Commit | Line | Data |
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4a71df50 FB |
1 | /* |
2 | * drivers/s390/net/qeth_l3_main.c | |
3 | * | |
4 | * Copyright IBM Corp. 2007 | |
5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, | |
6 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
7 | * Thomas Spatzier <tspat@de.ibm.com>, | |
8 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
9 | */ | |
10 | ||
74eacdb9 FB |
11 | #define KMSG_COMPONENT "qeth" |
12 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
13 | ||
4a71df50 FB |
14 | #include <linux/module.h> |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/etherdevice.h> | |
20 | #include <linux/mii.h> | |
21 | #include <linux/ip.h> | |
64ef8957 | 22 | #include <linux/ipv6.h> |
4a71df50 FB |
23 | #include <linux/inetdevice.h> |
24 | #include <linux/igmp.h> | |
25 | ||
26 | #include <net/ip.h> | |
27 | #include <net/arp.h> | |
64ef8957 | 28 | #include <net/ip6_checksum.h> |
4a71df50 | 29 | |
4a71df50 | 30 | #include "qeth_l3.h" |
4a71df50 | 31 | |
4a71df50 FB |
32 | static int qeth_l3_set_offline(struct ccwgroup_device *); |
33 | static int qeth_l3_recover(void *); | |
34 | static int qeth_l3_stop(struct net_device *); | |
35 | static void qeth_l3_set_multicast_list(struct net_device *); | |
36 | static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *); | |
37 | static int qeth_l3_register_addr_entry(struct qeth_card *, | |
38 | struct qeth_ipaddr *); | |
39 | static int qeth_l3_deregister_addr_entry(struct qeth_card *, | |
40 | struct qeth_ipaddr *); | |
41 | static int __qeth_l3_set_online(struct ccwgroup_device *, int); | |
42 | static int __qeth_l3_set_offline(struct ccwgroup_device *, int); | |
43 | ||
44 | ||
45 | static int qeth_l3_isxdigit(char *buf) | |
46 | { | |
47 | while (*buf) { | |
48 | if (!isxdigit(*buf++)) | |
49 | return 0; | |
50 | } | |
51 | return 1; | |
52 | } | |
53 | ||
54 | void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf) | |
55 | { | |
56 | sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]); | |
57 | } | |
58 | ||
59 | int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr) | |
60 | { | |
61 | int count = 0, rc = 0; | |
62 | int in[4]; | |
63 | char c; | |
64 | ||
65 | rc = sscanf(buf, "%u.%u.%u.%u%c", | |
66 | &in[0], &in[1], &in[2], &in[3], &c); | |
67 | if (rc != 4 && (rc != 5 || c != '\n')) | |
68 | return -EINVAL; | |
69 | for (count = 0; count < 4; count++) { | |
70 | if (in[count] > 255) | |
71 | return -EINVAL; | |
72 | addr[count] = in[count]; | |
73 | } | |
74 | return 0; | |
75 | } | |
76 | ||
77 | void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf) | |
78 | { | |
79 | sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x" | |
80 | ":%02x%02x:%02x%02x:%02x%02x:%02x%02x", | |
81 | addr[0], addr[1], addr[2], addr[3], | |
82 | addr[4], addr[5], addr[6], addr[7], | |
83 | addr[8], addr[9], addr[10], addr[11], | |
84 | addr[12], addr[13], addr[14], addr[15]); | |
85 | } | |
86 | ||
87 | int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr) | |
88 | { | |
89 | const char *end, *end_tmp, *start; | |
90 | __u16 *in; | |
91 | char num[5]; | |
92 | int num2, cnt, out, found, save_cnt; | |
93 | unsigned short in_tmp[8] = {0, }; | |
94 | ||
95 | cnt = out = found = save_cnt = num2 = 0; | |
96 | end = start = buf; | |
97 | in = (__u16 *) addr; | |
98 | memset(in, 0, 16); | |
99 | while (*end) { | |
100 | end = strchr(start, ':'); | |
101 | if (end == NULL) { | |
102 | end = buf + strlen(buf); | |
103 | end_tmp = strchr(start, '\n'); | |
104 | if (end_tmp != NULL) | |
105 | end = end_tmp; | |
106 | out = 1; | |
107 | } | |
108 | if ((end - start)) { | |
109 | memset(num, 0, 5); | |
110 | if ((end - start) > 4) | |
111 | return -EINVAL; | |
112 | memcpy(num, start, end - start); | |
113 | if (!qeth_l3_isxdigit(num)) | |
114 | return -EINVAL; | |
115 | sscanf(start, "%x", &num2); | |
116 | if (found) | |
117 | in_tmp[save_cnt++] = num2; | |
118 | else | |
119 | in[cnt++] = num2; | |
120 | if (out) | |
121 | break; | |
122 | } else { | |
123 | if (found) | |
124 | return -EINVAL; | |
125 | found = 1; | |
126 | } | |
127 | start = ++end; | |
128 | } | |
129 | if (cnt + save_cnt > 8) | |
130 | return -EINVAL; | |
131 | cnt = 7; | |
132 | while (save_cnt) | |
133 | in[cnt--] = in_tmp[--save_cnt]; | |
134 | return 0; | |
135 | } | |
136 | ||
137 | void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr, | |
138 | char *buf) | |
139 | { | |
140 | if (proto == QETH_PROT_IPV4) | |
141 | qeth_l3_ipaddr4_to_string(addr, buf); | |
142 | else if (proto == QETH_PROT_IPV6) | |
143 | qeth_l3_ipaddr6_to_string(addr, buf); | |
144 | } | |
145 | ||
146 | int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto, | |
147 | __u8 *addr) | |
148 | { | |
149 | if (proto == QETH_PROT_IPV4) | |
150 | return qeth_l3_string_to_ipaddr4(buf, addr); | |
151 | else if (proto == QETH_PROT_IPV6) | |
152 | return qeth_l3_string_to_ipaddr6(buf, addr); | |
153 | else | |
154 | return -EINVAL; | |
155 | } | |
156 | ||
157 | static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len) | |
158 | { | |
159 | int i, j; | |
160 | u8 octet; | |
161 | ||
162 | for (i = 0; i < len; ++i) { | |
163 | octet = addr[i]; | |
164 | for (j = 7; j >= 0; --j) { | |
165 | bits[i*8 + j] = octet & 1; | |
166 | octet >>= 1; | |
167 | } | |
168 | } | |
169 | } | |
170 | ||
171 | static int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card, | |
172 | struct qeth_ipaddr *addr) | |
173 | { | |
174 | struct qeth_ipato_entry *ipatoe; | |
175 | u8 addr_bits[128] = {0, }; | |
176 | u8 ipatoe_bits[128] = {0, }; | |
177 | int rc = 0; | |
178 | ||
179 | if (!card->ipato.enabled) | |
180 | return 0; | |
181 | ||
182 | qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits, | |
183 | (addr->proto == QETH_PROT_IPV4)? 4:16); | |
184 | list_for_each_entry(ipatoe, &card->ipato.entries, entry) { | |
185 | if (addr->proto != ipatoe->proto) | |
186 | continue; | |
187 | qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits, | |
188 | (ipatoe->proto == QETH_PROT_IPV4) ? | |
189 | 4 : 16); | |
190 | if (addr->proto == QETH_PROT_IPV4) | |
191 | rc = !memcmp(addr_bits, ipatoe_bits, | |
192 | min(32, ipatoe->mask_bits)); | |
193 | else | |
194 | rc = !memcmp(addr_bits, ipatoe_bits, | |
195 | min(128, ipatoe->mask_bits)); | |
196 | if (rc) | |
197 | break; | |
198 | } | |
199 | /* invert? */ | |
200 | if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4) | |
201 | rc = !rc; | |
202 | else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6) | |
203 | rc = !rc; | |
204 | ||
205 | return rc; | |
206 | } | |
207 | ||
208 | /* | |
209 | * Add IP to be added to todo list. If there is already an "add todo" | |
210 | * in this list we just incremenent the reference count. | |
211 | * Returns 0 if we just incremented reference count. | |
212 | */ | |
213 | static int __qeth_l3_insert_ip_todo(struct qeth_card *card, | |
214 | struct qeth_ipaddr *addr, int add) | |
215 | { | |
216 | struct qeth_ipaddr *tmp, *t; | |
217 | int found = 0; | |
218 | ||
219 | list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) { | |
220 | if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) && | |
221 | (tmp->type == QETH_IP_TYPE_DEL_ALL_MC)) | |
222 | return 0; | |
223 | if ((tmp->proto == QETH_PROT_IPV4) && | |
224 | (addr->proto == QETH_PROT_IPV4) && | |
225 | (tmp->type == addr->type) && | |
226 | (tmp->is_multicast == addr->is_multicast) && | |
227 | (tmp->u.a4.addr == addr->u.a4.addr) && | |
228 | (tmp->u.a4.mask == addr->u.a4.mask)) { | |
229 | found = 1; | |
230 | break; | |
231 | } | |
232 | if ((tmp->proto == QETH_PROT_IPV6) && | |
233 | (addr->proto == QETH_PROT_IPV6) && | |
234 | (tmp->type == addr->type) && | |
235 | (tmp->is_multicast == addr->is_multicast) && | |
236 | (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) && | |
237 | (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr, | |
238 | sizeof(struct in6_addr)) == 0)) { | |
239 | found = 1; | |
240 | break; | |
241 | } | |
242 | } | |
243 | if (found) { | |
244 | if (addr->users != 0) | |
245 | tmp->users += addr->users; | |
246 | else | |
247 | tmp->users += add ? 1 : -1; | |
248 | if (tmp->users == 0) { | |
249 | list_del(&tmp->entry); | |
250 | kfree(tmp); | |
251 | } | |
252 | return 0; | |
253 | } else { | |
254 | if (addr->type == QETH_IP_TYPE_DEL_ALL_MC) | |
255 | list_add(&addr->entry, card->ip_tbd_list); | |
256 | else { | |
257 | if (addr->users == 0) | |
258 | addr->users += add ? 1 : -1; | |
259 | if (add && (addr->type == QETH_IP_TYPE_NORMAL) && | |
260 | qeth_l3_is_addr_covered_by_ipato(card, addr)) { | |
d11ba0c4 | 261 | QETH_DBF_TEXT(TRACE, 2, "tkovaddr"); |
4a71df50 FB |
262 | addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; |
263 | } | |
264 | list_add_tail(&addr->entry, card->ip_tbd_list); | |
265 | } | |
266 | return 1; | |
267 | } | |
268 | } | |
269 | ||
270 | static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr) | |
271 | { | |
272 | unsigned long flags; | |
273 | int rc = 0; | |
274 | ||
d11ba0c4 | 275 | QETH_DBF_TEXT(TRACE, 4, "delip"); |
4a71df50 FB |
276 | |
277 | if (addr->proto == QETH_PROT_IPV4) | |
d11ba0c4 | 278 | QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4); |
4a71df50 | 279 | else { |
d11ba0c4 PT |
280 | QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8); |
281 | QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8); | |
4a71df50 FB |
282 | } |
283 | spin_lock_irqsave(&card->ip_lock, flags); | |
284 | rc = __qeth_l3_insert_ip_todo(card, addr, 0); | |
285 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
286 | return rc; | |
287 | } | |
288 | ||
289 | static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr) | |
290 | { | |
291 | unsigned long flags; | |
292 | int rc = 0; | |
293 | ||
d11ba0c4 | 294 | QETH_DBF_TEXT(TRACE, 4, "addip"); |
4a71df50 | 295 | if (addr->proto == QETH_PROT_IPV4) |
d11ba0c4 | 296 | QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4); |
4a71df50 | 297 | else { |
d11ba0c4 PT |
298 | QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8); |
299 | QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8); | |
4a71df50 FB |
300 | } |
301 | spin_lock_irqsave(&card->ip_lock, flags); | |
302 | rc = __qeth_l3_insert_ip_todo(card, addr, 1); | |
303 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
304 | return rc; | |
305 | } | |
306 | ||
307 | ||
308 | static struct qeth_ipaddr *qeth_l3_get_addr_buffer( | |
309 | enum qeth_prot_versions prot) | |
310 | { | |
311 | struct qeth_ipaddr *addr; | |
312 | ||
313 | addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC); | |
314 | if (addr == NULL) { | |
4a71df50 FB |
315 | return NULL; |
316 | } | |
317 | addr->type = QETH_IP_TYPE_NORMAL; | |
318 | addr->proto = prot; | |
319 | return addr; | |
320 | } | |
321 | ||
322 | static void qeth_l3_delete_mc_addresses(struct qeth_card *card) | |
323 | { | |
324 | struct qeth_ipaddr *iptodo; | |
325 | unsigned long flags; | |
326 | ||
d11ba0c4 | 327 | QETH_DBF_TEXT(TRACE, 4, "delmc"); |
4a71df50 FB |
328 | iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); |
329 | if (!iptodo) { | |
d11ba0c4 | 330 | QETH_DBF_TEXT(TRACE, 2, "dmcnomem"); |
4a71df50 FB |
331 | return; |
332 | } | |
333 | iptodo->type = QETH_IP_TYPE_DEL_ALL_MC; | |
334 | spin_lock_irqsave(&card->ip_lock, flags); | |
335 | if (!__qeth_l3_insert_ip_todo(card, iptodo, 0)) | |
336 | kfree(iptodo); | |
337 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
338 | } | |
339 | ||
340 | /* | |
341 | * Add/remove address to/from card's ip list, i.e. try to add or remove | |
342 | * reference to/from an IP address that is already registered on the card. | |
343 | * Returns: | |
344 | * 0 address was on card and its reference count has been adjusted, | |
345 | * but is still > 0, so nothing has to be done | |
346 | * also returns 0 if card was not on card and the todo was to delete | |
347 | * the address -> there is also nothing to be done | |
348 | * 1 address was not on card and the todo is to add it to the card's ip | |
349 | * list | |
350 | * -1 address was on card and its reference count has been decremented | |
351 | * to <= 0 by the todo -> address must be removed from card | |
352 | */ | |
353 | static int __qeth_l3_ref_ip_on_card(struct qeth_card *card, | |
354 | struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr) | |
355 | { | |
356 | struct qeth_ipaddr *addr; | |
357 | int found = 0; | |
358 | ||
359 | list_for_each_entry(addr, &card->ip_list, entry) { | |
360 | if ((addr->proto == QETH_PROT_IPV4) && | |
361 | (todo->proto == QETH_PROT_IPV4) && | |
362 | (addr->type == todo->type) && | |
363 | (addr->u.a4.addr == todo->u.a4.addr) && | |
364 | (addr->u.a4.mask == todo->u.a4.mask)) { | |
365 | found = 1; | |
366 | break; | |
367 | } | |
368 | if ((addr->proto == QETH_PROT_IPV6) && | |
369 | (todo->proto == QETH_PROT_IPV6) && | |
370 | (addr->type == todo->type) && | |
371 | (addr->u.a6.pfxlen == todo->u.a6.pfxlen) && | |
372 | (memcmp(&addr->u.a6.addr, &todo->u.a6.addr, | |
373 | sizeof(struct in6_addr)) == 0)) { | |
374 | found = 1; | |
375 | break; | |
376 | } | |
377 | } | |
378 | if (found) { | |
379 | addr->users += todo->users; | |
380 | if (addr->users <= 0) { | |
381 | *__addr = addr; | |
382 | return -1; | |
383 | } else { | |
384 | /* for VIPA and RXIP limit refcount to 1 */ | |
385 | if (addr->type != QETH_IP_TYPE_NORMAL) | |
386 | addr->users = 1; | |
387 | return 0; | |
388 | } | |
389 | } | |
390 | if (todo->users > 0) { | |
391 | /* for VIPA and RXIP limit refcount to 1 */ | |
392 | if (todo->type != QETH_IP_TYPE_NORMAL) | |
393 | todo->users = 1; | |
394 | return 1; | |
395 | } else | |
396 | return 0; | |
397 | } | |
398 | ||
399 | static void __qeth_l3_delete_all_mc(struct qeth_card *card, | |
400 | unsigned long *flags) | |
401 | { | |
2d921c32 | 402 | struct list_head fail_list; |
4a71df50 FB |
403 | struct qeth_ipaddr *addr, *tmp; |
404 | int rc; | |
2d921c32 UB |
405 | |
406 | INIT_LIST_HEAD(&fail_list); | |
4a71df50 FB |
407 | again: |
408 | list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) { | |
409 | if (addr->is_multicast) { | |
410 | list_del(&addr->entry); | |
411 | spin_unlock_irqrestore(&card->ip_lock, *flags); | |
412 | rc = qeth_l3_deregister_addr_entry(card, addr); | |
413 | spin_lock_irqsave(&card->ip_lock, *flags); | |
2d921c32 | 414 | if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) |
4a71df50 | 415 | kfree(addr); |
2d921c32 UB |
416 | else |
417 | list_add_tail(&addr->entry, &fail_list); | |
418 | goto again; | |
4a71df50 FB |
419 | } |
420 | } | |
2d921c32 | 421 | list_splice(&fail_list, &card->ip_list); |
4a71df50 FB |
422 | } |
423 | ||
424 | static void qeth_l3_set_ip_addr_list(struct qeth_card *card) | |
425 | { | |
426 | struct list_head *tbd_list; | |
427 | struct qeth_ipaddr *todo, *addr; | |
428 | unsigned long flags; | |
429 | int rc; | |
430 | ||
d11ba0c4 PT |
431 | QETH_DBF_TEXT(TRACE, 2, "sdiplist"); |
432 | QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); | |
4a71df50 FB |
433 | |
434 | spin_lock_irqsave(&card->ip_lock, flags); | |
435 | tbd_list = card->ip_tbd_list; | |
436 | card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC); | |
437 | if (!card->ip_tbd_list) { | |
d11ba0c4 | 438 | QETH_DBF_TEXT(TRACE, 0, "silnomem"); |
4a71df50 FB |
439 | card->ip_tbd_list = tbd_list; |
440 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
441 | return; | |
442 | } else | |
443 | INIT_LIST_HEAD(card->ip_tbd_list); | |
444 | ||
445 | while (!list_empty(tbd_list)) { | |
446 | todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry); | |
447 | list_del(&todo->entry); | |
448 | if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) { | |
449 | __qeth_l3_delete_all_mc(card, &flags); | |
450 | kfree(todo); | |
451 | continue; | |
452 | } | |
453 | rc = __qeth_l3_ref_ip_on_card(card, todo, &addr); | |
454 | if (rc == 0) { | |
455 | /* nothing to be done; only adjusted refcount */ | |
456 | kfree(todo); | |
457 | } else if (rc == 1) { | |
458 | /* new entry to be added to on-card list */ | |
459 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
460 | rc = qeth_l3_register_addr_entry(card, todo); | |
461 | spin_lock_irqsave(&card->ip_lock, flags); | |
3caa4af8 | 462 | if (!rc || (rc == IPA_RC_LAN_OFFLINE)) |
4a71df50 FB |
463 | list_add_tail(&todo->entry, &card->ip_list); |
464 | else | |
465 | kfree(todo); | |
466 | } else if (rc == -1) { | |
467 | /* on-card entry to be removed */ | |
468 | list_del_init(&addr->entry); | |
469 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
470 | rc = qeth_l3_deregister_addr_entry(card, addr); | |
471 | spin_lock_irqsave(&card->ip_lock, flags); | |
2d921c32 | 472 | if (!rc || (rc == IPA_RC_PRIMARY_ALREADY_DEFINED)) |
4a71df50 FB |
473 | kfree(addr); |
474 | else | |
475 | list_add_tail(&addr->entry, &card->ip_list); | |
476 | kfree(todo); | |
477 | } | |
478 | } | |
479 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
480 | kfree(tbd_list); | |
481 | } | |
482 | ||
483 | static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean, | |
484 | int recover) | |
485 | { | |
486 | struct qeth_ipaddr *addr, *tmp; | |
487 | unsigned long flags; | |
488 | ||
d11ba0c4 | 489 | QETH_DBF_TEXT(TRACE, 4, "clearip"); |
4a71df50 FB |
490 | spin_lock_irqsave(&card->ip_lock, flags); |
491 | /* clear todo list */ | |
492 | list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) { | |
493 | list_del(&addr->entry); | |
494 | kfree(addr); | |
495 | } | |
496 | ||
497 | while (!list_empty(&card->ip_list)) { | |
498 | addr = list_entry(card->ip_list.next, | |
499 | struct qeth_ipaddr, entry); | |
500 | list_del_init(&addr->entry); | |
501 | if (clean) { | |
502 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
503 | qeth_l3_deregister_addr_entry(card, addr); | |
504 | spin_lock_irqsave(&card->ip_lock, flags); | |
505 | } | |
506 | if (!recover || addr->is_multicast) { | |
507 | kfree(addr); | |
508 | continue; | |
509 | } | |
510 | list_add_tail(&addr->entry, card->ip_tbd_list); | |
511 | } | |
512 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
513 | } | |
514 | ||
515 | static int qeth_l3_address_exists_in_list(struct list_head *list, | |
516 | struct qeth_ipaddr *addr, int same_type) | |
517 | { | |
518 | struct qeth_ipaddr *tmp; | |
519 | ||
520 | list_for_each_entry(tmp, list, entry) { | |
521 | if ((tmp->proto == QETH_PROT_IPV4) && | |
522 | (addr->proto == QETH_PROT_IPV4) && | |
523 | ((same_type && (tmp->type == addr->type)) || | |
524 | (!same_type && (tmp->type != addr->type))) && | |
525 | (tmp->u.a4.addr == addr->u.a4.addr)) | |
526 | return 1; | |
527 | ||
528 | if ((tmp->proto == QETH_PROT_IPV6) && | |
529 | (addr->proto == QETH_PROT_IPV6) && | |
530 | ((same_type && (tmp->type == addr->type)) || | |
531 | (!same_type && (tmp->type != addr->type))) && | |
532 | (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr, | |
533 | sizeof(struct in6_addr)) == 0)) | |
534 | return 1; | |
535 | ||
536 | } | |
537 | return 0; | |
538 | } | |
539 | ||
540 | static int qeth_l3_send_setdelmc(struct qeth_card *card, | |
541 | struct qeth_ipaddr *addr, int ipacmd) | |
542 | { | |
543 | int rc; | |
544 | struct qeth_cmd_buffer *iob; | |
545 | struct qeth_ipa_cmd *cmd; | |
546 | ||
d11ba0c4 | 547 | QETH_DBF_TEXT(TRACE, 4, "setdelmc"); |
4a71df50 FB |
548 | |
549 | iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); | |
550 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
551 | memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN); | |
552 | if (addr->proto == QETH_PROT_IPV6) | |
553 | memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr, | |
554 | sizeof(struct in6_addr)); | |
555 | else | |
556 | memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4); | |
557 | ||
558 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
559 | ||
560 | return rc; | |
561 | } | |
562 | ||
563 | static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len) | |
564 | { | |
565 | int i, j; | |
566 | for (i = 0; i < 16; i++) { | |
567 | j = (len) - (i * 8); | |
568 | if (j >= 8) | |
569 | netmask[i] = 0xff; | |
570 | else if (j > 0) | |
571 | netmask[i] = (u8)(0xFF00 >> j); | |
572 | else | |
573 | netmask[i] = 0; | |
574 | } | |
575 | } | |
576 | ||
577 | static int qeth_l3_send_setdelip(struct qeth_card *card, | |
578 | struct qeth_ipaddr *addr, int ipacmd, unsigned int flags) | |
579 | { | |
580 | int rc; | |
581 | struct qeth_cmd_buffer *iob; | |
582 | struct qeth_ipa_cmd *cmd; | |
583 | __u8 netmask[16]; | |
584 | ||
d11ba0c4 PT |
585 | QETH_DBF_TEXT(TRACE, 4, "setdelip"); |
586 | QETH_DBF_TEXT_(TRACE, 4, "flags%02X", flags); | |
4a71df50 FB |
587 | |
588 | iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); | |
589 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
590 | if (addr->proto == QETH_PROT_IPV6) { | |
591 | memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr, | |
592 | sizeof(struct in6_addr)); | |
593 | qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen); | |
594 | memcpy(cmd->data.setdelip6.mask, netmask, | |
595 | sizeof(struct in6_addr)); | |
596 | cmd->data.setdelip6.flags = flags; | |
597 | } else { | |
598 | memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4); | |
599 | memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4); | |
600 | cmd->data.setdelip4.flags = flags; | |
601 | } | |
602 | ||
603 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
604 | ||
605 | return rc; | |
606 | } | |
607 | ||
608 | static int qeth_l3_send_setrouting(struct qeth_card *card, | |
609 | enum qeth_routing_types type, enum qeth_prot_versions prot) | |
610 | { | |
611 | int rc; | |
612 | struct qeth_ipa_cmd *cmd; | |
613 | struct qeth_cmd_buffer *iob; | |
614 | ||
d11ba0c4 | 615 | QETH_DBF_TEXT(TRACE, 4, "setroutg"); |
4a71df50 FB |
616 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot); |
617 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
618 | cmd->data.setrtg.type = (type); | |
619 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
620 | ||
621 | return rc; | |
622 | } | |
623 | ||
624 | static void qeth_l3_correct_routing_type(struct qeth_card *card, | |
625 | enum qeth_routing_types *type, enum qeth_prot_versions prot) | |
626 | { | |
627 | if (card->info.type == QETH_CARD_TYPE_IQD) { | |
628 | switch (*type) { | |
629 | case NO_ROUTER: | |
630 | case PRIMARY_CONNECTOR: | |
631 | case SECONDARY_CONNECTOR: | |
632 | case MULTICAST_ROUTER: | |
633 | return; | |
634 | default: | |
635 | goto out_inval; | |
636 | } | |
637 | } else { | |
638 | switch (*type) { | |
639 | case NO_ROUTER: | |
640 | case PRIMARY_ROUTER: | |
641 | case SECONDARY_ROUTER: | |
642 | return; | |
643 | case MULTICAST_ROUTER: | |
644 | if (qeth_is_ipafunc_supported(card, prot, | |
645 | IPA_OSA_MC_ROUTER)) | |
646 | return; | |
647 | default: | |
648 | goto out_inval; | |
649 | } | |
650 | } | |
651 | out_inval: | |
4a71df50 FB |
652 | *type = NO_ROUTER; |
653 | } | |
654 | ||
655 | int qeth_l3_setrouting_v4(struct qeth_card *card) | |
656 | { | |
657 | int rc; | |
658 | ||
d11ba0c4 | 659 | QETH_DBF_TEXT(TRACE, 3, "setrtg4"); |
4a71df50 FB |
660 | |
661 | qeth_l3_correct_routing_type(card, &card->options.route4.type, | |
662 | QETH_PROT_IPV4); | |
663 | ||
664 | rc = qeth_l3_send_setrouting(card, card->options.route4.type, | |
665 | QETH_PROT_IPV4); | |
666 | if (rc) { | |
667 | card->options.route4.type = NO_ROUTER; | |
14cc21b6 FB |
668 | QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type" |
669 | " on %s. Type set to 'no router'.\n", rc, | |
670 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
671 | } |
672 | return rc; | |
673 | } | |
674 | ||
675 | int qeth_l3_setrouting_v6(struct qeth_card *card) | |
676 | { | |
677 | int rc = 0; | |
678 | ||
d11ba0c4 | 679 | QETH_DBF_TEXT(TRACE, 3, "setrtg6"); |
4a71df50 FB |
680 | #ifdef CONFIG_QETH_IPV6 |
681 | ||
682 | if (!qeth_is_supported(card, IPA_IPV6)) | |
683 | return 0; | |
684 | qeth_l3_correct_routing_type(card, &card->options.route6.type, | |
685 | QETH_PROT_IPV6); | |
686 | ||
687 | rc = qeth_l3_send_setrouting(card, card->options.route6.type, | |
688 | QETH_PROT_IPV6); | |
689 | if (rc) { | |
690 | card->options.route6.type = NO_ROUTER; | |
14cc21b6 FB |
691 | QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type" |
692 | " on %s. Type set to 'no router'.\n", rc, | |
693 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
694 | } |
695 | #endif | |
696 | return rc; | |
697 | } | |
698 | ||
699 | /* | |
700 | * IP address takeover related functions | |
701 | */ | |
702 | static void qeth_l3_clear_ipato_list(struct qeth_card *card) | |
703 | { | |
704 | ||
705 | struct qeth_ipato_entry *ipatoe, *tmp; | |
706 | unsigned long flags; | |
707 | ||
708 | spin_lock_irqsave(&card->ip_lock, flags); | |
709 | list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) { | |
710 | list_del(&ipatoe->entry); | |
711 | kfree(ipatoe); | |
712 | } | |
713 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
714 | } | |
715 | ||
716 | int qeth_l3_add_ipato_entry(struct qeth_card *card, | |
717 | struct qeth_ipato_entry *new) | |
718 | { | |
719 | struct qeth_ipato_entry *ipatoe; | |
720 | unsigned long flags; | |
721 | int rc = 0; | |
722 | ||
d11ba0c4 | 723 | QETH_DBF_TEXT(TRACE, 2, "addipato"); |
4a71df50 FB |
724 | spin_lock_irqsave(&card->ip_lock, flags); |
725 | list_for_each_entry(ipatoe, &card->ipato.entries, entry) { | |
726 | if (ipatoe->proto != new->proto) | |
727 | continue; | |
728 | if (!memcmp(ipatoe->addr, new->addr, | |
729 | (ipatoe->proto == QETH_PROT_IPV4)? 4:16) && | |
730 | (ipatoe->mask_bits == new->mask_bits)) { | |
4a71df50 FB |
731 | rc = -EEXIST; |
732 | break; | |
733 | } | |
734 | } | |
735 | if (!rc) | |
736 | list_add_tail(&new->entry, &card->ipato.entries); | |
737 | ||
738 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
739 | return rc; | |
740 | } | |
741 | ||
742 | void qeth_l3_del_ipato_entry(struct qeth_card *card, | |
743 | enum qeth_prot_versions proto, u8 *addr, int mask_bits) | |
744 | { | |
745 | struct qeth_ipato_entry *ipatoe, *tmp; | |
746 | unsigned long flags; | |
747 | ||
d11ba0c4 | 748 | QETH_DBF_TEXT(TRACE, 2, "delipato"); |
4a71df50 FB |
749 | spin_lock_irqsave(&card->ip_lock, flags); |
750 | list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) { | |
751 | if (ipatoe->proto != proto) | |
752 | continue; | |
753 | if (!memcmp(ipatoe->addr, addr, | |
754 | (proto == QETH_PROT_IPV4)? 4:16) && | |
755 | (ipatoe->mask_bits == mask_bits)) { | |
756 | list_del(&ipatoe->entry); | |
757 | kfree(ipatoe); | |
758 | } | |
759 | } | |
760 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
761 | } | |
762 | ||
763 | /* | |
764 | * VIPA related functions | |
765 | */ | |
766 | int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto, | |
767 | const u8 *addr) | |
768 | { | |
769 | struct qeth_ipaddr *ipaddr; | |
770 | unsigned long flags; | |
771 | int rc = 0; | |
772 | ||
773 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
774 | if (ipaddr) { | |
775 | if (proto == QETH_PROT_IPV4) { | |
d11ba0c4 | 776 | QETH_DBF_TEXT(TRACE, 2, "addvipa4"); |
4a71df50 FB |
777 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
778 | ipaddr->u.a4.mask = 0; | |
779 | } else if (proto == QETH_PROT_IPV6) { | |
d11ba0c4 | 780 | QETH_DBF_TEXT(TRACE, 2, "addvipa6"); |
4a71df50 FB |
781 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
782 | ipaddr->u.a6.pfxlen = 0; | |
783 | } | |
784 | ipaddr->type = QETH_IP_TYPE_VIPA; | |
785 | ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG; | |
786 | ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG; | |
787 | } else | |
788 | return -ENOMEM; | |
789 | spin_lock_irqsave(&card->ip_lock, flags); | |
790 | if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) || | |
791 | qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0)) | |
792 | rc = -EEXIST; | |
793 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
794 | if (rc) { | |
4a71df50 FB |
795 | return rc; |
796 | } | |
797 | if (!qeth_l3_add_ip(card, ipaddr)) | |
798 | kfree(ipaddr); | |
799 | qeth_l3_set_ip_addr_list(card); | |
800 | return rc; | |
801 | } | |
802 | ||
803 | void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto, | |
804 | const u8 *addr) | |
805 | { | |
806 | struct qeth_ipaddr *ipaddr; | |
807 | ||
808 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
809 | if (ipaddr) { | |
810 | if (proto == QETH_PROT_IPV4) { | |
d11ba0c4 | 811 | QETH_DBF_TEXT(TRACE, 2, "delvipa4"); |
4a71df50 FB |
812 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
813 | ipaddr->u.a4.mask = 0; | |
814 | } else if (proto == QETH_PROT_IPV6) { | |
d11ba0c4 | 815 | QETH_DBF_TEXT(TRACE, 2, "delvipa6"); |
4a71df50 FB |
816 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
817 | ipaddr->u.a6.pfxlen = 0; | |
818 | } | |
819 | ipaddr->type = QETH_IP_TYPE_VIPA; | |
820 | } else | |
821 | return; | |
822 | if (!qeth_l3_delete_ip(card, ipaddr)) | |
823 | kfree(ipaddr); | |
824 | qeth_l3_set_ip_addr_list(card); | |
825 | } | |
826 | ||
827 | /* | |
828 | * proxy ARP related functions | |
829 | */ | |
830 | int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto, | |
831 | const u8 *addr) | |
832 | { | |
833 | struct qeth_ipaddr *ipaddr; | |
834 | unsigned long flags; | |
835 | int rc = 0; | |
836 | ||
837 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
838 | if (ipaddr) { | |
839 | if (proto == QETH_PROT_IPV4) { | |
d11ba0c4 | 840 | QETH_DBF_TEXT(TRACE, 2, "addrxip4"); |
4a71df50 FB |
841 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
842 | ipaddr->u.a4.mask = 0; | |
843 | } else if (proto == QETH_PROT_IPV6) { | |
d11ba0c4 | 844 | QETH_DBF_TEXT(TRACE, 2, "addrxip6"); |
4a71df50 FB |
845 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
846 | ipaddr->u.a6.pfxlen = 0; | |
847 | } | |
848 | ipaddr->type = QETH_IP_TYPE_RXIP; | |
849 | ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG; | |
850 | ipaddr->del_flags = 0; | |
851 | } else | |
852 | return -ENOMEM; | |
853 | spin_lock_irqsave(&card->ip_lock, flags); | |
854 | if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) || | |
855 | qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0)) | |
856 | rc = -EEXIST; | |
857 | spin_unlock_irqrestore(&card->ip_lock, flags); | |
858 | if (rc) { | |
4a71df50 FB |
859 | return rc; |
860 | } | |
861 | if (!qeth_l3_add_ip(card, ipaddr)) | |
862 | kfree(ipaddr); | |
863 | qeth_l3_set_ip_addr_list(card); | |
864 | return 0; | |
865 | } | |
866 | ||
867 | void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto, | |
868 | const u8 *addr) | |
869 | { | |
870 | struct qeth_ipaddr *ipaddr; | |
871 | ||
872 | ipaddr = qeth_l3_get_addr_buffer(proto); | |
873 | if (ipaddr) { | |
874 | if (proto == QETH_PROT_IPV4) { | |
d11ba0c4 | 875 | QETH_DBF_TEXT(TRACE, 2, "addrxip4"); |
4a71df50 FB |
876 | memcpy(&ipaddr->u.a4.addr, addr, 4); |
877 | ipaddr->u.a4.mask = 0; | |
878 | } else if (proto == QETH_PROT_IPV6) { | |
d11ba0c4 | 879 | QETH_DBF_TEXT(TRACE, 2, "addrxip6"); |
4a71df50 FB |
880 | memcpy(&ipaddr->u.a6.addr, addr, 16); |
881 | ipaddr->u.a6.pfxlen = 0; | |
882 | } | |
883 | ipaddr->type = QETH_IP_TYPE_RXIP; | |
884 | } else | |
885 | return; | |
886 | if (!qeth_l3_delete_ip(card, ipaddr)) | |
887 | kfree(ipaddr); | |
888 | qeth_l3_set_ip_addr_list(card); | |
889 | } | |
890 | ||
891 | static int qeth_l3_register_addr_entry(struct qeth_card *card, | |
892 | struct qeth_ipaddr *addr) | |
893 | { | |
894 | char buf[50]; | |
895 | int rc = 0; | |
896 | int cnt = 3; | |
897 | ||
898 | if (addr->proto == QETH_PROT_IPV4) { | |
d11ba0c4 PT |
899 | QETH_DBF_TEXT(TRACE, 2, "setaddr4"); |
900 | QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int)); | |
4a71df50 | 901 | } else if (addr->proto == QETH_PROT_IPV6) { |
d11ba0c4 PT |
902 | QETH_DBF_TEXT(TRACE, 2, "setaddr6"); |
903 | QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8); | |
904 | QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8); | |
4a71df50 | 905 | } else { |
d11ba0c4 PT |
906 | QETH_DBF_TEXT(TRACE, 2, "setaddr?"); |
907 | QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr)); | |
4a71df50 FB |
908 | } |
909 | do { | |
910 | if (addr->is_multicast) | |
911 | rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM); | |
912 | else | |
913 | rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP, | |
914 | addr->set_flags); | |
915 | if (rc) | |
d11ba0c4 | 916 | QETH_DBF_TEXT(TRACE, 2, "failed"); |
4a71df50 FB |
917 | } while ((--cnt > 0) && rc); |
918 | if (rc) { | |
d11ba0c4 | 919 | QETH_DBF_TEXT(TRACE, 2, "FAILED"); |
4a71df50 | 920 | qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf); |
74eacdb9 FB |
921 | dev_warn(&card->gdev->dev, |
922 | "Registering IP address %s failed\n", buf); | |
4a71df50 FB |
923 | } |
924 | return rc; | |
925 | } | |
926 | ||
927 | static int qeth_l3_deregister_addr_entry(struct qeth_card *card, | |
928 | struct qeth_ipaddr *addr) | |
929 | { | |
930 | int rc = 0; | |
931 | ||
932 | if (addr->proto == QETH_PROT_IPV4) { | |
d11ba0c4 PT |
933 | QETH_DBF_TEXT(TRACE, 2, "deladdr4"); |
934 | QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int)); | |
4a71df50 | 935 | } else if (addr->proto == QETH_PROT_IPV6) { |
d11ba0c4 PT |
936 | QETH_DBF_TEXT(TRACE, 2, "deladdr6"); |
937 | QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8); | |
938 | QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8); | |
4a71df50 | 939 | } else { |
d11ba0c4 PT |
940 | QETH_DBF_TEXT(TRACE, 2, "deladdr?"); |
941 | QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr)); | |
4a71df50 FB |
942 | } |
943 | if (addr->is_multicast) | |
944 | rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM); | |
945 | else | |
946 | rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP, | |
947 | addr->del_flags); | |
c4cef07c | 948 | if (rc) |
d11ba0c4 | 949 | QETH_DBF_TEXT(TRACE, 2, "failed"); |
4a71df50 FB |
950 | |
951 | return rc; | |
952 | } | |
953 | ||
954 | static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type) | |
955 | { | |
956 | if (cast_type == RTN_MULTICAST) | |
957 | return QETH_CAST_MULTICAST; | |
958 | if (cast_type == RTN_BROADCAST) | |
959 | return QETH_CAST_BROADCAST; | |
960 | return QETH_CAST_UNICAST; | |
961 | } | |
962 | ||
963 | static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type) | |
964 | { | |
965 | u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6; | |
966 | if (cast_type == RTN_MULTICAST) | |
967 | return ct | QETH_CAST_MULTICAST; | |
968 | if (cast_type == RTN_ANYCAST) | |
969 | return ct | QETH_CAST_ANYCAST; | |
970 | if (cast_type == RTN_BROADCAST) | |
971 | return ct | QETH_CAST_BROADCAST; | |
972 | return ct | QETH_CAST_UNICAST; | |
973 | } | |
974 | ||
975 | static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command, | |
976 | __u32 mode) | |
977 | { | |
978 | int rc; | |
979 | struct qeth_cmd_buffer *iob; | |
980 | struct qeth_ipa_cmd *cmd; | |
981 | ||
d11ba0c4 | 982 | QETH_DBF_TEXT(TRACE, 4, "adpmode"); |
4a71df50 FB |
983 | |
984 | iob = qeth_get_adapter_cmd(card, command, | |
985 | sizeof(struct qeth_ipacmd_setadpparms)); | |
986 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
987 | cmd->data.setadapterparms.data.mode = mode; | |
988 | rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb, | |
989 | NULL); | |
990 | return rc; | |
991 | } | |
992 | ||
993 | static int qeth_l3_setadapter_hstr(struct qeth_card *card) | |
994 | { | |
995 | int rc; | |
996 | ||
d11ba0c4 | 997 | QETH_DBF_TEXT(TRACE, 4, "adphstr"); |
4a71df50 FB |
998 | |
999 | if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) { | |
1000 | rc = qeth_l3_send_setadp_mode(card, | |
1001 | IPA_SETADP_SET_BROADCAST_MODE, | |
1002 | card->options.broadcast_mode); | |
1003 | if (rc) | |
14cc21b6 | 1004 | QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on " |
4a71df50 FB |
1005 | "device %s: x%x\n", |
1006 | CARD_BUS_ID(card), rc); | |
1007 | rc = qeth_l3_send_setadp_mode(card, | |
1008 | IPA_SETADP_ALTER_MAC_ADDRESS, | |
1009 | card->options.macaddr_mode); | |
1010 | if (rc) | |
14cc21b6 | 1011 | QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on " |
4a71df50 FB |
1012 | "device %s: x%x\n", CARD_BUS_ID(card), rc); |
1013 | return rc; | |
1014 | } | |
1015 | if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL) | |
14cc21b6 | 1016 | QETH_DBF_MESSAGE(2, "set adapter parameters not available " |
4a71df50 FB |
1017 | "to set broadcast mode, using ALLRINGS " |
1018 | "on device %s:\n", CARD_BUS_ID(card)); | |
1019 | if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL) | |
14cc21b6 | 1020 | QETH_DBF_MESSAGE(2, "set adapter parameters not available " |
4a71df50 FB |
1021 | "to set macaddr mode, using NONCANONICAL " |
1022 | "on device %s:\n", CARD_BUS_ID(card)); | |
1023 | return 0; | |
1024 | } | |
1025 | ||
1026 | static int qeth_l3_setadapter_parms(struct qeth_card *card) | |
1027 | { | |
1028 | int rc; | |
1029 | ||
d11ba0c4 | 1030 | QETH_DBF_TEXT(SETUP, 2, "setadprm"); |
4a71df50 FB |
1031 | |
1032 | if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) { | |
74eacdb9 FB |
1033 | dev_info(&card->gdev->dev, |
1034 | "set adapter parameters not supported.\n"); | |
d11ba0c4 | 1035 | QETH_DBF_TEXT(SETUP, 2, " notsupp"); |
4a71df50 FB |
1036 | return 0; |
1037 | } | |
1038 | rc = qeth_query_setadapterparms(card); | |
1039 | if (rc) { | |
74eacdb9 | 1040 | QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: " |
7f6d95e7 | 1041 | "0x%x\n", dev_name(&card->gdev->dev), rc); |
4a71df50 FB |
1042 | return rc; |
1043 | } | |
1044 | if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) { | |
1045 | rc = qeth_setadpparms_change_macaddr(card); | |
1046 | if (rc) | |
74eacdb9 | 1047 | dev_warn(&card->gdev->dev, "Reading the adapter MAC" |
6ea2fde1 | 1048 | " address failed\n"); |
4a71df50 FB |
1049 | } |
1050 | ||
1051 | if ((card->info.link_type == QETH_LINK_TYPE_HSTR) || | |
1052 | (card->info.link_type == QETH_LINK_TYPE_LANE_TR)) | |
1053 | rc = qeth_l3_setadapter_hstr(card); | |
1054 | ||
1055 | return rc; | |
1056 | } | |
1057 | ||
1058 | static int qeth_l3_default_setassparms_cb(struct qeth_card *card, | |
1059 | struct qeth_reply *reply, unsigned long data) | |
1060 | { | |
1061 | struct qeth_ipa_cmd *cmd; | |
1062 | ||
d11ba0c4 | 1063 | QETH_DBF_TEXT(TRACE, 4, "defadpcb"); |
4a71df50 FB |
1064 | |
1065 | cmd = (struct qeth_ipa_cmd *) data; | |
1066 | if (cmd->hdr.return_code == 0) { | |
1067 | cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; | |
1068 | if (cmd->hdr.prot_version == QETH_PROT_IPV4) | |
1069 | card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; | |
1070 | if (cmd->hdr.prot_version == QETH_PROT_IPV6) | |
1071 | card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; | |
1072 | } | |
1073 | if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM && | |
1074 | cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { | |
1075 | card->info.csum_mask = cmd->data.setassparms.data.flags_32bit; | |
d11ba0c4 | 1076 | QETH_DBF_TEXT_(TRACE, 3, "csum:%d", card->info.csum_mask); |
4a71df50 FB |
1077 | } |
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd( | |
1082 | struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code, | |
1083 | __u16 len, enum qeth_prot_versions prot) | |
1084 | { | |
1085 | struct qeth_cmd_buffer *iob; | |
1086 | struct qeth_ipa_cmd *cmd; | |
1087 | ||
d11ba0c4 | 1088 | QETH_DBF_TEXT(TRACE, 4, "getasscm"); |
4a71df50 FB |
1089 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); |
1090 | ||
1091 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
1092 | cmd->data.setassparms.hdr.assist_no = ipa_func; | |
1093 | cmd->data.setassparms.hdr.length = 8 + len; | |
1094 | cmd->data.setassparms.hdr.command_code = cmd_code; | |
1095 | cmd->data.setassparms.hdr.return_code = 0; | |
1096 | cmd->data.setassparms.hdr.seq_no = 0; | |
1097 | ||
1098 | return iob; | |
1099 | } | |
1100 | ||
1101 | static int qeth_l3_send_setassparms(struct qeth_card *card, | |
1102 | struct qeth_cmd_buffer *iob, __u16 len, long data, | |
1103 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
1104 | unsigned long), | |
1105 | void *reply_param) | |
1106 | { | |
1107 | int rc; | |
1108 | struct qeth_ipa_cmd *cmd; | |
1109 | ||
d11ba0c4 | 1110 | QETH_DBF_TEXT(TRACE, 4, "sendassp"); |
4a71df50 FB |
1111 | |
1112 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
1113 | if (len <= sizeof(__u32)) | |
1114 | cmd->data.setassparms.data.flags_32bit = (__u32) data; | |
1115 | else /* (len > sizeof(__u32)) */ | |
1116 | memcpy(&cmd->data.setassparms.data, (void *) data, len); | |
1117 | ||
1118 | rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param); | |
1119 | return rc; | |
1120 | } | |
1121 | ||
1122 | #ifdef CONFIG_QETH_IPV6 | |
1123 | static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card, | |
1124 | enum qeth_ipa_funcs ipa_func, __u16 cmd_code) | |
1125 | { | |
1126 | int rc; | |
1127 | struct qeth_cmd_buffer *iob; | |
1128 | ||
d11ba0c4 | 1129 | QETH_DBF_TEXT(TRACE, 4, "simassp6"); |
4a71df50 FB |
1130 | iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code, |
1131 | 0, QETH_PROT_IPV6); | |
1132 | rc = qeth_l3_send_setassparms(card, iob, 0, 0, | |
1133 | qeth_l3_default_setassparms_cb, NULL); | |
1134 | return rc; | |
1135 | } | |
1136 | #endif | |
1137 | ||
1138 | static int qeth_l3_send_simple_setassparms(struct qeth_card *card, | |
1139 | enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data) | |
1140 | { | |
1141 | int rc; | |
1142 | int length = 0; | |
1143 | struct qeth_cmd_buffer *iob; | |
1144 | ||
d11ba0c4 | 1145 | QETH_DBF_TEXT(TRACE, 4, "simassp4"); |
4a71df50 FB |
1146 | if (data) |
1147 | length = sizeof(__u32); | |
1148 | iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code, | |
1149 | length, QETH_PROT_IPV4); | |
1150 | rc = qeth_l3_send_setassparms(card, iob, length, data, | |
1151 | qeth_l3_default_setassparms_cb, NULL); | |
1152 | return rc; | |
1153 | } | |
1154 | ||
1155 | static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card) | |
1156 | { | |
1157 | int rc; | |
1158 | ||
d11ba0c4 | 1159 | QETH_DBF_TEXT(TRACE, 3, "ipaarp"); |
4a71df50 FB |
1160 | |
1161 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
74eacdb9 FB |
1162 | dev_info(&card->gdev->dev, |
1163 | "ARP processing not supported on %s!\n", | |
1164 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1165 | return 0; |
1166 | } | |
1167 | rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING, | |
1168 | IPA_CMD_ASS_START, 0); | |
1169 | if (rc) { | |
74eacdb9 FB |
1170 | dev_warn(&card->gdev->dev, |
1171 | "Starting ARP processing support for %s failed\n", | |
1172 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1173 | } |
1174 | return rc; | |
1175 | } | |
1176 | ||
1177 | static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card) | |
1178 | { | |
1179 | int rc; | |
1180 | ||
d11ba0c4 | 1181 | QETH_DBF_TEXT(TRACE, 3, "ipaipfrg"); |
4a71df50 FB |
1182 | |
1183 | if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) { | |
74eacdb9 FB |
1184 | dev_info(&card->gdev->dev, |
1185 | "Hardware IP fragmentation not supported on %s\n", | |
1186 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1187 | return -EOPNOTSUPP; |
1188 | } | |
1189 | ||
1190 | rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION, | |
1191 | IPA_CMD_ASS_START, 0); | |
1192 | if (rc) { | |
74eacdb9 FB |
1193 | dev_warn(&card->gdev->dev, |
1194 | "Starting IP fragmentation support for %s failed\n", | |
1195 | QETH_CARD_IFNAME(card)); | |
4a71df50 | 1196 | } else |
74eacdb9 FB |
1197 | dev_info(&card->gdev->dev, |
1198 | "Hardware IP fragmentation enabled \n"); | |
4a71df50 FB |
1199 | return rc; |
1200 | } | |
1201 | ||
1202 | static int qeth_l3_start_ipa_source_mac(struct qeth_card *card) | |
1203 | { | |
1204 | int rc; | |
1205 | ||
d11ba0c4 | 1206 | QETH_DBF_TEXT(TRACE, 3, "stsrcmac"); |
4a71df50 | 1207 | |
4a71df50 | 1208 | if (!qeth_is_supported(card, IPA_SOURCE_MAC)) { |
74eacdb9 | 1209 | dev_info(&card->gdev->dev, |
fe94e2e0 | 1210 | "Inbound source MAC-address not supported on %s\n", |
74eacdb9 | 1211 | QETH_CARD_IFNAME(card)); |
4a71df50 FB |
1212 | return -EOPNOTSUPP; |
1213 | } | |
1214 | ||
1215 | rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC, | |
1216 | IPA_CMD_ASS_START, 0); | |
1217 | if (rc) | |
74eacdb9 | 1218 | dev_warn(&card->gdev->dev, |
fe94e2e0 | 1219 | "Starting source MAC-address support for %s failed\n", |
74eacdb9 | 1220 | QETH_CARD_IFNAME(card)); |
4a71df50 FB |
1221 | return rc; |
1222 | } | |
1223 | ||
1224 | static int qeth_l3_start_ipa_vlan(struct qeth_card *card) | |
1225 | { | |
1226 | int rc = 0; | |
1227 | ||
d11ba0c4 | 1228 | QETH_DBF_TEXT(TRACE, 3, "strtvlan"); |
4a71df50 FB |
1229 | |
1230 | if (!qeth_is_supported(card, IPA_FULL_VLAN)) { | |
74eacdb9 FB |
1231 | dev_info(&card->gdev->dev, |
1232 | "VLAN not supported on %s\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1233 | return -EOPNOTSUPP; |
1234 | } | |
1235 | ||
1236 | rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO, | |
1237 | IPA_CMD_ASS_START, 0); | |
1238 | if (rc) { | |
74eacdb9 FB |
1239 | dev_warn(&card->gdev->dev, |
1240 | "Starting VLAN support for %s failed\n", | |
1241 | QETH_CARD_IFNAME(card)); | |
4a71df50 | 1242 | } else { |
74eacdb9 | 1243 | dev_info(&card->gdev->dev, "VLAN enabled\n"); |
4a71df50 FB |
1244 | } |
1245 | return rc; | |
1246 | } | |
1247 | ||
1248 | static int qeth_l3_start_ipa_multicast(struct qeth_card *card) | |
1249 | { | |
1250 | int rc; | |
1251 | ||
d11ba0c4 | 1252 | QETH_DBF_TEXT(TRACE, 3, "stmcast"); |
4a71df50 FB |
1253 | |
1254 | if (!qeth_is_supported(card, IPA_MULTICASTING)) { | |
74eacdb9 FB |
1255 | dev_info(&card->gdev->dev, |
1256 | "Multicast not supported on %s\n", | |
1257 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1258 | return -EOPNOTSUPP; |
1259 | } | |
1260 | ||
1261 | rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING, | |
1262 | IPA_CMD_ASS_START, 0); | |
1263 | if (rc) { | |
74eacdb9 FB |
1264 | dev_warn(&card->gdev->dev, |
1265 | "Starting multicast support for %s failed\n", | |
1266 | QETH_CARD_IFNAME(card)); | |
4a71df50 | 1267 | } else { |
74eacdb9 | 1268 | dev_info(&card->gdev->dev, "Multicast enabled\n"); |
4a71df50 FB |
1269 | card->dev->flags |= IFF_MULTICAST; |
1270 | } | |
1271 | return rc; | |
1272 | } | |
1273 | ||
1274 | static int qeth_l3_query_ipassists_cb(struct qeth_card *card, | |
1275 | struct qeth_reply *reply, unsigned long data) | |
1276 | { | |
1277 | struct qeth_ipa_cmd *cmd; | |
1278 | ||
d11ba0c4 | 1279 | QETH_DBF_TEXT(SETUP, 2, "qipasscb"); |
4a71df50 FB |
1280 | |
1281 | cmd = (struct qeth_ipa_cmd *) data; | |
1282 | if (cmd->hdr.prot_version == QETH_PROT_IPV4) { | |
1283 | card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; | |
1284 | card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; | |
1285 | } else { | |
1286 | card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; | |
1287 | card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; | |
1288 | } | |
d11ba0c4 PT |
1289 | QETH_DBF_TEXT(SETUP, 2, "suppenbl"); |
1290 | QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported); | |
1291 | QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled); | |
4a71df50 FB |
1292 | return 0; |
1293 | } | |
1294 | ||
1295 | static int qeth_l3_query_ipassists(struct qeth_card *card, | |
1296 | enum qeth_prot_versions prot) | |
1297 | { | |
1298 | int rc; | |
1299 | struct qeth_cmd_buffer *iob; | |
1300 | ||
d11ba0c4 | 1301 | QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); |
4a71df50 FB |
1302 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); |
1303 | rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL); | |
1304 | return rc; | |
1305 | } | |
1306 | ||
1307 | #ifdef CONFIG_QETH_IPV6 | |
1308 | static int qeth_l3_softsetup_ipv6(struct qeth_card *card) | |
1309 | { | |
1310 | int rc; | |
1311 | ||
d11ba0c4 | 1312 | QETH_DBF_TEXT(TRACE, 3, "softipv6"); |
4a71df50 FB |
1313 | |
1314 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
1315 | goto out; | |
1316 | ||
1317 | rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6); | |
1318 | if (rc) { | |
74eacdb9 FB |
1319 | dev_err(&card->gdev->dev, |
1320 | "Activating IPv6 support for %s failed\n", | |
1321 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1322 | return rc; |
1323 | } | |
1324 | rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6, | |
1325 | IPA_CMD_ASS_START, 3); | |
1326 | if (rc) { | |
74eacdb9 FB |
1327 | dev_err(&card->gdev->dev, |
1328 | "Activating IPv6 support for %s failed\n", | |
1329 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1330 | return rc; |
1331 | } | |
1332 | rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6, | |
1333 | IPA_CMD_ASS_START); | |
1334 | if (rc) { | |
74eacdb9 FB |
1335 | dev_err(&card->gdev->dev, |
1336 | "Activating IPv6 support for %s failed\n", | |
1337 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1338 | return rc; |
1339 | } | |
1340 | rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU, | |
1341 | IPA_CMD_ASS_START); | |
1342 | if (rc) { | |
74eacdb9 FB |
1343 | dev_warn(&card->gdev->dev, |
1344 | "Enabling the passthrough mode for %s failed\n", | |
1345 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1346 | return rc; |
1347 | } | |
1348 | out: | |
74eacdb9 | 1349 | dev_info(&card->gdev->dev, "IPV6 enabled\n"); |
4a71df50 FB |
1350 | return 0; |
1351 | } | |
1352 | #endif | |
1353 | ||
1354 | static int qeth_l3_start_ipa_ipv6(struct qeth_card *card) | |
1355 | { | |
1356 | int rc = 0; | |
1357 | ||
d11ba0c4 | 1358 | QETH_DBF_TEXT(TRACE, 3, "strtipv6"); |
4a71df50 FB |
1359 | |
1360 | if (!qeth_is_supported(card, IPA_IPV6)) { | |
74eacdb9 FB |
1361 | dev_info(&card->gdev->dev, |
1362 | "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1363 | return 0; |
1364 | } | |
1365 | #ifdef CONFIG_QETH_IPV6 | |
1366 | rc = qeth_l3_softsetup_ipv6(card); | |
1367 | #endif | |
1368 | return rc ; | |
1369 | } | |
1370 | ||
1371 | static int qeth_l3_start_ipa_broadcast(struct qeth_card *card) | |
1372 | { | |
1373 | int rc; | |
1374 | ||
d11ba0c4 | 1375 | QETH_DBF_TEXT(TRACE, 3, "stbrdcst"); |
4a71df50 FB |
1376 | card->info.broadcast_capable = 0; |
1377 | if (!qeth_is_supported(card, IPA_FILTERING)) { | |
74eacdb9 FB |
1378 | dev_info(&card->gdev->dev, |
1379 | "Broadcast not supported on %s\n", | |
1380 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1381 | rc = -EOPNOTSUPP; |
1382 | goto out; | |
1383 | } | |
1384 | rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING, | |
1385 | IPA_CMD_ASS_START, 0); | |
1386 | if (rc) { | |
74eacdb9 FB |
1387 | dev_warn(&card->gdev->dev, "Enabling broadcast filtering for " |
1388 | "%s failed\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1389 | goto out; |
1390 | } | |
1391 | ||
1392 | rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING, | |
1393 | IPA_CMD_ASS_CONFIGURE, 1); | |
1394 | if (rc) { | |
74eacdb9 FB |
1395 | dev_warn(&card->gdev->dev, |
1396 | "Setting up broadcast filtering for %s failed\n", | |
1397 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1398 | goto out; |
1399 | } | |
1400 | card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO; | |
74eacdb9 | 1401 | dev_info(&card->gdev->dev, "Broadcast enabled\n"); |
4a71df50 FB |
1402 | rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING, |
1403 | IPA_CMD_ASS_ENABLE, 1); | |
1404 | if (rc) { | |
74eacdb9 FB |
1405 | dev_warn(&card->gdev->dev, "Setting up broadcast echo " |
1406 | "filtering for %s failed\n", QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1407 | goto out; |
1408 | } | |
1409 | card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO; | |
1410 | out: | |
1411 | if (card->info.broadcast_capable) | |
1412 | card->dev->flags |= IFF_BROADCAST; | |
1413 | else | |
1414 | card->dev->flags &= ~IFF_BROADCAST; | |
1415 | return rc; | |
1416 | } | |
1417 | ||
1418 | static int qeth_l3_send_checksum_command(struct qeth_card *card) | |
1419 | { | |
1420 | int rc; | |
1421 | ||
1422 | rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, | |
1423 | IPA_CMD_ASS_START, 0); | |
1424 | if (rc) { | |
74eacdb9 FB |
1425 | dev_warn(&card->gdev->dev, "Starting HW checksumming for %s " |
1426 | "failed, using SW checksumming\n", | |
1427 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1428 | return rc; |
1429 | } | |
1430 | rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, | |
1431 | IPA_CMD_ASS_ENABLE, | |
1432 | card->info.csum_mask); | |
1433 | if (rc) { | |
74eacdb9 FB |
1434 | dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s " |
1435 | "failed, using SW checksumming\n", | |
1436 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1437 | return rc; |
1438 | } | |
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | static int qeth_l3_start_ipa_checksum(struct qeth_card *card) | |
1443 | { | |
1444 | int rc = 0; | |
1445 | ||
d11ba0c4 | 1446 | QETH_DBF_TEXT(TRACE, 3, "strtcsum"); |
4a71df50 FB |
1447 | |
1448 | if (card->options.checksum_type == NO_CHECKSUMMING) { | |
74eacdb9 FB |
1449 | dev_info(&card->gdev->dev, |
1450 | "Using no checksumming on %s.\n", | |
1451 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1452 | return 0; |
1453 | } | |
1454 | if (card->options.checksum_type == SW_CHECKSUMMING) { | |
74eacdb9 FB |
1455 | dev_info(&card->gdev->dev, |
1456 | "Using SW checksumming on %s.\n", | |
1457 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1458 | return 0; |
1459 | } | |
1460 | if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { | |
74eacdb9 FB |
1461 | dev_info(&card->gdev->dev, |
1462 | "Inbound HW Checksumming not " | |
1463 | "supported on %s,\ncontinuing " | |
1464 | "using Inbound SW Checksumming\n", | |
1465 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1466 | card->options.checksum_type = SW_CHECKSUMMING; |
1467 | return 0; | |
1468 | } | |
1469 | rc = qeth_l3_send_checksum_command(card); | |
1470 | if (!rc) | |
74eacdb9 FB |
1471 | dev_info(&card->gdev->dev, |
1472 | "HW Checksumming (inbound) enabled\n"); | |
4a71df50 FB |
1473 | |
1474 | return rc; | |
1475 | } | |
1476 | ||
1477 | static int qeth_l3_start_ipa_tso(struct qeth_card *card) | |
1478 | { | |
1479 | int rc; | |
1480 | ||
d11ba0c4 | 1481 | QETH_DBF_TEXT(TRACE, 3, "sttso"); |
4a71df50 FB |
1482 | |
1483 | if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) { | |
74eacdb9 FB |
1484 | dev_info(&card->gdev->dev, |
1485 | "Outbound TSO not supported on %s\n", | |
1486 | QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
1487 | rc = -EOPNOTSUPP; |
1488 | } else { | |
1489 | rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO, | |
1490 | IPA_CMD_ASS_START, 0); | |
1491 | if (rc) | |
74eacdb9 FB |
1492 | dev_warn(&card->gdev->dev, "Starting outbound TCP " |
1493 | "segmentation offload for %s failed\n", | |
1494 | QETH_CARD_IFNAME(card)); | |
4a71df50 | 1495 | else |
74eacdb9 FB |
1496 | dev_info(&card->gdev->dev, |
1497 | "Outbound TSO enabled\n"); | |
4a71df50 FB |
1498 | } |
1499 | if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) { | |
1500 | card->options.large_send = QETH_LARGE_SEND_NO; | |
1501 | card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); | |
1502 | } | |
1503 | return rc; | |
1504 | } | |
1505 | ||
1506 | static int qeth_l3_start_ipassists(struct qeth_card *card) | |
1507 | { | |
d11ba0c4 | 1508 | QETH_DBF_TEXT(TRACE, 3, "strtipas"); |
4a71df50 FB |
1509 | qeth_l3_start_ipa_arp_processing(card); /* go on*/ |
1510 | qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/ | |
1511 | qeth_l3_start_ipa_source_mac(card); /* go on*/ | |
1512 | qeth_l3_start_ipa_vlan(card); /* go on*/ | |
1513 | qeth_l3_start_ipa_multicast(card); /* go on*/ | |
1514 | qeth_l3_start_ipa_ipv6(card); /* go on*/ | |
1515 | qeth_l3_start_ipa_broadcast(card); /* go on*/ | |
1516 | qeth_l3_start_ipa_checksum(card); /* go on*/ | |
1517 | qeth_l3_start_ipa_tso(card); /* go on*/ | |
1518 | return 0; | |
1519 | } | |
1520 | ||
1521 | static int qeth_l3_put_unique_id(struct qeth_card *card) | |
1522 | { | |
1523 | ||
1524 | int rc = 0; | |
1525 | struct qeth_cmd_buffer *iob; | |
1526 | struct qeth_ipa_cmd *cmd; | |
1527 | ||
d11ba0c4 | 1528 | QETH_DBF_TEXT(TRACE, 2, "puniqeid"); |
4a71df50 FB |
1529 | |
1530 | if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) == | |
1531 | UNIQUE_ID_NOT_BY_CARD) | |
1532 | return -1; | |
1533 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR, | |
1534 | QETH_PROT_IPV6); | |
1535 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
1536 | *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = | |
1537 | card->info.unique_id; | |
1538 | memcpy(&cmd->data.create_destroy_addr.unique_id[0], | |
1539 | card->dev->dev_addr, OSA_ADDR_LEN); | |
1540 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); | |
1541 | return rc; | |
1542 | } | |
1543 | ||
1544 | static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card, | |
1545 | struct qeth_reply *reply, unsigned long data) | |
1546 | { | |
1547 | struct qeth_ipa_cmd *cmd; | |
1548 | ||
1549 | cmd = (struct qeth_ipa_cmd *) data; | |
1550 | if (cmd->hdr.return_code == 0) | |
1551 | memcpy(card->dev->dev_addr, | |
1552 | cmd->data.create_destroy_addr.unique_id, ETH_ALEN); | |
1553 | else | |
1554 | random_ether_addr(card->dev->dev_addr); | |
1555 | ||
1556 | return 0; | |
1557 | } | |
1558 | ||
1559 | static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card) | |
1560 | { | |
1561 | int rc = 0; | |
1562 | struct qeth_cmd_buffer *iob; | |
1563 | struct qeth_ipa_cmd *cmd; | |
1564 | ||
d11ba0c4 | 1565 | QETH_DBF_TEXT(SETUP, 2, "hsrmac"); |
4a71df50 FB |
1566 | |
1567 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR, | |
1568 | QETH_PROT_IPV6); | |
1569 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
1570 | *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = | |
1571 | card->info.unique_id; | |
1572 | ||
1573 | rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb, | |
1574 | NULL); | |
1575 | return rc; | |
1576 | } | |
1577 | ||
1578 | static int qeth_l3_get_unique_id_cb(struct qeth_card *card, | |
1579 | struct qeth_reply *reply, unsigned long data) | |
1580 | { | |
1581 | struct qeth_ipa_cmd *cmd; | |
1582 | ||
1583 | cmd = (struct qeth_ipa_cmd *) data; | |
1584 | if (cmd->hdr.return_code == 0) | |
1585 | card->info.unique_id = *((__u16 *) | |
1586 | &cmd->data.create_destroy_addr.unique_id[6]); | |
1587 | else { | |
1588 | card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | | |
1589 | UNIQUE_ID_NOT_BY_CARD; | |
74eacdb9 FB |
1590 | dev_warn(&card->gdev->dev, "The network adapter failed to " |
1591 | "generate a unique ID\n"); | |
4a71df50 FB |
1592 | } |
1593 | return 0; | |
1594 | } | |
1595 | ||
1596 | static int qeth_l3_get_unique_id(struct qeth_card *card) | |
1597 | { | |
1598 | int rc = 0; | |
1599 | struct qeth_cmd_buffer *iob; | |
1600 | struct qeth_ipa_cmd *cmd; | |
1601 | ||
d11ba0c4 | 1602 | QETH_DBF_TEXT(SETUP, 2, "guniqeid"); |
4a71df50 FB |
1603 | |
1604 | if (!qeth_is_supported(card, IPA_IPV6)) { | |
1605 | card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | | |
1606 | UNIQUE_ID_NOT_BY_CARD; | |
1607 | return 0; | |
1608 | } | |
1609 | ||
1610 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR, | |
1611 | QETH_PROT_IPV6); | |
1612 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
1613 | *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = | |
1614 | card->info.unique_id; | |
1615 | ||
1616 | rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL); | |
1617 | return rc; | |
1618 | } | |
1619 | ||
1620 | static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac, | |
1621 | struct net_device *dev) | |
1622 | { | |
1623 | if (dev->type == ARPHRD_IEEE802_TR) | |
1624 | ip_tr_mc_map(ipm, mac); | |
1625 | else | |
1626 | ip_eth_mc_map(ipm, mac); | |
1627 | } | |
1628 | ||
1629 | static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev) | |
1630 | { | |
1631 | struct qeth_ipaddr *ipm; | |
1632 | struct ip_mc_list *im4; | |
1633 | char buf[MAX_ADDR_LEN]; | |
1634 | ||
d11ba0c4 | 1635 | QETH_DBF_TEXT(TRACE, 4, "addmc"); |
4a71df50 FB |
1636 | for (im4 = in4_dev->mc_list; im4; im4 = im4->next) { |
1637 | qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev); | |
1638 | ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); | |
1639 | if (!ipm) | |
1640 | continue; | |
1641 | ipm->u.a4.addr = im4->multiaddr; | |
1642 | memcpy(ipm->mac, buf, OSA_ADDR_LEN); | |
1643 | ipm->is_multicast = 1; | |
1644 | if (!qeth_l3_add_ip(card, ipm)) | |
1645 | kfree(ipm); | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | static void qeth_l3_add_vlan_mc(struct qeth_card *card) | |
1650 | { | |
1651 | struct in_device *in_dev; | |
1652 | struct vlan_group *vg; | |
1653 | int i; | |
1654 | ||
d11ba0c4 | 1655 | QETH_DBF_TEXT(TRACE, 4, "addmcvl"); |
4a71df50 FB |
1656 | if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL)) |
1657 | return; | |
1658 | ||
1659 | vg = card->vlangrp; | |
1660 | for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { | |
1661 | struct net_device *netdev = vlan_group_get_device(vg, i); | |
1662 | if (netdev == NULL || | |
1663 | !(netdev->flags & IFF_UP)) | |
1664 | continue; | |
1665 | in_dev = in_dev_get(netdev); | |
1666 | if (!in_dev) | |
1667 | continue; | |
1668 | read_lock(&in_dev->mc_list_lock); | |
1669 | qeth_l3_add_mc(card, in_dev); | |
1670 | read_unlock(&in_dev->mc_list_lock); | |
1671 | in_dev_put(in_dev); | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | static void qeth_l3_add_multicast_ipv4(struct qeth_card *card) | |
1676 | { | |
1677 | struct in_device *in4_dev; | |
1678 | ||
d11ba0c4 | 1679 | QETH_DBF_TEXT(TRACE, 4, "chkmcv4"); |
4a71df50 FB |
1680 | in4_dev = in_dev_get(card->dev); |
1681 | if (in4_dev == NULL) | |
1682 | return; | |
1683 | read_lock(&in4_dev->mc_list_lock); | |
1684 | qeth_l3_add_mc(card, in4_dev); | |
1685 | qeth_l3_add_vlan_mc(card); | |
1686 | read_unlock(&in4_dev->mc_list_lock); | |
1687 | in_dev_put(in4_dev); | |
1688 | } | |
1689 | ||
1690 | #ifdef CONFIG_QETH_IPV6 | |
1691 | static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev) | |
1692 | { | |
1693 | struct qeth_ipaddr *ipm; | |
1694 | struct ifmcaddr6 *im6; | |
1695 | char buf[MAX_ADDR_LEN]; | |
1696 | ||
d11ba0c4 | 1697 | QETH_DBF_TEXT(TRACE, 4, "addmc6"); |
4a71df50 FB |
1698 | for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) { |
1699 | ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0); | |
1700 | ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); | |
1701 | if (!ipm) | |
1702 | continue; | |
1703 | ipm->is_multicast = 1; | |
1704 | memcpy(ipm->mac, buf, OSA_ADDR_LEN); | |
1705 | memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr, | |
1706 | sizeof(struct in6_addr)); | |
1707 | if (!qeth_l3_add_ip(card, ipm)) | |
1708 | kfree(ipm); | |
1709 | } | |
1710 | } | |
1711 | ||
1712 | static void qeth_l3_add_vlan_mc6(struct qeth_card *card) | |
1713 | { | |
1714 | struct inet6_dev *in_dev; | |
1715 | struct vlan_group *vg; | |
1716 | int i; | |
1717 | ||
d11ba0c4 | 1718 | QETH_DBF_TEXT(TRACE, 4, "admc6vl"); |
4a71df50 FB |
1719 | if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL)) |
1720 | return; | |
1721 | ||
1722 | vg = card->vlangrp; | |
1723 | for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { | |
1724 | struct net_device *netdev = vlan_group_get_device(vg, i); | |
1725 | if (netdev == NULL || | |
1726 | !(netdev->flags & IFF_UP)) | |
1727 | continue; | |
1728 | in_dev = in6_dev_get(netdev); | |
1729 | if (!in_dev) | |
1730 | continue; | |
1731 | read_lock_bh(&in_dev->lock); | |
1732 | qeth_l3_add_mc6(card, in_dev); | |
1733 | read_unlock_bh(&in_dev->lock); | |
1734 | in6_dev_put(in_dev); | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | static void qeth_l3_add_multicast_ipv6(struct qeth_card *card) | |
1739 | { | |
1740 | struct inet6_dev *in6_dev; | |
1741 | ||
d11ba0c4 | 1742 | QETH_DBF_TEXT(TRACE, 4, "chkmcv6"); |
4a71df50 FB |
1743 | if (!qeth_is_supported(card, IPA_IPV6)) |
1744 | return ; | |
1745 | in6_dev = in6_dev_get(card->dev); | |
1746 | if (in6_dev == NULL) | |
1747 | return; | |
1748 | read_lock_bh(&in6_dev->lock); | |
1749 | qeth_l3_add_mc6(card, in6_dev); | |
1750 | qeth_l3_add_vlan_mc6(card); | |
1751 | read_unlock_bh(&in6_dev->lock); | |
1752 | in6_dev_put(in6_dev); | |
1753 | } | |
1754 | #endif /* CONFIG_QETH_IPV6 */ | |
1755 | ||
1756 | static void qeth_l3_free_vlan_addresses4(struct qeth_card *card, | |
1757 | unsigned short vid) | |
1758 | { | |
1759 | struct in_device *in_dev; | |
1760 | struct in_ifaddr *ifa; | |
1761 | struct qeth_ipaddr *addr; | |
1762 | ||
d11ba0c4 | 1763 | QETH_DBF_TEXT(TRACE, 4, "frvaddr4"); |
4a71df50 FB |
1764 | |
1765 | in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid)); | |
1766 | if (!in_dev) | |
1767 | return; | |
1768 | for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { | |
1769 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); | |
1770 | if (addr) { | |
1771 | addr->u.a4.addr = ifa->ifa_address; | |
1772 | addr->u.a4.mask = ifa->ifa_mask; | |
1773 | addr->type = QETH_IP_TYPE_NORMAL; | |
1774 | if (!qeth_l3_delete_ip(card, addr)) | |
1775 | kfree(addr); | |
1776 | } | |
1777 | } | |
1778 | in_dev_put(in_dev); | |
1779 | } | |
1780 | ||
1781 | static void qeth_l3_free_vlan_addresses6(struct qeth_card *card, | |
1782 | unsigned short vid) | |
1783 | { | |
1784 | #ifdef CONFIG_QETH_IPV6 | |
1785 | struct inet6_dev *in6_dev; | |
1786 | struct inet6_ifaddr *ifa; | |
1787 | struct qeth_ipaddr *addr; | |
1788 | ||
d11ba0c4 | 1789 | QETH_DBF_TEXT(TRACE, 4, "frvaddr6"); |
4a71df50 FB |
1790 | |
1791 | in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid)); | |
1792 | if (!in6_dev) | |
1793 | return; | |
1794 | for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next) { | |
1795 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); | |
1796 | if (addr) { | |
1797 | memcpy(&addr->u.a6.addr, &ifa->addr, | |
1798 | sizeof(struct in6_addr)); | |
1799 | addr->u.a6.pfxlen = ifa->prefix_len; | |
1800 | addr->type = QETH_IP_TYPE_NORMAL; | |
1801 | if (!qeth_l3_delete_ip(card, addr)) | |
1802 | kfree(addr); | |
1803 | } | |
1804 | } | |
1805 | in6_dev_put(in6_dev); | |
1806 | #endif /* CONFIG_QETH_IPV6 */ | |
1807 | } | |
1808 | ||
1809 | static void qeth_l3_free_vlan_addresses(struct qeth_card *card, | |
1810 | unsigned short vid) | |
1811 | { | |
1812 | if (!card->vlangrp) | |
1813 | return; | |
1814 | qeth_l3_free_vlan_addresses4(card, vid); | |
1815 | qeth_l3_free_vlan_addresses6(card, vid); | |
1816 | } | |
1817 | ||
1818 | static void qeth_l3_vlan_rx_register(struct net_device *dev, | |
1819 | struct vlan_group *grp) | |
1820 | { | |
509e2562 | 1821 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
1822 | unsigned long flags; |
1823 | ||
d11ba0c4 | 1824 | QETH_DBF_TEXT(TRACE, 4, "vlanreg"); |
4a71df50 FB |
1825 | spin_lock_irqsave(&card->vlanlock, flags); |
1826 | card->vlangrp = grp; | |
1827 | spin_unlock_irqrestore(&card->vlanlock, flags); | |
1828 | } | |
1829 | ||
1830 | static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
1831 | { | |
4a71df50 FB |
1832 | return; |
1833 | } | |
1834 | ||
1835 | static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
1836 | { | |
509e2562 | 1837 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
1838 | unsigned long flags; |
1839 | ||
d11ba0c4 | 1840 | QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); |
8e98ac48 UB |
1841 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
1842 | QETH_DBF_TEXT(TRACE, 3, "kidREC"); | |
1843 | return; | |
1844 | } | |
4a71df50 FB |
1845 | spin_lock_irqsave(&card->vlanlock, flags); |
1846 | /* unregister IP addresses of vlan device */ | |
1847 | qeth_l3_free_vlan_addresses(card, vid); | |
1848 | vlan_group_set_device(card->vlangrp, vid, NULL); | |
1849 | spin_unlock_irqrestore(&card->vlanlock, flags); | |
1850 | qeth_l3_set_multicast_list(card->dev); | |
1851 | } | |
1852 | ||
1853 | static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card, | |
1854 | struct sk_buff *skb, struct qeth_hdr *hdr) | |
1855 | { | |
1856 | unsigned short vlan_id = 0; | |
1857 | __be16 prot; | |
1858 | struct iphdr *ip_hdr; | |
1859 | unsigned char tg_addr[MAX_ADDR_LEN]; | |
1860 | ||
1861 | if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) { | |
1862 | prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 : | |
1863 | ETH_P_IP); | |
1864 | switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) { | |
1865 | case QETH_CAST_MULTICAST: | |
1866 | switch (prot) { | |
1867 | #ifdef CONFIG_QETH_IPV6 | |
1868 | case __constant_htons(ETH_P_IPV6): | |
1869 | ndisc_mc_map((struct in6_addr *) | |
1870 | skb->data + 24, | |
1871 | tg_addr, card->dev, 0); | |
1872 | break; | |
1873 | #endif | |
1874 | case __constant_htons(ETH_P_IP): | |
1875 | ip_hdr = (struct iphdr *)skb->data; | |
1876 | (card->dev->type == ARPHRD_IEEE802_TR) ? | |
1877 | ip_tr_mc_map(ip_hdr->daddr, tg_addr): | |
1878 | ip_eth_mc_map(ip_hdr->daddr, tg_addr); | |
1879 | break; | |
1880 | default: | |
1881 | memcpy(tg_addr, card->dev->broadcast, | |
1882 | card->dev->addr_len); | |
1883 | } | |
1884 | card->stats.multicast++; | |
1885 | skb->pkt_type = PACKET_MULTICAST; | |
1886 | break; | |
1887 | case QETH_CAST_BROADCAST: | |
1888 | memcpy(tg_addr, card->dev->broadcast, | |
1889 | card->dev->addr_len); | |
1890 | card->stats.multicast++; | |
1891 | skb->pkt_type = PACKET_BROADCAST; | |
1892 | break; | |
1893 | case QETH_CAST_UNICAST: | |
1894 | case QETH_CAST_ANYCAST: | |
1895 | case QETH_CAST_NOCAST: | |
1896 | default: | |
1897 | skb->pkt_type = PACKET_HOST; | |
1898 | memcpy(tg_addr, card->dev->dev_addr, | |
1899 | card->dev->addr_len); | |
1900 | } | |
fe94e2e0 UB |
1901 | if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR) |
1902 | card->dev->header_ops->create(skb, card->dev, prot, | |
1903 | tg_addr, &hdr->hdr.l3.dest_addr[2], | |
1904 | card->dev->addr_len); | |
1905 | else | |
1906 | card->dev->header_ops->create(skb, card->dev, prot, | |
1907 | tg_addr, "FAKELL", card->dev->addr_len); | |
4a71df50 FB |
1908 | } |
1909 | ||
1910 | #ifdef CONFIG_TR | |
1911 | if (card->dev->type == ARPHRD_IEEE802_TR) | |
1912 | skb->protocol = tr_type_trans(skb, card->dev); | |
1913 | else | |
1914 | #endif | |
1915 | skb->protocol = eth_type_trans(skb, card->dev); | |
1916 | ||
1917 | if (hdr->hdr.l3.ext_flags & | |
1918 | (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) { | |
1919 | vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)? | |
1920 | hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]); | |
1921 | } | |
1922 | ||
1923 | skb->ip_summed = card->options.checksum_type; | |
1924 | if (card->options.checksum_type == HW_CHECKSUMMING) { | |
1925 | if ((hdr->hdr.l3.ext_flags & | |
1926 | (QETH_HDR_EXT_CSUM_HDR_REQ | | |
1927 | QETH_HDR_EXT_CSUM_TRANSP_REQ)) == | |
1928 | (QETH_HDR_EXT_CSUM_HDR_REQ | | |
1929 | QETH_HDR_EXT_CSUM_TRANSP_REQ)) | |
1930 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1931 | else | |
1932 | skb->ip_summed = SW_CHECKSUMMING; | |
1933 | } | |
1934 | ||
1935 | return vlan_id; | |
1936 | } | |
1937 | ||
1938 | static void qeth_l3_process_inbound_buffer(struct qeth_card *card, | |
1939 | struct qeth_qdio_buffer *buf, int index) | |
1940 | { | |
1941 | struct qdio_buffer_element *element; | |
1942 | struct sk_buff *skb; | |
1943 | struct qeth_hdr *hdr; | |
1944 | int offset; | |
1945 | __u16 vlan_tag = 0; | |
1946 | unsigned int len; | |
1947 | ||
1948 | /* get first element of current buffer */ | |
1949 | element = (struct qdio_buffer_element *)&buf->buffer->element[0]; | |
1950 | offset = 0; | |
1951 | if (card->options.performance_stats) | |
1952 | card->perf_stats.bufs_rec++; | |
1953 | while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, | |
1954 | &offset, &hdr))) { | |
1955 | skb->dev = card->dev; | |
1956 | /* is device UP ? */ | |
1957 | if (!(card->dev->flags & IFF_UP)) { | |
1958 | dev_kfree_skb_any(skb); | |
1959 | continue; | |
1960 | } | |
1961 | ||
1962 | switch (hdr->hdr.l3.id) { | |
1963 | case QETH_HEADER_TYPE_LAYER3: | |
1964 | vlan_tag = qeth_l3_rebuild_skb(card, skb, hdr); | |
1965 | len = skb->len; | |
1966 | if (vlan_tag) | |
1967 | if (card->vlangrp) | |
1968 | vlan_hwaccel_rx(skb, card->vlangrp, | |
1969 | vlan_tag); | |
1970 | else { | |
1971 | dev_kfree_skb_any(skb); | |
1972 | continue; | |
1973 | } | |
1974 | else | |
1975 | netif_rx(skb); | |
1976 | break; | |
1977 | default: | |
1978 | dev_kfree_skb_any(skb); | |
d11ba0c4 PT |
1979 | QETH_DBF_TEXT(TRACE, 3, "inbunkno"); |
1980 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); | |
4a71df50 FB |
1981 | continue; |
1982 | } | |
1983 | ||
1984 | card->dev->last_rx = jiffies; | |
1985 | card->stats.rx_packets++; | |
1986 | card->stats.rx_bytes += len; | |
1987 | } | |
1988 | } | |
1989 | ||
1990 | static int qeth_l3_verify_vlan_dev(struct net_device *dev, | |
1991 | struct qeth_card *card) | |
1992 | { | |
1993 | int rc = 0; | |
1994 | struct vlan_group *vg; | |
1995 | int i; | |
1996 | ||
1997 | vg = card->vlangrp; | |
1998 | if (!vg) | |
1999 | return rc; | |
2000 | ||
2001 | for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { | |
2002 | if (vlan_group_get_device(vg, i) == dev) { | |
2003 | rc = QETH_VLAN_CARD; | |
2004 | break; | |
2005 | } | |
2006 | } | |
2007 | ||
509e2562 | 2008 | if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card)) |
4a71df50 FB |
2009 | return 0; |
2010 | ||
2011 | return rc; | |
2012 | } | |
2013 | ||
2014 | static int qeth_l3_verify_dev(struct net_device *dev) | |
2015 | { | |
2016 | struct qeth_card *card; | |
2017 | unsigned long flags; | |
2018 | int rc = 0; | |
2019 | ||
2020 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
2021 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
2022 | if (card->dev == dev) { | |
2023 | rc = QETH_REAL_CARD; | |
2024 | break; | |
2025 | } | |
2026 | rc = qeth_l3_verify_vlan_dev(dev, card); | |
2027 | if (rc) | |
2028 | break; | |
2029 | } | |
2030 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
2031 | ||
2032 | return rc; | |
2033 | } | |
2034 | ||
2035 | static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev) | |
2036 | { | |
2037 | struct qeth_card *card = NULL; | |
2038 | int rc; | |
2039 | ||
2040 | rc = qeth_l3_verify_dev(dev); | |
2041 | if (rc == QETH_REAL_CARD) | |
509e2562 | 2042 | card = dev->ml_priv; |
4a71df50 | 2043 | else if (rc == QETH_VLAN_CARD) |
509e2562 | 2044 | card = vlan_dev_real_dev(dev)->ml_priv; |
e5bd7be5 | 2045 | if (card && card->options.layer2) |
4a71df50 | 2046 | card = NULL; |
d11ba0c4 | 2047 | QETH_DBF_TEXT_(TRACE, 4, "%d", rc); |
4a71df50 FB |
2048 | return card ; |
2049 | } | |
2050 | ||
2051 | static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) | |
2052 | { | |
2053 | int rc = 0; | |
2054 | ||
d11ba0c4 PT |
2055 | QETH_DBF_TEXT(SETUP, 2, "stopcard"); |
2056 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
2057 | |
2058 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
2059 | if (card->read.state == CH_STATE_UP && |
2060 | card->write.state == CH_STATE_UP && | |
2061 | (card->state == CARD_STATE_UP)) { | |
2062 | if (recovery_mode) | |
2063 | qeth_l3_stop(card->dev); | |
8af7c5ae | 2064 | else { |
fc9c2460 UB |
2065 | if (card->dev) { |
2066 | rtnl_lock(); | |
2067 | dev_close(card->dev); | |
2068 | rtnl_unlock(); | |
2069 | } | |
8af7c5ae | 2070 | } |
4a71df50 FB |
2071 | if (!card->use_hard_stop) { |
2072 | rc = qeth_send_stoplan(card); | |
2073 | if (rc) | |
d11ba0c4 | 2074 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
2075 | } |
2076 | card->state = CARD_STATE_SOFTSETUP; | |
2077 | } | |
2078 | if (card->state == CARD_STATE_SOFTSETUP) { | |
2079 | qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1); | |
2080 | qeth_clear_ipacmd_list(card); | |
2081 | card->state = CARD_STATE_HARDSETUP; | |
2082 | } | |
2083 | if (card->state == CARD_STATE_HARDSETUP) { | |
2084 | if (!card->use_hard_stop && | |
2085 | (card->info.type != QETH_CARD_TYPE_IQD)) { | |
2086 | rc = qeth_l3_put_unique_id(card); | |
2087 | if (rc) | |
d11ba0c4 | 2088 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
2089 | } |
2090 | qeth_qdio_clear_card(card, 0); | |
2091 | qeth_clear_qdio_buffers(card); | |
2092 | qeth_clear_working_pool_list(card); | |
2093 | card->state = CARD_STATE_DOWN; | |
2094 | } | |
2095 | if (card->state == CARD_STATE_DOWN) { | |
2096 | qeth_clear_cmd_buffers(&card->read); | |
2097 | qeth_clear_cmd_buffers(&card->write); | |
2098 | } | |
2099 | card->use_hard_stop = 0; | |
2100 | return rc; | |
2101 | } | |
2102 | ||
2103 | static void qeth_l3_set_multicast_list(struct net_device *dev) | |
2104 | { | |
509e2562 | 2105 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 2106 | |
d11ba0c4 | 2107 | QETH_DBF_TEXT(TRACE, 3, "setmulti"); |
8e98ac48 UB |
2108 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
2109 | (card->state != CARD_STATE_UP)) | |
2110 | return; | |
4a71df50 FB |
2111 | qeth_l3_delete_mc_addresses(card); |
2112 | qeth_l3_add_multicast_ipv4(card); | |
2113 | #ifdef CONFIG_QETH_IPV6 | |
2114 | qeth_l3_add_multicast_ipv6(card); | |
2115 | #endif | |
2116 | qeth_l3_set_ip_addr_list(card); | |
2117 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
2118 | return; | |
2119 | qeth_setadp_promisc_mode(card); | |
2120 | } | |
2121 | ||
2122 | static const char *qeth_l3_arp_get_error_cause(int *rc) | |
2123 | { | |
2124 | switch (*rc) { | |
2125 | case QETH_IPA_ARP_RC_FAILED: | |
2126 | *rc = -EIO; | |
2127 | return "operation failed"; | |
2128 | case QETH_IPA_ARP_RC_NOTSUPP: | |
2129 | *rc = -EOPNOTSUPP; | |
2130 | return "operation not supported"; | |
2131 | case QETH_IPA_ARP_RC_OUT_OF_RANGE: | |
2132 | *rc = -EINVAL; | |
2133 | return "argument out of range"; | |
2134 | case QETH_IPA_ARP_RC_Q_NOTSUPP: | |
2135 | *rc = -EOPNOTSUPP; | |
2136 | return "query operation not supported"; | |
2137 | case QETH_IPA_ARP_RC_Q_NO_DATA: | |
2138 | *rc = -ENOENT; | |
2139 | return "no query data available"; | |
2140 | default: | |
2141 | return "unknown error"; | |
2142 | } | |
2143 | } | |
2144 | ||
2145 | static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries) | |
2146 | { | |
2147 | int tmp; | |
2148 | int rc; | |
2149 | ||
d11ba0c4 | 2150 | QETH_DBF_TEXT(TRACE, 3, "arpstnoe"); |
4a71df50 FB |
2151 | |
2152 | /* | |
2153 | * currently GuestLAN only supports the ARP assist function | |
2154 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES; | |
2155 | * thus we say EOPNOTSUPP for this ARP function | |
2156 | */ | |
2157 | if (card->info.guestlan) | |
2158 | return -EOPNOTSUPP; | |
2159 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2160 | return -EOPNOTSUPP; |
2161 | } | |
2162 | rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING, | |
2163 | IPA_CMD_ASS_ARP_SET_NO_ENTRIES, | |
2164 | no_entries); | |
2165 | if (rc) { | |
2166 | tmp = rc; | |
14cc21b6 FB |
2167 | QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on " |
2168 | "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card), | |
4a71df50 FB |
2169 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); |
2170 | } | |
2171 | return rc; | |
2172 | } | |
2173 | ||
2174 | static void qeth_l3_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo, | |
2175 | struct qeth_arp_query_data *qdata, int entry_size, | |
2176 | int uentry_size) | |
2177 | { | |
2178 | char *entry_ptr; | |
2179 | char *uentry_ptr; | |
2180 | int i; | |
2181 | ||
2182 | entry_ptr = (char *)&qdata->data; | |
2183 | uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset); | |
2184 | for (i = 0; i < qdata->no_entries; ++i) { | |
2185 | /* strip off 32 bytes "media specific information" */ | |
2186 | memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32); | |
2187 | entry_ptr += entry_size; | |
2188 | uentry_ptr += uentry_size; | |
2189 | } | |
2190 | } | |
2191 | ||
2192 | static int qeth_l3_arp_query_cb(struct qeth_card *card, | |
2193 | struct qeth_reply *reply, unsigned long data) | |
2194 | { | |
2195 | struct qeth_ipa_cmd *cmd; | |
2196 | struct qeth_arp_query_data *qdata; | |
2197 | struct qeth_arp_query_info *qinfo; | |
2198 | int entry_size; | |
2199 | int uentry_size; | |
2200 | int i; | |
2201 | ||
d11ba0c4 | 2202 | QETH_DBF_TEXT(TRACE, 4, "arpquecb"); |
4a71df50 FB |
2203 | |
2204 | qinfo = (struct qeth_arp_query_info *) reply->param; | |
2205 | cmd = (struct qeth_ipa_cmd *) data; | |
2206 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 2207 | QETH_DBF_TEXT_(TRACE, 4, "qaer1%i", cmd->hdr.return_code); |
4a71df50 FB |
2208 | return 0; |
2209 | } | |
2210 | if (cmd->data.setassparms.hdr.return_code) { | |
2211 | cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; | |
d11ba0c4 | 2212 | QETH_DBF_TEXT_(TRACE, 4, "qaer2%i", cmd->hdr.return_code); |
4a71df50 FB |
2213 | return 0; |
2214 | } | |
2215 | qdata = &cmd->data.setassparms.data.query_arp; | |
2216 | switch (qdata->reply_bits) { | |
2217 | case 5: | |
2218 | uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5); | |
2219 | if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) | |
2220 | uentry_size = sizeof(struct qeth_arp_qi_entry5_short); | |
2221 | break; | |
2222 | case 7: | |
2223 | /* fall through to default */ | |
2224 | default: | |
2225 | /* tr is the same as eth -> entry7 */ | |
2226 | uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7); | |
2227 | if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) | |
2228 | uentry_size = sizeof(struct qeth_arp_qi_entry7_short); | |
2229 | break; | |
2230 | } | |
2231 | /* check if there is enough room in userspace */ | |
2232 | if ((qinfo->udata_len - qinfo->udata_offset) < | |
2233 | qdata->no_entries * uentry_size){ | |
d11ba0c4 | 2234 | QETH_DBF_TEXT_(TRACE, 4, "qaer3%i", -ENOMEM); |
4a71df50 | 2235 | cmd->hdr.return_code = -ENOMEM; |
4a71df50 FB |
2236 | goto out_error; |
2237 | } | |
d11ba0c4 | 2238 | QETH_DBF_TEXT_(TRACE, 4, "anore%i", |
4a71df50 | 2239 | cmd->data.setassparms.hdr.number_of_replies); |
d11ba0c4 PT |
2240 | QETH_DBF_TEXT_(TRACE, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no); |
2241 | QETH_DBF_TEXT_(TRACE, 4, "anoen%i", qdata->no_entries); | |
4a71df50 FB |
2242 | |
2243 | if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) { | |
2244 | /* strip off "media specific information" */ | |
2245 | qeth_l3_copy_arp_entries_stripped(qinfo, qdata, entry_size, | |
2246 | uentry_size); | |
2247 | } else | |
2248 | /*copy entries to user buffer*/ | |
2249 | memcpy(qinfo->udata + qinfo->udata_offset, | |
2250 | (char *)&qdata->data, qdata->no_entries*uentry_size); | |
2251 | ||
2252 | qinfo->no_entries += qdata->no_entries; | |
2253 | qinfo->udata_offset += (qdata->no_entries*uentry_size); | |
2254 | /* check if all replies received ... */ | |
2255 | if (cmd->data.setassparms.hdr.seq_no < | |
2256 | cmd->data.setassparms.hdr.number_of_replies) | |
2257 | return 1; | |
2258 | memcpy(qinfo->udata, &qinfo->no_entries, 4); | |
2259 | /* keep STRIP_ENTRIES flag so the user program can distinguish | |
2260 | * stripped entries from normal ones */ | |
2261 | if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) | |
2262 | qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES; | |
2263 | memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2); | |
2264 | return 0; | |
2265 | out_error: | |
2266 | i = 0; | |
2267 | memcpy(qinfo->udata, &i, 4); | |
2268 | return 0; | |
2269 | } | |
2270 | ||
2271 | static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card, | |
2272 | struct qeth_cmd_buffer *iob, int len, | |
2273 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, | |
2274 | unsigned long), | |
2275 | void *reply_param) | |
2276 | { | |
d11ba0c4 | 2277 | QETH_DBF_TEXT(TRACE, 4, "sendarp"); |
4a71df50 FB |
2278 | |
2279 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); | |
2280 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), | |
2281 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); | |
2282 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, | |
2283 | reply_cb, reply_param); | |
2284 | } | |
2285 | ||
2286 | static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata) | |
2287 | { | |
2288 | struct qeth_cmd_buffer *iob; | |
2289 | struct qeth_arp_query_info qinfo = {0, }; | |
2290 | int tmp; | |
2291 | int rc; | |
2292 | ||
d11ba0c4 | 2293 | QETH_DBF_TEXT(TRACE, 3, "arpquery"); |
4a71df50 FB |
2294 | |
2295 | if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/ | |
2296 | IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2297 | return -EOPNOTSUPP; |
2298 | } | |
2299 | /* get size of userspace buffer and mask_bits -> 6 bytes */ | |
2300 | if (copy_from_user(&qinfo, udata, 6)) | |
2301 | return -EFAULT; | |
2302 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); | |
2303 | if (!qinfo.udata) | |
2304 | return -ENOMEM; | |
2305 | qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET; | |
2306 | iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING, | |
2307 | IPA_CMD_ASS_ARP_QUERY_INFO, | |
2308 | sizeof(int), QETH_PROT_IPV4); | |
2309 | ||
2310 | rc = qeth_l3_send_ipa_arp_cmd(card, iob, | |
2311 | QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN, | |
2312 | qeth_l3_arp_query_cb, (void *)&qinfo); | |
2313 | if (rc) { | |
2314 | tmp = rc; | |
14cc21b6 | 2315 | QETH_DBF_MESSAGE(2, "Error while querying ARP cache on %s: %s " |
4a71df50 FB |
2316 | "(0x%x/%d)\n", QETH_CARD_IFNAME(card), |
2317 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); | |
2318 | if (copy_to_user(udata, qinfo.udata, 4)) | |
2319 | rc = -EFAULT; | |
2320 | } else { | |
2321 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) | |
2322 | rc = -EFAULT; | |
2323 | } | |
2324 | kfree(qinfo.udata); | |
2325 | return rc; | |
2326 | } | |
2327 | ||
2328 | static int qeth_l3_arp_add_entry(struct qeth_card *card, | |
2329 | struct qeth_arp_cache_entry *entry) | |
2330 | { | |
2331 | struct qeth_cmd_buffer *iob; | |
2332 | char buf[16]; | |
2333 | int tmp; | |
2334 | int rc; | |
2335 | ||
d11ba0c4 | 2336 | QETH_DBF_TEXT(TRACE, 3, "arpadent"); |
4a71df50 FB |
2337 | |
2338 | /* | |
2339 | * currently GuestLAN only supports the ARP assist function | |
2340 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY; | |
2341 | * thus we say EOPNOTSUPP for this ARP function | |
2342 | */ | |
2343 | if (card->info.guestlan) | |
2344 | return -EOPNOTSUPP; | |
2345 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2346 | return -EOPNOTSUPP; |
2347 | } | |
2348 | ||
2349 | iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING, | |
2350 | IPA_CMD_ASS_ARP_ADD_ENTRY, | |
2351 | sizeof(struct qeth_arp_cache_entry), | |
2352 | QETH_PROT_IPV4); | |
2353 | rc = qeth_l3_send_setassparms(card, iob, | |
2354 | sizeof(struct qeth_arp_cache_entry), | |
2355 | (unsigned long) entry, | |
2356 | qeth_l3_default_setassparms_cb, NULL); | |
2357 | if (rc) { | |
2358 | tmp = rc; | |
2359 | qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf); | |
14cc21b6 FB |
2360 | QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s " |
2361 | "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card), | |
2362 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); | |
4a71df50 FB |
2363 | } |
2364 | return rc; | |
2365 | } | |
2366 | ||
2367 | static int qeth_l3_arp_remove_entry(struct qeth_card *card, | |
2368 | struct qeth_arp_cache_entry *entry) | |
2369 | { | |
2370 | struct qeth_cmd_buffer *iob; | |
2371 | char buf[16] = {0, }; | |
2372 | int tmp; | |
2373 | int rc; | |
2374 | ||
d11ba0c4 | 2375 | QETH_DBF_TEXT(TRACE, 3, "arprment"); |
4a71df50 FB |
2376 | |
2377 | /* | |
2378 | * currently GuestLAN only supports the ARP assist function | |
2379 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY; | |
2380 | * thus we say EOPNOTSUPP for this ARP function | |
2381 | */ | |
2382 | if (card->info.guestlan) | |
2383 | return -EOPNOTSUPP; | |
2384 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2385 | return -EOPNOTSUPP; |
2386 | } | |
2387 | memcpy(buf, entry, 12); | |
2388 | iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING, | |
2389 | IPA_CMD_ASS_ARP_REMOVE_ENTRY, | |
2390 | 12, | |
2391 | QETH_PROT_IPV4); | |
2392 | rc = qeth_l3_send_setassparms(card, iob, | |
2393 | 12, (unsigned long)buf, | |
2394 | qeth_l3_default_setassparms_cb, NULL); | |
2395 | if (rc) { | |
2396 | tmp = rc; | |
2397 | memset(buf, 0, 16); | |
2398 | qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf); | |
14cc21b6 FB |
2399 | QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s" |
2400 | " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card), | |
2401 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); | |
4a71df50 FB |
2402 | } |
2403 | return rc; | |
2404 | } | |
2405 | ||
2406 | static int qeth_l3_arp_flush_cache(struct qeth_card *card) | |
2407 | { | |
2408 | int rc; | |
2409 | int tmp; | |
2410 | ||
d11ba0c4 | 2411 | QETH_DBF_TEXT(TRACE, 3, "arpflush"); |
4a71df50 FB |
2412 | |
2413 | /* | |
2414 | * currently GuestLAN only supports the ARP assist function | |
2415 | * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE; | |
2416 | * thus we say EOPNOTSUPP for this ARP function | |
2417 | */ | |
2418 | if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD)) | |
2419 | return -EOPNOTSUPP; | |
2420 | if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) { | |
4a71df50 FB |
2421 | return -EOPNOTSUPP; |
2422 | } | |
2423 | rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING, | |
2424 | IPA_CMD_ASS_ARP_FLUSH_CACHE, 0); | |
2425 | if (rc) { | |
2426 | tmp = rc; | |
14cc21b6 FB |
2427 | QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s " |
2428 | "(0x%x/%d)\n", QETH_CARD_IFNAME(card), | |
4a71df50 FB |
2429 | qeth_l3_arp_get_error_cause(&rc), tmp, tmp); |
2430 | } | |
2431 | return rc; | |
2432 | } | |
2433 | ||
2434 | static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2435 | { | |
509e2562 | 2436 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
2437 | struct qeth_arp_cache_entry arp_entry; |
2438 | struct mii_ioctl_data *mii_data; | |
2439 | int rc = 0; | |
2440 | ||
2441 | if (!card) | |
2442 | return -ENODEV; | |
2443 | ||
2444 | if ((card->state != CARD_STATE_UP) && | |
2445 | (card->state != CARD_STATE_SOFTSETUP)) | |
2446 | return -ENODEV; | |
2447 | ||
2448 | switch (cmd) { | |
2449 | case SIOC_QETH_ARP_SET_NO_ENTRIES: | |
2450 | if (!capable(CAP_NET_ADMIN)) { | |
2451 | rc = -EPERM; | |
2452 | break; | |
2453 | } | |
2454 | rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue); | |
2455 | break; | |
2456 | case SIOC_QETH_ARP_QUERY_INFO: | |
2457 | if (!capable(CAP_NET_ADMIN)) { | |
2458 | rc = -EPERM; | |
2459 | break; | |
2460 | } | |
2461 | rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data); | |
2462 | break; | |
2463 | case SIOC_QETH_ARP_ADD_ENTRY: | |
2464 | if (!capable(CAP_NET_ADMIN)) { | |
2465 | rc = -EPERM; | |
2466 | break; | |
2467 | } | |
2468 | if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, | |
2469 | sizeof(struct qeth_arp_cache_entry))) | |
2470 | rc = -EFAULT; | |
2471 | else | |
2472 | rc = qeth_l3_arp_add_entry(card, &arp_entry); | |
2473 | break; | |
2474 | case SIOC_QETH_ARP_REMOVE_ENTRY: | |
2475 | if (!capable(CAP_NET_ADMIN)) { | |
2476 | rc = -EPERM; | |
2477 | break; | |
2478 | } | |
2479 | if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, | |
2480 | sizeof(struct qeth_arp_cache_entry))) | |
2481 | rc = -EFAULT; | |
2482 | else | |
2483 | rc = qeth_l3_arp_remove_entry(card, &arp_entry); | |
2484 | break; | |
2485 | case SIOC_QETH_ARP_FLUSH_CACHE: | |
2486 | if (!capable(CAP_NET_ADMIN)) { | |
2487 | rc = -EPERM; | |
2488 | break; | |
2489 | } | |
2490 | rc = qeth_l3_arp_flush_cache(card); | |
2491 | break; | |
2492 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
2493 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
2494 | break; | |
2495 | case SIOC_QETH_GET_CARD_TYPE: | |
2496 | if ((card->info.type == QETH_CARD_TYPE_OSAE) && | |
2497 | !card->info.guestlan) | |
2498 | return 1; | |
2499 | return 0; | |
2500 | break; | |
2501 | case SIOCGMIIPHY: | |
2502 | mii_data = if_mii(rq); | |
2503 | mii_data->phy_id = 0; | |
2504 | break; | |
2505 | case SIOCGMIIREG: | |
2506 | mii_data = if_mii(rq); | |
2507 | if (mii_data->phy_id != 0) | |
2508 | rc = -EINVAL; | |
2509 | else | |
2510 | mii_data->val_out = qeth_mdio_read(dev, | |
2511 | mii_data->phy_id, | |
2512 | mii_data->reg_num); | |
2513 | break; | |
2514 | default: | |
2515 | rc = -EOPNOTSUPP; | |
2516 | } | |
2517 | if (rc) | |
d11ba0c4 | 2518 | QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); |
4a71df50 FB |
2519 | return rc; |
2520 | } | |
2521 | ||
2522 | static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
2523 | struct sk_buff *skb, int ipv, int cast_type) | |
2524 | { | |
4a71df50 FB |
2525 | memset(hdr, 0, sizeof(struct qeth_hdr)); |
2526 | hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; | |
2527 | hdr->hdr.l3.ext_flags = 0; | |
2528 | ||
2529 | /* | |
2530 | * before we're going to overwrite this location with next hop ip. | |
2531 | * v6 uses passthrough, v4 sets the tag in the QDIO header. | |
2532 | */ | |
2533 | if (card->vlangrp && vlan_tx_tag_present(skb)) { | |
213298f8 FB |
2534 | if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD)) |
2535 | hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME; | |
2536 | else | |
2537 | hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG; | |
4a71df50 FB |
2538 | hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb); |
2539 | } | |
2540 | ||
2541 | hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr); | |
2542 | if (ipv == 4) { | |
2543 | /* IPv4 */ | |
2544 | hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type); | |
2545 | memset(hdr->hdr.l3.dest_addr, 0, 12); | |
2546 | if ((skb->dst) && (skb->dst->neighbour)) { | |
2547 | *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = | |
2548 | *((u32 *) skb->dst->neighbour->primary_key); | |
2549 | } else { | |
2550 | /* fill in destination address used in ip header */ | |
2551 | *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = | |
2552 | ip_hdr(skb)->daddr; | |
2553 | } | |
2554 | } else if (ipv == 6) { | |
2555 | /* IPv6 */ | |
2556 | hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type); | |
2557 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
2558 | hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU; | |
2559 | if ((skb->dst) && (skb->dst->neighbour)) { | |
2560 | memcpy(hdr->hdr.l3.dest_addr, | |
2561 | skb->dst->neighbour->primary_key, 16); | |
2562 | } else { | |
2563 | /* fill in destination address used in ip header */ | |
2564 | memcpy(hdr->hdr.l3.dest_addr, | |
2565 | &ipv6_hdr(skb)->daddr, 16); | |
2566 | } | |
2567 | } else { | |
2568 | /* passthrough */ | |
2569 | if ((skb->dev->type == ARPHRD_IEEE802_TR) && | |
2570 | !memcmp(skb->data + sizeof(struct qeth_hdr) + | |
2571 | sizeof(__u16), skb->dev->broadcast, 6)) { | |
2572 | hdr->hdr.l3.flags = QETH_CAST_BROADCAST | | |
2573 | QETH_HDR_PASSTHRU; | |
2574 | } else if (!memcmp(skb->data + sizeof(struct qeth_hdr), | |
2575 | skb->dev->broadcast, 6)) { | |
2576 | /* broadcast? */ | |
2577 | hdr->hdr.l3.flags = QETH_CAST_BROADCAST | | |
2578 | QETH_HDR_PASSTHRU; | |
2579 | } else { | |
2580 | hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ? | |
2581 | QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU : | |
2582 | QETH_CAST_UNICAST | QETH_HDR_PASSTHRU; | |
2583 | } | |
2584 | } | |
2585 | } | |
2586 | ||
64ef8957 FB |
2587 | static void qeth_tso_fill_header(struct qeth_card *card, |
2588 | struct qeth_hdr *qhdr, struct sk_buff *skb) | |
2589 | { | |
2590 | struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr; | |
2591 | struct tcphdr *tcph = tcp_hdr(skb); | |
2592 | struct iphdr *iph = ip_hdr(skb); | |
2593 | struct ipv6hdr *ip6h = ipv6_hdr(skb); | |
2594 | ||
2595 | /*fix header to TSO values ...*/ | |
2596 | hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO; | |
2597 | /*set values which are fix for the first approach ...*/ | |
2598 | hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso); | |
2599 | hdr->ext.imb_hdr_no = 1; | |
2600 | hdr->ext.hdr_type = 1; | |
2601 | hdr->ext.hdr_version = 1; | |
2602 | hdr->ext.hdr_len = 28; | |
2603 | /*insert non-fix values */ | |
2604 | hdr->ext.mss = skb_shinfo(skb)->gso_size; | |
2605 | hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4); | |
2606 | hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len - | |
2607 | sizeof(struct qeth_hdr_tso)); | |
2608 | tcph->check = 0; | |
2609 | if (skb->protocol == ETH_P_IPV6) { | |
2610 | ip6h->payload_len = 0; | |
2611 | tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, | |
2612 | 0, IPPROTO_TCP, 0); | |
2613 | } else { | |
2614 | /*OSA want us to set these values ...*/ | |
2615 | tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, | |
2616 | 0, IPPROTO_TCP, 0); | |
2617 | iph->tot_len = 0; | |
2618 | iph->check = 0; | |
2619 | } | |
2620 | } | |
2621 | ||
2622 | static void qeth_tx_csum(struct sk_buff *skb) | |
2623 | { | |
2624 | __wsum csum; | |
2625 | int offset; | |
2626 | ||
2627 | skb_set_transport_header(skb, skb->csum_start - skb_headroom(skb)); | |
2628 | offset = skb->csum_start - skb_headroom(skb); | |
2629 | BUG_ON(offset >= skb_headlen(skb)); | |
2630 | csum = skb_checksum(skb, offset, skb->len - offset, 0); | |
2631 | ||
2632 | offset += skb->csum_offset; | |
2633 | BUG_ON(offset + sizeof(__sum16) > skb_headlen(skb)); | |
2634 | *(__sum16 *)(skb->data + offset) = csum_fold(csum); | |
2635 | } | |
2636 | ||
4a71df50 FB |
2637 | static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
2638 | { | |
2639 | int rc; | |
2640 | u16 *tag; | |
2641 | struct qeth_hdr *hdr = NULL; | |
2642 | int elements_needed = 0; | |
64ef8957 | 2643 | int elems; |
509e2562 | 2644 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
2645 | struct sk_buff *new_skb = NULL; |
2646 | int ipv = qeth_get_ip_version(skb); | |
2647 | int cast_type = qeth_get_cast_type(card, skb); | |
2648 | struct qeth_qdio_out_q *queue = card->qdio.out_qs | |
2649 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
2650 | int tx_bytes = skb->len; | |
2651 | enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; | |
683d718a | 2652 | int data_offset = -1; |
64ef8957 | 2653 | int nr_frags; |
4a71df50 | 2654 | |
4a71df50 FB |
2655 | if ((card->info.type == QETH_CARD_TYPE_IQD) && |
2656 | (skb->protocol != htons(ETH_P_IPV6)) && | |
2657 | (skb->protocol != htons(ETH_P_IP))) | |
2658 | goto tx_drop; | |
2659 | ||
2660 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { | |
2661 | card->stats.tx_carrier_errors++; | |
2662 | goto tx_drop; | |
2663 | } | |
2664 | ||
2665 | if ((cast_type == RTN_BROADCAST) && | |
2666 | (card->info.broadcast_capable == 0)) | |
2667 | goto tx_drop; | |
2668 | ||
2669 | if (card->options.performance_stats) { | |
2670 | card->perf_stats.outbound_cnt++; | |
2671 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
2672 | } | |
2673 | ||
683d718a FB |
2674 | if (skb_is_gso(skb)) |
2675 | large_send = card->options.large_send; | |
64ef8957 FB |
2676 | else |
2677 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
2678 | qeth_tx_csum(skb); | |
2679 | if (card->options.performance_stats) | |
2680 | card->perf_stats.tx_csum++; | |
2681 | } | |
683d718a FB |
2682 | |
2683 | if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && | |
2684 | (skb_shinfo(skb)->nr_frags == 0)) { | |
2685 | new_skb = skb; | |
2686 | data_offset = ETH_HLEN; | |
2687 | hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); | |
2688 | if (!hdr) | |
2689 | goto tx_drop; | |
2690 | elements_needed++; | |
2691 | } else { | |
2692 | /* create a clone with writeable headroom */ | |
2693 | new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso) | |
2694 | + VLAN_HLEN); | |
2695 | if (!new_skb) | |
2696 | goto tx_drop; | |
2697 | } | |
4a71df50 FB |
2698 | |
2699 | if (card->info.type == QETH_CARD_TYPE_IQD) { | |
683d718a FB |
2700 | if (data_offset < 0) |
2701 | skb_pull(new_skb, ETH_HLEN); | |
4a71df50 FB |
2702 | } else { |
2703 | if (new_skb->protocol == htons(ETH_P_IP)) { | |
2704 | if (card->dev->type == ARPHRD_IEEE802_TR) | |
2705 | skb_pull(new_skb, TR_HLEN); | |
2706 | else | |
2707 | skb_pull(new_skb, ETH_HLEN); | |
2708 | } | |
2709 | ||
2710 | if (new_skb->protocol == ETH_P_IPV6 && card->vlangrp && | |
2711 | vlan_tx_tag_present(new_skb)) { | |
2712 | skb_push(new_skb, VLAN_HLEN); | |
2713 | skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4); | |
2714 | skb_copy_to_linear_data_offset(new_skb, 4, | |
2715 | new_skb->data + 8, 4); | |
2716 | skb_copy_to_linear_data_offset(new_skb, 8, | |
2717 | new_skb->data + 12, 4); | |
2718 | tag = (u16 *)(new_skb->data + 12); | |
2719 | *tag = __constant_htons(ETH_P_8021Q); | |
2720 | *(tag + 1) = htons(vlan_tx_tag_get(new_skb)); | |
2b4ff112 | 2721 | new_skb->vlan_tci = 0; |
4a71df50 FB |
2722 | } |
2723 | } | |
2724 | ||
2725 | netif_stop_queue(dev); | |
2726 | ||
4a71df50 | 2727 | /* fix hardware limitation: as long as we do not have sbal |
64ef8957 | 2728 | * chaining we can not send long frag lists |
4a71df50 FB |
2729 | */ |
2730 | if ((large_send == QETH_LARGE_SEND_TSO) && | |
64ef8957 FB |
2731 | ((skb_shinfo(new_skb)->nr_frags + 2) > 16)) { |
2732 | if (skb_linearize(new_skb)) | |
2733 | goto tx_drop; | |
2734 | } | |
4a71df50 FB |
2735 | |
2736 | if ((large_send == QETH_LARGE_SEND_TSO) && | |
2737 | (cast_type == RTN_UNSPEC)) { | |
2738 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
2739 | sizeof(struct qeth_hdr_tso)); | |
2740 | memset(hdr, 0, sizeof(struct qeth_hdr_tso)); | |
2741 | qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type); | |
2742 | qeth_tso_fill_header(card, hdr, new_skb); | |
2743 | elements_needed++; | |
2744 | } else { | |
683d718a FB |
2745 | if (data_offset < 0) { |
2746 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
4a71df50 | 2747 | sizeof(struct qeth_hdr)); |
683d718a FB |
2748 | qeth_l3_fill_header(card, hdr, new_skb, ipv, |
2749 | cast_type); | |
2750 | } else { | |
2751 | qeth_l3_fill_header(card, hdr, new_skb, ipv, | |
2752 | cast_type); | |
2753 | hdr->hdr.l3.length = new_skb->len - data_offset; | |
2754 | } | |
4a71df50 FB |
2755 | } |
2756 | ||
64ef8957 | 2757 | elems = qeth_get_elements_no(card, (void *)hdr, new_skb, |
4a71df50 | 2758 | elements_needed); |
64ef8957 FB |
2759 | if (!elems) { |
2760 | if (data_offset >= 0) | |
2761 | kmem_cache_free(qeth_core_header_cache, hdr); | |
2762 | goto tx_drop; | |
f61a0d05 | 2763 | } |
64ef8957 FB |
2764 | elements_needed += elems; |
2765 | nr_frags = skb_shinfo(new_skb)->nr_frags; | |
4a71df50 FB |
2766 | |
2767 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
2768 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, | |
64ef8957 | 2769 | elements_needed); |
4a71df50 FB |
2770 | else |
2771 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, | |
64ef8957 | 2772 | elements_needed, data_offset, 0); |
4a71df50 FB |
2773 | |
2774 | if (!rc) { | |
2775 | card->stats.tx_packets++; | |
2776 | card->stats.tx_bytes += tx_bytes; | |
2777 | if (new_skb != skb) | |
2778 | dev_kfree_skb_any(skb); | |
2779 | if (card->options.performance_stats) { | |
2780 | if (large_send != QETH_LARGE_SEND_NO) { | |
2781 | card->perf_stats.large_send_bytes += tx_bytes; | |
2782 | card->perf_stats.large_send_cnt++; | |
2783 | } | |
64ef8957 | 2784 | if (nr_frags) { |
4a71df50 FB |
2785 | card->perf_stats.sg_skbs_sent++; |
2786 | /* nr_frags + skb->data */ | |
64ef8957 | 2787 | card->perf_stats.sg_frags_sent += nr_frags + 1; |
4a71df50 FB |
2788 | } |
2789 | } | |
4a71df50 | 2790 | } else { |
683d718a FB |
2791 | if (data_offset >= 0) |
2792 | kmem_cache_free(qeth_core_header_cache, hdr); | |
2793 | ||
4a71df50 FB |
2794 | if (rc == -EBUSY) { |
2795 | if (new_skb != skb) | |
2796 | dev_kfree_skb_any(new_skb); | |
2797 | return NETDEV_TX_BUSY; | |
2798 | } else | |
2799 | goto tx_drop; | |
2800 | } | |
2801 | ||
2802 | netif_wake_queue(dev); | |
2803 | if (card->options.performance_stats) | |
2804 | card->perf_stats.outbound_time += qeth_get_micros() - | |
2805 | card->perf_stats.outbound_start_time; | |
2806 | return rc; | |
2807 | ||
2808 | tx_drop: | |
2809 | card->stats.tx_dropped++; | |
2810 | card->stats.tx_errors++; | |
2811 | if ((new_skb != skb) && new_skb) | |
2812 | dev_kfree_skb_any(new_skb); | |
2813 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 2814 | netif_wake_queue(dev); |
4a71df50 FB |
2815 | return NETDEV_TX_OK; |
2816 | } | |
2817 | ||
2818 | static int qeth_l3_open(struct net_device *dev) | |
2819 | { | |
509e2562 | 2820 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 2821 | |
d11ba0c4 | 2822 | QETH_DBF_TEXT(TRACE, 4, "qethopen"); |
4a71df50 FB |
2823 | if (card->state != CARD_STATE_SOFTSETUP) |
2824 | return -ENODEV; | |
2825 | card->data.state = CH_STATE_UP; | |
2826 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
2827 | netif_start_queue(dev); |
2828 | ||
2829 | if (!card->lan_online && netif_carrier_ok(dev)) | |
2830 | netif_carrier_off(dev); | |
2831 | return 0; | |
2832 | } | |
2833 | ||
2834 | static int qeth_l3_stop(struct net_device *dev) | |
2835 | { | |
509e2562 | 2836 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 2837 | |
d11ba0c4 | 2838 | QETH_DBF_TEXT(TRACE, 4, "qethstop"); |
4a71df50 | 2839 | netif_tx_disable(dev); |
4a71df50 FB |
2840 | if (card->state == CARD_STATE_UP) |
2841 | card->state = CARD_STATE_SOFTSETUP; | |
2842 | return 0; | |
2843 | } | |
2844 | ||
2845 | static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev) | |
2846 | { | |
509e2562 | 2847 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
2848 | |
2849 | return (card->options.checksum_type == HW_CHECKSUMMING); | |
2850 | } | |
2851 | ||
2852 | static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data) | |
2853 | { | |
509e2562 | 2854 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
2855 | enum qeth_card_states old_state; |
2856 | enum qeth_checksum_types csum_type; | |
2857 | ||
2858 | if ((card->state != CARD_STATE_UP) && | |
2859 | (card->state != CARD_STATE_DOWN)) | |
2860 | return -EPERM; | |
2861 | ||
2862 | if (data) | |
2863 | csum_type = HW_CHECKSUMMING; | |
2864 | else | |
2865 | csum_type = SW_CHECKSUMMING; | |
2866 | ||
2867 | if (card->options.checksum_type != csum_type) { | |
2868 | old_state = card->state; | |
2869 | if (card->state == CARD_STATE_UP) | |
2870 | __qeth_l3_set_offline(card->gdev, 1); | |
2871 | card->options.checksum_type = csum_type; | |
2872 | if (old_state == CARD_STATE_UP) | |
2873 | __qeth_l3_set_online(card->gdev, 1); | |
2874 | } | |
2875 | return 0; | |
2876 | } | |
2877 | ||
2878 | static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data) | |
2879 | { | |
509e2562 | 2880 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
2881 | |
2882 | if (data) { | |
2883 | if (card->options.large_send == QETH_LARGE_SEND_NO) { | |
2884 | if (card->info.type == QETH_CARD_TYPE_IQD) | |
64ef8957 | 2885 | return -EPERM; |
4a71df50 FB |
2886 | else |
2887 | card->options.large_send = QETH_LARGE_SEND_TSO; | |
2888 | dev->features |= NETIF_F_TSO; | |
2889 | } | |
2890 | } else { | |
2891 | dev->features &= ~NETIF_F_TSO; | |
2892 | card->options.large_send = QETH_LARGE_SEND_NO; | |
2893 | } | |
2894 | return 0; | |
2895 | } | |
2896 | ||
2897 | static struct ethtool_ops qeth_l3_ethtool_ops = { | |
2898 | .get_link = ethtool_op_get_link, | |
2899 | .get_tx_csum = ethtool_op_get_tx_csum, | |
2900 | .set_tx_csum = ethtool_op_set_tx_hw_csum, | |
2901 | .get_rx_csum = qeth_l3_ethtool_get_rx_csum, | |
2902 | .set_rx_csum = qeth_l3_ethtool_set_rx_csum, | |
2903 | .get_sg = ethtool_op_get_sg, | |
2904 | .set_sg = ethtool_op_set_sg, | |
2905 | .get_tso = ethtool_op_get_tso, | |
2906 | .set_tso = qeth_l3_ethtool_set_tso, | |
2907 | .get_strings = qeth_core_get_strings, | |
2908 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
2909 | .get_stats_count = qeth_core_get_stats_count, | |
2910 | .get_drvinfo = qeth_core_get_drvinfo, | |
3f9975aa | 2911 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
2912 | }; |
2913 | ||
2914 | /* | |
2915 | * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting | |
2916 | * NOARP on the netdevice is no option because it also turns off neighbor | |
2917 | * solicitation. For IPv4 we install a neighbor_setup function. We don't want | |
2918 | * arp resolution but we want the hard header (packet socket will work | |
2919 | * e.g. tcpdump) | |
2920 | */ | |
2921 | static int qeth_l3_neigh_setup_noarp(struct neighbour *n) | |
2922 | { | |
2923 | n->nud_state = NUD_NOARP; | |
2924 | memcpy(n->ha, "FAKELL", 6); | |
2925 | n->output = n->ops->connected_output; | |
2926 | return 0; | |
2927 | } | |
2928 | ||
2929 | static int | |
2930 | qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np) | |
2931 | { | |
2932 | if (np->tbl->family == AF_INET) | |
2933 | np->neigh_setup = qeth_l3_neigh_setup_noarp; | |
2934 | ||
2935 | return 0; | |
2936 | } | |
2937 | ||
3d58cefd | 2938 | static const struct net_device_ops qeth_l3_netdev_ops = { |
8403b13c FB |
2939 | .ndo_open = qeth_l3_open, |
2940 | .ndo_stop = qeth_l3_stop, | |
2941 | .ndo_get_stats = qeth_get_stats, | |
2942 | .ndo_start_xmit = qeth_l3_hard_start_xmit, | |
2943 | .ndo_validate_addr = eth_validate_addr, | |
2944 | .ndo_set_multicast_list = qeth_l3_set_multicast_list, | |
2945 | .ndo_do_ioctl = qeth_l3_do_ioctl, | |
2946 | .ndo_change_mtu = qeth_change_mtu, | |
2947 | .ndo_vlan_rx_register = qeth_l3_vlan_rx_register, | |
2948 | .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, | |
2949 | .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, | |
2950 | .ndo_tx_timeout = qeth_tx_timeout, | |
2951 | }; | |
2952 | ||
3d58cefd FB |
2953 | static const struct net_device_ops qeth_l3_osa_netdev_ops = { |
2954 | .ndo_open = qeth_l3_open, | |
2955 | .ndo_stop = qeth_l3_stop, | |
2956 | .ndo_get_stats = qeth_get_stats, | |
2957 | .ndo_start_xmit = qeth_l3_hard_start_xmit, | |
2958 | .ndo_validate_addr = eth_validate_addr, | |
2959 | .ndo_set_multicast_list = qeth_l3_set_multicast_list, | |
2960 | .ndo_do_ioctl = qeth_l3_do_ioctl, | |
2961 | .ndo_change_mtu = qeth_change_mtu, | |
2962 | .ndo_vlan_rx_register = qeth_l3_vlan_rx_register, | |
2963 | .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid, | |
2964 | .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid, | |
2965 | .ndo_tx_timeout = qeth_tx_timeout, | |
2966 | .ndo_neigh_setup = qeth_l3_neigh_setup, | |
2967 | }; | |
2968 | ||
4a71df50 FB |
2969 | static int qeth_l3_setup_netdev(struct qeth_card *card) |
2970 | { | |
2971 | if (card->info.type == QETH_CARD_TYPE_OSAE) { | |
2972 | if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || | |
2973 | (card->info.link_type == QETH_LINK_TYPE_HSTR)) { | |
2974 | #ifdef CONFIG_TR | |
2975 | card->dev = alloc_trdev(0); | |
2976 | #endif | |
2977 | if (!card->dev) | |
2978 | return -ENODEV; | |
3d58cefd | 2979 | card->dev->netdev_ops = &qeth_l3_netdev_ops; |
4a71df50 FB |
2980 | } else { |
2981 | card->dev = alloc_etherdev(0); | |
2982 | if (!card->dev) | |
2983 | return -ENODEV; | |
3d58cefd | 2984 | card->dev->netdev_ops = &qeth_l3_osa_netdev_ops; |
4a71df50 FB |
2985 | |
2986 | /*IPv6 address autoconfiguration stuff*/ | |
2987 | qeth_l3_get_unique_id(card); | |
2988 | if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) | |
2989 | card->dev->dev_id = card->info.unique_id & | |
2990 | 0xffff; | |
2991 | } | |
2992 | } else if (card->info.type == QETH_CARD_TYPE_IQD) { | |
2993 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
2994 | if (!card->dev) | |
2995 | return -ENODEV; | |
2996 | card->dev->flags |= IFF_NOARP; | |
3d58cefd | 2997 | card->dev->netdev_ops = &qeth_l3_netdev_ops; |
4a71df50 FB |
2998 | qeth_l3_iqd_read_initial_mac(card); |
2999 | } else | |
3000 | return -ENODEV; | |
3001 | ||
509e2562 | 3002 | card->dev->ml_priv = card; |
4a71df50 | 3003 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 FB |
3004 | card->dev->mtu = card->info.initial_mtu; |
3005 | SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops); | |
3006 | card->dev->features |= NETIF_F_HW_VLAN_TX | | |
3007 | NETIF_F_HW_VLAN_RX | | |
3008 | NETIF_F_HW_VLAN_FILTER; | |
3009 | ||
3010 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
3011 | return register_netdev(card->dev); | |
3012 | } | |
3013 | ||
3014 | static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev, | |
779e6e1c | 3015 | unsigned int qdio_err, unsigned int queue, int first_element, |
4a71df50 FB |
3016 | int count, unsigned long card_ptr) |
3017 | { | |
3018 | struct net_device *net_dev; | |
3019 | struct qeth_card *card; | |
3020 | struct qeth_qdio_buffer *buffer; | |
3021 | int index; | |
3022 | int i; | |
3023 | ||
4a71df50 FB |
3024 | card = (struct qeth_card *) card_ptr; |
3025 | net_dev = card->dev; | |
3026 | if (card->options.performance_stats) { | |
3027 | card->perf_stats.inbound_cnt++; | |
3028 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
3029 | } | |
779e6e1c JG |
3030 | if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
3031 | QETH_DBF_TEXT(TRACE, 1, "qdinchk"); | |
3032 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
3033 | QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", | |
3034 | first_element, count); | |
3035 | QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); | |
3036 | qeth_schedule_recovery(card); | |
3037 | return; | |
4a71df50 FB |
3038 | } |
3039 | for (i = first_element; i < (first_element + count); ++i) { | |
3040 | index = i % QDIO_MAX_BUFFERS_PER_Q; | |
3041 | buffer = &card->qdio.in_q->bufs[index]; | |
779e6e1c | 3042 | if (!(qdio_err && |
4a71df50 | 3043 | qeth_check_qdio_errors(buffer->buffer, |
779e6e1c | 3044 | qdio_err, "qinerr"))) |
4a71df50 FB |
3045 | qeth_l3_process_inbound_buffer(card, buffer, index); |
3046 | /* clear buffer and give back to hardware */ | |
3047 | qeth_put_buffer_pool_entry(card, buffer->pool_entry); | |
3048 | qeth_queue_input_buffer(card, index); | |
3049 | } | |
3050 | if (card->options.performance_stats) | |
3051 | card->perf_stats.inbound_time += qeth_get_micros() - | |
3052 | card->perf_stats.inbound_start_time; | |
3053 | } | |
3054 | ||
3055 | static int qeth_l3_probe_device(struct ccwgroup_device *gdev) | |
3056 | { | |
3057 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
3058 | ||
3059 | qeth_l3_create_device_attributes(&gdev->dev); | |
3060 | card->options.layer2 = 0; | |
3061 | card->discipline.input_handler = (qdio_handler_t *) | |
3062 | qeth_l3_qdio_input_handler; | |
3063 | card->discipline.output_handler = (qdio_handler_t *) | |
3064 | qeth_qdio_output_handler; | |
3065 | card->discipline.recover = qeth_l3_recover; | |
3066 | return 0; | |
3067 | } | |
3068 | ||
3069 | static void qeth_l3_remove_device(struct ccwgroup_device *cgdev) | |
3070 | { | |
3071 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
3072 | ||
3073 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
3074 | ||
3075 | if (cgdev->state == CCWGROUP_ONLINE) { | |
3076 | card->use_hard_stop = 1; | |
3077 | qeth_l3_set_offline(cgdev); | |
3078 | } | |
3079 | ||
3080 | if (card->dev) { | |
3081 | unregister_netdev(card->dev); | |
3082 | card->dev = NULL; | |
3083 | } | |
3084 | ||
3085 | qeth_l3_remove_device_attributes(&cgdev->dev); | |
3086 | qeth_l3_clear_ip_list(card, 0, 0); | |
3087 | qeth_l3_clear_ipato_list(card); | |
3088 | return; | |
3089 | } | |
3090 | ||
3091 | static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
3092 | { | |
3093 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
3094 | int rc = 0; | |
3095 | enum qeth_card_states recover_flag; | |
3096 | ||
3097 | BUG_ON(!card); | |
d11ba0c4 PT |
3098 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
3099 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
3100 | |
3101 | qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); | |
4a71df50 FB |
3102 | |
3103 | recover_flag = card->state; | |
3104 | rc = ccw_device_set_online(CARD_RDEV(card)); | |
3105 | if (rc) { | |
d11ba0c4 | 3106 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
3107 | return -EIO; |
3108 | } | |
3109 | rc = ccw_device_set_online(CARD_WDEV(card)); | |
3110 | if (rc) { | |
d11ba0c4 | 3111 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
3112 | return -EIO; |
3113 | } | |
3114 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
3115 | if (rc) { | |
d11ba0c4 | 3116 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
3117 | return -EIO; |
3118 | } | |
3119 | ||
3120 | rc = qeth_core_hardsetup_card(card); | |
3121 | if (rc) { | |
d11ba0c4 | 3122 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
3123 | goto out_remove; |
3124 | } | |
3125 | ||
3126 | qeth_l3_query_ipassists(card, QETH_PROT_IPV4); | |
3127 | ||
3128 | if (!card->dev && qeth_l3_setup_netdev(card)) | |
3129 | goto out_remove; | |
3130 | ||
3131 | card->state = CARD_STATE_HARDSETUP; | |
3132 | qeth_print_status_message(card); | |
3133 | ||
3134 | /* softsetup */ | |
d11ba0c4 | 3135 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
3136 | |
3137 | rc = qeth_send_startlan(card); | |
3138 | if (rc) { | |
d11ba0c4 | 3139 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 3140 | if (rc == 0xe080) { |
74eacdb9 FB |
3141 | dev_warn(&card->gdev->dev, |
3142 | "The LAN is offline\n"); | |
4a71df50 FB |
3143 | card->lan_online = 0; |
3144 | } | |
3145 | return rc; | |
3146 | } else | |
3147 | card->lan_online = 1; | |
3148 | qeth_set_large_send(card, card->options.large_send); | |
3149 | ||
3150 | rc = qeth_l3_setadapter_parms(card); | |
3151 | if (rc) | |
d11ba0c4 | 3152 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
3153 | rc = qeth_l3_start_ipassists(card); |
3154 | if (rc) | |
d11ba0c4 | 3155 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
4a71df50 FB |
3156 | rc = qeth_l3_setrouting_v4(card); |
3157 | if (rc) | |
d11ba0c4 | 3158 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
4a71df50 FB |
3159 | rc = qeth_l3_setrouting_v6(card); |
3160 | if (rc) | |
d11ba0c4 | 3161 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
4a71df50 FB |
3162 | netif_tx_disable(card->dev); |
3163 | ||
3164 | rc = qeth_init_qdio_queues(card); | |
3165 | if (rc) { | |
d11ba0c4 | 3166 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
3167 | goto out_remove; |
3168 | } | |
3169 | card->state = CARD_STATE_SOFTSETUP; | |
3170 | netif_carrier_on(card->dev); | |
3171 | ||
3172 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
8af7c5ae FB |
3173 | if (recover_flag == CARD_STATE_RECOVER) { |
3174 | if (recovery_mode) | |
4a71df50 | 3175 | qeth_l3_open(card->dev); |
8af7c5ae FB |
3176 | else { |
3177 | rtnl_lock(); | |
3178 | dev_open(card->dev); | |
3179 | rtnl_unlock(); | |
3180 | } | |
3181 | qeth_l3_set_multicast_list(card->dev); | |
4a71df50 FB |
3182 | } |
3183 | /* let user_space know that device is online */ | |
3184 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
3185 | return 0; | |
3186 | out_remove: | |
3187 | card->use_hard_stop = 1; | |
3188 | qeth_l3_stop_card(card, 0); | |
3189 | ccw_device_set_offline(CARD_DDEV(card)); | |
3190 | ccw_device_set_offline(CARD_WDEV(card)); | |
3191 | ccw_device_set_offline(CARD_RDEV(card)); | |
3192 | if (recover_flag == CARD_STATE_RECOVER) | |
3193 | card->state = CARD_STATE_RECOVER; | |
3194 | else | |
3195 | card->state = CARD_STATE_DOWN; | |
3196 | return -ENODEV; | |
3197 | } | |
3198 | ||
3199 | static int qeth_l3_set_online(struct ccwgroup_device *gdev) | |
3200 | { | |
3201 | return __qeth_l3_set_online(gdev, 0); | |
3202 | } | |
3203 | ||
3204 | static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev, | |
3205 | int recovery_mode) | |
3206 | { | |
3207 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
3208 | int rc = 0, rc2 = 0, rc3 = 0; | |
3209 | enum qeth_card_states recover_flag; | |
3210 | ||
d11ba0c4 PT |
3211 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
3212 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
3213 | |
3214 | if (card->dev && netif_carrier_ok(card->dev)) | |
3215 | netif_carrier_off(card->dev); | |
3216 | recover_flag = card->state; | |
0f5623c9 | 3217 | qeth_l3_stop_card(card, recovery_mode); |
4a71df50 FB |
3218 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
3219 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
3220 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
3221 | if (!rc) | |
3222 | rc = (rc2) ? rc2 : rc3; | |
3223 | if (rc) | |
d11ba0c4 | 3224 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
3225 | if (recover_flag == CARD_STATE_UP) |
3226 | card->state = CARD_STATE_RECOVER; | |
3227 | /* let user_space know that device is offline */ | |
3228 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
3229 | return 0; | |
3230 | } | |
3231 | ||
3232 | static int qeth_l3_set_offline(struct ccwgroup_device *cgdev) | |
3233 | { | |
3234 | return __qeth_l3_set_offline(cgdev, 0); | |
3235 | } | |
3236 | ||
3237 | static int qeth_l3_recover(void *ptr) | |
3238 | { | |
3239 | struct qeth_card *card; | |
3240 | int rc = 0; | |
3241 | ||
3242 | card = (struct qeth_card *) ptr; | |
d11ba0c4 PT |
3243 | QETH_DBF_TEXT(TRACE, 2, "recover1"); |
3244 | QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); | |
4a71df50 FB |
3245 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
3246 | return 0; | |
d11ba0c4 | 3247 | QETH_DBF_TEXT(TRACE, 2, "recover2"); |
74eacdb9 FB |
3248 | dev_warn(&card->gdev->dev, |
3249 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
3250 | card->use_hard_stop = 1; |
3251 | __qeth_l3_set_offline(card->gdev, 1); | |
3252 | rc = __qeth_l3_set_online(card->gdev, 1); | |
3253 | /* don't run another scheduled recovery */ | |
3254 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
3255 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
3256 | if (!rc) | |
74eacdb9 FB |
3257 | dev_info(&card->gdev->dev, |
3258 | "Device successfully recovered!\n"); | |
28a7e4c9 UB |
3259 | else { |
3260 | rtnl_lock(); | |
3261 | dev_close(card->dev); | |
3262 | rtnl_unlock(); | |
74eacdb9 FB |
3263 | dev_warn(&card->gdev->dev, "The qeth device driver " |
3264 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 3265 | } |
4a71df50 FB |
3266 | return 0; |
3267 | } | |
3268 | ||
3269 | static void qeth_l3_shutdown(struct ccwgroup_device *gdev) | |
3270 | { | |
3271 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
3272 | qeth_l3_clear_ip_list(card, 0, 0); | |
3273 | qeth_qdio_clear_card(card, 0); | |
3274 | qeth_clear_qdio_buffers(card); | |
3275 | } | |
3276 | ||
3277 | struct ccwgroup_driver qeth_l3_ccwgroup_driver = { | |
3278 | .probe = qeth_l3_probe_device, | |
3279 | .remove = qeth_l3_remove_device, | |
3280 | .set_online = qeth_l3_set_online, | |
3281 | .set_offline = qeth_l3_set_offline, | |
3282 | .shutdown = qeth_l3_shutdown, | |
3283 | }; | |
3284 | EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver); | |
3285 | ||
3286 | static int qeth_l3_ip_event(struct notifier_block *this, | |
76fef2b6 | 3287 | unsigned long event, void *ptr) |
4a71df50 FB |
3288 | { |
3289 | struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; | |
3290 | struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev; | |
3291 | struct qeth_ipaddr *addr; | |
3292 | struct qeth_card *card; | |
3293 | ||
c346dca1 | 3294 | if (dev_net(dev) != &init_net) |
76fef2b6 DM |
3295 | return NOTIFY_DONE; |
3296 | ||
d11ba0c4 | 3297 | QETH_DBF_TEXT(TRACE, 3, "ipevent"); |
4a71df50 FB |
3298 | card = qeth_l3_get_card_from_dev(dev); |
3299 | if (!card) | |
3300 | return NOTIFY_DONE; | |
3301 | ||
3302 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); | |
3303 | if (addr != NULL) { | |
3304 | addr->u.a4.addr = ifa->ifa_address; | |
3305 | addr->u.a4.mask = ifa->ifa_mask; | |
3306 | addr->type = QETH_IP_TYPE_NORMAL; | |
3307 | } else | |
3308 | goto out; | |
3309 | ||
3310 | switch (event) { | |
3311 | case NETDEV_UP: | |
3312 | if (!qeth_l3_add_ip(card, addr)) | |
3313 | kfree(addr); | |
3314 | break; | |
3315 | case NETDEV_DOWN: | |
3316 | if (!qeth_l3_delete_ip(card, addr)) | |
3317 | kfree(addr); | |
3318 | break; | |
3319 | default: | |
3320 | break; | |
3321 | } | |
3322 | qeth_l3_set_ip_addr_list(card); | |
3323 | out: | |
3324 | return NOTIFY_DONE; | |
3325 | } | |
3326 | ||
3327 | static struct notifier_block qeth_l3_ip_notifier = { | |
3328 | qeth_l3_ip_event, | |
3329 | NULL, | |
3330 | }; | |
3331 | ||
3332 | #ifdef CONFIG_QETH_IPV6 | |
3333 | /** | |
3334 | * IPv6 event handler | |
3335 | */ | |
3336 | static int qeth_l3_ip6_event(struct notifier_block *this, | |
76fef2b6 | 3337 | unsigned long event, void *ptr) |
4a71df50 FB |
3338 | { |
3339 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; | |
3340 | struct net_device *dev = (struct net_device *)ifa->idev->dev; | |
3341 | struct qeth_ipaddr *addr; | |
3342 | struct qeth_card *card; | |
3343 | ||
d11ba0c4 | 3344 | QETH_DBF_TEXT(TRACE, 3, "ip6event"); |
4a71df50 FB |
3345 | |
3346 | card = qeth_l3_get_card_from_dev(dev); | |
3347 | if (!card) | |
3348 | return NOTIFY_DONE; | |
3349 | if (!qeth_is_supported(card, IPA_IPV6)) | |
3350 | return NOTIFY_DONE; | |
3351 | ||
3352 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); | |
3353 | if (addr != NULL) { | |
3354 | memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr)); | |
3355 | addr->u.a6.pfxlen = ifa->prefix_len; | |
3356 | addr->type = QETH_IP_TYPE_NORMAL; | |
3357 | } else | |
3358 | goto out; | |
3359 | ||
3360 | switch (event) { | |
3361 | case NETDEV_UP: | |
3362 | if (!qeth_l3_add_ip(card, addr)) | |
3363 | kfree(addr); | |
3364 | break; | |
3365 | case NETDEV_DOWN: | |
3366 | if (!qeth_l3_delete_ip(card, addr)) | |
3367 | kfree(addr); | |
3368 | break; | |
3369 | default: | |
3370 | break; | |
3371 | } | |
3372 | qeth_l3_set_ip_addr_list(card); | |
3373 | out: | |
3374 | return NOTIFY_DONE; | |
3375 | } | |
3376 | ||
3377 | static struct notifier_block qeth_l3_ip6_notifier = { | |
3378 | qeth_l3_ip6_event, | |
3379 | NULL, | |
3380 | }; | |
3381 | #endif | |
3382 | ||
3383 | static int qeth_l3_register_notifiers(void) | |
3384 | { | |
3385 | int rc; | |
3386 | ||
d11ba0c4 | 3387 | QETH_DBF_TEXT(TRACE, 5, "regnotif"); |
4a71df50 FB |
3388 | rc = register_inetaddr_notifier(&qeth_l3_ip_notifier); |
3389 | if (rc) | |
3390 | return rc; | |
3391 | #ifdef CONFIG_QETH_IPV6 | |
3392 | rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier); | |
3393 | if (rc) { | |
3394 | unregister_inetaddr_notifier(&qeth_l3_ip_notifier); | |
3395 | return rc; | |
3396 | } | |
3397 | #else | |
74eacdb9 | 3398 | pr_warning("There is no IPv6 support for the layer 3 discipline\n"); |
4a71df50 FB |
3399 | #endif |
3400 | return 0; | |
3401 | } | |
3402 | ||
3403 | static void qeth_l3_unregister_notifiers(void) | |
3404 | { | |
3405 | ||
d11ba0c4 | 3406 | QETH_DBF_TEXT(TRACE, 5, "unregnot"); |
4a71df50 FB |
3407 | BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier)); |
3408 | #ifdef CONFIG_QETH_IPV6 | |
3409 | BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier)); | |
3410 | #endif /* QETH_IPV6 */ | |
3411 | } | |
3412 | ||
3413 | static int __init qeth_l3_init(void) | |
3414 | { | |
3415 | int rc = 0; | |
3416 | ||
74eacdb9 | 3417 | pr_info("register layer 3 discipline\n"); |
4a71df50 FB |
3418 | rc = qeth_l3_register_notifiers(); |
3419 | return rc; | |
3420 | } | |
3421 | ||
3422 | static void __exit qeth_l3_exit(void) | |
3423 | { | |
3424 | qeth_l3_unregister_notifiers(); | |
74eacdb9 | 3425 | pr_info("unregister layer 3 discipline\n"); |
4a71df50 FB |
3426 | } |
3427 | ||
3428 | module_init(qeth_l3_init); | |
3429 | module_exit(qeth_l3_exit); | |
3430 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
3431 | MODULE_DESCRIPTION("qeth layer 3 discipline"); | |
3432 | MODULE_LICENSE("GPL"); |