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9#define KMSG_COMPONENT "qeth"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/string.h>
15#include <linux/errno.h>
16#include <linux/kernel.h>
17#include <linux/slab.h>
18#include <linux/etherdevice.h>
19#include <linux/mii.h>
20#include <linux/ip.h>
21#include <linux/list.h>
22
23#include "qeth_core.h"
24#include "qeth_l2.h"
25
26static int qeth_l2_set_offline(struct ccwgroup_device *);
27static int qeth_l2_stop(struct net_device *);
28static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
29static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
30 enum qeth_ipa_cmds);
31static void qeth_l2_set_multicast_list(struct net_device *);
32static int qeth_l2_recover(void *);
33static void qeth_bridgeport_query_support(struct qeth_card *card);
34static void qeth_bridge_state_change(struct qeth_card *card,
35 struct qeth_ipa_cmd *cmd);
36static void qeth_bridge_host_event(struct qeth_card *card,
37 struct qeth_ipa_cmd *cmd);
38
39static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
40{
41 struct qeth_card *card = dev->ml_priv;
42 struct mii_ioctl_data *mii_data;
43 int rc = 0;
44
45 if (!card)
46 return -ENODEV;
47
48 if (!qeth_card_hw_is_reachable(card))
49 return -ENODEV;
50
51 if (card->info.type == QETH_CARD_TYPE_OSN)
52 return -EPERM;
53
54 switch (cmd) {
55 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
56 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
57 break;
58 case SIOC_QETH_GET_CARD_TYPE:
59 if ((card->info.type == QETH_CARD_TYPE_OSD ||
60 card->info.type == QETH_CARD_TYPE_OSM ||
61 card->info.type == QETH_CARD_TYPE_OSX) &&
62 !card->info.guestlan)
63 return 1;
64 return 0;
65 break;
66 case SIOCGMIIPHY:
67 mii_data = if_mii(rq);
68 mii_data->phy_id = 0;
69 break;
70 case SIOCGMIIREG:
71 mii_data = if_mii(rq);
72 if (mii_data->phy_id != 0)
73 rc = -EINVAL;
74 else
75 mii_data->val_out = qeth_mdio_read(dev,
76 mii_data->phy_id, mii_data->reg_num);
77 break;
78 case SIOC_QETH_QUERY_OAT:
79 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
80 break;
81 default:
82 rc = -EOPNOTSUPP;
83 }
84 if (rc)
85 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
86 return rc;
87}
88
89static int qeth_l2_verify_dev(struct net_device *dev)
90{
91 struct qeth_card *card;
92 unsigned long flags;
93 int rc = 0;
94
95 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
96 list_for_each_entry(card, &qeth_core_card_list.list, list) {
97 if (card->dev == dev) {
98 rc = QETH_REAL_CARD;
99 break;
100 }
101 }
102 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
103
104 return rc;
105}
106
107static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
108{
109 struct qeth_card *card;
110 struct net_device *ndev;
111 __u16 temp_dev_no;
112 unsigned long flags;
113 struct ccw_dev_id read_devid;
114
115 ndev = NULL;
116 memcpy(&temp_dev_no, read_dev_no, 2);
117 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
118 list_for_each_entry(card, &qeth_core_card_list.list, list) {
119 ccw_device_get_id(CARD_RDEV(card), &read_devid);
120 if (read_devid.devno == temp_dev_no) {
121 ndev = card->dev;
122 break;
123 }
124 }
125 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
126 return ndev;
127}
128
129static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
130{
131 int rc;
132
133 if (retcode)
134 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
135 switch (retcode) {
136 case IPA_RC_SUCCESS:
137 rc = 0;
138 break;
139 case IPA_RC_L2_UNSUPPORTED_CMD:
140 rc = -ENOSYS;
141 break;
142 case IPA_RC_L2_ADDR_TABLE_FULL:
143 rc = -ENOSPC;
144 break;
145 case IPA_RC_L2_DUP_MAC:
146 case IPA_RC_L2_DUP_LAYER3_MAC:
147 rc = -EEXIST;
148 break;
149 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
150 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
151 rc = -EPERM;
152 break;
153 case IPA_RC_L2_MAC_NOT_FOUND:
154 rc = -ENOENT;
155 break;
156 case -ENOMEM:
157 rc = -ENOMEM;
158 break;
159 default:
160 rc = -EIO;
161 break;
162 }
163 return rc;
164}
165
166static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
167{
168 int rc;
169
170 QETH_CARD_TEXT(card, 2, "L2Sgmac");
171 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
172 IPA_CMD_SETGMAC));
173 if (rc == -EEXIST)
174 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
175 mac, QETH_CARD_IFNAME(card));
176 else if (rc)
177 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n",
178 mac, QETH_CARD_IFNAME(card), rc);
179 return rc;
180}
181
182static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
183{
184 int rc;
185
186 QETH_CARD_TEXT(card, 2, "L2Dgmac");
187 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
188 IPA_CMD_DELGMAC));
189 if (rc)
190 QETH_DBF_MESSAGE(2,
191 "Could not delete group MAC %pM on %s: %d\n",
192 mac, QETH_CARD_IFNAME(card), rc);
193 return rc;
194}
195
196static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac)
197{
198 struct qeth_mc_mac *mc;
199 int rc;
200
201 mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC);
202
203 if (!mc)
204 return;
205
206 memcpy(mc->mc_addr, mac, OSA_ADDR_LEN);
207 mc->mc_addrlen = OSA_ADDR_LEN;
208 mc->is_vmac = vmac;
209
210 if (vmac) {
211 rc = qeth_setdel_makerc(card,
212 qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC));
213 } else {
214 rc = qeth_setdel_makerc(card,
215 qeth_l2_send_setgroupmac(card, mac));
216 }
217
218 if (!rc)
219 list_add_tail(&mc->list, &card->mc_list);
220 else
221 kfree(mc);
222}
223
224static void qeth_l2_del_all_mc(struct qeth_card *card, int del)
225{
226 struct qeth_mc_mac *mc, *tmp;
227
228 spin_lock_bh(&card->mclock);
229 list_for_each_entry_safe(mc, tmp, &card->mc_list, list) {
230 if (del) {
231 if (mc->is_vmac)
232 qeth_l2_send_setdelmac(card, mc->mc_addr,
233 IPA_CMD_DELVMAC);
234 else
235 qeth_l2_send_delgroupmac(card, mc->mc_addr);
236 }
237 list_del(&mc->list);
238 kfree(mc);
239 }
240 spin_unlock_bh(&card->mclock);
241}
242
243static inline int qeth_l2_get_cast_type(struct qeth_card *card,
244 struct sk_buff *skb)
245{
246 if (card->info.type == QETH_CARD_TYPE_OSN)
247 return RTN_UNSPEC;
248 if (is_broadcast_ether_addr(skb->data))
249 return RTN_BROADCAST;
250 if (is_multicast_ether_addr(skb->data))
251 return RTN_MULTICAST;
252 return RTN_UNSPEC;
253}
254
255static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
256 struct sk_buff *skb, int cast_type)
257{
258 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
259
260 memset(hdr, 0, sizeof(struct qeth_hdr));
261 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
262
263
264 if (cast_type == RTN_MULTICAST)
265 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
266 else if (cast_type == RTN_BROADCAST)
267 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
268 else
269 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
270
271 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
272
273
274
275 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
276 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
277 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
278 }
279}
280
281static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
282 struct qeth_reply *reply, unsigned long data)
283{
284 struct qeth_ipa_cmd *cmd;
285
286 QETH_CARD_TEXT(card, 2, "L2sdvcb");
287 cmd = (struct qeth_ipa_cmd *) data;
288 if (cmd->hdr.return_code) {
289 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
290 "Continuing\n", cmd->data.setdelvlan.vlan_id,
291 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
292 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
293 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
294 }
295 return 0;
296}
297
298static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
299 enum qeth_ipa_cmds ipacmd)
300{
301 struct qeth_ipa_cmd *cmd;
302 struct qeth_cmd_buffer *iob;
303
304 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
305 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
306 if (!iob)
307 return -ENOMEM;
308 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
309 cmd->data.setdelvlan.vlan_id = i;
310 return qeth_send_ipa_cmd(card, iob,
311 qeth_l2_send_setdelvlan_cb, NULL);
312}
313
314static void qeth_l2_process_vlans(struct qeth_card *card)
315{
316 struct qeth_vlan_vid *id;
317 QETH_CARD_TEXT(card, 3, "L2prcvln");
318 spin_lock_bh(&card->vlanlock);
319 list_for_each_entry(id, &card->vid_list, list) {
320 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
321 }
322 spin_unlock_bh(&card->vlanlock);
323}
324
325static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
326 __be16 proto, u16 vid)
327{
328 struct qeth_card *card = dev->ml_priv;
329 struct qeth_vlan_vid *id;
330 int rc;
331
332 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
333 if (!vid)
334 return 0;
335 if (card->info.type == QETH_CARD_TYPE_OSM) {
336 QETH_CARD_TEXT(card, 3, "aidOSM");
337 return 0;
338 }
339 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
340 QETH_CARD_TEXT(card, 3, "aidREC");
341 return 0;
342 }
343 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
344 if (id) {
345 id->vid = vid;
346 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
347 if (rc) {
348 kfree(id);
349 return rc;
350 }
351 spin_lock_bh(&card->vlanlock);
352 list_add_tail(&id->list, &card->vid_list);
353 spin_unlock_bh(&card->vlanlock);
354 } else {
355 return -ENOMEM;
356 }
357 return 0;
358}
359
360static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
361 __be16 proto, u16 vid)
362{
363 struct qeth_vlan_vid *id, *tmpid = NULL;
364 struct qeth_card *card = dev->ml_priv;
365 int rc = 0;
366
367 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
368 if (card->info.type == QETH_CARD_TYPE_OSM) {
369 QETH_CARD_TEXT(card, 3, "kidOSM");
370 return 0;
371 }
372 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
373 QETH_CARD_TEXT(card, 3, "kidREC");
374 return 0;
375 }
376 spin_lock_bh(&card->vlanlock);
377 list_for_each_entry(id, &card->vid_list, list) {
378 if (id->vid == vid) {
379 list_del(&id->list);
380 tmpid = id;
381 break;
382 }
383 }
384 spin_unlock_bh(&card->vlanlock);
385 if (tmpid) {
386 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
387 kfree(tmpid);
388 }
389 qeth_l2_set_multicast_list(card->dev);
390 return rc;
391}
392
393static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
394{
395 int rc = 0;
396
397 QETH_DBF_TEXT(SETUP , 2, "stopcard");
398 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
399
400 qeth_set_allowed_threads(card, 0, 1);
401 if (card->read.state == CH_STATE_UP &&
402 card->write.state == CH_STATE_UP &&
403 (card->state == CARD_STATE_UP)) {
404 if (recovery_mode &&
405 card->info.type != QETH_CARD_TYPE_OSN) {
406 qeth_l2_stop(card->dev);
407 } else {
408 rtnl_lock();
409 dev_close(card->dev);
410 rtnl_unlock();
411 }
412 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
413 card->state = CARD_STATE_SOFTSETUP;
414 }
415 if (card->state == CARD_STATE_SOFTSETUP) {
416 qeth_l2_del_all_mc(card, 0);
417 qeth_clear_ipacmd_list(card);
418 card->state = CARD_STATE_HARDSETUP;
419 }
420 if (card->state == CARD_STATE_HARDSETUP) {
421 qeth_qdio_clear_card(card, 0);
422 qeth_clear_qdio_buffers(card);
423 qeth_clear_working_pool_list(card);
424 card->state = CARD_STATE_DOWN;
425 }
426 if (card->state == CARD_STATE_DOWN) {
427 qeth_clear_cmd_buffers(&card->read);
428 qeth_clear_cmd_buffers(&card->write);
429 }
430 return rc;
431}
432
433static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
434 int budget, int *done)
435{
436 int work_done = 0;
437 struct sk_buff *skb;
438 struct qeth_hdr *hdr;
439 unsigned int len;
440
441 *done = 0;
442 WARN_ON_ONCE(!budget);
443 while (budget) {
444 skb = qeth_core_get_next_skb(card,
445 &card->qdio.in_q->bufs[card->rx.b_index],
446 &card->rx.b_element, &card->rx.e_offset, &hdr);
447 if (!skb) {
448 *done = 1;
449 break;
450 }
451 skb->dev = card->dev;
452 switch (hdr->hdr.l2.id) {
453 case QETH_HEADER_TYPE_LAYER2:
454 skb->pkt_type = PACKET_HOST;
455 skb->protocol = eth_type_trans(skb, skb->dev);
456 skb->ip_summed = CHECKSUM_NONE;
457 if (skb->protocol == htons(ETH_P_802_2))
458 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
459 len = skb->len;
460 netif_receive_skb(skb);
461 break;
462 case QETH_HEADER_TYPE_OSN:
463 if (card->info.type == QETH_CARD_TYPE_OSN) {
464 skb_push(skb, sizeof(struct qeth_hdr));
465 skb_copy_to_linear_data(skb, hdr,
466 sizeof(struct qeth_hdr));
467 len = skb->len;
468 card->osn_info.data_cb(skb);
469 break;
470 }
471
472 default:
473 dev_kfree_skb_any(skb);
474 QETH_CARD_TEXT(card, 3, "inbunkno");
475 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
476 continue;
477 }
478 work_done++;
479 budget--;
480 card->stats.rx_packets++;
481 card->stats.rx_bytes += len;
482 }
483 return work_done;
484}
485
486static int qeth_l2_poll(struct napi_struct *napi, int budget)
487{
488 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
489 int work_done = 0;
490 struct qeth_qdio_buffer *buffer;
491 int done;
492 int new_budget = budget;
493
494 if (card->options.performance_stats) {
495 card->perf_stats.inbound_cnt++;
496 card->perf_stats.inbound_start_time = qeth_get_micros();
497 }
498
499 while (1) {
500 if (!card->rx.b_count) {
501 card->rx.qdio_err = 0;
502 card->rx.b_count = qdio_get_next_buffers(
503 card->data.ccwdev, 0, &card->rx.b_index,
504 &card->rx.qdio_err);
505 if (card->rx.b_count <= 0) {
506 card->rx.b_count = 0;
507 break;
508 }
509 card->rx.b_element =
510 &card->qdio.in_q->bufs[card->rx.b_index]
511 .buffer->element[0];
512 card->rx.e_offset = 0;
513 }
514
515 while (card->rx.b_count) {
516 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
517 if (!(card->rx.qdio_err &&
518 qeth_check_qdio_errors(card, buffer->buffer,
519 card->rx.qdio_err, "qinerr")))
520 work_done += qeth_l2_process_inbound_buffer(
521 card, new_budget, &done);
522 else
523 done = 1;
524
525 if (done) {
526 if (card->options.performance_stats)
527 card->perf_stats.bufs_rec++;
528 qeth_put_buffer_pool_entry(card,
529 buffer->pool_entry);
530 qeth_queue_input_buffer(card, card->rx.b_index);
531 card->rx.b_count--;
532 if (card->rx.b_count) {
533 card->rx.b_index =
534 (card->rx.b_index + 1) %
535 QDIO_MAX_BUFFERS_PER_Q;
536 card->rx.b_element =
537 &card->qdio.in_q
538 ->bufs[card->rx.b_index]
539 .buffer->element[0];
540 card->rx.e_offset = 0;
541 }
542 }
543
544 if (work_done >= budget)
545 goto out;
546 else
547 new_budget = budget - work_done;
548 }
549 }
550
551 napi_complete(napi);
552 if (qdio_start_irq(card->data.ccwdev, 0))
553 napi_schedule(&card->napi);
554out:
555 if (card->options.performance_stats)
556 card->perf_stats.inbound_time += qeth_get_micros() -
557 card->perf_stats.inbound_start_time;
558 return work_done;
559}
560
561static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
562 enum qeth_ipa_cmds ipacmd)
563{
564 struct qeth_ipa_cmd *cmd;
565 struct qeth_cmd_buffer *iob;
566
567 QETH_CARD_TEXT(card, 2, "L2sdmac");
568 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
569 if (!iob)
570 return -ENOMEM;
571 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
572 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
573 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
574 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
575}
576
577static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
578{
579 int rc;
580
581 QETH_CARD_TEXT(card, 2, "L2Setmac");
582 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
583 IPA_CMD_SETVMAC));
584 if (rc == 0) {
585 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
586 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
587 dev_info(&card->gdev->dev,
588 "MAC address %pM successfully registered on device %s\n",
589 card->dev->dev_addr, card->dev->name);
590 } else {
591 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
592 switch (rc) {
593 case -EEXIST:
594 dev_warn(&card->gdev->dev,
595 "MAC address %pM already exists\n", mac);
596 break;
597 case -EPERM:
598 dev_warn(&card->gdev->dev,
599 "MAC address %pM is not authorized\n", mac);
600 break;
601 }
602 }
603 return rc;
604}
605
606static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
607{
608 int rc;
609
610 QETH_CARD_TEXT(card, 2, "L2Delmac");
611 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
612 return 0;
613 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
614 IPA_CMD_DELVMAC));
615 if (rc == 0)
616 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
617 return rc;
618}
619
620static int qeth_l2_request_initial_mac(struct qeth_card *card)
621{
622 int rc = 0;
623 char vendor_pre[] = {0x02, 0x00, 0x00};
624
625 QETH_DBF_TEXT(SETUP, 2, "doL2init");
626 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
627
628 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
629 rc = qeth_query_setadapterparms(card);
630 if (rc) {
631 QETH_DBF_MESSAGE(2, "could not query adapter "
632 "parameters on device %s: x%x\n",
633 CARD_BUS_ID(card), rc);
634 }
635 }
636
637 if (card->info.type == QETH_CARD_TYPE_IQD ||
638 card->info.type == QETH_CARD_TYPE_OSM ||
639 card->info.type == QETH_CARD_TYPE_OSX ||
640 card->info.guestlan) {
641 rc = qeth_setadpparms_change_macaddr(card);
642 if (rc) {
643 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
644 "device %s: x%x\n", CARD_BUS_ID(card), rc);
645 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
646 return rc;
647 }
648 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
649 } else {
650 eth_random_addr(card->dev->dev_addr);
651 memcpy(card->dev->dev_addr, vendor_pre, 3);
652 }
653 return 0;
654}
655
656static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
657{
658 struct sockaddr *addr = p;
659 struct qeth_card *card = dev->ml_priv;
660 int rc = 0;
661
662 QETH_CARD_TEXT(card, 3, "setmac");
663
664 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
665 QETH_CARD_TEXT(card, 3, "setmcINV");
666 return -EOPNOTSUPP;
667 }
668
669 if (card->info.type == QETH_CARD_TYPE_OSN ||
670 card->info.type == QETH_CARD_TYPE_OSM ||
671 card->info.type == QETH_CARD_TYPE_OSX) {
672 QETH_CARD_TEXT(card, 3, "setmcTYP");
673 return -EOPNOTSUPP;
674 }
675 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
676 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
677 QETH_CARD_TEXT(card, 3, "setmcREC");
678 return -ERESTARTSYS;
679 }
680 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
681 if (!rc || (rc == -ENOENT))
682 rc = qeth_l2_send_setmac(card, addr->sa_data);
683 return rc ? -EINVAL : 0;
684}
685
686static void qeth_l2_set_multicast_list(struct net_device *dev)
687{
688 struct qeth_card *card = dev->ml_priv;
689 struct netdev_hw_addr *ha;
690
691 if (card->info.type == QETH_CARD_TYPE_OSN)
692 return ;
693
694 QETH_CARD_TEXT(card, 3, "setmulti");
695 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
696 (card->state != CARD_STATE_UP))
697 return;
698 qeth_l2_del_all_mc(card, 1);
699 spin_lock_bh(&card->mclock);
700 netdev_for_each_mc_addr(ha, dev)
701 qeth_l2_add_mc(card, ha->addr, 0);
702
703 netdev_for_each_uc_addr(ha, dev)
704 qeth_l2_add_mc(card, ha->addr, 1);
705
706 spin_unlock_bh(&card->mclock);
707 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
708 return;
709 qeth_setadp_promisc_mode(card);
710}
711
712static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
713{
714 int rc;
715 struct qeth_hdr *hdr = NULL;
716 int elements = 0;
717 struct qeth_card *card = dev->ml_priv;
718 struct sk_buff *new_skb = skb;
719 int cast_type = qeth_l2_get_cast_type(card, skb);
720 struct qeth_qdio_out_q *queue;
721 int tx_bytes = skb->len;
722 int data_offset = -1;
723 int elements_needed = 0;
724 int hd_len = 0;
725
726 if (card->qdio.do_prio_queueing || (cast_type &&
727 card->info.is_multicast_different))
728 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
729 qeth_get_ip_version(skb), cast_type)];
730 else
731 queue = card->qdio.out_qs[card->qdio.default_out_queue];
732
733 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
734 card->stats.tx_carrier_errors++;
735 goto tx_drop;
736 }
737
738 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
739 (skb->protocol == htons(ETH_P_IPV6)))
740 goto tx_drop;
741
742 if (card->options.performance_stats) {
743 card->perf_stats.outbound_cnt++;
744 card->perf_stats.outbound_start_time = qeth_get_micros();
745 }
746 netif_stop_queue(dev);
747
748 if (card->info.type == QETH_CARD_TYPE_OSN)
749 hdr = (struct qeth_hdr *)skb->data;
750 else {
751 if (card->info.type == QETH_CARD_TYPE_IQD) {
752 new_skb = skb;
753 data_offset = ETH_HLEN;
754 hd_len = ETH_HLEN;
755 hdr = kmem_cache_alloc(qeth_core_header_cache,
756 GFP_ATOMIC);
757 if (!hdr)
758 goto tx_drop;
759 elements_needed++;
760 skb_reset_mac_header(new_skb);
761 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
762 hdr->hdr.l2.pkt_length = new_skb->len;
763 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
764 skb_mac_header(new_skb), ETH_HLEN);
765 } else {
766
767 new_skb = skb_realloc_headroom(skb,
768 sizeof(struct qeth_hdr));
769 if (!new_skb)
770 goto tx_drop;
771 hdr = (struct qeth_hdr *)skb_push(new_skb,
772 sizeof(struct qeth_hdr));
773 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
774 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
775 }
776 }
777
778 elements = qeth_get_elements_no(card, new_skb, elements_needed);
779 if (!elements) {
780 if (data_offset >= 0)
781 kmem_cache_free(qeth_core_header_cache, hdr);
782 goto tx_drop;
783 }
784
785 if (card->info.type != QETH_CARD_TYPE_IQD) {
786 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
787 sizeof(struct qeth_hdr_layer2)))
788 goto tx_drop;
789 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
790 elements);
791 } else
792 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
793 elements, data_offset, hd_len);
794 if (!rc) {
795 card->stats.tx_packets++;
796 card->stats.tx_bytes += tx_bytes;
797 if (new_skb != skb)
798 dev_kfree_skb_any(skb);
799 rc = NETDEV_TX_OK;
800 } else {
801 if (data_offset >= 0)
802 kmem_cache_free(qeth_core_header_cache, hdr);
803
804 if (rc == -EBUSY) {
805 if (new_skb != skb)
806 dev_kfree_skb_any(new_skb);
807 return NETDEV_TX_BUSY;
808 } else
809 goto tx_drop;
810 }
811
812 netif_wake_queue(dev);
813 if (card->options.performance_stats)
814 card->perf_stats.outbound_time += qeth_get_micros() -
815 card->perf_stats.outbound_start_time;
816 return rc;
817
818tx_drop:
819 card->stats.tx_dropped++;
820 card->stats.tx_errors++;
821 if ((new_skb != skb) && new_skb)
822 dev_kfree_skb_any(new_skb);
823 dev_kfree_skb_any(skb);
824 netif_wake_queue(dev);
825 return NETDEV_TX_OK;
826}
827
828static int __qeth_l2_open(struct net_device *dev)
829{
830 struct qeth_card *card = dev->ml_priv;
831 int rc = 0;
832
833 QETH_CARD_TEXT(card, 4, "qethopen");
834 if (card->state == CARD_STATE_UP)
835 return rc;
836 if (card->state != CARD_STATE_SOFTSETUP)
837 return -ENODEV;
838
839 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
840 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
841 QETH_CARD_TEXT(card, 4, "nomacadr");
842 return -EPERM;
843 }
844 card->data.state = CH_STATE_UP;
845 card->state = CARD_STATE_UP;
846 netif_start_queue(dev);
847
848 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
849 napi_enable(&card->napi);
850 napi_schedule(&card->napi);
851 } else
852 rc = -EIO;
853 return rc;
854}
855
856static int qeth_l2_open(struct net_device *dev)
857{
858 struct qeth_card *card = dev->ml_priv;
859
860 QETH_CARD_TEXT(card, 5, "qethope_");
861 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
862 QETH_CARD_TEXT(card, 3, "openREC");
863 return -ERESTARTSYS;
864 }
865 return __qeth_l2_open(dev);
866}
867
868static int qeth_l2_stop(struct net_device *dev)
869{
870 struct qeth_card *card = dev->ml_priv;
871
872 QETH_CARD_TEXT(card, 4, "qethstop");
873 netif_tx_disable(dev);
874 if (card->state == CARD_STATE_UP) {
875 card->state = CARD_STATE_SOFTSETUP;
876 napi_disable(&card->napi);
877 }
878 return 0;
879}
880
881static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
882{
883 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
884
885 qeth_l2_create_device_attributes(&gdev->dev);
886 INIT_LIST_HEAD(&card->vid_list);
887 INIT_LIST_HEAD(&card->mc_list);
888 card->options.layer2 = 1;
889 card->info.hwtrap = 0;
890 return 0;
891}
892
893static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
894{
895 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
896
897 qeth_l2_remove_device_attributes(&cgdev->dev);
898 qeth_set_allowed_threads(card, 0, 1);
899 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
900
901 if (cgdev->state == CCWGROUP_ONLINE)
902 qeth_l2_set_offline(cgdev);
903
904 if (card->dev) {
905 unregister_netdev(card->dev);
906 card->dev = NULL;
907 }
908 return;
909}
910
911static const struct ethtool_ops qeth_l2_ethtool_ops = {
912 .get_link = ethtool_op_get_link,
913 .get_strings = qeth_core_get_strings,
914 .get_ethtool_stats = qeth_core_get_ethtool_stats,
915 .get_sset_count = qeth_core_get_sset_count,
916 .get_drvinfo = qeth_core_get_drvinfo,
917 .get_settings = qeth_core_ethtool_get_settings,
918};
919
920static const struct ethtool_ops qeth_l2_osn_ops = {
921 .get_strings = qeth_core_get_strings,
922 .get_ethtool_stats = qeth_core_get_ethtool_stats,
923 .get_sset_count = qeth_core_get_sset_count,
924 .get_drvinfo = qeth_core_get_drvinfo,
925};
926
927static const struct net_device_ops qeth_l2_netdev_ops = {
928 .ndo_open = qeth_l2_open,
929 .ndo_stop = qeth_l2_stop,
930 .ndo_get_stats = qeth_get_stats,
931 .ndo_start_xmit = qeth_l2_hard_start_xmit,
932 .ndo_validate_addr = eth_validate_addr,
933 .ndo_set_rx_mode = qeth_l2_set_multicast_list,
934 .ndo_do_ioctl = qeth_l2_do_ioctl,
935 .ndo_set_mac_address = qeth_l2_set_mac_address,
936 .ndo_change_mtu = qeth_change_mtu,
937 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
938 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
939 .ndo_tx_timeout = qeth_tx_timeout,
940};
941
942static int qeth_l2_setup_netdev(struct qeth_card *card)
943{
944 switch (card->info.type) {
945 case QETH_CARD_TYPE_IQD:
946 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
947 ether_setup);
948 break;
949 case QETH_CARD_TYPE_OSN:
950 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
951 ether_setup);
952 card->dev->flags |= IFF_NOARP;
953 break;
954 default:
955 card->dev = alloc_etherdev(0);
956 }
957
958 if (!card->dev)
959 return -ENODEV;
960
961 card->dev->ml_priv = card;
962 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
963 card->dev->mtu = card->info.initial_mtu;
964 card->dev->netdev_ops = &qeth_l2_netdev_ops;
965 card->dev->ethtool_ops =
966 (card->info.type != QETH_CARD_TYPE_OSN) ?
967 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
968 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
969 card->info.broadcast_capable = 1;
970 qeth_l2_request_initial_mac(card);
971 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
972 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
973 return register_netdev(card->dev);
974}
975
976static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
977{
978 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
979 int rc = 0;
980 enum qeth_card_states recover_flag;
981
982 mutex_lock(&card->discipline_mutex);
983 mutex_lock(&card->conf_mutex);
984 QETH_DBF_TEXT(SETUP, 2, "setonlin");
985 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
986
987 recover_flag = card->state;
988 rc = qeth_core_hardsetup_card(card);
989 if (rc) {
990 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
991 rc = -ENODEV;
992 goto out_remove;
993 }
994 qeth_bridgeport_query_support(card);
995 if (card->options.sbp.supported_funcs)
996 dev_info(&card->gdev->dev,
997 "The device represents a HiperSockets Bridge Capable Port\n");
998 qeth_trace_features(card);
999
1000 if (!card->dev && qeth_l2_setup_netdev(card)) {
1001 rc = -ENODEV;
1002 goto out_remove;
1003 }
1004
1005 if (card->info.type != QETH_CARD_TYPE_OSN)
1006 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1007
1008 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1009 if (card->info.hwtrap &&
1010 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1011 card->info.hwtrap = 0;
1012 } else
1013 card->info.hwtrap = 0;
1014
1015 qeth_l2_setup_bridgeport_attrs(card);
1016
1017 card->state = CARD_STATE_HARDSETUP;
1018 memset(&card->rx, 0, sizeof(struct qeth_rx));
1019 qeth_print_status_message(card);
1020
1021
1022 QETH_DBF_TEXT(SETUP, 2, "softsetp");
1023
1024 rc = qeth_send_startlan(card);
1025 if (rc) {
1026 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1027 if (rc == 0xe080) {
1028 dev_warn(&card->gdev->dev,
1029 "The LAN is offline\n");
1030 card->lan_online = 0;
1031 goto contin;
1032 }
1033 rc = -ENODEV;
1034 goto out_remove;
1035 } else
1036 card->lan_online = 1;
1037
1038contin:
1039 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
1040 (card->info.type == QETH_CARD_TYPE_OSX)) {
1041
1042 rc = qeth_set_access_ctrl_online(card, 0);
1043 if (rc) {
1044 rc = -ENODEV;
1045 goto out_remove;
1046 }
1047 }
1048
1049 if (card->info.type != QETH_CARD_TYPE_OSN &&
1050 card->info.type != QETH_CARD_TYPE_OSM)
1051 qeth_l2_process_vlans(card);
1052
1053 netif_tx_disable(card->dev);
1054
1055 rc = qeth_init_qdio_queues(card);
1056 if (rc) {
1057 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
1058 rc = -ENODEV;
1059 goto out_remove;
1060 }
1061 card->state = CARD_STATE_SOFTSETUP;
1062 if (card->lan_online)
1063 netif_carrier_on(card->dev);
1064 else
1065 netif_carrier_off(card->dev);
1066
1067 qeth_set_allowed_threads(card, 0xffffffff, 0);
1068 if (recover_flag == CARD_STATE_RECOVER) {
1069 if (recovery_mode &&
1070 card->info.type != QETH_CARD_TYPE_OSN) {
1071 __qeth_l2_open(card->dev);
1072 } else {
1073 rtnl_lock();
1074 dev_open(card->dev);
1075 rtnl_unlock();
1076 }
1077
1078 qeth_l2_set_multicast_list(card->dev);
1079 }
1080
1081 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
1082 mutex_unlock(&card->conf_mutex);
1083 mutex_unlock(&card->discipline_mutex);
1084 return 0;
1085
1086out_remove:
1087 qeth_l2_stop_card(card, 0);
1088 ccw_device_set_offline(CARD_DDEV(card));
1089 ccw_device_set_offline(CARD_WDEV(card));
1090 ccw_device_set_offline(CARD_RDEV(card));
1091 qdio_free(CARD_DDEV(card));
1092 if (recover_flag == CARD_STATE_RECOVER)
1093 card->state = CARD_STATE_RECOVER;
1094 else
1095 card->state = CARD_STATE_DOWN;
1096 mutex_unlock(&card->conf_mutex);
1097 mutex_unlock(&card->discipline_mutex);
1098 return rc;
1099}
1100
1101static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1102{
1103 return __qeth_l2_set_online(gdev, 0);
1104}
1105
1106static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1107 int recovery_mode)
1108{
1109 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1110 int rc = 0, rc2 = 0, rc3 = 0;
1111 enum qeth_card_states recover_flag;
1112
1113 mutex_lock(&card->discipline_mutex);
1114 mutex_lock(&card->conf_mutex);
1115 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1116 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
1117
1118 if (card->dev && netif_carrier_ok(card->dev))
1119 netif_carrier_off(card->dev);
1120 recover_flag = card->state;
1121 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1122 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1123 card->info.hwtrap = 1;
1124 }
1125 qeth_l2_stop_card(card, recovery_mode);
1126 rc = ccw_device_set_offline(CARD_DDEV(card));
1127 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1128 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1129 if (!rc)
1130 rc = (rc2) ? rc2 : rc3;
1131 if (rc)
1132 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1133 qdio_free(CARD_DDEV(card));
1134 if (recover_flag == CARD_STATE_UP)
1135 card->state = CARD_STATE_RECOVER;
1136
1137 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
1138 mutex_unlock(&card->conf_mutex);
1139 mutex_unlock(&card->discipline_mutex);
1140 return 0;
1141}
1142
1143static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1144{
1145 return __qeth_l2_set_offline(cgdev, 0);
1146}
1147
1148static int qeth_l2_recover(void *ptr)
1149{
1150 struct qeth_card *card;
1151 int rc = 0;
1152
1153 card = (struct qeth_card *) ptr;
1154 QETH_CARD_TEXT(card, 2, "recover1");
1155 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1156 return 0;
1157 QETH_CARD_TEXT(card, 2, "recover2");
1158 dev_warn(&card->gdev->dev,
1159 "A recovery process has been started for the device\n");
1160 qeth_set_recovery_task(card);
1161 __qeth_l2_set_offline(card->gdev, 1);
1162 rc = __qeth_l2_set_online(card->gdev, 1);
1163 if (!rc)
1164 dev_info(&card->gdev->dev,
1165 "Device successfully recovered!\n");
1166 else {
1167 qeth_close_dev(card);
1168 dev_warn(&card->gdev->dev, "The qeth device driver "
1169 "failed to recover an error on the device\n");
1170 }
1171 qeth_clear_recovery_task(card);
1172 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1173 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1174 return 0;
1175}
1176
1177static int __init qeth_l2_init(void)
1178{
1179 pr_info("register layer 2 discipline\n");
1180 return 0;
1181}
1182
1183static void __exit qeth_l2_exit(void)
1184{
1185 pr_info("unregister layer 2 discipline\n");
1186}
1187
1188static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1189{
1190 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1191 qeth_set_allowed_threads(card, 0, 1);
1192 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1193 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1194 qeth_qdio_clear_card(card, 0);
1195 qeth_clear_qdio_buffers(card);
1196 qdio_free(CARD_DDEV(card));
1197}
1198
1199static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1200{
1201 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1202
1203 if (card->dev)
1204 netif_device_detach(card->dev);
1205 qeth_set_allowed_threads(card, 0, 1);
1206 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1207 if (gdev->state == CCWGROUP_OFFLINE)
1208 return 0;
1209 if (card->state == CARD_STATE_UP) {
1210 if (card->info.hwtrap)
1211 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1212 __qeth_l2_set_offline(card->gdev, 1);
1213 } else
1214 __qeth_l2_set_offline(card->gdev, 0);
1215 return 0;
1216}
1217
1218static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1219{
1220 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1221 int rc = 0;
1222
1223 if (gdev->state == CCWGROUP_OFFLINE)
1224 goto out;
1225
1226 if (card->state == CARD_STATE_RECOVER) {
1227 rc = __qeth_l2_set_online(card->gdev, 1);
1228 if (rc) {
1229 rtnl_lock();
1230 dev_close(card->dev);
1231 rtnl_unlock();
1232 }
1233 } else
1234 rc = __qeth_l2_set_online(card->gdev, 0);
1235out:
1236 qeth_set_allowed_threads(card, 0xffffffff, 0);
1237 if (card->dev)
1238 netif_device_attach(card->dev);
1239 if (rc)
1240 dev_warn(&card->gdev->dev, "The qeth device driver "
1241 "failed to recover an error on the device\n");
1242 return rc;
1243}
1244
1245
1246static int qeth_l2_control_event(struct qeth_card *card,
1247 struct qeth_ipa_cmd *cmd)
1248{
1249 switch (cmd->hdr.command) {
1250 case IPA_CMD_SETBRIDGEPORT:
1251 if (cmd->data.sbp.hdr.command_code ==
1252 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1253 qeth_bridge_state_change(card, cmd);
1254 return 0;
1255 } else
1256 return 1;
1257 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1258 qeth_bridge_host_event(card, cmd);
1259 return 0;
1260 default:
1261 return 1;
1262 }
1263}
1264
1265struct qeth_discipline qeth_l2_discipline = {
1266 .start_poll = qeth_qdio_start_poll,
1267 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1268 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1269 .recover = qeth_l2_recover,
1270 .setup = qeth_l2_probe_device,
1271 .remove = qeth_l2_remove_device,
1272 .set_online = qeth_l2_set_online,
1273 .set_offline = qeth_l2_set_offline,
1274 .shutdown = qeth_l2_shutdown,
1275 .freeze = qeth_l2_pm_suspend,
1276 .thaw = qeth_l2_pm_resume,
1277 .restore = qeth_l2_pm_resume,
1278 .control_event_handler = qeth_l2_control_event,
1279};
1280EXPORT_SYMBOL_GPL(qeth_l2_discipline);
1281
1282static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1283 struct qeth_cmd_buffer *iob)
1284{
1285 unsigned long flags;
1286 int rc = 0;
1287
1288 QETH_CARD_TEXT(card, 5, "osndctrd");
1289
1290 wait_event(card->wait_q,
1291 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1292 qeth_prepare_control_data(card, len, iob);
1293 QETH_CARD_TEXT(card, 6, "osnoirqp");
1294 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1295 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1296 (addr_t) iob, 0, 0);
1297 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1298 if (rc) {
1299 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
1300 "ccw_device_start rc = %i\n", rc);
1301 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1302 qeth_release_buffer(iob->channel, iob);
1303 atomic_set(&card->write.irq_pending, 0);
1304 wake_up(&card->wait_q);
1305 }
1306 return rc;
1307}
1308
1309static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1310 struct qeth_cmd_buffer *iob, int data_len)
1311{
1312 u16 s1, s2;
1313
1314 QETH_CARD_TEXT(card, 4, "osndipa");
1315
1316 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1317 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1318 s2 = (u16)data_len;
1319 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1320 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1321 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1322 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1323 return qeth_osn_send_control_data(card, s1, iob);
1324}
1325
1326int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1327{
1328 struct qeth_cmd_buffer *iob;
1329 struct qeth_card *card;
1330 int rc;
1331
1332 if (!dev)
1333 return -ENODEV;
1334 card = dev->ml_priv;
1335 if (!card)
1336 return -ENODEV;
1337 QETH_CARD_TEXT(card, 2, "osnsdmc");
1338 if (!qeth_card_hw_is_reachable(card))
1339 return -ENODEV;
1340 iob = qeth_wait_for_buffer(&card->write);
1341 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1342 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1343 return rc;
1344}
1345EXPORT_SYMBOL(qeth_osn_assist);
1346
1347int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1348 int (*assist_cb)(struct net_device *, void *),
1349 int (*data_cb)(struct sk_buff *))
1350{
1351 struct qeth_card *card;
1352
1353 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1354 if (*dev == NULL)
1355 return -ENODEV;
1356 card = (*dev)->ml_priv;
1357 if (!card)
1358 return -ENODEV;
1359 QETH_CARD_TEXT(card, 2, "osnreg");
1360 if ((assist_cb == NULL) || (data_cb == NULL))
1361 return -EINVAL;
1362 card->osn_info.assist_cb = assist_cb;
1363 card->osn_info.data_cb = data_cb;
1364 return 0;
1365}
1366EXPORT_SYMBOL(qeth_osn_register);
1367
1368void qeth_osn_deregister(struct net_device *dev)
1369{
1370 struct qeth_card *card;
1371
1372 if (!dev)
1373 return;
1374 card = dev->ml_priv;
1375 if (!card)
1376 return;
1377 QETH_CARD_TEXT(card, 2, "osndereg");
1378 card->osn_info.assist_cb = NULL;
1379 card->osn_info.data_cb = NULL;
1380 return;
1381}
1382EXPORT_SYMBOL(qeth_osn_deregister);
1383
1384
1385
1386enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403static void qeth_bridge_emit_host_event(struct qeth_card *card,
1404 enum qeth_an_event_type evtype,
1405 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1406{
1407 char str[7][32];
1408 char *env[8];
1409 int i = 0;
1410
1411 switch (evtype) {
1412 case anev_reg_unreg:
1413 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1414 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1415 ? "deregister" : "register");
1416 env[i] = str[i]; i++;
1417 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1418 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1419 addr_lnid->lnid);
1420 env[i] = str[i]; i++;
1421 }
1422 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1423 snprintf(str[i], sizeof(str[i]), "MAC=%pM6",
1424 &addr_lnid->mac);
1425 env[i] = str[i]; i++;
1426 }
1427 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1428 token->cssid, token->ssid, token->devnum);
1429 env[i] = str[i]; i++;
1430 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1431 env[i] = str[i]; i++;
1432 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1433 token->chpid);
1434 env[i] = str[i]; i++;
1435 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1436 env[i] = str[i]; i++;
1437 break;
1438 case anev_abort:
1439 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1440 env[i] = str[i]; i++;
1441 break;
1442 case anev_reset:
1443 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1444 env[i] = str[i]; i++;
1445 break;
1446 }
1447 env[i] = NULL;
1448 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1449}
1450
1451struct qeth_bridge_state_data {
1452 struct work_struct worker;
1453 struct qeth_card *card;
1454 struct qeth_sbp_state_change qports;
1455};
1456
1457static void qeth_bridge_state_change_worker(struct work_struct *work)
1458{
1459 struct qeth_bridge_state_data *data =
1460 container_of(work, struct qeth_bridge_state_data, worker);
1461
1462 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1463 char env_locrem[32];
1464 char env_role[32];
1465 char env_state[32];
1466 char *env[] = {
1467 env_locrem,
1468 env_role,
1469 env_state,
1470 NULL
1471 };
1472
1473
1474
1475 mutex_lock(&data->card->conf_mutex);
1476 data->card->options.sbp.role = entry->role;
1477 mutex_unlock(&data->card->conf_mutex);
1478
1479 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1480 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1481 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1482 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1483 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1484 "<INVALID>");
1485 snprintf(env_state, sizeof(env_state), "STATE=%s",
1486 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1487 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1488 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1489 "<INVALID>");
1490 kobject_uevent_env(&data->card->gdev->dev.kobj,
1491 KOBJ_CHANGE, env);
1492 kfree(data);
1493}
1494
1495static void qeth_bridge_state_change(struct qeth_card *card,
1496 struct qeth_ipa_cmd *cmd)
1497{
1498 struct qeth_sbp_state_change *qports =
1499 &cmd->data.sbp.data.state_change;
1500 struct qeth_bridge_state_data *data;
1501 int extrasize;
1502
1503 QETH_CARD_TEXT(card, 2, "brstchng");
1504 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1505 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
1506 return;
1507 }
1508 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1509 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1510 GFP_ATOMIC);
1511 if (!data) {
1512 QETH_CARD_TEXT(card, 2, "BPSalloc");
1513 return;
1514 }
1515 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1516 data->card = card;
1517 memcpy(&data->qports, qports,
1518 sizeof(struct qeth_sbp_state_change) + extrasize);
1519 queue_work(qeth_wq, &data->worker);
1520}
1521
1522struct qeth_bridge_host_data {
1523 struct work_struct worker;
1524 struct qeth_card *card;
1525 struct qeth_ipacmd_addr_change hostevs;
1526};
1527
1528static void qeth_bridge_host_event_worker(struct work_struct *work)
1529{
1530 struct qeth_bridge_host_data *data =
1531 container_of(work, struct qeth_bridge_host_data, worker);
1532 int i;
1533
1534 if (data->hostevs.lost_event_mask) {
1535 dev_info(&data->card->gdev->dev,
1536"Address notification from the HiperSockets Bridge Port stopped %s (%s)\n",
1537 data->card->dev->name,
1538 (data->hostevs.lost_event_mask == 0x01)
1539 ? "Overflow"
1540 : (data->hostevs.lost_event_mask == 0x02)
1541 ? "Bridge port state change"
1542 : "Unknown reason");
1543 mutex_lock(&data->card->conf_mutex);
1544 data->card->options.sbp.hostnotification = 0;
1545 mutex_unlock(&data->card->conf_mutex);
1546 qeth_bridge_emit_host_event(data->card, anev_abort,
1547 0, NULL, NULL);
1548 } else
1549 for (i = 0; i < data->hostevs.num_entries; i++) {
1550 struct qeth_ipacmd_addr_change_entry *entry =
1551 &data->hostevs.entry[i];
1552 qeth_bridge_emit_host_event(data->card,
1553 anev_reg_unreg,
1554 entry->change_code,
1555 &entry->token, &entry->addr_lnid);
1556 }
1557 kfree(data);
1558}
1559
1560static void qeth_bridge_host_event(struct qeth_card *card,
1561 struct qeth_ipa_cmd *cmd)
1562{
1563 struct qeth_ipacmd_addr_change *hostevs =
1564 &cmd->data.addrchange;
1565 struct qeth_bridge_host_data *data;
1566 int extrasize;
1567
1568 QETH_CARD_TEXT(card, 2, "brhostev");
1569 if (cmd->hdr.return_code != 0x0000) {
1570 if (cmd->hdr.return_code == 0x0010) {
1571 if (hostevs->lost_event_mask == 0x00)
1572 hostevs->lost_event_mask = 0xff;
1573 } else {
1574 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1575 cmd->hdr.return_code);
1576 return;
1577 }
1578 }
1579 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1580 hostevs->num_entries;
1581 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1582 GFP_ATOMIC);
1583 if (!data) {
1584 QETH_CARD_TEXT(card, 2, "BPHalloc");
1585 return;
1586 }
1587 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1588 data->card = card;
1589 memcpy(&data->hostevs, hostevs,
1590 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1591 queue_work(qeth_wq, &data->worker);
1592}
1593
1594
1595
1596struct _qeth_sbp_cbctl {
1597 u16 ipa_rc;
1598 u16 cmd_rc;
1599 union {
1600 u32 supported;
1601 struct {
1602 enum qeth_sbp_roles *role;
1603 enum qeth_sbp_states *state;
1604 } qports;
1605 } data;
1606};
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616static int qeth_bridgeport_makerc(struct qeth_card *card,
1617 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1618{
1619 int rc;
1620
1621 switch (cbctl->ipa_rc) {
1622 case IPA_RC_SUCCESS:
1623 switch (cbctl->cmd_rc) {
1624 case 0x0000:
1625 rc = 0;
1626 break;
1627 case 0x0004:
1628 rc = -ENOSYS;
1629 break;
1630 case 0x000C:
1631 rc = -ENODEV;
1632 dev_err(&card->gdev->dev,
1633 "The HiperSockets device is not configured as a Bridge Port\n");
1634 break;
1635 case 0x0014:
1636 switch (setcmd) {
1637 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1638 rc = -EEXIST;
1639 dev_err(&card->gdev->dev,
1640 "The HiperSockets LAN already has a primary Bridge Port\n");
1641 break;
1642 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1643 rc = -EBUSY;
1644 dev_err(&card->gdev->dev,
1645 "The HiperSockets device is already a primary Bridge Port\n");
1646 break;
1647 default:
1648 rc = -EIO;
1649 }
1650 break;
1651 case 0x0018:
1652 rc = -EBUSY;
1653 dev_err(&card->gdev->dev,
1654 "The HiperSockets device is already a secondary Bridge Port\n");
1655 break;
1656 case 0x001C:
1657 rc = -EEXIST;
1658 dev_err(&card->gdev->dev,
1659 "The HiperSockets LAN cannot have more secondary Bridge Ports\n");
1660 break;
1661 case 0x0024:
1662 rc = -EBUSY;
1663 dev_err(&card->gdev->dev,
1664 "The HiperSockets device is already a primary Bridge Port\n");
1665 break;
1666 case 0x0020:
1667 rc = -EACCES;
1668 dev_err(&card->gdev->dev,
1669 "The HiperSockets device is not authorized to be a Bridge Port\n");
1670 break;
1671 default:
1672 rc = -EIO;
1673 }
1674 break;
1675 case IPA_RC_NOTSUPP:
1676 rc = -ENOSYS;
1677 break;
1678 case IPA_RC_UNSUPPORTED_COMMAND:
1679 rc = -ENOSYS;
1680 break;
1681 default:
1682 rc = -EIO;
1683 }
1684 if (rc) {
1685 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1686 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1687 }
1688 return rc;
1689}
1690
1691static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1692 struct qeth_reply *reply, unsigned long data)
1693{
1694 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1695 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1696 QETH_CARD_TEXT(card, 2, "brqsupcb");
1697 cbctl->ipa_rc = cmd->hdr.return_code;
1698 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1699 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1700 cbctl->data.supported =
1701 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1702 } else {
1703 cbctl->data.supported = 0;
1704 }
1705 return 0;
1706}
1707
1708
1709
1710
1711
1712
1713
1714
1715static void qeth_bridgeport_query_support(struct qeth_card *card)
1716{
1717 struct qeth_cmd_buffer *iob;
1718 struct qeth_ipa_cmd *cmd;
1719 struct _qeth_sbp_cbctl cbctl;
1720
1721 QETH_CARD_TEXT(card, 2, "brqsuppo");
1722 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1723 if (!iob)
1724 return;
1725 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1726 cmd->data.sbp.hdr.cmdlength =
1727 sizeof(struct qeth_ipacmd_sbp_hdr) +
1728 sizeof(struct qeth_sbp_query_cmds_supp);
1729 cmd->data.sbp.hdr.command_code =
1730 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1731 cmd->data.sbp.hdr.used_total = 1;
1732 cmd->data.sbp.hdr.seq_no = 1;
1733 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1734 (void *)&cbctl) ||
1735 qeth_bridgeport_makerc(card, &cbctl,
1736 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1737
1738 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1739 return;
1740 }
1741 card->options.sbp.supported_funcs = cbctl.data.supported;
1742}
1743
1744static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1745 struct qeth_reply *reply, unsigned long data)
1746{
1747 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1748 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1749 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1750
1751 QETH_CARD_TEXT(card, 2, "brqprtcb");
1752 cbctl->ipa_rc = cmd->hdr.return_code;
1753 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1754 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1755 return 0;
1756 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1757 cbctl->cmd_rc = 0xffff;
1758 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1759 return 0;
1760 }
1761
1762 if (qports->num_entries > 0) {
1763 if (cbctl->data.qports.role)
1764 *cbctl->data.qports.role = qports->entry[0].role;
1765 if (cbctl->data.qports.state)
1766 *cbctl->data.qports.state = qports->entry[0].state;
1767 }
1768 return 0;
1769}
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781int qeth_bridgeport_query_ports(struct qeth_card *card,
1782 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1783{
1784 int rc = 0;
1785 struct qeth_cmd_buffer *iob;
1786 struct qeth_ipa_cmd *cmd;
1787 struct _qeth_sbp_cbctl cbctl = {
1788 .data = {
1789 .qports = {
1790 .role = role,
1791 .state = state,
1792 },
1793 },
1794 };
1795
1796 QETH_CARD_TEXT(card, 2, "brqports");
1797 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1798 return -EOPNOTSUPP;
1799 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1800 if (!iob)
1801 return -ENOMEM;
1802 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1803 cmd->data.sbp.hdr.cmdlength =
1804 sizeof(struct qeth_ipacmd_sbp_hdr);
1805 cmd->data.sbp.hdr.command_code =
1806 IPA_SBP_QUERY_BRIDGE_PORTS;
1807 cmd->data.sbp.hdr.used_total = 1;
1808 cmd->data.sbp.hdr.seq_no = 1;
1809 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1810 (void *)&cbctl);
1811 if (rc)
1812 return rc;
1813 rc = qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
1814 return rc;
1815}
1816EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
1817
1818static int qeth_bridgeport_set_cb(struct qeth_card *card,
1819 struct qeth_reply *reply, unsigned long data)
1820{
1821 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1822 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1823 QETH_CARD_TEXT(card, 2, "brsetrcb");
1824 cbctl->ipa_rc = cmd->hdr.return_code;
1825 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1826 return 0;
1827}
1828
1829
1830
1831
1832
1833
1834
1835
1836int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1837{
1838 int rc = 0;
1839 int cmdlength;
1840 struct qeth_cmd_buffer *iob;
1841 struct qeth_ipa_cmd *cmd;
1842 struct _qeth_sbp_cbctl cbctl;
1843 enum qeth_ipa_sbp_cmd setcmd;
1844
1845 QETH_CARD_TEXT(card, 2, "brsetrol");
1846 switch (role) {
1847 case QETH_SBP_ROLE_NONE:
1848 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1849 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1850 sizeof(struct qeth_sbp_reset_role);
1851 break;
1852 case QETH_SBP_ROLE_PRIMARY:
1853 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1854 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1855 sizeof(struct qeth_sbp_set_primary);
1856 break;
1857 case QETH_SBP_ROLE_SECONDARY:
1858 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1859 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1860 sizeof(struct qeth_sbp_set_secondary);
1861 break;
1862 default:
1863 return -EINVAL;
1864 }
1865 if (!(card->options.sbp.supported_funcs & setcmd))
1866 return -EOPNOTSUPP;
1867 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1868 if (!iob)
1869 return -ENOMEM;
1870 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1871 cmd->data.sbp.hdr.cmdlength = cmdlength;
1872 cmd->data.sbp.hdr.command_code = setcmd;
1873 cmd->data.sbp.hdr.used_total = 1;
1874 cmd->data.sbp.hdr.seq_no = 1;
1875 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1876 (void *)&cbctl);
1877 if (rc)
1878 return rc;
1879 rc = qeth_bridgeport_makerc(card, &cbctl, setcmd);
1880 return rc;
1881}
1882
1883
1884
1885
1886
1887
1888
1889static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1890{
1891 int rc;
1892
1893 if (pnso_rc == 0)
1894 switch (response) {
1895 case 0x0001:
1896 rc = 0;
1897 break;
1898 case 0x0004:
1899 case 0x0100:
1900 case 0x0106:
1901 rc = -ENOSYS;
1902 dev_err(&card->gdev->dev,
1903 "Setting address notification failed\n");
1904 break;
1905 case 0x0107:
1906 rc = -EAGAIN;
1907 break;
1908 default:
1909 rc = -EIO;
1910 }
1911 else
1912 rc = -EIO;
1913
1914 if (rc) {
1915 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1916 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1917 }
1918 return rc;
1919}
1920
1921static void qeth_bridgeport_an_set_cb(void *priv,
1922 enum qdio_brinfo_entry_type type, void *entry)
1923{
1924 struct qeth_card *card = (struct qeth_card *)priv;
1925 struct qdio_brinfo_entry_l2 *l2entry;
1926 u8 code;
1927
1928 if (type != l2_addr_lnid) {
1929 WARN_ON_ONCE(1);
1930 return;
1931 }
1932
1933 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1934 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1935 if (l2entry->addr_lnid.lnid)
1936 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1937 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1938 (struct net_if_token *)&l2entry->nit,
1939 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1940}
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1953{
1954 int rc;
1955 u16 response;
1956 struct ccw_device *ddev;
1957 struct subchannel_id schid;
1958
1959 if (!card)
1960 return -EINVAL;
1961 if (!card->options.sbp.supported_funcs)
1962 return -EOPNOTSUPP;
1963 ddev = CARD_DDEV(card);
1964 ccw_device_get_schid(ddev, &schid);
1965
1966 if (enable) {
1967 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1968 rc = qdio_pnso_brinfo(schid, 1, &response,
1969 qeth_bridgeport_an_set_cb, card);
1970 } else
1971 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1972 return qeth_anset_makerc(card, rc, response);
1973}
1974EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
1975
1976module_init(qeth_l2_init);
1977module_exit(qeth_l2_exit);
1978MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1979MODULE_DESCRIPTION("qeth layer 2 discipline");
1980MODULE_LICENSE("GPL");
1981
