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Merge tag 'mips_fixes_5.0_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips...
[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 flush_workqueue(card->event_wq);
374 }
375
376 static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
377 int budget, int *done)
378 {
379 int work_done = 0;
380 struct sk_buff *skb;
381 struct qeth_hdr *hdr;
382 unsigned int len;
383
384 *done = 0;
385 WARN_ON_ONCE(!budget);
386 while (budget) {
387 skb = qeth_core_get_next_skb(card,
388 &card->qdio.in_q->bufs[card->rx.b_index],
389 &card->rx.b_element, &card->rx.e_offset, &hdr);
390 if (!skb) {
391 *done = 1;
392 break;
393 }
394 switch (hdr->hdr.l2.id) {
395 case QETH_HEADER_TYPE_LAYER2:
396 skb->protocol = eth_type_trans(skb, skb->dev);
397 qeth_rx_csum(card, skb, hdr->hdr.l2.flags[1]);
398 if (skb->protocol == htons(ETH_P_802_2))
399 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
400 len = skb->len;
401 napi_gro_receive(&card->napi, skb);
402 break;
403 case QETH_HEADER_TYPE_OSN:
404 if (card->info.type == QETH_CARD_TYPE_OSN) {
405 skb_push(skb, sizeof(struct qeth_hdr));
406 skb_copy_to_linear_data(skb, hdr,
407 sizeof(struct qeth_hdr));
408 len = skb->len;
409 card->osn_info.data_cb(skb);
410 break;
411 }
412 /* else unknown */
413 default:
414 dev_kfree_skb_any(skb);
415 QETH_CARD_TEXT(card, 3, "inbunkno");
416 QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr));
417 continue;
418 }
419 work_done++;
420 budget--;
421 card->stats.rx_packets++;
422 card->stats.rx_bytes += len;
423 }
424 return work_done;
425 }
426
427 static int qeth_l2_request_initial_mac(struct qeth_card *card)
428 {
429 int rc = 0;
430
431 QETH_DBF_TEXT(SETUP, 2, "l2reqmac");
432 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
433
434 if (MACHINE_IS_VM) {
435 rc = qeth_vm_request_mac(card);
436 if (!rc)
437 goto out;
438 QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n",
439 CARD_DEVID(card), rc);
440 QETH_DBF_TEXT_(SETUP, 2, "err%04x", rc);
441 /* fall back to alternative mechanism: */
442 }
443
444 if (!IS_OSN(card)) {
445 rc = qeth_setadpparms_change_macaddr(card);
446 if (!rc && is_valid_ether_addr(card->dev->dev_addr))
447 goto out;
448 QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n",
449 CARD_DEVID(card), rc);
450 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
451 /* fall back once more: */
452 }
453
454 /* some devices don't support a custom MAC address: */
455 if (card->info.type == QETH_CARD_TYPE_OSM ||
456 card->info.type == QETH_CARD_TYPE_OSX)
457 return (rc) ? rc : -EADDRNOTAVAIL;
458 eth_hw_addr_random(card->dev);
459
460 out:
461 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, card->dev->addr_len);
462 return 0;
463 }
464
465 static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
466 {
467 struct sockaddr *addr = p;
468 struct qeth_card *card = dev->ml_priv;
469 u8 old_addr[ETH_ALEN];
470 int rc = 0;
471
472 QETH_CARD_TEXT(card, 3, "setmac");
473
474 if (card->info.type == QETH_CARD_TYPE_OSN ||
475 card->info.type == QETH_CARD_TYPE_OSM ||
476 card->info.type == QETH_CARD_TYPE_OSX) {
477 QETH_CARD_TEXT(card, 3, "setmcTYP");
478 return -EOPNOTSUPP;
479 }
480 QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN);
481 if (!is_valid_ether_addr(addr->sa_data))
482 return -EADDRNOTAVAIL;
483
484 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
485 QETH_CARD_TEXT(card, 3, "setmcREC");
486 return -ERESTARTSYS;
487 }
488
489 /* avoid racing against concurrent state change: */
490 if (!mutex_trylock(&card->conf_mutex))
491 return -EAGAIN;
492
493 if (!qeth_card_hw_is_reachable(card)) {
494 ether_addr_copy(dev->dev_addr, addr->sa_data);
495 goto out_unlock;
496 }
497
498 /* don't register the same address twice */
499 if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) &&
500 (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
501 goto out_unlock;
502
503 /* add the new address, switch over, drop the old */
504 rc = qeth_l2_send_setmac(card, addr->sa_data);
505 if (rc)
506 goto out_unlock;
507 ether_addr_copy(old_addr, dev->dev_addr);
508 ether_addr_copy(dev->dev_addr, addr->sa_data);
509
510 if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)
511 qeth_l2_remove_mac(card, old_addr);
512 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
513
514 out_unlock:
515 mutex_unlock(&card->conf_mutex);
516 return rc;
517 }
518
519 static void qeth_promisc_to_bridge(struct qeth_card *card)
520 {
521 struct net_device *dev = card->dev;
522 enum qeth_ipa_promisc_modes promisc_mode;
523 int role;
524 int rc;
525
526 QETH_CARD_TEXT(card, 3, "pmisc2br");
527
528 if (!card->options.sbp.reflect_promisc)
529 return;
530 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
531 : SET_PROMISC_MODE_OFF;
532 if (promisc_mode == card->info.promisc_mode)
533 return;
534
535 if (promisc_mode == SET_PROMISC_MODE_ON) {
536 if (card->options.sbp.reflect_promisc_primary)
537 role = QETH_SBP_ROLE_PRIMARY;
538 else
539 role = QETH_SBP_ROLE_SECONDARY;
540 } else
541 role = QETH_SBP_ROLE_NONE;
542
543 rc = qeth_bridgeport_setrole(card, role);
544 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
545 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
546 if (!rc) {
547 card->options.sbp.role = role;
548 card->info.promisc_mode = promisc_mode;
549 }
550
551 }
552 /* New MAC address is added to the hash table and marked to be written on card
553 * only if there is not in the hash table storage already
554 *
555 */
556 static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha)
557 {
558 u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2]));
559 struct qeth_mac *mac;
560
561 hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) {
562 if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) {
563 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
564 return;
565 }
566 }
567
568 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
569 if (!mac)
570 return;
571
572 ether_addr_copy(mac->mac_addr, ha->addr);
573 mac->disp_flag = QETH_DISP_ADDR_ADD;
574
575 hash_add(card->mac_htable, &mac->hnode, mac_hash);
576 }
577
578 static void qeth_l2_set_rx_mode(struct net_device *dev)
579 {
580 struct qeth_card *card = dev->ml_priv;
581 struct netdev_hw_addr *ha;
582 struct qeth_mac *mac;
583 struct hlist_node *tmp;
584 int i;
585 int rc;
586
587 if (card->info.type == QETH_CARD_TYPE_OSN)
588 return;
589
590 QETH_CARD_TEXT(card, 3, "setmulti");
591 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
592 (card->state != CARD_STATE_UP))
593 return;
594
595 spin_lock_bh(&card->mclock);
596
597 netdev_for_each_mc_addr(ha, dev)
598 qeth_l2_add_mac(card, ha);
599 netdev_for_each_uc_addr(ha, dev)
600 qeth_l2_add_mac(card, ha);
601
602 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
603 switch (mac->disp_flag) {
604 case QETH_DISP_ADDR_DELETE:
605 qeth_l2_remove_mac(card, mac->mac_addr);
606 hash_del(&mac->hnode);
607 kfree(mac);
608 break;
609 case QETH_DISP_ADDR_ADD:
610 rc = qeth_l2_write_mac(card, mac->mac_addr);
611 if (rc) {
612 hash_del(&mac->hnode);
613 kfree(mac);
614 break;
615 }
616 /* fall through */
617 default:
618 /* for next call to set_rx_mode(): */
619 mac->disp_flag = QETH_DISP_ADDR_DELETE;
620 }
621 }
622
623 spin_unlock_bh(&card->mclock);
624
625 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
626 qeth_setadp_promisc_mode(card);
627 else
628 qeth_promisc_to_bridge(card);
629 }
630
631 static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb,
632 struct qeth_qdio_out_q *queue)
633 {
634 struct qeth_hdr *hdr = (struct qeth_hdr *)skb->data;
635 addr_t end = (addr_t)(skb->data + sizeof(*hdr));
636 addr_t start = (addr_t)skb->data;
637 unsigned int elements = 0;
638 unsigned int hd_len = 0;
639 int rc;
640
641 if (skb->protocol == htons(ETH_P_IPV6))
642 return -EPROTONOSUPPORT;
643
644 if (qeth_get_elements_for_range(start, end) > 1) {
645 /* Misaligned HW header, move it to its own buffer element. */
646 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
647 if (!hdr)
648 return -ENOMEM;
649 hd_len = sizeof(*hdr);
650 skb_copy_from_linear_data(skb, (char *)hdr, hd_len);
651 elements++;
652 }
653
654 elements += qeth_count_elements(skb, hd_len);
655 if (elements > QETH_MAX_BUFFER_ELEMENTS(card)) {
656 rc = -E2BIG;
657 goto out;
658 }
659
660 rc = qeth_do_send_packet(card, queue, skb, hdr, hd_len, hd_len,
661 elements);
662 out:
663 if (rc && hd_len)
664 kmem_cache_free(qeth_core_header_cache, hdr);
665 return rc;
666 }
667
668 static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
669 struct net_device *dev)
670 {
671 struct qeth_card *card = dev->ml_priv;
672 int cast_type = qeth_l2_get_cast_type(card, skb);
673 int ipv = qeth_get_ip_version(skb);
674 struct qeth_qdio_out_q *queue;
675 int tx_bytes = skb->len;
676 int rc;
677
678 if (card->state != CARD_STATE_UP) {
679 card->stats.tx_carrier_errors++;
680 goto tx_drop;
681 }
682
683 queue = qeth_get_tx_queue(card, skb, ipv, cast_type);
684
685 if (card->options.performance_stats) {
686 card->perf_stats.outbound_cnt++;
687 card->perf_stats.outbound_start_time = qeth_get_micros();
688 }
689 netif_stop_queue(dev);
690
691 if (IS_OSN(card))
692 rc = qeth_l2_xmit_osn(card, skb, queue);
693 else
694 rc = qeth_xmit(card, skb, queue, ipv, cast_type,
695 qeth_l2_fill_header);
696
697 if (!rc) {
698 card->stats.tx_packets++;
699 card->stats.tx_bytes += tx_bytes;
700 if (card->options.performance_stats)
701 card->perf_stats.outbound_time += qeth_get_micros() -
702 card->perf_stats.outbound_start_time;
703 netif_wake_queue(dev);
704 return NETDEV_TX_OK;
705 } else if (rc == -EBUSY) {
706 return NETDEV_TX_BUSY;
707 } /* else fall through */
708
709 tx_drop:
710 card->stats.tx_dropped++;
711 card->stats.tx_errors++;
712 dev_kfree_skb_any(skb);
713 netif_wake_queue(dev);
714 return NETDEV_TX_OK;
715 }
716
717 static int __qeth_l2_open(struct net_device *dev)
718 {
719 struct qeth_card *card = dev->ml_priv;
720 int rc = 0;
721
722 QETH_CARD_TEXT(card, 4, "qethopen");
723 if (card->state == CARD_STATE_UP)
724 return rc;
725 if (card->state != CARD_STATE_SOFTSETUP)
726 return -ENODEV;
727
728 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
729 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
730 QETH_CARD_TEXT(card, 4, "nomacadr");
731 return -EPERM;
732 }
733 card->data.state = CH_STATE_UP;
734 card->state = CARD_STATE_UP;
735 netif_start_queue(dev);
736
737 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
738 napi_enable(&card->napi);
739 local_bh_disable();
740 napi_schedule(&card->napi);
741 /* kick-start the NAPI softirq: */
742 local_bh_enable();
743 } else
744 rc = -EIO;
745 return rc;
746 }
747
748 static int qeth_l2_open(struct net_device *dev)
749 {
750 struct qeth_card *card = dev->ml_priv;
751
752 QETH_CARD_TEXT(card, 5, "qethope_");
753 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
754 QETH_CARD_TEXT(card, 3, "openREC");
755 return -ERESTARTSYS;
756 }
757 return __qeth_l2_open(dev);
758 }
759
760 static int qeth_l2_stop(struct net_device *dev)
761 {
762 struct qeth_card *card = dev->ml_priv;
763
764 QETH_CARD_TEXT(card, 4, "qethstop");
765 netif_tx_disable(dev);
766 if (card->state == CARD_STATE_UP) {
767 card->state = CARD_STATE_SOFTSETUP;
768 napi_disable(&card->napi);
769 }
770 return 0;
771 }
772
773 static const struct device_type qeth_l2_devtype = {
774 .name = "qeth_layer2",
775 .groups = qeth_l2_attr_groups,
776 };
777
778 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
779 {
780 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
781 int rc;
782
783 if (gdev->dev.type == &qeth_generic_devtype) {
784 rc = qeth_l2_create_device_attributes(&gdev->dev);
785 if (rc)
786 return rc;
787 }
788 INIT_LIST_HEAD(&card->vid_list);
789 hash_init(card->mac_htable);
790 card->info.hwtrap = 0;
791 qeth_l2_vnicc_set_defaults(card);
792 return 0;
793 }
794
795 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
796 {
797 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
798
799 if (cgdev->dev.type == &qeth_generic_devtype)
800 qeth_l2_remove_device_attributes(&cgdev->dev);
801 qeth_set_allowed_threads(card, 0, 1);
802 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
803
804 if (cgdev->state == CCWGROUP_ONLINE)
805 qeth_l2_set_offline(cgdev);
806
807 cancel_work_sync(&card->close_dev_work);
808 if (qeth_netdev_is_registered(card->dev))
809 unregister_netdev(card->dev);
810 }
811
812 static const struct ethtool_ops qeth_l2_ethtool_ops = {
813 .get_link = ethtool_op_get_link,
814 .get_strings = qeth_core_get_strings,
815 .get_ethtool_stats = qeth_core_get_ethtool_stats,
816 .get_sset_count = qeth_core_get_sset_count,
817 .get_drvinfo = qeth_core_get_drvinfo,
818 .get_link_ksettings = qeth_core_ethtool_get_link_ksettings,
819 };
820
821 static const struct ethtool_ops qeth_l2_osn_ops = {
822 .get_strings = qeth_core_get_strings,
823 .get_ethtool_stats = qeth_core_get_ethtool_stats,
824 .get_sset_count = qeth_core_get_sset_count,
825 .get_drvinfo = qeth_core_get_drvinfo,
826 };
827
828 static const struct net_device_ops qeth_l2_netdev_ops = {
829 .ndo_open = qeth_l2_open,
830 .ndo_stop = qeth_l2_stop,
831 .ndo_get_stats = qeth_get_stats,
832 .ndo_start_xmit = qeth_l2_hard_start_xmit,
833 .ndo_features_check = qeth_features_check,
834 .ndo_validate_addr = eth_validate_addr,
835 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
836 .ndo_do_ioctl = qeth_do_ioctl,
837 .ndo_set_mac_address = qeth_l2_set_mac_address,
838 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
839 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
840 .ndo_tx_timeout = qeth_tx_timeout,
841 .ndo_fix_features = qeth_fix_features,
842 .ndo_set_features = qeth_set_features
843 };
844
845 static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok)
846 {
847 int rc;
848
849 if (qeth_netdev_is_registered(card->dev))
850 return 0;
851
852 card->dev->priv_flags |= IFF_UNICAST_FLT;
853 card->dev->netdev_ops = &qeth_l2_netdev_ops;
854 if (card->info.type == QETH_CARD_TYPE_OSN) {
855 card->dev->ethtool_ops = &qeth_l2_osn_ops;
856 card->dev->flags |= IFF_NOARP;
857 } else {
858 card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
859 card->dev->needed_headroom = sizeof(struct qeth_hdr);
860 }
861
862 if (card->info.type == QETH_CARD_TYPE_OSM)
863 card->dev->features |= NETIF_F_VLAN_CHALLENGED;
864 else
865 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
866
867 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
868 card->dev->features |= NETIF_F_SG;
869 /* OSA 3S and earlier has no RX/TX support */
870 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) {
871 card->dev->hw_features |= NETIF_F_IP_CSUM;
872 card->dev->vlan_features |= NETIF_F_IP_CSUM;
873 }
874 }
875 if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) {
876 card->dev->hw_features |= NETIF_F_IPV6_CSUM;
877 card->dev->vlan_features |= NETIF_F_IPV6_CSUM;
878 }
879 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM) ||
880 qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) {
881 card->dev->hw_features |= NETIF_F_RXCSUM;
882 card->dev->vlan_features |= NETIF_F_RXCSUM;
883 }
884 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
885 card->dev->hw_features |= NETIF_F_TSO;
886 card->dev->vlan_features |= NETIF_F_TSO;
887 }
888 if (qeth_is_supported6(card, IPA_OUTBOUND_TSO)) {
889 card->dev->hw_features |= NETIF_F_TSO6;
890 card->dev->vlan_features |= NETIF_F_TSO6;
891 }
892
893 if (card->dev->hw_features & (NETIF_F_TSO | NETIF_F_TSO6)) {
894 card->dev->needed_headroom = sizeof(struct qeth_hdr_tso);
895 netif_set_gso_max_size(card->dev,
896 PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1));
897 }
898
899 if (!is_valid_ether_addr(card->dev->dev_addr))
900 qeth_l2_request_initial_mac(card);
901 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
902 rc = register_netdev(card->dev);
903 if (!rc && carrier_ok)
904 netif_carrier_on(card->dev);
905
906 if (rc)
907 card->dev->netdev_ops = NULL;
908 return rc;
909 }
910
911 static int qeth_l2_start_ipassists(struct qeth_card *card)
912 {
913 /* configure isolation level */
914 if (qeth_set_access_ctrl_online(card, 0))
915 return -ENODEV;
916 return 0;
917 }
918
919 static void qeth_l2_trace_features(struct qeth_card *card)
920 {
921 /* Set BridgePort features */
922 QETH_CARD_TEXT(card, 2, "featuSBP");
923 QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs,
924 sizeof(card->options.sbp.supported_funcs));
925 /* VNIC Characteristics features */
926 QETH_CARD_TEXT(card, 2, "feaVNICC");
927 QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars,
928 sizeof(card->options.vnicc.sup_chars));
929 }
930
931 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
932 {
933 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
934 int rc = 0;
935 enum qeth_card_states recover_flag;
936 bool carrier_ok;
937
938 mutex_lock(&card->discipline_mutex);
939 mutex_lock(&card->conf_mutex);
940 QETH_DBF_TEXT(SETUP, 2, "setonlin");
941 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
942
943 recover_flag = card->state;
944 rc = qeth_core_hardsetup_card(card, &carrier_ok);
945 if (rc) {
946 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
947 rc = -ENODEV;
948 goto out_remove;
949 }
950 qeth_bridgeport_query_support(card);
951 if (card->options.sbp.supported_funcs)
952 dev_info(&card->gdev->dev,
953 "The device represents a Bridge Capable Port\n");
954
955 rc = qeth_l2_setup_netdev(card, carrier_ok);
956 if (rc)
957 goto out_remove;
958
959 if (card->info.type != QETH_CARD_TYPE_OSN &&
960 !qeth_l2_send_setmac(card, card->dev->dev_addr))
961 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
962
963 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
964 if (card->info.hwtrap &&
965 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
966 card->info.hwtrap = 0;
967 } else
968 card->info.hwtrap = 0;
969
970 /* for the rx_bcast characteristic, init VNICC after setmac */
971 qeth_l2_vnicc_init(card);
972
973 qeth_trace_features(card);
974 qeth_l2_trace_features(card);
975
976 qeth_l2_setup_bridgeport_attrs(card);
977
978 card->state = CARD_STATE_HARDSETUP;
979 qeth_print_status_message(card);
980
981 /* softsetup */
982 QETH_DBF_TEXT(SETUP, 2, "softsetp");
983
984 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
985 (card->info.type == QETH_CARD_TYPE_OSX)) {
986 rc = qeth_l2_start_ipassists(card);
987 if (rc)
988 goto out_remove;
989 }
990
991 if (card->info.type != QETH_CARD_TYPE_OSN)
992 qeth_l2_process_vlans(card);
993
994 netif_tx_disable(card->dev);
995
996 rc = qeth_init_qdio_queues(card);
997 if (rc) {
998 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
999 rc = -ENODEV;
1000 goto out_remove;
1001 }
1002 card->state = CARD_STATE_SOFTSETUP;
1003
1004 qeth_set_allowed_threads(card, 0xffffffff, 0);
1005
1006 qeth_enable_hw_features(card->dev);
1007 if (recover_flag == CARD_STATE_RECOVER) {
1008 if (recovery_mode &&
1009 card->info.type != QETH_CARD_TYPE_OSN) {
1010 __qeth_l2_open(card->dev);
1011 qeth_l2_set_rx_mode(card->dev);
1012 } else {
1013 rtnl_lock();
1014 dev_open(card->dev, NULL);
1015 rtnl_unlock();
1016 }
1017 }
1018 /* let user_space know that device is online */
1019 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
1020 mutex_unlock(&card->conf_mutex);
1021 mutex_unlock(&card->discipline_mutex);
1022 return 0;
1023
1024 out_remove:
1025 qeth_l2_stop_card(card, 0);
1026 ccw_device_set_offline(CARD_DDEV(card));
1027 ccw_device_set_offline(CARD_WDEV(card));
1028 ccw_device_set_offline(CARD_RDEV(card));
1029 qdio_free(CARD_DDEV(card));
1030 if (recover_flag == CARD_STATE_RECOVER)
1031 card->state = CARD_STATE_RECOVER;
1032 else
1033 card->state = CARD_STATE_DOWN;
1034 mutex_unlock(&card->conf_mutex);
1035 mutex_unlock(&card->discipline_mutex);
1036 return rc;
1037 }
1038
1039 static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1040 {
1041 return __qeth_l2_set_online(gdev, 0);
1042 }
1043
1044 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1045 int recovery_mode)
1046 {
1047 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1048 int rc = 0, rc2 = 0, rc3 = 0;
1049 enum qeth_card_states recover_flag;
1050
1051 mutex_lock(&card->discipline_mutex);
1052 mutex_lock(&card->conf_mutex);
1053 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1054 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
1055
1056 netif_carrier_off(card->dev);
1057 recover_flag = card->state;
1058 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1059 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1060 card->info.hwtrap = 1;
1061 }
1062 qeth_l2_stop_card(card, recovery_mode);
1063 rc = ccw_device_set_offline(CARD_DDEV(card));
1064 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1065 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1066 if (!rc)
1067 rc = (rc2) ? rc2 : rc3;
1068 if (rc)
1069 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1070 qdio_free(CARD_DDEV(card));
1071 if (recover_flag == CARD_STATE_UP)
1072 card->state = CARD_STATE_RECOVER;
1073 /* let user_space know that device is offline */
1074 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
1075 mutex_unlock(&card->conf_mutex);
1076 mutex_unlock(&card->discipline_mutex);
1077 return 0;
1078 }
1079
1080 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1081 {
1082 return __qeth_l2_set_offline(cgdev, 0);
1083 }
1084
1085 static int qeth_l2_recover(void *ptr)
1086 {
1087 struct qeth_card *card;
1088 int rc = 0;
1089
1090 card = (struct qeth_card *) ptr;
1091 QETH_CARD_TEXT(card, 2, "recover1");
1092 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1093 return 0;
1094 QETH_CARD_TEXT(card, 2, "recover2");
1095 dev_warn(&card->gdev->dev,
1096 "A recovery process has been started for the device\n");
1097 qeth_set_recovery_task(card);
1098 __qeth_l2_set_offline(card->gdev, 1);
1099 rc = __qeth_l2_set_online(card->gdev, 1);
1100 if (!rc)
1101 dev_info(&card->gdev->dev,
1102 "Device successfully recovered!\n");
1103 else {
1104 qeth_close_dev(card);
1105 dev_warn(&card->gdev->dev, "The qeth device driver "
1106 "failed to recover an error on the device\n");
1107 }
1108 qeth_clear_recovery_task(card);
1109 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1110 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1111 return 0;
1112 }
1113
1114 static int __init qeth_l2_init(void)
1115 {
1116 pr_info("register layer 2 discipline\n");
1117 return 0;
1118 }
1119
1120 static void __exit qeth_l2_exit(void)
1121 {
1122 pr_info("unregister layer 2 discipline\n");
1123 }
1124
1125 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1126 {
1127 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1128
1129 netif_device_detach(card->dev);
1130 qeth_set_allowed_threads(card, 0, 1);
1131 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1132 if (gdev->state == CCWGROUP_OFFLINE)
1133 return 0;
1134 if (card->state == CARD_STATE_UP) {
1135 if (card->info.hwtrap)
1136 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1137 __qeth_l2_set_offline(card->gdev, 1);
1138 } else
1139 __qeth_l2_set_offline(card->gdev, 0);
1140 return 0;
1141 }
1142
1143 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1144 {
1145 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1146 int rc = 0;
1147
1148 if (card->state == CARD_STATE_RECOVER) {
1149 rc = __qeth_l2_set_online(card->gdev, 1);
1150 if (rc) {
1151 rtnl_lock();
1152 dev_close(card->dev);
1153 rtnl_unlock();
1154 }
1155 } else
1156 rc = __qeth_l2_set_online(card->gdev, 0);
1157
1158 qeth_set_allowed_threads(card, 0xffffffff, 0);
1159 netif_device_attach(card->dev);
1160 if (rc)
1161 dev_warn(&card->gdev->dev, "The qeth device driver "
1162 "failed to recover an error on the device\n");
1163 return rc;
1164 }
1165
1166 /* Returns zero if the command is successfully "consumed" */
1167 static int qeth_l2_control_event(struct qeth_card *card,
1168 struct qeth_ipa_cmd *cmd)
1169 {
1170 switch (cmd->hdr.command) {
1171 case IPA_CMD_SETBRIDGEPORT_OSA:
1172 case IPA_CMD_SETBRIDGEPORT_IQD:
1173 if (cmd->data.sbp.hdr.command_code ==
1174 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1175 qeth_bridge_state_change(card, cmd);
1176 return 0;
1177 } else
1178 return 1;
1179 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1180 qeth_bridge_host_event(card, cmd);
1181 return 0;
1182 default:
1183 return 1;
1184 }
1185 }
1186
1187 struct qeth_discipline qeth_l2_discipline = {
1188 .devtype = &qeth_l2_devtype,
1189 .process_rx_buffer = qeth_l2_process_inbound_buffer,
1190 .recover = qeth_l2_recover,
1191 .setup = qeth_l2_probe_device,
1192 .remove = qeth_l2_remove_device,
1193 .set_online = qeth_l2_set_online,
1194 .set_offline = qeth_l2_set_offline,
1195 .freeze = qeth_l2_pm_suspend,
1196 .thaw = qeth_l2_pm_resume,
1197 .restore = qeth_l2_pm_resume,
1198 .do_ioctl = NULL,
1199 .control_event_handler = qeth_l2_control_event,
1200 };
1201 EXPORT_SYMBOL_GPL(qeth_l2_discipline);
1202
1203 static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1204 struct qeth_cmd_buffer *iob)
1205 {
1206 struct qeth_channel *channel = iob->channel;
1207 int rc = 0;
1208
1209 QETH_CARD_TEXT(card, 5, "osndctrd");
1210
1211 wait_event(card->wait_q,
1212 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1213 qeth_prepare_control_data(card, len, iob);
1214 QETH_CARD_TEXT(card, 6, "osnoirqp");
1215 spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
1216 rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw,
1217 (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT);
1218 spin_unlock_irq(get_ccwdev_lock(channel->ccwdev));
1219 if (rc) {
1220 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1221 "ccw_device_start rc = %i\n", rc);
1222 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1223 qeth_release_buffer(channel, iob);
1224 atomic_set(&channel->irq_pending, 0);
1225 wake_up(&card->wait_q);
1226 }
1227 return rc;
1228 }
1229
1230 static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1231 struct qeth_cmd_buffer *iob, int data_len)
1232 {
1233 u16 s1, s2;
1234
1235 QETH_CARD_TEXT(card, 4, "osndipa");
1236
1237 qeth_prepare_ipa_cmd(card, iob);
1238 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1239 s2 = (u16)data_len;
1240 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1241 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1242 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1243 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1244 return qeth_osn_send_control_data(card, s1, iob);
1245 }
1246
1247 int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1248 {
1249 struct qeth_cmd_buffer *iob;
1250 struct qeth_card *card;
1251
1252 if (!dev)
1253 return -ENODEV;
1254 card = dev->ml_priv;
1255 if (!card)
1256 return -ENODEV;
1257 QETH_CARD_TEXT(card, 2, "osnsdmc");
1258 if (!qeth_card_hw_is_reachable(card))
1259 return -ENODEV;
1260 iob = qeth_wait_for_buffer(&card->write);
1261 memcpy(__ipa_cmd(iob), data, data_len);
1262 return qeth_osn_send_ipa_cmd(card, iob, data_len);
1263 }
1264 EXPORT_SYMBOL(qeth_osn_assist);
1265
1266 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1267 int (*assist_cb)(struct net_device *, void *),
1268 int (*data_cb)(struct sk_buff *))
1269 {
1270 struct qeth_card *card;
1271 char bus_id[16];
1272 u16 devno;
1273
1274 memcpy(&devno, read_dev_no, 2);
1275 sprintf(bus_id, "0.0.%04x", devno);
1276 card = qeth_get_card_by_busid(bus_id);
1277 if (!card || !IS_OSN(card))
1278 return -ENODEV;
1279 *dev = card->dev;
1280
1281 QETH_CARD_TEXT(card, 2, "osnreg");
1282 if ((assist_cb == NULL) || (data_cb == NULL))
1283 return -EINVAL;
1284 card->osn_info.assist_cb = assist_cb;
1285 card->osn_info.data_cb = data_cb;
1286 return 0;
1287 }
1288 EXPORT_SYMBOL(qeth_osn_register);
1289
1290 void qeth_osn_deregister(struct net_device *dev)
1291 {
1292 struct qeth_card *card;
1293
1294 if (!dev)
1295 return;
1296 card = dev->ml_priv;
1297 if (!card)
1298 return;
1299 QETH_CARD_TEXT(card, 2, "osndereg");
1300 card->osn_info.assist_cb = NULL;
1301 card->osn_info.data_cb = NULL;
1302 return;
1303 }
1304 EXPORT_SYMBOL(qeth_osn_deregister);
1305
1306 /* SETBRIDGEPORT support, async notifications */
1307
1308 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1309
1310 /**
1311 * qeth_bridge_emit_host_event() - bridgeport address change notification
1312 * @card: qeth_card structure pointer, for udev events.
1313 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1314 * and reset token and addr_lnid are unused and may be NULL.
1315 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1316 * object, 0 - addition of an object.
1317 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1318 * @token: "network token" structure identifying physical address of the port.
1319 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1320 *
1321 * This function is called when registrations and deregistrations are
1322 * reported by the hardware, and also when notifications are enabled -
1323 * for all currently registered addresses.
1324 */
1325 static void qeth_bridge_emit_host_event(struct qeth_card *card,
1326 enum qeth_an_event_type evtype,
1327 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1328 {
1329 char str[7][32];
1330 char *env[8];
1331 int i = 0;
1332
1333 switch (evtype) {
1334 case anev_reg_unreg:
1335 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1336 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1337 ? "deregister" : "register");
1338 env[i] = str[i]; i++;
1339 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1340 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1341 addr_lnid->lnid);
1342 env[i] = str[i]; i++;
1343 }
1344 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1345 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
1346 addr_lnid->mac);
1347 env[i] = str[i]; i++;
1348 }
1349 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1350 token->cssid, token->ssid, token->devnum);
1351 env[i] = str[i]; i++;
1352 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1353 env[i] = str[i]; i++;
1354 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1355 token->chpid);
1356 env[i] = str[i]; i++;
1357 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1358 env[i] = str[i]; i++;
1359 break;
1360 case anev_abort:
1361 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1362 env[i] = str[i]; i++;
1363 break;
1364 case anev_reset:
1365 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1366 env[i] = str[i]; i++;
1367 break;
1368 }
1369 env[i] = NULL;
1370 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1371 }
1372
1373 struct qeth_bridge_state_data {
1374 struct work_struct worker;
1375 struct qeth_card *card;
1376 struct qeth_sbp_state_change qports;
1377 };
1378
1379 static void qeth_bridge_state_change_worker(struct work_struct *work)
1380 {
1381 struct qeth_bridge_state_data *data =
1382 container_of(work, struct qeth_bridge_state_data, worker);
1383 /* We are only interested in the first entry - local port */
1384 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1385 char env_locrem[32];
1386 char env_role[32];
1387 char env_state[32];
1388 char *env[] = {
1389 env_locrem,
1390 env_role,
1391 env_state,
1392 NULL
1393 };
1394
1395 /* Role should not change by itself, but if it did, */
1396 /* information from the hardware is authoritative. */
1397 mutex_lock(&data->card->conf_mutex);
1398 data->card->options.sbp.role = entry->role;
1399 mutex_unlock(&data->card->conf_mutex);
1400
1401 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1402 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1403 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1404 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1405 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1406 "<INVALID>");
1407 snprintf(env_state, sizeof(env_state), "STATE=%s",
1408 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1409 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1410 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1411 "<INVALID>");
1412 kobject_uevent_env(&data->card->gdev->dev.kobj,
1413 KOBJ_CHANGE, env);
1414 kfree(data);
1415 }
1416
1417 static void qeth_bridge_state_change(struct qeth_card *card,
1418 struct qeth_ipa_cmd *cmd)
1419 {
1420 struct qeth_sbp_state_change *qports =
1421 &cmd->data.sbp.data.state_change;
1422 struct qeth_bridge_state_data *data;
1423 int extrasize;
1424
1425 QETH_CARD_TEXT(card, 2, "brstchng");
1426 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1427 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1428 return;
1429 }
1430 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1431 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1432 GFP_ATOMIC);
1433 if (!data) {
1434 QETH_CARD_TEXT(card, 2, "BPSalloc");
1435 return;
1436 }
1437 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1438 data->card = card;
1439 memcpy(&data->qports, qports,
1440 sizeof(struct qeth_sbp_state_change) + extrasize);
1441 queue_work(card->event_wq, &data->worker);
1442 }
1443
1444 struct qeth_bridge_host_data {
1445 struct work_struct worker;
1446 struct qeth_card *card;
1447 struct qeth_ipacmd_addr_change hostevs;
1448 };
1449
1450 static void qeth_bridge_host_event_worker(struct work_struct *work)
1451 {
1452 struct qeth_bridge_host_data *data =
1453 container_of(work, struct qeth_bridge_host_data, worker);
1454 int i;
1455
1456 if (data->hostevs.lost_event_mask) {
1457 dev_info(&data->card->gdev->dev,
1458 "Address notification from the Bridge Port stopped %s (%s)\n",
1459 data->card->dev->name,
1460 (data->hostevs.lost_event_mask == 0x01)
1461 ? "Overflow"
1462 : (data->hostevs.lost_event_mask == 0x02)
1463 ? "Bridge port state change"
1464 : "Unknown reason");
1465 mutex_lock(&data->card->conf_mutex);
1466 data->card->options.sbp.hostnotification = 0;
1467 mutex_unlock(&data->card->conf_mutex);
1468 qeth_bridge_emit_host_event(data->card, anev_abort,
1469 0, NULL, NULL);
1470 } else
1471 for (i = 0; i < data->hostevs.num_entries; i++) {
1472 struct qeth_ipacmd_addr_change_entry *entry =
1473 &data->hostevs.entry[i];
1474 qeth_bridge_emit_host_event(data->card,
1475 anev_reg_unreg,
1476 entry->change_code,
1477 &entry->token, &entry->addr_lnid);
1478 }
1479 kfree(data);
1480 }
1481
1482 static void qeth_bridge_host_event(struct qeth_card *card,
1483 struct qeth_ipa_cmd *cmd)
1484 {
1485 struct qeth_ipacmd_addr_change *hostevs =
1486 &cmd->data.addrchange;
1487 struct qeth_bridge_host_data *data;
1488 int extrasize;
1489
1490 QETH_CARD_TEXT(card, 2, "brhostev");
1491 if (cmd->hdr.return_code != 0x0000) {
1492 if (cmd->hdr.return_code == 0x0010) {
1493 if (hostevs->lost_event_mask == 0x00)
1494 hostevs->lost_event_mask = 0xff;
1495 } else {
1496 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1497 cmd->hdr.return_code);
1498 return;
1499 }
1500 }
1501 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1502 hostevs->num_entries;
1503 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1504 GFP_ATOMIC);
1505 if (!data) {
1506 QETH_CARD_TEXT(card, 2, "BPHalloc");
1507 return;
1508 }
1509 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1510 data->card = card;
1511 memcpy(&data->hostevs, hostevs,
1512 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1513 queue_work(card->event_wq, &data->worker);
1514 }
1515
1516 /* SETBRIDGEPORT support; sending commands */
1517
1518 struct _qeth_sbp_cbctl {
1519 u16 ipa_rc;
1520 u16 cmd_rc;
1521 union {
1522 u32 supported;
1523 struct {
1524 enum qeth_sbp_roles *role;
1525 enum qeth_sbp_states *state;
1526 } qports;
1527 } data;
1528 };
1529
1530 /**
1531 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1532 * @card: qeth_card structure pointer, for debug messages.
1533 * @cbctl: state structure with hardware return codes.
1534 * @setcmd: IPA command code
1535 *
1536 * Returns negative errno-compatible error indication or 0 on success.
1537 */
1538 static int qeth_bridgeport_makerc(struct qeth_card *card,
1539 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1540 {
1541 int rc;
1542 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
1543
1544 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1545 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
1546 switch (cbctl->cmd_rc) {
1547 case IPA_RC_SUCCESS:
1548 rc = 0;
1549 break;
1550 case IPA_RC_L2_UNSUPPORTED_CMD:
1551 case IPA_RC_UNSUPPORTED_COMMAND:
1552 rc = -EOPNOTSUPP;
1553 break;
1554 case IPA_RC_SBP_OSA_NOT_CONFIGURED:
1555 case IPA_RC_SBP_IQD_NOT_CONFIGURED:
1556 rc = -ENODEV; /* maybe not the best code here? */
1557 dev_err(&card->gdev->dev,
1558 "The device is not configured as a Bridge Port\n");
1559 break;
1560 case IPA_RC_SBP_OSA_OS_MISMATCH:
1561 case IPA_RC_SBP_IQD_OS_MISMATCH:
1562 rc = -EPERM;
1563 dev_err(&card->gdev->dev,
1564 "A Bridge Port is already configured by a different operating system\n");
1565 break;
1566 case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY:
1567 case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY:
1568 switch (setcmd) {
1569 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1570 rc = -EEXIST;
1571 dev_err(&card->gdev->dev,
1572 "The LAN already has a primary Bridge Port\n");
1573 break;
1574 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1575 rc = -EBUSY;
1576 dev_err(&card->gdev->dev,
1577 "The device is already a primary Bridge Port\n");
1578 break;
1579 default:
1580 rc = -EIO;
1581 }
1582 break;
1583 case IPA_RC_SBP_OSA_CURRENT_SECOND:
1584 case IPA_RC_SBP_IQD_CURRENT_SECOND:
1585 rc = -EBUSY;
1586 dev_err(&card->gdev->dev,
1587 "The device is already a secondary Bridge Port\n");
1588 break;
1589 case IPA_RC_SBP_OSA_LIMIT_SECOND:
1590 case IPA_RC_SBP_IQD_LIMIT_SECOND:
1591 rc = -EEXIST;
1592 dev_err(&card->gdev->dev,
1593 "The LAN cannot have more secondary Bridge Ports\n");
1594 break;
1595 case IPA_RC_SBP_OSA_CURRENT_PRIMARY:
1596 case IPA_RC_SBP_IQD_CURRENT_PRIMARY:
1597 rc = -EBUSY;
1598 dev_err(&card->gdev->dev,
1599 "The device is already a primary Bridge Port\n");
1600 break;
1601 case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN:
1602 case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN:
1603 rc = -EACCES;
1604 dev_err(&card->gdev->dev,
1605 "The device is not authorized to be a Bridge Port\n");
1606 break;
1607 default:
1608 rc = -EIO;
1609 }
1610 else
1611 switch (cbctl->ipa_rc) {
1612 case IPA_RC_NOTSUPP:
1613 rc = -EOPNOTSUPP;
1614 break;
1615 case IPA_RC_UNSUPPORTED_COMMAND:
1616 rc = -EOPNOTSUPP;
1617 break;
1618 default:
1619 rc = -EIO;
1620 }
1621
1622 if (rc) {
1623 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1624 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1625 }
1626 return rc;
1627 }
1628
1629 static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card,
1630 enum qeth_ipa_sbp_cmd sbp_cmd,
1631 unsigned int cmd_length)
1632 {
1633 enum qeth_ipa_cmds ipa_cmd = (card->info.type == QETH_CARD_TYPE_IQD) ?
1634 IPA_CMD_SETBRIDGEPORT_IQD :
1635 IPA_CMD_SETBRIDGEPORT_OSA;
1636 struct qeth_cmd_buffer *iob;
1637 struct qeth_ipa_cmd *cmd;
1638
1639 iob = qeth_get_ipacmd_buffer(card, ipa_cmd, 0);
1640 if (!iob)
1641 return iob;
1642 cmd = __ipa_cmd(iob);
1643 cmd->data.sbp.hdr.cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1644 cmd_length;
1645 cmd->data.sbp.hdr.command_code = sbp_cmd;
1646 cmd->data.sbp.hdr.used_total = 1;
1647 cmd->data.sbp.hdr.seq_no = 1;
1648 return iob;
1649 }
1650
1651 static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1652 struct qeth_reply *reply, unsigned long data)
1653 {
1654 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1655 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1656 QETH_CARD_TEXT(card, 2, "brqsupcb");
1657 cbctl->ipa_rc = cmd->hdr.return_code;
1658 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1659 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1660 cbctl->data.supported =
1661 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1662 } else {
1663 cbctl->data.supported = 0;
1664 }
1665 return 0;
1666 }
1667
1668 /**
1669 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1670 * @card: qeth_card structure pointer.
1671 *
1672 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1673 * strucutre: card->options.sbp.supported_funcs.
1674 */
1675 static void qeth_bridgeport_query_support(struct qeth_card *card)
1676 {
1677 struct qeth_cmd_buffer *iob;
1678 struct _qeth_sbp_cbctl cbctl;
1679
1680 QETH_CARD_TEXT(card, 2, "brqsuppo");
1681 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED,
1682 sizeof(struct qeth_sbp_query_cmds_supp));
1683 if (!iob)
1684 return;
1685 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1686 (void *)&cbctl) ||
1687 qeth_bridgeport_makerc(card, &cbctl,
1688 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1689 /* non-zero makerc signifies failure, and produce messages */
1690 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1691 return;
1692 }
1693 card->options.sbp.supported_funcs = cbctl.data.supported;
1694 }
1695
1696 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1697 struct qeth_reply *reply, unsigned long data)
1698 {
1699 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1700 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1701 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1702
1703 QETH_CARD_TEXT(card, 2, "brqprtcb");
1704 cbctl->ipa_rc = cmd->hdr.return_code;
1705 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1706 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1707 return 0;
1708 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1709 cbctl->cmd_rc = 0xffff;
1710 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1711 return 0;
1712 }
1713 /* first entry contains the state of the local port */
1714 if (qports->num_entries > 0) {
1715 if (cbctl->data.qports.role)
1716 *cbctl->data.qports.role = qports->entry[0].role;
1717 if (cbctl->data.qports.state)
1718 *cbctl->data.qports.state = qports->entry[0].state;
1719 }
1720 return 0;
1721 }
1722
1723 /**
1724 * qeth_bridgeport_query_ports() - query local bridgeport status.
1725 * @card: qeth_card structure pointer.
1726 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1727 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1728 *
1729 * Returns negative errno-compatible error indication or 0 on success.
1730 *
1731 * 'role' and 'state' are not updated in case of hardware operation failure.
1732 */
1733 int qeth_bridgeport_query_ports(struct qeth_card *card,
1734 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1735 {
1736 int rc = 0;
1737 struct qeth_cmd_buffer *iob;
1738 struct _qeth_sbp_cbctl cbctl = {
1739 .data = {
1740 .qports = {
1741 .role = role,
1742 .state = state,
1743 },
1744 },
1745 };
1746
1747 QETH_CARD_TEXT(card, 2, "brqports");
1748 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1749 return -EOPNOTSUPP;
1750 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0);
1751 if (!iob)
1752 return -ENOMEM;
1753 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1754 (void *)&cbctl);
1755 if (rc < 0)
1756 return rc;
1757 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
1758 }
1759
1760 static int qeth_bridgeport_set_cb(struct qeth_card *card,
1761 struct qeth_reply *reply, unsigned long data)
1762 {
1763 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1764 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1765 QETH_CARD_TEXT(card, 2, "brsetrcb");
1766 cbctl->ipa_rc = cmd->hdr.return_code;
1767 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1768 return 0;
1769 }
1770
1771 /**
1772 * qeth_bridgeport_setrole() - Assign primary role to the port.
1773 * @card: qeth_card structure pointer.
1774 * @role: Role to assign.
1775 *
1776 * Returns negative errno-compatible error indication or 0 on success.
1777 */
1778 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1779 {
1780 int rc = 0;
1781 int cmdlength;
1782 struct qeth_cmd_buffer *iob;
1783 struct _qeth_sbp_cbctl cbctl;
1784 enum qeth_ipa_sbp_cmd setcmd;
1785
1786 QETH_CARD_TEXT(card, 2, "brsetrol");
1787 switch (role) {
1788 case QETH_SBP_ROLE_NONE:
1789 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1790 cmdlength = sizeof(struct qeth_sbp_reset_role);
1791 break;
1792 case QETH_SBP_ROLE_PRIMARY:
1793 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1794 cmdlength = sizeof(struct qeth_sbp_set_primary);
1795 break;
1796 case QETH_SBP_ROLE_SECONDARY:
1797 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1798 cmdlength = sizeof(struct qeth_sbp_set_secondary);
1799 break;
1800 default:
1801 return -EINVAL;
1802 }
1803 if (!(card->options.sbp.supported_funcs & setcmd))
1804 return -EOPNOTSUPP;
1805 iob = qeth_sbp_build_cmd(card, setcmd, cmdlength);
1806 if (!iob)
1807 return -ENOMEM;
1808 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1809 (void *)&cbctl);
1810 if (rc < 0)
1811 return rc;
1812 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
1813 }
1814
1815 /**
1816 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1817 * @card: qeth_card structure pointer, for debug messages.
1818 *
1819 * Returns negative errno-compatible error indication or 0 on success.
1820 */
1821 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1822 {
1823 int rc;
1824
1825 if (pnso_rc == 0)
1826 switch (response) {
1827 case 0x0001:
1828 rc = 0;
1829 break;
1830 case 0x0004:
1831 case 0x0100:
1832 case 0x0106:
1833 rc = -EOPNOTSUPP;
1834 dev_err(&card->gdev->dev,
1835 "Setting address notification failed\n");
1836 break;
1837 case 0x0107:
1838 rc = -EAGAIN;
1839 break;
1840 default:
1841 rc = -EIO;
1842 }
1843 else
1844 rc = -EIO;
1845
1846 if (rc) {
1847 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1848 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1849 }
1850 return rc;
1851 }
1852
1853 static void qeth_bridgeport_an_set_cb(void *priv,
1854 enum qdio_brinfo_entry_type type, void *entry)
1855 {
1856 struct qeth_card *card = (struct qeth_card *)priv;
1857 struct qdio_brinfo_entry_l2 *l2entry;
1858 u8 code;
1859
1860 if (type != l2_addr_lnid) {
1861 WARN_ON_ONCE(1);
1862 return;
1863 }
1864
1865 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1866 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1867 if (l2entry->addr_lnid.lnid)
1868 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1869 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1870 (struct net_if_token *)&l2entry->nit,
1871 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1872 }
1873
1874 /**
1875 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1876 * @card: qeth_card structure pointer.
1877 * @enable: 0 - disable, non-zero - enable notifications
1878 *
1879 * Returns negative errno-compatible error indication or 0 on success.
1880 *
1881 * On enable, emits a series of address notifications udev events for all
1882 * currently registered hosts.
1883 */
1884 int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1885 {
1886 int rc;
1887 u16 response;
1888 struct ccw_device *ddev;
1889 struct subchannel_id schid;
1890
1891 if (!card)
1892 return -EINVAL;
1893 if (!card->options.sbp.supported_funcs)
1894 return -EOPNOTSUPP;
1895 ddev = CARD_DDEV(card);
1896 ccw_device_get_schid(ddev, &schid);
1897
1898 if (enable) {
1899 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1900 rc = qdio_pnso_brinfo(schid, 1, &response,
1901 qeth_bridgeport_an_set_cb, card);
1902 } else
1903 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1904 return qeth_anset_makerc(card, rc, response);
1905 }
1906
1907 static bool qeth_bridgeport_is_in_use(struct qeth_card *card)
1908 {
1909 return (card->options.sbp.role || card->options.sbp.reflect_promisc ||
1910 card->options.sbp.hostnotification);
1911 }
1912
1913 /* VNIC Characteristics support */
1914
1915 /* handle VNICC IPA command return codes; convert to error codes */
1916 static int qeth_l2_vnicc_makerc(struct qeth_card *card, int ipa_rc)
1917 {
1918 int rc;
1919
1920 switch (ipa_rc) {
1921 case IPA_RC_SUCCESS:
1922 return ipa_rc;
1923 case IPA_RC_L2_UNSUPPORTED_CMD:
1924 case IPA_RC_NOTSUPP:
1925 rc = -EOPNOTSUPP;
1926 break;
1927 case IPA_RC_VNICC_OOSEQ:
1928 rc = -EALREADY;
1929 break;
1930 case IPA_RC_VNICC_VNICBP:
1931 rc = -EBUSY;
1932 break;
1933 case IPA_RC_L2_ADDR_TABLE_FULL:
1934 rc = -ENOSPC;
1935 break;
1936 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
1937 rc = -EACCES;
1938 break;
1939 default:
1940 rc = -EIO;
1941 }
1942
1943 QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc);
1944 return rc;
1945 }
1946
1947 /* generic VNICC request call back control */
1948 struct _qeth_l2_vnicc_request_cbctl {
1949 u32 sub_cmd;
1950 struct {
1951 u32 vnic_char;
1952 u32 timeout;
1953 } param;
1954 struct {
1955 union{
1956 u32 *sup_cmds;
1957 u32 *timeout;
1958 };
1959 } result;
1960 };
1961
1962 /* generic VNICC request call back */
1963 static int qeth_l2_vnicc_request_cb(struct qeth_card *card,
1964 struct qeth_reply *reply,
1965 unsigned long data)
1966 {
1967 struct _qeth_l2_vnicc_request_cbctl *cbctl =
1968 (struct _qeth_l2_vnicc_request_cbctl *) reply->param;
1969 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1970 struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc;
1971
1972 QETH_CARD_TEXT(card, 2, "vniccrcb");
1973 if (cmd->hdr.return_code)
1974 return 0;
1975 /* return results to caller */
1976 card->options.vnicc.sup_chars = rep->hdr.sup;
1977 card->options.vnicc.cur_chars = rep->hdr.cur;
1978
1979 if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS)
1980 *cbctl->result.sup_cmds = rep->query_cmds.sup_cmds;
1981
1982 if (cbctl->sub_cmd == IPA_VNICC_GET_TIMEOUT)
1983 *cbctl->result.timeout = rep->getset_timeout.timeout;
1984
1985 return 0;
1986 }
1987
1988 /* generic VNICC request */
1989 static int qeth_l2_vnicc_request(struct qeth_card *card,
1990 struct _qeth_l2_vnicc_request_cbctl *cbctl)
1991 {
1992 struct qeth_ipacmd_vnicc *req;
1993 struct qeth_cmd_buffer *iob;
1994 struct qeth_ipa_cmd *cmd;
1995 int rc;
1996
1997 QETH_CARD_TEXT(card, 2, "vniccreq");
1998
1999 /* get new buffer for request */
2000 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_VNICC, 0);
2001 if (!iob)
2002 return -ENOMEM;
2003
2004 /* create header for request */
2005 cmd = __ipa_cmd(iob);
2006 req = &cmd->data.vnicc;
2007
2008 /* create sub command header for request */
2009 req->sub_hdr.data_length = sizeof(req->sub_hdr);
2010 req->sub_hdr.sub_command = cbctl->sub_cmd;
2011
2012 /* create sub command specific request fields */
2013 switch (cbctl->sub_cmd) {
2014 case IPA_VNICC_QUERY_CHARS:
2015 break;
2016 case IPA_VNICC_QUERY_CMDS:
2017 req->sub_hdr.data_length += sizeof(req->query_cmds);
2018 req->query_cmds.vnic_char = cbctl->param.vnic_char;
2019 break;
2020 case IPA_VNICC_ENABLE:
2021 case IPA_VNICC_DISABLE:
2022 req->sub_hdr.data_length += sizeof(req->set_char);
2023 req->set_char.vnic_char = cbctl->param.vnic_char;
2024 break;
2025 case IPA_VNICC_SET_TIMEOUT:
2026 req->getset_timeout.timeout = cbctl->param.timeout;
2027 /* fallthrough */
2028 case IPA_VNICC_GET_TIMEOUT:
2029 req->sub_hdr.data_length += sizeof(req->getset_timeout);
2030 req->getset_timeout.vnic_char = cbctl->param.vnic_char;
2031 break;
2032 default:
2033 qeth_release_buffer(iob->channel, iob);
2034 return -EOPNOTSUPP;
2035 }
2036
2037 /* send request */
2038 rc = qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb,
2039 (void *) cbctl);
2040
2041 return qeth_l2_vnicc_makerc(card, rc);
2042 }
2043
2044 /* VNICC query VNIC characteristics request */
2045 static int qeth_l2_vnicc_query_chars(struct qeth_card *card)
2046 {
2047 struct _qeth_l2_vnicc_request_cbctl cbctl;
2048
2049 /* prepare callback control */
2050 cbctl.sub_cmd = IPA_VNICC_QUERY_CHARS;
2051
2052 QETH_CARD_TEXT(card, 2, "vniccqch");
2053 return qeth_l2_vnicc_request(card, &cbctl);
2054 }
2055
2056 /* VNICC query sub commands request */
2057 static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char,
2058 u32 *sup_cmds)
2059 {
2060 struct _qeth_l2_vnicc_request_cbctl cbctl;
2061
2062 /* prepare callback control */
2063 cbctl.sub_cmd = IPA_VNICC_QUERY_CMDS;
2064 cbctl.param.vnic_char = vnic_char;
2065 cbctl.result.sup_cmds = sup_cmds;
2066
2067 QETH_CARD_TEXT(card, 2, "vniccqcm");
2068 return qeth_l2_vnicc_request(card, &cbctl);
2069 }
2070
2071 /* VNICC enable/disable characteristic request */
2072 static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char,
2073 u32 cmd)
2074 {
2075 struct _qeth_l2_vnicc_request_cbctl cbctl;
2076
2077 /* prepare callback control */
2078 cbctl.sub_cmd = cmd;
2079 cbctl.param.vnic_char = vnic_char;
2080
2081 QETH_CARD_TEXT(card, 2, "vniccedc");
2082 return qeth_l2_vnicc_request(card, &cbctl);
2083 }
2084
2085 /* VNICC get/set timeout for characteristic request */
2086 static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc,
2087 u32 cmd, u32 *timeout)
2088 {
2089 struct _qeth_l2_vnicc_request_cbctl cbctl;
2090
2091 /* prepare callback control */
2092 cbctl.sub_cmd = cmd;
2093 cbctl.param.vnic_char = vnicc;
2094 if (cmd == IPA_VNICC_SET_TIMEOUT)
2095 cbctl.param.timeout = *timeout;
2096 if (cmd == IPA_VNICC_GET_TIMEOUT)
2097 cbctl.result.timeout = timeout;
2098
2099 QETH_CARD_TEXT(card, 2, "vniccgst");
2100 return qeth_l2_vnicc_request(card, &cbctl);
2101 }
2102
2103 /* set current VNICC flag state; called from sysfs store function */
2104 int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state)
2105 {
2106 int rc = 0;
2107 u32 cmd;
2108
2109 QETH_CARD_TEXT(card, 2, "vniccsch");
2110
2111 /* do not change anything if BridgePort is enabled */
2112 if (qeth_bridgeport_is_in_use(card))
2113 return -EBUSY;
2114
2115 /* check if characteristic and enable/disable are supported */
2116 if (!(card->options.vnicc.sup_chars & vnicc) ||
2117 !(card->options.vnicc.set_char_sup & vnicc))
2118 return -EOPNOTSUPP;
2119
2120 /* set enable/disable command and store wanted characteristic */
2121 if (state) {
2122 cmd = IPA_VNICC_ENABLE;
2123 card->options.vnicc.wanted_chars |= vnicc;
2124 } else {
2125 cmd = IPA_VNICC_DISABLE;
2126 card->options.vnicc.wanted_chars &= ~vnicc;
2127 }
2128
2129 /* do we need to do anything? */
2130 if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars)
2131 return rc;
2132
2133 /* if card is not ready, simply stop here */
2134 if (!qeth_card_hw_is_reachable(card)) {
2135 if (state)
2136 card->options.vnicc.cur_chars |= vnicc;
2137 else
2138 card->options.vnicc.cur_chars &= ~vnicc;
2139 return rc;
2140 }
2141
2142 rc = qeth_l2_vnicc_set_char(card, vnicc, cmd);
2143 if (rc)
2144 card->options.vnicc.wanted_chars =
2145 card->options.vnicc.cur_chars;
2146 else {
2147 /* successful online VNICC change; handle special cases */
2148 if (state && vnicc == QETH_VNICC_RX_BCAST)
2149 card->options.vnicc.rx_bcast_enabled = true;
2150 if (!state && vnicc == QETH_VNICC_LEARNING)
2151 qeth_l2_vnicc_recover_timeout(card, vnicc,
2152 &card->options.vnicc.learning_timeout);
2153 }
2154
2155 return rc;
2156 }
2157
2158 /* get current VNICC flag state; called from sysfs show function */
2159 int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state)
2160 {
2161 int rc = 0;
2162
2163 QETH_CARD_TEXT(card, 2, "vniccgch");
2164
2165 /* do not get anything if BridgePort is enabled */
2166 if (qeth_bridgeport_is_in_use(card))
2167 return -EBUSY;
2168
2169 /* check if characteristic is supported */
2170 if (!(card->options.vnicc.sup_chars & vnicc))
2171 return -EOPNOTSUPP;
2172
2173 /* if card is ready, query current VNICC state */
2174 if (qeth_card_hw_is_reachable(card))
2175 rc = qeth_l2_vnicc_query_chars(card);
2176
2177 *state = (card->options.vnicc.cur_chars & vnicc) ? true : false;
2178 return rc;
2179 }
2180
2181 /* set VNICC timeout; called from sysfs store function. Currently, only learning
2182 * supports timeout
2183 */
2184 int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout)
2185 {
2186 int rc = 0;
2187
2188 QETH_CARD_TEXT(card, 2, "vniccsto");
2189
2190 /* do not change anything if BridgePort is enabled */
2191 if (qeth_bridgeport_is_in_use(card))
2192 return -EBUSY;
2193
2194 /* check if characteristic and set_timeout are supported */
2195 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
2196 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
2197 return -EOPNOTSUPP;
2198
2199 /* do we need to do anything? */
2200 if (card->options.vnicc.learning_timeout == timeout)
2201 return rc;
2202
2203 /* if card is not ready, simply store the value internally and return */
2204 if (!qeth_card_hw_is_reachable(card)) {
2205 card->options.vnicc.learning_timeout = timeout;
2206 return rc;
2207 }
2208
2209 /* send timeout value to card; if successful, store value internally */
2210 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
2211 IPA_VNICC_SET_TIMEOUT, &timeout);
2212 if (!rc)
2213 card->options.vnicc.learning_timeout = timeout;
2214
2215 return rc;
2216 }
2217
2218 /* get current VNICC timeout; called from sysfs show function. Currently, only
2219 * learning supports timeout
2220 */
2221 int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout)
2222 {
2223 int rc = 0;
2224
2225 QETH_CARD_TEXT(card, 2, "vniccgto");
2226
2227 /* do not get anything if BridgePort is enabled */
2228 if (qeth_bridgeport_is_in_use(card))
2229 return -EBUSY;
2230
2231 /* check if characteristic and get_timeout are supported */
2232 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) ||
2233 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING))
2234 return -EOPNOTSUPP;
2235 /* if card is ready, get timeout. Otherwise, just return stored value */
2236 *timeout = card->options.vnicc.learning_timeout;
2237 if (qeth_card_hw_is_reachable(card))
2238 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING,
2239 IPA_VNICC_GET_TIMEOUT,
2240 timeout);
2241
2242 return rc;
2243 }
2244
2245 /* check if VNICC is currently enabled */
2246 bool qeth_l2_vnicc_is_in_use(struct qeth_card *card)
2247 {
2248 /* if everything is turned off, VNICC is not active */
2249 if (!card->options.vnicc.cur_chars)
2250 return false;
2251 /* default values are only OK if rx_bcast was not enabled by user
2252 * or the card is offline.
2253 */
2254 if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) {
2255 if (!card->options.vnicc.rx_bcast_enabled ||
2256 !qeth_card_hw_is_reachable(card))
2257 return false;
2258 }
2259 return true;
2260 }
2261
2262 /* recover user timeout setting */
2263 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc,
2264 u32 *timeout)
2265 {
2266 if (card->options.vnicc.sup_chars & vnicc &&
2267 card->options.vnicc.getset_timeout_sup & vnicc &&
2268 !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT,
2269 timeout))
2270 return false;
2271 *timeout = QETH_VNICC_DEFAULT_TIMEOUT;
2272 return true;
2273 }
2274
2275 /* recover user characteristic setting */
2276 static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc,
2277 bool enable)
2278 {
2279 u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE;
2280
2281 if (card->options.vnicc.sup_chars & vnicc &&
2282 card->options.vnicc.set_char_sup & vnicc &&
2283 !qeth_l2_vnicc_set_char(card, vnicc, cmd))
2284 return false;
2285 card->options.vnicc.wanted_chars &= ~vnicc;
2286 card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc;
2287 return true;
2288 }
2289
2290 /* (re-)initialize VNICC */
2291 static void qeth_l2_vnicc_init(struct qeth_card *card)
2292 {
2293 u32 *timeout = &card->options.vnicc.learning_timeout;
2294 unsigned int chars_len, i;
2295 unsigned long chars_tmp;
2296 u32 sup_cmds, vnicc;
2297 bool enable, error;
2298
2299 QETH_CARD_TEXT(card, 2, "vniccini");
2300 /* reset rx_bcast */
2301 card->options.vnicc.rx_bcast_enabled = 0;
2302 /* initial query and storage of VNIC characteristics */
2303 if (qeth_l2_vnicc_query_chars(card)) {
2304 if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT ||
2305 *timeout != QETH_VNICC_DEFAULT_TIMEOUT)
2306 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n");
2307 /* fail quietly if user didn't change the default config */
2308 card->options.vnicc.sup_chars = 0;
2309 card->options.vnicc.cur_chars = 0;
2310 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT;
2311 return;
2312 }
2313 /* get supported commands for each supported characteristic */
2314 chars_tmp = card->options.vnicc.sup_chars;
2315 chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE;
2316 for_each_set_bit(i, &chars_tmp, chars_len) {
2317 vnicc = BIT(i);
2318 qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds);
2319 if (!(sup_cmds & IPA_VNICC_SET_TIMEOUT) ||
2320 !(sup_cmds & IPA_VNICC_GET_TIMEOUT))
2321 card->options.vnicc.getset_timeout_sup &= ~vnicc;
2322 if (!(sup_cmds & IPA_VNICC_ENABLE) ||
2323 !(sup_cmds & IPA_VNICC_DISABLE))
2324 card->options.vnicc.set_char_sup &= ~vnicc;
2325 }
2326 /* enforce assumed default values and recover settings, if changed */
2327 error = qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING,
2328 timeout);
2329 chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT;
2330 chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE;
2331 chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE;
2332 for_each_set_bit(i, &chars_tmp, chars_len) {
2333 vnicc = BIT(i);
2334 enable = card->options.vnicc.wanted_chars & vnicc;
2335 error |= qeth_l2_vnicc_recover_char(card, vnicc, enable);
2336 }
2337 if (error)
2338 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n");
2339 }
2340
2341 /* configure default values of VNIC characteristics */
2342 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card)
2343 {
2344 /* characteristics values */
2345 card->options.vnicc.sup_chars = QETH_VNICC_ALL;
2346 card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT;
2347 card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT;
2348 /* supported commands */
2349 card->options.vnicc.set_char_sup = QETH_VNICC_ALL;
2350 card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING;
2351 /* settings wanted by users */
2352 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT;
2353 }
2354
2355 module_init(qeth_l2_init);
2356 module_exit(qeth_l2_exit);
2357 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2358 MODULE_DESCRIPTION("qeth layer 2 discipline");
2359 MODULE_LICENSE("GPL");
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