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Merge branch 'bridge-netlink-port-attrs'
[mirror_ubuntu-bionic-kernel.git] / drivers / s390 / net / qeth_l2_main.c
CommitLineData
4a71df50 1/*
bbcfcdc8 2 * Copyright IBM Corp. 2007, 2009
4a71df50
FB		 3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
7 */
8
74eacdb9
FB		 9#define KMSG_COMPONENT "qeth"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
4a71df50
FB		 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>
5a0e3ad6 17#include <linux/slab.h>
4a71df50
FB		 18#include <linux/etherdevice.h>
19#include <linux/mii.h>
20#include <linux/ip.h>
ccffad25 21#include <linux/list.h>
4a71df50 22
4a71df50 23#include "qeth_core.h"
b4d72c08 24#include "qeth_l2.h"
4a71df50 25
4a71df50
FB		 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 *,
efbbc1d5 30 enum qeth_ipa_cmds);
4a71df50
FB		 31static void qeth_l2_set_multicast_list(struct net_device *);
32static int qeth_l2_recover(void *);
c044dc21
EC		 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);
4a71df50
FB		 38
39static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
40{
509e2562 41 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 42 struct mii_ioctl_data *mii_data;
43 int rc = 0;
44
45 if (!card)
46 return -ENODEV;
47
c3521254 48 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 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:
5113fec0
UB		 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) &&
4a71df50
FB		 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;
c3ab96f3
FB		 78 case SIOC_QETH_QUERY_OAT:
79 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
80 break;
4a71df50
FB		 81 default:
82 rc = -EOPNOTSUPP;
83 }
84 if (rc)
847a50fd 85 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 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;
f06f6f32 111 __u16 temp_dev_no;
4a71df50 112 unsigned long flags;
f06f6f32 113 struct ccw_dev_id read_devid;
4a71df50
FB		 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) {
f06f6f32
CH		 119 ccw_device_get_id(CARD_RDEV(card), &read_devid);
120 if (read_devid.devno == temp_dev_no) {
4a71df50
FB		 121 ndev = card->dev;
122 break;
123 }
124 }
125 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
126 return ndev;
127}
128
efbbc1d5 129static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
4a71df50 130{
efbbc1d5 131 int rc;
4a71df50 132
efbbc1d5 133 if (retcode)
1aec42bc 134 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
efbbc1d5
EC		 135 switch (retcode) {
136 case IPA_RC_SUCCESS:
137 rc = 0;
138 break;
139 case IPA_RC_L2_UNSUPPORTED_CMD:
ffb95251 140 rc = -EOPNOTSUPP;
efbbc1d5
EC		 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;
1aec42bc
TR		 156 case -ENOMEM:
157 rc = -ENOMEM;
158 break;
efbbc1d5
EC		 159 default:
160 rc = -EIO;
161 break;
4a71df50 162 }
efbbc1d5 163 return rc;
4a71df50
FB		 164}
165
166static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
167{
efbbc1d5 168 int rc;
4a71df50 169
efbbc1d5
EC		 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;
4a71df50
FB		 180}
181
182static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
183{
efbbc1d5
EC		 184 int rc;
185
847a50fd 186 QETH_CARD_TEXT(card, 2, "L2Dgmac");
efbbc1d5
EC		 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;
4a71df50
FB		 194}
195
7db2266a 196static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac)
4a71df50
FB		 197{
198 struct qeth_mc_mac *mc;
7db2266a 199 int rc;
4a71df50
FB		 200
201 mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC);
202
14cc21b6 203 if (!mc)
4a71df50 204 return;
4a71df50
FB		 205
206 memcpy(mc->mc_addr, mac, OSA_ADDR_LEN);
207 mc->mc_addrlen = OSA_ADDR_LEN;
7db2266a
FB		 208 mc->is_vmac = vmac;
209
210 if (vmac) {
efbbc1d5
EC		 211 rc = qeth_setdel_makerc(card,
212 qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC));
7db2266a 213 } else {
efbbc1d5
EC		 214 rc = qeth_setdel_makerc(card,
215 qeth_l2_send_setgroupmac(card, mac));
7db2266a 216 }
4a71df50 217
7db2266a 218 if (!rc)
4a71df50
FB		 219 list_add_tail(&mc->list, &card->mc_list);
220 else
221 kfree(mc);
222}
223
70919e23 224static void qeth_l2_del_all_mc(struct qeth_card *card, int del)
4a71df50
FB		 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) {
70919e23
UB		 230 if (del) {
231 if (mc->is_vmac)
232 qeth_l2_send_setdelmac(card, mc->mc_addr,
efbbc1d5 233 IPA_CMD_DELVMAC);
70919e23
UB		 234 else
235 qeth_l2_send_delgroupmac(card, mc->mc_addr);
236 }
4a71df50
FB		 237 list_del(&mc->list);
238 kfree(mc);
239 }
240 spin_unlock_bh(&card->mclock);
241}
242
ce73e10e
KDW		 243static inline int qeth_l2_get_cast_type(struct qeth_card *card,
244 struct sk_buff *skb)
4a71df50 245{
ce73e10e
KDW		 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;
4a71df50
FB		 253}
254
4d7def2a
TR		 255static inline void qeth_l2_hdr_csum(struct qeth_card *card,
256 struct qeth_hdr *hdr, struct sk_buff *skb)
257{
258 struct iphdr *iph = ip_hdr(skb);
259
260 /* tcph->check contains already the pseudo hdr checksum
261 * so just set the header flags
262 */
263 if (iph->protocol == IPPROTO_UDP)
264 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP;
265 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
266 QETH_HDR_EXT_CSUM_HDR_REQ;
267 iph->check = 0;
268 if (card->options.performance_stats)
269 card->perf_stats.tx_csum++;
270}
271
4a71df50 272static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
43934077 273 struct sk_buff *skb, int cast_type)
4a71df50 274{
683d718a 275 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
4a71df50
FB		 276
277 memset(hdr, 0, sizeof(struct qeth_hdr));
278 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
279
280 /* set byte byte 3 to casting flags */
281 if (cast_type == RTN_MULTICAST)
282 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
283 else if (cast_type == RTN_BROADCAST)
284 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
285 else
ce73e10e 286 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
4a71df50
FB		 287
288 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
289 /* VSWITCH relies on the VLAN
290 * information to be present in
291 * the QDIO header */
292 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
293 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
294 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
295 }
296}
297
298static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
299 struct qeth_reply *reply, unsigned long data)
300{
301 struct qeth_ipa_cmd *cmd;
302
847a50fd 303 QETH_CARD_TEXT(card, 2, "L2sdvcb");
4a71df50
FB		 304 cmd = (struct qeth_ipa_cmd *) data;
305 if (cmd->hdr.return_code) {
14cc21b6 306 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
4a71df50
FB		 307 "Continuing\n", cmd->data.setdelvlan.vlan_id,
308 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
847a50fd
CO		 309 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
310 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
4a71df50
FB		 311 }
312 return 0;
313}
314
315static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
316 enum qeth_ipa_cmds ipacmd)
317{
318 struct qeth_ipa_cmd *cmd;
319 struct qeth_cmd_buffer *iob;
320
847a50fd 321 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
4a71df50 322 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 323 if (!iob)
324 return -ENOMEM;
4a71df50
FB		 325 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
326 cmd->data.setdelvlan.vlan_id = i;
327 return qeth_send_ipa_cmd(card, iob,
328 qeth_l2_send_setdelvlan_cb, NULL);
329}
330
70919e23 331static void qeth_l2_process_vlans(struct qeth_card *card)
4a71df50
FB		 332{
333 struct qeth_vlan_vid *id;
847a50fd 334 QETH_CARD_TEXT(card, 3, "L2prcvln");
4a71df50
FB		 335 spin_lock_bh(&card->vlanlock);
336 list_for_each_entry(id, &card->vid_list, list) {
70919e23 337 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
4a71df50
FB		 338 }
339 spin_unlock_bh(&card->vlanlock);
340}
341
80d5c368
PM		 342static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
343 __be16 proto, u16 vid)
4a71df50 344{
509e2562 345 struct qeth_card *card = dev->ml_priv;
4a71df50 346 struct qeth_vlan_vid *id;
1aec42bc 347 int rc;
4a71df50 348
847a50fd 349 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
10651db7 350 if (!vid)
8e586137 351 return 0;
5113fec0 352 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 353 QETH_CARD_TEXT(card, 3, "aidOSM");
8e586137 354 return 0;
5113fec0 355 }
8e98ac48 356 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 357 QETH_CARD_TEXT(card, 3, "aidREC");
8e586137 358 return 0;
8e98ac48 359 }
4a71df50
FB		 360 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
361 if (id) {
362 id->vid = vid;
1aec42bc
TR		 363 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
364 if (rc) {
365 kfree(id);
366 return rc;
367 }
4a71df50
FB		 368 spin_lock_bh(&card->vlanlock);
369 list_add_tail(&id->list, &card->vid_list);
370 spin_unlock_bh(&card->vlanlock);
8e586137
JP		 371 } else {
372 return -ENOMEM;
4a71df50 373 }
8e586137 374 return 0;
4a71df50
FB		 375}
376
80d5c368
PM		 377static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
378 __be16 proto, u16 vid)
4a71df50
FB		 379{
380 struct qeth_vlan_vid *id, *tmpid = NULL;
509e2562 381 struct qeth_card *card = dev->ml_priv;
1aec42bc 382 int rc = 0;
4a71df50 383
847a50fd 384 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
5113fec0 385 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 386 QETH_CARD_TEXT(card, 3, "kidOSM");
8e586137 387 return 0;
5113fec0 388 }
8e98ac48 389 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 390 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 391 return 0;
8e98ac48 392 }
4a71df50
FB		 393 spin_lock_bh(&card->vlanlock);
394 list_for_each_entry(id, &card->vid_list, list) {
395 if (id->vid == vid) {
396 list_del(&id->list);
397 tmpid = id;
398 break;
399 }
400 }
401 spin_unlock_bh(&card->vlanlock);
402 if (tmpid) {
1aec42bc 403 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
4a71df50
FB		 404 kfree(tmpid);
405 }
406 qeth_l2_set_multicast_list(card->dev);
1aec42bc 407 return rc;
4a71df50
FB		 408}
409
4d7def2a
TR		 410static netdev_features_t qeth_l2_fix_features(struct net_device *dev,
411 netdev_features_t features)
412{
413 struct qeth_card *card = dev->ml_priv;
414
415 QETH_DBF_TEXT(SETUP, 2, "fixfeat");
416 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
417 features &= ~NETIF_F_IP_CSUM;
418 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
419 features &= ~NETIF_F_RXCSUM;
420 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
421 return features;
422}
423
424static int qeth_l2_set_features(struct net_device *dev,
425 netdev_features_t features)
426{
427 struct qeth_card *card = dev->ml_priv;
428 netdev_features_t changed = dev->features ^ features;
429
430 QETH_DBF_TEXT(SETUP, 2, "setfeat");
431 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
432
433 if (card->state == CARD_STATE_DOWN ||
434 card->state == CARD_STATE_RECOVER)
435 return 0;
436
437 if (!(changed & NETIF_F_RXCSUM))
438 return 0;
439 return qeth_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0);
440}
441
b2f4de8b 442static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
4a71df50 443{
d11ba0c4
PT		 444 QETH_DBF_TEXT(SETUP , 2, "stopcard");
445 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 446
447 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 448 if (card->read.state == CH_STATE_UP &&
449 card->write.state == CH_STATE_UP &&
450 (card->state == CARD_STATE_UP)) {
451 if (recovery_mode &&
452 card->info.type != QETH_CARD_TYPE_OSN) {
453 qeth_l2_stop(card->dev);
454 } else {
455 rtnl_lock();
456 dev_close(card->dev);
457 rtnl_unlock();
458 }
70919e23 459 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
4a71df50
FB		 460 card->state = CARD_STATE_SOFTSETUP;
461 }
462 if (card->state == CARD_STATE_SOFTSETUP) {
70919e23 463 qeth_l2_del_all_mc(card, 0);
4a71df50
FB		 464 qeth_clear_ipacmd_list(card);
465 card->state = CARD_STATE_HARDSETUP;
466 }
467 if (card->state == CARD_STATE_HARDSETUP) {
468 qeth_qdio_clear_card(card, 0);
469 qeth_clear_qdio_buffers(card);
470 qeth_clear_working_pool_list(card);
471 card->state = CARD_STATE_DOWN;
472 }
473 if (card->state == CARD_STATE_DOWN) {
474 qeth_clear_cmd_buffers(&card->read);
475 qeth_clear_cmd_buffers(&card->write);
476 }
4a71df50
FB		 477}
478
a1c3ed4c
FB		 479static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
480 int budget, int *done)
4a71df50 481{
a1c3ed4c 482 int work_done = 0;
4a71df50
FB		 483 struct sk_buff *skb;
484 struct qeth_hdr *hdr;
4a71df50
FB		 485 unsigned int len;
486
a1c3ed4c 487 *done = 0;
18af5c17 488 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 489 while (budget) {
490 skb = qeth_core_get_next_skb(card,
b3332930 491 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 492 &card->rx.b_element, &card->rx.e_offset, &hdr);
493 if (!skb) {
494 *done = 1;
495 break;
4a71df50 496 }
a1c3ed4c 497 skb->dev = card->dev;
4a71df50
FB		 498 switch (hdr->hdr.l2.id) {
499 case QETH_HEADER_TYPE_LAYER2:
500 skb->pkt_type = PACKET_HOST;
501 skb->protocol = eth_type_trans(skb, skb->dev);
4d7def2a
TR		 502 if ((card->dev->features & NETIF_F_RXCSUM)
503 && ((hdr->hdr.l2.flags[1] &
504 (QETH_HDR_EXT_CSUM_HDR_REQ |
505 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
506 (QETH_HDR_EXT_CSUM_HDR_REQ |
507 QETH_HDR_EXT_CSUM_TRANSP_REQ)))
508 skb->ip_summed = CHECKSUM_UNNECESSARY;
509 else
510 skb->ip_summed = CHECKSUM_NONE;
12883725
UB		 511 if (skb->protocol == htons(ETH_P_802_2))
512 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
4a71df50 513 len = skb->len;
a1c3ed4c 514 netif_receive_skb(skb);
4a71df50
FB		 515 break;
516 case QETH_HEADER_TYPE_OSN:
2d488c2f
UB		 517 if (card->info.type == QETH_CARD_TYPE_OSN) {
518 skb_push(skb, sizeof(struct qeth_hdr));
519 skb_copy_to_linear_data(skb, hdr,
4a71df50 520 sizeof(struct qeth_hdr));
2d488c2f
UB		 521 len = skb->len;
522 card->osn_info.data_cb(skb);
523 break;
524 }
525 /* else unknown */
4a71df50
FB		 526 default:
527 dev_kfree_skb_any(skb);
847a50fd 528 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 529 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 530 continue;
531 }
a1c3ed4c
FB		 532 work_done++;
533 budget--;
4a71df50
FB		 534 card->stats.rx_packets++;
535 card->stats.rx_bytes += len;
536 }
a1c3ed4c
FB		 537 return work_done;
538}
539
540static int qeth_l2_poll(struct napi_struct *napi, int budget)
541{
542 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
543 int work_done = 0;
544 struct qeth_qdio_buffer *buffer;
545 int done;
546 int new_budget = budget;
547
548 if (card->options.performance_stats) {
549 card->perf_stats.inbound_cnt++;
550 card->perf_stats.inbound_start_time = qeth_get_micros();
551 }
552
553 while (1) {
554 if (!card->rx.b_count) {
555 card->rx.qdio_err = 0;
556 card->rx.b_count = qdio_get_next_buffers(
557 card->data.ccwdev, 0, &card->rx.b_index,
558 &card->rx.qdio_err);
559 if (card->rx.b_count <= 0) {
560 card->rx.b_count = 0;
561 break;
562 }
563 card->rx.b_element =
564 &card->qdio.in_q->bufs[card->rx.b_index]
565 .buffer->element[0];
566 card->rx.e_offset = 0;
567 }
568
569 while (card->rx.b_count) {
570 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
571 if (!(card->rx.qdio_err &&
572 qeth_check_qdio_errors(card, buffer->buffer,
573 card->rx.qdio_err, "qinerr")))
574 work_done += qeth_l2_process_inbound_buffer(
575 card, new_budget, &done);
576 else
577 done = 1;
578
579 if (done) {
580 if (card->options.performance_stats)
581 card->perf_stats.bufs_rec++;
582 qeth_put_buffer_pool_entry(card,
583 buffer->pool_entry);
584 qeth_queue_input_buffer(card, card->rx.b_index);
585 card->rx.b_count--;
586 if (card->rx.b_count) {
587 card->rx.b_index =
588 (card->rx.b_index + 1) %
589 QDIO_MAX_BUFFERS_PER_Q;
590 card->rx.b_element =
591 &card->qdio.in_q
592 ->bufs[card->rx.b_index]
593 .buffer->element[0];
594 card->rx.e_offset = 0;
595 }
596 }
597
598 if (work_done >= budget)
599 goto out;
600 else
601 new_budget = budget - work_done;
602 }
603 }
604
605 napi_complete(napi);
606 if (qdio_start_irq(card->data.ccwdev, 0))
607 napi_schedule(&card->napi);
608out:
609 if (card->options.performance_stats)
610 card->perf_stats.inbound_time += qeth_get_micros() -
611 card->perf_stats.inbound_start_time;
612 return work_done;
4a71df50
FB		 613}
614
615static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
efbbc1d5 616 enum qeth_ipa_cmds ipacmd)
4a71df50
FB		 617{
618 struct qeth_ipa_cmd *cmd;
619 struct qeth_cmd_buffer *iob;
620
847a50fd 621 QETH_CARD_TEXT(card, 2, "L2sdmac");
4a71df50 622 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 623 if (!iob)
624 return -ENOMEM;
4a71df50
FB		 625 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
626 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
627 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
efbbc1d5 628 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
4a71df50
FB		 629}
630
efbbc1d5 631static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
4a71df50 632{
efbbc1d5 633 int rc;
4a71df50 634
efbbc1d5
EC		 635 QETH_CARD_TEXT(card, 2, "L2Setmac");
636 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
637 IPA_CMD_SETVMAC));
638 if (rc == 0) {
639 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
640 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
641 dev_info(&card->gdev->dev,
642 "MAC address %pM successfully registered on device %s\n",
643 card->dev->dev_addr, card->dev->name);
644 } else {
4a71df50 645 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
efbbc1d5
EC		 646 switch (rc) {
647 case -EEXIST:
0666eb06 648 dev_warn(&card->gdev->dev,
efbbc1d5 649 "MAC address %pM already exists\n", mac);
0666eb06 650 break;
efbbc1d5 651 case -EPERM:
0666eb06 652 dev_warn(&card->gdev->dev,
efbbc1d5 653 "MAC address %pM is not authorized\n", mac);
0666eb06
UB		 654 break;
655 }
4a71df50 656 }
efbbc1d5 657 return rc;
4a71df50
FB		 658}
659
660static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
661{
efbbc1d5
EC		 662 int rc;
663
847a50fd 664 QETH_CARD_TEXT(card, 2, "L2Delmac");
4a71df50
FB		 665 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
666 return 0;
efbbc1d5
EC		 667 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
668 IPA_CMD_DELVMAC));
669 if (rc == 0)
670 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
671 return rc;
4a71df50
FB		 672}
673
674static int qeth_l2_request_initial_mac(struct qeth_card *card)
675{
676 int rc = 0;
677 char vendor_pre[] = {0x02, 0x00, 0x00};
678
d11ba0c4
PT		 679 QETH_DBF_TEXT(SETUP, 2, "doL2init");
680 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
4a71df50 681
a134884a
SR		 682 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
683 rc = qeth_query_setadapterparms(card);
684 if (rc) {
685 QETH_DBF_MESSAGE(2, "could not query adapter "
686 "parameters on device %s: x%x\n",
687 CARD_BUS_ID(card), rc);
688 }
4a71df50
FB		 689 }
690
5113fec0
UB		 691 if (card->info.type == QETH_CARD_TYPE_IQD ||
692 card->info.type == QETH_CARD_TYPE_OSM ||
693 card->info.type == QETH_CARD_TYPE_OSX ||
694 card->info.guestlan) {
4a71df50
FB		 695 rc = qeth_setadpparms_change_macaddr(card);
696 if (rc) {
14cc21b6
FB		 697 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
698 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1aec42bc 699 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
4a71df50
FB		 700 return rc;
701 }
d11ba0c4 702 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
4a71df50 703 } else {
1833611d 704 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 705 memcpy(card->dev->dev_addr, vendor_pre, 3);
706 }
707 return 0;
708}
709
710static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
711{
712 struct sockaddr *addr = p;
509e2562 713 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 714 int rc = 0;
715
847a50fd 716 QETH_CARD_TEXT(card, 3, "setmac");
4a71df50
FB		 717
718 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
847a50fd 719 QETH_CARD_TEXT(card, 3, "setmcINV");
4a71df50
FB		 720 return -EOPNOTSUPP;
721 }
722
5113fec0
UB		 723 if (card->info.type == QETH_CARD_TYPE_OSN ||
724 card->info.type == QETH_CARD_TYPE_OSM ||
725 card->info.type == QETH_CARD_TYPE_OSX) {
847a50fd 726 QETH_CARD_TEXT(card, 3, "setmcTYP");
4a71df50
FB		 727 return -EOPNOTSUPP;
728 }
847a50fd 729 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
8e98ac48 730 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 731 QETH_CARD_TEXT(card, 3, "setmcREC");
8e98ac48
UB		 732 return -ERESTARTSYS;
733 }
4a71df50 734 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
efbbc1d5 735 if (!rc || (rc == -ENOENT))
4a71df50 736 rc = qeth_l2_send_setmac(card, addr->sa_data);
e0a8114c 737 return rc ? -EINVAL : 0;
4a71df50
FB		 738}
739
0db587b0
EC		 740static void qeth_promisc_to_bridge(struct qeth_card *card)
741{
742 struct net_device *dev = card->dev;
743 enum qeth_ipa_promisc_modes promisc_mode;
744 int role;
745 int rc;
746
747 QETH_CARD_TEXT(card, 3, "pmisc2br");
748
749 if (!card->options.sbp.reflect_promisc)
750 return;
751 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
752 : SET_PROMISC_MODE_OFF;
753 if (promisc_mode == card->info.promisc_mode)
754 return;
755
756 if (promisc_mode == SET_PROMISC_MODE_ON) {
757 if (card->options.sbp.reflect_promisc_primary)
758 role = QETH_SBP_ROLE_PRIMARY;
759 else
760 role = QETH_SBP_ROLE_SECONDARY;
761 } else
762 role = QETH_SBP_ROLE_NONE;
763
764 rc = qeth_bridgeport_setrole(card, role);
765 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
766 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
767 if (!rc) {
768 card->options.sbp.role = role;
769 card->info.promisc_mode = promisc_mode;
770 }
771}
772
4a71df50
FB		 773static void qeth_l2_set_multicast_list(struct net_device *dev)
774{
509e2562 775 struct qeth_card *card = dev->ml_priv;
ccffad25 776 struct netdev_hw_addr *ha;
4a71df50
FB		 777
778 if (card->info.type == QETH_CARD_TYPE_OSN)
779 return ;
780
847a50fd 781 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 782 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
783 (card->state != CARD_STATE_UP))
784 return;
70919e23 785 qeth_l2_del_all_mc(card, 1);
4a71df50 786 spin_lock_bh(&card->mclock);
22bedad3
JP		 787 netdev_for_each_mc_addr(ha, dev)
788 qeth_l2_add_mc(card, ha->addr, 0);
7db2266a 789
32e7bfc4 790 netdev_for_each_uc_addr(ha, dev)
ccffad25 791 qeth_l2_add_mc(card, ha->addr, 1);
7db2266a 792
4a71df50 793 spin_unlock_bh(&card->mclock);
0db587b0
EC		 794 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
795 qeth_setadp_promisc_mode(card);
796 else
797 qeth_promisc_to_bridge(card);
4a71df50
FB		 798}
799
800static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
801{
802 int rc;
803 struct qeth_hdr *hdr = NULL;
804 int elements = 0;
509e2562 805 struct qeth_card *card = dev->ml_priv;
4a71df50 806 struct sk_buff *new_skb = skb;
ce73e10e 807 int cast_type = qeth_l2_get_cast_type(card, skb);
290b8348 808 struct qeth_qdio_out_q *queue;
4a71df50 809 int tx_bytes = skb->len;
683d718a
FB		 810 int data_offset = -1;
811 int elements_needed = 0;
812 int hd_len = 0;
4a71df50 813
290b8348
SR		 814 if (card->qdio.do_prio_queueing || (cast_type &&
815 card->info.is_multicast_different))
816 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
817 qeth_get_ip_version(skb), cast_type)];
818 else
819 queue = card->qdio.out_qs[card->qdio.default_out_queue];
820
4a71df50
FB		 821 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
822 card->stats.tx_carrier_errors++;
823 goto tx_drop;
824 }
825
826 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
827 (skb->protocol == htons(ETH_P_IPV6)))
828 goto tx_drop;
829
830 if (card->options.performance_stats) {
831 card->perf_stats.outbound_cnt++;
832 card->perf_stats.outbound_start_time = qeth_get_micros();
833 }
834 netif_stop_queue(dev);
835
4a71df50
FB		 836 if (card->info.type == QETH_CARD_TYPE_OSN)
837 hdr = (struct qeth_hdr *)skb->data;
838 else {
64ef8957 839 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 840 new_skb = skb;
841 data_offset = ETH_HLEN;
842 hd_len = ETH_HLEN;
843 hdr = kmem_cache_alloc(qeth_core_header_cache,
844 GFP_ATOMIC);
845 if (!hdr)
846 goto tx_drop;
847 elements_needed++;
848 skb_reset_mac_header(new_skb);
43934077 849 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
683d718a
FB		 850 hdr->hdr.l2.pkt_length = new_skb->len;
851 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
852 skb_mac_header(new_skb), ETH_HLEN);
853 } else {
854 /* create a clone with writeable headroom */
855 new_skb = skb_realloc_headroom(skb,
856 sizeof(struct qeth_hdr));
857 if (!new_skb)
858 goto tx_drop;
859 hdr = (struct qeth_hdr *)skb_push(new_skb,
f90b744e 860 sizeof(struct qeth_hdr));
683d718a 861 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
43934077 862 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
4d7def2a
TR		 863 if (new_skb->ip_summed == CHECKSUM_PARTIAL)
864 qeth_l2_hdr_csum(card, hdr, new_skb);
683d718a 865 }
4a71df50
FB		 866 }
867
065cc782 868 elements = qeth_get_elements_no(card, new_skb, elements_needed);
64ef8957
FB		 869 if (!elements) {
870 if (data_offset >= 0)
871 kmem_cache_free(qeth_core_header_cache, hdr);
872 goto tx_drop;
f61a0d05 873 }
4a71df50 874
51aa165c 875 if (card->info.type != QETH_CARD_TYPE_IQD) {
d4ae1f5e 876 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
51aa165c
FB		 877 sizeof(struct qeth_hdr_layer2)))
878 goto tx_drop;
4a71df50 879 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 880 elements);
51aa165c 881 } else
4a71df50 882 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 883 elements, data_offset, hd_len);
4a71df50
FB		 884 if (!rc) {
885 card->stats.tx_packets++;
886 card->stats.tx_bytes += tx_bytes;
887 if (new_skb != skb)
888 dev_kfree_skb_any(skb);
ec634fe3 889 rc = NETDEV_TX_OK;
4a71df50 890 } else {
683d718a
FB		 891 if (data_offset >= 0)
892 kmem_cache_free(qeth_core_header_cache, hdr);
893
4a71df50
FB		 894 if (rc == -EBUSY) {
895 if (new_skb != skb)
896 dev_kfree_skb_any(new_skb);
897 return NETDEV_TX_BUSY;
898 } else
899 goto tx_drop;
900 }
901
902 netif_wake_queue(dev);
903 if (card->options.performance_stats)
904 card->perf_stats.outbound_time += qeth_get_micros() -
905 card->perf_stats.outbound_start_time;
906 return rc;
907
908tx_drop:
909 card->stats.tx_dropped++;
910 card->stats.tx_errors++;
911 if ((new_skb != skb) && new_skb)
912 dev_kfree_skb_any(new_skb);
913 dev_kfree_skb_any(skb);
d0ec0f54 914 netif_wake_queue(dev);
4a71df50
FB		 915 return NETDEV_TX_OK;
916}
917
39423440 918static int __qeth_l2_open(struct net_device *dev)
4a71df50 919{
509e2562 920 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 921 int rc = 0;
4a71df50 922
847a50fd 923 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 924 if (card->state == CARD_STATE_UP)
925 return rc;
4a71df50
FB		 926 if (card->state != CARD_STATE_SOFTSETUP)
927 return -ENODEV;
928
929 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
930 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
847a50fd 931 QETH_CARD_TEXT(card, 4, "nomacadr");
4a71df50
FB		 932 return -EPERM;
933 }
934 card->data.state = CH_STATE_UP;
935 card->state = CARD_STATE_UP;
4a71df50
FB		 936 netif_start_queue(dev);
937
a1c3ed4c
FB		 938 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
939 napi_enable(&card->napi);
940 napi_schedule(&card->napi);
941 } else
942 rc = -EIO;
943 return rc;
4a71df50
FB		 944}
945
39423440
UB		 946static int qeth_l2_open(struct net_device *dev)
947{
948 struct qeth_card *card = dev->ml_priv;
949
950 QETH_CARD_TEXT(card, 5, "qethope_");
951 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
952 QETH_CARD_TEXT(card, 3, "openREC");
953 return -ERESTARTSYS;
954 }
955 return __qeth_l2_open(dev);
956}
957
4a71df50
FB		 958static int qeth_l2_stop(struct net_device *dev)
959{
509e2562 960 struct qeth_card *card = dev->ml_priv;
4a71df50 961
847a50fd 962 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 963 netif_tx_disable(dev);
a1c3ed4c 964 if (card->state == CARD_STATE_UP) {
4a71df50 965 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 966 napi_disable(&card->napi);
967 }
4a71df50
FB		 968 return 0;
969}
970
971static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
972{
973 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
974
b4d72c08 975 qeth_l2_create_device_attributes(&gdev->dev);
4a71df50
FB		 976 INIT_LIST_HEAD(&card->vid_list);
977 INIT_LIST_HEAD(&card->mc_list);
978 card->options.layer2 = 1;
1da74b1c 979 card->info.hwtrap = 0;
4a71df50
FB		 980 return 0;
981}
982
983static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
984{
985 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
986
b4d72c08 987 qeth_l2_remove_device_attributes(&cgdev->dev);
f2148565 988 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 989 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
990
70919e23 991 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 992 qeth_l2_set_offline(cgdev);
4a71df50
FB		 993
994 if (card->dev) {
995 unregister_netdev(card->dev);
996 card->dev = NULL;
997 }
4a71df50
FB		 998 return;
999}
1000
0fc0b732 1001static const struct ethtool_ops qeth_l2_ethtool_ops = {
4a71df50 1002 .get_link = ethtool_op_get_link,
4a71df50
FB		 1003 .get_strings = qeth_core_get_strings,
1004 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1005 .get_sset_count = qeth_core_get_sset_count,
4a71df50 1006 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 1007 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 1008};
1009
0fc0b732 1010static const struct ethtool_ops qeth_l2_osn_ops = {
4a71df50
FB		 1011 .get_strings = qeth_core_get_strings,
1012 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1013 .get_sset_count = qeth_core_get_sset_count,
4a71df50
FB		 1014 .get_drvinfo = qeth_core_get_drvinfo,
1015};
1016
3d58cefd 1017static const struct net_device_ops qeth_l2_netdev_ops = {
8403b13c
FB		 1018 .ndo_open = qeth_l2_open,
1019 .ndo_stop = qeth_l2_stop,
1020 .ndo_get_stats = qeth_get_stats,
1021 .ndo_start_xmit = qeth_l2_hard_start_xmit,
1022 .ndo_validate_addr = eth_validate_addr,
afc4b13d 1023 .ndo_set_rx_mode = qeth_l2_set_multicast_list,
8403b13c
FB		 1024 .ndo_do_ioctl = qeth_l2_do_ioctl,
1025 .ndo_set_mac_address = qeth_l2_set_mac_address,
1026 .ndo_change_mtu = qeth_change_mtu,
1027 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
1028 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
1029 .ndo_tx_timeout = qeth_tx_timeout,
4d7def2a
TR		 1030 .ndo_fix_features = qeth_l2_fix_features,
1031 .ndo_set_features = qeth_l2_set_features
8403b13c
FB		 1032};
1033
4a71df50
FB		 1034static int qeth_l2_setup_netdev(struct qeth_card *card)
1035{
1036 switch (card->info.type) {
4a71df50 1037 case QETH_CARD_TYPE_IQD:
c835a677
TG		 1038 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
1039 ether_setup);
4a71df50
FB		 1040 break;
1041 case QETH_CARD_TYPE_OSN:
c835a677
TG		 1042 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
1043 ether_setup);
4a71df50
FB		 1044 card->dev->flags |= IFF_NOARP;
1045 break;
1046 default:
1047 card->dev = alloc_etherdev(0);
1048 }
1049
1050 if (!card->dev)
1051 return -ENODEV;
1052
509e2562 1053 card->dev->ml_priv = card;
4a71df50 1054 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 1055 card->dev->mtu = card->info.initial_mtu;
8403b13c 1056 card->dev->netdev_ops = &qeth_l2_netdev_ops;
7ad24ea4
WK		 1057 card->dev->ethtool_ops =
1058 (card->info.type != QETH_CARD_TYPE_OSN) ?
1059 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
f646968f 1060 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4d7def2a
TR		 1061 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
1062 card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1063 /* Turn on RX offloading per default */
1064 card->dev->features |= NETIF_F_RXCSUM;
1065 }
4a71df50
FB		 1066 card->info.broadcast_capable = 1;
1067 qeth_l2_request_initial_mac(card);
1068 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 1069 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
4a71df50
FB		 1070 return register_netdev(card->dev);
1071}
1072
4d7def2a
TR		 1073static int qeth_l2_start_ipassists(struct qeth_card *card)
1074{
1075 /* configure isolation level */
1076 if (qeth_set_access_ctrl_online(card, 0))
1077 return -ENODEV;
1078 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
1079 qeth_set_rx_csum(card, 1);
1080 qeth_start_ipa_tx_checksum(card);
1081 return 0;
1082}
1083
4a71df50
FB		 1084static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1085{
1086 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1087 int rc = 0;
1088 enum qeth_card_states recover_flag;
1089
9dc48ccc 1090 mutex_lock(&card->discipline_mutex);
c4949f07 1091 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1092 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1093 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 1094
4a71df50 1095 recover_flag = card->state;
4a71df50
FB		 1096 rc = qeth_core_hardsetup_card(card);
1097 if (rc) {
1aec42bc 1098 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
aa909224 1099 rc = -ENODEV;
4a71df50
FB		 1100 goto out_remove;
1101 }
c044dc21
EC		 1102 qeth_bridgeport_query_support(card);
1103 if (card->options.sbp.supported_funcs)
1104 dev_info(&card->gdev->dev,
9c23f4da 1105 "The device represents a Bridge Capable Port\n");
395672e0 1106 qeth_trace_features(card);
4a71df50 1107
aa909224
UB		 1108 if (!card->dev && qeth_l2_setup_netdev(card)) {
1109 rc = -ENODEV;
4a71df50 1110 goto out_remove;
aa909224 1111 }
4a71df50
FB		 1112
1113 if (card->info.type != QETH_CARD_TYPE_OSN)
1114 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1115
1da74b1c
FB		 1116 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1117 if (card->info.hwtrap &&
1118 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1119 card->info.hwtrap = 0;
1120 } else
1121 card->info.hwtrap = 0;
1122
b4d72c08
EC		 1123 qeth_l2_setup_bridgeport_attrs(card);
1124
4a71df50 1125 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 1126 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 1127 qeth_print_status_message(card);
1128
1129 /* softsetup */
d11ba0c4 1130 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 1131
1132 rc = qeth_send_startlan(card);
1133 if (rc) {
d11ba0c4 1134 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 1135 if (rc == 0xe080) {
74eacdb9
FB		 1136 dev_warn(&card->gdev->dev,
1137 "The LAN is offline\n");
4a71df50 1138 card->lan_online = 0;
2b6203bb 1139 goto contin;
4a71df50 1140 }
aa909224 1141 rc = -ENODEV;
f2148565 1142 goto out_remove;
4a71df50
FB		 1143 } else
1144 card->lan_online = 1;
1145
2b6203bb 1146contin:
5113fec0 1147 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
0f54761d 1148 (card->info.type == QETH_CARD_TYPE_OSX)) {
4d7def2a 1149 if (qeth_l2_start_ipassists(card))
0f54761d 1150 goto out_remove;
0f54761d 1151 }
5113fec0
UB		 1152
1153 if (card->info.type != QETH_CARD_TYPE_OSN &&
1154 card->info.type != QETH_CARD_TYPE_OSM)
70919e23 1155 qeth_l2_process_vlans(card);
4a71df50
FB		 1156
1157 netif_tx_disable(card->dev);
1158
1159 rc = qeth_init_qdio_queues(card);
1160 if (rc) {
d11ba0c4 1161 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 1162 rc = -ENODEV;
4a71df50
FB		 1163 goto out_remove;
1164 }
1165 card->state = CARD_STATE_SOFTSETUP;
2b6203bb
UB		 1166 if (card->lan_online)
1167 netif_carrier_on(card->dev);
1168 else
1169 netif_carrier_off(card->dev);
4a71df50
FB		 1170
1171 qeth_set_allowed_threads(card, 0xffffffff, 0);
1172 if (recover_flag == CARD_STATE_RECOVER) {
1173 if (recovery_mode &&
1174 card->info.type != QETH_CARD_TYPE_OSN) {
39423440 1175 __qeth_l2_open(card->dev);
4a71df50
FB		 1176 } else {
1177 rtnl_lock();
1178 dev_open(card->dev);
1179 rtnl_unlock();
1180 }
1181 /* this also sets saved unicast addresses */
1182 qeth_l2_set_multicast_list(card->dev);
1183 }
1184 /* let user_space know that device is online */
1185 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1186 mutex_unlock(&card->conf_mutex);
9dc48ccc 1187 mutex_unlock(&card->discipline_mutex);
4a71df50 1188 return 0;
aa909224 1189
4a71df50 1190out_remove:
4a71df50
FB		 1191 qeth_l2_stop_card(card, 0);
1192 ccw_device_set_offline(CARD_DDEV(card));
1193 ccw_device_set_offline(CARD_WDEV(card));
1194 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 1195 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1196 if (recover_flag == CARD_STATE_RECOVER)
1197 card->state = CARD_STATE_RECOVER;
1198 else
1199 card->state = CARD_STATE_DOWN;
c4949f07 1200 mutex_unlock(&card->conf_mutex);
9dc48ccc 1201 mutex_unlock(&card->discipline_mutex);
aa909224 1202 return rc;
4a71df50
FB		 1203}
1204
1205static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1206{
1207 return __qeth_l2_set_online(gdev, 0);
1208}
1209
1210static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1211 int recovery_mode)
1212{
1213 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1214 int rc = 0, rc2 = 0, rc3 = 0;
1215 enum qeth_card_states recover_flag;
1216
9dc48ccc 1217 mutex_lock(&card->discipline_mutex);
c4949f07 1218 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1219 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1220 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 1221
1222 if (card->dev && netif_carrier_ok(card->dev))
1223 netif_carrier_off(card->dev);
1224 recover_flag = card->state;
1da74b1c
FB		 1225 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1226 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1227 card->info.hwtrap = 1;
1228 }
0f5623c9 1229 qeth_l2_stop_card(card, recovery_mode);
4a71df50
FB		 1230 rc = ccw_device_set_offline(CARD_DDEV(card));
1231 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1232 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1233 if (!rc)
1234 rc = (rc2) ? rc2 : rc3;
1235 if (rc)
d11ba0c4 1236 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 1237 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1238 if (recover_flag == CARD_STATE_UP)
1239 card->state = CARD_STATE_RECOVER;
1240 /* let user_space know that device is offline */
1241 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1242 mutex_unlock(&card->conf_mutex);
9dc48ccc 1243 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 1244 return 0;
1245}
1246
1247static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1248{
1249 return __qeth_l2_set_offline(cgdev, 0);
1250}
1251
1252static int qeth_l2_recover(void *ptr)
1253{
1254 struct qeth_card *card;
1255 int rc = 0;
1256
1257 card = (struct qeth_card *) ptr;
847a50fd 1258 QETH_CARD_TEXT(card, 2, "recover1");
4a71df50
FB		 1259 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1260 return 0;
847a50fd 1261 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 1262 dev_warn(&card->gdev->dev,
1263 "A recovery process has been started for the device\n");
65d8013c 1264 qeth_set_recovery_task(card);
4a71df50
FB		 1265 __qeth_l2_set_offline(card->gdev, 1);
1266 rc = __qeth_l2_set_online(card->gdev, 1);
4a71df50 1267 if (!rc)
74eacdb9
FB		 1268 dev_info(&card->gdev->dev,
1269 "Device successfully recovered!\n");
28a7e4c9 1270 else {
0f54761d
SR		 1271 qeth_close_dev(card);
1272 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 1273 "failed to recover an error on the device\n");
28a7e4c9 1274 }
65d8013c 1275 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 1276 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1277 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 1278 return 0;
1279}
1280
1281static int __init qeth_l2_init(void)
1282{
74eacdb9 1283 pr_info("register layer 2 discipline\n");
4a71df50
FB		 1284 return 0;
1285}
1286
1287static void __exit qeth_l2_exit(void)
1288{
74eacdb9 1289 pr_info("unregister layer 2 discipline\n");
4a71df50
FB		 1290}
1291
1292static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1293{
1294 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 1295 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 1296 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1297 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 1298 qeth_qdio_clear_card(card, 0);
1299 qeth_clear_qdio_buffers(card);
22ae2790 1300 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1301}
1302
bbcfcdc8
FB		 1303static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1304{
1305 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1306
1307 if (card->dev)
1308 netif_device_detach(card->dev);
1309 qeth_set_allowed_threads(card, 0, 1);
1310 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1311 if (gdev->state == CCWGROUP_OFFLINE)
1312 return 0;
1313 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 1314 if (card->info.hwtrap)
1315 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 1316 __qeth_l2_set_offline(card->gdev, 1);
1317 } else
1318 __qeth_l2_set_offline(card->gdev, 0);
1319 return 0;
1320}
1321
1322static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1323{
1324 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1325 int rc = 0;
1326
1327 if (gdev->state == CCWGROUP_OFFLINE)
1328 goto out;
1329
1330 if (card->state == CARD_STATE_RECOVER) {
1331 rc = __qeth_l2_set_online(card->gdev, 1);
1332 if (rc) {
869da90b
UB		 1333 rtnl_lock();
1334 dev_close(card->dev);
1335 rtnl_unlock();
bbcfcdc8
FB		 1336 }
1337 } else
1338 rc = __qeth_l2_set_online(card->gdev, 0);
1339out:
1340 qeth_set_allowed_threads(card, 0xffffffff, 0);
1341 if (card->dev)
1342 netif_device_attach(card->dev);
1343 if (rc)
1344 dev_warn(&card->gdev->dev, "The qeth device driver "
1345 "failed to recover an error on the device\n");
1346 return rc;
1347}
1348
c044dc21
EC		 1349/* Returns zero if the command is successfully "consumed" */
1350static int qeth_l2_control_event(struct qeth_card *card,
1351 struct qeth_ipa_cmd *cmd)
1352{
1353 switch (cmd->hdr.command) {
9c23f4da
EC		 1354 case IPA_CMD_SETBRIDGEPORT_OSA:
1355 case IPA_CMD_SETBRIDGEPORT_IQD:
c044dc21
EC		 1356 if (cmd->data.sbp.hdr.command_code ==
1357 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1358 qeth_bridge_state_change(card, cmd);
1359 return 0;
1360 } else
1361 return 1;
1362 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1363 qeth_bridge_host_event(card, cmd);
1364 return 0;
1365 default:
1366 return 1;
1367 }
1368}
1369
c041f2d4
SO		 1370struct qeth_discipline qeth_l2_discipline = {
1371 .start_poll = qeth_qdio_start_poll,
1372 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1373 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1374 .recover = qeth_l2_recover,
1375 .setup = qeth_l2_probe_device,
4a71df50
FB		 1376 .remove = qeth_l2_remove_device,
1377 .set_online = qeth_l2_set_online,
1378 .set_offline = qeth_l2_set_offline,
1379 .shutdown = qeth_l2_shutdown,
bbcfcdc8
FB		 1380 .freeze = qeth_l2_pm_suspend,
1381 .thaw = qeth_l2_pm_resume,
1382 .restore = qeth_l2_pm_resume,
c044dc21 1383 .control_event_handler = qeth_l2_control_event,
4a71df50 1384};
c041f2d4 1385EXPORT_SYMBOL_GPL(qeth_l2_discipline);
4a71df50
FB		 1386
1387static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1388 struct qeth_cmd_buffer *iob)
1389{
1390 unsigned long flags;
1391 int rc = 0;
1392
847a50fd 1393 QETH_CARD_TEXT(card, 5, "osndctrd");
4a71df50
FB		 1394
1395 wait_event(card->wait_q,
1396 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1397 qeth_prepare_control_data(card, len, iob);
847a50fd 1398 QETH_CARD_TEXT(card, 6, "osnoirqp");
4a71df50
FB		 1399 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1400 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1401 (addr_t) iob, 0, 0);
1402 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1403 if (rc) {
14cc21b6 1404 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4a71df50 1405 "ccw_device_start rc = %i\n", rc);
847a50fd 1406 QETH_CARD_TEXT_(card, 2, " err%d", rc);
4a71df50
FB		 1407 qeth_release_buffer(iob->channel, iob);
1408 atomic_set(&card->write.irq_pending, 0);
1409 wake_up(&card->wait_q);
1410 }
1411 return rc;
1412}
1413
1414static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1415 struct qeth_cmd_buffer *iob, int data_len)
1416{
1417 u16 s1, s2;
1418
847a50fd 1419 QETH_CARD_TEXT(card, 4, "osndipa");
4a71df50
FB		 1420
1421 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1422 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1423 s2 = (u16)data_len;
1424 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1425 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1426 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1427 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1428 return qeth_osn_send_control_data(card, s1, iob);
1429}
1430
1431int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1432{
1433 struct qeth_cmd_buffer *iob;
1434 struct qeth_card *card;
1435 int rc;
1436
4a71df50
FB		 1437 if (!dev)
1438 return -ENODEV;
509e2562 1439 card = dev->ml_priv;
4a71df50
FB		 1440 if (!card)
1441 return -ENODEV;
847a50fd 1442 QETH_CARD_TEXT(card, 2, "osnsdmc");
c3521254 1443 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 1444 return -ENODEV;
1445 iob = qeth_wait_for_buffer(&card->write);
1446 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1447 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1448 return rc;
1449}
1450EXPORT_SYMBOL(qeth_osn_assist);
1451
1452int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1453 int (*assist_cb)(struct net_device *, void *),
1454 int (*data_cb)(struct sk_buff *))
1455{
1456 struct qeth_card *card;
1457
4a71df50
FB		 1458 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1459 if (*dev == NULL)
1460 return -ENODEV;
509e2562 1461 card = (*dev)->ml_priv;
4a71df50
FB		 1462 if (!card)
1463 return -ENODEV;
847a50fd 1464 QETH_CARD_TEXT(card, 2, "osnreg");
4a71df50
FB		 1465 if ((assist_cb == NULL) || (data_cb == NULL))
1466 return -EINVAL;
1467 card->osn_info.assist_cb = assist_cb;
1468 card->osn_info.data_cb = data_cb;
1469 return 0;
1470}
1471EXPORT_SYMBOL(qeth_osn_register);
1472
1473void qeth_osn_deregister(struct net_device *dev)
1474{
1475 struct qeth_card *card;
1476
4a71df50
FB		 1477 if (!dev)
1478 return;
509e2562 1479 card = dev->ml_priv;
4a71df50
FB		 1480 if (!card)
1481 return;
847a50fd 1482 QETH_CARD_TEXT(card, 2, "osndereg");
4a71df50
FB		 1483 card->osn_info.assist_cb = NULL;
1484 card->osn_info.data_cb = NULL;
1485 return;
1486}
1487EXPORT_SYMBOL(qeth_osn_deregister);
1488
b4d72c08
EC		 1489/* SETBRIDGEPORT support, async notifications */
1490
9f48b9db
EC		 1491enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1492
1493/**
1494 * qeth_bridge_emit_host_event() - bridgeport address change notification
1495 * @card: qeth_card structure pointer, for udev events.
1496 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1497 * and reset token and addr_lnid are unused and may be NULL.
1498 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1499 * object, 0 - addition of an object.
1500 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1501 * @token: "network token" structure identifying physical address of the port.
1502 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1503 *
1504 * This function is called when registrations and deregistrations are
1505 * reported by the hardware, and also when notifications are enabled -
1506 * for all currently registered addresses.
1507 */
1508static void qeth_bridge_emit_host_event(struct qeth_card *card,
1509 enum qeth_an_event_type evtype,
1510 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1511{
1512 char str[7][32];
1513 char *env[8];
1514 int i = 0;
1515
1516 switch (evtype) {
1517 case anev_reg_unreg:
1518 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1519 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1520 ? "deregister" : "register");
1521 env[i] = str[i]; i++;
1522 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1523 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1524 addr_lnid->lnid);
1525 env[i] = str[i]; i++;
1526 }
1527 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
9846e70b 1528 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
4d7def2a 1529 addr_lnid->mac);
9f48b9db
EC		 1530 env[i] = str[i]; i++;
1531 }
1532 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1533 token->cssid, token->ssid, token->devnum);
1534 env[i] = str[i]; i++;
1535 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1536 env[i] = str[i]; i++;
1537 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1538 token->chpid);
1539 env[i] = str[i]; i++;
1540 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1541 env[i] = str[i]; i++;
1542 break;
1543 case anev_abort:
1544 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1545 env[i] = str[i]; i++;
1546 break;
1547 case anev_reset:
1548 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1549 env[i] = str[i]; i++;
1550 break;
1551 }
1552 env[i] = NULL;
1553 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1554}
1555
b4d72c08
EC		 1556struct qeth_bridge_state_data {
1557 struct work_struct worker;
1558 struct qeth_card *card;
1559 struct qeth_sbp_state_change qports;
1560};
1561
1562static void qeth_bridge_state_change_worker(struct work_struct *work)
1563{
1564 struct qeth_bridge_state_data *data =
1565 container_of(work, struct qeth_bridge_state_data, worker);
1566 /* We are only interested in the first entry - local port */
1567 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1568 char env_locrem[32];
1569 char env_role[32];
1570 char env_state[32];
1571 char *env[] = {
1572 env_locrem,
1573 env_role,
1574 env_state,
1575 NULL
1576 };
1577
1578 /* Role should not change by itself, but if it did, */
1579 /* information from the hardware is authoritative. */
1580 mutex_lock(&data->card->conf_mutex);
1581 data->card->options.sbp.role = entry->role;
1582 mutex_unlock(&data->card->conf_mutex);
1583
1584 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1585 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1586 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1587 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1588 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1589 "<INVALID>");
1590 snprintf(env_state, sizeof(env_state), "STATE=%s",
1591 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1592 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1593 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1594 "<INVALID>");
1595 kobject_uevent_env(&data->card->gdev->dev.kobj,
1596 KOBJ_CHANGE, env);
1597 kfree(data);
1598}
1599
c044dc21
EC		 1600static void qeth_bridge_state_change(struct qeth_card *card,
1601 struct qeth_ipa_cmd *cmd)
b4d72c08
EC		 1602{
1603 struct qeth_sbp_state_change *qports =
1604 &cmd->data.sbp.data.state_change;
1605 struct qeth_bridge_state_data *data;
1606 int extrasize;
1607
1608 QETH_CARD_TEXT(card, 2, "brstchng");
1609 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
8a593148 1610 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
b4d72c08
EC		 1611 return;
1612 }
1613 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1614 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1615 GFP_ATOMIC);
1616 if (!data) {
1617 QETH_CARD_TEXT(card, 2, "BPSalloc");
1618 return;
1619 }
1620 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1621 data->card = card;
1622 memcpy(&data->qports, qports,
1623 sizeof(struct qeth_sbp_state_change) + extrasize);
1624 queue_work(qeth_wq, &data->worker);
1625}
b4d72c08 1626
9f48b9db
EC		 1627struct qeth_bridge_host_data {
1628 struct work_struct worker;
1629 struct qeth_card *card;
1630 struct qeth_ipacmd_addr_change hostevs;
1631};
1632
1633static void qeth_bridge_host_event_worker(struct work_struct *work)
1634{
1635 struct qeth_bridge_host_data *data =
1636 container_of(work, struct qeth_bridge_host_data, worker);
1637 int i;
1638
1639 if (data->hostevs.lost_event_mask) {
1640 dev_info(&data->card->gdev->dev,
9c23f4da 1641"Address notification from the Bridge Port stopped %s (%s)\n",
9f48b9db
EC		 1642 data->card->dev->name,
1643 (data->hostevs.lost_event_mask == 0x01)
1644 ? "Overflow"
1645 : (data->hostevs.lost_event_mask == 0x02)
1646 ? "Bridge port state change"
1647 : "Unknown reason");
1648 mutex_lock(&data->card->conf_mutex);
1649 data->card->options.sbp.hostnotification = 0;
1650 mutex_unlock(&data->card->conf_mutex);
1651 qeth_bridge_emit_host_event(data->card, anev_abort,
1652 0, NULL, NULL);
1653 } else
1654 for (i = 0; i < data->hostevs.num_entries; i++) {
1655 struct qeth_ipacmd_addr_change_entry *entry =
1656 &data->hostevs.entry[i];
1657 qeth_bridge_emit_host_event(data->card,
1658 anev_reg_unreg,
1659 entry->change_code,
1660 &entry->token, &entry->addr_lnid);
1661 }
1662 kfree(data);
1663}
1664
c044dc21
EC		 1665static void qeth_bridge_host_event(struct qeth_card *card,
1666 struct qeth_ipa_cmd *cmd)
9f48b9db
EC		 1667{
1668 struct qeth_ipacmd_addr_change *hostevs =
1669 &cmd->data.addrchange;
1670 struct qeth_bridge_host_data *data;
1671 int extrasize;
1672
1673 QETH_CARD_TEXT(card, 2, "brhostev");
1674 if (cmd->hdr.return_code != 0x0000) {
1675 if (cmd->hdr.return_code == 0x0010) {
1676 if (hostevs->lost_event_mask == 0x00)
1677 hostevs->lost_event_mask = 0xff;
1678 } else {
1679 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1680 cmd->hdr.return_code);
1681 return;
1682 }
1683 }
1684 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1685 hostevs->num_entries;
1686 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1687 GFP_ATOMIC);
1688 if (!data) {
1689 QETH_CARD_TEXT(card, 2, "BPHalloc");
1690 return;
1691 }
1692 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1693 data->card = card;
1694 memcpy(&data->hostevs, hostevs,
1695 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1696 queue_work(qeth_wq, &data->worker);
1697}
9f48b9db 1698
b4d72c08
EC		 1699/* SETBRIDGEPORT support; sending commands */
1700
1701struct _qeth_sbp_cbctl {
1702 u16 ipa_rc;
1703 u16 cmd_rc;
1704 union {
1705 u32 supported;
1706 struct {
1707 enum qeth_sbp_roles *role;
1708 enum qeth_sbp_states *state;
1709 } qports;
1710 } data;
1711};
1712
1713/**
1714 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1715 * @card: qeth_card structure pointer, for debug messages.
1716 * @cbctl: state structure with hardware return codes.
1717 * @setcmd: IPA command code
1718 *
1719 * Returns negative errno-compatible error indication or 0 on success.
1720 */
1721static int qeth_bridgeport_makerc(struct qeth_card *card,
1722 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1723{
1724 int rc;
9c23f4da 1725 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
b4d72c08 1726
9c23f4da
EC		 1727 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1728 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
b4d72c08
EC		 1729 switch (cbctl->cmd_rc) {
1730 case 0x0000:
1731 rc = 0;
1732 break;
9c23f4da 1733 case 0x2B04:
b4d72c08 1734 case 0x0004:
ffb95251 1735 rc = -EOPNOTSUPP;
b4d72c08 1736 break;
9c23f4da 1737 case 0x2B0C:
b4d72c08
EC		 1738 case 0x000C: /* Not configured as bridge Port */
1739 rc = -ENODEV; /* maybe not the best code here? */
1740 dev_err(&card->gdev->dev,
9c23f4da 1741 "The device is not configured as a Bridge Port\n");
b4d72c08 1742 break;
9c23f4da 1743 case 0x2B14:
b4d72c08
EC		 1744 case 0x0014: /* Another device is Primary */
1745 switch (setcmd) {
1746 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1747 rc = -EEXIST;
1748 dev_err(&card->gdev->dev,
9c23f4da 1749 "The LAN already has a primary Bridge Port\n");
b4d72c08
EC		 1750 break;
1751 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1752 rc = -EBUSY;
1753 dev_err(&card->gdev->dev,
9c23f4da 1754 "The device is already a primary Bridge Port\n");
b4d72c08
EC		 1755 break;
1756 default:
1757 rc = -EIO;
1758 }
1759 break;
9c23f4da 1760 case 0x2B18:
b4d72c08
EC		 1761 case 0x0018: /* This device is currently Secondary */
1762 rc = -EBUSY;
1763 dev_err(&card->gdev->dev,
9c23f4da 1764 "The device is already a secondary Bridge Port\n");
b4d72c08 1765 break;
9c23f4da 1766 case 0x2B1C:
b4d72c08
EC		 1767 case 0x001C: /* Limit for Secondary devices reached */
1768 rc = -EEXIST;
1769 dev_err(&card->gdev->dev,
9c23f4da 1770 "The LAN cannot have more secondary Bridge Ports\n");
b4d72c08 1771 break;
9c23f4da 1772 case 0x2B24:
b4d72c08
EC		 1773 case 0x0024: /* This device is currently Primary */
1774 rc = -EBUSY;
1775 dev_err(&card->gdev->dev,
9c23f4da 1776 "The device is already a primary Bridge Port\n");
b4d72c08 1777 break;
9c23f4da 1778 case 0x2B20:
b4d72c08
EC		 1779 case 0x0020: /* Not authorized by zManager */
1780 rc = -EACCES;
1781 dev_err(&card->gdev->dev,
9c23f4da 1782 "The device is not authorized to be a Bridge Port\n");
b4d72c08
EC		 1783 break;
1784 default:
1785 rc = -EIO;
1786 }
9c23f4da
EC		 1787 else
1788 switch (cbctl->ipa_rc) {
1789 case IPA_RC_NOTSUPP:
ffb95251 1790 rc = -EOPNOTSUPP;
9c23f4da
EC		 1791 break;
1792 case IPA_RC_UNSUPPORTED_COMMAND:
ffb95251 1793 rc = -EOPNOTSUPP;
9c23f4da
EC		 1794 break;
1795 default:
1796 rc = -EIO;
1797 }
1798
b4d72c08
EC		 1799 if (rc) {
1800 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1801 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1802 }
1803 return rc;
1804}
1805
9c23f4da
EC		 1806static inline int ipa_cmd_sbp(struct qeth_card *card)
1807{
1808 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1809 IPA_CMD_SETBRIDGEPORT_IQD :
1810 IPA_CMD_SETBRIDGEPORT_OSA;
1811}
1812
b4d72c08
EC		 1813static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1814 struct qeth_reply *reply, unsigned long data)
1815{
1816 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1817 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1818 QETH_CARD_TEXT(card, 2, "brqsupcb");
1819 cbctl->ipa_rc = cmd->hdr.return_code;
1820 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1821 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1822 cbctl->data.supported =
1823 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1824 } else {
1825 cbctl->data.supported = 0;
1826 }
1827 return 0;
1828}
1829
1830/**
1831 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1832 * @card: qeth_card structure pointer.
1833 *
1834 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1835 * strucutre: card->options.sbp.supported_funcs.
1836 */
c044dc21 1837static void qeth_bridgeport_query_support(struct qeth_card *card)
b4d72c08
EC		 1838{
1839 struct qeth_cmd_buffer *iob;
1840 struct qeth_ipa_cmd *cmd;
1841 struct _qeth_sbp_cbctl cbctl;
1842
1843 QETH_CARD_TEXT(card, 2, "brqsuppo");
9c23f4da 1844 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1845 if (!iob)
1846 return;
b4d72c08
EC		 1847 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1848 cmd->data.sbp.hdr.cmdlength =
1849 sizeof(struct qeth_ipacmd_sbp_hdr) +
1850 sizeof(struct qeth_sbp_query_cmds_supp);
1851 cmd->data.sbp.hdr.command_code =
1852 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1853 cmd->data.sbp.hdr.used_total = 1;
1854 cmd->data.sbp.hdr.seq_no = 1;
1855 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1856 (void *)&cbctl) ||
1857 qeth_bridgeport_makerc(card, &cbctl,
1858 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1859 /* non-zero makerc signifies failure, and produce messages */
1860 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1861 return;
1862 }
1863 card->options.sbp.supported_funcs = cbctl.data.supported;
1864}
b4d72c08
EC		 1865
1866static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1867 struct qeth_reply *reply, unsigned long data)
1868{
1869 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1870 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1871 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1872
1873 QETH_CARD_TEXT(card, 2, "brqprtcb");
1874 cbctl->ipa_rc = cmd->hdr.return_code;
1875 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1876 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1877 return 0;
1878 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1879 cbctl->cmd_rc = 0xffff;
1880 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1881 return 0;
1882 }
1883 /* first entry contains the state of the local port */
1884 if (qports->num_entries > 0) {
1885 if (cbctl->data.qports.role)
1886 *cbctl->data.qports.role = qports->entry[0].role;
1887 if (cbctl->data.qports.state)
1888 *cbctl->data.qports.state = qports->entry[0].state;
1889 }
1890 return 0;
1891}
1892
1893/**
1894 * qeth_bridgeport_query_ports() - query local bridgeport status.
1895 * @card: qeth_card structure pointer.
1896 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1897 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1898 *
1899 * Returns negative errno-compatible error indication or 0 on success.
1900 *
1901 * 'role' and 'state' are not updated in case of hardware operation failure.
1902 */
1903int qeth_bridgeport_query_ports(struct qeth_card *card,
1904 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1905{
1906 int rc = 0;
1907 struct qeth_cmd_buffer *iob;
1908 struct qeth_ipa_cmd *cmd;
1909 struct _qeth_sbp_cbctl cbctl = {
1910 .data = {
1911 .qports = {
1912 .role = role,
1913 .state = state,
1914 },
1915 },
1916 };
1917
1918 QETH_CARD_TEXT(card, 2, "brqports");
1919 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1920 return -EOPNOTSUPP;
9c23f4da 1921 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1922 if (!iob)
1923 return -ENOMEM;
b4d72c08
EC		 1924 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1925 cmd->data.sbp.hdr.cmdlength =
1926 sizeof(struct qeth_ipacmd_sbp_hdr);
1927 cmd->data.sbp.hdr.command_code =
1928 IPA_SBP_QUERY_BRIDGE_PORTS;
1929 cmd->data.sbp.hdr.used_total = 1;
1930 cmd->data.sbp.hdr.seq_no = 1;
1931 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1932 (void *)&cbctl);
c88394e7 1933 if (rc < 0)
b4d72c08 1934 return rc;
c88394e7 1935 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
b4d72c08
EC		 1936}
1937EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
1938
1939static int qeth_bridgeport_set_cb(struct qeth_card *card,
1940 struct qeth_reply *reply, unsigned long data)
1941{
1942 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1943 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1944 QETH_CARD_TEXT(card, 2, "brsetrcb");
1945 cbctl->ipa_rc = cmd->hdr.return_code;
1946 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1947 return 0;
1948}
1949
1950/**
1951 * qeth_bridgeport_setrole() - Assign primary role to the port.
1952 * @card: qeth_card structure pointer.
1953 * @role: Role to assign.
1954 *
1955 * Returns negative errno-compatible error indication or 0 on success.
1956 */
1957int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1958{
1959 int rc = 0;
1960 int cmdlength;
1961 struct qeth_cmd_buffer *iob;
1962 struct qeth_ipa_cmd *cmd;
1963 struct _qeth_sbp_cbctl cbctl;
1964 enum qeth_ipa_sbp_cmd setcmd;
1965
1966 QETH_CARD_TEXT(card, 2, "brsetrol");
1967 switch (role) {
1968 case QETH_SBP_ROLE_NONE:
1969 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1970 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1971 sizeof(struct qeth_sbp_reset_role);
1972 break;
1973 case QETH_SBP_ROLE_PRIMARY:
1974 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1975 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1976 sizeof(struct qeth_sbp_set_primary);
1977 break;
1978 case QETH_SBP_ROLE_SECONDARY:
1979 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1980 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1981 sizeof(struct qeth_sbp_set_secondary);
1982 break;
1983 default:
1984 return -EINVAL;
1985 }
1986 if (!(card->options.sbp.supported_funcs & setcmd))
1987 return -EOPNOTSUPP;
9c23f4da 1988 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1989 if (!iob)
1990 return -ENOMEM;
b4d72c08
EC		 1991 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1992 cmd->data.sbp.hdr.cmdlength = cmdlength;
1993 cmd->data.sbp.hdr.command_code = setcmd;
1994 cmd->data.sbp.hdr.used_total = 1;
1995 cmd->data.sbp.hdr.seq_no = 1;
1996 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1997 (void *)&cbctl);
c88394e7 1998 if (rc < 0)
b4d72c08 1999 return rc;
c88394e7 2000 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
b4d72c08
EC		 2001}
2002
9f48b9db
EC		 2003/**
2004 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
2005 * @card: qeth_card structure pointer, for debug messages.
2006 *
2007 * Returns negative errno-compatible error indication or 0 on success.
2008 */
2009static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
2010{
2011 int rc;
2012
2013 if (pnso_rc == 0)
2014 switch (response) {
2015 case 0x0001:
2016 rc = 0;
2017 break;
2018 case 0x0004:
2019 case 0x0100:
2020 case 0x0106:
ffb95251 2021 rc = -EOPNOTSUPP;
9f48b9db
EC		 2022 dev_err(&card->gdev->dev,
2023 "Setting address notification failed\n");
2024 break;
2025 case 0x0107:
2026 rc = -EAGAIN;
2027 break;
2028 default:
2029 rc = -EIO;
2030 }
2031 else
2032 rc = -EIO;
2033
2034 if (rc) {
2035 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
2036 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
2037 }
2038 return rc;
2039}
2040
2041static void qeth_bridgeport_an_set_cb(void *priv,
2042 enum qdio_brinfo_entry_type type, void *entry)
2043{
2044 struct qeth_card *card = (struct qeth_card *)priv;
2045 struct qdio_brinfo_entry_l2 *l2entry;
2046 u8 code;
2047
2048 if (type != l2_addr_lnid) {
2049 WARN_ON_ONCE(1);
2050 return;
2051 }
2052
2053 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
2054 code = IPA_ADDR_CHANGE_CODE_MACADDR;
2055 if (l2entry->addr_lnid.lnid)
2056 code |= IPA_ADDR_CHANGE_CODE_VLANID;
2057 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
2058 (struct net_if_token *)&l2entry->nit,
2059 (struct mac_addr_lnid *)&l2entry->addr_lnid);
2060}
2061
2062/**
2063 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
2064 * @card: qeth_card structure pointer.
2065 * @enable: 0 - disable, non-zero - enable notifications
2066 *
2067 * Returns negative errno-compatible error indication or 0 on success.
2068 *
2069 * On enable, emits a series of address notifications udev events for all
2070 * currently registered hosts.
2071 */
2072int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
2073{
2074 int rc;
2075 u16 response;
2076 struct ccw_device *ddev;
2077 struct subchannel_id schid;
2078
2079 if (!card)
2080 return -EINVAL;
2081 if (!card->options.sbp.supported_funcs)
2082 return -EOPNOTSUPP;
2083 ddev = CARD_DDEV(card);
2084 ccw_device_get_schid(ddev, &schid);
2085
2086 if (enable) {
2087 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
2088 rc = qdio_pnso_brinfo(schid, 1, &response,
2089 qeth_bridgeport_an_set_cb, card);
2090 } else
2091 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
2092 return qeth_anset_makerc(card, rc, response);
2093}
2094EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2095
4a71df50
FB		 2096module_init(qeth_l2_init);
2097module_exit(qeth_l2_exit);
2098MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2099MODULE_DESCRIPTION("qeth layer 2 discipline");
2100MODULE_LICENSE("GPL");
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