projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / drivers / s390 / net / qeth_l2_main.c
CommitLineData
4a71df50 1/*
bbcfcdc8 2 * Copyright IBM Corp. 2007, 2009
4a71df50
FB		 3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
7 */
8
74eacdb9
FB		 9#define KMSG_COMPONENT "qeth"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
4a71df50
FB		 12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/string.h>
15#include <linux/errno.h>
16#include <linux/kernel.h>
5a0e3ad6 17#include <linux/slab.h>
4a71df50
FB		 18#include <linux/etherdevice.h>
19#include <linux/mii.h>
20#include <linux/ip.h>
ccffad25 21#include <linux/list.h>
4a71df50 22
4a71df50 23#include "qeth_core.h"
b4d72c08 24#include "qeth_l2.h"
4a71df50 25
4a71df50
FB		 26static int qeth_l2_set_offline(struct ccwgroup_device *);
27static int qeth_l2_stop(struct net_device *);
28static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
29static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
30 enum qeth_ipa_cmds,
31 int (*reply_cb) (struct qeth_card *,
32 struct qeth_reply*,
33 unsigned long));
34static void qeth_l2_set_multicast_list(struct net_device *);
35static int qeth_l2_recover(void *);
c044dc21
EC		 36static void qeth_bridgeport_query_support(struct qeth_card *card);
37static void qeth_bridge_state_change(struct qeth_card *card,
38 struct qeth_ipa_cmd *cmd);
39static void qeth_bridge_host_event(struct qeth_card *card,
40 struct qeth_ipa_cmd *cmd);
4a71df50
FB		 41
42static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
43{
509e2562 44 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 45 struct mii_ioctl_data *mii_data;
46 int rc = 0;
47
48 if (!card)
49 return -ENODEV;
50
51 if ((card->state != CARD_STATE_UP) &&
52 (card->state != CARD_STATE_SOFTSETUP))
53 return -ENODEV;
54
55 if (card->info.type == QETH_CARD_TYPE_OSN)
56 return -EPERM;
57
58 switch (cmd) {
59 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
60 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
61 break;
62 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 63 if ((card->info.type == QETH_CARD_TYPE_OSD ||
64 card->info.type == QETH_CARD_TYPE_OSM ||
65 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 66 !card->info.guestlan)
67 return 1;
68 return 0;
69 break;
70 case SIOCGMIIPHY:
71 mii_data = if_mii(rq);
72 mii_data->phy_id = 0;
73 break;
74 case SIOCGMIIREG:
75 mii_data = if_mii(rq);
76 if (mii_data->phy_id != 0)
77 rc = -EINVAL;
78 else
79 mii_data->val_out = qeth_mdio_read(dev,
80 mii_data->phy_id, mii_data->reg_num);
81 break;
c3ab96f3
FB		 82 case SIOC_QETH_QUERY_OAT:
83 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
84 break;
4a71df50
FB		 85 default:
86 rc = -EOPNOTSUPP;
87 }
88 if (rc)
847a50fd 89 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 90 return rc;
91}
92
93static int qeth_l2_verify_dev(struct net_device *dev)
94{
95 struct qeth_card *card;
96 unsigned long flags;
97 int rc = 0;
98
99 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
100 list_for_each_entry(card, &qeth_core_card_list.list, list) {
101 if (card->dev == dev) {
102 rc = QETH_REAL_CARD;
103 break;
104 }
105 }
106 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
107
108 return rc;
109}
110
111static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
112{
113 struct qeth_card *card;
114 struct net_device *ndev;
f06f6f32 115 __u16 temp_dev_no;
4a71df50 116 unsigned long flags;
f06f6f32 117 struct ccw_dev_id read_devid;
4a71df50
FB		 118
119 ndev = NULL;
120 memcpy(&temp_dev_no, read_dev_no, 2);
121 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
122 list_for_each_entry(card, &qeth_core_card_list.list, list) {
f06f6f32
CH		 123 ccw_device_get_id(CARD_RDEV(card), &read_devid);
124 if (read_devid.devno == temp_dev_no) {
4a71df50
FB		 125 ndev = card->dev;
126 break;
127 }
128 }
129 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
130 return ndev;
131}
132
133static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card,
134 struct qeth_reply *reply,
135 unsigned long data)
136{
137 struct qeth_ipa_cmd *cmd;
138 __u8 *mac;
139
847a50fd 140 QETH_CARD_TEXT(card, 2, "L2Sgmacb");
4a71df50
FB		 141 cmd = (struct qeth_ipa_cmd *) data;
142 mac = &cmd->data.setdelmac.mac[0];
143 /* MAC already registered, needed in couple/uncouple case */
0666eb06 144 if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) {
7c510e4b
JB		 145 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n",
146 mac, QETH_CARD_IFNAME(card));
4a71df50
FB		 147 cmd->hdr.return_code = 0;
148 }
149 if (cmd->hdr.return_code)
7c510e4b
JB		 150 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n",
151 mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code);
4a71df50
FB		 152 return 0;
153}
154
155static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
156{
847a50fd 157 QETH_CARD_TEXT(card, 2, "L2Sgmac");
4a71df50
FB		 158 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
159 qeth_l2_send_setgroupmac_cb);
160}
161
162static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card,
163 struct qeth_reply *reply,
164 unsigned long data)
165{
166 struct qeth_ipa_cmd *cmd;
167 __u8 *mac;
168
847a50fd 169 QETH_CARD_TEXT(card, 2, "L2Dgmacb");
4a71df50
FB		 170 cmd = (struct qeth_ipa_cmd *) data;
171 mac = &cmd->data.setdelmac.mac[0];
172 if (cmd->hdr.return_code)
7c510e4b
JB		 173 QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n",
174 mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code);
4a71df50
FB		 175 return 0;
176}
177
178static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
179{
847a50fd 180 QETH_CARD_TEXT(card, 2, "L2Dgmac");
4a71df50
FB		 181 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
182 qeth_l2_send_delgroupmac_cb);
183}
184
7db2266a 185static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac)
4a71df50
FB		 186{
187 struct qeth_mc_mac *mc;
7db2266a 188 int rc;
4a71df50
FB		 189
190 mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC);
191
14cc21b6 192 if (!mc)
4a71df50 193 return;
4a71df50
FB		 194
195 memcpy(mc->mc_addr, mac, OSA_ADDR_LEN);
196 mc->mc_addrlen = OSA_ADDR_LEN;
7db2266a
FB		 197 mc->is_vmac = vmac;
198
199 if (vmac) {
200 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
201 NULL);
202 } else {
203 rc = qeth_l2_send_setgroupmac(card, mac);
204 }
4a71df50 205
7db2266a 206 if (!rc)
4a71df50
FB		 207 list_add_tail(&mc->list, &card->mc_list);
208 else
209 kfree(mc);
210}
211
70919e23 212static void qeth_l2_del_all_mc(struct qeth_card *card, int del)
4a71df50
FB		 213{
214 struct qeth_mc_mac *mc, *tmp;
215
216 spin_lock_bh(&card->mclock);
217 list_for_each_entry_safe(mc, tmp, &card->mc_list, list) {
70919e23
UB		 218 if (del) {
219 if (mc->is_vmac)
220 qeth_l2_send_setdelmac(card, mc->mc_addr,
7db2266a 221 IPA_CMD_DELVMAC, NULL);
70919e23
UB		 222 else
223 qeth_l2_send_delgroupmac(card, mc->mc_addr);
224 }
4a71df50
FB		 225 list_del(&mc->list);
226 kfree(mc);
227 }
228 spin_unlock_bh(&card->mclock);
229}
230
ce73e10e
KDW		 231static inline int qeth_l2_get_cast_type(struct qeth_card *card,
232 struct sk_buff *skb)
4a71df50 233{
ce73e10e
KDW		 234 if (card->info.type == QETH_CARD_TYPE_OSN)
235 return RTN_UNSPEC;
236 if (is_broadcast_ether_addr(skb->data))
237 return RTN_BROADCAST;
238 if (is_multicast_ether_addr(skb->data))
239 return RTN_MULTICAST;
240 return RTN_UNSPEC;
4a71df50
FB		 241}
242
243static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
43934077 244 struct sk_buff *skb, int cast_type)
4a71df50 245{
683d718a 246 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
4a71df50
FB		 247
248 memset(hdr, 0, sizeof(struct qeth_hdr));
249 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
250
251 /* set byte byte 3 to casting flags */
252 if (cast_type == RTN_MULTICAST)
253 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
254 else if (cast_type == RTN_BROADCAST)
255 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
256 else
ce73e10e 257 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
4a71df50
FB		 258
259 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
260 /* VSWITCH relies on the VLAN
261 * information to be present in
262 * the QDIO header */
263 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
264 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
265 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
266 }
267}
268
269static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
270 struct qeth_reply *reply, unsigned long data)
271{
272 struct qeth_ipa_cmd *cmd;
273
847a50fd 274 QETH_CARD_TEXT(card, 2, "L2sdvcb");
4a71df50
FB		 275 cmd = (struct qeth_ipa_cmd *) data;
276 if (cmd->hdr.return_code) {
14cc21b6 277 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
4a71df50
FB		 278 "Continuing\n", cmd->data.setdelvlan.vlan_id,
279 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
847a50fd
CO		 280 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
281 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
4a71df50
FB		 282 }
283 return 0;
284}
285
286static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
287 enum qeth_ipa_cmds ipacmd)
288{
289 struct qeth_ipa_cmd *cmd;
290 struct qeth_cmd_buffer *iob;
291
847a50fd 292 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
4a71df50
FB		 293 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
294 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
295 cmd->data.setdelvlan.vlan_id = i;
296 return qeth_send_ipa_cmd(card, iob,
297 qeth_l2_send_setdelvlan_cb, NULL);
298}
299
70919e23 300static void qeth_l2_process_vlans(struct qeth_card *card)
4a71df50
FB		 301{
302 struct qeth_vlan_vid *id;
847a50fd 303 QETH_CARD_TEXT(card, 3, "L2prcvln");
4a71df50
FB		 304 spin_lock_bh(&card->vlanlock);
305 list_for_each_entry(id, &card->vid_list, list) {
70919e23 306 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
4a71df50
FB		 307 }
308 spin_unlock_bh(&card->vlanlock);
309}
310
80d5c368
PM		 311static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
312 __be16 proto, u16 vid)
4a71df50 313{
509e2562 314 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 315 struct qeth_vlan_vid *id;
316
847a50fd 317 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
10651db7 318 if (!vid)
8e586137 319 return 0;
5113fec0 320 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 321 QETH_CARD_TEXT(card, 3, "aidOSM");
8e586137 322 return 0;
5113fec0 323 }
8e98ac48 324 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 325 QETH_CARD_TEXT(card, 3, "aidREC");
8e586137 326 return 0;
8e98ac48 327 }
4a71df50
FB		 328 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
329 if (id) {
330 id->vid = vid;
331 qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
332 spin_lock_bh(&card->vlanlock);
333 list_add_tail(&id->list, &card->vid_list);
334 spin_unlock_bh(&card->vlanlock);
8e586137
JP		 335 } else {
336 return -ENOMEM;
4a71df50 337 }
8e586137 338 return 0;
4a71df50
FB		 339}
340
80d5c368
PM		 341static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
342 __be16 proto, u16 vid)
4a71df50
FB		 343{
344 struct qeth_vlan_vid *id, *tmpid = NULL;
509e2562 345 struct qeth_card *card = dev->ml_priv;
4a71df50 346
847a50fd 347 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
5113fec0 348 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 349 QETH_CARD_TEXT(card, 3, "kidOSM");
8e586137 350 return 0;
5113fec0 351 }
8e98ac48 352 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 353 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 354 return 0;
8e98ac48 355 }
4a71df50
FB		 356 spin_lock_bh(&card->vlanlock);
357 list_for_each_entry(id, &card->vid_list, list) {
358 if (id->vid == vid) {
359 list_del(&id->list);
360 tmpid = id;
361 break;
362 }
363 }
364 spin_unlock_bh(&card->vlanlock);
365 if (tmpid) {
366 qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
367 kfree(tmpid);
368 }
369 qeth_l2_set_multicast_list(card->dev);
8e586137 370 return 0;
4a71df50
FB		 371}
372
373static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
374{
375 int rc = 0;
376
d11ba0c4
PT		 377 QETH_DBF_TEXT(SETUP , 2, "stopcard");
378 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 379
380 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 381 if (card->read.state == CH_STATE_UP &&
382 card->write.state == CH_STATE_UP &&
383 (card->state == CARD_STATE_UP)) {
384 if (recovery_mode &&
385 card->info.type != QETH_CARD_TYPE_OSN) {
386 qeth_l2_stop(card->dev);
387 } else {
388 rtnl_lock();
389 dev_close(card->dev);
390 rtnl_unlock();
391 }
70919e23 392 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
4a71df50
FB		 393 card->state = CARD_STATE_SOFTSETUP;
394 }
395 if (card->state == CARD_STATE_SOFTSETUP) {
70919e23 396 qeth_l2_del_all_mc(card, 0);
4a71df50
FB		 397 qeth_clear_ipacmd_list(card);
398 card->state = CARD_STATE_HARDSETUP;
399 }
400 if (card->state == CARD_STATE_HARDSETUP) {
401 qeth_qdio_clear_card(card, 0);
402 qeth_clear_qdio_buffers(card);
403 qeth_clear_working_pool_list(card);
404 card->state = CARD_STATE_DOWN;
405 }
406 if (card->state == CARD_STATE_DOWN) {
407 qeth_clear_cmd_buffers(&card->read);
408 qeth_clear_cmd_buffers(&card->write);
409 }
4a71df50
FB		 410 return rc;
411}
412
a1c3ed4c
FB		 413static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
414 int budget, int *done)
4a71df50 415{
a1c3ed4c 416 int work_done = 0;
4a71df50
FB		 417 struct sk_buff *skb;
418 struct qeth_hdr *hdr;
4a71df50
FB		 419 unsigned int len;
420
a1c3ed4c 421 *done = 0;
18af5c17 422 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 423 while (budget) {
424 skb = qeth_core_get_next_skb(card,
b3332930 425 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 426 &card->rx.b_element, &card->rx.e_offset, &hdr);
427 if (!skb) {
428 *done = 1;
429 break;
4a71df50 430 }
a1c3ed4c 431 skb->dev = card->dev;
4a71df50
FB		 432 switch (hdr->hdr.l2.id) {
433 case QETH_HEADER_TYPE_LAYER2:
434 skb->pkt_type = PACKET_HOST;
435 skb->protocol = eth_type_trans(skb, skb->dev);
c5e631a8 436 skb->ip_summed = CHECKSUM_NONE;
12883725
UB		 437 if (skb->protocol == htons(ETH_P_802_2))
438 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
4a71df50 439 len = skb->len;
a1c3ed4c 440 netif_receive_skb(skb);
4a71df50
FB		 441 break;
442 case QETH_HEADER_TYPE_OSN:
2d488c2f
UB		 443 if (card->info.type == QETH_CARD_TYPE_OSN) {
444 skb_push(skb, sizeof(struct qeth_hdr));
445 skb_copy_to_linear_data(skb, hdr,
4a71df50 446 sizeof(struct qeth_hdr));
2d488c2f
UB		 447 len = skb->len;
448 card->osn_info.data_cb(skb);
449 break;
450 }
451 /* else unknown */
4a71df50
FB		 452 default:
453 dev_kfree_skb_any(skb);
847a50fd 454 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 455 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 456 continue;
457 }
a1c3ed4c
FB		 458 work_done++;
459 budget--;
4a71df50
FB		 460 card->stats.rx_packets++;
461 card->stats.rx_bytes += len;
462 }
a1c3ed4c
FB		 463 return work_done;
464}
465
466static int qeth_l2_poll(struct napi_struct *napi, int budget)
467{
468 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
469 int work_done = 0;
470 struct qeth_qdio_buffer *buffer;
471 int done;
472 int new_budget = budget;
473
474 if (card->options.performance_stats) {
475 card->perf_stats.inbound_cnt++;
476 card->perf_stats.inbound_start_time = qeth_get_micros();
477 }
478
479 while (1) {
480 if (!card->rx.b_count) {
481 card->rx.qdio_err = 0;
482 card->rx.b_count = qdio_get_next_buffers(
483 card->data.ccwdev, 0, &card->rx.b_index,
484 &card->rx.qdio_err);
485 if (card->rx.b_count <= 0) {
486 card->rx.b_count = 0;
487 break;
488 }
489 card->rx.b_element =
490 &card->qdio.in_q->bufs[card->rx.b_index]
491 .buffer->element[0];
492 card->rx.e_offset = 0;
493 }
494
495 while (card->rx.b_count) {
496 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
497 if (!(card->rx.qdio_err &&
498 qeth_check_qdio_errors(card, buffer->buffer,
499 card->rx.qdio_err, "qinerr")))
500 work_done += qeth_l2_process_inbound_buffer(
501 card, new_budget, &done);
502 else
503 done = 1;
504
505 if (done) {
506 if (card->options.performance_stats)
507 card->perf_stats.bufs_rec++;
508 qeth_put_buffer_pool_entry(card,
509 buffer->pool_entry);
510 qeth_queue_input_buffer(card, card->rx.b_index);
511 card->rx.b_count--;
512 if (card->rx.b_count) {
513 card->rx.b_index =
514 (card->rx.b_index + 1) %
515 QDIO_MAX_BUFFERS_PER_Q;
516 card->rx.b_element =
517 &card->qdio.in_q
518 ->bufs[card->rx.b_index]
519 .buffer->element[0];
520 card->rx.e_offset = 0;
521 }
522 }
523
524 if (work_done >= budget)
525 goto out;
526 else
527 new_budget = budget - work_done;
528 }
529 }
530
531 napi_complete(napi);
532 if (qdio_start_irq(card->data.ccwdev, 0))
533 napi_schedule(&card->napi);
534out:
535 if (card->options.performance_stats)
536 card->perf_stats.inbound_time += qeth_get_micros() -
537 card->perf_stats.inbound_start_time;
538 return work_done;
4a71df50
FB		 539}
540
541static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
542 enum qeth_ipa_cmds ipacmd,
543 int (*reply_cb) (struct qeth_card *,
544 struct qeth_reply*,
545 unsigned long))
546{
547 struct qeth_ipa_cmd *cmd;
548 struct qeth_cmd_buffer *iob;
549
847a50fd 550 QETH_CARD_TEXT(card, 2, "L2sdmac");
4a71df50
FB		 551 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
552 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
553 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
554 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
555 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
556}
557
558static int qeth_l2_send_setmac_cb(struct qeth_card *card,
559 struct qeth_reply *reply,
560 unsigned long data)
561{
562 struct qeth_ipa_cmd *cmd;
563
847a50fd 564 QETH_CARD_TEXT(card, 2, "L2Smaccb");
4a71df50
FB		 565 cmd = (struct qeth_ipa_cmd *) data;
566 if (cmd->hdr.return_code) {
847a50fd 567 QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code);
4a71df50 568 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
0666eb06
UB		 569 switch (cmd->hdr.return_code) {
570 case IPA_RC_L2_DUP_MAC:
571 case IPA_RC_L2_DUP_LAYER3_MAC:
572 dev_warn(&card->gdev->dev,
d998ab0b 573 "MAC address %pM already exists\n",
221c17fe 574 cmd->data.setdelmac.mac);
0666eb06
UB		 575 break;
576 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
577 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
578 dev_warn(&card->gdev->dev,
d998ab0b 579 "MAC address %pM is not authorized\n",
221c17fe 580 cmd->data.setdelmac.mac);
0666eb06
UB		 581 break;
582 default:
583 break;
584 }
4a71df50
FB		 585 } else {
586 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
587 memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac,
588 OSA_ADDR_LEN);
74eacdb9 589 dev_info(&card->gdev->dev,
d998ab0b
HS		 590 "MAC address %pM successfully registered on device %s\n",
591 card->dev->dev_addr, card->dev->name);
4a71df50
FB		 592 }
593 return 0;
594}
595
596static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
597{
847a50fd 598 QETH_CARD_TEXT(card, 2, "L2Setmac");
4a71df50
FB		 599 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
600 qeth_l2_send_setmac_cb);
601}
602
603static int qeth_l2_send_delmac_cb(struct qeth_card *card,
604 struct qeth_reply *reply,
605 unsigned long data)
606{
607 struct qeth_ipa_cmd *cmd;
608
847a50fd 609 QETH_CARD_TEXT(card, 2, "L2Dmaccb");
4a71df50
FB		 610 cmd = (struct qeth_ipa_cmd *) data;
611 if (cmd->hdr.return_code) {
847a50fd 612 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
4a71df50
FB		 613 return 0;
614 }
615 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
616
617 return 0;
618}
619
620static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
621{
847a50fd 622 QETH_CARD_TEXT(card, 2, "L2Delmac");
4a71df50
FB		 623 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
624 return 0;
625 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
626 qeth_l2_send_delmac_cb);
627}
628
629static int qeth_l2_request_initial_mac(struct qeth_card *card)
630{
631 int rc = 0;
632 char vendor_pre[] = {0x02, 0x00, 0x00};
633
d11ba0c4
PT		 634 QETH_DBF_TEXT(SETUP, 2, "doL2init");
635 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
4a71df50 636
a134884a
SR		 637 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
638 rc = qeth_query_setadapterparms(card);
639 if (rc) {
640 QETH_DBF_MESSAGE(2, "could not query adapter "
641 "parameters on device %s: x%x\n",
642 CARD_BUS_ID(card), rc);
643 }
4a71df50
FB		 644 }
645
5113fec0
UB		 646 if (card->info.type == QETH_CARD_TYPE_IQD ||
647 card->info.type == QETH_CARD_TYPE_OSM ||
648 card->info.type == QETH_CARD_TYPE_OSX ||
649 card->info.guestlan) {
4a71df50
FB		 650 rc = qeth_setadpparms_change_macaddr(card);
651 if (rc) {
14cc21b6
FB		 652 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
653 "device %s: x%x\n", CARD_BUS_ID(card), rc);
d11ba0c4 654 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 655 return rc;
656 }
d11ba0c4 657 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
4a71df50 658 } else {
1833611d 659 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 660 memcpy(card->dev->dev_addr, vendor_pre, 3);
661 }
662 return 0;
663}
664
665static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
666{
667 struct sockaddr *addr = p;
509e2562 668 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 669 int rc = 0;
670
847a50fd 671 QETH_CARD_TEXT(card, 3, "setmac");
4a71df50
FB		 672
673 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
847a50fd 674 QETH_CARD_TEXT(card, 3, "setmcINV");
4a71df50
FB		 675 return -EOPNOTSUPP;
676 }
677
5113fec0
UB		 678 if (card->info.type == QETH_CARD_TYPE_OSN ||
679 card->info.type == QETH_CARD_TYPE_OSM ||
680 card->info.type == QETH_CARD_TYPE_OSX) {
847a50fd 681 QETH_CARD_TEXT(card, 3, "setmcTYP");
4a71df50
FB		 682 return -EOPNOTSUPP;
683 }
847a50fd 684 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
8e98ac48 685 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 686 QETH_CARD_TEXT(card, 3, "setmcREC");
8e98ac48
UB		 687 return -ERESTARTSYS;
688 }
4a71df50 689 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
7702745b 690 if (!rc || (rc == IPA_RC_L2_MAC_NOT_FOUND))
4a71df50 691 rc = qeth_l2_send_setmac(card, addr->sa_data);
e0a8114c 692 return rc ? -EINVAL : 0;
4a71df50
FB		 693}
694
695static void qeth_l2_set_multicast_list(struct net_device *dev)
696{
509e2562 697 struct qeth_card *card = dev->ml_priv;
ccffad25 698 struct netdev_hw_addr *ha;
4a71df50
FB		 699
700 if (card->info.type == QETH_CARD_TYPE_OSN)
701 return ;
702
847a50fd 703 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 704 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
705 (card->state != CARD_STATE_UP))
706 return;
70919e23 707 qeth_l2_del_all_mc(card, 1);
4a71df50 708 spin_lock_bh(&card->mclock);
22bedad3
JP		 709 netdev_for_each_mc_addr(ha, dev)
710 qeth_l2_add_mc(card, ha->addr, 0);
7db2266a 711
32e7bfc4 712 netdev_for_each_uc_addr(ha, dev)
ccffad25 713 qeth_l2_add_mc(card, ha->addr, 1);
7db2266a 714
4a71df50
FB		 715 spin_unlock_bh(&card->mclock);
716 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
717 return;
718 qeth_setadp_promisc_mode(card);
719}
720
721static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
722{
723 int rc;
724 struct qeth_hdr *hdr = NULL;
725 int elements = 0;
509e2562 726 struct qeth_card *card = dev->ml_priv;
4a71df50 727 struct sk_buff *new_skb = skb;
ce73e10e 728 int cast_type = qeth_l2_get_cast_type(card, skb);
290b8348 729 struct qeth_qdio_out_q *queue;
4a71df50 730 int tx_bytes = skb->len;
683d718a
FB		 731 int data_offset = -1;
732 int elements_needed = 0;
733 int hd_len = 0;
4a71df50 734
290b8348
SR		 735 if (card->qdio.do_prio_queueing || (cast_type &&
736 card->info.is_multicast_different))
737 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
738 qeth_get_ip_version(skb), cast_type)];
739 else
740 queue = card->qdio.out_qs[card->qdio.default_out_queue];
741
4a71df50
FB		 742 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
743 card->stats.tx_carrier_errors++;
744 goto tx_drop;
745 }
746
747 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
748 (skb->protocol == htons(ETH_P_IPV6)))
749 goto tx_drop;
750
751 if (card->options.performance_stats) {
752 card->perf_stats.outbound_cnt++;
753 card->perf_stats.outbound_start_time = qeth_get_micros();
754 }
755 netif_stop_queue(dev);
756
4a71df50
FB		 757 if (card->info.type == QETH_CARD_TYPE_OSN)
758 hdr = (struct qeth_hdr *)skb->data;
759 else {
64ef8957 760 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 761 new_skb = skb;
762 data_offset = ETH_HLEN;
763 hd_len = ETH_HLEN;
764 hdr = kmem_cache_alloc(qeth_core_header_cache,
765 GFP_ATOMIC);
766 if (!hdr)
767 goto tx_drop;
768 elements_needed++;
769 skb_reset_mac_header(new_skb);
43934077 770 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
683d718a
FB		 771 hdr->hdr.l2.pkt_length = new_skb->len;
772 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
773 skb_mac_header(new_skb), ETH_HLEN);
774 } else {
775 /* create a clone with writeable headroom */
776 new_skb = skb_realloc_headroom(skb,
777 sizeof(struct qeth_hdr));
778 if (!new_skb)
779 goto tx_drop;
780 hdr = (struct qeth_hdr *)skb_push(new_skb,
f90b744e 781 sizeof(struct qeth_hdr));
683d718a 782 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
43934077 783 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
683d718a 784 }
4a71df50
FB		 785 }
786
065cc782 787 elements = qeth_get_elements_no(card, new_skb, elements_needed);
64ef8957
FB		 788 if (!elements) {
789 if (data_offset >= 0)
790 kmem_cache_free(qeth_core_header_cache, hdr);
791 goto tx_drop;
f61a0d05 792 }
4a71df50 793
51aa165c 794 if (card->info.type != QETH_CARD_TYPE_IQD) {
d4ae1f5e 795 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
51aa165c
FB		 796 sizeof(struct qeth_hdr_layer2)))
797 goto tx_drop;
4a71df50 798 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 799 elements);
51aa165c 800 } else
4a71df50 801 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 802 elements, data_offset, hd_len);
4a71df50
FB		 803 if (!rc) {
804 card->stats.tx_packets++;
805 card->stats.tx_bytes += tx_bytes;
806 if (new_skb != skb)
807 dev_kfree_skb_any(skb);
ec634fe3 808 rc = NETDEV_TX_OK;
4a71df50 809 } else {
683d718a
FB		 810 if (data_offset >= 0)
811 kmem_cache_free(qeth_core_header_cache, hdr);
812
4a71df50
FB		 813 if (rc == -EBUSY) {
814 if (new_skb != skb)
815 dev_kfree_skb_any(new_skb);
816 return NETDEV_TX_BUSY;
817 } else
818 goto tx_drop;
819 }
820
821 netif_wake_queue(dev);
822 if (card->options.performance_stats)
823 card->perf_stats.outbound_time += qeth_get_micros() -
824 card->perf_stats.outbound_start_time;
825 return rc;
826
827tx_drop:
828 card->stats.tx_dropped++;
829 card->stats.tx_errors++;
830 if ((new_skb != skb) && new_skb)
831 dev_kfree_skb_any(new_skb);
832 dev_kfree_skb_any(skb);
d0ec0f54 833 netif_wake_queue(dev);
4a71df50
FB		 834 return NETDEV_TX_OK;
835}
836
39423440 837static int __qeth_l2_open(struct net_device *dev)
4a71df50 838{
509e2562 839 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 840 int rc = 0;
4a71df50 841
847a50fd 842 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 843 if (card->state == CARD_STATE_UP)
844 return rc;
4a71df50
FB		 845 if (card->state != CARD_STATE_SOFTSETUP)
846 return -ENODEV;
847
848 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
849 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
847a50fd 850 QETH_CARD_TEXT(card, 4, "nomacadr");
4a71df50
FB		 851 return -EPERM;
852 }
853 card->data.state = CH_STATE_UP;
854 card->state = CARD_STATE_UP;
4a71df50
FB		 855 netif_start_queue(dev);
856
a1c3ed4c
FB		 857 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
858 napi_enable(&card->napi);
859 napi_schedule(&card->napi);
860 } else
861 rc = -EIO;
862 return rc;
4a71df50
FB		 863}
864
39423440
UB		 865static int qeth_l2_open(struct net_device *dev)
866{
867 struct qeth_card *card = dev->ml_priv;
868
869 QETH_CARD_TEXT(card, 5, "qethope_");
870 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
871 QETH_CARD_TEXT(card, 3, "openREC");
872 return -ERESTARTSYS;
873 }
874 return __qeth_l2_open(dev);
875}
876
4a71df50
FB		 877static int qeth_l2_stop(struct net_device *dev)
878{
509e2562 879 struct qeth_card *card = dev->ml_priv;
4a71df50 880
847a50fd 881 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 882 netif_tx_disable(dev);
a1c3ed4c 883 if (card->state == CARD_STATE_UP) {
4a71df50 884 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 885 napi_disable(&card->napi);
886 }
4a71df50
FB		 887 return 0;
888}
889
890static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
891{
892 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
893
b4d72c08 894 qeth_l2_create_device_attributes(&gdev->dev);
4a71df50
FB		 895 INIT_LIST_HEAD(&card->vid_list);
896 INIT_LIST_HEAD(&card->mc_list);
897 card->options.layer2 = 1;
1da74b1c 898 card->info.hwtrap = 0;
4a71df50
FB		 899 return 0;
900}
901
902static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
903{
904 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
905
b4d72c08 906 qeth_l2_remove_device_attributes(&cgdev->dev);
f2148565 907 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 908 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
909
70919e23 910 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 911 qeth_l2_set_offline(cgdev);
4a71df50
FB		 912
913 if (card->dev) {
914 unregister_netdev(card->dev);
915 card->dev = NULL;
916 }
4a71df50
FB		 917 return;
918}
919
0fc0b732 920static const struct ethtool_ops qeth_l2_ethtool_ops = {
4a71df50 921 .get_link = ethtool_op_get_link,
4a71df50
FB		 922 .get_strings = qeth_core_get_strings,
923 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 924 .get_sset_count = qeth_core_get_sset_count,
4a71df50 925 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 926 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 927};
928
0fc0b732 929static const struct ethtool_ops qeth_l2_osn_ops = {
4a71df50
FB		 930 .get_strings = qeth_core_get_strings,
931 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 932 .get_sset_count = qeth_core_get_sset_count,
4a71df50
FB		 933 .get_drvinfo = qeth_core_get_drvinfo,
934};
935
3d58cefd 936static const struct net_device_ops qeth_l2_netdev_ops = {
8403b13c
FB		 937 .ndo_open = qeth_l2_open,
938 .ndo_stop = qeth_l2_stop,
939 .ndo_get_stats = qeth_get_stats,
940 .ndo_start_xmit = qeth_l2_hard_start_xmit,
941 .ndo_validate_addr = eth_validate_addr,
afc4b13d 942 .ndo_set_rx_mode = qeth_l2_set_multicast_list,
8403b13c
FB		 943 .ndo_do_ioctl = qeth_l2_do_ioctl,
944 .ndo_set_mac_address = qeth_l2_set_mac_address,
945 .ndo_change_mtu = qeth_change_mtu,
946 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
947 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
948 .ndo_tx_timeout = qeth_tx_timeout,
949};
950
4a71df50
FB		 951static int qeth_l2_setup_netdev(struct qeth_card *card)
952{
953 switch (card->info.type) {
4a71df50 954 case QETH_CARD_TYPE_IQD:
c835a677
TG		 955 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
956 ether_setup);
4a71df50
FB		 957 break;
958 case QETH_CARD_TYPE_OSN:
c835a677
TG		 959 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
960 ether_setup);
4a71df50
FB		 961 card->dev->flags |= IFF_NOARP;
962 break;
963 default:
964 card->dev = alloc_etherdev(0);
965 }
966
967 if (!card->dev)
968 return -ENODEV;
969
509e2562 970 card->dev->ml_priv = card;
4a71df50 971 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 972 card->dev->mtu = card->info.initial_mtu;
8403b13c 973 card->dev->netdev_ops = &qeth_l2_netdev_ops;
7ad24ea4
WK		 974 card->dev->ethtool_ops =
975 (card->info.type != QETH_CARD_TYPE_OSN) ?
976 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
f646968f 977 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4a71df50
FB		 978 card->info.broadcast_capable = 1;
979 qeth_l2_request_initial_mac(card);
980 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 981 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
4a71df50
FB		 982 return register_netdev(card->dev);
983}
984
985static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
986{
987 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
988 int rc = 0;
989 enum qeth_card_states recover_flag;
990
9dc48ccc 991 mutex_lock(&card->discipline_mutex);
c4949f07 992 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 993 QETH_DBF_TEXT(SETUP, 2, "setonlin");
994 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 995
4a71df50 996 recover_flag = card->state;
4a71df50
FB		 997 rc = qeth_core_hardsetup_card(card);
998 if (rc) {
d11ba0c4 999 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
aa909224 1000 rc = -ENODEV;
4a71df50
FB		 1001 goto out_remove;
1002 }
c044dc21
EC		 1003 qeth_bridgeport_query_support(card);
1004 if (card->options.sbp.supported_funcs)
1005 dev_info(&card->gdev->dev,
1006 "The device represents a HiperSockets Bridge Capable Port\n");
395672e0 1007 qeth_trace_features(card);
4a71df50 1008
aa909224
UB		 1009 if (!card->dev && qeth_l2_setup_netdev(card)) {
1010 rc = -ENODEV;
4a71df50 1011 goto out_remove;
aa909224 1012 }
4a71df50
FB		 1013
1014 if (card->info.type != QETH_CARD_TYPE_OSN)
1015 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1016
1da74b1c
FB		 1017 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1018 if (card->info.hwtrap &&
1019 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1020 card->info.hwtrap = 0;
1021 } else
1022 card->info.hwtrap = 0;
1023
b4d72c08
EC		 1024 qeth_l2_setup_bridgeport_attrs(card);
1025
4a71df50 1026 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 1027 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 1028 qeth_print_status_message(card);
1029
1030 /* softsetup */
d11ba0c4 1031 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 1032
1033 rc = qeth_send_startlan(card);
1034 if (rc) {
d11ba0c4 1035 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 1036 if (rc == 0xe080) {
74eacdb9
FB		 1037 dev_warn(&card->gdev->dev,
1038 "The LAN is offline\n");
4a71df50 1039 card->lan_online = 0;
2b6203bb 1040 goto contin;
4a71df50 1041 }
aa909224 1042 rc = -ENODEV;
f2148565 1043 goto out_remove;
4a71df50
FB		 1044 } else
1045 card->lan_online = 1;
1046
2b6203bb 1047contin:
5113fec0 1048 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
0f54761d 1049 (card->info.type == QETH_CARD_TYPE_OSX)) {
d64ecc22 1050 /* configure isolation level */
0f54761d
SR		 1051 rc = qeth_set_access_ctrl_online(card, 0);
1052 if (rc) {
1053 rc = -ENODEV;
1054 goto out_remove;
1055 }
1056 }
5113fec0
UB		 1057
1058 if (card->info.type != QETH_CARD_TYPE_OSN &&
1059 card->info.type != QETH_CARD_TYPE_OSM)
70919e23 1060 qeth_l2_process_vlans(card);
4a71df50
FB		 1061
1062 netif_tx_disable(card->dev);
1063
1064 rc = qeth_init_qdio_queues(card);
1065 if (rc) {
d11ba0c4 1066 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 1067 rc = -ENODEV;
4a71df50
FB		 1068 goto out_remove;
1069 }
1070 card->state = CARD_STATE_SOFTSETUP;
2b6203bb
UB		 1071 if (card->lan_online)
1072 netif_carrier_on(card->dev);
1073 else
1074 netif_carrier_off(card->dev);
4a71df50
FB		 1075
1076 qeth_set_allowed_threads(card, 0xffffffff, 0);
1077 if (recover_flag == CARD_STATE_RECOVER) {
1078 if (recovery_mode &&
1079 card->info.type != QETH_CARD_TYPE_OSN) {
39423440 1080 __qeth_l2_open(card->dev);
4a71df50
FB		 1081 } else {
1082 rtnl_lock();
1083 dev_open(card->dev);
1084 rtnl_unlock();
1085 }
1086 /* this also sets saved unicast addresses */
1087 qeth_l2_set_multicast_list(card->dev);
1088 }
1089 /* let user_space know that device is online */
1090 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1091 mutex_unlock(&card->conf_mutex);
9dc48ccc 1092 mutex_unlock(&card->discipline_mutex);
4a71df50 1093 return 0;
aa909224 1094
4a71df50 1095out_remove:
4a71df50
FB		 1096 qeth_l2_stop_card(card, 0);
1097 ccw_device_set_offline(CARD_DDEV(card));
1098 ccw_device_set_offline(CARD_WDEV(card));
1099 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 1100 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1101 if (recover_flag == CARD_STATE_RECOVER)
1102 card->state = CARD_STATE_RECOVER;
1103 else
1104 card->state = CARD_STATE_DOWN;
c4949f07 1105 mutex_unlock(&card->conf_mutex);
9dc48ccc 1106 mutex_unlock(&card->discipline_mutex);
aa909224 1107 return rc;
4a71df50
FB		 1108}
1109
1110static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1111{
1112 return __qeth_l2_set_online(gdev, 0);
1113}
1114
1115static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1116 int recovery_mode)
1117{
1118 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1119 int rc = 0, rc2 = 0, rc3 = 0;
1120 enum qeth_card_states recover_flag;
1121
9dc48ccc 1122 mutex_lock(&card->discipline_mutex);
c4949f07 1123 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1124 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1125 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 1126
1127 if (card->dev && netif_carrier_ok(card->dev))
1128 netif_carrier_off(card->dev);
1129 recover_flag = card->state;
1da74b1c
FB		 1130 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1131 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1132 card->info.hwtrap = 1;
1133 }
0f5623c9 1134 qeth_l2_stop_card(card, recovery_mode);
4a71df50
FB		 1135 rc = ccw_device_set_offline(CARD_DDEV(card));
1136 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1137 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1138 if (!rc)
1139 rc = (rc2) ? rc2 : rc3;
1140 if (rc)
d11ba0c4 1141 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 1142 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1143 if (recover_flag == CARD_STATE_UP)
1144 card->state = CARD_STATE_RECOVER;
1145 /* let user_space know that device is offline */
1146 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1147 mutex_unlock(&card->conf_mutex);
9dc48ccc 1148 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 1149 return 0;
1150}
1151
1152static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1153{
1154 return __qeth_l2_set_offline(cgdev, 0);
1155}
1156
1157static int qeth_l2_recover(void *ptr)
1158{
1159 struct qeth_card *card;
1160 int rc = 0;
1161
1162 card = (struct qeth_card *) ptr;
847a50fd 1163 QETH_CARD_TEXT(card, 2, "recover1");
4a71df50
FB		 1164 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1165 return 0;
847a50fd 1166 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 1167 dev_warn(&card->gdev->dev,
1168 "A recovery process has been started for the device\n");
65d8013c 1169 qeth_set_recovery_task(card);
4a71df50
FB		 1170 __qeth_l2_set_offline(card->gdev, 1);
1171 rc = __qeth_l2_set_online(card->gdev, 1);
4a71df50 1172 if (!rc)
74eacdb9
FB		 1173 dev_info(&card->gdev->dev,
1174 "Device successfully recovered!\n");
28a7e4c9 1175 else {
0f54761d
SR		 1176 qeth_close_dev(card);
1177 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 1178 "failed to recover an error on the device\n");
28a7e4c9 1179 }
65d8013c 1180 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 1181 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1182 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 1183 return 0;
1184}
1185
1186static int __init qeth_l2_init(void)
1187{
74eacdb9 1188 pr_info("register layer 2 discipline\n");
4a71df50
FB		 1189 return 0;
1190}
1191
1192static void __exit qeth_l2_exit(void)
1193{
74eacdb9 1194 pr_info("unregister layer 2 discipline\n");
4a71df50
FB		 1195}
1196
1197static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1198{
1199 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 1200 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 1201 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1202 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 1203 qeth_qdio_clear_card(card, 0);
1204 qeth_clear_qdio_buffers(card);
22ae2790 1205 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1206}
1207
bbcfcdc8
FB		 1208static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1209{
1210 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1211
1212 if (card->dev)
1213 netif_device_detach(card->dev);
1214 qeth_set_allowed_threads(card, 0, 1);
1215 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1216 if (gdev->state == CCWGROUP_OFFLINE)
1217 return 0;
1218 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 1219 if (card->info.hwtrap)
1220 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 1221 __qeth_l2_set_offline(card->gdev, 1);
1222 } else
1223 __qeth_l2_set_offline(card->gdev, 0);
1224 return 0;
1225}
1226
1227static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1228{
1229 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1230 int rc = 0;
1231
1232 if (gdev->state == CCWGROUP_OFFLINE)
1233 goto out;
1234
1235 if (card->state == CARD_STATE_RECOVER) {
1236 rc = __qeth_l2_set_online(card->gdev, 1);
1237 if (rc) {
869da90b
UB		 1238 rtnl_lock();
1239 dev_close(card->dev);
1240 rtnl_unlock();
bbcfcdc8
FB		 1241 }
1242 } else
1243 rc = __qeth_l2_set_online(card->gdev, 0);
1244out:
1245 qeth_set_allowed_threads(card, 0xffffffff, 0);
1246 if (card->dev)
1247 netif_device_attach(card->dev);
1248 if (rc)
1249 dev_warn(&card->gdev->dev, "The qeth device driver "
1250 "failed to recover an error on the device\n");
1251 return rc;
1252}
1253
c044dc21
EC		 1254/* Returns zero if the command is successfully "consumed" */
1255static int qeth_l2_control_event(struct qeth_card *card,
1256 struct qeth_ipa_cmd *cmd)
1257{
1258 switch (cmd->hdr.command) {
1259 case IPA_CMD_SETBRIDGEPORT:
1260 if (cmd->data.sbp.hdr.command_code ==
1261 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1262 qeth_bridge_state_change(card, cmd);
1263 return 0;
1264 } else
1265 return 1;
1266 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1267 qeth_bridge_host_event(card, cmd);
1268 return 0;
1269 default:
1270 return 1;
1271 }
1272}
1273
c041f2d4
SO		 1274struct qeth_discipline qeth_l2_discipline = {
1275 .start_poll = qeth_qdio_start_poll,
1276 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1277 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1278 .recover = qeth_l2_recover,
1279 .setup = qeth_l2_probe_device,
4a71df50
FB		 1280 .remove = qeth_l2_remove_device,
1281 .set_online = qeth_l2_set_online,
1282 .set_offline = qeth_l2_set_offline,
1283 .shutdown = qeth_l2_shutdown,
bbcfcdc8
FB		 1284 .freeze = qeth_l2_pm_suspend,
1285 .thaw = qeth_l2_pm_resume,
1286 .restore = qeth_l2_pm_resume,
c044dc21 1287 .control_event_handler = qeth_l2_control_event,
4a71df50 1288};
c041f2d4 1289EXPORT_SYMBOL_GPL(qeth_l2_discipline);
4a71df50
FB		 1290
1291static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1292 struct qeth_cmd_buffer *iob)
1293{
1294 unsigned long flags;
1295 int rc = 0;
1296
847a50fd 1297 QETH_CARD_TEXT(card, 5, "osndctrd");
4a71df50
FB		 1298
1299 wait_event(card->wait_q,
1300 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1301 qeth_prepare_control_data(card, len, iob);
847a50fd 1302 QETH_CARD_TEXT(card, 6, "osnoirqp");
4a71df50
FB		 1303 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1304 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1305 (addr_t) iob, 0, 0);
1306 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1307 if (rc) {
14cc21b6 1308 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4a71df50 1309 "ccw_device_start rc = %i\n", rc);
847a50fd 1310 QETH_CARD_TEXT_(card, 2, " err%d", rc);
4a71df50
FB		 1311 qeth_release_buffer(iob->channel, iob);
1312 atomic_set(&card->write.irq_pending, 0);
1313 wake_up(&card->wait_q);
1314 }
1315 return rc;
1316}
1317
1318static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1319 struct qeth_cmd_buffer *iob, int data_len)
1320{
1321 u16 s1, s2;
1322
847a50fd 1323 QETH_CARD_TEXT(card, 4, "osndipa");
4a71df50
FB		 1324
1325 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1326 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1327 s2 = (u16)data_len;
1328 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1329 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1330 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1331 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1332 return qeth_osn_send_control_data(card, s1, iob);
1333}
1334
1335int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1336{
1337 struct qeth_cmd_buffer *iob;
1338 struct qeth_card *card;
1339 int rc;
1340
4a71df50
FB		 1341 if (!dev)
1342 return -ENODEV;
509e2562 1343 card = dev->ml_priv;
4a71df50
FB		 1344 if (!card)
1345 return -ENODEV;
847a50fd 1346 QETH_CARD_TEXT(card, 2, "osnsdmc");
4a71df50
FB		 1347 if ((card->state != CARD_STATE_UP) &&
1348 (card->state != CARD_STATE_SOFTSETUP))
1349 return -ENODEV;
1350 iob = qeth_wait_for_buffer(&card->write);
1351 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1352 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1353 return rc;
1354}
1355EXPORT_SYMBOL(qeth_osn_assist);
1356
1357int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1358 int (*assist_cb)(struct net_device *, void *),
1359 int (*data_cb)(struct sk_buff *))
1360{
1361 struct qeth_card *card;
1362
4a71df50
FB		 1363 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1364 if (*dev == NULL)
1365 return -ENODEV;
509e2562 1366 card = (*dev)->ml_priv;
4a71df50
FB		 1367 if (!card)
1368 return -ENODEV;
847a50fd 1369 QETH_CARD_TEXT(card, 2, "osnreg");
4a71df50
FB		 1370 if ((assist_cb == NULL) || (data_cb == NULL))
1371 return -EINVAL;
1372 card->osn_info.assist_cb = assist_cb;
1373 card->osn_info.data_cb = data_cb;
1374 return 0;
1375}
1376EXPORT_SYMBOL(qeth_osn_register);
1377
1378void qeth_osn_deregister(struct net_device *dev)
1379{
1380 struct qeth_card *card;
1381
4a71df50
FB		 1382 if (!dev)
1383 return;
509e2562 1384 card = dev->ml_priv;
4a71df50
FB		 1385 if (!card)
1386 return;
847a50fd 1387 QETH_CARD_TEXT(card, 2, "osndereg");
4a71df50
FB		 1388 card->osn_info.assist_cb = NULL;
1389 card->osn_info.data_cb = NULL;
1390 return;
1391}
1392EXPORT_SYMBOL(qeth_osn_deregister);
1393
b4d72c08
EC		 1394/* SETBRIDGEPORT support, async notifications */
1395
9f48b9db
EC		 1396enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1397
1398/**
1399 * qeth_bridge_emit_host_event() - bridgeport address change notification
1400 * @card: qeth_card structure pointer, for udev events.
1401 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1402 * and reset token and addr_lnid are unused and may be NULL.
1403 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1404 * object, 0 - addition of an object.
1405 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1406 * @token: "network token" structure identifying physical address of the port.
1407 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1408 *
1409 * This function is called when registrations and deregistrations are
1410 * reported by the hardware, and also when notifications are enabled -
1411 * for all currently registered addresses.
1412 */
1413static void qeth_bridge_emit_host_event(struct qeth_card *card,
1414 enum qeth_an_event_type evtype,
1415 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1416{
1417 char str[7][32];
1418 char *env[8];
1419 int i = 0;
1420
1421 switch (evtype) {
1422 case anev_reg_unreg:
1423 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1424 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1425 ? "deregister" : "register");
1426 env[i] = str[i]; i++;
1427 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1428 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1429 addr_lnid->lnid);
1430 env[i] = str[i]; i++;
1431 }
1432 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1433 snprintf(str[i], sizeof(str[i]), "MAC=%pM6",
1434 &addr_lnid->mac);
1435 env[i] = str[i]; i++;
1436 }
1437 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1438 token->cssid, token->ssid, token->devnum);
1439 env[i] = str[i]; i++;
1440 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1441 env[i] = str[i]; i++;
1442 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1443 token->chpid);
1444 env[i] = str[i]; i++;
1445 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1446 env[i] = str[i]; i++;
1447 break;
1448 case anev_abort:
1449 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1450 env[i] = str[i]; i++;
1451 break;
1452 case anev_reset:
1453 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1454 env[i] = str[i]; i++;
1455 break;
1456 }
1457 env[i] = NULL;
1458 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1459}
1460
b4d72c08
EC		 1461struct qeth_bridge_state_data {
1462 struct work_struct worker;
1463 struct qeth_card *card;
1464 struct qeth_sbp_state_change qports;
1465};
1466
1467static void qeth_bridge_state_change_worker(struct work_struct *work)
1468{
1469 struct qeth_bridge_state_data *data =
1470 container_of(work, struct qeth_bridge_state_data, worker);
1471 /* We are only interested in the first entry - local port */
1472 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1473 char env_locrem[32];
1474 char env_role[32];
1475 char env_state[32];
1476 char *env[] = {
1477 env_locrem,
1478 env_role,
1479 env_state,
1480 NULL
1481 };
1482
1483 /* Role should not change by itself, but if it did, */
1484 /* information from the hardware is authoritative. */
1485 mutex_lock(&data->card->conf_mutex);
1486 data->card->options.sbp.role = entry->role;
1487 mutex_unlock(&data->card->conf_mutex);
1488
1489 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1490 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1491 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1492 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1493 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1494 "<INVALID>");
1495 snprintf(env_state, sizeof(env_state), "STATE=%s",
1496 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1497 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1498 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1499 "<INVALID>");
1500 kobject_uevent_env(&data->card->gdev->dev.kobj,
1501 KOBJ_CHANGE, env);
1502 kfree(data);
1503}
1504
c044dc21
EC		 1505static void qeth_bridge_state_change(struct qeth_card *card,
1506 struct qeth_ipa_cmd *cmd)
b4d72c08
EC		 1507{
1508 struct qeth_sbp_state_change *qports =
1509 &cmd->data.sbp.data.state_change;
1510 struct qeth_bridge_state_data *data;
1511 int extrasize;
1512
1513 QETH_CARD_TEXT(card, 2, "brstchng");
1514 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
8a593148 1515 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
b4d72c08
EC		 1516 return;
1517 }
1518 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1519 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1520 GFP_ATOMIC);
1521 if (!data) {
1522 QETH_CARD_TEXT(card, 2, "BPSalloc");
1523 return;
1524 }
1525 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1526 data->card = card;
1527 memcpy(&data->qports, qports,
1528 sizeof(struct qeth_sbp_state_change) + extrasize);
1529 queue_work(qeth_wq, &data->worker);
1530}
b4d72c08 1531
9f48b9db
EC		 1532struct qeth_bridge_host_data {
1533 struct work_struct worker;
1534 struct qeth_card *card;
1535 struct qeth_ipacmd_addr_change hostevs;
1536};
1537
1538static void qeth_bridge_host_event_worker(struct work_struct *work)
1539{
1540 struct qeth_bridge_host_data *data =
1541 container_of(work, struct qeth_bridge_host_data, worker);
1542 int i;
1543
1544 if (data->hostevs.lost_event_mask) {
1545 dev_info(&data->card->gdev->dev,
1546"Address notification from the HiperSockets Bridge Port stopped %s (%s)\n",
1547 data->card->dev->name,
1548 (data->hostevs.lost_event_mask == 0x01)
1549 ? "Overflow"
1550 : (data->hostevs.lost_event_mask == 0x02)
1551 ? "Bridge port state change"
1552 : "Unknown reason");
1553 mutex_lock(&data->card->conf_mutex);
1554 data->card->options.sbp.hostnotification = 0;
1555 mutex_unlock(&data->card->conf_mutex);
1556 qeth_bridge_emit_host_event(data->card, anev_abort,
1557 0, NULL, NULL);
1558 } else
1559 for (i = 0; i < data->hostevs.num_entries; i++) {
1560 struct qeth_ipacmd_addr_change_entry *entry =
1561 &data->hostevs.entry[i];
1562 qeth_bridge_emit_host_event(data->card,
1563 anev_reg_unreg,
1564 entry->change_code,
1565 &entry->token, &entry->addr_lnid);
1566 }
1567 kfree(data);
1568}
1569
c044dc21
EC		 1570static void qeth_bridge_host_event(struct qeth_card *card,
1571 struct qeth_ipa_cmd *cmd)
9f48b9db
EC		 1572{
1573 struct qeth_ipacmd_addr_change *hostevs =
1574 &cmd->data.addrchange;
1575 struct qeth_bridge_host_data *data;
1576 int extrasize;
1577
1578 QETH_CARD_TEXT(card, 2, "brhostev");
1579 if (cmd->hdr.return_code != 0x0000) {
1580 if (cmd->hdr.return_code == 0x0010) {
1581 if (hostevs->lost_event_mask == 0x00)
1582 hostevs->lost_event_mask = 0xff;
1583 } else {
1584 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1585 cmd->hdr.return_code);
1586 return;
1587 }
1588 }
1589 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1590 hostevs->num_entries;
1591 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1592 GFP_ATOMIC);
1593 if (!data) {
1594 QETH_CARD_TEXT(card, 2, "BPHalloc");
1595 return;
1596 }
1597 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1598 data->card = card;
1599 memcpy(&data->hostevs, hostevs,
1600 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1601 queue_work(qeth_wq, &data->worker);
1602}
9f48b9db 1603
b4d72c08
EC		 1604/* SETBRIDGEPORT support; sending commands */
1605
1606struct _qeth_sbp_cbctl {
1607 u16 ipa_rc;
1608 u16 cmd_rc;
1609 union {
1610 u32 supported;
1611 struct {
1612 enum qeth_sbp_roles *role;
1613 enum qeth_sbp_states *state;
1614 } qports;
1615 } data;
1616};
1617
1618/**
1619 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1620 * @card: qeth_card structure pointer, for debug messages.
1621 * @cbctl: state structure with hardware return codes.
1622 * @setcmd: IPA command code
1623 *
1624 * Returns negative errno-compatible error indication or 0 on success.
1625 */
1626static int qeth_bridgeport_makerc(struct qeth_card *card,
1627 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1628{
1629 int rc;
1630
1631 switch (cbctl->ipa_rc) {
1632 case IPA_RC_SUCCESS:
1633 switch (cbctl->cmd_rc) {
1634 case 0x0000:
1635 rc = 0;
1636 break;
1637 case 0x0004:
1638 rc = -ENOSYS;
1639 break;
1640 case 0x000C: /* Not configured as bridge Port */
1641 rc = -ENODEV; /* maybe not the best code here? */
1642 dev_err(&card->gdev->dev,
1643 "The HiperSockets device is not configured as a Bridge Port\n");
1644 break;
1645 case 0x0014: /* Another device is Primary */
1646 switch (setcmd) {
1647 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1648 rc = -EEXIST;
1649 dev_err(&card->gdev->dev,
1650 "The HiperSockets LAN already has a primary Bridge Port\n");
1651 break;
1652 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1653 rc = -EBUSY;
1654 dev_err(&card->gdev->dev,
1655 "The HiperSockets device is already a primary Bridge Port\n");
1656 break;
1657 default:
1658 rc = -EIO;
1659 }
1660 break;
1661 case 0x0018: /* This device is currently Secondary */
1662 rc = -EBUSY;
1663 dev_err(&card->gdev->dev,
1664 "The HiperSockets device is already a secondary Bridge Port\n");
1665 break;
1666 case 0x001C: /* Limit for Secondary devices reached */
1667 rc = -EEXIST;
1668 dev_err(&card->gdev->dev,
1669 "The HiperSockets LAN cannot have more secondary Bridge Ports\n");
1670 break;
1671 case 0x0024: /* This device is currently Primary */
1672 rc = -EBUSY;
1673 dev_err(&card->gdev->dev,
1674 "The HiperSockets device is already a primary Bridge Port\n");
1675 break;
1676 case 0x0020: /* Not authorized by zManager */
1677 rc = -EACCES;
1678 dev_err(&card->gdev->dev,
1679 "The HiperSockets device is not authorized to be a Bridge Port\n");
1680 break;
1681 default:
1682 rc = -EIO;
1683 }
1684 break;
1685 case IPA_RC_NOTSUPP:
1686 rc = -ENOSYS;
1687 break;
1688 case IPA_RC_UNSUPPORTED_COMMAND:
1689 rc = -ENOSYS;
1690 break;
1691 default:
1692 rc = -EIO;
1693 }
1694 if (rc) {
1695 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1696 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1697 }
1698 return rc;
1699}
1700
1701static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1702 struct qeth_reply *reply, unsigned long data)
1703{
1704 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1705 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1706 QETH_CARD_TEXT(card, 2, "brqsupcb");
1707 cbctl->ipa_rc = cmd->hdr.return_code;
1708 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1709 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1710 cbctl->data.supported =
1711 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1712 } else {
1713 cbctl->data.supported = 0;
1714 }
1715 return 0;
1716}
1717
1718/**
1719 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1720 * @card: qeth_card structure pointer.
1721 *
1722 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1723 * strucutre: card->options.sbp.supported_funcs.
1724 */
c044dc21 1725static void qeth_bridgeport_query_support(struct qeth_card *card)
b4d72c08
EC		 1726{
1727 struct qeth_cmd_buffer *iob;
1728 struct qeth_ipa_cmd *cmd;
1729 struct _qeth_sbp_cbctl cbctl;
1730
1731 QETH_CARD_TEXT(card, 2, "brqsuppo");
1732 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1733 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1734 cmd->data.sbp.hdr.cmdlength =
1735 sizeof(struct qeth_ipacmd_sbp_hdr) +
1736 sizeof(struct qeth_sbp_query_cmds_supp);
1737 cmd->data.sbp.hdr.command_code =
1738 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1739 cmd->data.sbp.hdr.used_total = 1;
1740 cmd->data.sbp.hdr.seq_no = 1;
1741 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1742 (void *)&cbctl) ||
1743 qeth_bridgeport_makerc(card, &cbctl,
1744 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1745 /* non-zero makerc signifies failure, and produce messages */
1746 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1747 return;
1748 }
1749 card->options.sbp.supported_funcs = cbctl.data.supported;
1750}
b4d72c08
EC		 1751
1752static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1753 struct qeth_reply *reply, unsigned long data)
1754{
1755 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1756 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1757 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1758
1759 QETH_CARD_TEXT(card, 2, "brqprtcb");
1760 cbctl->ipa_rc = cmd->hdr.return_code;
1761 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1762 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1763 return 0;
1764 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1765 cbctl->cmd_rc = 0xffff;
1766 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1767 return 0;
1768 }
1769 /* first entry contains the state of the local port */
1770 if (qports->num_entries > 0) {
1771 if (cbctl->data.qports.role)
1772 *cbctl->data.qports.role = qports->entry[0].role;
1773 if (cbctl->data.qports.state)
1774 *cbctl->data.qports.state = qports->entry[0].state;
1775 }
1776 return 0;
1777}
1778
1779/**
1780 * qeth_bridgeport_query_ports() - query local bridgeport status.
1781 * @card: qeth_card structure pointer.
1782 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1783 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1784 *
1785 * Returns negative errno-compatible error indication or 0 on success.
1786 *
1787 * 'role' and 'state' are not updated in case of hardware operation failure.
1788 */
1789int qeth_bridgeport_query_ports(struct qeth_card *card,
1790 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1791{
1792 int rc = 0;
1793 struct qeth_cmd_buffer *iob;
1794 struct qeth_ipa_cmd *cmd;
1795 struct _qeth_sbp_cbctl cbctl = {
1796 .data = {
1797 .qports = {
1798 .role = role,
1799 .state = state,
1800 },
1801 },
1802 };
1803
1804 QETH_CARD_TEXT(card, 2, "brqports");
1805 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1806 return -EOPNOTSUPP;
1807 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1808 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1809 cmd->data.sbp.hdr.cmdlength =
1810 sizeof(struct qeth_ipacmd_sbp_hdr);
1811 cmd->data.sbp.hdr.command_code =
1812 IPA_SBP_QUERY_BRIDGE_PORTS;
1813 cmd->data.sbp.hdr.used_total = 1;
1814 cmd->data.sbp.hdr.seq_no = 1;
1815 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1816 (void *)&cbctl);
1817 if (rc)
1818 return rc;
1819 rc = qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
1820 if (rc)
1821 return rc;
1822 return 0;
1823}
1824EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
1825
1826static int qeth_bridgeport_set_cb(struct qeth_card *card,
1827 struct qeth_reply *reply, unsigned long data)
1828{
1829 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1830 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1831 QETH_CARD_TEXT(card, 2, "brsetrcb");
1832 cbctl->ipa_rc = cmd->hdr.return_code;
1833 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1834 return 0;
1835}
1836
1837/**
1838 * qeth_bridgeport_setrole() - Assign primary role to the port.
1839 * @card: qeth_card structure pointer.
1840 * @role: Role to assign.
1841 *
1842 * Returns negative errno-compatible error indication or 0 on success.
1843 */
1844int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1845{
1846 int rc = 0;
1847 int cmdlength;
1848 struct qeth_cmd_buffer *iob;
1849 struct qeth_ipa_cmd *cmd;
1850 struct _qeth_sbp_cbctl cbctl;
1851 enum qeth_ipa_sbp_cmd setcmd;
1852
1853 QETH_CARD_TEXT(card, 2, "brsetrol");
1854 switch (role) {
1855 case QETH_SBP_ROLE_NONE:
1856 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1857 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1858 sizeof(struct qeth_sbp_reset_role);
1859 break;
1860 case QETH_SBP_ROLE_PRIMARY:
1861 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1862 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1863 sizeof(struct qeth_sbp_set_primary);
1864 break;
1865 case QETH_SBP_ROLE_SECONDARY:
1866 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1867 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1868 sizeof(struct qeth_sbp_set_secondary);
1869 break;
1870 default:
1871 return -EINVAL;
1872 }
1873 if (!(card->options.sbp.supported_funcs & setcmd))
1874 return -EOPNOTSUPP;
1875 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1876 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1877 cmd->data.sbp.hdr.cmdlength = cmdlength;
1878 cmd->data.sbp.hdr.command_code = setcmd;
1879 cmd->data.sbp.hdr.used_total = 1;
1880 cmd->data.sbp.hdr.seq_no = 1;
1881 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1882 (void *)&cbctl);
1883 if (rc)
1884 return rc;
1885 rc = qeth_bridgeport_makerc(card, &cbctl, setcmd);
1886 return rc;
1887}
1888
9f48b9db
EC		 1889/**
1890 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1891 * @card: qeth_card structure pointer, for debug messages.
1892 *
1893 * Returns negative errno-compatible error indication or 0 on success.
1894 */
1895static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1896{
1897 int rc;
1898
1899 if (pnso_rc == 0)
1900 switch (response) {
1901 case 0x0001:
1902 rc = 0;
1903 break;
1904 case 0x0004:
1905 case 0x0100:
1906 case 0x0106:
1907 rc = -ENOSYS;
1908 dev_err(&card->gdev->dev,
1909 "Setting address notification failed\n");
1910 break;
1911 case 0x0107:
1912 rc = -EAGAIN;
1913 break;
1914 default:
1915 rc = -EIO;
1916 }
1917 else
1918 rc = -EIO;
1919
1920 if (rc) {
1921 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1922 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1923 }
1924 return rc;
1925}
1926
1927static void qeth_bridgeport_an_set_cb(void *priv,
1928 enum qdio_brinfo_entry_type type, void *entry)
1929{
1930 struct qeth_card *card = (struct qeth_card *)priv;
1931 struct qdio_brinfo_entry_l2 *l2entry;
1932 u8 code;
1933
1934 if (type != l2_addr_lnid) {
1935 WARN_ON_ONCE(1);
1936 return;
1937 }
1938
1939 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1940 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1941 if (l2entry->addr_lnid.lnid)
1942 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1943 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1944 (struct net_if_token *)&l2entry->nit,
1945 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1946}
1947
1948/**
1949 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1950 * @card: qeth_card structure pointer.
1951 * @enable: 0 - disable, non-zero - enable notifications
1952 *
1953 * Returns negative errno-compatible error indication or 0 on success.
1954 *
1955 * On enable, emits a series of address notifications udev events for all
1956 * currently registered hosts.
1957 */
1958int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1959{
1960 int rc;
1961 u16 response;
1962 struct ccw_device *ddev;
1963 struct subchannel_id schid;
1964
1965 if (!card)
1966 return -EINVAL;
1967 if (!card->options.sbp.supported_funcs)
1968 return -EOPNOTSUPP;
1969 ddev = CARD_DDEV(card);
1970 ccw_device_get_schid(ddev, &schid);
1971
1972 if (enable) {
1973 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1974 rc = qdio_pnso_brinfo(schid, 1, &response,
1975 qeth_bridgeport_an_set_cb, card);
1976 } else
1977 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1978 return qeth_anset_makerc(card, rc, response);
1979}
1980EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
1981
4a71df50
FB		 1982module_init(qeth_l2_init);
1983module_exit(qeth_l2_exit);
1984MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1985MODULE_DESCRIPTION("qeth layer 2 discipline");
1986MODULE_LICENSE("GPL");
Linux kernel - Deliverables
This page took 0.671163 seconds and 5 git commands to generate.