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s390/qeth: move gdev shutdown handler to core
[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 18#include <linux/etherdevice.h>
4a71df50 19#include <linux/ip.h>
ccffad25 20#include <linux/list.h>
fe5c8028
LD		 21#include <linux/hash.h>
22#include <linux/hashtable.h>
23#include <linux/string.h>
4a71df50 24#include "qeth_core.h"
b4d72c08 25#include "qeth_l2.h"
4a71df50 26
4a71df50
FB		 27static int qeth_l2_set_offline(struct ccwgroup_device *);
28static int qeth_l2_stop(struct net_device *);
fe5c8028 29static void qeth_l2_set_rx_mode(struct net_device *);
c044dc21
EC		 30static void qeth_bridgeport_query_support(struct qeth_card *card);
31static void qeth_bridge_state_change(struct qeth_card *card,
32 struct qeth_ipa_cmd *cmd);
33static void qeth_bridge_host_event(struct qeth_card *card,
34 struct qeth_ipa_cmd *cmd);
4a71df50 35
4a71df50
FB		 36static int qeth_l2_verify_dev(struct net_device *dev)
37{
38 struct qeth_card *card;
39 unsigned long flags;
40 int rc = 0;
41
42 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
43 list_for_each_entry(card, &qeth_core_card_list.list, list) {
44 if (card->dev == dev) {
45 rc = QETH_REAL_CARD;
46 break;
47 }
48 }
49 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
50
51 return rc;
52}
53
54static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
55{
56 struct qeth_card *card;
57 struct net_device *ndev;
f06f6f32 58 __u16 temp_dev_no;
4a71df50 59 unsigned long flags;
f06f6f32 60 struct ccw_dev_id read_devid;
4a71df50
FB		 61
62 ndev = NULL;
63 memcpy(&temp_dev_no, read_dev_no, 2);
64 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
65 list_for_each_entry(card, &qeth_core_card_list.list, list) {
f06f6f32
CH		 66 ccw_device_get_id(CARD_RDEV(card), &read_devid);
67 if (read_devid.devno == temp_dev_no) {
4a71df50
FB		 68 ndev = card->dev;
69 break;
70 }
71 }
72 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
73 return ndev;
74}
75
efbbc1d5 76static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
4a71df50 77{
efbbc1d5 78 int rc;
4a71df50 79
efbbc1d5 80 if (retcode)
1aec42bc 81 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
efbbc1d5
EC		 82 switch (retcode) {
83 case IPA_RC_SUCCESS:
84 rc = 0;
85 break;
86 case IPA_RC_L2_UNSUPPORTED_CMD:
ffb95251 87 rc = -EOPNOTSUPP;
efbbc1d5
EC		 88 break;
89 case IPA_RC_L2_ADDR_TABLE_FULL:
90 rc = -ENOSPC;
91 break;
92 case IPA_RC_L2_DUP_MAC:
93 case IPA_RC_L2_DUP_LAYER3_MAC:
94 rc = -EEXIST;
95 break;
96 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
97 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
98 rc = -EPERM;
99 break;
100 case IPA_RC_L2_MAC_NOT_FOUND:
101 rc = -ENOENT;
102 break;
1aec42bc
TR		 103 case -ENOMEM:
104 rc = -ENOMEM;
105 break;
efbbc1d5
EC		 106 default:
107 rc = -EIO;
108 break;
4a71df50 109 }
efbbc1d5 110 return rc;
4a71df50
FB		 111}
112
ac988d78
JW		 113static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
114 enum qeth_ipa_cmds ipacmd)
115{
116 struct qeth_ipa_cmd *cmd;
117 struct qeth_cmd_buffer *iob;
118
119 QETH_CARD_TEXT(card, 2, "L2sdmac");
120 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
121 if (!iob)
122 return -ENOMEM;
123 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
124 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
125 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
126 return qeth_setdel_makerc(card, qeth_send_ipa_cmd(card, iob,
127 NULL, NULL));
128}
129
130static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
131{
132 int rc;
133
134 QETH_CARD_TEXT(card, 2, "L2Setmac");
135 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC);
136 if (rc == 0) {
137 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
138 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
139 dev_info(&card->gdev->dev,
140 "MAC address %pM successfully registered on device %s\n",
141 card->dev->dev_addr, card->dev->name);
142 } else {
143 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
144 switch (rc) {
145 case -EEXIST:
146 dev_warn(&card->gdev->dev,
147 "MAC address %pM already exists\n", mac);
148 break;
149 case -EPERM:
150 dev_warn(&card->gdev->dev,
151 "MAC address %pM is not authorized\n", mac);
152 break;
153 }
154 }
155 return rc;
156}
157
158static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
159{
160 int rc;
161
162 QETH_CARD_TEXT(card, 2, "L2Delmac");
163 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
164 return 0;
165 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC);
166 if (rc == 0)
167 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
168 return rc;
169}
170
4a71df50
FB		 171static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
172{
efbbc1d5 173 int rc;
4a71df50 174
efbbc1d5 175 QETH_CARD_TEXT(card, 2, "L2Sgmac");
754e0b8d 176 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC);
efbbc1d5
EC		 177 if (rc == -EEXIST)
178 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
179 mac, QETH_CARD_IFNAME(card));
180 else if (rc)
181 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n",
182 mac, QETH_CARD_IFNAME(card), rc);
183 return rc;
4a71df50
FB		 184}
185
186static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
187{
efbbc1d5
EC		 188 int rc;
189
847a50fd 190 QETH_CARD_TEXT(card, 2, "L2Dgmac");
754e0b8d 191 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC);
efbbc1d5
EC		 192 if (rc)
193 QETH_DBF_MESSAGE(2,
194 "Could not delete group MAC %pM on %s: %d\n",
195 mac, QETH_CARD_IFNAME(card), rc);
196 return rc;
4a71df50
FB		 197}
198
fe5c8028
LD		 199static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
200{
fe5c8028 201 if (mac->is_uc) {
979d7929 202 return qeth_l2_send_setdelmac(card, mac->mac_addr,
754e0b8d 203 IPA_CMD_SETVMAC);
7db2266a 204 } else {
979d7929
JW		 205 return qeth_l2_send_setgroupmac(card, mac->mac_addr);
206 }
207}
208
209static int qeth_l2_remove_mac(struct qeth_card *card, struct qeth_mac *mac)
210{
211 if (mac->is_uc) {
212 return qeth_l2_send_setdelmac(card, mac->mac_addr,
213 IPA_CMD_DELVMAC);
214 } else {
215 return qeth_l2_send_delgroupmac(card, mac->mac_addr);
7db2266a 216 }
4a71df50
FB		 217}
218
c07cbf2e 219static void qeth_l2_del_all_macs(struct qeth_card *card)
4a71df50 220{
fe5c8028
LD		 221 struct qeth_mac *mac;
222 struct hlist_node *tmp;
223 int i;
4a71df50
FB		 224
225 spin_lock_bh(&card->mclock);
fe5c8028 226 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
fe5c8028
LD		 227 hash_del(&mac->hnode);
228 kfree(mac);
4a71df50
FB		 229 }
230 spin_unlock_bh(&card->mclock);
231}
232
ac988d78
JW		 233static inline u32 qeth_l2_mac_hash(const u8 *addr)
234{
235 return get_unaligned((u32 *)(&addr[2]));
236}
237
ce73e10e
KDW		 238static inline int qeth_l2_get_cast_type(struct qeth_card *card,
239 struct sk_buff *skb)
4a71df50 240{
ce73e10e
KDW		 241 if (card->info.type == QETH_CARD_TYPE_OSN)
242 return RTN_UNSPEC;
243 if (is_broadcast_ether_addr(skb->data))
244 return RTN_BROADCAST;
245 if (is_multicast_ether_addr(skb->data))
246 return RTN_MULTICAST;
247 return RTN_UNSPEC;
4a71df50
FB		 248}
249
4d7def2a
TR		 250static inline void qeth_l2_hdr_csum(struct qeth_card *card,
251 struct qeth_hdr *hdr, struct sk_buff *skb)
252{
253 struct iphdr *iph = ip_hdr(skb);
254
255 /* tcph->check contains already the pseudo hdr checksum
256 * so just set the header flags
257 */
258 if (iph->protocol == IPPROTO_UDP)
259 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP;
260 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
261 QETH_HDR_EXT_CSUM_HDR_REQ;
262 iph->check = 0;
263 if (card->options.performance_stats)
264 card->perf_stats.tx_csum++;
265}
266
4a71df50 267static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
43934077 268 struct sk_buff *skb, int cast_type)
4a71df50 269{
683d718a 270 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
4a71df50
FB		 271
272 memset(hdr, 0, sizeof(struct qeth_hdr));
273 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
274
275 /* set byte byte 3 to casting flags */
276 if (cast_type == RTN_MULTICAST)
277 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
278 else if (cast_type == RTN_BROADCAST)
279 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
280 else
ce73e10e 281 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
4a71df50
FB		 282
283 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
284 /* VSWITCH relies on the VLAN
285 * information to be present in
286 * the QDIO header */
287 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
288 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
289 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
290 }
291}
292
293static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
294 struct qeth_reply *reply, unsigned long data)
295{
296 struct qeth_ipa_cmd *cmd;
297
847a50fd 298 QETH_CARD_TEXT(card, 2, "L2sdvcb");
4a71df50
FB		 299 cmd = (struct qeth_ipa_cmd *) data;
300 if (cmd->hdr.return_code) {
14cc21b6 301 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
4a71df50
FB		 302 "Continuing\n", cmd->data.setdelvlan.vlan_id,
303 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
847a50fd
CO		 304 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
305 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
4a71df50
FB		 306 }
307 return 0;
308}
309
310static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
311 enum qeth_ipa_cmds ipacmd)
312{
313 struct qeth_ipa_cmd *cmd;
314 struct qeth_cmd_buffer *iob;
315
847a50fd 316 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
4a71df50 317 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 318 if (!iob)
319 return -ENOMEM;
4a71df50
FB		 320 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
321 cmd->data.setdelvlan.vlan_id = i;
322 return qeth_send_ipa_cmd(card, iob,
323 qeth_l2_send_setdelvlan_cb, NULL);
324}
325
70919e23 326static void qeth_l2_process_vlans(struct qeth_card *card)
4a71df50
FB		 327{
328 struct qeth_vlan_vid *id;
847a50fd 329 QETH_CARD_TEXT(card, 3, "L2prcvln");
4a71df50
FB		 330 spin_lock_bh(&card->vlanlock);
331 list_for_each_entry(id, &card->vid_list, list) {
70919e23 332 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
4a71df50
FB		 333 }
334 spin_unlock_bh(&card->vlanlock);
335}
336
80d5c368
PM		 337static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
338 __be16 proto, u16 vid)
4a71df50 339{
509e2562 340 struct qeth_card *card = dev->ml_priv;
4a71df50 341 struct qeth_vlan_vid *id;
1aec42bc 342 int rc;
4a71df50 343
847a50fd 344 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
10651db7 345 if (!vid)
8e586137 346 return 0;
5113fec0 347 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 348 QETH_CARD_TEXT(card, 3, "aidOSM");
8e586137 349 return 0;
5113fec0 350 }
8e98ac48 351 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 352 QETH_CARD_TEXT(card, 3, "aidREC");
8e586137 353 return 0;
8e98ac48 354 }
4a71df50
FB		 355 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
356 if (id) {
357 id->vid = vid;
1aec42bc
TR		 358 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
359 if (rc) {
360 kfree(id);
361 return rc;
362 }
4a71df50
FB		 363 spin_lock_bh(&card->vlanlock);
364 list_add_tail(&id->list, &card->vid_list);
365 spin_unlock_bh(&card->vlanlock);
8e586137
JP		 366 } else {
367 return -ENOMEM;
4a71df50 368 }
8e586137 369 return 0;
4a71df50
FB		 370}
371
80d5c368
PM		 372static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
373 __be16 proto, u16 vid)
4a71df50
FB		 374{
375 struct qeth_vlan_vid *id, *tmpid = NULL;
509e2562 376 struct qeth_card *card = dev->ml_priv;
1aec42bc 377 int rc = 0;
4a71df50 378
847a50fd 379 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
5113fec0 380 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 381 QETH_CARD_TEXT(card, 3, "kidOSM");
8e586137 382 return 0;
5113fec0 383 }
8e98ac48 384 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 385 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 386 return 0;
8e98ac48 387 }
4a71df50
FB		 388 spin_lock_bh(&card->vlanlock);
389 list_for_each_entry(id, &card->vid_list, list) {
390 if (id->vid == vid) {
391 list_del(&id->list);
392 tmpid = id;
393 break;
394 }
395 }
396 spin_unlock_bh(&card->vlanlock);
397 if (tmpid) {
1aec42bc 398 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
4a71df50
FB		 399 kfree(tmpid);
400 }
fe5c8028 401 qeth_l2_set_rx_mode(card->dev);
1aec42bc 402 return rc;
4a71df50
FB		 403}
404
b2f4de8b 405static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
4a71df50 406{
d11ba0c4
PT		 407 QETH_DBF_TEXT(SETUP , 2, "stopcard");
408 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 409
410 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 411 if (card->read.state == CH_STATE_UP &&
412 card->write.state == CH_STATE_UP &&
413 (card->state == CARD_STATE_UP)) {
414 if (recovery_mode &&
415 card->info.type != QETH_CARD_TYPE_OSN) {
416 qeth_l2_stop(card->dev);
417 } else {
418 rtnl_lock();
419 dev_close(card->dev);
420 rtnl_unlock();
421 }
70919e23 422 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
4a71df50
FB		 423 card->state = CARD_STATE_SOFTSETUP;
424 }
425 if (card->state == CARD_STATE_SOFTSETUP) {
c07cbf2e 426 qeth_l2_del_all_macs(card);
4a71df50
FB		 427 qeth_clear_ipacmd_list(card);
428 card->state = CARD_STATE_HARDSETUP;
429 }
430 if (card->state == CARD_STATE_HARDSETUP) {
431 qeth_qdio_clear_card(card, 0);
432 qeth_clear_qdio_buffers(card);
433 qeth_clear_working_pool_list(card);
434 card->state = CARD_STATE_DOWN;
435 }
436 if (card->state == CARD_STATE_DOWN) {
437 qeth_clear_cmd_buffers(&card->read);
438 qeth_clear_cmd_buffers(&card->write);
439 }
4a71df50
FB		 440}
441
a1c3ed4c
FB		 442static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
443 int budget, int *done)
4a71df50 444{
a1c3ed4c 445 int work_done = 0;
4a71df50
FB		 446 struct sk_buff *skb;
447 struct qeth_hdr *hdr;
4a71df50
FB		 448 unsigned int len;
449
a1c3ed4c 450 *done = 0;
18af5c17 451 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 452 while (budget) {
453 skb = qeth_core_get_next_skb(card,
b3332930 454 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 455 &card->rx.b_element, &card->rx.e_offset, &hdr);
456 if (!skb) {
457 *done = 1;
458 break;
4a71df50 459 }
a1c3ed4c 460 skb->dev = card->dev;
4a71df50
FB		 461 switch (hdr->hdr.l2.id) {
462 case QETH_HEADER_TYPE_LAYER2:
463 skb->pkt_type = PACKET_HOST;
464 skb->protocol = eth_type_trans(skb, skb->dev);
4d7def2a
TR		 465 if ((card->dev->features & NETIF_F_RXCSUM)
466 && ((hdr->hdr.l2.flags[1] &
467 (QETH_HDR_EXT_CSUM_HDR_REQ |
468 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
469 (QETH_HDR_EXT_CSUM_HDR_REQ |
470 QETH_HDR_EXT_CSUM_TRANSP_REQ)))
471 skb->ip_summed = CHECKSUM_UNNECESSARY;
472 else
473 skb->ip_summed = CHECKSUM_NONE;
12883725
UB		 474 if (skb->protocol == htons(ETH_P_802_2))
475 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
4a71df50 476 len = skb->len;
9abfa8cb 477 napi_gro_receive(&card->napi, skb);
4a71df50
FB		 478 break;
479 case QETH_HEADER_TYPE_OSN:
2d488c2f
UB		 480 if (card->info.type == QETH_CARD_TYPE_OSN) {
481 skb_push(skb, sizeof(struct qeth_hdr));
482 skb_copy_to_linear_data(skb, hdr,
4a71df50 483 sizeof(struct qeth_hdr));
2d488c2f
UB		 484 len = skb->len;
485 card->osn_info.data_cb(skb);
486 break;
487 }
488 /* else unknown */
4a71df50
FB		 489 default:
490 dev_kfree_skb_any(skb);
847a50fd 491 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 492 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 493 continue;
494 }
a1c3ed4c
FB		 495 work_done++;
496 budget--;
4a71df50
FB		 497 card->stats.rx_packets++;
498 card->stats.rx_bytes += len;
499 }
a1c3ed4c
FB		 500 return work_done;
501}
502
4a71df50
FB		 503static int qeth_l2_request_initial_mac(struct qeth_card *card)
504{
505 int rc = 0;
506 char vendor_pre[] = {0x02, 0x00, 0x00};
507
d11ba0c4
PT		 508 QETH_DBF_TEXT(SETUP, 2, "doL2init");
509 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
4a71df50 510
a134884a
SR		 511 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
512 rc = qeth_query_setadapterparms(card);
513 if (rc) {
514 QETH_DBF_MESSAGE(2, "could not query adapter "
515 "parameters on device %s: x%x\n",
516 CARD_BUS_ID(card), rc);
517 }
4a71df50
FB		 518 }
519
5113fec0
UB		 520 if (card->info.type == QETH_CARD_TYPE_IQD ||
521 card->info.type == QETH_CARD_TYPE_OSM ||
522 card->info.type == QETH_CARD_TYPE_OSX ||
523 card->info.guestlan) {
4a71df50
FB		 524 rc = qeth_setadpparms_change_macaddr(card);
525 if (rc) {
14cc21b6
FB		 526 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
527 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1aec42bc 528 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
4a71df50
FB		 529 return rc;
530 }
d11ba0c4 531 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
4a71df50 532 } else {
1833611d 533 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 534 memcpy(card->dev->dev_addr, vendor_pre, 3);
535 }
536 return 0;
537}
538
539static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
540{
541 struct sockaddr *addr = p;
509e2562 542 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 543 int rc = 0;
544
847a50fd 545 QETH_CARD_TEXT(card, 3, "setmac");
4a71df50
FB		 546
547 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
847a50fd 548 QETH_CARD_TEXT(card, 3, "setmcINV");
4a71df50
FB		 549 return -EOPNOTSUPP;
550 }
551
5113fec0
UB		 552 if (card->info.type == QETH_CARD_TYPE_OSN ||
553 card->info.type == QETH_CARD_TYPE_OSM ||
554 card->info.type == QETH_CARD_TYPE_OSX) {
847a50fd 555 QETH_CARD_TEXT(card, 3, "setmcTYP");
4a71df50
FB		 556 return -EOPNOTSUPP;
557 }
847a50fd 558 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
8e98ac48 559 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 560 QETH_CARD_TEXT(card, 3, "setmcREC");
8e98ac48
UB		 561 return -ERESTARTSYS;
562 }
4a71df50 563 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
efbbc1d5 564 if (!rc || (rc == -ENOENT))
4a71df50 565 rc = qeth_l2_send_setmac(card, addr->sa_data);
e0a8114c 566 return rc ? -EINVAL : 0;
4a71df50
FB		 567}
568
0db587b0
EC		 569static void qeth_promisc_to_bridge(struct qeth_card *card)
570{
571 struct net_device *dev = card->dev;
572 enum qeth_ipa_promisc_modes promisc_mode;
573 int role;
574 int rc;
575
576 QETH_CARD_TEXT(card, 3, "pmisc2br");
577
578 if (!card->options.sbp.reflect_promisc)
579 return;
580 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
581 : SET_PROMISC_MODE_OFF;
582 if (promisc_mode == card->info.promisc_mode)
583 return;
584
585 if (promisc_mode == SET_PROMISC_MODE_ON) {
586 if (card->options.sbp.reflect_promisc_primary)
587 role = QETH_SBP_ROLE_PRIMARY;
588 else
589 role = QETH_SBP_ROLE_SECONDARY;
590 } else
591 role = QETH_SBP_ROLE_NONE;
592
593 rc = qeth_bridgeport_setrole(card, role);
594 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
595 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
596 if (!rc) {
597 card->options.sbp.role = role;
598 card->info.promisc_mode = promisc_mode;
599 }
fe5c8028
LD		 600
601}
602/* New MAC address is added to the hash table and marked to be written on card
603 * only if there is not in the hash table storage already
604 *
605*/
606static void
607qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha, u8 is_uc)
608{
609 struct qeth_mac *mac;
610
611 hash_for_each_possible(card->mac_htable, mac, hnode,
612 qeth_l2_mac_hash(ha->addr)) {
613 if (is_uc == mac->is_uc &&
614 !memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
5f78e29c 615 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
fe5c8028
LD		 616 return;
617 }
618 }
619
620 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
621
622 if (!mac)
623 return;
624
625 memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
626 mac->is_uc = is_uc;
5f78e29c 627 mac->disp_flag = QETH_DISP_ADDR_ADD;
fe5c8028
LD		 628
629 hash_add(card->mac_htable, &mac->hnode,
630 qeth_l2_mac_hash(mac->mac_addr));
631
0db587b0
EC		 632}
633
fe5c8028 634static void qeth_l2_set_rx_mode(struct net_device *dev)
4a71df50 635{
509e2562 636 struct qeth_card *card = dev->ml_priv;
ccffad25 637 struct netdev_hw_addr *ha;
fe5c8028
LD		 638 struct qeth_mac *mac;
639 struct hlist_node *tmp;
640 int i;
641 int rc;
4a71df50
FB		 642
643 if (card->info.type == QETH_CARD_TYPE_OSN)
fe5c8028 644 return;
4a71df50 645
847a50fd 646 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 647 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
648 (card->state != CARD_STATE_UP))
649 return;
fe5c8028 650
4a71df50 651 spin_lock_bh(&card->mclock);
fe5c8028 652
22bedad3 653 netdev_for_each_mc_addr(ha, dev)
fe5c8028 654 qeth_l2_add_mac(card, ha, 0);
7db2266a 655
32e7bfc4 656 netdev_for_each_uc_addr(ha, dev)
fe5c8028
LD		 657 qeth_l2_add_mac(card, ha, 1);
658
659 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
5f78e29c 660 if (mac->disp_flag == QETH_DISP_ADDR_DELETE) {
979d7929 661 qeth_l2_remove_mac(card, mac);
fe5c8028
LD		 662 hash_del(&mac->hnode);
663 kfree(mac);
664
5f78e29c 665 } else if (mac->disp_flag == QETH_DISP_ADDR_ADD) {
fe5c8028
LD		 666 rc = qeth_l2_write_mac(card, mac);
667 if (rc) {
668 hash_del(&mac->hnode);
669 kfree(mac);
670 } else
5f78e29c 671 mac->disp_flag = QETH_DISP_ADDR_DELETE;
fe5c8028 672 } else
5f78e29c 673 mac->disp_flag = QETH_DISP_ADDR_DELETE;
fe5c8028 674 }
7db2266a 675
4a71df50 676 spin_unlock_bh(&card->mclock);
fe5c8028 677
0db587b0
EC		 678 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
679 qeth_setadp_promisc_mode(card);
680 else
681 qeth_promisc_to_bridge(card);
4a71df50
FB		 682}
683
684static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
685{
686 int rc;
687 struct qeth_hdr *hdr = NULL;
688 int elements = 0;
509e2562 689 struct qeth_card *card = dev->ml_priv;
4a71df50 690 struct sk_buff *new_skb = skb;
ce73e10e 691 int cast_type = qeth_l2_get_cast_type(card, skb);
290b8348 692 struct qeth_qdio_out_q *queue;
4a71df50 693 int tx_bytes = skb->len;
683d718a
FB		 694 int data_offset = -1;
695 int elements_needed = 0;
696 int hd_len = 0;
d52aec97 697 int nr_frags;
4a71df50 698
290b8348
SR		 699 if (card->qdio.do_prio_queueing || (cast_type &&
700 card->info.is_multicast_different))
701 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
702 qeth_get_ip_version(skb), cast_type)];
703 else
704 queue = card->qdio.out_qs[card->qdio.default_out_queue];
705
4a71df50
FB		 706 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
707 card->stats.tx_carrier_errors++;
708 goto tx_drop;
709 }
710
711 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
712 (skb->protocol == htons(ETH_P_IPV6)))
713 goto tx_drop;
714
715 if (card->options.performance_stats) {
716 card->perf_stats.outbound_cnt++;
717 card->perf_stats.outbound_start_time = qeth_get_micros();
718 }
719 netif_stop_queue(dev);
720
d52aec97
EC		 721 /* fix hardware limitation: as long as we do not have sbal
722 * chaining we can not send long frag lists
723 */
724 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
7d969d2e 725 !qeth_get_elements_no(card, new_skb, 0, 0)) {
6059c905
EC		 726 int lin_rc = skb_linearize(new_skb);
727
728 if (card->options.performance_stats) {
729 if (lin_rc)
730 card->perf_stats.tx_linfail++;
731 else
732 card->perf_stats.tx_lin++;
733 }
734 if (lin_rc)
d52aec97 735 goto tx_drop;
d52aec97
EC		 736 }
737
4a71df50
FB		 738 if (card->info.type == QETH_CARD_TYPE_OSN)
739 hdr = (struct qeth_hdr *)skb->data;
740 else {
64ef8957 741 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 742 new_skb = skb;
743 data_offset = ETH_HLEN;
744 hd_len = ETH_HLEN;
745 hdr = kmem_cache_alloc(qeth_core_header_cache,
746 GFP_ATOMIC);
747 if (!hdr)
748 goto tx_drop;
749 elements_needed++;
750 skb_reset_mac_header(new_skb);
43934077 751 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
683d718a
FB		 752 hdr->hdr.l2.pkt_length = new_skb->len;
753 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
754 skb_mac_header(new_skb), ETH_HLEN);
755 } else {
756 /* create a clone with writeable headroom */
757 new_skb = skb_realloc_headroom(skb,
758 sizeof(struct qeth_hdr));
759 if (!new_skb)
760 goto tx_drop;
761 hdr = (struct qeth_hdr *)skb_push(new_skb,
f90b744e 762 sizeof(struct qeth_hdr));
683d718a 763 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
43934077 764 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
4d7def2a
TR		 765 if (new_skb->ip_summed == CHECKSUM_PARTIAL)
766 qeth_l2_hdr_csum(card, hdr, new_skb);
683d718a 767 }
4a71df50
FB		 768 }
769
7d969d2e
JW		 770 elements = qeth_get_elements_no(card, new_skb, elements_needed,
771 (data_offset > 0) ? data_offset : 0);
64ef8957
FB		 772 if (!elements) {
773 if (data_offset >= 0)
774 kmem_cache_free(qeth_core_header_cache, hdr);
775 goto tx_drop;
f61a0d05 776 }
4a71df50 777
51aa165c 778 if (card->info.type != QETH_CARD_TYPE_IQD) {
d4ae1f5e 779 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
51aa165c
FB		 780 sizeof(struct qeth_hdr_layer2)))
781 goto tx_drop;
4a71df50 782 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 783 elements);
51aa165c 784 } else
4a71df50 785 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 786 elements, data_offset, hd_len);
4a71df50
FB		 787 if (!rc) {
788 card->stats.tx_packets++;
789 card->stats.tx_bytes += tx_bytes;
d52aec97
EC		 790 if (card->options.performance_stats) {
791 nr_frags = skb_shinfo(new_skb)->nr_frags;
792 if (nr_frags) {
793 card->perf_stats.sg_skbs_sent++;
794 /* nr_frags + skb->data */
795 card->perf_stats.sg_frags_sent += nr_frags + 1;
796 }
797 }
4a71df50
FB		 798 if (new_skb != skb)
799 dev_kfree_skb_any(skb);
ec634fe3 800 rc = NETDEV_TX_OK;
4a71df50 801 } else {
683d718a
FB		 802 if (data_offset >= 0)
803 kmem_cache_free(qeth_core_header_cache, hdr);
804
4a71df50
FB		 805 if (rc == -EBUSY) {
806 if (new_skb != skb)
807 dev_kfree_skb_any(new_skb);
808 return NETDEV_TX_BUSY;
809 } else
810 goto tx_drop;
811 }
812
813 netif_wake_queue(dev);
814 if (card->options.performance_stats)
815 card->perf_stats.outbound_time += qeth_get_micros() -
816 card->perf_stats.outbound_start_time;
817 return rc;
818
819tx_drop:
820 card->stats.tx_dropped++;
821 card->stats.tx_errors++;
822 if ((new_skb != skb) && new_skb)
823 dev_kfree_skb_any(new_skb);
824 dev_kfree_skb_any(skb);
d0ec0f54 825 netif_wake_queue(dev);
4a71df50
FB		 826 return NETDEV_TX_OK;
827}
828
39423440 829static int __qeth_l2_open(struct net_device *dev)
4a71df50 830{
509e2562 831 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 832 int rc = 0;
4a71df50 833
847a50fd 834 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 835 if (card->state == CARD_STATE_UP)
836 return rc;
4a71df50
FB		 837 if (card->state != CARD_STATE_SOFTSETUP)
838 return -ENODEV;
839
840 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
841 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
847a50fd 842 QETH_CARD_TEXT(card, 4, "nomacadr");
4a71df50
FB		 843 return -EPERM;
844 }
845 card->data.state = CH_STATE_UP;
846 card->state = CARD_STATE_UP;
4a71df50
FB		 847 netif_start_queue(dev);
848
a1c3ed4c
FB		 849 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
850 napi_enable(&card->napi);
851 napi_schedule(&card->napi);
852 } else
853 rc = -EIO;
854 return rc;
4a71df50
FB		 855}
856
39423440
UB		 857static int qeth_l2_open(struct net_device *dev)
858{
859 struct qeth_card *card = dev->ml_priv;
860
861 QETH_CARD_TEXT(card, 5, "qethope_");
862 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
863 QETH_CARD_TEXT(card, 3, "openREC");
864 return -ERESTARTSYS;
865 }
866 return __qeth_l2_open(dev);
867}
868
4a71df50
FB		 869static int qeth_l2_stop(struct net_device *dev)
870{
509e2562 871 struct qeth_card *card = dev->ml_priv;
4a71df50 872
847a50fd 873 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 874 netif_tx_disable(dev);
a1c3ed4c 875 if (card->state == CARD_STATE_UP) {
4a71df50 876 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 877 napi_disable(&card->napi);
878 }
4a71df50
FB		 879 return 0;
880}
881
882static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
883{
884 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
885
b4d72c08 886 qeth_l2_create_device_attributes(&gdev->dev);
4a71df50 887 INIT_LIST_HEAD(&card->vid_list);
fe5c8028 888 hash_init(card->mac_htable);
4a71df50 889 card->options.layer2 = 1;
1da74b1c 890 card->info.hwtrap = 0;
4a71df50
FB		 891 return 0;
892}
893
894static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
895{
896 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
897
b4d72c08 898 qeth_l2_remove_device_attributes(&cgdev->dev);
f2148565 899 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 900 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
901
70919e23 902 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 903 qeth_l2_set_offline(cgdev);
4a71df50
FB		 904
905 if (card->dev) {
7831b4ff 906 netif_napi_del(&card->napi);
4a71df50
FB		 907 unregister_netdev(card->dev);
908 card->dev = NULL;
909 }
4a71df50
FB		 910 return;
911}
912
0fc0b732 913static const struct ethtool_ops qeth_l2_ethtool_ops = {
4a71df50 914 .get_link = ethtool_op_get_link,
4a71df50
FB		 915 .get_strings = qeth_core_get_strings,
916 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 917 .get_sset_count = qeth_core_get_sset_count,
4a71df50 918 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 919 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 920};
921
0fc0b732 922static const struct ethtool_ops qeth_l2_osn_ops = {
4a71df50
FB		 923 .get_strings = qeth_core_get_strings,
924 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 925 .get_sset_count = qeth_core_get_sset_count,
4a71df50
FB		 926 .get_drvinfo = qeth_core_get_drvinfo,
927};
928
3d58cefd 929static const struct net_device_ops qeth_l2_netdev_ops = {
8403b13c
FB		 930 .ndo_open = qeth_l2_open,
931 .ndo_stop = qeth_l2_stop,
932 .ndo_get_stats = qeth_get_stats,
933 .ndo_start_xmit = qeth_l2_hard_start_xmit,
934 .ndo_validate_addr = eth_validate_addr,
fe5c8028 935 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
942d6984 936 .ndo_do_ioctl = qeth_do_ioctl,
8403b13c
FB		 937 .ndo_set_mac_address = qeth_l2_set_mac_address,
938 .ndo_change_mtu = qeth_change_mtu,
939 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
940 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
941 .ndo_tx_timeout = qeth_tx_timeout,
8f43fb00
TR		 942 .ndo_fix_features = qeth_fix_features,
943 .ndo_set_features = qeth_set_features
8403b13c
FB		 944};
945
4a71df50
FB		 946static int qeth_l2_setup_netdev(struct qeth_card *card)
947{
948 switch (card->info.type) {
4a71df50 949 case QETH_CARD_TYPE_IQD:
c835a677
TG		 950 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
951 ether_setup);
4a71df50
FB		 952 break;
953 case QETH_CARD_TYPE_OSN:
c835a677
TG		 954 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
955 ether_setup);
4a71df50
FB		 956 card->dev->flags |= IFF_NOARP;
957 break;
958 default:
959 card->dev = alloc_etherdev(0);
960 }
961
962 if (!card->dev)
963 return -ENODEV;
964
509e2562 965 card->dev->ml_priv = card;
4a71df50 966 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 967 card->dev->mtu = card->info.initial_mtu;
46b3ef4c
JW		 968 card->dev->min_mtu = 64;
969 card->dev->max_mtu = ETH_MAX_MTU;
8403b13c 970 card->dev->netdev_ops = &qeth_l2_netdev_ops;
7ad24ea4
WK		 971 card->dev->ethtool_ops =
972 (card->info.type != QETH_CARD_TYPE_OSN) ?
973 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
f646968f 974 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4d7def2a 975 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
8f43fb00 976 card->dev->hw_features = NETIF_F_SG;
9bdc4411 977 card->dev->vlan_features = NETIF_F_SG;
8f43fb00 978 /* OSA 3S and earlier has no RX/TX support */
9bdc4411 979 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) {
8f43fb00 980 card->dev->hw_features |= NETIF_F_IP_CSUM;
9bdc4411
HW		 981 card->dev->vlan_features |= NETIF_F_IP_CSUM;
982 }
983 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
8f43fb00 984 card->dev->hw_features |= NETIF_F_RXCSUM;
9bdc4411
HW		 985 card->dev->vlan_features |= NETIF_F_RXCSUM;
986 }
4d7def2a 987 }
4a71df50
FB		 988 card->info.broadcast_capable = 1;
989 qeth_l2_request_initial_mac(card);
d52aec97
EC		 990 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
991 PAGE_SIZE;
4a71df50 992 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
d73ef324 993 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT);
e5ebe632 994 netif_carrier_off(card->dev);
4a71df50
FB		 995 return register_netdev(card->dev);
996}
997
4d7def2a
TR		 998static int qeth_l2_start_ipassists(struct qeth_card *card)
999{
1000 /* configure isolation level */
1001 if (qeth_set_access_ctrl_online(card, 0))
1002 return -ENODEV;
4d7def2a
TR		 1003 return 0;
1004}
1005
4a71df50
FB		 1006static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1007{
1008 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1009 int rc = 0;
1010 enum qeth_card_states recover_flag;
1011
9dc48ccc 1012 mutex_lock(&card->discipline_mutex);
c4949f07 1013 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1014 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1015 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 1016
4a71df50 1017 recover_flag = card->state;
4a71df50
FB		 1018 rc = qeth_core_hardsetup_card(card);
1019 if (rc) {
1aec42bc 1020 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
aa909224 1021 rc = -ENODEV;
4a71df50
FB		 1022 goto out_remove;
1023 }
c044dc21
EC		 1024 qeth_bridgeport_query_support(card);
1025 if (card->options.sbp.supported_funcs)
1026 dev_info(&card->gdev->dev,
9c23f4da 1027 "The device represents a Bridge Capable Port\n");
395672e0 1028 qeth_trace_features(card);
4a71df50 1029
aa909224
UB		 1030 if (!card->dev && qeth_l2_setup_netdev(card)) {
1031 rc = -ENODEV;
4a71df50 1032 goto out_remove;
aa909224 1033 }
4a71df50
FB		 1034
1035 if (card->info.type != QETH_CARD_TYPE_OSN)
1036 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1037
1da74b1c
FB		 1038 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1039 if (card->info.hwtrap &&
1040 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1041 card->info.hwtrap = 0;
1042 } else
1043 card->info.hwtrap = 0;
1044
b4d72c08
EC		 1045 qeth_l2_setup_bridgeport_attrs(card);
1046
4a71df50 1047 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 1048 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 1049 qeth_print_status_message(card);
1050
1051 /* softsetup */
d11ba0c4 1052 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50 1053
5113fec0 1054 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
0f54761d 1055 (card->info.type == QETH_CARD_TYPE_OSX)) {
8f43fb00
TR		 1056 rc = qeth_l2_start_ipassists(card);
1057 if (rc)
0f54761d 1058 goto out_remove;
0f54761d 1059 }
5113fec0
UB		 1060
1061 if (card->info.type != QETH_CARD_TYPE_OSN &&
1062 card->info.type != QETH_CARD_TYPE_OSM)
70919e23 1063 qeth_l2_process_vlans(card);
4a71df50
FB		 1064
1065 netif_tx_disable(card->dev);
1066
1067 rc = qeth_init_qdio_queues(card);
1068 if (rc) {
d11ba0c4 1069 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 1070 rc = -ENODEV;
4a71df50
FB		 1071 goto out_remove;
1072 }
1073 card->state = CARD_STATE_SOFTSETUP;
2b6203bb
UB		 1074 if (card->lan_online)
1075 netif_carrier_on(card->dev);
1076 else
1077 netif_carrier_off(card->dev);
4a71df50
FB		 1078
1079 qeth_set_allowed_threads(card, 0xffffffff, 0);
1080 if (recover_flag == CARD_STATE_RECOVER) {
1081 if (recovery_mode &&
1082 card->info.type != QETH_CARD_TYPE_OSN) {
39423440 1083 __qeth_l2_open(card->dev);
4a71df50
FB		 1084 } else {
1085 rtnl_lock();
1086 dev_open(card->dev);
1087 rtnl_unlock();
1088 }
1089 /* this also sets saved unicast addresses */
fe5c8028 1090 qeth_l2_set_rx_mode(card->dev);
e830baa9
HW		 1091 rtnl_lock();
1092 qeth_recover_features(card->dev);
1093 rtnl_unlock();
4a71df50
FB		 1094 }
1095 /* let user_space know that device is online */
1096 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1097 mutex_unlock(&card->conf_mutex);
9dc48ccc 1098 mutex_unlock(&card->discipline_mutex);
4a71df50 1099 return 0;
aa909224 1100
4a71df50 1101out_remove:
4a71df50
FB		 1102 qeth_l2_stop_card(card, 0);
1103 ccw_device_set_offline(CARD_DDEV(card));
1104 ccw_device_set_offline(CARD_WDEV(card));
1105 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 1106 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1107 if (recover_flag == CARD_STATE_RECOVER)
1108 card->state = CARD_STATE_RECOVER;
1109 else
1110 card->state = CARD_STATE_DOWN;
c4949f07 1111 mutex_unlock(&card->conf_mutex);
9dc48ccc 1112 mutex_unlock(&card->discipline_mutex);
aa909224 1113 return rc;
4a71df50
FB		 1114}
1115
1116static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1117{
1118 return __qeth_l2_set_online(gdev, 0);
1119}
1120
1121static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1122 int recovery_mode)
1123{
1124 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1125 int rc = 0, rc2 = 0, rc3 = 0;
1126 enum qeth_card_states recover_flag;
1127
9dc48ccc 1128 mutex_lock(&card->discipline_mutex);
c4949f07 1129 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1130 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1131 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 1132
1133 if (card->dev && netif_carrier_ok(card->dev))
1134 netif_carrier_off(card->dev);
1135 recover_flag = card->state;
1da74b1c
FB		 1136 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1137 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1138 card->info.hwtrap = 1;
1139 }
0f5623c9 1140 qeth_l2_stop_card(card, recovery_mode);
4a71df50
FB		 1141 rc = ccw_device_set_offline(CARD_DDEV(card));
1142 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1143 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1144 if (!rc)
1145 rc = (rc2) ? rc2 : rc3;
1146 if (rc)
d11ba0c4 1147 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 1148 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1149 if (recover_flag == CARD_STATE_UP)
1150 card->state = CARD_STATE_RECOVER;
1151 /* let user_space know that device is offline */
1152 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1153 mutex_unlock(&card->conf_mutex);
9dc48ccc 1154 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 1155 return 0;
1156}
1157
1158static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1159{
1160 return __qeth_l2_set_offline(cgdev, 0);
1161}
1162
1163static int qeth_l2_recover(void *ptr)
1164{
1165 struct qeth_card *card;
1166 int rc = 0;
1167
1168 card = (struct qeth_card *) ptr;
847a50fd 1169 QETH_CARD_TEXT(card, 2, "recover1");
4a71df50
FB		 1170 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1171 return 0;
847a50fd 1172 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 1173 dev_warn(&card->gdev->dev,
1174 "A recovery process has been started for the device\n");
65d8013c 1175 qeth_set_recovery_task(card);
4a71df50
FB		 1176 __qeth_l2_set_offline(card->gdev, 1);
1177 rc = __qeth_l2_set_online(card->gdev, 1);
4a71df50 1178 if (!rc)
74eacdb9
FB		 1179 dev_info(&card->gdev->dev,
1180 "Device successfully recovered!\n");
28a7e4c9 1181 else {
0f54761d
SR		 1182 qeth_close_dev(card);
1183 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 1184 "failed to recover an error on the device\n");
28a7e4c9 1185 }
65d8013c 1186 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 1187 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1188 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 1189 return 0;
1190}
1191
1192static int __init qeth_l2_init(void)
1193{
74eacdb9 1194 pr_info("register layer 2 discipline\n");
4a71df50
FB		 1195 return 0;
1196}
1197
1198static void __exit qeth_l2_exit(void)
1199{
74eacdb9 1200 pr_info("unregister layer 2 discipline\n");
4a71df50
FB		 1201}
1202
bbcfcdc8
FB		 1203static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1204{
1205 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1206
1207 if (card->dev)
1208 netif_device_detach(card->dev);
1209 qeth_set_allowed_threads(card, 0, 1);
1210 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1211 if (gdev->state == CCWGROUP_OFFLINE)
1212 return 0;
1213 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 1214 if (card->info.hwtrap)
1215 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 1216 __qeth_l2_set_offline(card->gdev, 1);
1217 } else
1218 __qeth_l2_set_offline(card->gdev, 0);
1219 return 0;
1220}
1221
1222static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1223{
1224 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1225 int rc = 0;
1226
1227 if (gdev->state == CCWGROUP_OFFLINE)
1228 goto out;
1229
1230 if (card->state == CARD_STATE_RECOVER) {
1231 rc = __qeth_l2_set_online(card->gdev, 1);
1232 if (rc) {
869da90b
UB		 1233 rtnl_lock();
1234 dev_close(card->dev);
1235 rtnl_unlock();
bbcfcdc8
FB		 1236 }
1237 } else
1238 rc = __qeth_l2_set_online(card->gdev, 0);
1239out:
1240 qeth_set_allowed_threads(card, 0xffffffff, 0);
1241 if (card->dev)
1242 netif_device_attach(card->dev);
1243 if (rc)
1244 dev_warn(&card->gdev->dev, "The qeth device driver "
1245 "failed to recover an error on the device\n");
1246 return rc;
1247}
1248
c044dc21
EC		 1249/* Returns zero if the command is successfully "consumed" */
1250static int qeth_l2_control_event(struct qeth_card *card,
1251 struct qeth_ipa_cmd *cmd)
1252{
1253 switch (cmd->hdr.command) {
9c23f4da
EC		 1254 case IPA_CMD_SETBRIDGEPORT_OSA:
1255 case IPA_CMD_SETBRIDGEPORT_IQD:
c044dc21
EC		 1256 if (cmd->data.sbp.hdr.command_code ==
1257 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1258 qeth_bridge_state_change(card, cmd);
1259 return 0;
1260 } else
1261 return 1;
1262 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1263 qeth_bridge_host_event(card, cmd);
1264 return 0;
1265 default:
1266 return 1;
1267 }
1268}
1269
c041f2d4
SO		 1270struct qeth_discipline qeth_l2_discipline = {
1271 .start_poll = qeth_qdio_start_poll,
1272 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1273 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
d73ef324 1274 .process_rx_buffer = qeth_l2_process_inbound_buffer,
c041f2d4
SO		 1275 .recover = qeth_l2_recover,
1276 .setup = qeth_l2_probe_device,
4a71df50
FB		 1277 .remove = qeth_l2_remove_device,
1278 .set_online = qeth_l2_set_online,
1279 .set_offline = qeth_l2_set_offline,
bbcfcdc8
FB		 1280 .freeze = qeth_l2_pm_suspend,
1281 .thaw = qeth_l2_pm_resume,
1282 .restore = qeth_l2_pm_resume,
942d6984 1283 .do_ioctl = NULL,
c044dc21 1284 .control_event_handler = qeth_l2_control_event,
4a71df50 1285};
c041f2d4 1286EXPORT_SYMBOL_GPL(qeth_l2_discipline);
4a71df50
FB		 1287
1288static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1289 struct qeth_cmd_buffer *iob)
1290{
1291 unsigned long flags;
1292 int rc = 0;
1293
847a50fd 1294 QETH_CARD_TEXT(card, 5, "osndctrd");
4a71df50
FB		 1295
1296 wait_event(card->wait_q,
1297 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1298 qeth_prepare_control_data(card, len, iob);
847a50fd 1299 QETH_CARD_TEXT(card, 6, "osnoirqp");
4a71df50
FB		 1300 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1301 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1302 (addr_t) iob, 0, 0);
1303 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1304 if (rc) {
14cc21b6 1305 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4a71df50 1306 "ccw_device_start rc = %i\n", rc);
847a50fd 1307 QETH_CARD_TEXT_(card, 2, " err%d", rc);
4a71df50
FB		 1308 qeth_release_buffer(iob->channel, iob);
1309 atomic_set(&card->write.irq_pending, 0);
1310 wake_up(&card->wait_q);
1311 }
1312 return rc;
1313}
1314
1315static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1316 struct qeth_cmd_buffer *iob, int data_len)
1317{
1318 u16 s1, s2;
1319
847a50fd 1320 QETH_CARD_TEXT(card, 4, "osndipa");
4a71df50
FB		 1321
1322 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1323 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1324 s2 = (u16)data_len;
1325 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1326 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1327 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1328 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1329 return qeth_osn_send_control_data(card, s1, iob);
1330}
1331
1332int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1333{
1334 struct qeth_cmd_buffer *iob;
1335 struct qeth_card *card;
1336 int rc;
1337
4a71df50
FB		 1338 if (!dev)
1339 return -ENODEV;
509e2562 1340 card = dev->ml_priv;
4a71df50
FB		 1341 if (!card)
1342 return -ENODEV;
847a50fd 1343 QETH_CARD_TEXT(card, 2, "osnsdmc");
c3521254 1344 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 1345 return -ENODEV;
1346 iob = qeth_wait_for_buffer(&card->write);
1347 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1348 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1349 return rc;
1350}
1351EXPORT_SYMBOL(qeth_osn_assist);
1352
1353int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1354 int (*assist_cb)(struct net_device *, void *),
1355 int (*data_cb)(struct sk_buff *))
1356{
1357 struct qeth_card *card;
1358
4a71df50
FB		 1359 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1360 if (*dev == NULL)
1361 return -ENODEV;
509e2562 1362 card = (*dev)->ml_priv;
4a71df50
FB		 1363 if (!card)
1364 return -ENODEV;
847a50fd 1365 QETH_CARD_TEXT(card, 2, "osnreg");
4a71df50
FB		 1366 if ((assist_cb == NULL) || (data_cb == NULL))
1367 return -EINVAL;
1368 card->osn_info.assist_cb = assist_cb;
1369 card->osn_info.data_cb = data_cb;
1370 return 0;
1371}
1372EXPORT_SYMBOL(qeth_osn_register);
1373
1374void qeth_osn_deregister(struct net_device *dev)
1375{
1376 struct qeth_card *card;
1377
4a71df50
FB		 1378 if (!dev)
1379 return;
509e2562 1380 card = dev->ml_priv;
4a71df50
FB		 1381 if (!card)
1382 return;
847a50fd 1383 QETH_CARD_TEXT(card, 2, "osndereg");
4a71df50
FB		 1384 card->osn_info.assist_cb = NULL;
1385 card->osn_info.data_cb = NULL;
1386 return;
1387}
1388EXPORT_SYMBOL(qeth_osn_deregister);
1389
b4d72c08
EC		 1390/* SETBRIDGEPORT support, async notifications */
1391
9f48b9db
EC		 1392enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1393
1394/**
1395 * qeth_bridge_emit_host_event() - bridgeport address change notification
1396 * @card: qeth_card structure pointer, for udev events.
1397 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1398 * and reset token and addr_lnid are unused and may be NULL.
1399 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1400 * object, 0 - addition of an object.
1401 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1402 * @token: "network token" structure identifying physical address of the port.
1403 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1404 *
1405 * This function is called when registrations and deregistrations are
1406 * reported by the hardware, and also when notifications are enabled -
1407 * for all currently registered addresses.
1408 */
1409static void qeth_bridge_emit_host_event(struct qeth_card *card,
1410 enum qeth_an_event_type evtype,
1411 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1412{
1413 char str[7][32];
1414 char *env[8];
1415 int i = 0;
1416
1417 switch (evtype) {
1418 case anev_reg_unreg:
1419 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1420 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1421 ? "deregister" : "register");
1422 env[i] = str[i]; i++;
1423 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1424 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1425 addr_lnid->lnid);
1426 env[i] = str[i]; i++;
1427 }
1428 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
9846e70b 1429 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
4d7def2a 1430 addr_lnid->mac);
9f48b9db
EC		 1431 env[i] = str[i]; i++;
1432 }
1433 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1434 token->cssid, token->ssid, token->devnum);
1435 env[i] = str[i]; i++;
1436 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1437 env[i] = str[i]; i++;
1438 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1439 token->chpid);
1440 env[i] = str[i]; i++;
1441 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1442 env[i] = str[i]; i++;
1443 break;
1444 case anev_abort:
1445 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1446 env[i] = str[i]; i++;
1447 break;
1448 case anev_reset:
1449 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1450 env[i] = str[i]; i++;
1451 break;
1452 }
1453 env[i] = NULL;
1454 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1455}
1456
b4d72c08
EC		 1457struct qeth_bridge_state_data {
1458 struct work_struct worker;
1459 struct qeth_card *card;
1460 struct qeth_sbp_state_change qports;
1461};
1462
1463static void qeth_bridge_state_change_worker(struct work_struct *work)
1464{
1465 struct qeth_bridge_state_data *data =
1466 container_of(work, struct qeth_bridge_state_data, worker);
1467 /* We are only interested in the first entry - local port */
1468 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1469 char env_locrem[32];
1470 char env_role[32];
1471 char env_state[32];
1472 char *env[] = {
1473 env_locrem,
1474 env_role,
1475 env_state,
1476 NULL
1477 };
1478
1479 /* Role should not change by itself, but if it did, */
1480 /* information from the hardware is authoritative. */
1481 mutex_lock(&data->card->conf_mutex);
1482 data->card->options.sbp.role = entry->role;
1483 mutex_unlock(&data->card->conf_mutex);
1484
1485 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1486 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1487 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1488 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1489 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1490 "<INVALID>");
1491 snprintf(env_state, sizeof(env_state), "STATE=%s",
1492 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1493 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1494 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1495 "<INVALID>");
1496 kobject_uevent_env(&data->card->gdev->dev.kobj,
1497 KOBJ_CHANGE, env);
1498 kfree(data);
1499}
1500
c044dc21
EC		 1501static void qeth_bridge_state_change(struct qeth_card *card,
1502 struct qeth_ipa_cmd *cmd)
b4d72c08
EC		 1503{
1504 struct qeth_sbp_state_change *qports =
1505 &cmd->data.sbp.data.state_change;
1506 struct qeth_bridge_state_data *data;
1507 int extrasize;
1508
1509 QETH_CARD_TEXT(card, 2, "brstchng");
1510 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
8a593148 1511 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
b4d72c08
EC		 1512 return;
1513 }
1514 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1515 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1516 GFP_ATOMIC);
1517 if (!data) {
1518 QETH_CARD_TEXT(card, 2, "BPSalloc");
1519 return;
1520 }
1521 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1522 data->card = card;
1523 memcpy(&data->qports, qports,
1524 sizeof(struct qeth_sbp_state_change) + extrasize);
1525 queue_work(qeth_wq, &data->worker);
1526}
b4d72c08 1527
9f48b9db
EC		 1528struct qeth_bridge_host_data {
1529 struct work_struct worker;
1530 struct qeth_card *card;
1531 struct qeth_ipacmd_addr_change hostevs;
1532};
1533
1534static void qeth_bridge_host_event_worker(struct work_struct *work)
1535{
1536 struct qeth_bridge_host_data *data =
1537 container_of(work, struct qeth_bridge_host_data, worker);
1538 int i;
1539
1540 if (data->hostevs.lost_event_mask) {
1541 dev_info(&data->card->gdev->dev,
9c23f4da 1542"Address notification from the Bridge Port stopped %s (%s)\n",
9f48b9db
EC		 1543 data->card->dev->name,
1544 (data->hostevs.lost_event_mask == 0x01)
1545 ? "Overflow"
1546 : (data->hostevs.lost_event_mask == 0x02)
1547 ? "Bridge port state change"
1548 : "Unknown reason");
1549 mutex_lock(&data->card->conf_mutex);
1550 data->card->options.sbp.hostnotification = 0;
1551 mutex_unlock(&data->card->conf_mutex);
1552 qeth_bridge_emit_host_event(data->card, anev_abort,
1553 0, NULL, NULL);
1554 } else
1555 for (i = 0; i < data->hostevs.num_entries; i++) {
1556 struct qeth_ipacmd_addr_change_entry *entry =
1557 &data->hostevs.entry[i];
1558 qeth_bridge_emit_host_event(data->card,
1559 anev_reg_unreg,
1560 entry->change_code,
1561 &entry->token, &entry->addr_lnid);
1562 }
1563 kfree(data);
1564}
1565
c044dc21
EC		 1566static void qeth_bridge_host_event(struct qeth_card *card,
1567 struct qeth_ipa_cmd *cmd)
9f48b9db
EC		 1568{
1569 struct qeth_ipacmd_addr_change *hostevs =
1570 &cmd->data.addrchange;
1571 struct qeth_bridge_host_data *data;
1572 int extrasize;
1573
1574 QETH_CARD_TEXT(card, 2, "brhostev");
1575 if (cmd->hdr.return_code != 0x0000) {
1576 if (cmd->hdr.return_code == 0x0010) {
1577 if (hostevs->lost_event_mask == 0x00)
1578 hostevs->lost_event_mask = 0xff;
1579 } else {
1580 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1581 cmd->hdr.return_code);
1582 return;
1583 }
1584 }
1585 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1586 hostevs->num_entries;
1587 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1588 GFP_ATOMIC);
1589 if (!data) {
1590 QETH_CARD_TEXT(card, 2, "BPHalloc");
1591 return;
1592 }
1593 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1594 data->card = card;
1595 memcpy(&data->hostevs, hostevs,
1596 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1597 queue_work(qeth_wq, &data->worker);
1598}
9f48b9db 1599
b4d72c08
EC		 1600/* SETBRIDGEPORT support; sending commands */
1601
1602struct _qeth_sbp_cbctl {
1603 u16 ipa_rc;
1604 u16 cmd_rc;
1605 union {
1606 u32 supported;
1607 struct {
1608 enum qeth_sbp_roles *role;
1609 enum qeth_sbp_states *state;
1610 } qports;
1611 } data;
1612};
1613
1614/**
1615 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1616 * @card: qeth_card structure pointer, for debug messages.
1617 * @cbctl: state structure with hardware return codes.
1618 * @setcmd: IPA command code
1619 *
1620 * Returns negative errno-compatible error indication or 0 on success.
1621 */
1622static int qeth_bridgeport_makerc(struct qeth_card *card,
1623 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1624{
1625 int rc;
9c23f4da 1626 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
b4d72c08 1627
9c23f4da
EC		 1628 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1629 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
b4d72c08
EC		 1630 switch (cbctl->cmd_rc) {
1631 case 0x0000:
1632 rc = 0;
1633 break;
9c23f4da 1634 case 0x2B04:
b4d72c08 1635 case 0x0004:
ffb95251 1636 rc = -EOPNOTSUPP;
b4d72c08 1637 break;
9c23f4da 1638 case 0x2B0C:
b4d72c08
EC		 1639 case 0x000C: /* Not configured as bridge Port */
1640 rc = -ENODEV; /* maybe not the best code here? */
1641 dev_err(&card->gdev->dev,
9c23f4da 1642 "The device is not configured as a Bridge Port\n");
b4d72c08 1643 break;
1b05cf62
EC		 1644 case 0x2B10:
1645 case 0x0010: /* OS mismatch */
1646 rc = -EPERM;
1647 dev_err(&card->gdev->dev,
1648 "A Bridge Port is already configured by a different operating system\n");
1649 break;
9c23f4da 1650 case 0x2B14:
b4d72c08
EC		 1651 case 0x0014: /* Another device is Primary */
1652 switch (setcmd) {
1653 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1654 rc = -EEXIST;
1655 dev_err(&card->gdev->dev,
9c23f4da 1656 "The LAN already has a primary Bridge Port\n");
b4d72c08
EC		 1657 break;
1658 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1659 rc = -EBUSY;
1660 dev_err(&card->gdev->dev,
9c23f4da 1661 "The device is already a primary Bridge Port\n");
b4d72c08
EC		 1662 break;
1663 default:
1664 rc = -EIO;
1665 }
1666 break;
9c23f4da 1667 case 0x2B18:
b4d72c08
EC		 1668 case 0x0018: /* This device is currently Secondary */
1669 rc = -EBUSY;
1670 dev_err(&card->gdev->dev,
9c23f4da 1671 "The device is already a secondary Bridge Port\n");
b4d72c08 1672 break;
9c23f4da 1673 case 0x2B1C:
b4d72c08
EC		 1674 case 0x001C: /* Limit for Secondary devices reached */
1675 rc = -EEXIST;
1676 dev_err(&card->gdev->dev,
9c23f4da 1677 "The LAN cannot have more secondary Bridge Ports\n");
b4d72c08 1678 break;
9c23f4da 1679 case 0x2B24:
b4d72c08
EC		 1680 case 0x0024: /* This device is currently Primary */
1681 rc = -EBUSY;
1682 dev_err(&card->gdev->dev,
9c23f4da 1683 "The device is already a primary Bridge Port\n");
b4d72c08 1684 break;
9c23f4da 1685 case 0x2B20:
b4d72c08
EC		 1686 case 0x0020: /* Not authorized by zManager */
1687 rc = -EACCES;
1688 dev_err(&card->gdev->dev,
9c23f4da 1689 "The device is not authorized to be a Bridge Port\n");
b4d72c08
EC		 1690 break;
1691 default:
1692 rc = -EIO;
1693 }
9c23f4da
EC		 1694 else
1695 switch (cbctl->ipa_rc) {
1696 case IPA_RC_NOTSUPP:
ffb95251 1697 rc = -EOPNOTSUPP;
9c23f4da
EC		 1698 break;
1699 case IPA_RC_UNSUPPORTED_COMMAND:
ffb95251 1700 rc = -EOPNOTSUPP;
9c23f4da
EC		 1701 break;
1702 default:
1703 rc = -EIO;
1704 }
1705
b4d72c08
EC		 1706 if (rc) {
1707 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1708 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1709 }
1710 return rc;
1711}
1712
9c23f4da
EC		 1713static inline int ipa_cmd_sbp(struct qeth_card *card)
1714{
1715 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1716 IPA_CMD_SETBRIDGEPORT_IQD :
1717 IPA_CMD_SETBRIDGEPORT_OSA;
1718}
1719
b4d72c08
EC		 1720static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1721 struct qeth_reply *reply, unsigned long data)
1722{
1723 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1724 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1725 QETH_CARD_TEXT(card, 2, "brqsupcb");
1726 cbctl->ipa_rc = cmd->hdr.return_code;
1727 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1728 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1729 cbctl->data.supported =
1730 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1731 } else {
1732 cbctl->data.supported = 0;
1733 }
1734 return 0;
1735}
1736
1737/**
1738 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1739 * @card: qeth_card structure pointer.
1740 *
1741 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1742 * strucutre: card->options.sbp.supported_funcs.
1743 */
c044dc21 1744static void qeth_bridgeport_query_support(struct qeth_card *card)
b4d72c08
EC		 1745{
1746 struct qeth_cmd_buffer *iob;
1747 struct qeth_ipa_cmd *cmd;
1748 struct _qeth_sbp_cbctl cbctl;
1749
1750 QETH_CARD_TEXT(card, 2, "brqsuppo");
9c23f4da 1751 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1752 if (!iob)
1753 return;
b4d72c08
EC		 1754 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1755 cmd->data.sbp.hdr.cmdlength =
1756 sizeof(struct qeth_ipacmd_sbp_hdr) +
1757 sizeof(struct qeth_sbp_query_cmds_supp);
1758 cmd->data.sbp.hdr.command_code =
1759 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1760 cmd->data.sbp.hdr.used_total = 1;
1761 cmd->data.sbp.hdr.seq_no = 1;
1762 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1763 (void *)&cbctl) ||
1764 qeth_bridgeport_makerc(card, &cbctl,
1765 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1766 /* non-zero makerc signifies failure, and produce messages */
1767 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1768 return;
1769 }
1770 card->options.sbp.supported_funcs = cbctl.data.supported;
1771}
b4d72c08
EC		 1772
1773static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1774 struct qeth_reply *reply, unsigned long data)
1775{
1776 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1777 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1778 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1779
1780 QETH_CARD_TEXT(card, 2, "brqprtcb");
1781 cbctl->ipa_rc = cmd->hdr.return_code;
1782 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1783 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1784 return 0;
1785 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1786 cbctl->cmd_rc = 0xffff;
1787 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1788 return 0;
1789 }
1790 /* first entry contains the state of the local port */
1791 if (qports->num_entries > 0) {
1792 if (cbctl->data.qports.role)
1793 *cbctl->data.qports.role = qports->entry[0].role;
1794 if (cbctl->data.qports.state)
1795 *cbctl->data.qports.state = qports->entry[0].state;
1796 }
1797 return 0;
1798}
1799
1800/**
1801 * qeth_bridgeport_query_ports() - query local bridgeport status.
1802 * @card: qeth_card structure pointer.
1803 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1804 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1805 *
1806 * Returns negative errno-compatible error indication or 0 on success.
1807 *
1808 * 'role' and 'state' are not updated in case of hardware operation failure.
1809 */
1810int qeth_bridgeport_query_ports(struct qeth_card *card,
1811 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1812{
1813 int rc = 0;
1814 struct qeth_cmd_buffer *iob;
1815 struct qeth_ipa_cmd *cmd;
1816 struct _qeth_sbp_cbctl cbctl = {
1817 .data = {
1818 .qports = {
1819 .role = role,
1820 .state = state,
1821 },
1822 },
1823 };
1824
1825 QETH_CARD_TEXT(card, 2, "brqports");
1826 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1827 return -EOPNOTSUPP;
9c23f4da 1828 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1829 if (!iob)
1830 return -ENOMEM;
b4d72c08
EC		 1831 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1832 cmd->data.sbp.hdr.cmdlength =
1833 sizeof(struct qeth_ipacmd_sbp_hdr);
1834 cmd->data.sbp.hdr.command_code =
1835 IPA_SBP_QUERY_BRIDGE_PORTS;
1836 cmd->data.sbp.hdr.used_total = 1;
1837 cmd->data.sbp.hdr.seq_no = 1;
1838 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1839 (void *)&cbctl);
c88394e7 1840 if (rc < 0)
b4d72c08 1841 return rc;
c88394e7 1842 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
b4d72c08
EC		 1843}
1844EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
1845
1846static int qeth_bridgeport_set_cb(struct qeth_card *card,
1847 struct qeth_reply *reply, unsigned long data)
1848{
1849 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1850 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1851 QETH_CARD_TEXT(card, 2, "brsetrcb");
1852 cbctl->ipa_rc = cmd->hdr.return_code;
1853 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1854 return 0;
1855}
1856
1857/**
1858 * qeth_bridgeport_setrole() - Assign primary role to the port.
1859 * @card: qeth_card structure pointer.
1860 * @role: Role to assign.
1861 *
1862 * Returns negative errno-compatible error indication or 0 on success.
1863 */
1864int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1865{
1866 int rc = 0;
1867 int cmdlength;
1868 struct qeth_cmd_buffer *iob;
1869 struct qeth_ipa_cmd *cmd;
1870 struct _qeth_sbp_cbctl cbctl;
1871 enum qeth_ipa_sbp_cmd setcmd;
1872
1873 QETH_CARD_TEXT(card, 2, "brsetrol");
1874 switch (role) {
1875 case QETH_SBP_ROLE_NONE:
1876 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1877 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1878 sizeof(struct qeth_sbp_reset_role);
1879 break;
1880 case QETH_SBP_ROLE_PRIMARY:
1881 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1882 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1883 sizeof(struct qeth_sbp_set_primary);
1884 break;
1885 case QETH_SBP_ROLE_SECONDARY:
1886 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1887 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1888 sizeof(struct qeth_sbp_set_secondary);
1889 break;
1890 default:
1891 return -EINVAL;
1892 }
1893 if (!(card->options.sbp.supported_funcs & setcmd))
1894 return -EOPNOTSUPP;
9c23f4da 1895 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1896 if (!iob)
1897 return -ENOMEM;
b4d72c08
EC		 1898 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1899 cmd->data.sbp.hdr.cmdlength = cmdlength;
1900 cmd->data.sbp.hdr.command_code = setcmd;
1901 cmd->data.sbp.hdr.used_total = 1;
1902 cmd->data.sbp.hdr.seq_no = 1;
1903 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1904 (void *)&cbctl);
c88394e7 1905 if (rc < 0)
b4d72c08 1906 return rc;
c88394e7 1907 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
b4d72c08
EC		 1908}
1909
9f48b9db
EC		 1910/**
1911 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1912 * @card: qeth_card structure pointer, for debug messages.
1913 *
1914 * Returns negative errno-compatible error indication or 0 on success.
1915 */
1916static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1917{
1918 int rc;
1919
1920 if (pnso_rc == 0)
1921 switch (response) {
1922 case 0x0001:
1923 rc = 0;
1924 break;
1925 case 0x0004:
1926 case 0x0100:
1927 case 0x0106:
ffb95251 1928 rc = -EOPNOTSUPP;
9f48b9db
EC		 1929 dev_err(&card->gdev->dev,
1930 "Setting address notification failed\n");
1931 break;
1932 case 0x0107:
1933 rc = -EAGAIN;
1934 break;
1935 default:
1936 rc = -EIO;
1937 }
1938 else
1939 rc = -EIO;
1940
1941 if (rc) {
1942 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1943 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1944 }
1945 return rc;
1946}
1947
1948static void qeth_bridgeport_an_set_cb(void *priv,
1949 enum qdio_brinfo_entry_type type, void *entry)
1950{
1951 struct qeth_card *card = (struct qeth_card *)priv;
1952 struct qdio_brinfo_entry_l2 *l2entry;
1953 u8 code;
1954
1955 if (type != l2_addr_lnid) {
1956 WARN_ON_ONCE(1);
1957 return;
1958 }
1959
1960 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1961 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1962 if (l2entry->addr_lnid.lnid)
1963 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1964 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1965 (struct net_if_token *)&l2entry->nit,
1966 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1967}
1968
1969/**
1970 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1971 * @card: qeth_card structure pointer.
1972 * @enable: 0 - disable, non-zero - enable notifications
1973 *
1974 * Returns negative errno-compatible error indication or 0 on success.
1975 *
1976 * On enable, emits a series of address notifications udev events for all
1977 * currently registered hosts.
1978 */
1979int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1980{
1981 int rc;
1982 u16 response;
1983 struct ccw_device *ddev;
1984 struct subchannel_id schid;
1985
1986 if (!card)
1987 return -EINVAL;
1988 if (!card->options.sbp.supported_funcs)
1989 return -EOPNOTSUPP;
1990 ddev = CARD_DDEV(card);
1991 ccw_device_get_schid(ddev, &schid);
1992
1993 if (enable) {
1994 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1995 rc = qdio_pnso_brinfo(schid, 1, &response,
1996 qeth_bridgeport_an_set_cb, card);
1997 } else
1998 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1999 return qeth_anset_makerc(card, rc, response);
2000}
2001EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2002
4a71df50
FB		 2003module_init(qeth_l2_init);
2004module_exit(qeth_l2_exit);
2005MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2006MODULE_DESCRIPTION("qeth layer 2 discipline");
2007MODULE_LICENSE("GPL");
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