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Merge tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
[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,
244 struct sk_buff *skb, int ipv, int cast_type)
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
FB		 727 struct sk_buff *new_skb = skb;
728 int ipv = qeth_get_ip_version(skb);
ce73e10e 729 int cast_type = qeth_l2_get_cast_type(card, skb);
4a71df50
FB		 730 struct qeth_qdio_out_q *queue = card->qdio.out_qs
731 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
732 int tx_bytes = skb->len;
683d718a
FB		 733 int data_offset = -1;
734 int elements_needed = 0;
735 int hd_len = 0;
4a71df50 736
4a71df50
FB		 737 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
738 card->stats.tx_carrier_errors++;
739 goto tx_drop;
740 }
741
742 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
743 (skb->protocol == htons(ETH_P_IPV6)))
744 goto tx_drop;
745
746 if (card->options.performance_stats) {
747 card->perf_stats.outbound_cnt++;
748 card->perf_stats.outbound_start_time = qeth_get_micros();
749 }
750 netif_stop_queue(dev);
751
4a71df50
FB		 752 if (card->info.type == QETH_CARD_TYPE_OSN)
753 hdr = (struct qeth_hdr *)skb->data;
754 else {
64ef8957 755 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 756 new_skb = skb;
757 data_offset = ETH_HLEN;
758 hd_len = ETH_HLEN;
759 hdr = kmem_cache_alloc(qeth_core_header_cache,
760 GFP_ATOMIC);
761 if (!hdr)
762 goto tx_drop;
763 elements_needed++;
764 skb_reset_mac_header(new_skb);
765 qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type);
766 hdr->hdr.l2.pkt_length = new_skb->len;
767 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
768 skb_mac_header(new_skb), ETH_HLEN);
769 } else {
770 /* create a clone with writeable headroom */
771 new_skb = skb_realloc_headroom(skb,
772 sizeof(struct qeth_hdr));
773 if (!new_skb)
774 goto tx_drop;
775 hdr = (struct qeth_hdr *)skb_push(new_skb,
f90b744e 776 sizeof(struct qeth_hdr));
683d718a
FB		 777 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
778 qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type);
779 }
4a71df50
FB		 780 }
781
065cc782 782 elements = qeth_get_elements_no(card, new_skb, elements_needed);
64ef8957
FB		 783 if (!elements) {
784 if (data_offset >= 0)
785 kmem_cache_free(qeth_core_header_cache, hdr);
786 goto tx_drop;
f61a0d05 787 }
4a71df50 788
51aa165c 789 if (card->info.type != QETH_CARD_TYPE_IQD) {
d4ae1f5e 790 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
51aa165c
FB		 791 sizeof(struct qeth_hdr_layer2)))
792 goto tx_drop;
4a71df50 793 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 794 elements);
51aa165c 795 } else
4a71df50 796 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 797 elements, data_offset, hd_len);
4a71df50
FB		 798 if (!rc) {
799 card->stats.tx_packets++;
800 card->stats.tx_bytes += tx_bytes;
801 if (new_skb != skb)
802 dev_kfree_skb_any(skb);
ec634fe3 803 rc = NETDEV_TX_OK;
4a71df50 804 } else {
683d718a
FB		 805 if (data_offset >= 0)
806 kmem_cache_free(qeth_core_header_cache, hdr);
807
4a71df50
FB		 808 if (rc == -EBUSY) {
809 if (new_skb != skb)
810 dev_kfree_skb_any(new_skb);
811 return NETDEV_TX_BUSY;
812 } else
813 goto tx_drop;
814 }
815
816 netif_wake_queue(dev);
817 if (card->options.performance_stats)
818 card->perf_stats.outbound_time += qeth_get_micros() -
819 card->perf_stats.outbound_start_time;
820 return rc;
821
822tx_drop:
823 card->stats.tx_dropped++;
824 card->stats.tx_errors++;
825 if ((new_skb != skb) && new_skb)
826 dev_kfree_skb_any(new_skb);
827 dev_kfree_skb_any(skb);
d0ec0f54 828 netif_wake_queue(dev);
4a71df50
FB		 829 return NETDEV_TX_OK;
830}
831
39423440 832static int __qeth_l2_open(struct net_device *dev)
4a71df50 833{
509e2562 834 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 835 int rc = 0;
4a71df50 836
847a50fd 837 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 838 if (card->state == CARD_STATE_UP)
839 return rc;
4a71df50
FB		 840 if (card->state != CARD_STATE_SOFTSETUP)
841 return -ENODEV;
842
843 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
844 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
847a50fd 845 QETH_CARD_TEXT(card, 4, "nomacadr");
4a71df50
FB		 846 return -EPERM;
847 }
848 card->data.state = CH_STATE_UP;
849 card->state = CARD_STATE_UP;
4a71df50
FB		 850 netif_start_queue(dev);
851
a1c3ed4c
FB		 852 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
853 napi_enable(&card->napi);
854 napi_schedule(&card->napi);
855 } else
856 rc = -EIO;
857 return rc;
4a71df50
FB		 858}
859
39423440
UB		 860static int qeth_l2_open(struct net_device *dev)
861{
862 struct qeth_card *card = dev->ml_priv;
863
864 QETH_CARD_TEXT(card, 5, "qethope_");
865 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
866 QETH_CARD_TEXT(card, 3, "openREC");
867 return -ERESTARTSYS;
868 }
869 return __qeth_l2_open(dev);
870}
871
4a71df50
FB		 872static int qeth_l2_stop(struct net_device *dev)
873{
509e2562 874 struct qeth_card *card = dev->ml_priv;
4a71df50 875
847a50fd 876 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 877 netif_tx_disable(dev);
a1c3ed4c 878 if (card->state == CARD_STATE_UP) {
4a71df50 879 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 880 napi_disable(&card->napi);
881 }
4a71df50
FB		 882 return 0;
883}
884
885static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
886{
887 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
888
b4d72c08 889 qeth_l2_create_device_attributes(&gdev->dev);
4a71df50
FB		 890 INIT_LIST_HEAD(&card->vid_list);
891 INIT_LIST_HEAD(&card->mc_list);
892 card->options.layer2 = 1;
1da74b1c 893 card->info.hwtrap = 0;
4a71df50
FB		 894 return 0;
895}
896
897static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
898{
899 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
900
b4d72c08 901 qeth_l2_remove_device_attributes(&cgdev->dev);
f2148565 902 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 903 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
904
70919e23 905 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 906 qeth_l2_set_offline(cgdev);
4a71df50
FB		 907
908 if (card->dev) {
909 unregister_netdev(card->dev);
910 card->dev = NULL;
911 }
4a71df50
FB		 912 return;
913}
914
0fc0b732 915static const struct ethtool_ops qeth_l2_ethtool_ops = {
4a71df50 916 .get_link = ethtool_op_get_link,
4a71df50
FB		 917 .get_strings = qeth_core_get_strings,
918 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 919 .get_sset_count = qeth_core_get_sset_count,
4a71df50 920 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 921 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 922};
923
0fc0b732 924static const struct ethtool_ops qeth_l2_osn_ops = {
4a71df50
FB		 925 .get_strings = qeth_core_get_strings,
926 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 927 .get_sset_count = qeth_core_get_sset_count,
4a71df50
FB		 928 .get_drvinfo = qeth_core_get_drvinfo,
929};
930
3d58cefd 931static const struct net_device_ops qeth_l2_netdev_ops = {
8403b13c
FB		 932 .ndo_open = qeth_l2_open,
933 .ndo_stop = qeth_l2_stop,
934 .ndo_get_stats = qeth_get_stats,
935 .ndo_start_xmit = qeth_l2_hard_start_xmit,
936 .ndo_validate_addr = eth_validate_addr,
afc4b13d 937 .ndo_set_rx_mode = qeth_l2_set_multicast_list,
8403b13c
FB		 938 .ndo_do_ioctl = qeth_l2_do_ioctl,
939 .ndo_set_mac_address = qeth_l2_set_mac_address,
940 .ndo_change_mtu = qeth_change_mtu,
941 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
942 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
943 .ndo_tx_timeout = qeth_tx_timeout,
944};
945
4a71df50
FB		 946static int qeth_l2_setup_netdev(struct qeth_card *card)
947{
948 switch (card->info.type) {
4a71df50
FB		 949 case QETH_CARD_TYPE_IQD:
950 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
951 break;
952 case QETH_CARD_TYPE_OSN:
953 card->dev = alloc_netdev(0, "osn%d", ether_setup);
954 card->dev->flags |= IFF_NOARP;
955 break;
956 default:
957 card->dev = alloc_etherdev(0);
958 }
959
960 if (!card->dev)
961 return -ENODEV;
962
509e2562 963 card->dev->ml_priv = card;
4a71df50 964 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 965 card->dev->mtu = card->info.initial_mtu;
8403b13c 966 card->dev->netdev_ops = &qeth_l2_netdev_ops;
4a71df50
FB		 967 if (card->info.type != QETH_CARD_TYPE_OSN)
968 SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops);
969 else
970 SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops);
f646968f 971 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4a71df50
FB		 972 card->info.broadcast_capable = 1;
973 qeth_l2_request_initial_mac(card);
974 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 975 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
4a71df50
FB		 976 return register_netdev(card->dev);
977}
978
979static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
980{
981 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
982 int rc = 0;
983 enum qeth_card_states recover_flag;
984
9dc48ccc 985 mutex_lock(&card->discipline_mutex);
c4949f07 986 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 987 QETH_DBF_TEXT(SETUP, 2, "setonlin");
988 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 989
4a71df50 990 recover_flag = card->state;
4a71df50
FB		 991 rc = qeth_core_hardsetup_card(card);
992 if (rc) {
d11ba0c4 993 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
aa909224 994 rc = -ENODEV;
4a71df50
FB		 995 goto out_remove;
996 }
c044dc21
EC		 997 qeth_bridgeport_query_support(card);
998 if (card->options.sbp.supported_funcs)
999 dev_info(&card->gdev->dev,
1000 "The device represents a HiperSockets Bridge Capable Port\n");
395672e0 1001 qeth_trace_features(card);
4a71df50 1002
aa909224
UB		 1003 if (!card->dev && qeth_l2_setup_netdev(card)) {
1004 rc = -ENODEV;
4a71df50 1005 goto out_remove;
aa909224 1006 }
4a71df50
FB		 1007
1008 if (card->info.type != QETH_CARD_TYPE_OSN)
1009 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1010
1da74b1c
FB		 1011 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1012 if (card->info.hwtrap &&
1013 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1014 card->info.hwtrap = 0;
1015 } else
1016 card->info.hwtrap = 0;
1017
b4d72c08
EC		 1018 qeth_l2_setup_bridgeport_attrs(card);
1019
4a71df50 1020 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 1021 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 1022 qeth_print_status_message(card);
1023
1024 /* softsetup */
d11ba0c4 1025 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 1026
1027 rc = qeth_send_startlan(card);
1028 if (rc) {
d11ba0c4 1029 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 1030 if (rc == 0xe080) {
74eacdb9
FB		 1031 dev_warn(&card->gdev->dev,
1032 "The LAN is offline\n");
4a71df50 1033 card->lan_online = 0;
2b6203bb 1034 goto contin;
4a71df50 1035 }
aa909224 1036 rc = -ENODEV;
f2148565 1037 goto out_remove;
4a71df50
FB		 1038 } else
1039 card->lan_online = 1;
1040
2b6203bb 1041contin:
5113fec0 1042 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
0f54761d 1043 (card->info.type == QETH_CARD_TYPE_OSX)) {
d64ecc22 1044 /* configure isolation level */
0f54761d
SR		 1045 rc = qeth_set_access_ctrl_online(card, 0);
1046 if (rc) {
1047 rc = -ENODEV;
1048 goto out_remove;
1049 }
1050 }
5113fec0
UB		 1051
1052 if (card->info.type != QETH_CARD_TYPE_OSN &&
1053 card->info.type != QETH_CARD_TYPE_OSM)
70919e23 1054 qeth_l2_process_vlans(card);
4a71df50
FB		 1055
1056 netif_tx_disable(card->dev);
1057
1058 rc = qeth_init_qdio_queues(card);
1059 if (rc) {
d11ba0c4 1060 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 1061 rc = -ENODEV;
4a71df50
FB		 1062 goto out_remove;
1063 }
1064 card->state = CARD_STATE_SOFTSETUP;
2b6203bb
UB		 1065 if (card->lan_online)
1066 netif_carrier_on(card->dev);
1067 else
1068 netif_carrier_off(card->dev);
4a71df50
FB		 1069
1070 qeth_set_allowed_threads(card, 0xffffffff, 0);
1071 if (recover_flag == CARD_STATE_RECOVER) {
1072 if (recovery_mode &&
1073 card->info.type != QETH_CARD_TYPE_OSN) {
39423440 1074 __qeth_l2_open(card->dev);
4a71df50
FB		 1075 } else {
1076 rtnl_lock();
1077 dev_open(card->dev);
1078 rtnl_unlock();
1079 }
1080 /* this also sets saved unicast addresses */
1081 qeth_l2_set_multicast_list(card->dev);
1082 }
1083 /* let user_space know that device is online */
1084 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1085 mutex_unlock(&card->conf_mutex);
9dc48ccc 1086 mutex_unlock(&card->discipline_mutex);
4a71df50 1087 return 0;
aa909224 1088
4a71df50 1089out_remove:
4a71df50
FB		 1090 qeth_l2_stop_card(card, 0);
1091 ccw_device_set_offline(CARD_DDEV(card));
1092 ccw_device_set_offline(CARD_WDEV(card));
1093 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 1094 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1095 if (recover_flag == CARD_STATE_RECOVER)
1096 card->state = CARD_STATE_RECOVER;
1097 else
1098 card->state = CARD_STATE_DOWN;
c4949f07 1099 mutex_unlock(&card->conf_mutex);
9dc48ccc 1100 mutex_unlock(&card->discipline_mutex);
aa909224 1101 return rc;
4a71df50
FB		 1102}
1103
1104static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1105{
1106 return __qeth_l2_set_online(gdev, 0);
1107}
1108
1109static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1110 int recovery_mode)
1111{
1112 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1113 int rc = 0, rc2 = 0, rc3 = 0;
1114 enum qeth_card_states recover_flag;
1115
9dc48ccc 1116 mutex_lock(&card->discipline_mutex);
c4949f07 1117 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1118 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1119 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 1120
1121 if (card->dev && netif_carrier_ok(card->dev))
1122 netif_carrier_off(card->dev);
1123 recover_flag = card->state;
1da74b1c
FB		 1124 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1125 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1126 card->info.hwtrap = 1;
1127 }
0f5623c9 1128 qeth_l2_stop_card(card, recovery_mode);
4a71df50
FB		 1129 rc = ccw_device_set_offline(CARD_DDEV(card));
1130 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1131 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1132 if (!rc)
1133 rc = (rc2) ? rc2 : rc3;
1134 if (rc)
d11ba0c4 1135 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 1136 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1137 if (recover_flag == CARD_STATE_UP)
1138 card->state = CARD_STATE_RECOVER;
1139 /* let user_space know that device is offline */
1140 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1141 mutex_unlock(&card->conf_mutex);
9dc48ccc 1142 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 1143 return 0;
1144}
1145
1146static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1147{
1148 return __qeth_l2_set_offline(cgdev, 0);
1149}
1150
1151static int qeth_l2_recover(void *ptr)
1152{
1153 struct qeth_card *card;
1154 int rc = 0;
1155
1156 card = (struct qeth_card *) ptr;
847a50fd 1157 QETH_CARD_TEXT(card, 2, "recover1");
4a71df50
FB		 1158 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1159 return 0;
847a50fd 1160 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 1161 dev_warn(&card->gdev->dev,
1162 "A recovery process has been started for the device\n");
65d8013c 1163 qeth_set_recovery_task(card);
4a71df50
FB		 1164 __qeth_l2_set_offline(card->gdev, 1);
1165 rc = __qeth_l2_set_online(card->gdev, 1);
4a71df50 1166 if (!rc)
74eacdb9
FB		 1167 dev_info(&card->gdev->dev,
1168 "Device successfully recovered!\n");
28a7e4c9 1169 else {
0f54761d
SR		 1170 qeth_close_dev(card);
1171 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 1172 "failed to recover an error on the device\n");
28a7e4c9 1173 }
65d8013c 1174 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 1175 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1176 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 1177 return 0;
1178}
1179
1180static int __init qeth_l2_init(void)
1181{
74eacdb9 1182 pr_info("register layer 2 discipline\n");
4a71df50
FB		 1183 return 0;
1184}
1185
1186static void __exit qeth_l2_exit(void)
1187{
74eacdb9 1188 pr_info("unregister layer 2 discipline\n");
4a71df50
FB		 1189}
1190
1191static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1192{
1193 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 1194 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 1195 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1196 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 1197 qeth_qdio_clear_card(card, 0);
1198 qeth_clear_qdio_buffers(card);
22ae2790 1199 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1200}
1201
bbcfcdc8
FB		 1202static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1203{
1204 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1205
1206 if (card->dev)
1207 netif_device_detach(card->dev);
1208 qeth_set_allowed_threads(card, 0, 1);
1209 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1210 if (gdev->state == CCWGROUP_OFFLINE)
1211 return 0;
1212 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 1213 if (card->info.hwtrap)
1214 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 1215 __qeth_l2_set_offline(card->gdev, 1);
1216 } else
1217 __qeth_l2_set_offline(card->gdev, 0);
1218 return 0;
1219}
1220
1221static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1222{
1223 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1224 int rc = 0;
1225
1226 if (gdev->state == CCWGROUP_OFFLINE)
1227 goto out;
1228
1229 if (card->state == CARD_STATE_RECOVER) {
1230 rc = __qeth_l2_set_online(card->gdev, 1);
1231 if (rc) {
869da90b
UB		 1232 rtnl_lock();
1233 dev_close(card->dev);
1234 rtnl_unlock();
bbcfcdc8
FB		 1235 }
1236 } else
1237 rc = __qeth_l2_set_online(card->gdev, 0);
1238out:
1239 qeth_set_allowed_threads(card, 0xffffffff, 0);
1240 if (card->dev)
1241 netif_device_attach(card->dev);
1242 if (rc)
1243 dev_warn(&card->gdev->dev, "The qeth device driver "
1244 "failed to recover an error on the device\n");
1245 return rc;
1246}
1247
c044dc21
EC		 1248/* Returns zero if the command is successfully "consumed" */
1249static int qeth_l2_control_event(struct qeth_card *card,
1250 struct qeth_ipa_cmd *cmd)
1251{
1252 switch (cmd->hdr.command) {
1253 case IPA_CMD_SETBRIDGEPORT:
1254 if (cmd->data.sbp.hdr.command_code ==
1255 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1256 qeth_bridge_state_change(card, cmd);
1257 return 0;
1258 } else
1259 return 1;
1260 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1261 qeth_bridge_host_event(card, cmd);
1262 return 0;
1263 default:
1264 return 1;
1265 }
1266}
1267
c041f2d4
SO		 1268struct qeth_discipline qeth_l2_discipline = {
1269 .start_poll = qeth_qdio_start_poll,
1270 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1271 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1272 .recover = qeth_l2_recover,
1273 .setup = qeth_l2_probe_device,
4a71df50
FB		 1274 .remove = qeth_l2_remove_device,
1275 .set_online = qeth_l2_set_online,
1276 .set_offline = qeth_l2_set_offline,
1277 .shutdown = qeth_l2_shutdown,
bbcfcdc8
FB		 1278 .freeze = qeth_l2_pm_suspend,
1279 .thaw = qeth_l2_pm_resume,
1280 .restore = qeth_l2_pm_resume,
c044dc21 1281 .control_event_handler = qeth_l2_control_event,
4a71df50 1282};
c041f2d4 1283EXPORT_SYMBOL_GPL(qeth_l2_discipline);
4a71df50
FB		 1284
1285static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1286 struct qeth_cmd_buffer *iob)
1287{
1288 unsigned long flags;
1289 int rc = 0;
1290
847a50fd 1291 QETH_CARD_TEXT(card, 5, "osndctrd");
4a71df50
FB		 1292
1293 wait_event(card->wait_q,
1294 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1295 qeth_prepare_control_data(card, len, iob);
847a50fd 1296 QETH_CARD_TEXT(card, 6, "osnoirqp");
4a71df50
FB		 1297 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1298 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1299 (addr_t) iob, 0, 0);
1300 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1301 if (rc) {
14cc21b6 1302 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4a71df50 1303 "ccw_device_start rc = %i\n", rc);
847a50fd 1304 QETH_CARD_TEXT_(card, 2, " err%d", rc);
4a71df50
FB		 1305 qeth_release_buffer(iob->channel, iob);
1306 atomic_set(&card->write.irq_pending, 0);
1307 wake_up(&card->wait_q);
1308 }
1309 return rc;
1310}
1311
1312static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1313 struct qeth_cmd_buffer *iob, int data_len)
1314{
1315 u16 s1, s2;
1316
847a50fd 1317 QETH_CARD_TEXT(card, 4, "osndipa");
4a71df50
FB		 1318
1319 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1320 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1321 s2 = (u16)data_len;
1322 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1323 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1324 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1325 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1326 return qeth_osn_send_control_data(card, s1, iob);
1327}
1328
1329int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1330{
1331 struct qeth_cmd_buffer *iob;
1332 struct qeth_card *card;
1333 int rc;
1334
4a71df50
FB		 1335 if (!dev)
1336 return -ENODEV;
509e2562 1337 card = dev->ml_priv;
4a71df50
FB		 1338 if (!card)
1339 return -ENODEV;
847a50fd 1340 QETH_CARD_TEXT(card, 2, "osnsdmc");
4a71df50
FB		 1341 if ((card->state != CARD_STATE_UP) &&
1342 (card->state != CARD_STATE_SOFTSETUP))
1343 return -ENODEV;
1344 iob = qeth_wait_for_buffer(&card->write);
1345 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1346 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1347 return rc;
1348}
1349EXPORT_SYMBOL(qeth_osn_assist);
1350
1351int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1352 int (*assist_cb)(struct net_device *, void *),
1353 int (*data_cb)(struct sk_buff *))
1354{
1355 struct qeth_card *card;
1356
4a71df50
FB		 1357 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1358 if (*dev == NULL)
1359 return -ENODEV;
509e2562 1360 card = (*dev)->ml_priv;
4a71df50
FB		 1361 if (!card)
1362 return -ENODEV;
847a50fd 1363 QETH_CARD_TEXT(card, 2, "osnreg");
4a71df50
FB		 1364 if ((assist_cb == NULL) || (data_cb == NULL))
1365 return -EINVAL;
1366 card->osn_info.assist_cb = assist_cb;
1367 card->osn_info.data_cb = data_cb;
1368 return 0;
1369}
1370EXPORT_SYMBOL(qeth_osn_register);
1371
1372void qeth_osn_deregister(struct net_device *dev)
1373{
1374 struct qeth_card *card;
1375
4a71df50
FB		 1376 if (!dev)
1377 return;
509e2562 1378 card = dev->ml_priv;
4a71df50
FB		 1379 if (!card)
1380 return;
847a50fd 1381 QETH_CARD_TEXT(card, 2, "osndereg");
4a71df50
FB		 1382 card->osn_info.assist_cb = NULL;
1383 card->osn_info.data_cb = NULL;
1384 return;
1385}
1386EXPORT_SYMBOL(qeth_osn_deregister);
1387
b4d72c08
EC		 1388/* SETBRIDGEPORT support, async notifications */
1389
9f48b9db
EC		 1390enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1391
1392/**
1393 * qeth_bridge_emit_host_event() - bridgeport address change notification
1394 * @card: qeth_card structure pointer, for udev events.
1395 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1396 * and reset token and addr_lnid are unused and may be NULL.
1397 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1398 * object, 0 - addition of an object.
1399 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1400 * @token: "network token" structure identifying physical address of the port.
1401 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1402 *
1403 * This function is called when registrations and deregistrations are
1404 * reported by the hardware, and also when notifications are enabled -
1405 * for all currently registered addresses.
1406 */
1407static void qeth_bridge_emit_host_event(struct qeth_card *card,
1408 enum qeth_an_event_type evtype,
1409 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1410{
1411 char str[7][32];
1412 char *env[8];
1413 int i = 0;
1414
1415 switch (evtype) {
1416 case anev_reg_unreg:
1417 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1418 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1419 ? "deregister" : "register");
1420 env[i] = str[i]; i++;
1421 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1422 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1423 addr_lnid->lnid);
1424 env[i] = str[i]; i++;
1425 }
1426 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
1427 snprintf(str[i], sizeof(str[i]), "MAC=%pM6",
1428 &addr_lnid->mac);
1429 env[i] = str[i]; i++;
1430 }
1431 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1432 token->cssid, token->ssid, token->devnum);
1433 env[i] = str[i]; i++;
1434 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1435 env[i] = str[i]; i++;
1436 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1437 token->chpid);
1438 env[i] = str[i]; i++;
1439 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1440 env[i] = str[i]; i++;
1441 break;
1442 case anev_abort:
1443 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1444 env[i] = str[i]; i++;
1445 break;
1446 case anev_reset:
1447 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1448 env[i] = str[i]; i++;
1449 break;
1450 }
1451 env[i] = NULL;
1452 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1453}
1454
b4d72c08
EC		 1455struct qeth_bridge_state_data {
1456 struct work_struct worker;
1457 struct qeth_card *card;
1458 struct qeth_sbp_state_change qports;
1459};
1460
1461static void qeth_bridge_state_change_worker(struct work_struct *work)
1462{
1463 struct qeth_bridge_state_data *data =
1464 container_of(work, struct qeth_bridge_state_data, worker);
1465 /* We are only interested in the first entry - local port */
1466 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1467 char env_locrem[32];
1468 char env_role[32];
1469 char env_state[32];
1470 char *env[] = {
1471 env_locrem,
1472 env_role,
1473 env_state,
1474 NULL
1475 };
1476
1477 /* Role should not change by itself, but if it did, */
1478 /* information from the hardware is authoritative. */
1479 mutex_lock(&data->card->conf_mutex);
1480 data->card->options.sbp.role = entry->role;
1481 mutex_unlock(&data->card->conf_mutex);
1482
1483 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1484 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1485 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1486 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1487 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1488 "<INVALID>");
1489 snprintf(env_state, sizeof(env_state), "STATE=%s",
1490 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1491 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1492 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1493 "<INVALID>");
1494 kobject_uevent_env(&data->card->gdev->dev.kobj,
1495 KOBJ_CHANGE, env);
1496 kfree(data);
1497}
1498
c044dc21
EC		 1499static void qeth_bridge_state_change(struct qeth_card *card,
1500 struct qeth_ipa_cmd *cmd)
b4d72c08
EC		 1501{
1502 struct qeth_sbp_state_change *qports =
1503 &cmd->data.sbp.data.state_change;
1504 struct qeth_bridge_state_data *data;
1505 int extrasize;
1506
1507 QETH_CARD_TEXT(card, 2, "brstchng");
1508 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1509 QETH_CARD_TEXT_(card, 2, "BPsz%.8d", qports->entry_length);
1510 return;
1511 }
1512 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1513 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1514 GFP_ATOMIC);
1515 if (!data) {
1516 QETH_CARD_TEXT(card, 2, "BPSalloc");
1517 return;
1518 }
1519 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1520 data->card = card;
1521 memcpy(&data->qports, qports,
1522 sizeof(struct qeth_sbp_state_change) + extrasize);
1523 queue_work(qeth_wq, &data->worker);
1524}
b4d72c08 1525
9f48b9db
EC		 1526struct qeth_bridge_host_data {
1527 struct work_struct worker;
1528 struct qeth_card *card;
1529 struct qeth_ipacmd_addr_change hostevs;
1530};
1531
1532static void qeth_bridge_host_event_worker(struct work_struct *work)
1533{
1534 struct qeth_bridge_host_data *data =
1535 container_of(work, struct qeth_bridge_host_data, worker);
1536 int i;
1537
1538 if (data->hostevs.lost_event_mask) {
1539 dev_info(&data->card->gdev->dev,
1540"Address notification from the HiperSockets Bridge Port stopped %s (%s)\n",
1541 data->card->dev->name,
1542 (data->hostevs.lost_event_mask == 0x01)
1543 ? "Overflow"
1544 : (data->hostevs.lost_event_mask == 0x02)
1545 ? "Bridge port state change"
1546 : "Unknown reason");
1547 mutex_lock(&data->card->conf_mutex);
1548 data->card->options.sbp.hostnotification = 0;
1549 mutex_unlock(&data->card->conf_mutex);
1550 qeth_bridge_emit_host_event(data->card, anev_abort,
1551 0, NULL, NULL);
1552 } else
1553 for (i = 0; i < data->hostevs.num_entries; i++) {
1554 struct qeth_ipacmd_addr_change_entry *entry =
1555 &data->hostevs.entry[i];
1556 qeth_bridge_emit_host_event(data->card,
1557 anev_reg_unreg,
1558 entry->change_code,
1559 &entry->token, &entry->addr_lnid);
1560 }
1561 kfree(data);
1562}
1563
c044dc21
EC		 1564static void qeth_bridge_host_event(struct qeth_card *card,
1565 struct qeth_ipa_cmd *cmd)
9f48b9db
EC		 1566{
1567 struct qeth_ipacmd_addr_change *hostevs =
1568 &cmd->data.addrchange;
1569 struct qeth_bridge_host_data *data;
1570 int extrasize;
1571
1572 QETH_CARD_TEXT(card, 2, "brhostev");
1573 if (cmd->hdr.return_code != 0x0000) {
1574 if (cmd->hdr.return_code == 0x0010) {
1575 if (hostevs->lost_event_mask == 0x00)
1576 hostevs->lost_event_mask = 0xff;
1577 } else {
1578 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1579 cmd->hdr.return_code);
1580 return;
1581 }
1582 }
1583 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1584 hostevs->num_entries;
1585 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1586 GFP_ATOMIC);
1587 if (!data) {
1588 QETH_CARD_TEXT(card, 2, "BPHalloc");
1589 return;
1590 }
1591 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1592 data->card = card;
1593 memcpy(&data->hostevs, hostevs,
1594 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1595 queue_work(qeth_wq, &data->worker);
1596}
9f48b9db 1597
b4d72c08
EC		 1598/* SETBRIDGEPORT support; sending commands */
1599
1600struct _qeth_sbp_cbctl {
1601 u16 ipa_rc;
1602 u16 cmd_rc;
1603 union {
1604 u32 supported;
1605 struct {
1606 enum qeth_sbp_roles *role;
1607 enum qeth_sbp_states *state;
1608 } qports;
1609 } data;
1610};
1611
1612/**
1613 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1614 * @card: qeth_card structure pointer, for debug messages.
1615 * @cbctl: state structure with hardware return codes.
1616 * @setcmd: IPA command code
1617 *
1618 * Returns negative errno-compatible error indication or 0 on success.
1619 */
1620static int qeth_bridgeport_makerc(struct qeth_card *card,
1621 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1622{
1623 int rc;
1624
1625 switch (cbctl->ipa_rc) {
1626 case IPA_RC_SUCCESS:
1627 switch (cbctl->cmd_rc) {
1628 case 0x0000:
1629 rc = 0;
1630 break;
1631 case 0x0004:
1632 rc = -ENOSYS;
1633 break;
1634 case 0x000C: /* Not configured as bridge Port */
1635 rc = -ENODEV; /* maybe not the best code here? */
1636 dev_err(&card->gdev->dev,
1637 "The HiperSockets device is not configured as a Bridge Port\n");
1638 break;
1639 case 0x0014: /* Another device is Primary */
1640 switch (setcmd) {
1641 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1642 rc = -EEXIST;
1643 dev_err(&card->gdev->dev,
1644 "The HiperSockets LAN already has a primary Bridge Port\n");
1645 break;
1646 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1647 rc = -EBUSY;
1648 dev_err(&card->gdev->dev,
1649 "The HiperSockets device is already a primary Bridge Port\n");
1650 break;
1651 default:
1652 rc = -EIO;
1653 }
1654 break;
1655 case 0x0018: /* This device is currently Secondary */
1656 rc = -EBUSY;
1657 dev_err(&card->gdev->dev,
1658 "The HiperSockets device is already a secondary Bridge Port\n");
1659 break;
1660 case 0x001C: /* Limit for Secondary devices reached */
1661 rc = -EEXIST;
1662 dev_err(&card->gdev->dev,
1663 "The HiperSockets LAN cannot have more secondary Bridge Ports\n");
1664 break;
1665 case 0x0024: /* This device is currently Primary */
1666 rc = -EBUSY;
1667 dev_err(&card->gdev->dev,
1668 "The HiperSockets device is already a primary Bridge Port\n");
1669 break;
1670 case 0x0020: /* Not authorized by zManager */
1671 rc = -EACCES;
1672 dev_err(&card->gdev->dev,
1673 "The HiperSockets device is not authorized to be a Bridge Port\n");
1674 break;
1675 default:
1676 rc = -EIO;
1677 }
1678 break;
1679 case IPA_RC_NOTSUPP:
1680 rc = -ENOSYS;
1681 break;
1682 case IPA_RC_UNSUPPORTED_COMMAND:
1683 rc = -ENOSYS;
1684 break;
1685 default:
1686 rc = -EIO;
1687 }
1688 if (rc) {
1689 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1690 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1691 }
1692 return rc;
1693}
1694
1695static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1696 struct qeth_reply *reply, unsigned long data)
1697{
1698 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1699 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1700 QETH_CARD_TEXT(card, 2, "brqsupcb");
1701 cbctl->ipa_rc = cmd->hdr.return_code;
1702 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1703 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1704 cbctl->data.supported =
1705 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1706 } else {
1707 cbctl->data.supported = 0;
1708 }
1709 return 0;
1710}
1711
1712/**
1713 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1714 * @card: qeth_card structure pointer.
1715 *
1716 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1717 * strucutre: card->options.sbp.supported_funcs.
1718 */
c044dc21 1719static void qeth_bridgeport_query_support(struct qeth_card *card)
b4d72c08
EC		 1720{
1721 struct qeth_cmd_buffer *iob;
1722 struct qeth_ipa_cmd *cmd;
1723 struct _qeth_sbp_cbctl cbctl;
1724
1725 QETH_CARD_TEXT(card, 2, "brqsuppo");
1726 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1727 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1728 cmd->data.sbp.hdr.cmdlength =
1729 sizeof(struct qeth_ipacmd_sbp_hdr) +
1730 sizeof(struct qeth_sbp_query_cmds_supp);
1731 cmd->data.sbp.hdr.command_code =
1732 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1733 cmd->data.sbp.hdr.used_total = 1;
1734 cmd->data.sbp.hdr.seq_no = 1;
1735 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1736 (void *)&cbctl) ||
1737 qeth_bridgeport_makerc(card, &cbctl,
1738 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1739 /* non-zero makerc signifies failure, and produce messages */
1740 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1741 return;
1742 }
1743 card->options.sbp.supported_funcs = cbctl.data.supported;
1744}
b4d72c08
EC		 1745
1746static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1747 struct qeth_reply *reply, unsigned long data)
1748{
1749 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1750 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1751 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1752
1753 QETH_CARD_TEXT(card, 2, "brqprtcb");
1754 cbctl->ipa_rc = cmd->hdr.return_code;
1755 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1756 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1757 return 0;
1758 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1759 cbctl->cmd_rc = 0xffff;
1760 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1761 return 0;
1762 }
1763 /* first entry contains the state of the local port */
1764 if (qports->num_entries > 0) {
1765 if (cbctl->data.qports.role)
1766 *cbctl->data.qports.role = qports->entry[0].role;
1767 if (cbctl->data.qports.state)
1768 *cbctl->data.qports.state = qports->entry[0].state;
1769 }
1770 return 0;
1771}
1772
1773/**
1774 * qeth_bridgeport_query_ports() - query local bridgeport status.
1775 * @card: qeth_card structure pointer.
1776 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1777 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1778 *
1779 * Returns negative errno-compatible error indication or 0 on success.
1780 *
1781 * 'role' and 'state' are not updated in case of hardware operation failure.
1782 */
1783int qeth_bridgeport_query_ports(struct qeth_card *card,
1784 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1785{
1786 int rc = 0;
1787 struct qeth_cmd_buffer *iob;
1788 struct qeth_ipa_cmd *cmd;
1789 struct _qeth_sbp_cbctl cbctl = {
1790 .data = {
1791 .qports = {
1792 .role = role,
1793 .state = state,
1794 },
1795 },
1796 };
1797
1798 QETH_CARD_TEXT(card, 2, "brqports");
1799 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1800 return -EOPNOTSUPP;
1801 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1802 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1803 cmd->data.sbp.hdr.cmdlength =
1804 sizeof(struct qeth_ipacmd_sbp_hdr);
1805 cmd->data.sbp.hdr.command_code =
1806 IPA_SBP_QUERY_BRIDGE_PORTS;
1807 cmd->data.sbp.hdr.used_total = 1;
1808 cmd->data.sbp.hdr.seq_no = 1;
1809 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
1810 (void *)&cbctl);
1811 if (rc)
1812 return rc;
1813 rc = qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
1814 if (rc)
1815 return rc;
1816 return 0;
1817}
1818EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
1819
1820static int qeth_bridgeport_set_cb(struct qeth_card *card,
1821 struct qeth_reply *reply, unsigned long data)
1822{
1823 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
1824 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1825 QETH_CARD_TEXT(card, 2, "brsetrcb");
1826 cbctl->ipa_rc = cmd->hdr.return_code;
1827 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1828 return 0;
1829}
1830
1831/**
1832 * qeth_bridgeport_setrole() - Assign primary role to the port.
1833 * @card: qeth_card structure pointer.
1834 * @role: Role to assign.
1835 *
1836 * Returns negative errno-compatible error indication or 0 on success.
1837 */
1838int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
1839{
1840 int rc = 0;
1841 int cmdlength;
1842 struct qeth_cmd_buffer *iob;
1843 struct qeth_ipa_cmd *cmd;
1844 struct _qeth_sbp_cbctl cbctl;
1845 enum qeth_ipa_sbp_cmd setcmd;
1846
1847 QETH_CARD_TEXT(card, 2, "brsetrol");
1848 switch (role) {
1849 case QETH_SBP_ROLE_NONE:
1850 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
1851 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1852 sizeof(struct qeth_sbp_reset_role);
1853 break;
1854 case QETH_SBP_ROLE_PRIMARY:
1855 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
1856 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1857 sizeof(struct qeth_sbp_set_primary);
1858 break;
1859 case QETH_SBP_ROLE_SECONDARY:
1860 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
1861 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
1862 sizeof(struct qeth_sbp_set_secondary);
1863 break;
1864 default:
1865 return -EINVAL;
1866 }
1867 if (!(card->options.sbp.supported_funcs & setcmd))
1868 return -EOPNOTSUPP;
1869 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0);
1870 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1871 cmd->data.sbp.hdr.cmdlength = cmdlength;
1872 cmd->data.sbp.hdr.command_code = setcmd;
1873 cmd->data.sbp.hdr.used_total = 1;
1874 cmd->data.sbp.hdr.seq_no = 1;
1875 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
1876 (void *)&cbctl);
1877 if (rc)
1878 return rc;
1879 rc = qeth_bridgeport_makerc(card, &cbctl, setcmd);
1880 return rc;
1881}
1882
9f48b9db
EC		 1883/**
1884 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
1885 * @card: qeth_card structure pointer, for debug messages.
1886 *
1887 * Returns negative errno-compatible error indication or 0 on success.
1888 */
1889static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
1890{
1891 int rc;
1892
1893 if (pnso_rc == 0)
1894 switch (response) {
1895 case 0x0001:
1896 rc = 0;
1897 break;
1898 case 0x0004:
1899 case 0x0100:
1900 case 0x0106:
1901 rc = -ENOSYS;
1902 dev_err(&card->gdev->dev,
1903 "Setting address notification failed\n");
1904 break;
1905 case 0x0107:
1906 rc = -EAGAIN;
1907 break;
1908 default:
1909 rc = -EIO;
1910 }
1911 else
1912 rc = -EIO;
1913
1914 if (rc) {
1915 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
1916 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
1917 }
1918 return rc;
1919}
1920
1921static void qeth_bridgeport_an_set_cb(void *priv,
1922 enum qdio_brinfo_entry_type type, void *entry)
1923{
1924 struct qeth_card *card = (struct qeth_card *)priv;
1925 struct qdio_brinfo_entry_l2 *l2entry;
1926 u8 code;
1927
1928 if (type != l2_addr_lnid) {
1929 WARN_ON_ONCE(1);
1930 return;
1931 }
1932
1933 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
1934 code = IPA_ADDR_CHANGE_CODE_MACADDR;
1935 if (l2entry->addr_lnid.lnid)
1936 code |= IPA_ADDR_CHANGE_CODE_VLANID;
1937 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
1938 (struct net_if_token *)&l2entry->nit,
1939 (struct mac_addr_lnid *)&l2entry->addr_lnid);
1940}
1941
1942/**
1943 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
1944 * @card: qeth_card structure pointer.
1945 * @enable: 0 - disable, non-zero - enable notifications
1946 *
1947 * Returns negative errno-compatible error indication or 0 on success.
1948 *
1949 * On enable, emits a series of address notifications udev events for all
1950 * currently registered hosts.
1951 */
1952int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
1953{
1954 int rc;
1955 u16 response;
1956 struct ccw_device *ddev;
1957 struct subchannel_id schid;
1958
1959 if (!card)
1960 return -EINVAL;
1961 if (!card->options.sbp.supported_funcs)
1962 return -EOPNOTSUPP;
1963 ddev = CARD_DDEV(card);
1964 ccw_device_get_schid(ddev, &schid);
1965
1966 if (enable) {
1967 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
1968 rc = qdio_pnso_brinfo(schid, 1, &response,
1969 qeth_bridgeport_an_set_cb, card);
1970 } else
1971 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
1972 return qeth_anset_makerc(card, rc, response);
1973}
1974EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
1975
4a71df50
FB		 1976module_init(qeth_l2_init);
1977module_exit(qeth_l2_exit);
1978MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
1979MODULE_DESCRIPTION("qeth layer 2 discipline");
1980MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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