
2343 | int rc; | |
2344 | int tmp; | |
2345 | ||
847a50fd | 2346 | QETH_CARD_TEXT(card, 3, "arpflush"); |
4a71df50 FB |
2347 | |
2348 | /* | |
2349 | * currently GuestLAN only supports the ARP assist function | |
2350 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE; | |
2351 | * thus we say EOPNOTSUPP for this ARP function | |
2352 | */ | |
2353 | if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD)) | |
2354 | return -EOPNOTSUPP; | |
2355 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2356 | return -EOPNOTSUPP; |
2357 | } | |
4d7def2a | 2358 | rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING, |
4a71df50 FB |
2359 | IPA_CMD_ASS_ARP_FLUSH_CACHE, 0); |
2360 | if (rc) { | |
2361 | tmp = rc; | |
14cc21b6 FB |
2362 | QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s " |
2363 | "(0x%x/%d)\n", QETH_CARD_IFNAME(card), | |
4a71df50 FB |
2364 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); |
2365 | } | |
2366 | return rc; | |
2367 | } | |
2368 | ||
2369 | static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2370 | { | |
509e2562 | 2371 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 2372 | struct qeth_arp_cache_entry arp_entry; |
4a71df50 FB |
2373 | int rc = 0; |
2374 | ||
4a71df50 FB |
2375 | switch (cmd) { |
2376 | case SIOC_QETH_ARP_SET_NO_ENTRIES: | |
2377 | if (!capable(CAP_NET_ADMIN)) { | |
2378 | rc = -EPERM; | |
2379 | break; | |
2380 | } | |
2381 | rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue); | |
2382 | break; | |
2383 | case SIOC_QETH_ARP_QUERY_INFO: | |
2384 | if (!capable(CAP_NET_ADMIN)) { | |
2385 | rc = -EPERM; | |
2386 | break; | |
2387 | } | |
2388 | rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data); | |
2389 | break; | |
2390 | case SIOC_QETH_ARP_ADD_ENTRY: | |
2391 | if (!capable(CAP_NET_ADMIN)) { | |
2392 | rc = -EPERM; | |
2393 | break; | |
2394 | } | |
2395 | if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, | |
2396 | sizeof(struct qeth_arp_cache_entry))) | |
2397 | rc = -EFAULT; | |
2398 | else | |
2399 | rc = qeth_l3_arp_add_entry(card, &arp_entry); | |
2400 | break; | |
2401 | case SIOC_QETH_ARP_REMOVE_ENTRY: | |
2402 | if (!capable(CAP_NET_ADMIN)) { | |
2403 | rc = -EPERM; | |
2404 | break; | |
2405 | } | |
2406 | if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, | |
2407 | sizeof(struct qeth_arp_cache_entry))) | |
2408 | rc = -EFAULT; | |
2409 | else | |
2410 | rc = qeth_l3_arp_remove_entry(card, &arp_entry); | |
2411 | break; | |
2412 | case SIOC_QETH_ARP_FLUSH_CACHE: | |
2413 | if (!capable(CAP_NET_ADMIN)) { | |
2414 | rc = -EPERM; | |
2415 | break; | |
2416 | } | |
2417 | rc = qeth_l3_arp_flush_cache(card); | |
2418 | break; | |
4a71df50 FB |
2419 | default: |
2420 | rc = -EOPNOTSUPP; | |
2421 | } | |
4a71df50 FB |
2422 | return rc; |
2423 | } | |
2424 | ||
cef6ff22 | 2425 | static int qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb) |
ce73e10e KDW |
2426 | { |
2427 | int cast_type = RTN_UNSPEC; | |
69cce1d1 DM |
2428 | struct neighbour *n = NULL; |
2429 | struct dst_entry *dst; | |
2430 | ||
1d36cb47 | 2431 | rcu_read_lock(); |
69cce1d1 DM |
2432 | dst = skb_dst(skb); |
2433 | if (dst) | |
24db1ba8 | 2434 | n = dst_neigh_lookup_skb(dst, skb); |
69cce1d1 DM |
2435 | if (n) { |
2436 | cast_type = n->type; | |
1d36cb47 | 2437 | rcu_read_unlock(); |
24db1ba8 | 2438 | neigh_release(n); |
ce73e10e KDW |
2439 | if ((cast_type == RTN_BROADCAST) || |
2440 | (cast_type == RTN_MULTICAST) || | |
2441 | (cast_type == RTN_ANYCAST)) | |
2442 | return cast_type; | |
2443 | else | |
2444 | return RTN_UNSPEC; | |
2445 | } | |
1d36cb47 FB |
2446 | rcu_read_unlock(); |
2447 | ||
ce73e10e | 2448 | /* try something else */ |
6bee4e26 | 2449 | if (be16_to_cpu(skb->protocol) == ETH_P_IPV6) |
ce73e10e KDW |
2450 | return (skb_network_header(skb)[24] == 0xff) ? |
2451 | RTN_MULTICAST : 0; | |
6bee4e26 | 2452 | else if (be16_to_cpu(skb->protocol) == ETH_P_IP) |
ce73e10e KDW |
2453 | return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ? |
2454 | RTN_MULTICAST : 0; | |
2455 | /* ... */ | |
2456 | if (!memcmp(skb->data, skb->dev->broadcast, 6)) | |
2457 | return RTN_BROADCAST; | |
2458 | else { | |
2459 | u16 hdr_mac; | |
2460 | ||
2461 | hdr_mac = *((u16 *)skb->data); | |
2462 | /* tr multicast? */ | |
2463 | switch (card->info.link_type) { | |
2464 | case QETH_LINK_TYPE_HSTR: | |
2465 | case QETH_LINK_TYPE_LANE_TR: | |
2466 | if ((hdr_mac == QETH_TR_MAC_NC) || | |
2467 | (hdr_mac == QETH_TR_MAC_C)) | |
2468 | return RTN_MULTICAST; | |
2469 | break; | |
2470 | /* eth or so multicast? */ | |
2471 | default: | |
2472 | if ((hdr_mac == QETH_ETH_MAC_V4) || | |
2473 | (hdr_mac == QETH_ETH_MAC_V6)) | |
2474 | return RTN_MULTICAST; | |
2475 | } | |
2476 | } | |
2477 | return cast_type; | |
2478 | } | |
2479 | ||
b3332930 FB |
2480 | static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card, |
2481 | struct qeth_hdr *hdr, struct sk_buff *skb) | |
2482 | { | |
2483 | char daddr[16]; | |
2484 | struct af_iucv_trans_hdr *iucv_hdr; | |
2485 | ||
b3332930 FB |
2486 | memset(hdr, 0, sizeof(struct qeth_hdr)); |
2487 | hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; | |
2488 | hdr->hdr.l3.ext_flags = 0; | |
acd9776b | 2489 | hdr->hdr.l3.length = skb->len - ETH_HLEN; |
b3332930 | 2490 | hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST; |
acd9776b JW |
2491 | |
2492 | iucv_hdr = (struct af_iucv_trans_hdr *) (skb->data + ETH_HLEN); | |
b3332930 FB |
2493 | memset(daddr, 0, sizeof(daddr)); |
2494 | daddr[0] = 0xfe; | |
2495 | daddr[1] = 0x80; | |
2496 | memcpy(&daddr[8], iucv_hdr->destUserID, 8); | |
2497 | memcpy(hdr->hdr.l3.dest_addr, daddr, 16); | |
2498 | } | |
2499 | ||
4a71df50 FB |
2500 | static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, |
2501 | struct sk_buff *skb, int ipv, int cast_type) | |
2502 | { | |
69cce1d1 DM |
2503 | struct dst_entry *dst; |
2504 | ||
4a71df50 FB |
2505 | memset(hdr, 0, sizeof(struct qeth_hdr)); |
2506 | hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; | |
2507 | hdr->hdr.l3.ext_flags = 0; | |
2508 | ||
2509 | /* | |
2510 | * before we're going to overwrite this location with next hop ip. | |
2511 | * v6 uses passthrough, v4 sets the tag in the QDIO header. | |
2512 | */ | |
df8a39de | 2513 | if (skb_vlan_tag_present(skb)) { |
213298f8 FB |
2514 | if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD)) |
2515 | hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME; | |
2516 | else | |
2517 | hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG; | |
df8a39de | 2518 | hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb); |
4a71df50 FB |
2519 | } |
2520 | ||
2521 | hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr); | |
1d36cb47 FB |
2522 | |
2523 | rcu_read_lock(); | |
69cce1d1 | 2524 | dst = skb_dst(skb); |
4a71df50 | 2525 | if (ipv == 4) { |
87e7597b DM |
2526 | struct rtable *rt = (struct rtable *) dst; |
2527 | __be32 *pkey = &ip_hdr(skb)->daddr; | |
2528 | ||
ec2c6726 | 2529 | if (rt && rt->rt_gateway) |
87e7597b DM |
2530 | pkey = &rt->rt_gateway; |
2531 | ||
4a71df50 FB |
2532 | /* IPv4 */ |
2533 | hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type); | |
2534 | memset(hdr->hdr.l3.dest_addr, 0, 12); | |
87e7597b | 2535 | *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey; |
4a71df50 | 2536 | } else if (ipv == 6) { |
87e7597b DM |
2537 | struct rt6_info *rt = (struct rt6_info *) dst; |
2538 | struct in6_addr *pkey = &ipv6_hdr(skb)->daddr; | |
2539 | ||
ec2c6726 | 2540 | if (rt && !ipv6_addr_any(&rt->rt6i_gateway)) |
87e7597b DM |
2541 | pkey = &rt->rt6i_gateway; |
2542 | ||
4a71df50 FB |
2543 | /* IPv6 */ |
2544 | hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type); | |
2545 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
2546 | hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU; | |
87e7597b | 2547 | memcpy(hdr->hdr.l3.dest_addr, pkey, 16); |
4a71df50 | 2548 | } else { |
1abd2296 | 2549 | if (!memcmp(skb->data + sizeof(struct qeth_hdr), |
4a71df50 FB |
2550 | skb->dev->broadcast, 6)) { |
2551 | /* broadcast? */ | |
2552 | hdr->hdr.l3.flags = QETH_CAST_BROADCAST | | |
2553 | QETH_HDR_PASSTHRU; | |
2554 | } else { | |
2555 | hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ? | |
2556 | QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU : | |
2557 | QETH_CAST_UNICAST | QETH_HDR_PASSTHRU; | |
2558 | } | |
2559 | } | |
1d36cb47 | 2560 | rcu_read_unlock(); |
4a71df50 FB |
2561 | } |
2562 | ||
cef6ff22 JW |
2563 | static void qeth_l3_hdr_csum(struct qeth_card *card, struct qeth_hdr *hdr, |
2564 | struct sk_buff *skb) | |
f6b85b6c FB |
2565 | { |
2566 | struct iphdr *iph = ip_hdr(skb); | |
2567 | ||
2568 | /* tcph->check contains already the pseudo hdr checksum | |
2569 | * so just set the header flags | |
2570 | */ | |
2571 | if (iph->protocol == IPPROTO_UDP) | |
2572 | hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP; | |
16c0f936 FB |
2573 | hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ | |
2574 | QETH_HDR_EXT_CSUM_HDR_REQ; | |
2575 | iph->check = 0; | |
f6b85b6c FB |
2576 | if (card->options.performance_stats) |
2577 | card->perf_stats.tx_csum++; | |
2578 | } | |
2579 | ||
64ef8957 FB |
2580 | static void qeth_tso_fill_header(struct qeth_card *card, |
2581 | struct qeth_hdr *qhdr, struct sk_buff *skb) | |
2582 | { | |
2583 | struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr; | |
2584 | struct tcphdr *tcph = tcp_hdr(skb); | |
2585 | struct iphdr *iph = ip_hdr(skb); | |
2586 | struct ipv6hdr *ip6h = ipv6_hdr(skb); | |
2587 | ||
2588 | /*fix header to TSO values ...*/ | |
2589 | hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; | |
8fa9208e | 2590 | hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso); |
64ef8957 FB |
2591 | /*set values which are fix for the first approach ...*/ |
2592 | hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso); | |
2593 | hdr->ext.imb_hdr_no = 1; | |
2594 | hdr->ext.hdr_type = 1; | |
2595 | hdr->ext.hdr_version = 1; | |
2596 | hdr->ext.hdr_len = 28; | |
2597 | /*insert non-fix values */ | |
2598 | hdr->ext.mss = skb_shinfo(skb)->gso_size; | |
f8eb4930 | 2599 | hdr->ext.dg_hdr_len = (__u16)(ip_hdrlen(skb) + tcp_hdrlen(skb)); |
64ef8957 FB |
2600 | hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - |
2601 | sizeof(struct qeth_hdr_tso)); | |
2602 | tcph->check = 0; | |
6bee4e26 | 2603 | if (be16_to_cpu(skb->protocol) == ETH_P_IPV6) { |
64ef8957 FB |
2604 | ip6h->payload_len = 0; |
2605 | tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, | |
2606 | 0, IPPROTO_TCP, 0); | |
2607 | } else { | |
2608 | /*OSA want us to set these values ...*/ | |
2609 | tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, | |
2610 | 0, IPPROTO_TCP, 0); | |
2611 | iph->tot_len = 0; | |
2612 | iph->check = 0; | |
2613 | } | |
2614 | } | |
2615 | ||
2863c613 | 2616 | /** |
41aeed58 EC |
2617 | * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso |
2618 | * @card: qeth card structure, to check max. elems. | |
2619 | * @skb: SKB address | |
2620 | * @extra_elems: extra elems needed, to check against max. | |
2863c613 EC |
2621 | * |
2622 | * Returns the number of pages, and thus QDIO buffer elements, needed to cover | |
2623 | * skb data, including linear part and fragments, but excluding TCP header. | |
2624 | * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().) | |
2625 | * Checks if the result plus extra_elems fits under the limit for the card. | |
2626 | * Returns 0 if it does not. | |
2627 | * Note: extra_elems is not included in the returned result. | |
2628 | */ | |
41aeed58 | 2629 | static int qeth_l3_get_elements_no_tso(struct qeth_card *card, |
2863c613 | 2630 | struct sk_buff *skb, int extra_elems) |
c3b4a740 | 2631 | { |
2863c613 EC |
2632 | addr_t tcpdptr = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb); |
2633 | int elements = qeth_get_elements_for_range( | |
2634 | tcpdptr, | |
2635 | (addr_t)skb->data + skb_headlen(skb)) + | |
8f43fb00 | 2636 | qeth_get_elements_for_frags(skb); |
271648b4 | 2637 | |
2863c613 EC |
2638 | if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { |
2639 | QETH_DBF_MESSAGE(2, | |
2640 | "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n", | |
2641 | elements + extra_elems, skb->len); | |
2642 | return 0; | |
2643 | } | |
c3b4a740 FB |
2644 | return elements; |
2645 | } | |
2646 | ||
e38db6be JW |
2647 | static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb, |
2648 | struct net_device *dev) | |
4a71df50 FB |
2649 | { |
2650 | int rc; | |
6bee4e26 | 2651 | __be16 *tag; |
4a71df50 | 2652 | struct qeth_hdr *hdr = NULL; |
2863c613 EC |
2653 | int hdr_elements = 0; |
2654 | int elements; | |
509e2562 | 2655 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
2656 | struct sk_buff *new_skb = NULL; |
2657 | int ipv = qeth_get_ip_version(skb); | |
ce73e10e | 2658 | int cast_type = qeth_l3_get_cast_type(card, skb); |
290b8348 SR |
2659 | struct qeth_qdio_out_q *queue = |
2660 | card->qdio.out_qs[card->qdio.do_prio_queueing | |
2661 | || (cast_type && card->info.is_multicast_different) ? | |
2662 | qeth_get_priority_queue(card, skb, ipv, cast_type) : | |
2663 | card->qdio.default_out_queue]; | |
4a71df50 | 2664 | int tx_bytes = skb->len; |
13ddacb5 | 2665 | unsigned int hd_len = 0; |
41aeed58 | 2666 | bool use_tso; |
683d718a | 2667 | int data_offset = -1; |
886e1974 | 2668 | unsigned int nr_frags; |
4a71df50 | 2669 | |
b3332930 FB |
2670 | if (((card->info.type == QETH_CARD_TYPE_IQD) && |
2671 | (((card->options.cq != QETH_CQ_ENABLED) && !ipv) || | |
2672 | ((card->options.cq == QETH_CQ_ENABLED) && | |
6bee4e26 | 2673 | (be16_to_cpu(skb->protocol) != ETH_P_AF_IUCV)))) || |
b3332930 | 2674 | card->options.sniffer) |
4a71df50 FB |
2675 | goto tx_drop; |
2676 | ||
2677 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { | |
2678 | card->stats.tx_carrier_errors++; | |
2679 | goto tx_drop; | |
2680 | } | |
2681 | ||
2682 | if ((cast_type == RTN_BROADCAST) && | |
2683 | (card->info.broadcast_capable == 0)) | |
2684 | goto tx_drop; | |
2685 | ||
2686 | if (card->options.performance_stats) { | |
2687 | card->perf_stats.outbound_cnt++; | |
2688 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
2689 | } | |
2690 | ||
41aeed58 EC |
2691 | /* Ignore segment size from skb_is_gso(), 1 page is always used. */ |
2692 | use_tso = skb_is_gso(skb) && | |
f8eb4930 | 2693 | (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4); |
683d718a | 2694 | |
94a9c981 | 2695 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a | 2696 | new_skb = skb; |
acd9776b | 2697 | data_offset = ETH_HLEN; |
f1588177 | 2698 | hd_len = sizeof(*hdr); |
683d718a FB |
2699 | hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); |
2700 | if (!hdr) | |
2701 | goto tx_drop; | |
2863c613 | 2702 | hdr_elements++; |
683d718a FB |
2703 | } else { |
2704 | /* create a clone with writeable headroom */ | |
2705 | new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso) | |
2706 | + VLAN_HLEN); | |
2707 | if (!new_skb) | |
2708 | goto tx_drop; | |
4a71df50 | 2709 | |
21fde749 | 2710 | if (ipv == 4) { |
1abd2296 | 2711 | skb_pull(new_skb, ETH_HLEN); |
4a71df50 FB |
2712 | } |
2713 | ||
df8a39de | 2714 | if (ipv != 4 && skb_vlan_tag_present(new_skb)) { |
4a71df50 FB |
2715 | skb_push(new_skb, VLAN_HLEN); |
2716 | skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4); | |
2717 | skb_copy_to_linear_data_offset(new_skb, 4, | |
2718 | new_skb->data + 8, 4); | |
2719 | skb_copy_to_linear_data_offset(new_skb, 8, | |
2720 | new_skb->data + 12, 4); | |
6bee4e26 HW |
2721 | tag = (__be16 *)(new_skb->data + 12); |
2722 | *tag = cpu_to_be16(ETH_P_8021Q); | |
2723 | *(tag + 1) = cpu_to_be16(skb_vlan_tag_get(new_skb)); | |
4a71df50 FB |
2724 | } |
2725 | } | |
2726 | ||
2727 | netif_stop_queue(dev); | |
2728 | ||
4a71df50 | 2729 | /* fix hardware limitation: as long as we do not have sbal |
64ef8957 | 2730 | * chaining we can not send long frag lists |
4a71df50 | 2731 | */ |
41aeed58 EC |
2732 | if ((card->info.type != QETH_CARD_TYPE_IQD) && |
2733 | ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) || | |
7d969d2e | 2734 | (!use_tso && !qeth_get_elements_no(card, new_skb, 0, 0)))) { |
6059c905 EC |
2735 | int lin_rc = skb_linearize(new_skb); |
2736 | ||
2737 | if (card->options.performance_stats) { | |
2738 | if (lin_rc) | |
2739 | card->perf_stats.tx_linfail++; | |
2740 | else | |
2741 | card->perf_stats.tx_lin++; | |
2742 | } | |
2743 | if (lin_rc) | |
41aeed58 | 2744 | goto tx_drop; |
64ef8957 | 2745 | } |
886e1974 | 2746 | nr_frags = skb_shinfo(new_skb)->nr_frags; |
4a71df50 | 2747 | |
41aeed58 | 2748 | if (use_tso) { |
d58ff351 | 2749 | hdr = skb_push(new_skb, sizeof(struct qeth_hdr_tso)); |
4a71df50 FB |
2750 | memset(hdr, 0, sizeof(struct qeth_hdr_tso)); |
2751 | qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type); | |
2752 | qeth_tso_fill_header(card, hdr, new_skb); | |
2863c613 | 2753 | hdr_elements++; |
4a71df50 | 2754 | } else { |
683d718a | 2755 | if (data_offset < 0) { |
d58ff351 | 2756 | hdr = skb_push(new_skb, sizeof(struct qeth_hdr)); |
683d718a FB |
2757 | qeth_l3_fill_header(card, hdr, new_skb, ipv, |
2758 | cast_type); | |
2759 | } else { | |
6bee4e26 | 2760 | if (be16_to_cpu(new_skb->protocol) == ETH_P_AF_IUCV) |
b3332930 FB |
2761 | qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb); |
2762 | else { | |
2763 | qeth_l3_fill_header(card, hdr, new_skb, ipv, | |
2764 | cast_type); | |
2765 | hdr->hdr.l3.length = new_skb->len - data_offset; | |
2766 | } | |
683d718a | 2767 | } |
f6b85b6c FB |
2768 | |
2769 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2770 | qeth_l3_hdr_csum(card, hdr, new_skb); | |
4a71df50 FB |
2771 | } |
2772 | ||
41aeed58 EC |
2773 | elements = use_tso ? |
2774 | qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) : | |
7d969d2e JW |
2775 | qeth_get_elements_no(card, new_skb, hdr_elements, |
2776 | (data_offset > 0) ? data_offset : 0); | |
2863c613 | 2777 | if (!elements) { |
64ef8957 FB |
2778 | if (data_offset >= 0) |
2779 | kmem_cache_free(qeth_core_header_cache, hdr); | |
2780 | goto tx_drop; | |
f61a0d05 | 2781 | } |
2863c613 | 2782 | elements += hdr_elements; |
4a71df50 | 2783 | |
51aa165c FB |
2784 | if (card->info.type != QETH_CARD_TYPE_IQD) { |
2785 | int len; | |
13ddacb5 JW |
2786 | if (use_tso) { |
2787 | hd_len = sizeof(struct qeth_hdr_tso) + | |
2788 | ip_hdrlen(new_skb) + tcp_hdrlen(new_skb); | |
2789 | len = hd_len; | |
2790 | } else { | |
51aa165c | 2791 | len = sizeof(struct qeth_hdr_layer3); |
13ddacb5 | 2792 | } |
51aa165c | 2793 | |
d4ae1f5e | 2794 | if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len)) |
51aa165c | 2795 | goto tx_drop; |
13ddacb5 | 2796 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, hd_len, |
9c3bfda9 | 2797 | hd_len, elements); |
51aa165c | 2798 | } else |
7c2e9ba3 JW |
2799 | rc = qeth_do_send_packet_fast(queue, new_skb, hdr, data_offset, |
2800 | hd_len); | |
4a71df50 FB |
2801 | |
2802 | if (!rc) { | |
2803 | card->stats.tx_packets++; | |
2804 | card->stats.tx_bytes += tx_bytes; | |
2805 | if (new_skb != skb) | |
2806 | dev_kfree_skb_any(skb); | |
2807 | if (card->options.performance_stats) { | |
41aeed58 | 2808 | if (use_tso) { |
4a71df50 FB |
2809 | card->perf_stats.large_send_bytes += tx_bytes; |
2810 | card->perf_stats.large_send_cnt++; | |
2811 | } | |
64ef8957 | 2812 | if (nr_frags) { |
4a71df50 FB |
2813 | card->perf_stats.sg_skbs_sent++; |
2814 | /* nr_frags + skb->data */ | |
64ef8957 | 2815 | card->perf_stats.sg_frags_sent += nr_frags + 1; |
4a71df50 FB |
2816 | } |
2817 | } | |
ec634fe3 | 2818 | rc = NETDEV_TX_OK; |
4a71df50 | 2819 | } else { |
683d718a FB |
2820 | if (data_offset >= 0) |
2821 | kmem_cache_free(qeth_core_header_cache, hdr); | |
2822 | ||
4a71df50 FB |
2823 | if (rc == -EBUSY) { |
2824 | if (new_skb != skb) | |
2825 | dev_kfree_skb_any(new_skb); | |
2826 | return NETDEV_TX_BUSY; | |
2827 | } else | |
2828 | goto tx_drop; | |
2829 | } | |
2830 | ||
2831 | netif_wake_queue(dev); | |
2832 | if (card->options.performance_stats) | |
2833 | card->perf_stats.outbound_time += qeth_get_micros() - | |
2834 | card->perf_stats.outbound_start_time; | |
2835 | return rc; | |
2836 | ||
2837 | tx_drop: | |
2838 | card->stats.tx_dropped++; | |
2839 | card->stats.tx_errors++; | |
2840 | if ((new_skb != skb) && new_skb) | |
2841 | dev_kfree_skb_any(new_skb); | |
2842 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 2843 | netif_wake_queue(dev); |
4a71df50 FB |
2844 | return NETDEV_TX_OK; |
2845 | } | |
2846 | ||
39423440 | 2847 | static int __qeth_l3_open(struct net_device *dev) |
4a71df50 | 2848 | { |
509e2562 | 2849 | struct qeth_card *card = dev->ml_priv; |
a1c3ed4c | 2850 | int rc = 0; |
4a71df50 | 2851 | |
847a50fd | 2852 | QETH_CARD_TEXT(card, 4, "qethopen"); |
39423440 UB |
2853 | if (card->state == CARD_STATE_UP) |
2854 | return rc; | |
4a71df50 FB |
2855 | if (card->state != CARD_STATE_SOFTSETUP) |
2856 | return -ENODEV; | |
2857 | card->data.state = CH_STATE_UP; | |
2858 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
2859 | netif_start_queue(dev); |
2860 | ||
a1c3ed4c FB |
2861 | if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { |
2862 | napi_enable(&card->napi); | |
2863 | napi_schedule(&card->napi); | |
2864 | } else | |
2865 | rc = -EIO; | |
2866 | return rc; | |
4a71df50 FB |
2867 | } |
2868 | ||
39423440 UB |
2869 | static int qeth_l3_open(struct net_device *dev) |
2870 | { | |
2871 | struct qeth_card *card = dev->ml_priv; | |
2872 | ||
2873 | QETH_CARD_TEXT(card, 5, "qethope_"); | |
2874 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { | |
2875 | QETH_CARD_TEXT(card, 3, "openREC"); | |
2876 | return -ERESTARTSYS; | |
2877 | } | |
2878 | return __qeth_l3_open(dev); | |
2879 | } | |
2880 | ||
4a71df50 FB |
2881 | static int qeth_l3_stop(struct net_device *dev) |
2882 | { | |
509e2562 | 2883 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 2884 | |
847a50fd | 2885 | QETH_CARD_TEXT(card, 4, "qethstop"); |
4a71df50 | 2886 | netif_tx_disable(dev); |
a1c3ed4c | 2887 | if (card->state == CARD_STATE_UP) { |
4a71df50 | 2888 | card->state = CARD_STATE_SOFTSETUP; |
a1c3ed4c FB |
2889 | napi_disable(&card->napi); |
2890 | } | |
4a71df50 FB |
2891 | return 0; |
2892 | } | |
2893 | ||
0fc0b732 | 2894 | static const struct ethtool_ops qeth_l3_ethtool_ops = { |
4a71df50 | 2895 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
2896 | .get_strings = qeth_core_get_strings, |
2897 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 2898 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 2899 | .get_drvinfo = qeth_core_get_drvinfo, |
993e19c0 | 2900 | .get_link_ksettings = qeth_core_ethtool_get_link_ksettings, |
4a71df50 FB |
2901 | }; |
2902 | ||
2903 | /* | |
2904 | * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting | |
2905 | * NOARP on the netdevice is no option because it also turns off neighbor | |
2906 | * solicitation. For IPv4 we install a neighbor_setup function. We don't want | |
2907 | * arp resolution but we want the hard header (packet socket will work | |
2908 | * e.g. tcpdump) | |
2909 | */ | |
2910 | static int qeth_l3_neigh_setup_noarp(struct neighbour *n) | |
2911 | { | |
2912 | n->nud_state = NUD_NOARP; | |
2913 | memcpy(n->ha, "FAKELL", 6); | |
2914 | n->output = n->ops->connected_output; | |
2915 | return 0; | |
2916 | } | |
2917 | ||
2918 | static int | |
2919 | qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np) | |
2920 | { | |
2921 | if (np->tbl->family == AF_INET) | |
2922 | np->neigh_setup = qeth_l3_neigh_setup_noarp; | |
2923 | ||
2924 | return 0; | |
2925 | } | |
2926 | ||
3d58cefd | 2927 | static const struct net_device_ops qeth_l3_netdev_ops = { |
8403b13c FB |
2928 | .ndo_open = qeth_l3_open, |
2929 | .ndo_stop = qeth_l3_stop, | |
2930 | .ndo_get_stats = qeth_get_stats, | |
2931 | .ndo_start_xmit = qeth_l3_hard_start_xmit, | |
2932 | .ndo_validate_addr = eth_validate_addr, | |
afc4b13d | 2933 | .ndo_set_rx_mode = qeth_l3_set_multicast_list, |
942d6984 | 2934 | .ndo_do_ioctl = qeth_do_ioctl, |
7ff0bcf6 | 2935 | .ndo_change_mtu = qeth_change_mtu, |
8f43fb00 TR |
2936 | .ndo_fix_features = qeth_fix_features, |
2937 | .ndo_set_features = qeth_set_features, | |
8403b13c FB |
2938 | .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, |
2939 | .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, | |
7ff0bcf6 | 2940 | .ndo_tx_timeout = qeth_tx_timeout, |
8403b13c FB |
2941 | }; |
2942 | ||
3d58cefd FB |
2943 | static const struct net_device_ops qeth_l3_osa_netdev_ops = { |
2944 | .ndo_open = qeth_l3_open, | |
2945 | .ndo_stop = qeth_l3_stop, | |
2946 | .ndo_get_stats = qeth_get_stats, | |
2947 | .ndo_start_xmit = qeth_l3_hard_start_xmit, | |
6d69b1f1 | 2948 | .ndo_features_check = qeth_features_check, |
3d58cefd | 2949 | .ndo_validate_addr = eth_validate_addr, |
afc4b13d | 2950 | .ndo_set_rx_mode = qeth_l3_set_multicast_list, |
942d6984 | 2951 | .ndo_do_ioctl = qeth_do_ioctl, |
7ff0bcf6 | 2952 | .ndo_change_mtu = qeth_change_mtu, |
8f43fb00 TR |
2953 | .ndo_fix_features = qeth_fix_features, |
2954 | .ndo_set_features = qeth_set_features, | |
3d58cefd FB |
2955 | .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, |
2956 | .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, | |
7ff0bcf6 | 2957 | .ndo_tx_timeout = qeth_tx_timeout, |
3d58cefd FB |
2958 | .ndo_neigh_setup = qeth_l3_neigh_setup, |
2959 | }; | |
2960 | ||
4a71df50 FB |
2961 | static int qeth_l3_setup_netdev(struct qeth_card *card) |
2962 | { | |
1aec42bc TR |
2963 | int rc; |
2964 | ||
5113fec0 UB |
2965 | if (card->info.type == QETH_CARD_TYPE_OSD || |
2966 | card->info.type == QETH_CARD_TYPE_OSX) { | |
4a71df50 FB |
2967 | if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || |
2968 | (card->info.link_type == QETH_LINK_TYPE_HSTR)) { | |
1abd2296 PG |
2969 | pr_info("qeth_l3: ignoring TR device\n"); |
2970 | return -ENODEV; | |
4a71df50 FB |
2971 | } else { |
2972 | card->dev = alloc_etherdev(0); | |
2973 | if (!card->dev) | |
2974 | return -ENODEV; | |
3d58cefd | 2975 | card->dev->netdev_ops = &qeth_l3_osa_netdev_ops; |
4a71df50 FB |
2976 | |
2977 | /*IPv6 address autoconfiguration stuff*/ | |
2978 | qeth_l3_get_unique_id(card); | |
2979 | if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) | |
2980 | card->dev->dev_id = card->info.unique_id & | |
2981 | 0xffff; | |
c5e631a8 FB |
2982 | if (!card->info.guestlan) { |
2983 | card->dev->hw_features = NETIF_F_SG | | |
2984 | NETIF_F_RXCSUM | NETIF_F_IP_CSUM | | |
2985 | NETIF_F_TSO; | |
9bdc4411 HW |
2986 | card->dev->vlan_features = NETIF_F_SG | |
2987 | NETIF_F_RXCSUM | NETIF_F_IP_CSUM | | |
2988 | NETIF_F_TSO; | |
6d69b1f1 | 2989 | card->dev->features |= NETIF_F_SG; |
c5e631a8 | 2990 | } |
4a71df50 FB |
2991 | } |
2992 | } else if (card->info.type == QETH_CARD_TYPE_IQD) { | |
c835a677 TG |
2993 | card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, |
2994 | ether_setup); | |
4a71df50 FB |
2995 | if (!card->dev) |
2996 | return -ENODEV; | |
2997 | card->dev->flags |= IFF_NOARP; | |
3d58cefd | 2998 | card->dev->netdev_ops = &qeth_l3_netdev_ops; |
1aec42bc TR |
2999 | rc = qeth_l3_iqd_read_initial_mac(card); |
3000 | if (rc) | |
3001 | return rc; | |
b3332930 FB |
3002 | if (card->options.hsuid[0]) |
3003 | memcpy(card->dev->perm_addr, card->options.hsuid, 9); | |
4a71df50 FB |
3004 | } else |
3005 | return -ENODEV; | |
3006 | ||
509e2562 | 3007 | card->dev->ml_priv = card; |
4a71df50 | 3008 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 3009 | card->dev->mtu = card->info.initial_mtu; |
46b3ef4c JW |
3010 | card->dev->min_mtu = 64; |
3011 | card->dev->max_mtu = ETH_MAX_MTU; | |
7ad24ea4 | 3012 | card->dev->ethtool_ops = &qeth_l3_ethtool_ops; |
f646968f PM |
3013 | card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX | |
3014 | NETIF_F_HW_VLAN_CTAG_RX | | |
3015 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
02875878 | 3016 | netif_keep_dst(card->dev); |
0cbff6d4 JW |
3017 | netif_set_gso_max_size(card->dev, (QETH_MAX_BUFFER_ELEMENTS(card) - 1) * |
3018 | PAGE_SIZE); | |
4a71df50 FB |
3019 | |
3020 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
d73ef324 | 3021 | netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT); |
e5ebe632 | 3022 | netif_carrier_off(card->dev); |
4a71df50 FB |
3023 | return register_netdev(card->dev); |
3024 | } | |
3025 | ||
79a04e40 UB |
3026 | static const struct device_type qeth_l3_devtype = { |
3027 | .name = "qeth_layer3", | |
3028 | .groups = qeth_l3_attr_groups, | |
3029 | }; | |
3030 | ||
4a71df50 FB |
3031 | static int qeth_l3_probe_device(struct ccwgroup_device *gdev) |
3032 | { | |
3033 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
9111e788 | 3034 | int rc; |
4a71df50 | 3035 | |
79a04e40 UB |
3036 | if (gdev->dev.type == &qeth_generic_devtype) { |
3037 | rc = qeth_l3_create_device_attributes(&gdev->dev); | |
3038 | if (rc) | |
3039 | return rc; | |
3040 | } | |
ebccc739 UB |
3041 | hash_init(card->ip_htable); |
3042 | hash_init(card->ip_mc_htable); | |
4a71df50 | 3043 | card->options.layer2 = 0; |
1da74b1c | 3044 | card->info.hwtrap = 0; |
4a71df50 FB |
3045 | return 0; |
3046 | } | |
3047 | ||
3048 | static void qeth_l3_remove_device(struct ccwgroup_device *cgdev) | |
3049 | { | |
3050 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
3051 | ||
79a04e40 UB |
3052 | if (cgdev->dev.type == &qeth_generic_devtype) |
3053 | qeth_l3_remove_device_attributes(&cgdev->dev); | |
9dc48ccc | 3054 | |
f2148565 | 3055 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
3056 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
3057 | ||
70919e23 | 3058 | if (cgdev->state == CCWGROUP_ONLINE) |
4a71df50 | 3059 | qeth_l3_set_offline(cgdev); |
4a71df50 FB |
3060 | |
3061 | if (card->dev) { | |
7831b4ff | 3062 | netif_napi_del(&card->napi); |
4a71df50 FB |
3063 | unregister_netdev(card->dev); |
3064 | card->dev = NULL; | |
3065 | } | |
3066 | ||
5f78e29c | 3067 | qeth_l3_clear_ip_htable(card, 0); |
4a71df50 FB |
3068 | qeth_l3_clear_ipato_list(card); |
3069 | return; | |
3070 | } | |
3071 | ||
3072 | static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
3073 | { | |
3074 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
3075 | int rc = 0; | |
3076 | enum qeth_card_states recover_flag; | |
3077 | ||
9dc48ccc | 3078 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 3079 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
3080 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
3081 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 3082 | |
4a71df50 | 3083 | recover_flag = card->state; |
4a71df50 FB |
3084 | rc = qeth_core_hardsetup_card(card); |
3085 | if (rc) { | |
1aec42bc | 3086 | QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); |
aa909224 | 3087 | rc = -ENODEV; |
4a71df50 FB |
3088 | goto out_remove; |
3089 | } | |
3090 | ||
aa909224 UB |
3091 | if (!card->dev && qeth_l3_setup_netdev(card)) { |
3092 | rc = -ENODEV; | |
4a71df50 | 3093 | goto out_remove; |
aa909224 | 3094 | } |
4a71df50 | 3095 | |
1da74b1c FB |
3096 | if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { |
3097 | if (card->info.hwtrap && | |
3098 | qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) | |
3099 | card->info.hwtrap = 0; | |
3100 | } else | |
3101 | card->info.hwtrap = 0; | |
3102 | ||
4a71df50 | 3103 | card->state = CARD_STATE_HARDSETUP; |
a1c3ed4c | 3104 | memset(&card->rx, 0, sizeof(struct qeth_rx)); |
4a71df50 FB |
3105 | qeth_print_status_message(card); |
3106 | ||
3107 | /* softsetup */ | |
d11ba0c4 | 3108 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 | 3109 | |
4a71df50 FB |
3110 | rc = qeth_l3_setadapter_parms(card); |
3111 | if (rc) | |
1aec42bc | 3112 | QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); |
76b11f8e UB |
3113 | if (!card->options.sniffer) { |
3114 | rc = qeth_l3_start_ipassists(card); | |
0f54761d | 3115 | if (rc) { |
76b11f8e | 3116 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
0f54761d SR |
3117 | goto out_remove; |
3118 | } | |
76b11f8e UB |
3119 | rc = qeth_l3_setrouting_v4(card); |
3120 | if (rc) | |
1aec42bc | 3121 | QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc); |
76b11f8e UB |
3122 | rc = qeth_l3_setrouting_v6(card); |
3123 | if (rc) | |
1aec42bc | 3124 | QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc); |
76b11f8e | 3125 | } |
4a71df50 FB |
3126 | netif_tx_disable(card->dev); |
3127 | ||
3128 | rc = qeth_init_qdio_queues(card); | |
3129 | if (rc) { | |
d11ba0c4 | 3130 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 3131 | rc = -ENODEV; |
4a71df50 FB |
3132 | goto out_remove; |
3133 | } | |
3134 | card->state = CARD_STATE_SOFTSETUP; | |
4a71df50 FB |
3135 | |
3136 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
5f78e29c | 3137 | qeth_l3_recover_ip(card); |
2b6203bb UB |
3138 | if (card->lan_online) |
3139 | netif_carrier_on(card->dev); | |
3140 | else | |
3141 | netif_carrier_off(card->dev); | |
8af7c5ae | 3142 | if (recover_flag == CARD_STATE_RECOVER) { |
4763b0a0 | 3143 | rtnl_lock(); |
8af7c5ae | 3144 | if (recovery_mode) |
39423440 | 3145 | __qeth_l3_open(card->dev); |
4763b0a0 | 3146 | else |
8af7c5ae | 3147 | dev_open(card->dev); |
8af7c5ae | 3148 | qeth_l3_set_multicast_list(card->dev); |
e830baa9 | 3149 | qeth_recover_features(card->dev); |
4763b0a0 | 3150 | rtnl_unlock(); |
4a71df50 | 3151 | } |
82f77cf9 | 3152 | qeth_trace_features(card); |
4a71df50 FB |
3153 | /* let user_space know that device is online */ |
3154 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 3155 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 3156 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
3157 | return 0; |
3158 | out_remove: | |
4a71df50 FB |
3159 | qeth_l3_stop_card(card, 0); |
3160 | ccw_device_set_offline(CARD_DDEV(card)); | |
3161 | ccw_device_set_offline(CARD_WDEV(card)); | |
3162 | ccw_device_set_offline(CARD_RDEV(card)); | |
22ae2790 | 3163 | qdio_free(CARD_DDEV(card)); |
4a71df50 FB |
3164 | if (recover_flag == CARD_STATE_RECOVER) |
3165 | card->state = CARD_STATE_RECOVER; | |
3166 | else | |
3167 | card->state = CARD_STATE_DOWN; | |
c4949f07 | 3168 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 3169 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 3170 | return rc; |
4a71df50 FB |
3171 | } |
3172 | ||
3173 | static int qeth_l3_set_online(struct ccwgroup_device *gdev) | |
3174 | { | |
3175 | return __qeth_l3_set_online(gdev, 0); | |
3176 | } | |
3177 | ||
3178 | static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev, | |
3179 | int recovery_mode) | |
3180 | { | |
3181 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
3182 | int rc = 0, rc2 = 0, rc3 = 0; | |
3183 | enum qeth_card_states recover_flag; | |
3184 | ||
9dc48ccc | 3185 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 3186 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
3187 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
3188 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
3189 | |
3190 | if (card->dev && netif_carrier_ok(card->dev)) | |
3191 | netif_carrier_off(card->dev); | |
3192 | recover_flag = card->state; | |
1da74b1c FB |
3193 | if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { |
3194 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
3195 | card->info.hwtrap = 1; | |
3196 | } | |
0f5623c9 | 3197 | qeth_l3_stop_card(card, recovery_mode); |
72861ae7 EL |
3198 | if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) { |
3199 | rtnl_lock(); | |
3200 | call_netdevice_notifiers(NETDEV_REBOOT, card->dev); | |
3201 | rtnl_unlock(); | |
3202 | } | |
4a71df50 FB |
3203 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
3204 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
3205 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
3206 | if (!rc) | |
3207 | rc = (rc2) ? rc2 : rc3; | |
3208 | if (rc) | |
d11ba0c4 | 3209 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
22ae2790 | 3210 | qdio_free(CARD_DDEV(card)); |
4a71df50 FB |
3211 | if (recover_flag == CARD_STATE_UP) |
3212 | card->state = CARD_STATE_RECOVER; | |
3213 | /* let user_space know that device is offline */ | |
3214 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 3215 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 3216 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
3217 | return 0; |
3218 | } | |
3219 | ||
3220 | static int qeth_l3_set_offline(struct ccwgroup_device *cgdev) | |
3221 | { | |
3222 | return __qeth_l3_set_offline(cgdev, 0); | |
3223 | } | |
3224 | ||
3225 | static int qeth_l3_recover(void *ptr) | |
3226 | { | |
3227 | struct qeth_card *card; | |
3228 | int rc = 0; | |
3229 | ||
3230 | card = (struct qeth_card *) ptr; | |
847a50fd CO |
3231 | QETH_CARD_TEXT(card, 2, "recover1"); |
3232 | QETH_CARD_HEX(card, 2, &card, sizeof(void *)); | |
4a71df50 FB |
3233 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
3234 | return 0; | |
847a50fd | 3235 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
3236 | dev_warn(&card->gdev->dev, |
3237 | "A recovery process has been started for the device\n"); | |
65d8013c | 3238 | qeth_set_recovery_task(card); |
4a71df50 FB |
3239 | __qeth_l3_set_offline(card->gdev, 1); |
3240 | rc = __qeth_l3_set_online(card->gdev, 1); | |
4a71df50 | 3241 | if (!rc) |
74eacdb9 FB |
3242 | dev_info(&card->gdev->dev, |
3243 | "Device successfully recovered!\n"); | |
28a7e4c9 | 3244 | else { |
0f54761d SR |
3245 | qeth_close_dev(card); |
3246 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
2efaf5ff | 3247 | "failed to recover an error on the device\n"); |
28a7e4c9 | 3248 | } |
65d8013c | 3249 | qeth_clear_recovery_task(card); |
a1c3ed4c FB |
3250 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
3251 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
3252 | return 0; |
3253 | } | |
3254 | ||
bbcfcdc8 FB |
3255 | static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev) |
3256 | { | |
3257 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
3258 | ||
3259 | if (card->dev) | |
3260 | netif_device_detach(card->dev); | |
3261 | qeth_set_allowed_threads(card, 0, 1); | |
3262 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
3263 | if (gdev->state == CCWGROUP_OFFLINE) | |
3264 | return 0; | |
3265 | if (card->state == CARD_STATE_UP) { | |
1da74b1c FB |
3266 | if (card->info.hwtrap) |
3267 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
bbcfcdc8 FB |
3268 | __qeth_l3_set_offline(card->gdev, 1); |
3269 | } else | |
3270 | __qeth_l3_set_offline(card->gdev, 0); | |
3271 | return 0; | |
3272 | } | |
3273 | ||
3274 | static int qeth_l3_pm_resume(struct ccwgroup_device *gdev) | |
3275 | { | |
3276 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
3277 | int rc = 0; | |
3278 | ||
3279 | if (gdev->state == CCWGROUP_OFFLINE) | |
3280 | goto out; | |
3281 | ||
3282 | if (card->state == CARD_STATE_RECOVER) { | |
3283 | rc = __qeth_l3_set_online(card->gdev, 1); | |
3284 | if (rc) { | |
869da90b UB |
3285 | rtnl_lock(); |
3286 | dev_close(card->dev); | |
3287 | rtnl_unlock(); | |
bbcfcdc8 FB |
3288 | } |
3289 | } else | |
3290 | rc = __qeth_l3_set_online(card->gdev, 0); | |
3291 | out: | |
3292 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
3293 | if (card->dev) | |
3294 | netif_device_attach(card->dev); | |
3295 | if (rc) | |
3296 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
3297 | "failed to recover an error on the device\n"); | |
3298 | return rc; | |
3299 | } | |
3300 | ||
c044dc21 EC |
3301 | /* Returns zero if the command is successfully "consumed" */ |
3302 | static int qeth_l3_control_event(struct qeth_card *card, | |
3303 | struct qeth_ipa_cmd *cmd) | |
3304 | { | |
3305 | return 1; | |
3306 | } | |
3307 | ||
c041f2d4 | 3308 | struct qeth_discipline qeth_l3_discipline = { |
79a04e40 | 3309 | .devtype = &qeth_l3_devtype, |
c041f2d4 SO |
3310 | .start_poll = qeth_qdio_start_poll, |
3311 | .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, | |
3312 | .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, | |
d73ef324 | 3313 | .process_rx_buffer = qeth_l3_process_inbound_buffer, |
c041f2d4 SO |
3314 | .recover = qeth_l3_recover, |
3315 | .setup = qeth_l3_probe_device, | |
4a71df50 FB |
3316 | .remove = qeth_l3_remove_device, |
3317 | .set_online = qeth_l3_set_online, | |
3318 | .set_offline = qeth_l3_set_offline, | |
bbcfcdc8 FB |
3319 | .freeze = qeth_l3_pm_suspend, |
3320 | .thaw = qeth_l3_pm_resume, | |
3321 | .restore = qeth_l3_pm_resume, | |
942d6984 | 3322 | .do_ioctl = qeth_l3_do_ioctl, |
c044dc21 | 3323 | .control_event_handler = qeth_l3_control_event, |
4a71df50 | 3324 | }; |
c041f2d4 | 3325 | EXPORT_SYMBOL_GPL(qeth_l3_discipline); |
4a71df50 FB |
3326 | |
3327 | static int qeth_l3_ip_event(struct notifier_block *this, | |
76fef2b6 | 3328 | unsigned long event, void *ptr) |
4a71df50 | 3329 | { |
5f78e29c | 3330 | |
4a71df50 FB |
3331 | struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; |
3332 | struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev; | |
3333 | struct qeth_ipaddr *addr; | |
3334 | struct qeth_card *card; | |
3335 | ||
c346dca1 | 3336 | if (dev_net(dev) != &init_net) |
76fef2b6 DM |
3337 | return NOTIFY_DONE; |
3338 | ||
4a71df50 FB |
3339 | card = qeth_l3_get_card_from_dev(dev); |
3340 | if (!card) | |
3341 | return NOTIFY_DONE; | |
6d8823db | 3342 | QETH_CARD_TEXT(card, 3, "ipevent"); |
4a71df50 FB |
3343 | |
3344 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); | |
5f78e29c | 3345 | if (addr) { |
6bee4e26 HW |
3346 | addr->u.a4.addr = be32_to_cpu(ifa->ifa_address); |
3347 | addr->u.a4.mask = be32_to_cpu(ifa->ifa_mask); | |
4a71df50 FB |
3348 | addr->type = QETH_IP_TYPE_NORMAL; |
3349 | } else | |
5f78e29c | 3350 | return NOTIFY_DONE; |
4a71df50 FB |
3351 | |
3352 | switch (event) { | |
3353 | case NETDEV_UP: | |
5f78e29c LD |
3354 | spin_lock_bh(&card->ip_lock); |
3355 | qeth_l3_add_ip(card, addr); | |
3356 | spin_unlock_bh(&card->ip_lock); | |
4a71df50 FB |
3357 | break; |
3358 | case NETDEV_DOWN: | |
5f78e29c LD |
3359 | spin_lock_bh(&card->ip_lock); |
3360 | qeth_l3_delete_ip(card, addr); | |
3361 | spin_unlock_bh(&card->ip_lock); | |
4a71df50 FB |
3362 | break; |
3363 | } | |
5f78e29c LD |
3364 | |
3365 | kfree(addr); | |
4a71df50 FB |
3366 | return NOTIFY_DONE; |
3367 | } | |
3368 | ||
3369 | static struct notifier_block qeth_l3_ip_notifier = { | |
3370 | qeth_l3_ip_event, | |
3371 | NULL, | |
3372 | }; | |
3373 | ||
3374 | #ifdef CONFIG_QETH_IPV6 | |
3375 | /** | |
3376 | * IPv6 event handler | |
3377 | */ | |
3378 | static int qeth_l3_ip6_event(struct notifier_block *this, | |
76fef2b6 | 3379 | unsigned long event, void *ptr) |
4a71df50 FB |
3380 | { |
3381 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; | |
3382 | struct net_device *dev = (struct net_device *)ifa->idev->dev; | |
3383 | struct qeth_ipaddr *addr; | |
3384 | struct qeth_card *card; | |
3385 | ||
4a71df50 FB |
3386 | card = qeth_l3_get_card_from_dev(dev); |
3387 | if (!card) | |
3388 | return NOTIFY_DONE; | |
847a50fd | 3389 | QETH_CARD_TEXT(card, 3, "ip6event"); |
4a71df50 FB |
3390 | if (!qeth_is_supported(card, IPA_IPV6)) |
3391 | return NOTIFY_DONE; | |
3392 | ||
3393 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); | |
5f78e29c | 3394 | if (addr) { |
4a71df50 FB |
3395 | memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr)); |
3396 | addr->u.a6.pfxlen = ifa->prefix_len; | |
3397 | addr->type = QETH_IP_TYPE_NORMAL; | |
3398 | } else | |
5f78e29c | 3399 | return NOTIFY_DONE; |
4a71df50 FB |
3400 | |
3401 | switch (event) { | |
3402 | case NETDEV_UP: | |
5f78e29c LD |
3403 | spin_lock_bh(&card->ip_lock); |
3404 | qeth_l3_add_ip(card, addr); | |
3405 | spin_unlock_bh(&card->ip_lock); | |
4a71df50 FB |
3406 | break; |
3407 | case NETDEV_DOWN: | |
5f78e29c LD |
3408 | spin_lock_bh(&card->ip_lock); |
3409 | qeth_l3_delete_ip(card, addr); | |
3410 | spin_unlock_bh(&card->ip_lock); | |
4a71df50 FB |
3411 | break; |
3412 | } | |
5f78e29c LD |
3413 | |
3414 | kfree(addr); | |
4a71df50 FB |
3415 | return NOTIFY_DONE; |
3416 | } | |
3417 | ||
3418 | static struct notifier_block qeth_l3_ip6_notifier = { | |
3419 | qeth_l3_ip6_event, | |
3420 | NULL, | |
3421 | }; | |
3422 | #endif | |
3423 | ||
3424 | static int qeth_l3_register_notifiers(void) | |
3425 | { | |
3426 | int rc; | |
3427 | ||
847a50fd | 3428 | QETH_DBF_TEXT(SETUP, 5, "regnotif"); |
4a71df50 FB |
3429 | rc = register_inetaddr_notifier(&qeth_l3_ip_notifier); |
3430 | if (rc) | |
3431 | return rc; | |
3432 | #ifdef CONFIG_QETH_IPV6 | |
3433 | rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier); | |
3434 | if (rc) { | |
3435 | unregister_inetaddr_notifier(&qeth_l3_ip_notifier); | |
3436 | return rc; | |
3437 | } | |
3438 | #else | |
baebc70a | 3439 | pr_warn("There is no IPv6 support for the layer 3 discipline\n"); |
4a71df50 FB |
3440 | #endif |
3441 | return 0; | |
3442 | } | |
3443 | ||
3444 | static void qeth_l3_unregister_notifiers(void) | |
3445 | { | |
3446 | ||
847a50fd | 3447 | QETH_DBF_TEXT(SETUP, 5, "unregnot"); |
18af5c17 | 3448 | WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier)); |
4a71df50 | 3449 | #ifdef CONFIG_QETH_IPV6 |
18af5c17 | 3450 | WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier)); |
4a71df50 FB |
3451 | #endif /* QETH_IPV6 */ |
3452 | } | |
3453 | ||
3454 | static int __init qeth_l3_init(void) | |
3455 | { | |
3456 | int rc = 0; | |
3457 | ||
74eacdb9 | 3458 | pr_info("register layer 3 discipline\n"); |
4a71df50 FB |
3459 | rc = qeth_l3_register_notifiers(); |
3460 | return rc; | |
3461 | } | |
3462 | ||
3463 | static void __exit qeth_l3_exit(void) | |
3464 | { | |
3465 | qeth_l3_unregister_notifiers(); | |
74eacdb9 | 3466 | pr_info("unregister layer 3 discipline\n"); |
4a71df50 FB |
3467 | } |
3468 | ||
3469 | module_init(qeth_l3_init); | |
3470 | module_exit(qeth_l3_exit); | |
3471 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
3472 | MODULE_DESCRIPTION("qeth layer 3 discipline"); | |
3473 | MODULE_LICENSE("GPL"); |