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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
[mirror_ubuntu-focal-kernel.git] / drivers / s390 / net / qeth_l2_main.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright IBM Corp. 2007, 2009
4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
5 * Frank Pavlic <fpavlic@de.ibm.com>,
6 * Thomas Spatzier <tspat@de.ibm.com>,
7 * Frank Blaschka <frank.blaschka@de.ibm.com>
8 */
9
10 #define KMSG_COMPONENT "qeth"
11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/string.h>
16 #include <linux/errno.h>
17 #include <linux/kernel.h>
18 #include <linux/slab.h>
19 #include <linux/etherdevice.h>
20 #include <linux/list.h>
21 #include <linux/hash.h>
22 #include <linux/hashtable.h>
23 #include <asm/setup.h>
24 #include "qeth_core.h"
25 #include "qeth_l2.h"
26
27 static int qeth_l2_set_offline(struct ccwgroup_device *);
28 static int qeth_l2_stop(struct net_device *);
29 static void qeth_bridgeport_query_support(struct qeth_card *card);
30 static void qeth_bridge_state_change(struct qeth_card *card,
31 struct qeth_ipa_cmd *cmd);
32 static void qeth_bridge_host_event(struct qeth_card *card,
33 struct qeth_ipa_cmd *cmd);
34 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card);
35 static void qeth_l2_vnicc_init(struct qeth_card *card);
36 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
37 u32 *timeout);
38
39 static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode)
40 {
41 int rc;
42
43 if (retcode)
44 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
45 switch (retcode) {
46 case IPA_RC_SUCCESS:
47 rc = 0;
48 break;
49 case IPA_RC_L2_UNSUPPORTED_CMD:
50 rc = -EOPNOTSUPP;
51 break;
52 case IPA_RC_L2_ADDR_TABLE_FULL:
53 rc = -ENOSPC;
54 break;
55 case IPA_RC_L2_DUP_MAC:
56 case IPA_RC_L2_DUP_LAYER3_MAC:
57 rc = -EEXIST;
58 break;
59 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
60 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
61 rc = -EPERM;
62 break;
63 case IPA_RC_L2_MAC_NOT_FOUND:
64 rc = -ENOENT;
65 break;
66 case -ENOMEM:
67 rc = -ENOMEM;
68 break;
69 default:
70 rc = -EIO;
71 break;
72 }
73 return rc;
74 }
75
76 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
77 enum qeth_ipa_cmds ipacmd)
78 {
79 struct qeth_ipa_cmd *cmd;
80 struct qeth_cmd_buffer *iob;
81
82 QETH_CARD_TEXT(card, 2, "L2sdmac");
83 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
84 if (!iob)
85 return -ENOMEM;
86 cmd = __ipa_cmd(iob);
87 cmd->data.setdelmac.mac_length = ETH_ALEN;
88 ether_addr_copy(cmd->data.setdelmac.mac, mac);
89 return qeth_setdelmac_makerc(card, qeth_send_ipa_cmd(card, iob,
90 NULL, NULL));
91 }
92
93 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
94 {
95 int rc;
96
97 QETH_CARD_TEXT(card, 2, "L2Setmac");
98 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC);
99 if (rc == 0) {
100 dev_info(&card->gdev->dev,
101 "MAC address %pM successfully registered on device %s\n",
102 mac, card->dev->name);
103 } else {
104 switch (rc) {
105 case -EEXIST:
106 dev_warn(&card->gdev->dev,
107 "MAC address %pM already exists\n", mac);
108 break;
109 case -EPERM:
110 dev_warn(&card->gdev->dev,
111 "MAC address %pM is not authorized\n", mac);
112 break;
113 }
114 }
115 return rc;
116 }
117
118 static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac)
119 {
120 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ?
121 IPA_CMD_SETGMAC : IPA_CMD_SETVMAC;
122 int rc;
123
124 QETH_CARD_TEXT(card, 2, "L2Wmac");
125 rc = qeth_l2_send_setdelmac(card, mac, cmd);
126 if (rc == -EEXIST)
127 QETH_DBF_MESSAGE(2, "MAC already registered on device %x\n",
128 CARD_DEVID(card));
129 else if (rc)
130 QETH_DBF_MESSAGE(2, "Failed to register MAC on device %x: %d\n",
131 CARD_DEVID(card), rc);
132 return rc;
133 }
134
135 static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac)
136 {
137 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ?
138 IPA_CMD_DELGMAC : IPA_CMD_DELVMAC;
139 int rc;
140
141 QETH_CARD_TEXT(card, 2, "L2Rmac");
142 rc = qeth_l2_send_setdelmac(card, mac, cmd);
143 if (rc)
144 QETH_DBF_MESSAGE(2, "Failed to delete MAC on device %u: %d\n",
145 CARD_DEVID(card), rc);
146 return rc;
147 }
148
149 static void qeth_l2_del_all_macs(struct qeth_card *card)
150 {
151 struct qeth_mac *mac;
152 struct hlist_node *tmp;
153 int i;
154
155 spin_lock_bh(&card->mclock);
156 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
157 hash_del(&mac->hnode);
158 kfree(mac);
159 }
160 spin_unlock_bh(&card->mclock);
161 }
162
163 static int qeth_l2_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
164 {
165 if (card->info.type == QETH_CARD_TYPE_OSN)
166 return RTN_UNICAST;
167 if (is_broadcast_ether_addr(skb->data))
168 return RTN_BROADCAST;
169 if (is_multicast_ether_addr(skb->data))
170 return RTN_MULTICAST;
171 return RTN_UNICAST;
172 }
173
174 static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
175 struct sk_buff *skb, int ipv, int cast_type,
176 unsigned int data_len)
177 {
178 struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
179
180 hdr->hdr.l2.pkt_length = data_len;
181
182 if (skb_is_gso(skb)) {
183 hdr->hdr.l2.id = QETH_HEADER_TYPE_L2_TSO;
184 } else {
185 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
186 if (skb->ip_summed == CHECKSUM_PARTIAL) {
187 qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], ipv);
188 if (card->options.performance_stats)
189 card->perf_stats.tx_csum++;
190 }
191 }
192
193 /* set byte byte 3 to casting flags */
194 if (cast_type == RTN_MULTICAST)
195 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
196 else if (cast_type == RTN_BROADCAST)
197 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
198 else
199 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
200
201 /* VSWITCH relies on the VLAN
202 * information to be present in
203 * the QDIO header */
204 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
205 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
206 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
207 }
208 }
209
210 static int qeth_setdelvlan_makerc(struct qeth_card *card, int retcode)
211 {
212 if (retcode)
213 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
214
215 switch (retcode) {
216 case IPA_RC_SUCCESS:
217 return 0;
218 case IPA_RC_L2_INVALID_VLAN_ID:
219 return -EINVAL;
220 case IPA_RC_L2_DUP_VLAN_ID:
221 return -EEXIST;
222 case IPA_RC_L2_VLAN_ID_NOT_FOUND:
223 return -ENOENT;
224 case IPA_RC_L2_VLAN_ID_NOT_ALLOWED:
225 return -EPERM;
226 case -ENOMEM:
227 return -ENOMEM;
228 default:
229 return -EIO;
230 }
231 }
232
233 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
234 struct qeth_reply *reply,
235 unsigned long data)
236 {
237 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
238
239 QETH_CARD_TEXT(card, 2, "L2sdvcb");
240 if (cmd->hdr.return_code) {
241 QETH_DBF_MESSAGE(2, "Error in processing VLAN %u on device %x: %#x.\n",
242 cmd->data.setdelvlan.vlan_id,
243 CARD_DEVID(card), cmd->hdr.return_code);
244 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
245 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
246 }
247 return 0;
248 }
249
250 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
251 enum qeth_ipa_cmds ipacmd)
252 {
253 struct qeth_ipa_cmd *cmd;
254 struct qeth_cmd_buffer *iob;
255
256 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
257 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
258 if (!iob)
259 return -ENOMEM;
260 cmd = __ipa_cmd(iob);
261 cmd->data.setdelvlan.vlan_id = i;
262 return qeth_setdelvlan_makerc(card, qeth_send_ipa_cmd(card, iob,
263 qeth_l2_send_setdelvlan_cb, NULL));
264 }
265
266 static void qeth_l2_process_vlans(struct qeth_card *card)
267 {
268 struct qeth_vlan_vid *id;
269
270 QETH_CARD_TEXT(card, 3, "L2prcvln");
271 mutex_lock(&card->vid_list_mutex);
272 list_for_each_entry(id, &card->vid_list, list) {
273 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
274 }
275 mutex_unlock(&card->vid_list_mutex);
276 }
277
278 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
279 __be16 proto, u16 vid)
280 {
281 struct qeth_card *card = dev->ml_priv;
282 struct qeth_vlan_vid *id;
283 int rc;
284
285 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
286 if (!vid)
287 return 0;
288 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
289 QETH_CARD_TEXT(card, 3, "aidREC");
290 return 0;
291 }
292 id = kmalloc(sizeof(*id), GFP_KERNEL);
293 if (id) {
294 id->vid = vid;
295 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
296 if (rc) {
297 kfree(id);
298 return rc;
299 }
300 mutex_lock(&card->vid_list_mutex);
301 list_add_tail(&id->list, &card->vid_list);
302 mutex_unlock(&card->vid_list_mutex);
303 } else {
304 return -ENOMEM;
305 }
306 return 0;
307 }
308
309 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
310 __be16 proto, u16 vid)
311 {
312 struct qeth_vlan_vid *id, *tmpid = NULL;
313 struct qeth_card *card = dev->ml_priv;
314 int rc = 0;
315
316 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
317 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
318 QETH_CARD_TEXT(card, 3, "kidREC");
319 return 0;
320 }
321 mutex_lock(&card->vid_list_mutex);
322 list_for_each_entry(id, &card->vid_list, list) {
323 if (id->vid == vid) {
324 list_del(&id->list);
325 tmpid = id;
326 break;
327 }
328 }
329 mutex_unlock(&card->vid_list_mutex);
330 if (tmpid) {
331 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
332 kfree(tmpid);
333 }
334 return rc;
335 }
336
337 static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
338 {
339 QETH_DBF_TEXT(SETUP , 2, "stopcard");
340 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
341
342 qeth_set_allowed_threads(card, 0, 1);
343 if (card->read.state == CH_STATE_UP &&
344 card->write.state == CH_STATE_UP &&
345 (card->state == CARD_STATE_UP)) {
346 if (recovery_mode &&
347 card->info.type != QETH_CARD_TYPE_OSN) {
348 qeth_l2_stop(card->dev);
349 } else {
350 rtnl_lock();
351 dev_close(card->dev);
352 rtnl_unlock();
353 }
354 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
355 card->state = CARD_STATE_SOFTSETUP;
356 }
357 if (card->state == CARD_STATE_SOFTSETUP) {
358 qeth_l2_del_all_macs(card);
359 qeth_clear_ipacmd_list(card);
360 card->state = CARD_STATE_HARDSETUP;
361 }
362 if (card->state == CARD_STATE_HARDSETUP) {
363 qeth_qdio_clear_card(card, 0);
364 qeth_clear_qdio_buffers(card);
365 qeth_clear_working_pool_list(card);
366 card->state = CARD_STATE_DOWN;
367 }
368 if (card->state == CARD_STATE_DOWN) {
369 qeth_clear_cmd_buffers(&card->read);
370 qeth_clear_cmd_buffers(&card->write);
371 }
372 }
373
374 static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
375 int budget, int *done)
376 {
377 int work_done = 0;
378 struct sk_buff *skb;
379 struct qeth_hdr *hdr;
380 unsigned int len;
381
382 *done = 0;
383 WARN_ON_ONCE(!budget);
384 while (budget) {
385 skb = qeth_core_get_next_skb(card,
386 &card->qdio.in_q->bufs[card->rx.b_index],
387 &card->rx.b_element, &card->rx.e_offset, &hdr);
388 if (!skb) {
389 *done = 1;
390 break;
391 }
392 switch (hdr->hdr.l2.id) {
393 case QETH_HEADER_TYPE_LAYER2:
394 skb->protocol = eth_type_trans(skb, skb->dev);
395 qeth_rx_csum(card, skb, hdr->hdr.l2.flags[1]);
396 if (skb->protocol == htons(ETH_P_802_2))
397 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
398 len = skb->len;
399 napi_gro_receive(&card->napi, skb);
400 break;
401 case QETH_HEADER_TYPE_OSN:
402 if (card->info.type == QETH_CARD_TYPE_OSN) {
403 skb_push(skb, sizeof(struct qeth_hdr));
404 skb_copy_to_linear_data(skb, hdr,
405 sizeof(struct qeth_hdr));
406 len = skb->len;
407 card->osn_info.data_cb(skb);
408 break;
409 }
410 /* else unknown */
411 default:
412 dev_kfree_skb_any(skb);
413 QETH_CARD_TEXT(card, 3, "inbunkno");
414 QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr));
415 continue;
416 }
417 work_done++;
418 budget--;
419 card->stats.rx_packets++;
420 card->stats.rx_bytes += len;
421 }
422 return work_done;
423 }
424
425 static int qeth_l2_request_initial_mac(struct qeth_card *card)
426 {
427 int rc = 0;
428
429 QETH_DBF_TEXT(SETUP, 2, "l2reqmac");
430 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
431
432 if (MACHINE_IS_VM) {
433 rc = qeth_vm_request_mac(card);
434 if (!rc)
435 goto out;
436 QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n",
437 CARD_DEVID(card), rc);
438 QETH_DBF_TEXT_(SETUP, 2, "err%04x", rc);
439 /* fall back to alternative mechanism: */
440 }
441
442 if (!IS_OSN(card)) {
443 rc = qeth_setadpparms_change_macaddr(card);
444 if (!rc && is_valid_ether_addr(card->dev->dev_addr))
445 goto out;
446 QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n",
447 CARD_DEVID(card), rc);
448 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
449 /* fall back once more: */
450 }
451
452 /* some devices don't support a custom MAC address: */
453 if (card->info.type == QETH_CARD_TYPE_OSM ||
454 card->info.type == QETH_CARD_TYPE_OSX)
455 return (rc) ? rc : -EADDRNOTAVAIL;
456 eth_hw_addr_random(card->dev);
457
458 out:
459 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, card->dev->addr_len);
460 return 0;
461 }
462
463 static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
464 {
465 struct sockaddr *addr = p;
466 struct qeth_card *card = dev->ml_priv;
467 u8 old_addr[ETH_ALEN];
468 int rc = 0;
469
470 QETH_CARD_TEXT(card, 3, "setmac");
471
472 if (card->info.type == QETH_CARD_TYPE_OSN ||
473 card->info.type == QETH_CARD_TYPE_OSM ||
474 card->info.type == QETH_CARD_TYPE_OSX) {
475 QETH_CARD_TEXT(card, 3, "setmcTYP");
476 return -EOPNOTSUPP;
477 }
478 QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN);
479 if (!is_valid_ether_addr(addr->sa_data))
480 return -EADDRNOTAVAIL;
481
482 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
483 QETH_CARD_TEXT(card, 3, "setmcREC");
484 return -ERESTARTSYS;
485 }
486
487 /* avoid racing against concurrent state change: */
488 if (!mutex_trylock(&card->conf_mutex))
489 return -EAGAIN;
490
491 if (!qeth_card_hw_is_reachable(card)) {
492 ether_addr_copy(dev->dev_addr, addr->sa_data);
493 goto out_unlock;
494 }
495
496 /* don't register the same address twice */
497 if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) &&
498 (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
499 goto out_unlock;
500
501 /* add the new address, switch over, drop the old */
502 rc = qeth_l2_send_setmac(card, addr->sa_data);
503 if (rc)
504 goto out_unlock;
505 ether_addr_copy(old_addr, dev->dev_addr);
506 ether_addr_copy(dev->dev_addr, addr->sa_data);
507
508 if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)
509 qeth_l2_remove_mac(card, old_addr);
510 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
511
512 out_unlock:
513 mutex_unlock(&card->conf_mutex);
514 return rc;
515 }
516
517 static void qeth_promisc_to_bridge(struct qeth_card *card)
518 {
519 struct net_device *dev = card->dev;
520 enum qeth_ipa_promisc_modes promisc_mode;
521 int role;
522 int rc;
523
524 QETH_CARD_TEXT(card, 3, "pmisc2br");
525
526 if (!card->options.sbp.reflect_promisc)
527 return;
528 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
529 : SET_PROMISC_MODE_OFF;
530 if (promisc_mode == card->info.promisc_mode)
531 return;
532
533 if (promisc_mode == SET_PROMISC_MODE_ON) {
534 if (card->options.sbp.reflect_promisc_primary)
535 role = QETH_SBP_ROLE_PRIMARY;
536 else
537 role = QETH_SBP_ROLE_SECONDARY;
538 } else
539 role = QETH_SBP_ROLE_NONE;
540
541 rc = qeth_bridgeport_setrole(card, role);
542 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
543 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
544 if (!rc) {
545 card->options.sbp.role = role;
546 card->info.promisc_mode = promisc_mode;
547 }
548
549 }
550 /* New MAC address is added to the hash table and marked to be written on card
551 * only if there is not in the hash table storage already
552 *
553 */
554 static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha)
555 {
556 u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2]));
557 struct qeth_mac *mac;
558
559 hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) {
560 if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) {
561 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
562 return;
563 }
564 }
565
566 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
567 if (!mac)
568 return;
569
570 ether_addr_copy(mac->mac_addr, ha->addr);
571 mac->disp_flag = QETH_DISP_ADDR_ADD;
572
573 hash_add(card->mac_htable, &mac->hnode, mac_hash);
574 }
575
576 static void qeth_l2_set_rx_mode(struct net_device *dev)
577 {
578 struct qeth_card *card = dev->ml_priv;
579 struct netdev_hw_addr *ha;
580 struct qeth_mac *mac;
581 struct hlist_node *tmp;
582 int i;
583 int rc;
584
585 if (card->info.type == QETH_CARD_TYPE_OSN)
586 return;
587
588 QETH_CARD_TEXT(card, 3, "setmulti");
589 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
590 (card->state != CARD_STATE_UP))
591 return;
592
593 spin_lock_bh(&card->mclock);
594
595 netdev_for_each_mc_addr(ha, dev)
596 qeth_l2_add_mac(card, ha);
597 netdev_for_each_uc_addr(ha, dev)
598 qeth_l2_add_mac(card, ha);
599
600 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
601 switch (mac->disp_flag) {
602 case QETH_DISP_ADDR_DELETE:
603 qeth_l2_remove_mac(card, mac->mac_addr);
604 hash_del(&mac->hnode);
605 kfree(mac);
606 break;
607 case QETH_DISP_ADDR_ADD:
608 rc = qeth_l2_write_mac(card, mac->mac_addr);
609 if (rc) {
610 hash_del(&mac->hnode);
611 kfree(mac);
612 break;
613 }
614 /* fall through */
615 default:
616 /* for next call to set_rx_mode(): */
617 mac->disp_flag = QETH_DISP_ADDR_DELETE;
618 }
619 }
620
621 spin_unlock_bh(&card->mclock);
622
623 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
624 qeth_setadp_promisc_mode(card);
625 else
626 qeth_promisc_to_bridge(card);
627 }
628
629 static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb,
630 struct qeth_qdio_out_q *queue)
631 {
632 struct qeth_hdr *hdr = (struct qeth_hdr *)skb->data;
633 addr_t end = (addr_t)(skb->data + sizeof(*hdr));
634 addr_t start = (addr_t)skb->data;
635 unsigned int elements = 0;
636 unsigned int hd_len = 0;
637 int rc;
638
639 if (skb->protocol == htons(ETH_P_IPV6))
640 return -EPROTONOSUPPORT;
641
642 if (qeth_get_elements_for_range(start, end) > 1) {
643 /* Misaligned HW header, move it to its own buffer element. */
644 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
645 if (!hdr)
646 return -ENOMEM;
647 hd_len = sizeof(*hdr);
648 skb_copy_from_linear_data(skb, (char *)hdr, hd_len);
649 elements++;
650 }
651
652 elements += qeth_count_elements(skb, hd_len);
653 if (elements > QETH_MAX_BUFFER_ELEMENTS(card)) {
654 rc = -E2BIG;
655 goto out;
656 }
657
658 rc = qeth_do_send_packet(card, queue, skb, hdr, hd_len, hd_len,
659 elements);
660 out:
661 if (rc && hd_len)
662 kmem_cache_free(qeth_core_header_cache, hdr);
663 return rc;
664 }
665
666 static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
667 struct net_device *dev)
668 {
669 struct qeth_card *card = dev->ml_priv;
670 int cast_type = qeth_l2_get_cast_type(card, skb);
671 int ipv = qeth_get_ip_version(skb);
672 struct qeth_qdio_out_q *queue;
673 int tx_bytes = skb->len;
674 int rc;
675
676 if (card->state != CARD_STATE_UP) {
677 card->stats.tx_carrier_errors++;
678 goto tx_drop;
679 }
680
681 queue = qeth_get_tx_queue(card, skb, ipv, cast_type);
682
683 if (card->options.performance_stats) {
684 card->perf_stats.outbound_cnt++;
685 card->perf_stats.outbound_start_time = qeth_get_micros();
686 }
687 netif_stop_queue(dev);
688
689 if (IS_OSN(card))
690 rc = qeth_l2_xmit_osn(card, skb, queue);
691 else
692 rc = qeth_xmit(card, skb, queue, ipv, cast_type,
693 qeth_l2_fill_header);
694
695 if (!rc) {
696 card->stats.tx_packets++;
697 card->stats.tx_bytes += tx_bytes;
698 if (card->options.performance_stats)
699 card->perf_stats.outbound_time += qeth_get_micros() -
700 card->perf_stats.outbound_start_time;
701 netif_wake_queue(dev);
702 return NETDEV_TX_OK;
703 } else if (rc == -EBUSY) {
704 return NETDEV_TX_BUSY;
705 } /* else fall through */
706
707 tx_drop:
708 card->stats.tx_dropped++;
709 card->stats.tx_errors++;
710 dev_kfree_skb_any(skb);
711 netif_wake_queue(dev);
712 return NETDEV_TX_OK;
713 }
714
715 static int __qeth_l2_open(struct net_device *dev)
716 {
717 struct qeth_card *card = dev->ml_priv;
718 int rc = 0;
719
720 QETH_CARD_TEXT(card, 4, "qethopen");
721 if (card->state == CARD_STATE_UP)
722 return rc;
723 if (card->state != CARD_STATE_SOFTSETUP)
724 return -ENODEV;
725
726 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
727 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
728 QETH_CARD_TEXT(card, 4, "nomacadr");
729 return -EPERM;
730 }
731 card->data.state = CH_STATE_UP;
732 card->state = CARD_STATE_UP;
733 netif_start_queue(dev);
734
735 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
736 napi_enable(&card->napi);
737 local_bh_disable();
738 napi_schedule(&card->napi);
739 /* kick-start the NAPI softirq: */
740 local_bh_enable();
741 } else
742 rc = -EIO;
743 return rc;
744 }
745
746 static int qeth_l2_open(struct net_device *dev)
747 {
748 struct qeth_card *card = dev->ml_priv;
749
750 QETH_CARD_TEXT(card, 5, "qethope_");
751 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
752 QETH_CARD_TEXT(card, 3, "openREC");
753 return -ERESTARTSYS;
754 }
755 return __qeth_l2_open(dev);
756 }
757
758 static int qeth_l2_stop(struct net_device *dev)
759 {
760 struct qeth_card *card = dev->ml_priv;
761
762 QETH_CARD_TEXT(card, 4, "qethstop");
763 netif_tx_disable(dev);
764 if (card->state == CARD_STATE_UP) {
765 card->state = CARD_STATE_SOFTSETUP;
766 napi_disable(&card->napi);
767 }
768 return 0;
769 }
770
771 static const struct device_type qeth_l2_devtype = {
772 .name = "qeth_layer2",
773 .groups = qeth_l2_attr_groups,
774 };
775
776 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
777 {
778 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
779 int rc;
780
781 if (gdev->dev.type == &qeth_generic_devtype) {
782 rc = qeth_l2_create_device_attributes(&gdev->dev);
783 if (rc)
784 return rc;
785 }
786 INIT_LIST_HEAD(&card->vid_list);
787 hash_init(card->mac_htable);
788 card->info.hwtrap = 0;
789 qeth_l2_vnicc_set_defaults(card);
790 return 0;
791 }
792
793 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
794 {
795 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
796
797 if (cgdev->dev.type == &qeth_generic_devtype)
798 qeth_l2_remove_device_attributes(&cgdev->dev);
799 qeth_set_allowed_threads(card, 0, 1);
800 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
801
802 if (cgdev->state == CCWGROUP_ONLINE)
803 qeth_l2_set_offline(cgdev);
804 if (qeth_netdev_is_registered(card->dev))
805 unregister_netdev(card->dev);
806 }
807
808 static const struct ethtool_ops qeth_l2_ethtool_ops = {
809 .get_link = ethtool_op_get_link,
810 .get_strings = qeth_core_get_strings,
811 .get_ethtool_stats = qeth_core_get_ethtool_stats,
812 .get_sset_count = qeth_core_get_sset_count,
813 .get_drvinfo = qeth_core_get_drvinfo,
814 .get_link_ksettings = qeth_core_ethtool_get_link_ksettings,
815 };
816
817 static const struct ethtool_ops qeth_l2_osn_ops = {
818 .get_strings = qeth_core_get_strings,
819 .get_ethtool_stats = qeth_core_get_ethtool_stats,
820 .get_sset_count = qeth_core_get_sset_count,
821 .get_drvinfo = qeth_core_get_drvinfo,
822 };
823
824 static const struct net_device_ops qeth_l2_netdev_ops = {
825 .ndo_open = qeth_l2_open,
826 .ndo_stop = qeth_l2_stop,
827 .ndo_get_stats = qeth_get_stats,
828 .ndo_start_xmit = qeth_l2_hard_start_xmit,
829 .ndo_features_check = qeth_features_check,
830 .ndo_validate_addr = eth_validate_addr,
831 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
832 .ndo_do_ioctl = qeth_do_ioctl,
833 .ndo_set_mac_address = qeth_l2_set_mac_address,
834 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
835 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
836 .ndo_tx_timeout = qeth_tx_timeout,
837 .ndo_fix_features = qeth_fix_features,
838 .ndo_set_features = qeth_set_features
839 };
840
841 static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok)
842 {
843 int rc;
844
845 if (qeth_netdev_is_registered(card->dev))
846 return 0;
847
848 card->dev->priv_flags |= IFF_UNICAST_FLT;
849 card->dev->netdev_ops = &qeth_l2_netdev_ops;
850 if (card->info.type == QETH_CARD_TYPE_OSN) {
851 card->dev->ethtool_ops = &qeth_l2_osn_ops;
852 card->dev->flags |= IFF_NOARP;
853 } else {
854 card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
855 card->dev->needed_headroom = sizeof(struct qeth_hdr);
856 }
857
858 if (card->info.type == QETH_CARD_TYPE_OSM)
859 card->dev->features |= NETIF_F_VLAN_CHALLENGED;
860 else
861 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
862
863 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
864 card->dev->features |= NETIF_F_SG;
865 /* OSA 3S and earlier has no RX/TX support */
866 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) {
867 card->dev->hw_features |= NETIF_F_IP_CSUM;
868 card->dev->vlan_features |= NETIF_F_IP_CSUM;
869 }
870 }
871 if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) {
872 card->dev->hw_features |= NETIF_F_IPV6_CSUM;
873 card->dev->vlan_features |= NETIF_F_IPV6_CSUM;
874 }
875 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM) ||
876 qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) {
877 card->dev->hw_features |= NETIF_F_RXCSUM;
878 card->dev->vlan_features |= NETIF_F_RXCSUM;
879 }
880 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
881 card->dev->hw_features |= NETIF_F_TSO;
882 card->dev->vlan_features |= NETIF_F_TSO;
883 }
884 if (qeth_is_supported6(card, IPA_OUTBOUND_TSO)) {
885 card->dev->hw_features |= NETIF_F_TSO6;
886 card->dev->vlan_features |= NETIF_F_TSO6;
887 }
888
889 if (card->dev->hw_features & (NETIF_F_TSO | NETIF_F_TSO6)) {
890 card->dev->needed_headroom = sizeof(struct qeth_hdr_tso);
891 netif_set_gso_max_size(card->dev,
892 PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1));
893 }
894
895 if (!is_valid_ether_addr(card->dev->dev_addr))
896 qeth_l2_request_initial_mac(card);
897 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
898 rc = register_netdev(card->dev);
899 if (!rc && carrier_ok)
900 netif_carrier_on(card->dev);
901
902 if (rc)
903 card->dev->netdev_ops = NULL;
904 return rc;
905 }
906
907 static int qeth_l2_start_ipassists(struct qeth_card *card)
908 {
909 /* configure isolation level */
910 if (qeth_set_access_ctrl_online(card, 0))
911 return -ENODEV;
912 return 0;
913 }
914
915 static void qeth_l2_trace_features(struct qeth_card *card)
916 {
917 /* Set BridgePort features */
918 QETH_CARD_TEXT(card, 2, "featuSBP");
919 QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs,
920 sizeof(card->options.sbp.supported_funcs));
921 /* VNIC Characteristics features */
922 QETH_CARD_TEXT(card, 2, "feaVNICC");
923 QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars,
924 sizeof(card->options.vnicc.sup_chars));
925 }
926
927 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
928 {
929 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
930 int rc = 0;
931 enum qeth_card_states recover_flag;
932 bool carrier_ok;
933
934 mutex_lock(&card->discipline_mutex);
935 mutex_lock(&card->conf_mutex);
936 QETH_DBF_TEXT(SETUP, 2, "setonlin");
937 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
938
939 recover_flag = card->state;
940 rc = qeth_core_hardsetup_card(card, &carrier_ok);
941 if (rc) {
942 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
943 rc = -ENODEV;
944 goto out_remove;
945 }
946 qeth_bridgeport_query_support(card);
947 if (card->options.sbp.supported_funcs)
948 dev_info(&card->gdev->dev,
949 "The device represents a Bridge Capable Port\n");
950
951 rc = qeth_l2_setup_netdev(card, carrier_ok);
952 if (rc)
953 goto out_remove;
954
955 if (card->info.type != QETH_CARD_TYPE_OSN &&
956 !qeth_l2_send_setmac(card, card->dev->dev_addr))
957 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
958
959 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
960 if (card->info.hwtrap &&
961 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
962 card->info.hwtrap = 0;
963 } else
964 card->info.hwtrap = 0;
965
966 /* for the rx_bcast characteristic, init VNICC after setmac */
967 qeth_l2_vnicc_init(card);
968
969 qeth_trace_features(card);
970 qeth_l2_trace_features(card);
971
972 qeth_l2_setup_bridgeport_attrs(card);
973
974 card->state = CARD_STATE_HARDSETUP;
975 qeth_print_status_message(card);
976
977 /* softsetup */
978 QETH_DBF_TEXT(SETUP, 2, "softsetp");
979
980 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
981 (card->info.type == QETH_CARD_TYPE_OSX)) {
982 rc = qeth_l2_start_ipassists(card);
983 if (rc)
984 goto out_remove;
985 }
986
987 if (card->info.type != QETH_CARD_TYPE_OSN)
988 qeth_l2_process_vlans(card);
989
990 netif_tx_disable(card->dev);
991
992 rc = qeth_init_qdio_queues(card);
993 if (rc) {
994 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
995 rc = -ENODEV;
996 goto out_remove;
997 }
998 card->state = CARD_STATE_SOFTSETUP;
999
1000 qeth_set_allowed_threads(card, 0xffffffff, 0);
1001
1002 qeth_enable_hw_features(card->dev);
1003 if (recover_flag == CARD_STATE_RECOVER) {
1004 if (recovery_mode &&
1005 card->info.type != QETH_CARD_TYPE_OSN) {
1006 __qeth_l2_open(card->dev);
1007 qeth_l2_set_rx_mode(card->dev);
1008 } else {
1009 rtnl_lock();
1010 dev_open(card->dev, NULL);
1011 rtnl_unlock();
1012 }
1013 }
1014 /* let user_space know that device is online */
1015 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
1016 mutex_unlock(&card->conf_mutex);
1017 mutex_unlock(&card->discipline_mutex);
1018 return 0;
1019
1020 out_remove:
1021 qeth_l2_stop_card(card, 0);
1022 ccw_device_set_offline(CARD_DDEV(card));
1023 ccw_device_set_offline(CARD_WDEV(card));
1024 ccw_device_set_offline(CARD_RDEV(card));
1025 qdio_free(CARD_DDEV(card));
1026 if (recover_flag == CARD_STATE_RECOVER)
1027 card->state = CARD_STATE_RECOVER;
1028 else
1029 card->state = CARD_STATE_DOWN;
1030 mutex_unlock(&card->conf_mutex);
1031 mutex_unlock(&card->discipline_mutex);
1032 return rc;
1033 }
1034
1035 static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1036 {
1037 return __qeth_l2_set_online(gdev, 0);
1038 }
1039
1040 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1041 int recovery_mode)
1042 {
1043 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1044 int rc = 0, rc2 = 0, rc3 = 0;
1045 enum qeth_card_states recover_flag;
1046
1047 mutex_lock(&card->discipline_mutex);
1048 mutex_lock(&card->conf_mutex);
1049 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1050 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
1051
1052 netif_carrier_off(card->dev);
1053 recover_flag = card->state;
1054 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1055 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1056 card->info.hwtrap = 1;
1057 }
1058 qeth_l2_stop_card(card, recovery_mode);
1059 rc = ccw_device_set_offline(CARD_DDEV(card));
1060 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1061 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1062 if (!rc)
1063 rc = (rc2) ? rc2 : rc3;
1064 if (rc)
1065 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1066 qdio_free(CARD_DDEV(card));
1067 if (recover_flag == CARD_STATE_UP)
1068 card->state = CARD_STATE_RECOVER;
1069 /* let user_space know that device is offline */
1070 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
1071 mutex_unlock(&card->conf_mutex);
1072 mutex_unlock(&card->discipline_mutex);
1073 return 0;
1074 }
1075
1076 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1077 {
1078 return __qeth_l2_set_offline(cgdev, 0);
1079 }
1080
1081 static int qeth_l2_recover(void *ptr)
1082 {
1083 struct qeth_card *card;
1084 int rc = 0;
1085
1086 card = (struct qeth_card *) ptr;
1087 QETH_CARD_TEXT(card, 2, "recover1");
1088 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1089 return 0;
1090 QETH_CARD_TEXT(card, 2, "recover2");
1091 dev_warn(&card->gdev->dev,
1092 "A recovery process has been started for the device\n");
1093 qeth_set_recovery_task(card);
1094 __qeth_l2_set_offline(card->gdev, 1);
1095 rc = __qeth_l2_set_online(card->gdev, 1);
1096 if (!rc)
1097 dev_info(&card->gdev->dev,
1098 "Device successfully recovered!\n");
1099 else {
1100 qeth_close_dev(card);
1101 dev_warn(&card->gdev->dev, "The qeth device driver "
1102 "failed to recover an error on the device\n");
1103 }
1104 qeth_clear_recovery_task(card);
1105 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1106 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1107 return 0;
1108 }
1109
1110 static int __init qeth_l2_init(void)
1111 {
1112 pr_info("register layer 2 discipline\n");
1113 return 0;
1114 }
1115
1116 static void __exit qeth_l2_exit(void)
1117 {
1118 pr_info("unregister layer 2 discipline\n");
1119 }
1120
1121 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1122 {
1123 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1124
1125 netif_device_detach(card->dev);
1126 qeth_set_allowed_threads(card, 0, 1);
1127 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1128 if (gdev->state == CCWGROUP_OFFLINE)
1129 return 0;
1130 if (card->state == CARD_STATE_UP) {
1131 if (card->info.hwtrap)
1132 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1133 __qeth_l2_set_offline(card->gdev, 1);
1134 } else
1135 __qeth_l2_set_offline(card->gdev, 0);
1136 return 0;
1137 }
1138
1139 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1140 {
1141 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1142 int rc = 0;
1143
1144 if (card->state == CARD_STATE_RECOVER) {
1145 rc = __qeth_l2_set_online(card->gdev, 1);
1146 if (rc) {
1147 rtnl_lock();
1148 dev_close(card->dev);
1149 rtnl_unlock();
1150 }
1151 } else
1152 rc = __qeth_l2_set_online(card->gdev, 0);
1153
1154 qeth_set_allowed_threads(card, 0xffffffff, 0);
1155 netif_device_attach(card->dev);
1156 if (rc)
1157 dev_warn(&card->gdev->dev, "The qeth device driver "
1158 "failed to recover an error on the device\n");
1159 return rc;
1160 }
1161
1162 /* Returns zero if the command is successfully "consumed" */
1163 static int qeth_l2_control_event(struct qeth_card *card,
1164 struct qeth_ipa_cmd *cmd)
1165 {
1166 switch (cmd->hdr.command) {
1167 case IPA_CMD_SETBRIDGEPORT_OSA:
1168 case IPA_CMD_SETBRIDGEPORT_IQD:
1169 if (cmd->data.sbp.hdr.command_code ==
1170 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1171 qeth_bridge_state_change(card, cmd);
1172 return 0;
1173 } else
1174 return 1;
1175 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1176 qeth_bridge_host_event(card, cmd);
1177 return 0;
1178 default:
1179 return 1;
1180 }
1181 }
1182
1183 struct qeth_discipline qeth_l2_discipline = {
1184 .devtype = &qeth_l2_devtype,
1185 .process_rx_buffer = qeth_l2_process_inbound_buffer,
1186 .recover = qeth_l2_recover,
1187 .setup = qeth_l2_probe_device,
1188 .remove = qeth_l2_remove_device,
1189 .set_online = qeth_l2_set_online,
1190 .set_offline = qeth_l2_set_offline,
1191 .freeze = qeth_l2_pm_suspend,
1192 .thaw = qeth_l2_pm_resume,
1193 .restore = qeth_l2_pm_resume,
1194 .do_ioctl = NULL,
1195 .control_event_handler = qeth_l2_control_event,
1196 };
1197 EXPORT_SYMBOL_GPL(qeth_l2_discipline);
1198
1199 static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1200 struct qeth_cmd_buffer *iob)
1201 {
1202 struct qeth_channel *channel = iob->channel;
1203 int rc = 0;
1204
1205 QETH_CARD_TEXT(card, 5, "osndctrd");
1206
1207 wait_event(card->wait_q,
1208 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1209 qeth_prepare_control_data(card, len, iob);
1210 QETH_CARD_TEXT(card, 6, "osnoirqp");
1211 spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
1212 rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw,
1213 (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT);
1214 spin_unlock_irq(get_ccwdev_lock(channel->ccwdev));
1215 if (rc) {
1216 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1217 "ccw_device_start rc = %i\n", rc);
1218 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1219 qeth_release_buffer(channel, iob);
1220 atomic_set(&channel->irq_pending, 0);
1221 wake_up(&card->wait_q);
1222 }
1223 return rc;
1224 }
1225
1226 static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1227 struct qeth_cmd_buffer *iob, int data_len)
1228 {
1229 u16 s1, s2;
1230
1231 QETH_CARD_TEXT(card, 4, "osndipa");
1232
1233 qeth_prepare_ipa_cmd(card, iob);
1234 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1235 s2 = (u16)data_len;
1236 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1237 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1238 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1239 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1240 return qeth_osn_send_control_data(card, s1, iob);
1241 }
1242
1243 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1244 {
1245 struct qeth_cmd_buffer *iob;
1246 struct qeth_card *card;
1247
1248 if (!dev)
1249 return -ENODEV;
1250 card = dev->ml_priv;
1251 if (!card)
1252 return -ENODEV;
1253 QETH_CARD_TEXT(card, 2, "osnsdmc");
1254 if (!qeth_card_hw_is_reachable(card))
1255 return -ENODEV;
1256 iob = qeth_wait_for_buffer(&card->write);
1257 memcpy(__ipa_cmd(iob), data, data_len);
1258 return qeth_osn_send_ipa_cmd(card, iob, data_len);
1259 }
1260 EXPORT_SYMBOL(qeth_osn_assist);
1261
1262 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1263 int (*assist_cb)(struct net_device *, void *),
1264 int (*data_cb)(struct sk_buff *))
1265 {
1266 struct qeth_card *card;
1267 char bus_id[16];
1268 u16 devno;
1269
1270 memcpy(&devno, read_dev_no, 2);
1271 sprintf(bus_id, "0.0.%04x", devno);
1272 card = qeth_get_card_by_busid(bus_id);
1273 if (!card || !IS_OSN(card))
1274 return -ENODEV;
1275 *dev = card->dev;
1276
1277 QETH_CARD_TEXT(card, 2, "osnreg");
1278 if ((assist_cb == NULL) || (data_cb == NULL))
1279 return -EINVAL;
1280 card->osn_info.assist_cb = assist_cb;
1281 card->osn_info.data_cb = data_cb;
1282 return 0;
1283 }
1284 EXPORT_SYMBOL(qeth_osn_register);
1285
1286 void qeth_osn_deregister(struct net_device *dev)
1287 {
1288 struct qeth_card *card;
1289
1290 if (!dev)
1291 return;
1292 card = dev->ml_priv;
1293 if (!card)
1294 return;
1295 QETH_CARD_TEXT(card, 2, "osndereg");
1296 card->osn_info.assist_cb = NULL;
1297 card->osn_info.data_cb = NULL;
1298 return;
1299 }
1300 EXPORT_SYMBOL(qeth_osn_deregister);
1301
1302 /* SETBRIDGEPORT support, async notifications */
1303
1304 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1305
1306 /**
1307 * qeth_bridge_emit_host_event() - bridgeport address change notification
1308 * @card: qeth_card structure pointer, for udev events.
1309 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1310 * and reset token and addr_lnid are unused and may be NULL.
1311 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1312 * object, 0 - addition of an object.
1313 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1314 * @token: "network token" structure identifying physical address of the port.
1315 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1316 *
1317 * This function is called when registrations and deregistrations are
1318 * reported by the hardware, and also when notifications are enabled -
1319 * for all currently registered addresses.
1320 */
1321 static void qeth_bridge_emit_host_event(struct qeth_card *card,
1322 enum qeth_an_event_type evtype,
1323 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1324 {
1325 char str[7][32];
1326 char *env[8];
1327 int i = 0;
1328
1329 switch (evtype) {
1330 case anev_reg_unreg:
1331 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1332 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1333 ? "deregister" : "register");
1334 env[i] = str[i]; i++;
1335 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1336 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1337 addr_lnid->lnid);
1338 env[i] = str[i]; i++;
1339 }
1340 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1341 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
1342 addr_lnid->mac);
1343 env[i] = str[i]; i++;
1344 }
1345 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1346 token->cssid, token->ssid, token->devnum);
1347 env[i] = str[i]; i++;
1348 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1349 env[i] = str[i]; i++;
1350 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1351 token->chpid);
1352 env[i] = str[i]; i++;
1353 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1354 env[i] = str[i]; i++;
1355 break;
1356 case anev_abort:
1357 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1358 env[i] = str[i]; i++;
1359 break;
1360 case anev_reset:
1361 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1362 env[i] = str[i]; i++;
1363 break;
1364 }
1365 env[i] = NULL;
1366 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1367 }
1368
1369 struct qeth_bridge_state_data {
1370 struct work_struct worker;
1371 struct qeth_card *card;
1372 struct qeth_sbp_state_change qports;
1373 };
1374
1375 static void qeth_bridge_state_change_worker(struct work_struct *work)
1376 {
1377 struct qeth_bridge_state_data *data =
1378 container_of(work, struct qeth_bridge_state_data, worker);
1379 /* We are only interested in the first entry - local port */
1380 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1381 char env_locrem[32];
1382 char env_role[32];
1383 char env_state[32];
1384 char *env[] = {
1385 env_locrem,
1386 env_role,
1387 env_state,
1388 NULL
1389 };
1390
1391 /* Role should not change by itself, but if it did, */
1392 /* information from the hardware is authoritative. */
1393 mutex_lock(&data->card->conf_mutex);
1394 data->card->options.sbp.role = entry->role;
1395 mutex_unlock(&data->card->conf_mutex);
1396
1397 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1398 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1399 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1400 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1401 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1402 "<INVALID>");
1403 snprintf(env_state, sizeof(env_state), "STATE=%s",
1404 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1405 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1406 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1407 "<INVALID>");
1408 kobject_uevent_env(&data->card->gdev->dev.kobj,
1409 KOBJ_CHANGE, env);
1410 kfree(data);
1411 }
1412
1413 static void qeth_bridge_state_change(struct qeth_card *card,
1414 struct qeth_ipa_cmd *cmd)
1415 {
1416 struct qeth_sbp_state_change *qports =
1417 &cmd->data.sbp.data.state_change;
1418 struct qeth_bridge_state_data *data;
1419 int extrasize;
1420
1421 QETH_CARD_TEXT(card, 2, "brstchng");
1422 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1423 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1424 return;
1425 }
1426 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1427 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1428 GFP_ATOMIC);
1429 if (!data) {
1430 QETH_CARD_TEXT(card, 2, "BPSalloc");
1431 return;
1432 }
1433 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1434 data->card = card;
1435 memcpy(&data->qports, qports,
1436 sizeof(struct qeth_sbp_state_change) + extrasize);
1437 queue_work(qeth_wq, &data->worker);
1438 }
1439
1440 struct qeth_bridge_host_data {
1441 struct work_struct worker;
1442 struct qeth_card *card;
1443 struct qeth_ipacmd_addr_change hostevs;
1444 };
1445
1446 static void qeth_bridge_host_event_worker(struct work_struct *work)
1447 {
1448 struct qeth_bridge_host_data *data =
1449 container_of(work, struct qeth_bridge_host_data, worker);
1450 int i;
1451
1452 if (data->hostevs.lost_event_mask) {
1453 dev_info(&data->card->gdev->dev,
1454 "Address notification from the Bridge Port stopped %s (%s)\n",
1455 data->card->dev->name,
1456 (data->hostevs.lost_event_mask == 0x01)
1457 ? "Overflow"
1458 : (data->hostevs.lost_event_mask == 0x02)
1459 ? "Bridge port state change"
1460 : "Unknown reason");
1461 mutex_lock(&data->card->conf_mutex);
1462 data->card->options.sbp.hostnotification = 0;
1463 mutex_unlock(&data->card->conf_mutex);
1464 qeth_bridge_emit_host_event(data->card, anev_abort,
1465 0, NULL, NULL);
1466 } else
1467 for (i = 0; i < data->hostevs.num_entries; i++) {
1468 struct qeth_ipacmd_addr_change_entry *entry =
1469 &data->hostevs.entry[i];
1470 qeth_bridge_emit_host_event(data->card,
1471 anev_reg_unreg,
1472 entry->change_code,
1473 &entry->token, &entry->addr_lnid);
1474 }
1475 kfree(data);
1476 }
1477
1478 static void qeth_bridge_host_event(struct qeth_card *card,
1479 struct qeth_ipa_cmd *cmd)
1480 {
1481 struct qeth_ipacmd_addr_change *hostevs =
1482 &cmd->data.addrchange;
1483 struct qeth_bridge_host_data *data;
1484 int extrasize;
1485
1486 QETH_CARD_TEXT(card, 2, "brhostev");
1487 if (cmd->hdr.return_code != 0x0000) {
1488 if (cmd->hdr.return_code == 0x0010) {
1489 if (hostevs->lost_event_mask == 0x00)
1490 hostevs->lost_event_mask = 0xff;
1491 } else {
1492 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1493 cmd->hdr.return_code);
1494 return;
1495 }
1496 }
1497 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1498 hostevs->num_entries;
1499 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1500 GFP_ATOMIC);
1501 if (!data) {
1502 QETH_CARD_TEXT(card, 2, "BPHalloc");
1503 return;
1504 }
1505 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1506 data->card = card;
1507 memcpy(&data->hostevs, hostevs,
1508 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1509 queue_work(qeth_wq, &data->worker);
1510 }
1511
1512 /* SETBRIDGEPORT support; sending commands */
1513
1514 struct _qeth_sbp_cbctl {
1515 u16 ipa_rc;
1516 u16 cmd_rc;
1517 union {
1518 u32 supported;
1519 struct {
1520 enum qeth_sbp_roles *role;
1521 enum qeth_sbp_states *state;
1522 } qports;
1523 } data;
1524 };
1525
1526 /**
1527 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1528 * @card: qeth_card structure pointer, for debug messages.
1529 * @cbctl: state structure with hardware return codes.
1530 * @setcmd: IPA command code
1531 *
1532 * Returns negative errno-compatible error indication or 0 on success.
1533 */
1534 static int qeth_bridgeport_makerc(struct qeth_card *card,
1535 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1536 {
1537 int rc;
1538 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
1539
1540 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1541 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
1542 switch (cbctl->cmd_rc) {
1543 case IPA_RC_SUCCESS:
1544 rc = 0;
1545 break;
1546 case IPA_RC_L2_UNSUPPORTED_CMD:
1547 case IPA_RC_UNSUPPORTED_COMMAND:
1548 rc = -EOPNOTSUPP;
1549 break;
1550 case IPA_RC_SBP_OSA_NOT_CONFIGURED:
1551 case IPA_RC_SBP_IQD_NOT_CONFIGURED:
1552 rc = -ENODEV; /* maybe not the best code here? */
1553 dev_err(&card->gdev->dev,
1554 "The device is not configured as a Bridge Port\n");
1555 break;
1556 case IPA_RC_SBP_OSA_OS_MISMATCH:
1557 case IPA_RC_SBP_IQD_OS_MISMATCH:
1558 rc = -EPERM;
1559 dev_err(&card->gdev->dev,
1560 "A Bridge Port is already configured by a different operating system\n");
1561 break;
1562 case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY:
1563 case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY:
1564 switch (setcmd) {
1565 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1566 rc = -EEXIST;
1567 dev_err(&card->gdev->dev,
1568 "The LAN already has a primary Bridge Port\n");
1569 break;
1570 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1571 rc = -EBUSY;
1572 dev_err(&card->gdev->dev,
1573 "The device is already a primary Bridge Port\n");
1574 break;
1575 default:
1576 rc = -EIO;
1577 }
1578 break;
1579 case IPA_RC_SBP_OSA_CURRENT_SECOND:
1580 case IPA_RC_SBP_IQD_CURRENT_SECOND:
1581 rc = -EBUSY;
1582 dev_err(&card->gdev->dev,
1583 "The device is already a secondary Bridge Port\n");
1584 break;
1585 case IPA_RC_SBP_OSA_LIMIT_SECOND:
1586 case IPA_RC_SBP_IQD_LIMIT_SECOND:
1587 rc = -EEXIST;
1588 dev_err(&card->gdev->dev,
1589 "The LAN cannot have more secondary Bridge Ports\n");
1590 break;
1591 case IPA_RC_SBP_OSA_CURRENT_PRIMARY:
1592 case IPA_RC_SBP_IQD_CURRENT_PRIMARY:
1593 rc = -EBUSY;
1594 dev_err(&card->gdev->dev,
1595 "The device is already a primary Bridge Port\n");
1596 break;
1597 case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN:
1598 case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN:
1599 rc = -EACCES;
1600 dev_err(&card->gdev->dev,
1601 "The device is not authorized to be a Bridge Port\n");
1602 break;
1603 default:
1604 rc = -EIO;
1605 }
1606 else
1607 switch (cbctl->ipa_rc) {
1608 case IPA_RC_NOTSUPP:
1609 rc = -EOPNOTSUPP;
1610 break;
1611 case IPA_RC_UNSUPPORTED_COMMAND:
1612 rc = -EOPNOTSUPP;
1613 break;
1614 default:
1615 rc = -EIO;
1616 }
1617
1618 if (rc) {
1619 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1620 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1621 }
1622 return rc;
1623 }
1624
1625 static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card,
1626 enum qeth_ipa_sbp_cmd sbp_cmd,
1627 unsigned int cmd_length)
1628 {
1629 enum qeth_ipa_cmds ipa_cmd = (card->info.type == QETH_CARD_TYPE_IQD) ?
1630 IPA_CMD_SETBRIDGEPORT_IQD :
1631 IPA_CMD_SETBRIDGEPORT_OSA;
1632 struct qeth_cmd_buffer *iob;
1633 struct qeth_ipa_cmd *cmd;
1634
1635 iob = qeth_get_ipacmd_buffer(card, ipa_cmd, 0);
1636 if (!iob)
1637 return iob;
1638 cmd = __ipa_cmd(iob);
1639 cmd->data.sbp.hdr.cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1640 cmd_length;
1641 cmd->data.sbp.hdr.command_code = sbp_cmd;
1642 cmd->data.sbp.hdr.used_total = 1;
1643 cmd->data.sbp.hdr.seq_no = 1;
1644 return iob;
1645 }
1646
1647 static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1648 struct qeth_reply *reply, unsigned long data)
1649 {
1650 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1651 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1652 QETH_CARD_TEXT(card, 2, "brqsupcb");
1653 cbctl->ipa_rc = cmd->hdr.return_code;
1654 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1655 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1656 cbctl->data.supported =
1657 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1658 } else {
1659 cbctl->data.supported = 0;
1660 }
1661 return 0;
1662 }
1663
1664 /**
1665 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1666 * @card: qeth_card structure pointer.
1667 *
1668 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1669 * strucutre: card->options.sbp.supported_funcs.
1670 */
1671 static void qeth_bridgeport_query_support(struct qeth_card *card)
1672 {
1673 struct qeth_cmd_buffer *iob;
1674 struct _qeth_sbp_cbctl cbctl;
1675
1676 QETH_CARD_TEXT(card, 2, "brqsuppo");
1677 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED,
1678 sizeof(struct qeth_sbp_query_cmds_supp));
1679 if (!iob)
1680 return;
1681 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1682 (void *)&cbctl) ||
1683 qeth_bridgeport_makerc(card, &cbctl,
1684 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1685 /* non-zero makerc signifies failure, and produce messages */
1686 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1687 return;
1688 }
1689 card->options.sbp.supported_funcs = cbctl.data.supported;
1690 }
1691
1692 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1693 struct qeth_reply *reply, unsigned long data)
1694 {
1695 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1696 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1697 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1698
1699 QETH_CARD_TEXT(card, 2, "brqprtcb");
1700 cbctl->ipa_rc = cmd->hdr.return_code;
1701 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1702 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1703 return 0;
1704 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1705 cbctl->cmd_rc = 0xffff;
1706 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1707 return 0;
1708 }
1709 /* first entry contains the state of the local port */
1710 if (qports->num_entries > 0) {
1711 if (cbctl->data.qports.role)
1712 *cbctl->data.qports.role = qports->entry[0].role;
1713 if (cbctl->data.qports.state)
1714 *cbctl->data.qports.state = qports->entry[0].state;
1715 }
1716 return 0;
1717 }
1718
1719 /**
1720 * qeth_bridgeport_query_ports() - query local bridgeport status.
1721 * @card: qeth_card structure pointer.
1722 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1723 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1724 *
1725 * Returns negative errno-compatible error indication or 0 on success.
1726 *
1727 * 'role' and 'state' are not updated in case of hardware operation failure.
1728 */
1729 int qeth_bridgeport_query_ports(struct qeth_card *card,
1730 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1731 {
1732 int rc = 0;
1733 struct qeth_cmd_buffer *iob;
1734 struct _qeth_sbp_cbctl cbctl = {
1735 .data = {
1736 .qports = {
1737 .role = role,
1738 .state = state,
1739 },
1740 },
1741 };
1742
1743 QETH_CARD_TEXT(card, 2, "brqports");
1744 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1745 return -EOPNOTSUPP;
1746 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0);
1747 if (!iob)
1748 return -ENOMEM;
1749 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1750 (void *)&cbctl);
1751 if (rc < 0)
1752 return rc;
1753 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
1754 }
1755
1756 static int qeth_bridgeport_set_cb(struct qeth_card *card,
1757 struct qeth_reply *reply, unsigned long data)
1758 {
1759 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1760 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1761 QETH_CARD_TEXT(card, 2, "brsetrcb");
1762 cbctl->ipa_rc = cmd->hdr.return_code;
1763 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1764 return 0;
1765 }
1766
1767 /**
1768 * qeth_bridgeport_setrole() - Assign primary role to the port.
1769 * @card: qeth_card structure pointer.
1770 * @role: Role to assign.
1771 *
1772 * Returns negative errno-compatible error indication or 0 on success.
1773 */
1774 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1775 {
1776 int rc = 0;
1777 int cmdlength;
1778 struct qeth_cmd_buffer *iob;
1779 struct _qeth_sbp_cbctl cbctl;
1780 enum qeth_ipa_sbp_cmd setcmd;
1781
1782 QETH_CARD_TEXT(card, 2, "brsetrol");
1783 switch (role) {
1784 case QETH_SBP_ROLE_NONE:
1785 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1786 cmdlength = sizeof(struct qeth_sbp_reset_role);
1787 break;
1788 case QETH_SBP_ROLE_PRIMARY:
1789 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1790 cmdlength = sizeof(struct qeth_sbp_set_primary);
1791 break;
1792 case QETH_SBP_ROLE_SECONDARY:
1793 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1794 cmdlength = sizeof(struct qeth_sbp_set_secondary);
1795 break;
1796 default:
1797 return -EINVAL;
1798 }
1799 if (!(card->options.sbp.supported_funcs & setcmd))
1800 return -EOPNOTSUPP;
1801 iob = qeth_sbp_build_cmd(card, setcmd, cmdlength);
1802 if (!iob)
1803 return -ENOMEM;
1804 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1805 (void *)&cbctl);
1806 if (rc < 0)
1807 return rc;
1808 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
1809 }
1810
1811 /**
1812 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1813 * @card: qeth_card structure pointer, for debug messages.
1814 *
1815 * Returns negative errno-compatible error indication or 0 on success.
1816 */
1817 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1818 {
1819 int rc;
1820
1821 if (pnso_rc == 0)
1822 switch (response) {
1823 case 0x0001:
1824 rc = 0;
1825 break;
1826 case 0x0004:
1827 case 0x0100:
1828 case 0x0106:
1829 rc = -EOPNOTSUPP;
1830 dev_err(&card->gdev->dev,
1831 "Setting address notification failed\n");
1832 break;
1833 case 0x0107:
1834 rc = -EAGAIN;
1835 break;
1836 default:
1837 rc = -EIO;
1838 }
1839 else
1840 rc = -EIO;
1841
1842 if (rc) {
1843 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1844 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1845 }
1846 return rc;
1847 }
1848
1849 static void qeth_bridgeport_an_set_cb(void *priv,
1850 enum qdio_brinfo_entry_type type, void *entry)
1851 {
1852 struct qeth_card *card = (struct qeth_card *)priv;
1853 struct qdio_brinfo_entry_l2 *l2entry;
1854 u8 code;
1855
1856 if (type != l2_addr_lnid) {
1857 WARN_ON_ONCE(1);
1858 return;
1859 }
1860
1861 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1862 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1863 if (l2entry->addr_lnid.lnid)
1864 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1865 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1866 (struct net_if_token *)&l2entry->nit,
1867 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1868 }
1869
1870 /**
1871 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1872 * @card: qeth_card structure pointer.
1873 * @enable: 0 - disable, non-zero - enable notifications
1874 *
1875 * Returns negative errno-compatible error indication or 0 on success.
1876 *
1877 * On enable, emits a series of address notifications udev events for all
1878 * currently registered hosts.
1879 */
1880 int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1881 {
1882 int rc;
1883 u16 response;
1884 struct ccw_device *ddev;
1885 struct subchannel_id schid;
1886
1887 if (!card)
1888 return -EINVAL;
1889 if (!card->options.sbp.supported_funcs)
1890 return -EOPNOTSUPP;
1891 ddev = CARD_DDEV(card);
1892 ccw_device_get_schid(ddev, &schid);
1893
1894 if (enable) {
1895 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1896 rc = qdio_pnso_brinfo(schid, 1, &response,
1897 qeth_bridgeport_an_set_cb, card);
1898 } else
1899 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1900 return qeth_anset_makerc(card, rc, response);
1901 }
1902
1903 static bool qeth_bridgeport_is_in_use(struct qeth_card *card)
1904 {
1905 return (card->options.sbp.role || card->options.sbp.reflect_promisc ||
1906 card->options.sbp.hostnotification);
1907 }
1908
1909 /* VNIC Characteristics support */
1910
1911 /* handle VNICC IPA command return codes; convert to error codes */
1912 static int qeth_l2_vnicc_makerc(struct qeth_card *card, int ipa_rc)
1913 {
1914 int rc;
1915
1916 switch (ipa_rc) {
1917 case IPA_RC_SUCCESS:
1918 return ipa_rc;
1919 case IPA_RC_L2_UNSUPPORTED_CMD:
1920 case IPA_RC_NOTSUPP:
1921 rc = -EOPNOTSUPP;
1922 break;
1923 case IPA_RC_VNICC_OOSEQ:
1924 rc = -EALREADY;
1925 break;
1926 case IPA_RC_VNICC_VNICBP:
1927 rc = -EBUSY;
1928 break;
1929 case IPA_RC_L2_ADDR_TABLE_FULL:
1930 rc = -ENOSPC;
1931 break;
1932 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
1933 rc = -EACCES;
1934 break;
1935 default:
1936 rc = -EIO;
1937 }
1938
1939 QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc);
1940 return rc;
1941 }
1942
1943 /* generic VNICC request call back control */
1944 struct _qeth_l2_vnicc_request_cbctl {
1945 u32 sub_cmd;
1946 struct {
1947 u32 vnic_char;
1948 u32 timeout;
1949 } param;
1950 struct {
1951 union{
1952 u32 *sup_cmds;
1953 u32 *timeout;
1954 };
1955 } result;
1956 };
1957
1958 /* generic VNICC request call back */
1959 static int qeth_l2_vnicc_request_cb(struct qeth_card *card,
1960 struct qeth_reply *reply,
1961 unsigned long data)
1962 {
1963 struct _qeth_l2_vnicc_request_cbctl *cbctl =
1964 (struct _qeth_l2_vnicc_request_cbctl *) reply->param;
1965 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1966 struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc;
1967
1968 QETH_CARD_TEXT(card, 2, "vniccrcb");
1969 if (cmd->hdr.return_code)
1970 return 0;
1971 /* return results to caller */
1972 card->options.vnicc.sup_chars = rep->hdr.sup;
1973 card->options.vnicc.cur_chars = rep->hdr.cur;
1974
1975 if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS)
1976 *cbctl->result.sup_cmds = rep->query_cmds.sup_cmds;
1977
1978 if (cbctl->sub_cmd == IPA_VNICC_GET_TIMEOUT)
1979 *cbctl->result.timeout = rep->getset_timeout.timeout;
1980
1981 return 0;
1982 }
1983
1984 /* generic VNICC request */
1985 static int qeth_l2_vnicc_request(struct qeth_card *card,
1986 struct _qeth_l2_vnicc_request_cbctl *cbctl)
1987 {
1988 struct qeth_ipacmd_vnicc *req;
1989 struct qeth_cmd_buffer *iob;
1990 struct qeth_ipa_cmd *cmd;
1991 int rc;
1992
1993 QETH_CARD_TEXT(card, 2, "vniccreq");
1994
1995 /* get new buffer for request */
1996 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_VNICC, 0);
1997 if (!iob)
1998 return -ENOMEM;
1999
2000 /* create header for request */
2001 cmd = __ipa_cmd(iob);
2002 req = &cmd->data.vnicc;
2003
2004 /* create sub command header for request */
2005 req->sub_hdr.data_length = sizeof(req->sub_hdr);
2006 req->sub_hdr.sub_command = cbctl->sub_cmd;
2007
2008 /* create sub command specific request fields */
2009 switch (cbctl->sub_cmd) {
2010 case IPA_VNICC_QUERY_CHARS:
2011 break;
2012 case IPA_VNICC_QUERY_CMDS:
2013 req->sub_hdr.data_length += sizeof(req->query_cmds);
2014 req->query_cmds.vnic_char = cbctl->param.vnic_char;
2015 break;
2016 case IPA_VNICC_ENABLE:
2017 case IPA_VNICC_DISABLE:
2018 req->sub_hdr.data_length += sizeof(req->set_char);
2019 req->set_char.vnic_char = cbctl->param.vnic_char;
2020 break;
2021 case IPA_VNICC_SET_TIMEOUT:
2022 req->getset_timeout.timeout = cbctl->param.timeout;
2023 /* fallthrough */
2024 case IPA_VNICC_GET_TIMEOUT:
2025 req->sub_hdr.data_length += sizeof(req->getset_timeout);
2026 req->getset_timeout.vnic_char = cbctl->param.vnic_char;
2027 break;
2028 default:
2029 qeth_release_buffer(iob->channel, iob);
2030 return -EOPNOTSUPP;
2031 }
2032
2033 /* send request */
2034 rc = qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb,
2035 (void *) cbctl);
2036
2037 return qeth_l2_vnicc_makerc(card, rc);
2038 }
2039
2040 /* VNICC query VNIC characteristics request */
2041 static int qeth_l2_vnicc_query_chars(struct qeth_card *card)
2042 {
2043 struct _qeth_l2_vnicc_request_cbctl cbctl;
2044
2045 /* prepare callback control */
2046 cbctl.sub_cmd = IPA_VNICC_QUERY_CHARS;
2047
2048 QETH_CARD_TEXT(card, 2, "vniccqch");
2049 return qeth_l2_vnicc_request(card, &cbctl);
2050 }
2051
2052 /* VNICC query sub commands request */
2053 static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char,
2054 u32 *sup_cmds)
2055 {
2056 struct _qeth_l2_vnicc_request_cbctl cbctl;
2057
2058 /* prepare callback control */
2059 cbctl.sub_cmd = IPA_VNICC_QUERY_CMDS;
2060 cbctl.param.vnic_char = vnic_char;
2061 cbctl.result.sup_cmds = sup_cmds;
2062
2063 QETH_CARD_TEXT(card, 2, "vniccqcm");
2064 return qeth_l2_vnicc_request(card, &cbctl);
2065 }
2066
2067 /* VNICC enable/disable characteristic request */
2068 static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char,
2069 u32 cmd)
2070 {
2071 struct _qeth_l2_vnicc_request_cbctl cbctl;
2072
2073 /* prepare callback control */
2074 cbctl.sub_cmd = cmd;
2075 cbctl.param.vnic_char = vnic_char;
2076
2077 QETH_CARD_TEXT(card, 2, "vniccedc");
2078 return qeth_l2_vnicc_request(card, &cbctl);
2079 }
2080
2081 /* VNICC get/set timeout for characteristic request */
2082 static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc,
2083 u32 cmd, u32 *timeout)
2084 {
2085 struct _qeth_l2_vnicc_request_cbctl cbctl;
2086
2087 /* prepare callback control */
2088 cbctl.sub_cmd = cmd;
2089 cbctl.param.vnic_char = vnicc;
2090 if (cmd == IPA_VNICC_SET_TIMEOUT)
2091 cbctl.param.timeout = *timeout;
2092 if (cmd == IPA_VNICC_GET_TIMEOUT)
2093 cbctl.result.timeout = timeout;
2094
2095 QETH_CARD_TEXT(card, 2, "vniccgst");
2096 return qeth_l2_vnicc_request(card, &cbctl);
2097 }
2098
2099 /* set current VNICC flag state; called from sysfs store function */
2100 int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state)
2101 {
2102 int rc = 0;
2103 u32 cmd;
2104
2105 QETH_CARD_TEXT(card, 2, "vniccsch");
2106
2107 /* do not change anything if BridgePort is enabled */
2108 if (qeth_bridgeport_is_in_use(card))
2109 return -EBUSY;
2110
2111 /* check if characteristic and enable/disable are supported */
2112 if (!(card->options.vnicc.sup_chars & vnicc) ||
2113 !(card->options.vnicc.set_char_sup & vnicc))
2114 return -EOPNOTSUPP;
2115
2116 /* set enable/disable command and store wanted characteristic */
2117 if (state) {
2118 cmd = IPA_VNICC_ENABLE;
2119 card->options.vnicc.wanted_chars |= vnicc;
2120 } else {
2121 cmd = IPA_VNICC_DISABLE;
2122 card->options.vnicc.wanted_chars &= ~vnicc;
2123 }
2124
2125 /* do we need to do anything? */
2126 if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars)
2127 return rc;
2128
2129 /* if card is not ready, simply stop here */
2130 if (!qeth_card_hw_is_reachable(card)) {
2131 if (state)
2132 card->options.vnicc.cur_chars |= vnicc;
2133 else
2134 card->options.vnicc.cur_chars &= ~vnicc;
2135 return rc;
2136 }
2137
2138 rc = qeth_l2_vnicc_set_char(card, vnicc, cmd);
2139 if (rc)
2140 card->options.vnicc.wanted_chars =
2141 card->options.vnicc.cur_chars;
2142 else {
2143 /* successful online VNICC change; handle special cases */
2144 if (state && vnicc == QETH_VNICC_RX_BCAST)
2145 card->options.vnicc.rx_bcast_enabled = true;
2146 if (!state && vnicc == QETH_VNICC_LEARNING)
2147 qeth_l2_vnicc_recover_timeout(card, vnicc,
2148 &card->options.vnicc.learning_timeout);
2149 }
2150
2151 return rc;
2152 }
2153
2154 /* get current VNICC flag state; called from sysfs show function */
2155 int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state)
2156 {
2157 int rc = 0;
2158
2159 QETH_CARD_TEXT(card, 2, "vniccgch");
2160
2161 /* do not get anything if BridgePort is enabled */
2162 if (qeth_bridgeport_is_in_use(card))
2163 return -EBUSY;
2164
2165 /* check if characteristic is supported */
2166 if (!(card->options.vnicc.sup_chars & vnicc))
2167 return -EOPNOTSUPP;
2168
2169 /* if card is ready, query current VNICC state */
2170 if (qeth_card_hw_is_reachable(card))
2171 rc = qeth_l2_vnicc_query_chars(card);
2172
2173 *state = (card->options.vnicc.cur_chars & vnicc) ? true : false;
2174 return rc;
2175 }
2176
2177 /* set VNICC timeout; called from sysfs store function. Currently, only learning
2178 * supports timeout
2179 */
2180 int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout)
2181 {
2182 int rc = 0;
2183
2184 QETH_CARD_TEXT(card, 2, "vniccsto");
2185
2186 /* do not change anything if BridgePort is enabled */
2187 if (qeth_bridgeport_is_in_use(card))
2188 return -EBUSY;
2189
2190 /* check if characteristic and set_timeout are supported */
2191 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
2192 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
2193 return -EOPNOTSUPP;
2194
2195 /* do we need to do anything? */
2196 if (card->options.vnicc.learning_timeout == timeout)
2197 return rc;
2198
2199 /* if card is not ready, simply store the value internally and return */
2200 if (!qeth_card_hw_is_reachable(card)) {
2201 card->options.vnicc.learning_timeout = timeout;
2202 return rc;
2203 }
2204
2205 /* send timeout value to card; if successful, store value internally */
2206 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
2207 IPA_VNICC_SET_TIMEOUT, &timeout);
2208 if (!rc)
2209 card->options.vnicc.learning_timeout = timeout;
2210
2211 return rc;
2212 }
2213
2214 /* get current VNICC timeout; called from sysfs show function. Currently, only
2215 * learning supports timeout
2216 */
2217 int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout)
2218 {
2219 int rc = 0;
2220
2221 QETH_CARD_TEXT(card, 2, "vniccgto");
2222
2223 /* do not get anything if BridgePort is enabled */
2224 if (qeth_bridgeport_is_in_use(card))
2225 return -EBUSY;
2226
2227 /* check if characteristic and get_timeout are supported */
2228 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
2229 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
2230 return -EOPNOTSUPP;
2231 /* if card is ready, get timeout. Otherwise, just return stored value */
2232 *timeout = card->options.vnicc.learning_timeout;
2233 if (qeth_card_hw_is_reachable(card))
2234 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
2235 IPA_VNICC_GET_TIMEOUT,
2236 timeout);
2237
2238 return rc;
2239 }
2240
2241 /* check if VNICC is currently enabled */
2242 bool qeth_l2_vnicc_is_in_use(struct qeth_card *card)
2243 {
2244 /* if everything is turned off, VNICC is not active */
2245 if (!card->options.vnicc.cur_chars)
2246 return false;
2247 /* default values are only OK if rx_bcast was not enabled by user
2248 * or the card is offline.
2249 */
2250 if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) {
2251 if (!card->options.vnicc.rx_bcast_enabled ||
2252 !qeth_card_hw_is_reachable(card))
2253 return false;
2254 }
2255 return true;
2256 }
2257
2258 /* recover user timeout setting */
2259 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
2260 u32 *timeout)
2261 {
2262 if (card->options.vnicc.sup_chars & vnicc &&
2263 card->options.vnicc.getset_timeout_sup & vnicc &&
2264 !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT,
2265 timeout))
2266 return false;
2267 *timeout = QETH_VNICC_DEFAULT_TIMEOUT;
2268 return true;
2269 }
2270
2271 /* recover user characteristic setting */
2272 static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc,
2273 bool enable)
2274 {
2275 u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE;
2276
2277 if (card->options.vnicc.sup_chars & vnicc &&
2278 card->options.vnicc.set_char_sup & vnicc &&
2279 !qeth_l2_vnicc_set_char(card, vnicc, cmd))
2280 return false;
2281 card->options.vnicc.wanted_chars &= ~vnicc;
2282 card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc;
2283 return true;
2284 }
2285
2286 /* (re-)initialize VNICC */
2287 static void qeth_l2_vnicc_init(struct qeth_card *card)
2288 {
2289 u32 *timeout = &card->options.vnicc.learning_timeout;
2290 unsigned int chars_len, i;
2291 unsigned long chars_tmp;
2292 u32 sup_cmds, vnicc;
2293 bool enable, error;
2294
2295 QETH_CARD_TEXT(card, 2, "vniccini");
2296 /* reset rx_bcast */
2297 card->options.vnicc.rx_bcast_enabled = 0;
2298 /* initial query and storage of VNIC characteristics */
2299 if (qeth_l2_vnicc_query_chars(card)) {
2300 if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT ||
2301 *timeout != QETH_VNICC_DEFAULT_TIMEOUT)
2302 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n");
2303 /* fail quietly if user didn't change the default config */
2304 card->options.vnicc.sup_chars = 0;
2305 card->options.vnicc.cur_chars = 0;
2306 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT;
2307 return;
2308 }
2309 /* get supported commands for each supported characteristic */
2310 chars_tmp = card->options.vnicc.sup_chars;
2311 chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE;
2312 for_each_set_bit(i, &chars_tmp, chars_len) {
2313 vnicc = BIT(i);
2314 qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds);
2315 if (!(sup_cmds & IPA_VNICC_SET_TIMEOUT) ||
2316 !(sup_cmds & IPA_VNICC_GET_TIMEOUT))
2317 card->options.vnicc.getset_timeout_sup &= ~vnicc;
2318 if (!(sup_cmds & IPA_VNICC_ENABLE) ||
2319 !(sup_cmds & IPA_VNICC_DISABLE))
2320 card->options.vnicc.set_char_sup &= ~vnicc;
2321 }
2322 /* enforce assumed default values and recover settings, if changed */
2323 error = qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING,
2324 timeout);
2325 chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT;
2326 chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE;
2327 chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE;
2328 for_each_set_bit(i, &chars_tmp, chars_len) {
2329 vnicc = BIT(i);
2330 enable = card->options.vnicc.wanted_chars & vnicc;
2331 error |= qeth_l2_vnicc_recover_char(card, vnicc, enable);
2332 }
2333 if (error)
2334 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n");
2335 }
2336
2337 /* configure default values of VNIC characteristics */
2338 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card)
2339 {
2340 /* characteristics values */
2341 card->options.vnicc.sup_chars = QETH_VNICC_ALL;
2342 card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT;
2343 card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT;
2344 /* supported commands */
2345 card->options.vnicc.set_char_sup = QETH_VNICC_ALL;
2346 card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING;
2347 /* settings wanted by users */
2348 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT;
2349 }
2350
2351 module_init(qeth_l2_init);
2352 module_exit(qeth_l2_exit);
2353 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2354 MODULE_DESCRIPTION("qeth layer 2 discipline");
2355 MODULE_LICENSE("GPL");
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