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qeth: enable scatter/gather by default
[mirror_ubuntu-artful-kernel.git] / drivers / s390 / net / qeth_l2_main.c
CommitLineData
4a71df50 1/*
bbcfcdc8 2 * Copyright IBM Corp. 2007, 2009
4a71df50
FB		 3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
7 */
8
74eacdb9
FB		 9#define KMSG_COMPONENT "qeth"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
4a71df50
FB		 12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/string.h>
15#include <linux/errno.h>
16#include <linux/kernel.h>
5a0e3ad6 17#include <linux/slab.h>
4a71df50
FB		 18#include <linux/etherdevice.h>
19#include <linux/mii.h>
20#include <linux/ip.h>
ccffad25 21#include <linux/list.h>
fe5c8028
LD		 22#include <linux/hash.h>
23#include <linux/hashtable.h>
24#include <linux/string.h>
4a71df50 25#include "qeth_core.h"
b4d72c08 26#include "qeth_l2.h"
4a71df50 27
4a71df50
FB		 28static int qeth_l2_set_offline(struct ccwgroup_device *);
29static int qeth_l2_stop(struct net_device *);
30static int qeth_l2_send_delmac(struct qeth_card *, __u8 *);
31static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *,
efbbc1d5 32 enum qeth_ipa_cmds);
fe5c8028 33static void qeth_l2_set_rx_mode(struct net_device *);
4a71df50 34static int qeth_l2_recover(void *);
c044dc21
EC		 35static void qeth_bridgeport_query_support(struct qeth_card *card);
36static void qeth_bridge_state_change(struct qeth_card *card,
37 struct qeth_ipa_cmd *cmd);
38static void qeth_bridge_host_event(struct qeth_card *card,
39 struct qeth_ipa_cmd *cmd);
4a71df50
FB		 40
41static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
42{
509e2562 43 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 44 struct mii_ioctl_data *mii_data;
45 int rc = 0;
46
47 if (!card)
48 return -ENODEV;
49
c3521254 50 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 51 return -ENODEV;
52
53 if (card->info.type == QETH_CARD_TYPE_OSN)
54 return -EPERM;
55
56 switch (cmd) {
57 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
58 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
59 break;
60 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 61 if ((card->info.type == QETH_CARD_TYPE_OSD ||
62 card->info.type == QETH_CARD_TYPE_OSM ||
63 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 64 !card->info.guestlan)
65 return 1;
66 return 0;
67 break;
68 case SIOCGMIIPHY:
69 mii_data = if_mii(rq);
70 mii_data->phy_id = 0;
71 break;
72 case SIOCGMIIREG:
73 mii_data = if_mii(rq);
74 if (mii_data->phy_id != 0)
75 rc = -EINVAL;
76 else
77 mii_data->val_out = qeth_mdio_read(dev,
78 mii_data->phy_id, mii_data->reg_num);
79 break;
c3ab96f3
FB		 80 case SIOC_QETH_QUERY_OAT:
81 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
82 break;
4a71df50
FB		 83 default:
84 rc = -EOPNOTSUPP;
85 }
86 if (rc)
847a50fd 87 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 88 return rc;
89}
90
91static int qeth_l2_verify_dev(struct net_device *dev)
92{
93 struct qeth_card *card;
94 unsigned long flags;
95 int rc = 0;
96
97 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
98 list_for_each_entry(card, &qeth_core_card_list.list, list) {
99 if (card->dev == dev) {
100 rc = QETH_REAL_CARD;
101 break;
102 }
103 }
104 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
105
106 return rc;
107}
108
109static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no)
110{
111 struct qeth_card *card;
112 struct net_device *ndev;
f06f6f32 113 __u16 temp_dev_no;
4a71df50 114 unsigned long flags;
f06f6f32 115 struct ccw_dev_id read_devid;
4a71df50
FB		 116
117 ndev = NULL;
118 memcpy(&temp_dev_no, read_dev_no, 2);
119 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
120 list_for_each_entry(card, &qeth_core_card_list.list, list) {
f06f6f32
CH		 121 ccw_device_get_id(CARD_RDEV(card), &read_devid);
122 if (read_devid.devno == temp_dev_no) {
4a71df50
FB		 123 ndev = card->dev;
124 break;
125 }
126 }
127 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
128 return ndev;
129}
130
efbbc1d5 131static int qeth_setdel_makerc(struct qeth_card *card, int retcode)
4a71df50 132{
efbbc1d5 133 int rc;
4a71df50 134
efbbc1d5 135 if (retcode)
1aec42bc 136 QETH_CARD_TEXT_(card, 2, "err%04x", retcode);
efbbc1d5
EC		 137 switch (retcode) {
138 case IPA_RC_SUCCESS:
139 rc = 0;
140 break;
141 case IPA_RC_L2_UNSUPPORTED_CMD:
ffb95251 142 rc = -EOPNOTSUPP;
efbbc1d5
EC		 143 break;
144 case IPA_RC_L2_ADDR_TABLE_FULL:
145 rc = -ENOSPC;
146 break;
147 case IPA_RC_L2_DUP_MAC:
148 case IPA_RC_L2_DUP_LAYER3_MAC:
149 rc = -EEXIST;
150 break;
151 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP:
152 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP:
153 rc = -EPERM;
154 break;
155 case IPA_RC_L2_MAC_NOT_FOUND:
156 rc = -ENOENT;
157 break;
1aec42bc
TR		 158 case -ENOMEM:
159 rc = -ENOMEM;
160 break;
efbbc1d5
EC		 161 default:
162 rc = -EIO;
163 break;
4a71df50 164 }
efbbc1d5 165 return rc;
4a71df50
FB		 166}
167
168static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
169{
efbbc1d5 170 int rc;
4a71df50 171
efbbc1d5
EC		 172 QETH_CARD_TEXT(card, 2, "L2Sgmac");
173 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
174 IPA_CMD_SETGMAC));
175 if (rc == -EEXIST)
176 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n",
177 mac, QETH_CARD_IFNAME(card));
178 else if (rc)
179 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n",
180 mac, QETH_CARD_IFNAME(card), rc);
181 return rc;
4a71df50
FB		 182}
183
184static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
185{
efbbc1d5
EC		 186 int rc;
187
847a50fd 188 QETH_CARD_TEXT(card, 2, "L2Dgmac");
efbbc1d5
EC		 189 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
190 IPA_CMD_DELGMAC));
191 if (rc)
192 QETH_DBF_MESSAGE(2,
193 "Could not delete group MAC %pM on %s: %d\n",
194 mac, QETH_CARD_IFNAME(card), rc);
195 return rc;
4a71df50
FB		 196}
197
fe5c8028 198static inline u32 qeth_l2_mac_hash(const u8 *addr)
4a71df50 199{
fe5c8028
LD		 200 return get_unaligned((u32 *)(&addr[2]));
201}
4a71df50 202
fe5c8028
LD		 203static int qeth_l2_write_mac(struct qeth_card *card, struct qeth_mac *mac)
204{
4a71df50 205
fe5c8028 206 int rc;
7db2266a 207
fe5c8028 208 if (mac->is_uc) {
efbbc1d5 209 rc = qeth_setdel_makerc(card,
fe5c8028
LD		 210 qeth_l2_send_setdelmac(card, mac->mac_addr,
211 IPA_CMD_SETVMAC));
7db2266a 212 } else {
efbbc1d5 213 rc = qeth_setdel_makerc(card,
fe5c8028 214 qeth_l2_send_setgroupmac(card, mac->mac_addr));
7db2266a 215 }
fe5c8028 216 return rc;
4a71df50
FB		 217}
218
fe5c8028 219static void qeth_l2_del_all_macs(struct qeth_card *card, int del)
4a71df50 220{
fe5c8028
LD		 221 struct qeth_mac *mac;
222 struct hlist_node *tmp;
223 int i;
4a71df50
FB		 224
225 spin_lock_bh(&card->mclock);
fe5c8028 226 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
70919e23 227 if (del) {
fe5c8028
LD		 228 if (mac->is_uc)
229 qeth_l2_send_setdelmac(card, mac->mac_addr,
230 IPA_CMD_DELVMAC);
70919e23 231 else
fe5c8028 232 qeth_l2_send_delgroupmac(card, mac->mac_addr);
70919e23 233 }
fe5c8028
LD		 234 hash_del(&mac->hnode);
235 kfree(mac);
4a71df50
FB		 236 }
237 spin_unlock_bh(&card->mclock);
238}
239
ce73e10e
KDW		 240static inline int qeth_l2_get_cast_type(struct qeth_card *card,
241 struct sk_buff *skb)
4a71df50 242{
ce73e10e
KDW		 243 if (card->info.type == QETH_CARD_TYPE_OSN)
244 return RTN_UNSPEC;
245 if (is_broadcast_ether_addr(skb->data))
246 return RTN_BROADCAST;
247 if (is_multicast_ether_addr(skb->data))
248 return RTN_MULTICAST;
249 return RTN_UNSPEC;
4a71df50
FB		 250}
251
4d7def2a
TR		 252static inline void qeth_l2_hdr_csum(struct qeth_card *card,
253 struct qeth_hdr *hdr, struct sk_buff *skb)
254{
255 struct iphdr *iph = ip_hdr(skb);
256
257 /* tcph->check contains already the pseudo hdr checksum
258 * so just set the header flags
259 */
260 if (iph->protocol == IPPROTO_UDP)
261 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP;
262 hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
263 QETH_HDR_EXT_CSUM_HDR_REQ;
264 iph->check = 0;
265 if (card->options.performance_stats)
266 card->perf_stats.tx_csum++;
267}
268
4a71df50 269static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
43934077 270 struct sk_buff *skb, int cast_type)
4a71df50 271{
683d718a 272 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
4a71df50
FB		 273
274 memset(hdr, 0, sizeof(struct qeth_hdr));
275 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
276
277 /* set byte byte 3 to casting flags */
278 if (cast_type == RTN_MULTICAST)
279 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST;
280 else if (cast_type == RTN_BROADCAST)
281 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST;
282 else
ce73e10e 283 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST;
4a71df50
FB		 284
285 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
286 /* VSWITCH relies on the VLAN
287 * information to be present in
288 * the QDIO header */
289 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
290 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
291 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
292 }
293}
294
295static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card,
296 struct qeth_reply *reply, unsigned long data)
297{
298 struct qeth_ipa_cmd *cmd;
299
847a50fd 300 QETH_CARD_TEXT(card, 2, "L2sdvcb");
4a71df50
FB		 301 cmd = (struct qeth_ipa_cmd *) data;
302 if (cmd->hdr.return_code) {
14cc21b6 303 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. "
4a71df50
FB		 304 "Continuing\n", cmd->data.setdelvlan.vlan_id,
305 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
847a50fd
CO		 306 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command);
307 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code);
4a71df50
FB		 308 }
309 return 0;
310}
311
312static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
313 enum qeth_ipa_cmds ipacmd)
314{
315 struct qeth_ipa_cmd *cmd;
316 struct qeth_cmd_buffer *iob;
317
847a50fd 318 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd);
4a71df50 319 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 320 if (!iob)
321 return -ENOMEM;
4a71df50
FB		 322 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
323 cmd->data.setdelvlan.vlan_id = i;
324 return qeth_send_ipa_cmd(card, iob,
325 qeth_l2_send_setdelvlan_cb, NULL);
326}
327
70919e23 328static void qeth_l2_process_vlans(struct qeth_card *card)
4a71df50
FB		 329{
330 struct qeth_vlan_vid *id;
847a50fd 331 QETH_CARD_TEXT(card, 3, "L2prcvln");
4a71df50
FB		 332 spin_lock_bh(&card->vlanlock);
333 list_for_each_entry(id, &card->vid_list, list) {
70919e23 334 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
4a71df50
FB		 335 }
336 spin_unlock_bh(&card->vlanlock);
337}
338
80d5c368
PM		 339static int qeth_l2_vlan_rx_add_vid(struct net_device *dev,
340 __be16 proto, u16 vid)
4a71df50 341{
509e2562 342 struct qeth_card *card = dev->ml_priv;
4a71df50 343 struct qeth_vlan_vid *id;
1aec42bc 344 int rc;
4a71df50 345
847a50fd 346 QETH_CARD_TEXT_(card, 4, "aid:%d", vid);
10651db7 347 if (!vid)
8e586137 348 return 0;
5113fec0 349 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 350 QETH_CARD_TEXT(card, 3, "aidOSM");
8e586137 351 return 0;
5113fec0 352 }
8e98ac48 353 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 354 QETH_CARD_TEXT(card, 3, "aidREC");
8e586137 355 return 0;
8e98ac48 356 }
4a71df50
FB		 357 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC);
358 if (id) {
359 id->vid = vid;
1aec42bc
TR		 360 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
361 if (rc) {
362 kfree(id);
363 return rc;
364 }
4a71df50
FB		 365 spin_lock_bh(&card->vlanlock);
366 list_add_tail(&id->list, &card->vid_list);
367 spin_unlock_bh(&card->vlanlock);
8e586137
JP		 368 } else {
369 return -ENOMEM;
4a71df50 370 }
8e586137 371 return 0;
4a71df50
FB		 372}
373
80d5c368
PM		 374static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev,
375 __be16 proto, u16 vid)
4a71df50
FB		 376{
377 struct qeth_vlan_vid *id, *tmpid = NULL;
509e2562 378 struct qeth_card *card = dev->ml_priv;
1aec42bc 379 int rc = 0;
4a71df50 380
847a50fd 381 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
5113fec0 382 if (card->info.type == QETH_CARD_TYPE_OSM) {
847a50fd 383 QETH_CARD_TEXT(card, 3, "kidOSM");
8e586137 384 return 0;
5113fec0 385 }
8e98ac48 386 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 387 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 388 return 0;
8e98ac48 389 }
4a71df50
FB		 390 spin_lock_bh(&card->vlanlock);
391 list_for_each_entry(id, &card->vid_list, list) {
392 if (id->vid == vid) {
393 list_del(&id->list);
394 tmpid = id;
395 break;
396 }
397 }
398 spin_unlock_bh(&card->vlanlock);
399 if (tmpid) {
1aec42bc 400 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
4a71df50
FB		 401 kfree(tmpid);
402 }
fe5c8028 403 qeth_l2_set_rx_mode(card->dev);
1aec42bc 404 return rc;
4a71df50
FB		 405}
406
4d7def2a
TR		 407static netdev_features_t qeth_l2_fix_features(struct net_device *dev,
408 netdev_features_t features)
409{
410 struct qeth_card *card = dev->ml_priv;
411
412 QETH_DBF_TEXT(SETUP, 2, "fixfeat");
413 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
414 features &= ~NETIF_F_IP_CSUM;
415 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
416 features &= ~NETIF_F_RXCSUM;
417 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
418 return features;
419}
420
421static int qeth_l2_set_features(struct net_device *dev,
422 netdev_features_t features)
423{
424 struct qeth_card *card = dev->ml_priv;
425 netdev_features_t changed = dev->features ^ features;
426
427 QETH_DBF_TEXT(SETUP, 2, "setfeat");
428 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
429
430 if (card->state == CARD_STATE_DOWN ||
431 card->state == CARD_STATE_RECOVER)
432 return 0;
433
434 if (!(changed & NETIF_F_RXCSUM))
435 return 0;
436 return qeth_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0);
437}
438
b2f4de8b 439static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
4a71df50 440{
d11ba0c4
PT		 441 QETH_DBF_TEXT(SETUP , 2, "stopcard");
442 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 443
444 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 445 if (card->read.state == CH_STATE_UP &&
446 card->write.state == CH_STATE_UP &&
447 (card->state == CARD_STATE_UP)) {
448 if (recovery_mode &&
449 card->info.type != QETH_CARD_TYPE_OSN) {
450 qeth_l2_stop(card->dev);
451 } else {
452 rtnl_lock();
453 dev_close(card->dev);
454 rtnl_unlock();
455 }
70919e23 456 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
4a71df50
FB		 457 card->state = CARD_STATE_SOFTSETUP;
458 }
459 if (card->state == CARD_STATE_SOFTSETUP) {
fe5c8028 460 qeth_l2_del_all_macs(card, 0);
4a71df50
FB		 461 qeth_clear_ipacmd_list(card);
462 card->state = CARD_STATE_HARDSETUP;
463 }
464 if (card->state == CARD_STATE_HARDSETUP) {
465 qeth_qdio_clear_card(card, 0);
466 qeth_clear_qdio_buffers(card);
467 qeth_clear_working_pool_list(card);
468 card->state = CARD_STATE_DOWN;
469 }
470 if (card->state == CARD_STATE_DOWN) {
471 qeth_clear_cmd_buffers(&card->read);
472 qeth_clear_cmd_buffers(&card->write);
473 }
4a71df50
FB		 474}
475
a1c3ed4c
FB		 476static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
477 int budget, int *done)
4a71df50 478{
a1c3ed4c 479 int work_done = 0;
4a71df50
FB		 480 struct sk_buff *skb;
481 struct qeth_hdr *hdr;
4a71df50
FB		 482 unsigned int len;
483
a1c3ed4c 484 *done = 0;
18af5c17 485 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 486 while (budget) {
487 skb = qeth_core_get_next_skb(card,
b3332930 488 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 489 &card->rx.b_element, &card->rx.e_offset, &hdr);
490 if (!skb) {
491 *done = 1;
492 break;
4a71df50 493 }
a1c3ed4c 494 skb->dev = card->dev;
4a71df50
FB		 495 switch (hdr->hdr.l2.id) {
496 case QETH_HEADER_TYPE_LAYER2:
497 skb->pkt_type = PACKET_HOST;
498 skb->protocol = eth_type_trans(skb, skb->dev);
4d7def2a
TR		 499 if ((card->dev->features & NETIF_F_RXCSUM)
500 && ((hdr->hdr.l2.flags[1] &
501 (QETH_HDR_EXT_CSUM_HDR_REQ |
502 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
503 (QETH_HDR_EXT_CSUM_HDR_REQ |
504 QETH_HDR_EXT_CSUM_TRANSP_REQ)))
505 skb->ip_summed = CHECKSUM_UNNECESSARY;
506 else
507 skb->ip_summed = CHECKSUM_NONE;
12883725
UB		 508 if (skb->protocol == htons(ETH_P_802_2))
509 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
4a71df50 510 len = skb->len;
9abfa8cb 511 napi_gro_receive(&card->napi, skb);
4a71df50
FB		 512 break;
513 case QETH_HEADER_TYPE_OSN:
2d488c2f
UB		 514 if (card->info.type == QETH_CARD_TYPE_OSN) {
515 skb_push(skb, sizeof(struct qeth_hdr));
516 skb_copy_to_linear_data(skb, hdr,
4a71df50 517 sizeof(struct qeth_hdr));
2d488c2f
UB		 518 len = skb->len;
519 card->osn_info.data_cb(skb);
520 break;
521 }
522 /* else unknown */
4a71df50
FB		 523 default:
524 dev_kfree_skb_any(skb);
847a50fd 525 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 526 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 527 continue;
528 }
a1c3ed4c
FB		 529 work_done++;
530 budget--;
4a71df50
FB		 531 card->stats.rx_packets++;
532 card->stats.rx_bytes += len;
533 }
a1c3ed4c
FB		 534 return work_done;
535}
536
537static int qeth_l2_poll(struct napi_struct *napi, int budget)
538{
539 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
540 int work_done = 0;
541 struct qeth_qdio_buffer *buffer;
542 int done;
543 int new_budget = budget;
544
545 if (card->options.performance_stats) {
546 card->perf_stats.inbound_cnt++;
547 card->perf_stats.inbound_start_time = qeth_get_micros();
548 }
549
550 while (1) {
551 if (!card->rx.b_count) {
552 card->rx.qdio_err = 0;
553 card->rx.b_count = qdio_get_next_buffers(
554 card->data.ccwdev, 0, &card->rx.b_index,
555 &card->rx.qdio_err);
556 if (card->rx.b_count <= 0) {
557 card->rx.b_count = 0;
558 break;
559 }
560 card->rx.b_element =
561 &card->qdio.in_q->bufs[card->rx.b_index]
562 .buffer->element[0];
563 card->rx.e_offset = 0;
564 }
565
566 while (card->rx.b_count) {
567 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
568 if (!(card->rx.qdio_err &&
569 qeth_check_qdio_errors(card, buffer->buffer,
570 card->rx.qdio_err, "qinerr")))
571 work_done += qeth_l2_process_inbound_buffer(
572 card, new_budget, &done);
573 else
574 done = 1;
575
576 if (done) {
577 if (card->options.performance_stats)
578 card->perf_stats.bufs_rec++;
579 qeth_put_buffer_pool_entry(card,
580 buffer->pool_entry);
581 qeth_queue_input_buffer(card, card->rx.b_index);
582 card->rx.b_count--;
583 if (card->rx.b_count) {
584 card->rx.b_index =
585 (card->rx.b_index + 1) %
586 QDIO_MAX_BUFFERS_PER_Q;
587 card->rx.b_element =
588 &card->qdio.in_q
589 ->bufs[card->rx.b_index]
590 .buffer->element[0];
591 card->rx.e_offset = 0;
592 }
593 }
594
595 if (work_done >= budget)
596 goto out;
597 else
598 new_budget = budget - work_done;
599 }
600 }
601
602 napi_complete(napi);
603 if (qdio_start_irq(card->data.ccwdev, 0))
604 napi_schedule(&card->napi);
605out:
606 if (card->options.performance_stats)
607 card->perf_stats.inbound_time += qeth_get_micros() -
608 card->perf_stats.inbound_start_time;
609 return work_done;
4a71df50
FB		 610}
611
612static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
efbbc1d5 613 enum qeth_ipa_cmds ipacmd)
4a71df50
FB		 614{
615 struct qeth_ipa_cmd *cmd;
616 struct qeth_cmd_buffer *iob;
617
847a50fd 618 QETH_CARD_TEXT(card, 2, "L2sdmac");
4a71df50 619 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 620 if (!iob)
621 return -ENOMEM;
4a71df50
FB		 622 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
623 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
624 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
efbbc1d5 625 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
4a71df50
FB		 626}
627
efbbc1d5 628static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
4a71df50 629{
efbbc1d5 630 int rc;
4a71df50 631
efbbc1d5
EC		 632 QETH_CARD_TEXT(card, 2, "L2Setmac");
633 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
634 IPA_CMD_SETVMAC));
635 if (rc == 0) {
636 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
637 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
638 dev_info(&card->gdev->dev,
639 "MAC address %pM successfully registered on device %s\n",
640 card->dev->dev_addr, card->dev->name);
641 } else {
4a71df50 642 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
efbbc1d5
EC		 643 switch (rc) {
644 case -EEXIST:
0666eb06 645 dev_warn(&card->gdev->dev,
efbbc1d5 646 "MAC address %pM already exists\n", mac);
0666eb06 647 break;
efbbc1d5 648 case -EPERM:
0666eb06 649 dev_warn(&card->gdev->dev,
efbbc1d5 650 "MAC address %pM is not authorized\n", mac);
0666eb06
UB		 651 break;
652 }
4a71df50 653 }
efbbc1d5 654 return rc;
4a71df50
FB		 655}
656
657static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
658{
efbbc1d5
EC		 659 int rc;
660
847a50fd 661 QETH_CARD_TEXT(card, 2, "L2Delmac");
4a71df50
FB		 662 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
663 return 0;
efbbc1d5
EC		 664 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
665 IPA_CMD_DELVMAC));
666 if (rc == 0)
667 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
668 return rc;
4a71df50
FB		 669}
670
671static int qeth_l2_request_initial_mac(struct qeth_card *card)
672{
673 int rc = 0;
674 char vendor_pre[] = {0x02, 0x00, 0x00};
675
d11ba0c4
PT		 676 QETH_DBF_TEXT(SETUP, 2, "doL2init");
677 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
4a71df50 678
a134884a
SR		 679 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
680 rc = qeth_query_setadapterparms(card);
681 if (rc) {
682 QETH_DBF_MESSAGE(2, "could not query adapter "
683 "parameters on device %s: x%x\n",
684 CARD_BUS_ID(card), rc);
685 }
4a71df50
FB		 686 }
687
5113fec0
UB		 688 if (card->info.type == QETH_CARD_TYPE_IQD ||
689 card->info.type == QETH_CARD_TYPE_OSM ||
690 card->info.type == QETH_CARD_TYPE_OSX ||
691 card->info.guestlan) {
4a71df50
FB		 692 rc = qeth_setadpparms_change_macaddr(card);
693 if (rc) {
14cc21b6
FB		 694 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
695 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1aec42bc 696 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
4a71df50
FB		 697 return rc;
698 }
d11ba0c4 699 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
4a71df50 700 } else {
1833611d 701 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 702 memcpy(card->dev->dev_addr, vendor_pre, 3);
703 }
704 return 0;
705}
706
707static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
708{
709 struct sockaddr *addr = p;
509e2562 710 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 711 int rc = 0;
712
847a50fd 713 QETH_CARD_TEXT(card, 3, "setmac");
4a71df50
FB		 714
715 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
847a50fd 716 QETH_CARD_TEXT(card, 3, "setmcINV");
4a71df50
FB		 717 return -EOPNOTSUPP;
718 }
719
5113fec0
UB		 720 if (card->info.type == QETH_CARD_TYPE_OSN ||
721 card->info.type == QETH_CARD_TYPE_OSM ||
722 card->info.type == QETH_CARD_TYPE_OSX) {
847a50fd 723 QETH_CARD_TEXT(card, 3, "setmcTYP");
4a71df50
FB		 724 return -EOPNOTSUPP;
725 }
847a50fd 726 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
8e98ac48 727 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 728 QETH_CARD_TEXT(card, 3, "setmcREC");
8e98ac48
UB		 729 return -ERESTARTSYS;
730 }
4a71df50 731 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
efbbc1d5 732 if (!rc || (rc == -ENOENT))
4a71df50 733 rc = qeth_l2_send_setmac(card, addr->sa_data);
e0a8114c 734 return rc ? -EINVAL : 0;
4a71df50
FB		 735}
736
0db587b0
EC		 737static void qeth_promisc_to_bridge(struct qeth_card *card)
738{
739 struct net_device *dev = card->dev;
740 enum qeth_ipa_promisc_modes promisc_mode;
741 int role;
742 int rc;
743
744 QETH_CARD_TEXT(card, 3, "pmisc2br");
745
746 if (!card->options.sbp.reflect_promisc)
747 return;
748 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
749 : SET_PROMISC_MODE_OFF;
750 if (promisc_mode == card->info.promisc_mode)
751 return;
752
753 if (promisc_mode == SET_PROMISC_MODE_ON) {
754 if (card->options.sbp.reflect_promisc_primary)
755 role = QETH_SBP_ROLE_PRIMARY;
756 else
757 role = QETH_SBP_ROLE_SECONDARY;
758 } else
759 role = QETH_SBP_ROLE_NONE;
760
761 rc = qeth_bridgeport_setrole(card, role);
762 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
763 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
764 if (!rc) {
765 card->options.sbp.role = role;
766 card->info.promisc_mode = promisc_mode;
767 }
fe5c8028
LD		 768
769}
770/* New MAC address is added to the hash table and marked to be written on card
771 * only if there is not in the hash table storage already
772 *
773*/
774static void
775qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha, u8 is_uc)
776{
777 struct qeth_mac *mac;
778
779 hash_for_each_possible(card->mac_htable, mac, hnode,
780 qeth_l2_mac_hash(ha->addr)) {
781 if (is_uc == mac->is_uc &&
782 !memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
783 mac->disp_flag = QETH_DISP_MAC_DO_NOTHING;
784 return;
785 }
786 }
787
788 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
789
790 if (!mac)
791 return;
792
793 memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
794 mac->is_uc = is_uc;
795 mac->disp_flag = QETH_DISP_MAC_ADD;
796
797 hash_add(card->mac_htable, &mac->hnode,
798 qeth_l2_mac_hash(mac->mac_addr));
799
0db587b0
EC		 800}
801
fe5c8028 802static void qeth_l2_set_rx_mode(struct net_device *dev)
4a71df50 803{
509e2562 804 struct qeth_card *card = dev->ml_priv;
ccffad25 805 struct netdev_hw_addr *ha;
fe5c8028
LD		 806 struct qeth_mac *mac;
807 struct hlist_node *tmp;
808 int i;
809 int rc;
4a71df50
FB		 810
811 if (card->info.type == QETH_CARD_TYPE_OSN)
fe5c8028 812 return;
4a71df50 813
847a50fd 814 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 815 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
816 (card->state != CARD_STATE_UP))
817 return;
fe5c8028 818
4a71df50 819 spin_lock_bh(&card->mclock);
fe5c8028 820
22bedad3 821 netdev_for_each_mc_addr(ha, dev)
fe5c8028 822 qeth_l2_add_mac(card, ha, 0);
7db2266a 823
32e7bfc4 824 netdev_for_each_uc_addr(ha, dev)
fe5c8028
LD		 825 qeth_l2_add_mac(card, ha, 1);
826
827 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
828 if (mac->disp_flag == QETH_DISP_MAC_DELETE) {
829 if (!mac->is_uc)
830 rc = qeth_l2_send_delgroupmac(card,
831 mac->mac_addr);
832 else {
833 rc = qeth_l2_send_setdelmac(card, mac->mac_addr,
834 IPA_CMD_DELVMAC);
835 }
836
837 hash_del(&mac->hnode);
838 kfree(mac);
839
840 } else if (mac->disp_flag == QETH_DISP_MAC_ADD) {
841 rc = qeth_l2_write_mac(card, mac);
842 if (rc) {
843 hash_del(&mac->hnode);
844 kfree(mac);
845 } else
846 mac->disp_flag = QETH_DISP_MAC_DELETE;
847 } else
848 mac->disp_flag = QETH_DISP_MAC_DELETE;
849 }
7db2266a 850
4a71df50 851 spin_unlock_bh(&card->mclock);
fe5c8028 852
0db587b0
EC		 853 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
854 qeth_setadp_promisc_mode(card);
855 else
856 qeth_promisc_to_bridge(card);
4a71df50
FB		 857}
858
859static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
860{
861 int rc;
862 struct qeth_hdr *hdr = NULL;
863 int elements = 0;
509e2562 864 struct qeth_card *card = dev->ml_priv;
4a71df50 865 struct sk_buff *new_skb = skb;
ce73e10e 866 int cast_type = qeth_l2_get_cast_type(card, skb);
290b8348 867 struct qeth_qdio_out_q *queue;
4a71df50 868 int tx_bytes = skb->len;
683d718a
FB		 869 int data_offset = -1;
870 int elements_needed = 0;
871 int hd_len = 0;
d52aec97 872 int nr_frags;
4a71df50 873
290b8348
SR		 874 if (card->qdio.do_prio_queueing || (cast_type &&
875 card->info.is_multicast_different))
876 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
877 qeth_get_ip_version(skb), cast_type)];
878 else
879 queue = card->qdio.out_qs[card->qdio.default_out_queue];
880
4a71df50
FB		 881 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
882 card->stats.tx_carrier_errors++;
883 goto tx_drop;
884 }
885
886 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
887 (skb->protocol == htons(ETH_P_IPV6)))
888 goto tx_drop;
889
890 if (card->options.performance_stats) {
891 card->perf_stats.outbound_cnt++;
892 card->perf_stats.outbound_start_time = qeth_get_micros();
893 }
894 netif_stop_queue(dev);
895
d52aec97
EC		 896 /* fix hardware limitation: as long as we do not have sbal
897 * chaining we can not send long frag lists
898 */
899 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
900 !qeth_get_elements_no(card, new_skb, 0)) {
901 if (skb_linearize(new_skb))
902 goto tx_drop;
903 if (card->options.performance_stats)
904 card->perf_stats.tx_lin++;
905 }
906
4a71df50
FB		 907 if (card->info.type == QETH_CARD_TYPE_OSN)
908 hdr = (struct qeth_hdr *)skb->data;
909 else {
64ef8957 910 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 911 new_skb = skb;
912 data_offset = ETH_HLEN;
913 hd_len = ETH_HLEN;
914 hdr = kmem_cache_alloc(qeth_core_header_cache,
915 GFP_ATOMIC);
916 if (!hdr)
917 goto tx_drop;
918 elements_needed++;
919 skb_reset_mac_header(new_skb);
43934077 920 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
683d718a
FB		 921 hdr->hdr.l2.pkt_length = new_skb->len;
922 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
923 skb_mac_header(new_skb), ETH_HLEN);
924 } else {
925 /* create a clone with writeable headroom */
926 new_skb = skb_realloc_headroom(skb,
927 sizeof(struct qeth_hdr));
928 if (!new_skb)
929 goto tx_drop;
930 hdr = (struct qeth_hdr *)skb_push(new_skb,
f90b744e 931 sizeof(struct qeth_hdr));
683d718a 932 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
43934077 933 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
4d7def2a
TR		 934 if (new_skb->ip_summed == CHECKSUM_PARTIAL)
935 qeth_l2_hdr_csum(card, hdr, new_skb);
683d718a 936 }
4a71df50
FB		 937 }
938
065cc782 939 elements = qeth_get_elements_no(card, new_skb, elements_needed);
64ef8957
FB		 940 if (!elements) {
941 if (data_offset >= 0)
942 kmem_cache_free(qeth_core_header_cache, hdr);
943 goto tx_drop;
f61a0d05 944 }
4a71df50 945
51aa165c 946 if (card->info.type != QETH_CARD_TYPE_IQD) {
d4ae1f5e 947 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
51aa165c
FB		 948 sizeof(struct qeth_hdr_layer2)))
949 goto tx_drop;
4a71df50 950 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 951 elements);
51aa165c 952 } else
4a71df50 953 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 954 elements, data_offset, hd_len);
4a71df50
FB		 955 if (!rc) {
956 card->stats.tx_packets++;
957 card->stats.tx_bytes += tx_bytes;
d52aec97
EC		 958 if (card->options.performance_stats) {
959 nr_frags = skb_shinfo(new_skb)->nr_frags;
960 if (nr_frags) {
961 card->perf_stats.sg_skbs_sent++;
962 /* nr_frags + skb->data */
963 card->perf_stats.sg_frags_sent += nr_frags + 1;
964 }
965 }
4a71df50
FB		 966 if (new_skb != skb)
967 dev_kfree_skb_any(skb);
ec634fe3 968 rc = NETDEV_TX_OK;
4a71df50 969 } else {
683d718a
FB		 970 if (data_offset >= 0)
971 kmem_cache_free(qeth_core_header_cache, hdr);
972
4a71df50
FB		 973 if (rc == -EBUSY) {
974 if (new_skb != skb)
975 dev_kfree_skb_any(new_skb);
976 return NETDEV_TX_BUSY;
977 } else
978 goto tx_drop;
979 }
980
981 netif_wake_queue(dev);
982 if (card->options.performance_stats)
983 card->perf_stats.outbound_time += qeth_get_micros() -
984 card->perf_stats.outbound_start_time;
985 return rc;
986
987tx_drop:
988 card->stats.tx_dropped++;
989 card->stats.tx_errors++;
990 if ((new_skb != skb) && new_skb)
991 dev_kfree_skb_any(new_skb);
992 dev_kfree_skb_any(skb);
d0ec0f54 993 netif_wake_queue(dev);
4a71df50
FB		 994 return NETDEV_TX_OK;
995}
996
39423440 997static int __qeth_l2_open(struct net_device *dev)
4a71df50 998{
509e2562 999 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 1000 int rc = 0;
4a71df50 1001
847a50fd 1002 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 1003 if (card->state == CARD_STATE_UP)
1004 return rc;
4a71df50
FB		 1005 if (card->state != CARD_STATE_SOFTSETUP)
1006 return -ENODEV;
1007
1008 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
1009 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
847a50fd 1010 QETH_CARD_TEXT(card, 4, "nomacadr");
4a71df50
FB		 1011 return -EPERM;
1012 }
1013 card->data.state = CH_STATE_UP;
1014 card->state = CARD_STATE_UP;
4a71df50
FB		 1015 netif_start_queue(dev);
1016
a1c3ed4c
FB		 1017 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
1018 napi_enable(&card->napi);
1019 napi_schedule(&card->napi);
1020 } else
1021 rc = -EIO;
1022 return rc;
4a71df50
FB		 1023}
1024
39423440
UB		 1025static int qeth_l2_open(struct net_device *dev)
1026{
1027 struct qeth_card *card = dev->ml_priv;
1028
1029 QETH_CARD_TEXT(card, 5, "qethope_");
1030 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1031 QETH_CARD_TEXT(card, 3, "openREC");
1032 return -ERESTARTSYS;
1033 }
1034 return __qeth_l2_open(dev);
1035}
1036
4a71df50
FB		 1037static int qeth_l2_stop(struct net_device *dev)
1038{
509e2562 1039 struct qeth_card *card = dev->ml_priv;
4a71df50 1040
847a50fd 1041 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 1042 netif_tx_disable(dev);
a1c3ed4c 1043 if (card->state == CARD_STATE_UP) {
4a71df50 1044 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 1045 napi_disable(&card->napi);
1046 }
4a71df50
FB		 1047 return 0;
1048}
1049
1050static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
1051{
1052 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1053
b4d72c08 1054 qeth_l2_create_device_attributes(&gdev->dev);
4a71df50 1055 INIT_LIST_HEAD(&card->vid_list);
fe5c8028 1056 hash_init(card->mac_htable);
4a71df50 1057 card->options.layer2 = 1;
1da74b1c 1058 card->info.hwtrap = 0;
4a71df50
FB		 1059 return 0;
1060}
1061
1062static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
1063{
1064 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1065
b4d72c08 1066 qeth_l2_remove_device_attributes(&cgdev->dev);
f2148565 1067 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 1068 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1069
70919e23 1070 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 1071 qeth_l2_set_offline(cgdev);
4a71df50
FB		 1072
1073 if (card->dev) {
1074 unregister_netdev(card->dev);
1075 card->dev = NULL;
1076 }
4a71df50
FB		 1077 return;
1078}
1079
0fc0b732 1080static const struct ethtool_ops qeth_l2_ethtool_ops = {
4a71df50 1081 .get_link = ethtool_op_get_link,
4a71df50
FB		 1082 .get_strings = qeth_core_get_strings,
1083 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1084 .get_sset_count = qeth_core_get_sset_count,
4a71df50 1085 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 1086 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 1087};
1088
0fc0b732 1089static const struct ethtool_ops qeth_l2_osn_ops = {
4a71df50
FB		 1090 .get_strings = qeth_core_get_strings,
1091 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1092 .get_sset_count = qeth_core_get_sset_count,
4a71df50
FB		 1093 .get_drvinfo = qeth_core_get_drvinfo,
1094};
1095
3d58cefd 1096static const struct net_device_ops qeth_l2_netdev_ops = {
8403b13c
FB		 1097 .ndo_open = qeth_l2_open,
1098 .ndo_stop = qeth_l2_stop,
1099 .ndo_get_stats = qeth_get_stats,
1100 .ndo_start_xmit = qeth_l2_hard_start_xmit,
1101 .ndo_validate_addr = eth_validate_addr,
fe5c8028 1102 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
8403b13c
FB		 1103 .ndo_do_ioctl = qeth_l2_do_ioctl,
1104 .ndo_set_mac_address = qeth_l2_set_mac_address,
1105 .ndo_change_mtu = qeth_change_mtu,
1106 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
1107 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
1108 .ndo_tx_timeout = qeth_tx_timeout,
4d7def2a
TR		 1109 .ndo_fix_features = qeth_l2_fix_features,
1110 .ndo_set_features = qeth_l2_set_features
8403b13c
FB		 1111};
1112
4a71df50
FB		 1113static int qeth_l2_setup_netdev(struct qeth_card *card)
1114{
1115 switch (card->info.type) {
4a71df50 1116 case QETH_CARD_TYPE_IQD:
c835a677
TG		 1117 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
1118 ether_setup);
4a71df50
FB		 1119 break;
1120 case QETH_CARD_TYPE_OSN:
c835a677
TG		 1121 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
1122 ether_setup);
4a71df50
FB		 1123 card->dev->flags |= IFF_NOARP;
1124 break;
1125 default:
1126 card->dev = alloc_etherdev(0);
1127 }
1128
1129 if (!card->dev)
1130 return -ENODEV;
1131
509e2562 1132 card->dev->ml_priv = card;
4a71df50 1133 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 1134 card->dev->mtu = card->info.initial_mtu;
8403b13c 1135 card->dev->netdev_ops = &qeth_l2_netdev_ops;
7ad24ea4
WK		 1136 card->dev->ethtool_ops =
1137 (card->info.type != QETH_CARD_TYPE_OSN) ?
1138 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
f646968f 1139 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4d7def2a 1140 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
d52aec97
EC		 1141 card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1142 NETIF_F_SG;
2601e4ed
EC		 1143 /* Turn on RX offloading and SG per default */
1144 card->dev->features |= NETIF_F_RXCSUM | NETIF_F_SG;
4d7def2a 1145 }
4a71df50
FB		 1146 card->info.broadcast_capable = 1;
1147 qeth_l2_request_initial_mac(card);
d52aec97
EC		 1148 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
1149 PAGE_SIZE;
1150 card->dev->gso_max_segs = (QETH_MAX_BUFFER_ELEMENTS(card) - 1);
4a71df50 1151 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 1152 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
e5ebe632 1153 netif_carrier_off(card->dev);
4a71df50
FB		 1154 return register_netdev(card->dev);
1155}
1156
4d7def2a
TR		 1157static int qeth_l2_start_ipassists(struct qeth_card *card)
1158{
1159 /* configure isolation level */
1160 if (qeth_set_access_ctrl_online(card, 0))
1161 return -ENODEV;
1162 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
1163 qeth_set_rx_csum(card, 1);
1164 qeth_start_ipa_tx_checksum(card);
1165 return 0;
1166}
1167
4a71df50
FB		 1168static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1169{
1170 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1171 int rc = 0;
1172 enum qeth_card_states recover_flag;
1173
9dc48ccc 1174 mutex_lock(&card->discipline_mutex);
c4949f07 1175 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1176 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1177 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 1178
4a71df50 1179 recover_flag = card->state;
4a71df50
FB		 1180 rc = qeth_core_hardsetup_card(card);
1181 if (rc) {
1aec42bc 1182 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
aa909224 1183 rc = -ENODEV;
4a71df50
FB		 1184 goto out_remove;
1185 }
c044dc21
EC		 1186 qeth_bridgeport_query_support(card);
1187 if (card->options.sbp.supported_funcs)
1188 dev_info(&card->gdev->dev,
9c23f4da 1189 "The device represents a Bridge Capable Port\n");
395672e0 1190 qeth_trace_features(card);
4a71df50 1191
aa909224
UB		 1192 if (!card->dev && qeth_l2_setup_netdev(card)) {
1193 rc = -ENODEV;
4a71df50 1194 goto out_remove;
aa909224 1195 }
4a71df50
FB		 1196
1197 if (card->info.type != QETH_CARD_TYPE_OSN)
1198 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1199
1da74b1c
FB		 1200 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1201 if (card->info.hwtrap &&
1202 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1203 card->info.hwtrap = 0;
1204 } else
1205 card->info.hwtrap = 0;
1206
b4d72c08
EC		 1207 qeth_l2_setup_bridgeport_attrs(card);
1208
4a71df50 1209 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 1210 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 1211 qeth_print_status_message(card);
1212
1213 /* softsetup */
d11ba0c4 1214 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 1215
1216 rc = qeth_send_startlan(card);
1217 if (rc) {
d11ba0c4 1218 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 1219 if (rc == 0xe080) {
74eacdb9
FB		 1220 dev_warn(&card->gdev->dev,
1221 "The LAN is offline\n");
4a71df50 1222 card->lan_online = 0;
2b6203bb 1223 goto contin;
4a71df50 1224 }
aa909224 1225 rc = -ENODEV;
f2148565 1226 goto out_remove;
4a71df50
FB		 1227 } else
1228 card->lan_online = 1;
1229
2b6203bb 1230contin:
5113fec0 1231 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
0f54761d 1232 (card->info.type == QETH_CARD_TYPE_OSX)) {
4d7def2a 1233 if (qeth_l2_start_ipassists(card))
0f54761d 1234 goto out_remove;
0f54761d 1235 }
5113fec0
UB		 1236
1237 if (card->info.type != QETH_CARD_TYPE_OSN &&
1238 card->info.type != QETH_CARD_TYPE_OSM)
70919e23 1239 qeth_l2_process_vlans(card);
4a71df50
FB		 1240
1241 netif_tx_disable(card->dev);
1242
1243 rc = qeth_init_qdio_queues(card);
1244 if (rc) {
d11ba0c4 1245 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 1246 rc = -ENODEV;
4a71df50
FB		 1247 goto out_remove;
1248 }
1249 card->state = CARD_STATE_SOFTSETUP;
2b6203bb
UB		 1250 if (card->lan_online)
1251 netif_carrier_on(card->dev);
1252 else
1253 netif_carrier_off(card->dev);
4a71df50
FB		 1254
1255 qeth_set_allowed_threads(card, 0xffffffff, 0);
1256 if (recover_flag == CARD_STATE_RECOVER) {
1257 if (recovery_mode &&
1258 card->info.type != QETH_CARD_TYPE_OSN) {
39423440 1259 __qeth_l2_open(card->dev);
4a71df50
FB		 1260 } else {
1261 rtnl_lock();
1262 dev_open(card->dev);
1263 rtnl_unlock();
1264 }
1265 /* this also sets saved unicast addresses */
fe5c8028 1266 qeth_l2_set_rx_mode(card->dev);
4a71df50
FB		 1267 }
1268 /* let user_space know that device is online */
1269 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1270 mutex_unlock(&card->conf_mutex);
9dc48ccc 1271 mutex_unlock(&card->discipline_mutex);
4a71df50 1272 return 0;
aa909224 1273
4a71df50 1274out_remove:
4a71df50
FB		 1275 qeth_l2_stop_card(card, 0);
1276 ccw_device_set_offline(CARD_DDEV(card));
1277 ccw_device_set_offline(CARD_WDEV(card));
1278 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 1279 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1280 if (recover_flag == CARD_STATE_RECOVER)
1281 card->state = CARD_STATE_RECOVER;
1282 else
1283 card->state = CARD_STATE_DOWN;
c4949f07 1284 mutex_unlock(&card->conf_mutex);
9dc48ccc 1285 mutex_unlock(&card->discipline_mutex);
aa909224 1286 return rc;
4a71df50
FB		 1287}
1288
1289static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1290{
1291 return __qeth_l2_set_online(gdev, 0);
1292}
1293
1294static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1295 int recovery_mode)
1296{
1297 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1298 int rc = 0, rc2 = 0, rc3 = 0;
1299 enum qeth_card_states recover_flag;
1300
9dc48ccc 1301 mutex_lock(&card->discipline_mutex);
c4949f07 1302 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1303 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1304 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 1305
1306 if (card->dev && netif_carrier_ok(card->dev))
1307 netif_carrier_off(card->dev);
1308 recover_flag = card->state;
1da74b1c
FB		 1309 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1310 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1311 card->info.hwtrap = 1;
1312 }
0f5623c9 1313 qeth_l2_stop_card(card, recovery_mode);
4a71df50
FB		 1314 rc = ccw_device_set_offline(CARD_DDEV(card));
1315 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1316 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1317 if (!rc)
1318 rc = (rc2) ? rc2 : rc3;
1319 if (rc)
d11ba0c4 1320 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 1321 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1322 if (recover_flag == CARD_STATE_UP)
1323 card->state = CARD_STATE_RECOVER;
1324 /* let user_space know that device is offline */
1325 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1326 mutex_unlock(&card->conf_mutex);
9dc48ccc 1327 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 1328 return 0;
1329}
1330
1331static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1332{
1333 return __qeth_l2_set_offline(cgdev, 0);
1334}
1335
1336static int qeth_l2_recover(void *ptr)
1337{
1338 struct qeth_card *card;
1339 int rc = 0;
1340
1341 card = (struct qeth_card *) ptr;
847a50fd 1342 QETH_CARD_TEXT(card, 2, "recover1");
4a71df50
FB		 1343 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1344 return 0;
847a50fd 1345 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 1346 dev_warn(&card->gdev->dev,
1347 "A recovery process has been started for the device\n");
65d8013c 1348 qeth_set_recovery_task(card);
4a71df50
FB		 1349 __qeth_l2_set_offline(card->gdev, 1);
1350 rc = __qeth_l2_set_online(card->gdev, 1);
4a71df50 1351 if (!rc)
74eacdb9
FB		 1352 dev_info(&card->gdev->dev,
1353 "Device successfully recovered!\n");
28a7e4c9 1354 else {
0f54761d
SR		 1355 qeth_close_dev(card);
1356 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 1357 "failed to recover an error on the device\n");
28a7e4c9 1358 }
65d8013c 1359 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 1360 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1361 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 1362 return 0;
1363}
1364
1365static int __init qeth_l2_init(void)
1366{
74eacdb9 1367 pr_info("register layer 2 discipline\n");
4a71df50
FB		 1368 return 0;
1369}
1370
1371static void __exit qeth_l2_exit(void)
1372{
74eacdb9 1373 pr_info("unregister layer 2 discipline\n");
4a71df50
FB		 1374}
1375
1376static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1377{
1378 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 1379 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 1380 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1381 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 1382 qeth_qdio_clear_card(card, 0);
1383 qeth_clear_qdio_buffers(card);
22ae2790 1384 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1385}
1386
bbcfcdc8
FB		 1387static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1388{
1389 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1390
1391 if (card->dev)
1392 netif_device_detach(card->dev);
1393 qeth_set_allowed_threads(card, 0, 1);
1394 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1395 if (gdev->state == CCWGROUP_OFFLINE)
1396 return 0;
1397 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 1398 if (card->info.hwtrap)
1399 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 1400 __qeth_l2_set_offline(card->gdev, 1);
1401 } else
1402 __qeth_l2_set_offline(card->gdev, 0);
1403 return 0;
1404}
1405
1406static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1407{
1408 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1409 int rc = 0;
1410
1411 if (gdev->state == CCWGROUP_OFFLINE)
1412 goto out;
1413
1414 if (card->state == CARD_STATE_RECOVER) {
1415 rc = __qeth_l2_set_online(card->gdev, 1);
1416 if (rc) {
869da90b
UB		 1417 rtnl_lock();
1418 dev_close(card->dev);
1419 rtnl_unlock();
bbcfcdc8
FB		 1420 }
1421 } else
1422 rc = __qeth_l2_set_online(card->gdev, 0);
1423out:
1424 qeth_set_allowed_threads(card, 0xffffffff, 0);
1425 if (card->dev)
1426 netif_device_attach(card->dev);
1427 if (rc)
1428 dev_warn(&card->gdev->dev, "The qeth device driver "
1429 "failed to recover an error on the device\n");
1430 return rc;
1431}
1432
c044dc21
EC		 1433/* Returns zero if the command is successfully "consumed" */
1434static int qeth_l2_control_event(struct qeth_card *card,
1435 struct qeth_ipa_cmd *cmd)
1436{
1437 switch (cmd->hdr.command) {
9c23f4da
EC		 1438 case IPA_CMD_SETBRIDGEPORT_OSA:
1439 case IPA_CMD_SETBRIDGEPORT_IQD:
c044dc21
EC		 1440 if (cmd->data.sbp.hdr.command_code ==
1441 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1442 qeth_bridge_state_change(card, cmd);
1443 return 0;
1444 } else
1445 return 1;
1446 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1447 qeth_bridge_host_event(card, cmd);
1448 return 0;
1449 default:
1450 return 1;
1451 }
1452}
1453
c041f2d4
SO		 1454struct qeth_discipline qeth_l2_discipline = {
1455 .start_poll = qeth_qdio_start_poll,
1456 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1457 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1458 .recover = qeth_l2_recover,
1459 .setup = qeth_l2_probe_device,
4a71df50
FB		 1460 .remove = qeth_l2_remove_device,
1461 .set_online = qeth_l2_set_online,
1462 .set_offline = qeth_l2_set_offline,
1463 .shutdown = qeth_l2_shutdown,
bbcfcdc8
FB		 1464 .freeze = qeth_l2_pm_suspend,
1465 .thaw = qeth_l2_pm_resume,
1466 .restore = qeth_l2_pm_resume,
c044dc21 1467 .control_event_handler = qeth_l2_control_event,
4a71df50 1468};
c041f2d4 1469EXPORT_SYMBOL_GPL(qeth_l2_discipline);
4a71df50
FB		 1470
1471static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1472 struct qeth_cmd_buffer *iob)
1473{
1474 unsigned long flags;
1475 int rc = 0;
1476
847a50fd 1477 QETH_CARD_TEXT(card, 5, "osndctrd");
4a71df50
FB		 1478
1479 wait_event(card->wait_q,
1480 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1481 qeth_prepare_control_data(card, len, iob);
847a50fd 1482 QETH_CARD_TEXT(card, 6, "osnoirqp");
4a71df50
FB		 1483 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1484 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1485 (addr_t) iob, 0, 0);
1486 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1487 if (rc) {
14cc21b6 1488 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4a71df50 1489 "ccw_device_start rc = %i\n", rc);
847a50fd 1490 QETH_CARD_TEXT_(card, 2, " err%d", rc);
4a71df50
FB		 1491 qeth_release_buffer(iob->channel, iob);
1492 atomic_set(&card->write.irq_pending, 0);
1493 wake_up(&card->wait_q);
1494 }
1495 return rc;
1496}
1497
1498static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1499 struct qeth_cmd_buffer *iob, int data_len)
1500{
1501 u16 s1, s2;
1502
847a50fd 1503 QETH_CARD_TEXT(card, 4, "osndipa");
4a71df50
FB		 1504
1505 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1506 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1507 s2 = (u16)data_len;
1508 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1509 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1510 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1511 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1512 return qeth_osn_send_control_data(card, s1, iob);
1513}
1514
1515int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1516{
1517 struct qeth_cmd_buffer *iob;
1518 struct qeth_card *card;
1519 int rc;
1520
4a71df50
FB		 1521 if (!dev)
1522 return -ENODEV;
509e2562 1523 card = dev->ml_priv;
4a71df50
FB		 1524 if (!card)
1525 return -ENODEV;
847a50fd 1526 QETH_CARD_TEXT(card, 2, "osnsdmc");
c3521254 1527 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 1528 return -ENODEV;
1529 iob = qeth_wait_for_buffer(&card->write);
1530 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1531 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1532 return rc;
1533}
1534EXPORT_SYMBOL(qeth_osn_assist);
1535
1536int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1537 int (*assist_cb)(struct net_device *, void *),
1538 int (*data_cb)(struct sk_buff *))
1539{
1540 struct qeth_card *card;
1541
4a71df50
FB		 1542 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1543 if (*dev == NULL)
1544 return -ENODEV;
509e2562 1545 card = (*dev)->ml_priv;
4a71df50
FB		 1546 if (!card)
1547 return -ENODEV;
847a50fd 1548 QETH_CARD_TEXT(card, 2, "osnreg");
4a71df50
FB		 1549 if ((assist_cb == NULL) || (data_cb == NULL))
1550 return -EINVAL;
1551 card->osn_info.assist_cb = assist_cb;
1552 card->osn_info.data_cb = data_cb;
1553 return 0;
1554}
1555EXPORT_SYMBOL(qeth_osn_register);
1556
1557void qeth_osn_deregister(struct net_device *dev)
1558{
1559 struct qeth_card *card;
1560
4a71df50
FB		 1561 if (!dev)
1562 return;
509e2562 1563 card = dev->ml_priv;
4a71df50
FB		 1564 if (!card)
1565 return;
847a50fd 1566 QETH_CARD_TEXT(card, 2, "osndereg");
4a71df50
FB		 1567 card->osn_info.assist_cb = NULL;
1568 card->osn_info.data_cb = NULL;
1569 return;
1570}
1571EXPORT_SYMBOL(qeth_osn_deregister);
1572
b4d72c08
EC		 1573/* SETBRIDGEPORT support, async notifications */
1574
9f48b9db
EC		 1575enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1576
1577/**
1578 * qeth_bridge_emit_host_event() - bridgeport address change notification
1579 * @card: qeth_card structure pointer, for udev events.
1580 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1581 * and reset token and addr_lnid are unused and may be NULL.
1582 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1583 * object, 0 - addition of an object.
1584 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1585 * @token: "network token" structure identifying physical address of the port.
1586 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1587 *
1588 * This function is called when registrations and deregistrations are
1589 * reported by the hardware, and also when notifications are enabled -
1590 * for all currently registered addresses.
1591 */
1592static void qeth_bridge_emit_host_event(struct qeth_card *card,
1593 enum qeth_an_event_type evtype,
1594 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1595{
1596 char str[7][32];
1597 char *env[8];
1598 int i = 0;
1599
1600 switch (evtype) {
1601 case anev_reg_unreg:
1602 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1603 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1604 ? "deregister" : "register");
1605 env[i] = str[i]; i++;
1606 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1607 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1608 addr_lnid->lnid);
1609 env[i] = str[i]; i++;
1610 }
1611 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
9846e70b 1612 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
4d7def2a 1613 addr_lnid->mac);
9f48b9db
EC		 1614 env[i] = str[i]; i++;
1615 }
1616 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1617 token->cssid, token->ssid, token->devnum);
1618 env[i] = str[i]; i++;
1619 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1620 env[i] = str[i]; i++;
1621 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1622 token->chpid);
1623 env[i] = str[i]; i++;
1624 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1625 env[i] = str[i]; i++;
1626 break;
1627 case anev_abort:
1628 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1629 env[i] = str[i]; i++;
1630 break;
1631 case anev_reset:
1632 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1633 env[i] = str[i]; i++;
1634 break;
1635 }
1636 env[i] = NULL;
1637 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1638}
1639
b4d72c08
EC		 1640struct qeth_bridge_state_data {
1641 struct work_struct worker;
1642 struct qeth_card *card;
1643 struct qeth_sbp_state_change qports;
1644};
1645
1646static void qeth_bridge_state_change_worker(struct work_struct *work)
1647{
1648 struct qeth_bridge_state_data *data =
1649 container_of(work, struct qeth_bridge_state_data, worker);
1650 /* We are only interested in the first entry - local port */
1651 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1652 char env_locrem[32];
1653 char env_role[32];
1654 char env_state[32];
1655 char *env[] = {
1656 env_locrem,
1657 env_role,
1658 env_state,
1659 NULL
1660 };
1661
1662 /* Role should not change by itself, but if it did, */
1663 /* information from the hardware is authoritative. */
1664 mutex_lock(&data->card->conf_mutex);
1665 data->card->options.sbp.role = entry->role;
1666 mutex_unlock(&data->card->conf_mutex);
1667
1668 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1669 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1670 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1671 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1672 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1673 "<INVALID>");
1674 snprintf(env_state, sizeof(env_state), "STATE=%s",
1675 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1676 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1677 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1678 "<INVALID>");
1679 kobject_uevent_env(&data->card->gdev->dev.kobj,
1680 KOBJ_CHANGE, env);
1681 kfree(data);
1682}
1683
c044dc21
EC		 1684static void qeth_bridge_state_change(struct qeth_card *card,
1685 struct qeth_ipa_cmd *cmd)
b4d72c08
EC		 1686{
1687 struct qeth_sbp_state_change *qports =
1688 &cmd->data.sbp.data.state_change;
1689 struct qeth_bridge_state_data *data;
1690 int extrasize;
1691
1692 QETH_CARD_TEXT(card, 2, "brstchng");
1693 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
8a593148 1694 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
b4d72c08
EC		 1695 return;
1696 }
1697 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1698 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1699 GFP_ATOMIC);
1700 if (!data) {
1701 QETH_CARD_TEXT(card, 2, "BPSalloc");
1702 return;
1703 }
1704 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1705 data->card = card;
1706 memcpy(&data->qports, qports,
1707 sizeof(struct qeth_sbp_state_change) + extrasize);
1708 queue_work(qeth_wq, &data->worker);
1709}
b4d72c08 1710
9f48b9db
EC		 1711struct qeth_bridge_host_data {
1712 struct work_struct worker;
1713 struct qeth_card *card;
1714 struct qeth_ipacmd_addr_change hostevs;
1715};
1716
1717static void qeth_bridge_host_event_worker(struct work_struct *work)
1718{
1719 struct qeth_bridge_host_data *data =
1720 container_of(work, struct qeth_bridge_host_data, worker);
1721 int i;
1722
1723 if (data->hostevs.lost_event_mask) {
1724 dev_info(&data->card->gdev->dev,
9c23f4da 1725"Address notification from the Bridge Port stopped %s (%s)\n",
9f48b9db
EC		 1726 data->card->dev->name,
1727 (data->hostevs.lost_event_mask == 0x01)
1728 ? "Overflow"
1729 : (data->hostevs.lost_event_mask == 0x02)
1730 ? "Bridge port state change"
1731 : "Unknown reason");
1732 mutex_lock(&data->card->conf_mutex);
1733 data->card->options.sbp.hostnotification = 0;
1734 mutex_unlock(&data->card->conf_mutex);
1735 qeth_bridge_emit_host_event(data->card, anev_abort,
1736 0, NULL, NULL);
1737 } else
1738 for (i = 0; i < data->hostevs.num_entries; i++) {
1739 struct qeth_ipacmd_addr_change_entry *entry =
1740 &data->hostevs.entry[i];
1741 qeth_bridge_emit_host_event(data->card,
1742 anev_reg_unreg,
1743 entry->change_code,
1744 &entry->token, &entry->addr_lnid);
1745 }
1746 kfree(data);
1747}
1748
c044dc21
EC		 1749static void qeth_bridge_host_event(struct qeth_card *card,
1750 struct qeth_ipa_cmd *cmd)
9f48b9db
EC		 1751{
1752 struct qeth_ipacmd_addr_change *hostevs =
1753 &cmd->data.addrchange;
1754 struct qeth_bridge_host_data *data;
1755 int extrasize;
1756
1757 QETH_CARD_TEXT(card, 2, "brhostev");
1758 if (cmd->hdr.return_code != 0x0000) {
1759 if (cmd->hdr.return_code == 0x0010) {
1760 if (hostevs->lost_event_mask == 0x00)
1761 hostevs->lost_event_mask = 0xff;
1762 } else {
1763 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1764 cmd->hdr.return_code);
1765 return;
1766 }
1767 }
1768 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1769 hostevs->num_entries;
1770 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1771 GFP_ATOMIC);
1772 if (!data) {
1773 QETH_CARD_TEXT(card, 2, "BPHalloc");
1774 return;
1775 }
1776 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1777 data->card = card;
1778 memcpy(&data->hostevs, hostevs,
1779 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1780 queue_work(qeth_wq, &data->worker);
1781}
9f48b9db 1782
b4d72c08
EC		 1783/* SETBRIDGEPORT support; sending commands */
1784
1785struct _qeth_sbp_cbctl {
1786 u16 ipa_rc;
1787 u16 cmd_rc;
1788 union {
1789 u32 supported;
1790 struct {
1791 enum qeth_sbp_roles *role;
1792 enum qeth_sbp_states *state;
1793 } qports;
1794 } data;
1795};
1796
1797/**
1798 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1799 * @card: qeth_card structure pointer, for debug messages.
1800 * @cbctl: state structure with hardware return codes.
1801 * @setcmd: IPA command code
1802 *
1803 * Returns negative errno-compatible error indication or 0 on success.
1804 */
1805static int qeth_bridgeport_makerc(struct qeth_card *card,
1806 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1807{
1808 int rc;
9c23f4da 1809 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
b4d72c08 1810
9c23f4da
EC		 1811 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1812 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
b4d72c08
EC		 1813 switch (cbctl->cmd_rc) {
1814 case 0x0000:
1815 rc = 0;
1816 break;
9c23f4da 1817 case 0x2B04:
b4d72c08 1818 case 0x0004:
ffb95251 1819 rc = -EOPNOTSUPP;
b4d72c08 1820 break;
9c23f4da 1821 case 0x2B0C:
b4d72c08
EC		 1822 case 0x000C: /* Not configured as bridge Port */
1823 rc = -ENODEV; /* maybe not the best code here? */
1824 dev_err(&card->gdev->dev,
9c23f4da 1825 "The device is not configured as a Bridge Port\n");
b4d72c08 1826 break;
1b05cf62
EC		 1827 case 0x2B10:
1828 case 0x0010: /* OS mismatch */
1829 rc = -EPERM;
1830 dev_err(&card->gdev->dev,
1831 "A Bridge Port is already configured by a different operating system\n");
1832 break;
9c23f4da 1833 case 0x2B14:
b4d72c08
EC		 1834 case 0x0014: /* Another device is Primary */
1835 switch (setcmd) {
1836 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1837 rc = -EEXIST;
1838 dev_err(&card->gdev->dev,
9c23f4da 1839 "The LAN already has a primary Bridge Port\n");
b4d72c08
EC		 1840 break;
1841 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1842 rc = -EBUSY;
1843 dev_err(&card->gdev->dev,
9c23f4da 1844 "The device is already a primary Bridge Port\n");
b4d72c08
EC		 1845 break;
1846 default:
1847 rc = -EIO;
1848 }
1849 break;
9c23f4da 1850 case 0x2B18:
b4d72c08
EC		 1851 case 0x0018: /* This device is currently Secondary */
1852 rc = -EBUSY;
1853 dev_err(&card->gdev->dev,
9c23f4da 1854 "The device is already a secondary Bridge Port\n");
b4d72c08 1855 break;
9c23f4da 1856 case 0x2B1C:
b4d72c08
EC		 1857 case 0x001C: /* Limit for Secondary devices reached */
1858 rc = -EEXIST;
1859 dev_err(&card->gdev->dev,
9c23f4da 1860 "The LAN cannot have more secondary Bridge Ports\n");
b4d72c08 1861 break;
9c23f4da 1862 case 0x2B24:
b4d72c08
EC		 1863 case 0x0024: /* This device is currently Primary */
1864 rc = -EBUSY;
1865 dev_err(&card->gdev->dev,
9c23f4da 1866 "The device is already a primary Bridge Port\n");
b4d72c08 1867 break;
9c23f4da 1868 case 0x2B20:
b4d72c08
EC		 1869 case 0x0020: /* Not authorized by zManager */
1870 rc = -EACCES;
1871 dev_err(&card->gdev->dev,
9c23f4da 1872 "The device is not authorized to be a Bridge Port\n");
b4d72c08
EC		 1873 break;
1874 default:
1875 rc = -EIO;
1876 }
9c23f4da
EC		 1877 else
1878 switch (cbctl->ipa_rc) {
1879 case IPA_RC_NOTSUPP:
ffb95251 1880 rc = -EOPNOTSUPP;
9c23f4da
EC		 1881 break;
1882 case IPA_RC_UNSUPPORTED_COMMAND:
ffb95251 1883 rc = -EOPNOTSUPP;
9c23f4da
EC		 1884 break;
1885 default:
1886 rc = -EIO;
1887 }
1888
b4d72c08
EC		 1889 if (rc) {
1890 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1891 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1892 }
1893 return rc;
1894}
1895
9c23f4da
EC		 1896static inline int ipa_cmd_sbp(struct qeth_card *card)
1897{
1898 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1899 IPA_CMD_SETBRIDGEPORT_IQD :
1900 IPA_CMD_SETBRIDGEPORT_OSA;
1901}
1902
b4d72c08
EC		 1903static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1904 struct qeth_reply *reply, unsigned long data)
1905{
1906 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1907 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1908 QETH_CARD_TEXT(card, 2, "brqsupcb");
1909 cbctl->ipa_rc = cmd->hdr.return_code;
1910 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1911 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1912 cbctl->data.supported =
1913 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1914 } else {
1915 cbctl->data.supported = 0;
1916 }
1917 return 0;
1918}
1919
1920/**
1921 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1922 * @card: qeth_card structure pointer.
1923 *
1924 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1925 * strucutre: card->options.sbp.supported_funcs.
1926 */
c044dc21 1927static void qeth_bridgeport_query_support(struct qeth_card *card)
b4d72c08
EC		 1928{
1929 struct qeth_cmd_buffer *iob;
1930 struct qeth_ipa_cmd *cmd;
1931 struct _qeth_sbp_cbctl cbctl;
1932
1933 QETH_CARD_TEXT(card, 2, "brqsuppo");
9c23f4da 1934 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1935 if (!iob)
1936 return;
b4d72c08
EC		 1937 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1938 cmd->data.sbp.hdr.cmdlength =
1939 sizeof(struct qeth_ipacmd_sbp_hdr) +
1940 sizeof(struct qeth_sbp_query_cmds_supp);
1941 cmd->data.sbp.hdr.command_code =
1942 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1943 cmd->data.sbp.hdr.used_total = 1;
1944 cmd->data.sbp.hdr.seq_no = 1;
1945 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1946 (void *)&cbctl) ||
1947 qeth_bridgeport_makerc(card, &cbctl,
1948 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1949 /* non-zero makerc signifies failure, and produce messages */
1950 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1951 return;
1952 }
1953 card->options.sbp.supported_funcs = cbctl.data.supported;
1954}
b4d72c08
EC		 1955
1956static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1957 struct qeth_reply *reply, unsigned long data)
1958{
1959 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1960 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1961 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1962
1963 QETH_CARD_TEXT(card, 2, "brqprtcb");
1964 cbctl->ipa_rc = cmd->hdr.return_code;
1965 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1966 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1967 return 0;
1968 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1969 cbctl->cmd_rc = 0xffff;
1970 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1971 return 0;
1972 }
1973 /* first entry contains the state of the local port */
1974 if (qports->num_entries > 0) {
1975 if (cbctl->data.qports.role)
1976 *cbctl->data.qports.role = qports->entry[0].role;
1977 if (cbctl->data.qports.state)
1978 *cbctl->data.qports.state = qports->entry[0].state;
1979 }
1980 return 0;
1981}
1982
1983/**
1984 * qeth_bridgeport_query_ports() - query local bridgeport status.
1985 * @card: qeth_card structure pointer.
1986 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1987 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1988 *
1989 * Returns negative errno-compatible error indication or 0 on success.
1990 *
1991 * 'role' and 'state' are not updated in case of hardware operation failure.
1992 */
1993int qeth_bridgeport_query_ports(struct qeth_card *card,
1994 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1995{
1996 int rc = 0;
1997 struct qeth_cmd_buffer *iob;
1998 struct qeth_ipa_cmd *cmd;
1999 struct _qeth_sbp_cbctl cbctl = {
2000 .data = {
2001 .qports = {
2002 .role = role,
2003 .state = state,
2004 },
2005 },
2006 };
2007
2008 QETH_CARD_TEXT(card, 2, "brqports");
2009 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
2010 return -EOPNOTSUPP;
9c23f4da 2011 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 2012 if (!iob)
2013 return -ENOMEM;
b4d72c08
EC		 2014 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2015 cmd->data.sbp.hdr.cmdlength =
2016 sizeof(struct qeth_ipacmd_sbp_hdr);
2017 cmd->data.sbp.hdr.command_code =
2018 IPA_SBP_QUERY_BRIDGE_PORTS;
2019 cmd->data.sbp.hdr.used_total = 1;
2020 cmd->data.sbp.hdr.seq_no = 1;
2021 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
2022 (void *)&cbctl);
c88394e7 2023 if (rc < 0)
b4d72c08 2024 return rc;
c88394e7 2025 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
b4d72c08
EC		 2026}
2027EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
2028
2029static int qeth_bridgeport_set_cb(struct qeth_card *card,
2030 struct qeth_reply *reply, unsigned long data)
2031{
2032 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
2033 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
2034 QETH_CARD_TEXT(card, 2, "brsetrcb");
2035 cbctl->ipa_rc = cmd->hdr.return_code;
2036 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
2037 return 0;
2038}
2039
2040/**
2041 * qeth_bridgeport_setrole() - Assign primary role to the port.
2042 * @card: qeth_card structure pointer.
2043 * @role: Role to assign.
2044 *
2045 * Returns negative errno-compatible error indication or 0 on success.
2046 */
2047int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
2048{
2049 int rc = 0;
2050 int cmdlength;
2051 struct qeth_cmd_buffer *iob;
2052 struct qeth_ipa_cmd *cmd;
2053 struct _qeth_sbp_cbctl cbctl;
2054 enum qeth_ipa_sbp_cmd setcmd;
2055
2056 QETH_CARD_TEXT(card, 2, "brsetrol");
2057 switch (role) {
2058 case QETH_SBP_ROLE_NONE:
2059 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
2060 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2061 sizeof(struct qeth_sbp_reset_role);
2062 break;
2063 case QETH_SBP_ROLE_PRIMARY:
2064 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
2065 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2066 sizeof(struct qeth_sbp_set_primary);
2067 break;
2068 case QETH_SBP_ROLE_SECONDARY:
2069 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
2070 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2071 sizeof(struct qeth_sbp_set_secondary);
2072 break;
2073 default:
2074 return -EINVAL;
2075 }
2076 if (!(card->options.sbp.supported_funcs & setcmd))
2077 return -EOPNOTSUPP;
9c23f4da 2078 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 2079 if (!iob)
2080 return -ENOMEM;
b4d72c08
EC		 2081 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2082 cmd->data.sbp.hdr.cmdlength = cmdlength;
2083 cmd->data.sbp.hdr.command_code = setcmd;
2084 cmd->data.sbp.hdr.used_total = 1;
2085 cmd->data.sbp.hdr.seq_no = 1;
2086 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
2087 (void *)&cbctl);
c88394e7 2088 if (rc < 0)
b4d72c08 2089 return rc;
c88394e7 2090 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
b4d72c08
EC		 2091}
2092
9f48b9db
EC		 2093/**
2094 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
2095 * @card: qeth_card structure pointer, for debug messages.
2096 *
2097 * Returns negative errno-compatible error indication or 0 on success.
2098 */
2099static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
2100{
2101 int rc;
2102
2103 if (pnso_rc == 0)
2104 switch (response) {
2105 case 0x0001:
2106 rc = 0;
2107 break;
2108 case 0x0004:
2109 case 0x0100:
2110 case 0x0106:
ffb95251 2111 rc = -EOPNOTSUPP;
9f48b9db
EC		 2112 dev_err(&card->gdev->dev,
2113 "Setting address notification failed\n");
2114 break;
2115 case 0x0107:
2116 rc = -EAGAIN;
2117 break;
2118 default:
2119 rc = -EIO;
2120 }
2121 else
2122 rc = -EIO;
2123
2124 if (rc) {
2125 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
2126 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
2127 }
2128 return rc;
2129}
2130
2131static void qeth_bridgeport_an_set_cb(void *priv,
2132 enum qdio_brinfo_entry_type type, void *entry)
2133{
2134 struct qeth_card *card = (struct qeth_card *)priv;
2135 struct qdio_brinfo_entry_l2 *l2entry;
2136 u8 code;
2137
2138 if (type != l2_addr_lnid) {
2139 WARN_ON_ONCE(1);
2140 return;
2141 }
2142
2143 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
2144 code = IPA_ADDR_CHANGE_CODE_MACADDR;
2145 if (l2entry->addr_lnid.lnid)
2146 code |= IPA_ADDR_CHANGE_CODE_VLANID;
2147 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
2148 (struct net_if_token *)&l2entry->nit,
2149 (struct mac_addr_lnid *)&l2entry->addr_lnid);
2150}
2151
2152/**
2153 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
2154 * @card: qeth_card structure pointer.
2155 * @enable: 0 - disable, non-zero - enable notifications
2156 *
2157 * Returns negative errno-compatible error indication or 0 on success.
2158 *
2159 * On enable, emits a series of address notifications udev events for all
2160 * currently registered hosts.
2161 */
2162int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
2163{
2164 int rc;
2165 u16 response;
2166 struct ccw_device *ddev;
2167 struct subchannel_id schid;
2168
2169 if (!card)
2170 return -EINVAL;
2171 if (!card->options.sbp.supported_funcs)
2172 return -EOPNOTSUPP;
2173 ddev = CARD_DDEV(card);
2174 ccw_device_get_schid(ddev, &schid);
2175
2176 if (enable) {
2177 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
2178 rc = qdio_pnso_brinfo(schid, 1, &response,
2179 qeth_bridgeport_an_set_cb, card);
2180 } else
2181 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
2182 return qeth_anset_makerc(card, rc, response);
2183}
2184EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2185
4a71df50
FB		 2186module_init(qeth_l2_init);
2187module_exit(qeth_l2_exit);
2188MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2189MODULE_DESCRIPTION("qeth layer 2 discipline");
2190MODULE_LICENSE("GPL");
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