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s390/qeth: extract qeth_l2_remove_mac()
[mirror_ubuntu-artful-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>
fe5c8028
LD		 22#include <linux/hash.h>
23#include <linux/hashtable.h>
24#include <linux/string.h>
4a71df50 25#include "qeth_core.h"
b4d72c08 26#include "qeth_l2.h"
4a71df50 27
4a71df50
FB		 28static int qeth_l2_set_offline(struct ccwgroup_device *);
29static int qeth_l2_stop(struct net_device *);
30static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
31static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
efbbc1d5 32 enum qeth_ipa_cmds);
fe5c8028 33static void qeth_l2_set_rx_mode(struct net_device *);
4a71df50 34static int qeth_l2_recover(void *);
c044dc21
EC		 35static void qeth_bridgeport_query_support(struct qeth_card *card);
36static void qeth_bridge_state_change(struct qeth_card *card,
37 struct qeth_ipa_cmd *cmd);
38static void qeth_bridge_host_event(struct qeth_card *card,
39 struct qeth_ipa_cmd *cmd);
4a71df50
FB		 40
41static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
42{
509e2562 43 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 44 struct mii_ioctl_data *mii_data;
45 int rc = 0;
46
47 if (!card)
48 return -ENODEV;
49
c3521254 50 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 51 return -ENODEV;
52
53 if (card->info.type == QETH_CARD_TYPE_OSN)
54 return -EPERM;
55
56 switch (cmd) {
57 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
58 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
59 break;
60 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 61 if ((card->info.type == QETH_CARD_TYPE_OSD ||
62 card->info.type == QETH_CARD_TYPE_OSM ||
63 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 64 !card->info.guestlan)
65 return 1;
66 return 0;
67 break;
68 case SIOCGMIIPHY:
69 mii_data = if_mii(rq);
70 mii_data->phy_id = 0;
71 break;
72 case SIOCGMIIREG:
73 mii_data = if_mii(rq);
74 if (mii_data->phy_id != 0)
75 rc = -EINVAL;
76 else
77 mii_data->val_out = qeth_mdio_read(dev,
78 mii_data->phy_id, mii_data->reg_num);
79 break;
c3ab96f3
FB		 80 case SIOC_QETH_QUERY_OAT:
81 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
82 break;
4a71df50
FB		 83 default:
84 rc = -EOPNOTSUPP;
85 }
86 if (rc)
847a50fd 87 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 88 return rc;
89}
90
91static int qeth_l2_verify_dev(struct net_device *dev)
92{
93 struct qeth_card *card;
94 unsigned long flags;
95 int rc = 0;
96
97 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
98 list_for_each_entry(card, &qeth_core_card_list.list, list) {
99 if (card->dev == dev) {
100 rc = QETH_REAL_CARD;
101 break;
102 }
103 }
104 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
105
106 return rc;
107}
108
109static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
110{
111 struct qeth_card *card;
112 struct net_device *ndev;
f06f6f32 113 __u16 temp_dev_no;
4a71df50 114 unsigned long flags;
f06f6f32 115 struct ccw_dev_id read_devid;
4a71df50
FB		 116
117 ndev = NULL;
118 memcpy(&temp_dev_no, read_dev_no, 2);
119 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
120 list_for_each_entry(card, &qeth_core_card_list.list, list) {
f06f6f32
CH		 121 ccw_device_get_id(CARD_RDEV(card), &read_devid);
122 if (read_devid.devno == temp_dev_no) {
4a71df50
FB		 123 ndev = card->dev;
124 break;
125 }
126 }
127 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
128 return ndev;
129}
130
efbbc1d5 131static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
4a71df50 132{
efbbc1d5 133 int rc;
4a71df50 134
efbbc1d5 135 if (retcode)
1aec42bc 136 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
efbbc1d5
EC		 137 switch (retcode) {
138 case IPA_RC_SUCCESS:
139 rc = 0;
140 break;
141 case IPA_RC_L2_UNSUPPORTED_CMD:
ffb95251 142 rc = -EOPNOTSUPP;
efbbc1d5
EC		 143 break;
144 case IPA_RC_L2_ADDR_TABLE_FULL:
145 rc = -ENOSPC;
146 break;
147 case IPA_RC_L2_DUP_MAC:
148 case IPA_RC_L2_DUP_LAYER3_MAC:
149 rc = -EEXIST;
150 break;
151 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
152 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
153 rc = -EPERM;
154 break;
155 case IPA_RC_L2_MAC_NOT_FOUND:
156 rc = -ENOENT;
157 break;
1aec42bc
TR		 158 case -ENOMEM:
159 rc = -ENOMEM;
160 break;
efbbc1d5
EC		 161 default:
162 rc = -EIO;
163 break;
4a71df50 164 }
efbbc1d5 165 return rc;
4a71df50
FB		 166}
167
168static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
169{
efbbc1d5 170 int rc;
4a71df50 171
efbbc1d5 172 QETH_CARD_TEXT(card, 2, "L2Sgmac");
754e0b8d 173 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC);
efbbc1d5
EC		 174 if (rc == -EEXIST)
175 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
176 mac, QETH_CARD_IFNAME(card));
177 else if (rc)
178 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n",
179 mac, QETH_CARD_IFNAME(card), rc);
180 return rc;
4a71df50
FB		 181}
182
183static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
184{
efbbc1d5
EC		 185 int rc;
186
847a50fd 187 QETH_CARD_TEXT(card, 2, "L2Dgmac");
754e0b8d 188 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC);
efbbc1d5
EC		 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
fe5c8028 196static inline u32 qeth_l2_mac_hash(const u8 *addr)
4a71df50 197{
fe5c8028
LD		 198 return get_unaligned((u32 *)(&addr[2]));
199}
4a71df50 200
fe5c8028
LD		 201static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
202{
fe5c8028 203 if (mac->is_uc) {
979d7929 204 return qeth_l2_send_setdelmac(card, mac->mac_addr,
754e0b8d 205 IPA_CMD_SETVMAC);
7db2266a 206 } else {
979d7929
JW		 207 return qeth_l2_send_setgroupmac(card, mac->mac_addr);
208 }
209}
210
211static int qeth_l2_remove_mac(struct qeth_card *card, struct qeth_mac *mac)
212{
213 if (mac->is_uc) {
214 return qeth_l2_send_setdelmac(card, mac->mac_addr,
215 IPA_CMD_DELVMAC);
216 } else {
217 return qeth_l2_send_delgroupmac(card, mac->mac_addr);
7db2266a 218 }
4a71df50
FB		 219}
220
c07cbf2e 221static void qeth_l2_del_all_macs(struct qeth_card *card)
4a71df50 222{
fe5c8028
LD		 223 struct qeth_mac *mac;
224 struct hlist_node *tmp;
225 int i;
4a71df50
FB		 226
227 spin_lock_bh(&card->mclock);
fe5c8028 228 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
fe5c8028
LD		 229 hash_del(&mac->hnode);
230 kfree(mac);
4a71df50
FB		 231 }
232 spin_unlock_bh(&card->mclock);
233}
234
ce73e10e
KDW		 235static inline int qeth_l2_get_cast_type(struct qeth_card *card,
236 struct sk_buff *skb)
4a71df50 237{
ce73e10e
KDW		 238 if (card->info.type == QETH_CARD_TYPE_OSN)
239 return RTN_UNSPEC;
240 if (is_broadcast_ether_addr(skb->data))
241 return RTN_BROADCAST;
242 if (is_multicast_ether_addr(skb->data))
243 return RTN_MULTICAST;
244 return RTN_UNSPEC;
4a71df50
FB		 245}
246
4d7def2a
TR		 247static inline void qeth_l2_hdr_csum(struct qeth_card *card,
248 struct qeth_hdr *hdr, struct sk_buff *skb)
249{
250 struct iphdr *iph = ip_hdr(skb);
251
252 /* tcph->check contains already the pseudo hdr checksum
253 * so just set the header flags
254 */
255 if (iph->protocol == IPPROTO_UDP)
256 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP;
257 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
258 QETH_HDR_EXT_CSUM_HDR_REQ;
259 iph->check = 0;
260 if (card->options.performance_stats)
261 card->perf_stats.tx_csum++;
262}
263
4a71df50 264static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
43934077 265 struct sk_buff *skb, int cast_type)
4a71df50 266{
683d718a 267 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
4a71df50
FB		 268
269 memset(hdr, 0, sizeof(struct qeth_hdr));
270 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
271
272 /* set byte byte 3 to casting flags */
273 if (cast_type == RTN_MULTICAST)
274 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
275 else if (cast_type == RTN_BROADCAST)
276 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
277 else
ce73e10e 278 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
4a71df50
FB		 279
280 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
281 /* VSWITCH relies on the VLAN
282 * information to be present in
283 * the QDIO header */
284 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
285 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
286 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
287 }
288}
289
290static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
291 struct qeth_reply *reply, unsigned long data)
292{
293 struct qeth_ipa_cmd *cmd;
294
847a50fd 295 QETH_CARD_TEXT(card, 2, "L2sdvcb");
4a71df50
FB		 296 cmd = (struct qeth_ipa_cmd *) data;
297 if (cmd->hdr.return_code) {
14cc21b6 298 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
4a71df50
FB		 299 "Continuing\n", cmd->data.setdelvlan.vlan_id,
300 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
847a50fd
CO		 301 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
302 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
4a71df50
FB		 303 }
304 return 0;
305}
306
307static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
308 enum qeth_ipa_cmds ipacmd)
309{
310 struct qeth_ipa_cmd *cmd;
311 struct qeth_cmd_buffer *iob;
312
847a50fd 313 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
4a71df50 314 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 315 if (!iob)
316 return -ENOMEM;
4a71df50
FB		 317 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
318 cmd->data.setdelvlan.vlan_id = i;
319 return qeth_send_ipa_cmd(card, iob,
320 qeth_l2_send_setdelvlan_cb, NULL);
321}
322
70919e23 323static void qeth_l2_process_vlans(struct qeth_card *card)
4a71df50
FB		 324{
325 struct qeth_vlan_vid *id;
847a50fd 326 QETH_CARD_TEXT(card, 3, "L2prcvln");
4a71df50
FB		 327 spin_lock_bh(&card->vlanlock);
328 list_for_each_entry(id, &card->vid_list, list) {
70919e23 329 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
4a71df50
FB		 330 }
331 spin_unlock_bh(&card->vlanlock);
332}
333
80d5c368
PM		 334static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
335 __be16 proto, u16 vid)
4a71df50 336{
509e2562 337 struct qeth_card *card = dev->ml_priv;
4a71df50 338 struct qeth_vlan_vid *id;
1aec42bc 339 int rc;
4a71df50 340
847a50fd 341 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
10651db7 342 if (!vid)
8e586137 343 return 0;
5113fec0 344 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 345 QETH_CARD_TEXT(card, 3, "aidOSM");
8e586137 346 return 0;
5113fec0 347 }
8e98ac48 348 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 349 QETH_CARD_TEXT(card, 3, "aidREC");
8e586137 350 return 0;
8e98ac48 351 }
4a71df50
FB		 352 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
353 if (id) {
354 id->vid = vid;
1aec42bc
TR		 355 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
356 if (rc) {
357 kfree(id);
358 return rc;
359 }
4a71df50
FB		 360 spin_lock_bh(&card->vlanlock);
361 list_add_tail(&id->list, &card->vid_list);
362 spin_unlock_bh(&card->vlanlock);
8e586137
JP		 363 } else {
364 return -ENOMEM;
4a71df50 365 }
8e586137 366 return 0;
4a71df50
FB		 367}
368
80d5c368
PM		 369static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
370 __be16 proto, u16 vid)
4a71df50
FB		 371{
372 struct qeth_vlan_vid *id, *tmpid = NULL;
509e2562 373 struct qeth_card *card = dev->ml_priv;
1aec42bc 374 int rc = 0;
4a71df50 375
847a50fd 376 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
5113fec0 377 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 378 QETH_CARD_TEXT(card, 3, "kidOSM");
8e586137 379 return 0;
5113fec0 380 }
8e98ac48 381 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 382 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 383 return 0;
8e98ac48 384 }
4a71df50
FB		 385 spin_lock_bh(&card->vlanlock);
386 list_for_each_entry(id, &card->vid_list, list) {
387 if (id->vid == vid) {
388 list_del(&id->list);
389 tmpid = id;
390 break;
391 }
392 }
393 spin_unlock_bh(&card->vlanlock);
394 if (tmpid) {
1aec42bc 395 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
4a71df50
FB		 396 kfree(tmpid);
397 }
fe5c8028 398 qeth_l2_set_rx_mode(card->dev);
1aec42bc 399 return rc;
4a71df50
FB		 400}
401
b2f4de8b 402static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
4a71df50 403{
d11ba0c4
PT		 404 QETH_DBF_TEXT(SETUP , 2, "stopcard");
405 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 406
407 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 408 if (card->read.state == CH_STATE_UP &&
409 card->write.state == CH_STATE_UP &&
410 (card->state == CARD_STATE_UP)) {
411 if (recovery_mode &&
412 card->info.type != QETH_CARD_TYPE_OSN) {
413 qeth_l2_stop(card->dev);
414 } else {
415 rtnl_lock();
416 dev_close(card->dev);
417 rtnl_unlock();
418 }
70919e23 419 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
4a71df50
FB		 420 card->state = CARD_STATE_SOFTSETUP;
421 }
422 if (card->state == CARD_STATE_SOFTSETUP) {
c07cbf2e 423 qeth_l2_del_all_macs(card);
4a71df50
FB		 424 qeth_clear_ipacmd_list(card);
425 card->state = CARD_STATE_HARDSETUP;
426 }
427 if (card->state == CARD_STATE_HARDSETUP) {
428 qeth_qdio_clear_card(card, 0);
429 qeth_clear_qdio_buffers(card);
430 qeth_clear_working_pool_list(card);
431 card->state = CARD_STATE_DOWN;
432 }
433 if (card->state == CARD_STATE_DOWN) {
434 qeth_clear_cmd_buffers(&card->read);
435 qeth_clear_cmd_buffers(&card->write);
436 }
4a71df50
FB		 437}
438
a1c3ed4c
FB		 439static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
440 int budget, int *done)
4a71df50 441{
a1c3ed4c 442 int work_done = 0;
4a71df50
FB		 443 struct sk_buff *skb;
444 struct qeth_hdr *hdr;
4a71df50
FB		 445 unsigned int len;
446
a1c3ed4c 447 *done = 0;
18af5c17 448 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 449 while (budget) {
450 skb = qeth_core_get_next_skb(card,
b3332930 451 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 452 &card->rx.b_element, &card->rx.e_offset, &hdr);
453 if (!skb) {
454 *done = 1;
455 break;
4a71df50 456 }
a1c3ed4c 457 skb->dev = card->dev;
4a71df50
FB		 458 switch (hdr->hdr.l2.id) {
459 case QETH_HEADER_TYPE_LAYER2:
460 skb->pkt_type = PACKET_HOST;
461 skb->protocol = eth_type_trans(skb, skb->dev);
4d7def2a
TR		 462 if ((card->dev->features & NETIF_F_RXCSUM)
463 && ((hdr->hdr.l2.flags[1] &
464 (QETH_HDR_EXT_CSUM_HDR_REQ |
465 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
466 (QETH_HDR_EXT_CSUM_HDR_REQ |
467 QETH_HDR_EXT_CSUM_TRANSP_REQ)))
468 skb->ip_summed = CHECKSUM_UNNECESSARY;
469 else
470 skb->ip_summed = CHECKSUM_NONE;
12883725
UB		 471 if (skb->protocol == htons(ETH_P_802_2))
472 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
4a71df50 473 len = skb->len;
9abfa8cb 474 napi_gro_receive(&card->napi, skb);
4a71df50
FB		 475 break;
476 case QETH_HEADER_TYPE_OSN:
2d488c2f
UB		 477 if (card->info.type == QETH_CARD_TYPE_OSN) {
478 skb_push(skb, sizeof(struct qeth_hdr));
479 skb_copy_to_linear_data(skb, hdr,
4a71df50 480 sizeof(struct qeth_hdr));
2d488c2f
UB		 481 len = skb->len;
482 card->osn_info.data_cb(skb);
483 break;
484 }
485 /* else unknown */
4a71df50
FB		 486 default:
487 dev_kfree_skb_any(skb);
847a50fd 488 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 489 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 490 continue;
491 }
a1c3ed4c
FB		 492 work_done++;
493 budget--;
4a71df50
FB		 494 card->stats.rx_packets++;
495 card->stats.rx_bytes += len;
496 }
a1c3ed4c
FB		 497 return work_done;
498}
499
500static int qeth_l2_poll(struct napi_struct *napi, int budget)
501{
502 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
503 int work_done = 0;
504 struct qeth_qdio_buffer *buffer;
505 int done;
506 int new_budget = budget;
507
508 if (card->options.performance_stats) {
509 card->perf_stats.inbound_cnt++;
510 card->perf_stats.inbound_start_time = qeth_get_micros();
511 }
512
513 while (1) {
514 if (!card->rx.b_count) {
515 card->rx.qdio_err = 0;
516 card->rx.b_count = qdio_get_next_buffers(
517 card->data.ccwdev, 0, &card->rx.b_index,
518 &card->rx.qdio_err);
519 if (card->rx.b_count <= 0) {
520 card->rx.b_count = 0;
521 break;
522 }
523 card->rx.b_element =
524 &card->qdio.in_q->bufs[card->rx.b_index]
525 .buffer->element[0];
526 card->rx.e_offset = 0;
527 }
528
529 while (card->rx.b_count) {
530 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
531 if (!(card->rx.qdio_err &&
532 qeth_check_qdio_errors(card, buffer->buffer,
533 card->rx.qdio_err, "qinerr")))
534 work_done += qeth_l2_process_inbound_buffer(
535 card, new_budget, &done);
536 else
537 done = 1;
538
539 if (done) {
540 if (card->options.performance_stats)
541 card->perf_stats.bufs_rec++;
542 qeth_put_buffer_pool_entry(card,
543 buffer->pool_entry);
544 qeth_queue_input_buffer(card, card->rx.b_index);
545 card->rx.b_count--;
546 if (card->rx.b_count) {
547 card->rx.b_index =
548 (card->rx.b_index + 1) %
549 QDIO_MAX_BUFFERS_PER_Q;
550 card->rx.b_element =
551 &card->qdio.in_q
552 ->bufs[card->rx.b_index]
553 .buffer->element[0];
554 card->rx.e_offset = 0;
555 }
556 }
557
558 if (work_done >= budget)
559 goto out;
560 else
561 new_budget = budget - work_done;
562 }
563 }
564
565 napi_complete(napi);
566 if (qdio_start_irq(card->data.ccwdev, 0))
567 napi_schedule(&card->napi);
568out:
569 if (card->options.performance_stats)
570 card->perf_stats.inbound_time += qeth_get_micros() -
571 card->perf_stats.inbound_start_time;
572 return work_done;
4a71df50
FB		 573}
574
575static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
efbbc1d5 576 enum qeth_ipa_cmds ipacmd)
4a71df50
FB		 577{
578 struct qeth_ipa_cmd *cmd;
579 struct qeth_cmd_buffer *iob;
580
847a50fd 581 QETH_CARD_TEXT(card, 2, "L2sdmac");
4a71df50 582 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 583 if (!iob)
584 return -ENOMEM;
4a71df50
FB		 585 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
586 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
587 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
754e0b8d
JW		 588 return qeth_setdel_makerc(card, qeth_send_ipa_cmd(card, iob,
589 NULL, NULL));
4a71df50
FB		 590}
591
efbbc1d5 592static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
4a71df50 593{
efbbc1d5 594 int rc;
4a71df50 595
efbbc1d5 596 QETH_CARD_TEXT(card, 2, "L2Setmac");
754e0b8d 597 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC);
efbbc1d5
EC		 598 if (rc == 0) {
599 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
600 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
601 dev_info(&card->gdev->dev,
602 "MAC address %pM successfully registered on device %s\n",
603 card->dev->dev_addr, card->dev->name);
604 } else {
4a71df50 605 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
efbbc1d5
EC		 606 switch (rc) {
607 case -EEXIST:
0666eb06 608 dev_warn(&card->gdev->dev,
efbbc1d5 609 "MAC address %pM already exists\n", mac);
0666eb06 610 break;
efbbc1d5 611 case -EPERM:
0666eb06 612 dev_warn(&card->gdev->dev,
efbbc1d5 613 "MAC address %pM is not authorized\n", mac);
0666eb06
UB		 614 break;
615 }
4a71df50 616 }
efbbc1d5 617 return rc;
4a71df50
FB		 618}
619
620static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
621{
efbbc1d5
EC		 622 int rc;
623
847a50fd 624 QETH_CARD_TEXT(card, 2, "L2Delmac");
4a71df50
FB		 625 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
626 return 0;
754e0b8d 627 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC);
efbbc1d5
EC		 628 if (rc == 0)
629 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
630 return rc;
4a71df50
FB		 631}
632
633static int qeth_l2_request_initial_mac(struct qeth_card *card)
634{
635 int rc = 0;
636 char vendor_pre[] = {0x02, 0x00, 0x00};
637
d11ba0c4
PT		 638 QETH_DBF_TEXT(SETUP, 2, "doL2init");
639 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
4a71df50 640
a134884a
SR		 641 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
642 rc = qeth_query_setadapterparms(card);
643 if (rc) {
644 QETH_DBF_MESSAGE(2, "could not query adapter "
645 "parameters on device %s: x%x\n",
646 CARD_BUS_ID(card), rc);
647 }
4a71df50
FB		 648 }
649
5113fec0
UB		 650 if (card->info.type == QETH_CARD_TYPE_IQD ||
651 card->info.type == QETH_CARD_TYPE_OSM ||
652 card->info.type == QETH_CARD_TYPE_OSX ||
653 card->info.guestlan) {
4a71df50
FB		 654 rc = qeth_setadpparms_change_macaddr(card);
655 if (rc) {
14cc21b6
FB		 656 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
657 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1aec42bc 658 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
4a71df50
FB		 659 return rc;
660 }
d11ba0c4 661 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
4a71df50 662 } else {
1833611d 663 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 664 memcpy(card->dev->dev_addr, vendor_pre, 3);
665 }
666 return 0;
667}
668
669static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
670{
671 struct sockaddr *addr = p;
509e2562 672 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 673 int rc = 0;
674
847a50fd 675 QETH_CARD_TEXT(card, 3, "setmac");
4a71df50
FB		 676
677 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
847a50fd 678 QETH_CARD_TEXT(card, 3, "setmcINV");
4a71df50
FB		 679 return -EOPNOTSUPP;
680 }
681
5113fec0
UB		 682 if (card->info.type == QETH_CARD_TYPE_OSN ||
683 card->info.type == QETH_CARD_TYPE_OSM ||
684 card->info.type == QETH_CARD_TYPE_OSX) {
847a50fd 685 QETH_CARD_TEXT(card, 3, "setmcTYP");
4a71df50
FB		 686 return -EOPNOTSUPP;
687 }
847a50fd 688 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
8e98ac48 689 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 690 QETH_CARD_TEXT(card, 3, "setmcREC");
8e98ac48
UB		 691 return -ERESTARTSYS;
692 }
4a71df50 693 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
efbbc1d5 694 if (!rc || (rc == -ENOENT))
4a71df50 695 rc = qeth_l2_send_setmac(card, addr->sa_data);
e0a8114c 696 return rc ? -EINVAL : 0;
4a71df50
FB		 697}
698
0db587b0
EC		 699static void qeth_promisc_to_bridge(struct qeth_card *card)
700{
701 struct net_device *dev = card->dev;
702 enum qeth_ipa_promisc_modes promisc_mode;
703 int role;
704 int rc;
705
706 QETH_CARD_TEXT(card, 3, "pmisc2br");
707
708 if (!card->options.sbp.reflect_promisc)
709 return;
710 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
711 : SET_PROMISC_MODE_OFF;
712 if (promisc_mode == card->info.promisc_mode)
713 return;
714
715 if (promisc_mode == SET_PROMISC_MODE_ON) {
716 if (card->options.sbp.reflect_promisc_primary)
717 role = QETH_SBP_ROLE_PRIMARY;
718 else
719 role = QETH_SBP_ROLE_SECONDARY;
720 } else
721 role = QETH_SBP_ROLE_NONE;
722
723 rc = qeth_bridgeport_setrole(card, role);
724 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
725 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
726 if (!rc) {
727 card->options.sbp.role = role;
728 card->info.promisc_mode = promisc_mode;
729 }
fe5c8028
LD		 730
731}
732/* New MAC address is added to the hash table and marked to be written on card
733 * only if there is not in the hash table storage already
734 *
735*/
736static void
737qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha, u8 is_uc)
738{
739 struct qeth_mac *mac;
740
741 hash_for_each_possible(card->mac_htable, mac, hnode,
742 qeth_l2_mac_hash(ha->addr)) {
743 if (is_uc == mac->is_uc &&
744 !memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
5f78e29c 745 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
fe5c8028
LD		 746 return;
747 }
748 }
749
750 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
751
752 if (!mac)
753 return;
754
755 memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
756 mac->is_uc = is_uc;
5f78e29c 757 mac->disp_flag = QETH_DISP_ADDR_ADD;
fe5c8028
LD		 758
759 hash_add(card->mac_htable, &mac->hnode,
760 qeth_l2_mac_hash(mac->mac_addr));
761
0db587b0
EC		 762}
763
fe5c8028 764static void qeth_l2_set_rx_mode(struct net_device *dev)
4a71df50 765{
509e2562 766 struct qeth_card *card = dev->ml_priv;
ccffad25 767 struct netdev_hw_addr *ha;
fe5c8028
LD		 768 struct qeth_mac *mac;
769 struct hlist_node *tmp;
770 int i;
771 int rc;
4a71df50
FB		 772
773 if (card->info.type == QETH_CARD_TYPE_OSN)
fe5c8028 774 return;
4a71df50 775
847a50fd 776 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 777 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
778 (card->state != CARD_STATE_UP))
779 return;
fe5c8028 780
4a71df50 781 spin_lock_bh(&card->mclock);
fe5c8028 782
22bedad3 783 netdev_for_each_mc_addr(ha, dev)
fe5c8028 784 qeth_l2_add_mac(card, ha, 0);
7db2266a 785
32e7bfc4 786 netdev_for_each_uc_addr(ha, dev)
fe5c8028
LD		 787 qeth_l2_add_mac(card, ha, 1);
788
789 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
5f78e29c 790 if (mac->disp_flag == QETH_DISP_ADDR_DELETE) {
979d7929 791 qeth_l2_remove_mac(card, mac);
fe5c8028
LD		 792 hash_del(&mac->hnode);
793 kfree(mac);
794
5f78e29c 795 } else if (mac->disp_flag == QETH_DISP_ADDR_ADD) {
fe5c8028
LD		 796 rc = qeth_l2_write_mac(card, mac);
797 if (rc) {
798 hash_del(&mac->hnode);
799 kfree(mac);
800 } else
5f78e29c 801 mac->disp_flag = QETH_DISP_ADDR_DELETE;
fe5c8028 802 } else
5f78e29c 803 mac->disp_flag = QETH_DISP_ADDR_DELETE;
fe5c8028 804 }
7db2266a 805
4a71df50 806 spin_unlock_bh(&card->mclock);
fe5c8028 807
0db587b0
EC		 808 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
809 qeth_setadp_promisc_mode(card);
810 else
811 qeth_promisc_to_bridge(card);
4a71df50
FB		 812}
813
814static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
815{
816 int rc;
817 struct qeth_hdr *hdr = NULL;
818 int elements = 0;
509e2562 819 struct qeth_card *card = dev->ml_priv;
4a71df50 820 struct sk_buff *new_skb = skb;
ce73e10e 821 int cast_type = qeth_l2_get_cast_type(card, skb);
290b8348 822 struct qeth_qdio_out_q *queue;
4a71df50 823 int tx_bytes = skb->len;
683d718a
FB		 824 int data_offset = -1;
825 int elements_needed = 0;
826 int hd_len = 0;
d52aec97 827 int nr_frags;
4a71df50 828
290b8348
SR		 829 if (card->qdio.do_prio_queueing || (cast_type &&
830 card->info.is_multicast_different))
831 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
832 qeth_get_ip_version(skb), cast_type)];
833 else
834 queue = card->qdio.out_qs[card->qdio.default_out_queue];
835
4a71df50
FB		 836 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
837 card->stats.tx_carrier_errors++;
838 goto tx_drop;
839 }
840
841 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
842 (skb->protocol == htons(ETH_P_IPV6)))
843 goto tx_drop;
844
845 if (card->options.performance_stats) {
846 card->perf_stats.outbound_cnt++;
847 card->perf_stats.outbound_start_time = qeth_get_micros();
848 }
849 netif_stop_queue(dev);
850
d52aec97
EC		 851 /* fix hardware limitation: as long as we do not have sbal
852 * chaining we can not send long frag lists
853 */
854 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
855 !qeth_get_elements_no(card, new_skb, 0)) {
6059c905
EC		 856 int lin_rc = skb_linearize(new_skb);
857
858 if (card->options.performance_stats) {
859 if (lin_rc)
860 card->perf_stats.tx_linfail++;
861 else
862 card->perf_stats.tx_lin++;
863 }
864 if (lin_rc)
d52aec97 865 goto tx_drop;
d52aec97
EC		 866 }
867
4a71df50
FB		 868 if (card->info.type == QETH_CARD_TYPE_OSN)
869 hdr = (struct qeth_hdr *)skb->data;
870 else {
64ef8957 871 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 872 new_skb = skb;
873 data_offset = ETH_HLEN;
874 hd_len = ETH_HLEN;
875 hdr = kmem_cache_alloc(qeth_core_header_cache,
876 GFP_ATOMIC);
877 if (!hdr)
878 goto tx_drop;
879 elements_needed++;
880 skb_reset_mac_header(new_skb);
43934077 881 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
683d718a
FB		 882 hdr->hdr.l2.pkt_length = new_skb->len;
883 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
884 skb_mac_header(new_skb), ETH_HLEN);
885 } else {
886 /* create a clone with writeable headroom */
887 new_skb = skb_realloc_headroom(skb,
888 sizeof(struct qeth_hdr));
889 if (!new_skb)
890 goto tx_drop;
891 hdr = (struct qeth_hdr *)skb_push(new_skb,
f90b744e 892 sizeof(struct qeth_hdr));
683d718a 893 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
43934077 894 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
4d7def2a
TR		 895 if (new_skb->ip_summed == CHECKSUM_PARTIAL)
896 qeth_l2_hdr_csum(card, hdr, new_skb);
683d718a 897 }
4a71df50
FB		 898 }
899
065cc782 900 elements = qeth_get_elements_no(card, new_skb, elements_needed);
64ef8957
FB		 901 if (!elements) {
902 if (data_offset >= 0)
903 kmem_cache_free(qeth_core_header_cache, hdr);
904 goto tx_drop;
f61a0d05 905 }
4a71df50 906
51aa165c 907 if (card->info.type != QETH_CARD_TYPE_IQD) {
d4ae1f5e 908 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
51aa165c
FB		 909 sizeof(struct qeth_hdr_layer2)))
910 goto tx_drop;
4a71df50 911 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 912 elements);
51aa165c 913 } else
4a71df50 914 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 915 elements, data_offset, hd_len);
4a71df50
FB		 916 if (!rc) {
917 card->stats.tx_packets++;
918 card->stats.tx_bytes += tx_bytes;
d52aec97
EC		 919 if (card->options.performance_stats) {
920 nr_frags = skb_shinfo(new_skb)->nr_frags;
921 if (nr_frags) {
922 card->perf_stats.sg_skbs_sent++;
923 /* nr_frags + skb->data */
924 card->perf_stats.sg_frags_sent += nr_frags + 1;
925 }
926 }
4a71df50
FB		 927 if (new_skb != skb)
928 dev_kfree_skb_any(skb);
ec634fe3 929 rc = NETDEV_TX_OK;
4a71df50 930 } else {
683d718a
FB		 931 if (data_offset >= 0)
932 kmem_cache_free(qeth_core_header_cache, hdr);
933
4a71df50
FB		 934 if (rc == -EBUSY) {
935 if (new_skb != skb)
936 dev_kfree_skb_any(new_skb);
937 return NETDEV_TX_BUSY;
938 } else
939 goto tx_drop;
940 }
941
942 netif_wake_queue(dev);
943 if (card->options.performance_stats)
944 card->perf_stats.outbound_time += qeth_get_micros() -
945 card->perf_stats.outbound_start_time;
946 return rc;
947
948tx_drop:
949 card->stats.tx_dropped++;
950 card->stats.tx_errors++;
951 if ((new_skb != skb) && new_skb)
952 dev_kfree_skb_any(new_skb);
953 dev_kfree_skb_any(skb);
d0ec0f54 954 netif_wake_queue(dev);
4a71df50
FB		 955 return NETDEV_TX_OK;
956}
957
39423440 958static int __qeth_l2_open(struct net_device *dev)
4a71df50 959{
509e2562 960 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 961 int rc = 0;
4a71df50 962
847a50fd 963 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 964 if (card->state == CARD_STATE_UP)
965 return rc;
4a71df50
FB		 966 if (card->state != CARD_STATE_SOFTSETUP)
967 return -ENODEV;
968
969 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
970 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
847a50fd 971 QETH_CARD_TEXT(card, 4, "nomacadr");
4a71df50
FB		 972 return -EPERM;
973 }
974 card->data.state = CH_STATE_UP;
975 card->state = CARD_STATE_UP;
4a71df50
FB		 976 netif_start_queue(dev);
977
a1c3ed4c
FB		 978 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
979 napi_enable(&card->napi);
980 napi_schedule(&card->napi);
981 } else
982 rc = -EIO;
983 return rc;
4a71df50
FB		 984}
985
39423440
UB		 986static int qeth_l2_open(struct net_device *dev)
987{
988 struct qeth_card *card = dev->ml_priv;
989
990 QETH_CARD_TEXT(card, 5, "qethope_");
991 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
992 QETH_CARD_TEXT(card, 3, "openREC");
993 return -ERESTARTSYS;
994 }
995 return __qeth_l2_open(dev);
996}
997
4a71df50
FB		 998static int qeth_l2_stop(struct net_device *dev)
999{
509e2562 1000 struct qeth_card *card = dev->ml_priv;
4a71df50 1001
847a50fd 1002 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 1003 netif_tx_disable(dev);
a1c3ed4c 1004 if (card->state == CARD_STATE_UP) {
4a71df50 1005 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 1006 napi_disable(&card->napi);
1007 }
4a71df50
FB		 1008 return 0;
1009}
1010
1011static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
1012{
1013 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1014
b4d72c08 1015 qeth_l2_create_device_attributes(&gdev->dev);
4a71df50 1016 INIT_LIST_HEAD(&card->vid_list);
fe5c8028 1017 hash_init(card->mac_htable);
4a71df50 1018 card->options.layer2 = 1;
1da74b1c 1019 card->info.hwtrap = 0;
4a71df50
FB		 1020 return 0;
1021}
1022
1023static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
1024{
1025 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1026
b4d72c08 1027 qeth_l2_remove_device_attributes(&cgdev->dev);
f2148565 1028 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 1029 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1030
70919e23 1031 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 1032 qeth_l2_set_offline(cgdev);
4a71df50
FB		 1033
1034 if (card->dev) {
7831b4ff 1035 netif_napi_del(&card->napi);
4a71df50
FB		 1036 unregister_netdev(card->dev);
1037 card->dev = NULL;
1038 }
4a71df50
FB		 1039 return;
1040}
1041
0fc0b732 1042static const struct ethtool_ops qeth_l2_ethtool_ops = {
4a71df50 1043 .get_link = ethtool_op_get_link,
4a71df50
FB		 1044 .get_strings = qeth_core_get_strings,
1045 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1046 .get_sset_count = qeth_core_get_sset_count,
4a71df50 1047 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 1048 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 1049};
1050
0fc0b732 1051static const struct ethtool_ops qeth_l2_osn_ops = {
4a71df50
FB		 1052 .get_strings = qeth_core_get_strings,
1053 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1054 .get_sset_count = qeth_core_get_sset_count,
4a71df50
FB		 1055 .get_drvinfo = qeth_core_get_drvinfo,
1056};
1057
3d58cefd 1058static const struct net_device_ops qeth_l2_netdev_ops = {
8403b13c
FB		 1059 .ndo_open = qeth_l2_open,
1060 .ndo_stop = qeth_l2_stop,
1061 .ndo_get_stats = qeth_get_stats,
1062 .ndo_start_xmit = qeth_l2_hard_start_xmit,
1063 .ndo_validate_addr = eth_validate_addr,
fe5c8028 1064 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
8403b13c
FB		 1065 .ndo_do_ioctl = qeth_l2_do_ioctl,
1066 .ndo_set_mac_address = qeth_l2_set_mac_address,
1067 .ndo_change_mtu = qeth_change_mtu,
1068 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
1069 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
1070 .ndo_tx_timeout = qeth_tx_timeout,
8f43fb00
TR		 1071 .ndo_fix_features = qeth_fix_features,
1072 .ndo_set_features = qeth_set_features
8403b13c
FB		 1073};
1074
4a71df50
FB		 1075static int qeth_l2_setup_netdev(struct qeth_card *card)
1076{
1077 switch (card->info.type) {
4a71df50 1078 case QETH_CARD_TYPE_IQD:
c835a677
TG		 1079 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
1080 ether_setup);
4a71df50
FB		 1081 break;
1082 case QETH_CARD_TYPE_OSN:
c835a677
TG		 1083 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
1084 ether_setup);
4a71df50
FB		 1085 card->dev->flags |= IFF_NOARP;
1086 break;
1087 default:
1088 card->dev = alloc_etherdev(0);
1089 }
1090
1091 if (!card->dev)
1092 return -ENODEV;
1093
509e2562 1094 card->dev->ml_priv = card;
4a71df50 1095 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 1096 card->dev->mtu = card->info.initial_mtu;
46b3ef4c
JW		 1097 card->dev->min_mtu = 64;
1098 card->dev->max_mtu = ETH_MAX_MTU;
8403b13c 1099 card->dev->netdev_ops = &qeth_l2_netdev_ops;
7ad24ea4
WK		 1100 card->dev->ethtool_ops =
1101 (card->info.type != QETH_CARD_TYPE_OSN) ?
1102 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
f646968f 1103 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4d7def2a 1104 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
8f43fb00 1105 card->dev->hw_features = NETIF_F_SG;
9bdc4411 1106 card->dev->vlan_features = NETIF_F_SG;
8f43fb00 1107 /* OSA 3S and earlier has no RX/TX support */
9bdc4411 1108 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) {
8f43fb00 1109 card->dev->hw_features |= NETIF_F_IP_CSUM;
9bdc4411
HW		 1110 card->dev->vlan_features |= NETIF_F_IP_CSUM;
1111 }
1112 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
8f43fb00 1113 card->dev->hw_features |= NETIF_F_RXCSUM;
9bdc4411
HW		 1114 card->dev->vlan_features |= NETIF_F_RXCSUM;
1115 }
4d7def2a 1116 }
4a71df50
FB		 1117 card->info.broadcast_capable = 1;
1118 qeth_l2_request_initial_mac(card);
d52aec97
EC		 1119 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
1120 PAGE_SIZE;
4a71df50 1121 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 1122 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
e5ebe632 1123 netif_carrier_off(card->dev);
4a71df50
FB		 1124 return register_netdev(card->dev);
1125}
1126
4d7def2a
TR		 1127static int qeth_l2_start_ipassists(struct qeth_card *card)
1128{
1129 /* configure isolation level */
1130 if (qeth_set_access_ctrl_online(card, 0))
1131 return -ENODEV;
4d7def2a
TR		 1132 return 0;
1133}
1134
4a71df50
FB		 1135static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1136{
1137 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1138 int rc = 0;
1139 enum qeth_card_states recover_flag;
1140
9dc48ccc 1141 mutex_lock(&card->discipline_mutex);
c4949f07 1142 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1143 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1144 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 1145
4a71df50 1146 recover_flag = card->state;
4a71df50
FB		 1147 rc = qeth_core_hardsetup_card(card);
1148 if (rc) {
1aec42bc 1149 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
aa909224 1150 rc = -ENODEV;
4a71df50
FB		 1151 goto out_remove;
1152 }
c044dc21
EC		 1153 qeth_bridgeport_query_support(card);
1154 if (card->options.sbp.supported_funcs)
1155 dev_info(&card->gdev->dev,
9c23f4da 1156 "The device represents a Bridge Capable Port\n");
395672e0 1157 qeth_trace_features(card);
4a71df50 1158
aa909224
UB		 1159 if (!card->dev && qeth_l2_setup_netdev(card)) {
1160 rc = -ENODEV;
4a71df50 1161 goto out_remove;
aa909224 1162 }
4a71df50
FB		 1163
1164 if (card->info.type != QETH_CARD_TYPE_OSN)
1165 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1166
1da74b1c
FB		 1167 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1168 if (card->info.hwtrap &&
1169 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1170 card->info.hwtrap = 0;
1171 } else
1172 card->info.hwtrap = 0;
1173
b4d72c08
EC		 1174 qeth_l2_setup_bridgeport_attrs(card);
1175
4a71df50 1176 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 1177 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 1178 qeth_print_status_message(card);
1179
1180 /* softsetup */
d11ba0c4 1181 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 1182
1183 rc = qeth_send_startlan(card);
1184 if (rc) {
d11ba0c4 1185 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 1186 if (rc == 0xe080) {
74eacdb9
FB		 1187 dev_warn(&card->gdev->dev,
1188 "The LAN is offline\n");
4a71df50 1189 card->lan_online = 0;
2b6203bb 1190 goto contin;
4a71df50 1191 }
aa909224 1192 rc = -ENODEV;
f2148565 1193 goto out_remove;
4a71df50
FB		 1194 } else
1195 card->lan_online = 1;
1196
2b6203bb 1197contin:
5113fec0 1198 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
0f54761d 1199 (card->info.type == QETH_CARD_TYPE_OSX)) {
8f43fb00
TR		 1200 rc = qeth_l2_start_ipassists(card);
1201 if (rc)
0f54761d 1202 goto out_remove;
0f54761d 1203 }
5113fec0
UB		 1204
1205 if (card->info.type != QETH_CARD_TYPE_OSN &&
1206 card->info.type != QETH_CARD_TYPE_OSM)
70919e23 1207 qeth_l2_process_vlans(card);
4a71df50
FB		 1208
1209 netif_tx_disable(card->dev);
1210
1211 rc = qeth_init_qdio_queues(card);
1212 if (rc) {
d11ba0c4 1213 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 1214 rc = -ENODEV;
4a71df50
FB		 1215 goto out_remove;
1216 }
1217 card->state = CARD_STATE_SOFTSETUP;
2b6203bb
UB		 1218 if (card->lan_online)
1219 netif_carrier_on(card->dev);
1220 else
1221 netif_carrier_off(card->dev);
4a71df50
FB		 1222
1223 qeth_set_allowed_threads(card, 0xffffffff, 0);
1224 if (recover_flag == CARD_STATE_RECOVER) {
1225 if (recovery_mode &&
1226 card->info.type != QETH_CARD_TYPE_OSN) {
39423440 1227 __qeth_l2_open(card->dev);
4a71df50
FB		 1228 } else {
1229 rtnl_lock();
1230 dev_open(card->dev);
1231 rtnl_unlock();
1232 }
1233 /* this also sets saved unicast addresses */
fe5c8028 1234 qeth_l2_set_rx_mode(card->dev);
e830baa9
HW		 1235 rtnl_lock();
1236 qeth_recover_features(card->dev);
1237 rtnl_unlock();
4a71df50
FB		 1238 }
1239 /* let user_space know that device is online */
1240 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1241 mutex_unlock(&card->conf_mutex);
9dc48ccc 1242 mutex_unlock(&card->discipline_mutex);
4a71df50 1243 return 0;
aa909224 1244
4a71df50 1245out_remove:
4a71df50
FB		 1246 qeth_l2_stop_card(card, 0);
1247 ccw_device_set_offline(CARD_DDEV(card));
1248 ccw_device_set_offline(CARD_WDEV(card));
1249 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 1250 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1251 if (recover_flag == CARD_STATE_RECOVER)
1252 card->state = CARD_STATE_RECOVER;
1253 else
1254 card->state = CARD_STATE_DOWN;
c4949f07 1255 mutex_unlock(&card->conf_mutex);
9dc48ccc 1256 mutex_unlock(&card->discipline_mutex);
aa909224 1257 return rc;
4a71df50
FB		 1258}
1259
1260static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1261{
1262 return __qeth_l2_set_online(gdev, 0);
1263}
1264
1265static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1266 int recovery_mode)
1267{
1268 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1269 int rc = 0, rc2 = 0, rc3 = 0;
1270 enum qeth_card_states recover_flag;
1271
9dc48ccc 1272 mutex_lock(&card->discipline_mutex);
c4949f07 1273 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1274 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1275 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 1276
1277 if (card->dev && netif_carrier_ok(card->dev))
1278 netif_carrier_off(card->dev);
1279 recover_flag = card->state;
1da74b1c
FB		 1280 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1281 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1282 card->info.hwtrap = 1;
1283 }
0f5623c9 1284 qeth_l2_stop_card(card, recovery_mode);
4a71df50
FB		 1285 rc = ccw_device_set_offline(CARD_DDEV(card));
1286 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1287 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1288 if (!rc)
1289 rc = (rc2) ? rc2 : rc3;
1290 if (rc)
d11ba0c4 1291 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 1292 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1293 if (recover_flag == CARD_STATE_UP)
1294 card->state = CARD_STATE_RECOVER;
1295 /* let user_space know that device is offline */
1296 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1297 mutex_unlock(&card->conf_mutex);
9dc48ccc 1298 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 1299 return 0;
1300}
1301
1302static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1303{
1304 return __qeth_l2_set_offline(cgdev, 0);
1305}
1306
1307static int qeth_l2_recover(void *ptr)
1308{
1309 struct qeth_card *card;
1310 int rc = 0;
1311
1312 card = (struct qeth_card *) ptr;
847a50fd 1313 QETH_CARD_TEXT(card, 2, "recover1");
4a71df50
FB		 1314 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1315 return 0;
847a50fd 1316 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 1317 dev_warn(&card->gdev->dev,
1318 "A recovery process has been started for the device\n");
65d8013c 1319 qeth_set_recovery_task(card);
4a71df50
FB		 1320 __qeth_l2_set_offline(card->gdev, 1);
1321 rc = __qeth_l2_set_online(card->gdev, 1);
4a71df50 1322 if (!rc)
74eacdb9
FB		 1323 dev_info(&card->gdev->dev,
1324 "Device successfully recovered!\n");
28a7e4c9 1325 else {
0f54761d
SR		 1326 qeth_close_dev(card);
1327 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 1328 "failed to recover an error on the device\n");
28a7e4c9 1329 }
65d8013c 1330 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 1331 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1332 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 1333 return 0;
1334}
1335
1336static int __init qeth_l2_init(void)
1337{
74eacdb9 1338 pr_info("register layer 2 discipline\n");
4a71df50
FB		 1339 return 0;
1340}
1341
1342static void __exit qeth_l2_exit(void)
1343{
74eacdb9 1344 pr_info("unregister layer 2 discipline\n");
4a71df50
FB		 1345}
1346
1347static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1348{
1349 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 1350 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 1351 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1352 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 1353 qeth_qdio_clear_card(card, 0);
1354 qeth_clear_qdio_buffers(card);
22ae2790 1355 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1356}
1357
bbcfcdc8
FB		 1358static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1359{
1360 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1361
1362 if (card->dev)
1363 netif_device_detach(card->dev);
1364 qeth_set_allowed_threads(card, 0, 1);
1365 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1366 if (gdev->state == CCWGROUP_OFFLINE)
1367 return 0;
1368 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 1369 if (card->info.hwtrap)
1370 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 1371 __qeth_l2_set_offline(card->gdev, 1);
1372 } else
1373 __qeth_l2_set_offline(card->gdev, 0);
1374 return 0;
1375}
1376
1377static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1378{
1379 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1380 int rc = 0;
1381
1382 if (gdev->state == CCWGROUP_OFFLINE)
1383 goto out;
1384
1385 if (card->state == CARD_STATE_RECOVER) {
1386 rc = __qeth_l2_set_online(card->gdev, 1);
1387 if (rc) {
869da90b
UB		 1388 rtnl_lock();
1389 dev_close(card->dev);
1390 rtnl_unlock();
bbcfcdc8
FB		 1391 }
1392 } else
1393 rc = __qeth_l2_set_online(card->gdev, 0);
1394out:
1395 qeth_set_allowed_threads(card, 0xffffffff, 0);
1396 if (card->dev)
1397 netif_device_attach(card->dev);
1398 if (rc)
1399 dev_warn(&card->gdev->dev, "The qeth device driver "
1400 "failed to recover an error on the device\n");
1401 return rc;
1402}
1403
c044dc21
EC		 1404/* Returns zero if the command is successfully "consumed" */
1405static int qeth_l2_control_event(struct qeth_card *card,
1406 struct qeth_ipa_cmd *cmd)
1407{
1408 switch (cmd->hdr.command) {
9c23f4da
EC		 1409 case IPA_CMD_SETBRIDGEPORT_OSA:
1410 case IPA_CMD_SETBRIDGEPORT_IQD:
c044dc21
EC		 1411 if (cmd->data.sbp.hdr.command_code ==
1412 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1413 qeth_bridge_state_change(card, cmd);
1414 return 0;
1415 } else
1416 return 1;
1417 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1418 qeth_bridge_host_event(card, cmd);
1419 return 0;
1420 default:
1421 return 1;
1422 }
1423}
1424
c041f2d4
SO		 1425struct qeth_discipline qeth_l2_discipline = {
1426 .start_poll = qeth_qdio_start_poll,
1427 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1428 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1429 .recover = qeth_l2_recover,
1430 .setup = qeth_l2_probe_device,
4a71df50
FB		 1431 .remove = qeth_l2_remove_device,
1432 .set_online = qeth_l2_set_online,
1433 .set_offline = qeth_l2_set_offline,
1434 .shutdown = qeth_l2_shutdown,
bbcfcdc8
FB		 1435 .freeze = qeth_l2_pm_suspend,
1436 .thaw = qeth_l2_pm_resume,
1437 .restore = qeth_l2_pm_resume,
c044dc21 1438 .control_event_handler = qeth_l2_control_event,
4a71df50 1439};
c041f2d4 1440EXPORT_SYMBOL_GPL(qeth_l2_discipline);
4a71df50
FB		 1441
1442static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1443 struct qeth_cmd_buffer *iob)
1444{
1445 unsigned long flags;
1446 int rc = 0;
1447
847a50fd 1448 QETH_CARD_TEXT(card, 5, "osndctrd");
4a71df50
FB		 1449
1450 wait_event(card->wait_q,
1451 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1452 qeth_prepare_control_data(card, len, iob);
847a50fd 1453 QETH_CARD_TEXT(card, 6, "osnoirqp");
4a71df50
FB		 1454 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1455 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1456 (addr_t) iob, 0, 0);
1457 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1458 if (rc) {
14cc21b6 1459 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4a71df50 1460 "ccw_device_start rc = %i\n", rc);
847a50fd 1461 QETH_CARD_TEXT_(card, 2, " err%d", rc);
4a71df50
FB		 1462 qeth_release_buffer(iob->channel, iob);
1463 atomic_set(&card->write.irq_pending, 0);
1464 wake_up(&card->wait_q);
1465 }
1466 return rc;
1467}
1468
1469static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1470 struct qeth_cmd_buffer *iob, int data_len)
1471{
1472 u16 s1, s2;
1473
847a50fd 1474 QETH_CARD_TEXT(card, 4, "osndipa");
4a71df50
FB		 1475
1476 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1477 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1478 s2 = (u16)data_len;
1479 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1480 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1481 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1482 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1483 return qeth_osn_send_control_data(card, s1, iob);
1484}
1485
1486int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1487{
1488 struct qeth_cmd_buffer *iob;
1489 struct qeth_card *card;
1490 int rc;
1491
4a71df50
FB		 1492 if (!dev)
1493 return -ENODEV;
509e2562 1494 card = dev->ml_priv;
4a71df50
FB		 1495 if (!card)
1496 return -ENODEV;
847a50fd 1497 QETH_CARD_TEXT(card, 2, "osnsdmc");
c3521254 1498 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 1499 return -ENODEV;
1500 iob = qeth_wait_for_buffer(&card->write);
1501 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1502 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1503 return rc;
1504}
1505EXPORT_SYMBOL(qeth_osn_assist);
1506
1507int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1508 int (*assist_cb)(struct net_device *, void *),
1509 int (*data_cb)(struct sk_buff *))
1510{
1511 struct qeth_card *card;
1512
4a71df50
FB		 1513 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1514 if (*dev == NULL)
1515 return -ENODEV;
509e2562 1516 card = (*dev)->ml_priv;
4a71df50
FB		 1517 if (!card)
1518 return -ENODEV;
847a50fd 1519 QETH_CARD_TEXT(card, 2, "osnreg");
4a71df50
FB		 1520 if ((assist_cb == NULL) || (data_cb == NULL))
1521 return -EINVAL;
1522 card->osn_info.assist_cb = assist_cb;
1523 card->osn_info.data_cb = data_cb;
1524 return 0;
1525}
1526EXPORT_SYMBOL(qeth_osn_register);
1527
1528void qeth_osn_deregister(struct net_device *dev)
1529{
1530 struct qeth_card *card;
1531
4a71df50
FB		 1532 if (!dev)
1533 return;
509e2562 1534 card = dev->ml_priv;
4a71df50
FB		 1535 if (!card)
1536 return;
847a50fd 1537 QETH_CARD_TEXT(card, 2, "osndereg");
4a71df50
FB		 1538 card->osn_info.assist_cb = NULL;
1539 card->osn_info.data_cb = NULL;
1540 return;
1541}
1542EXPORT_SYMBOL(qeth_osn_deregister);
1543
b4d72c08
EC		 1544/* SETBRIDGEPORT support, async notifications */
1545
9f48b9db
EC		 1546enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1547
1548/**
1549 * qeth_bridge_emit_host_event() - bridgeport address change notification
1550 * @card: qeth_card structure pointer, for udev events.
1551 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1552 * and reset token and addr_lnid are unused and may be NULL.
1553 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1554 * object, 0 - addition of an object.
1555 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1556 * @token: "network token" structure identifying physical address of the port.
1557 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1558 *
1559 * This function is called when registrations and deregistrations are
1560 * reported by the hardware, and also when notifications are enabled -
1561 * for all currently registered addresses.
1562 */
1563static void qeth_bridge_emit_host_event(struct qeth_card *card,
1564 enum qeth_an_event_type evtype,
1565 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1566{
1567 char str[7][32];
1568 char *env[8];
1569 int i = 0;
1570
1571 switch (evtype) {
1572 case anev_reg_unreg:
1573 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1574 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1575 ? "deregister" : "register");
1576 env[i] = str[i]; i++;
1577 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1578 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1579 addr_lnid->lnid);
1580 env[i] = str[i]; i++;
1581 }
1582 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
9846e70b 1583 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
4d7def2a 1584 addr_lnid->mac);
9f48b9db
EC		 1585 env[i] = str[i]; i++;
1586 }
1587 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1588 token->cssid, token->ssid, token->devnum);
1589 env[i] = str[i]; i++;
1590 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1591 env[i] = str[i]; i++;
1592 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1593 token->chpid);
1594 env[i] = str[i]; i++;
1595 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1596 env[i] = str[i]; i++;
1597 break;
1598 case anev_abort:
1599 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1600 env[i] = str[i]; i++;
1601 break;
1602 case anev_reset:
1603 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1604 env[i] = str[i]; i++;
1605 break;
1606 }
1607 env[i] = NULL;
1608 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1609}
1610
b4d72c08
EC		 1611struct qeth_bridge_state_data {
1612 struct work_struct worker;
1613 struct qeth_card *card;
1614 struct qeth_sbp_state_change qports;
1615};
1616
1617static void qeth_bridge_state_change_worker(struct work_struct *work)
1618{
1619 struct qeth_bridge_state_data *data =
1620 container_of(work, struct qeth_bridge_state_data, worker);
1621 /* We are only interested in the first entry - local port */
1622 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1623 char env_locrem[32];
1624 char env_role[32];
1625 char env_state[32];
1626 char *env[] = {
1627 env_locrem,
1628 env_role,
1629 env_state,
1630 NULL
1631 };
1632
1633 /* Role should not change by itself, but if it did, */
1634 /* information from the hardware is authoritative. */
1635 mutex_lock(&data->card->conf_mutex);
1636 data->card->options.sbp.role = entry->role;
1637 mutex_unlock(&data->card->conf_mutex);
1638
1639 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1640 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1641 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1642 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1643 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1644 "<INVALID>");
1645 snprintf(env_state, sizeof(env_state), "STATE=%s",
1646 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1647 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1648 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1649 "<INVALID>");
1650 kobject_uevent_env(&data->card->gdev->dev.kobj,
1651 KOBJ_CHANGE, env);
1652 kfree(data);
1653}
1654
c044dc21
EC		 1655static void qeth_bridge_state_change(struct qeth_card *card,
1656 struct qeth_ipa_cmd *cmd)
b4d72c08
EC		 1657{
1658 struct qeth_sbp_state_change *qports =
1659 &cmd->data.sbp.data.state_change;
1660 struct qeth_bridge_state_data *data;
1661 int extrasize;
1662
1663 QETH_CARD_TEXT(card, 2, "brstchng");
1664 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
8a593148 1665 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
b4d72c08
EC		 1666 return;
1667 }
1668 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1669 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1670 GFP_ATOMIC);
1671 if (!data) {
1672 QETH_CARD_TEXT(card, 2, "BPSalloc");
1673 return;
1674 }
1675 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1676 data->card = card;
1677 memcpy(&data->qports, qports,
1678 sizeof(struct qeth_sbp_state_change) + extrasize);
1679 queue_work(qeth_wq, &data->worker);
1680}
b4d72c08 1681
9f48b9db
EC		 1682struct qeth_bridge_host_data {
1683 struct work_struct worker;
1684 struct qeth_card *card;
1685 struct qeth_ipacmd_addr_change hostevs;
1686};
1687
1688static void qeth_bridge_host_event_worker(struct work_struct *work)
1689{
1690 struct qeth_bridge_host_data *data =
1691 container_of(work, struct qeth_bridge_host_data, worker);
1692 int i;
1693
1694 if (data->hostevs.lost_event_mask) {
1695 dev_info(&data->card->gdev->dev,
9c23f4da 1696"Address notification from the Bridge Port stopped %s (%s)\n",
9f48b9db
EC		 1697 data->card->dev->name,
1698 (data->hostevs.lost_event_mask == 0x01)
1699 ? "Overflow"
1700 : (data->hostevs.lost_event_mask == 0x02)
1701 ? "Bridge port state change"
1702 : "Unknown reason");
1703 mutex_lock(&data->card->conf_mutex);
1704 data->card->options.sbp.hostnotification = 0;
1705 mutex_unlock(&data->card->conf_mutex);
1706 qeth_bridge_emit_host_event(data->card, anev_abort,
1707 0, NULL, NULL);
1708 } else
1709 for (i = 0; i < data->hostevs.num_entries; i++) {
1710 struct qeth_ipacmd_addr_change_entry *entry =
1711 &data->hostevs.entry[i];
1712 qeth_bridge_emit_host_event(data->card,
1713 anev_reg_unreg,
1714 entry->change_code,
1715 &entry->token, &entry->addr_lnid);
1716 }
1717 kfree(data);
1718}
1719
c044dc21
EC		 1720static void qeth_bridge_host_event(struct qeth_card *card,
1721 struct qeth_ipa_cmd *cmd)
9f48b9db
EC		 1722{
1723 struct qeth_ipacmd_addr_change *hostevs =
1724 &cmd->data.addrchange;
1725 struct qeth_bridge_host_data *data;
1726 int extrasize;
1727
1728 QETH_CARD_TEXT(card, 2, "brhostev");
1729 if (cmd->hdr.return_code != 0x0000) {
1730 if (cmd->hdr.return_code == 0x0010) {
1731 if (hostevs->lost_event_mask == 0x00)
1732 hostevs->lost_event_mask = 0xff;
1733 } else {
1734 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1735 cmd->hdr.return_code);
1736 return;
1737 }
1738 }
1739 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1740 hostevs->num_entries;
1741 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1742 GFP_ATOMIC);
1743 if (!data) {
1744 QETH_CARD_TEXT(card, 2, "BPHalloc");
1745 return;
1746 }
1747 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1748 data->card = card;
1749 memcpy(&data->hostevs, hostevs,
1750 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1751 queue_work(qeth_wq, &data->worker);
1752}
9f48b9db 1753
b4d72c08
EC		 1754/* SETBRIDGEPORT support; sending commands */
1755
1756struct _qeth_sbp_cbctl {
1757 u16 ipa_rc;
1758 u16 cmd_rc;
1759 union {
1760 u32 supported;
1761 struct {
1762 enum qeth_sbp_roles *role;
1763 enum qeth_sbp_states *state;
1764 } qports;
1765 } data;
1766};
1767
1768/**
1769 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1770 * @card: qeth_card structure pointer, for debug messages.
1771 * @cbctl: state structure with hardware return codes.
1772 * @setcmd: IPA command code
1773 *
1774 * Returns negative errno-compatible error indication or 0 on success.
1775 */
1776static int qeth_bridgeport_makerc(struct qeth_card *card,
1777 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1778{
1779 int rc;
9c23f4da 1780 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
b4d72c08 1781
9c23f4da
EC		 1782 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1783 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
b4d72c08
EC		 1784 switch (cbctl->cmd_rc) {
1785 case 0x0000:
1786 rc = 0;
1787 break;
9c23f4da 1788 case 0x2B04:
b4d72c08 1789 case 0x0004:
ffb95251 1790 rc = -EOPNOTSUPP;
b4d72c08 1791 break;
9c23f4da 1792 case 0x2B0C:
b4d72c08
EC		 1793 case 0x000C: /* Not configured as bridge Port */
1794 rc = -ENODEV; /* maybe not the best code here? */
1795 dev_err(&card->gdev->dev,
9c23f4da 1796 "The device is not configured as a Bridge Port\n");
b4d72c08 1797 break;
1b05cf62
EC		 1798 case 0x2B10:
1799 case 0x0010: /* OS mismatch */
1800 rc = -EPERM;
1801 dev_err(&card->gdev->dev,
1802 "A Bridge Port is already configured by a different operating system\n");
1803 break;
9c23f4da 1804 case 0x2B14:
b4d72c08
EC		 1805 case 0x0014: /* Another device is Primary */
1806 switch (setcmd) {
1807 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1808 rc = -EEXIST;
1809 dev_err(&card->gdev->dev,
9c23f4da 1810 "The LAN already has a primary Bridge Port\n");
b4d72c08
EC		 1811 break;
1812 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1813 rc = -EBUSY;
1814 dev_err(&card->gdev->dev,
9c23f4da 1815 "The device is already a primary Bridge Port\n");
b4d72c08
EC		 1816 break;
1817 default:
1818 rc = -EIO;
1819 }
1820 break;
9c23f4da 1821 case 0x2B18:
b4d72c08
EC		 1822 case 0x0018: /* This device is currently Secondary */
1823 rc = -EBUSY;
1824 dev_err(&card->gdev->dev,
9c23f4da 1825 "The device is already a secondary Bridge Port\n");
b4d72c08 1826 break;
9c23f4da 1827 case 0x2B1C:
b4d72c08
EC		 1828 case 0x001C: /* Limit for Secondary devices reached */
1829 rc = -EEXIST;
1830 dev_err(&card->gdev->dev,
9c23f4da 1831 "The LAN cannot have more secondary Bridge Ports\n");
b4d72c08 1832 break;
9c23f4da 1833 case 0x2B24:
b4d72c08
EC		 1834 case 0x0024: /* This device is currently Primary */
1835 rc = -EBUSY;
1836 dev_err(&card->gdev->dev,
9c23f4da 1837 "The device is already a primary Bridge Port\n");
b4d72c08 1838 break;
9c23f4da 1839 case 0x2B20:
b4d72c08
EC		 1840 case 0x0020: /* Not authorized by zManager */
1841 rc = -EACCES;
1842 dev_err(&card->gdev->dev,
9c23f4da 1843 "The device is not authorized to be a Bridge Port\n");
b4d72c08
EC		 1844 break;
1845 default:
1846 rc = -EIO;
1847 }
9c23f4da
EC		 1848 else
1849 switch (cbctl->ipa_rc) {
1850 case IPA_RC_NOTSUPP:
ffb95251 1851 rc = -EOPNOTSUPP;
9c23f4da
EC		 1852 break;
1853 case IPA_RC_UNSUPPORTED_COMMAND:
ffb95251 1854 rc = -EOPNOTSUPP;
9c23f4da
EC		 1855 break;
1856 default:
1857 rc = -EIO;
1858 }
1859
b4d72c08
EC		 1860 if (rc) {
1861 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1862 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1863 }
1864 return rc;
1865}
1866
9c23f4da
EC		 1867static inline int ipa_cmd_sbp(struct qeth_card *card)
1868{
1869 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1870 IPA_CMD_SETBRIDGEPORT_IQD :
1871 IPA_CMD_SETBRIDGEPORT_OSA;
1872}
1873
b4d72c08
EC		 1874static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1875 struct qeth_reply *reply, unsigned long data)
1876{
1877 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1878 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1879 QETH_CARD_TEXT(card, 2, "brqsupcb");
1880 cbctl->ipa_rc = cmd->hdr.return_code;
1881 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1882 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1883 cbctl->data.supported =
1884 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1885 } else {
1886 cbctl->data.supported = 0;
1887 }
1888 return 0;
1889}
1890
1891/**
1892 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1893 * @card: qeth_card structure pointer.
1894 *
1895 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1896 * strucutre: card->options.sbp.supported_funcs.
1897 */
c044dc21 1898static void qeth_bridgeport_query_support(struct qeth_card *card)
b4d72c08
EC		 1899{
1900 struct qeth_cmd_buffer *iob;
1901 struct qeth_ipa_cmd *cmd;
1902 struct _qeth_sbp_cbctl cbctl;
1903
1904 QETH_CARD_TEXT(card, 2, "brqsuppo");
9c23f4da 1905 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1906 if (!iob)
1907 return;
b4d72c08
EC		 1908 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1909 cmd->data.sbp.hdr.cmdlength =
1910 sizeof(struct qeth_ipacmd_sbp_hdr) +
1911 sizeof(struct qeth_sbp_query_cmds_supp);
1912 cmd->data.sbp.hdr.command_code =
1913 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1914 cmd->data.sbp.hdr.used_total = 1;
1915 cmd->data.sbp.hdr.seq_no = 1;
1916 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1917 (void *)&cbctl) ||
1918 qeth_bridgeport_makerc(card, &cbctl,
1919 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1920 /* non-zero makerc signifies failure, and produce messages */
1921 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1922 return;
1923 }
1924 card->options.sbp.supported_funcs = cbctl.data.supported;
1925}
b4d72c08
EC		 1926
1927static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1928 struct qeth_reply *reply, unsigned long data)
1929{
1930 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1931 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1932 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1933
1934 QETH_CARD_TEXT(card, 2, "brqprtcb");
1935 cbctl->ipa_rc = cmd->hdr.return_code;
1936 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1937 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1938 return 0;
1939 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1940 cbctl->cmd_rc = 0xffff;
1941 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1942 return 0;
1943 }
1944 /* first entry contains the state of the local port */
1945 if (qports->num_entries > 0) {
1946 if (cbctl->data.qports.role)
1947 *cbctl->data.qports.role = qports->entry[0].role;
1948 if (cbctl->data.qports.state)
1949 *cbctl->data.qports.state = qports->entry[0].state;
1950 }
1951 return 0;
1952}
1953
1954/**
1955 * qeth_bridgeport_query_ports() - query local bridgeport status.
1956 * @card: qeth_card structure pointer.
1957 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1958 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1959 *
1960 * Returns negative errno-compatible error indication or 0 on success.
1961 *
1962 * 'role' and 'state' are not updated in case of hardware operation failure.
1963 */
1964int qeth_bridgeport_query_ports(struct qeth_card *card,
1965 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1966{
1967 int rc = 0;
1968 struct qeth_cmd_buffer *iob;
1969 struct qeth_ipa_cmd *cmd;
1970 struct _qeth_sbp_cbctl cbctl = {
1971 .data = {
1972 .qports = {
1973 .role = role,
1974 .state = state,
1975 },
1976 },
1977 };
1978
1979 QETH_CARD_TEXT(card, 2, "brqports");
1980 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1981 return -EOPNOTSUPP;
9c23f4da 1982 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1983 if (!iob)
1984 return -ENOMEM;
b4d72c08
EC		 1985 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1986 cmd->data.sbp.hdr.cmdlength =
1987 sizeof(struct qeth_ipacmd_sbp_hdr);
1988 cmd->data.sbp.hdr.command_code =
1989 IPA_SBP_QUERY_BRIDGE_PORTS;
1990 cmd->data.sbp.hdr.used_total = 1;
1991 cmd->data.sbp.hdr.seq_no = 1;
1992 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1993 (void *)&cbctl);
c88394e7 1994 if (rc < 0)
b4d72c08 1995 return rc;
c88394e7 1996 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
b4d72c08
EC		 1997}
1998EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
1999
2000static int qeth_bridgeport_set_cb(struct qeth_card *card,
2001 struct qeth_reply *reply, unsigned long data)
2002{
2003 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
2004 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
2005 QETH_CARD_TEXT(card, 2, "brsetrcb");
2006 cbctl->ipa_rc = cmd->hdr.return_code;
2007 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
2008 return 0;
2009}
2010
2011/**
2012 * qeth_bridgeport_setrole() - Assign primary role to the port.
2013 * @card: qeth_card structure pointer.
2014 * @role: Role to assign.
2015 *
2016 * Returns negative errno-compatible error indication or 0 on success.
2017 */
2018int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
2019{
2020 int rc = 0;
2021 int cmdlength;
2022 struct qeth_cmd_buffer *iob;
2023 struct qeth_ipa_cmd *cmd;
2024 struct _qeth_sbp_cbctl cbctl;
2025 enum qeth_ipa_sbp_cmd setcmd;
2026
2027 QETH_CARD_TEXT(card, 2, "brsetrol");
2028 switch (role) {
2029 case QETH_SBP_ROLE_NONE:
2030 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
2031 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2032 sizeof(struct qeth_sbp_reset_role);
2033 break;
2034 case QETH_SBP_ROLE_PRIMARY:
2035 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
2036 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2037 sizeof(struct qeth_sbp_set_primary);
2038 break;
2039 case QETH_SBP_ROLE_SECONDARY:
2040 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
2041 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2042 sizeof(struct qeth_sbp_set_secondary);
2043 break;
2044 default:
2045 return -EINVAL;
2046 }
2047 if (!(card->options.sbp.supported_funcs & setcmd))
2048 return -EOPNOTSUPP;
9c23f4da 2049 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 2050 if (!iob)
2051 return -ENOMEM;
b4d72c08
EC		 2052 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2053 cmd->data.sbp.hdr.cmdlength = cmdlength;
2054 cmd->data.sbp.hdr.command_code = setcmd;
2055 cmd->data.sbp.hdr.used_total = 1;
2056 cmd->data.sbp.hdr.seq_no = 1;
2057 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
2058 (void *)&cbctl);
c88394e7 2059 if (rc < 0)
b4d72c08 2060 return rc;
c88394e7 2061 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
b4d72c08
EC		 2062}
2063
9f48b9db
EC		 2064/**
2065 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
2066 * @card: qeth_card structure pointer, for debug messages.
2067 *
2068 * Returns negative errno-compatible error indication or 0 on success.
2069 */
2070static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
2071{
2072 int rc;
2073
2074 if (pnso_rc == 0)
2075 switch (response) {
2076 case 0x0001:
2077 rc = 0;
2078 break;
2079 case 0x0004:
2080 case 0x0100:
2081 case 0x0106:
ffb95251 2082 rc = -EOPNOTSUPP;
9f48b9db
EC		 2083 dev_err(&card->gdev->dev,
2084 "Setting address notification failed\n");
2085 break;
2086 case 0x0107:
2087 rc = -EAGAIN;
2088 break;
2089 default:
2090 rc = -EIO;
2091 }
2092 else
2093 rc = -EIO;
2094
2095 if (rc) {
2096 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
2097 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
2098 }
2099 return rc;
2100}
2101
2102static void qeth_bridgeport_an_set_cb(void *priv,
2103 enum qdio_brinfo_entry_type type, void *entry)
2104{
2105 struct qeth_card *card = (struct qeth_card *)priv;
2106 struct qdio_brinfo_entry_l2 *l2entry;
2107 u8 code;
2108
2109 if (type != l2_addr_lnid) {
2110 WARN_ON_ONCE(1);
2111 return;
2112 }
2113
2114 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
2115 code = IPA_ADDR_CHANGE_CODE_MACADDR;
2116 if (l2entry->addr_lnid.lnid)
2117 code |= IPA_ADDR_CHANGE_CODE_VLANID;
2118 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
2119 (struct net_if_token *)&l2entry->nit,
2120 (struct mac_addr_lnid *)&l2entry->addr_lnid);
2121}
2122
2123/**
2124 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
2125 * @card: qeth_card structure pointer.
2126 * @enable: 0 - disable, non-zero - enable notifications
2127 *
2128 * Returns negative errno-compatible error indication or 0 on success.
2129 *
2130 * On enable, emits a series of address notifications udev events for all
2131 * currently registered hosts.
2132 */
2133int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
2134{
2135 int rc;
2136 u16 response;
2137 struct ccw_device *ddev;
2138 struct subchannel_id schid;
2139
2140 if (!card)
2141 return -EINVAL;
2142 if (!card->options.sbp.supported_funcs)
2143 return -EOPNOTSUPP;
2144 ddev = CARD_DDEV(card);
2145 ccw_device_get_schid(ddev, &schid);
2146
2147 if (enable) {
2148 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
2149 rc = qdio_pnso_brinfo(schid, 1, &response,
2150 qeth_bridgeport_an_set_cb, card);
2151 } else
2152 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
2153 return qeth_anset_makerc(card, rc, response);
2154}
2155EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2156
4a71df50
FB		 2157module_init(qeth_l2_init);
2158module_exit(qeth_l2_exit);
2159MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2160MODULE_DESCRIPTION("qeth layer 2 discipline");
2161MODULE_LICENSE("GPL");
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