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nfp: fix error return code in nfp_net_netdev_open()
[mirror_ubuntu-bionic-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
b2f4de8b 407static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
4a71df50 408{
d11ba0c4
PT		 409 QETH_DBF_TEXT(SETUP , 2, "stopcard");
410 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 411
412 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 413 if (card->read.state == CH_STATE_UP &&
414 card->write.state == CH_STATE_UP &&
415 (card->state == CARD_STATE_UP)) {
416 if (recovery_mode &&
417 card->info.type != QETH_CARD_TYPE_OSN) {
418 qeth_l2_stop(card->dev);
419 } else {
420 rtnl_lock();
421 dev_close(card->dev);
422 rtnl_unlock();
423 }
70919e23 424 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
4a71df50
FB		 425 card->state = CARD_STATE_SOFTSETUP;
426 }
427 if (card->state == CARD_STATE_SOFTSETUP) {
fe5c8028 428 qeth_l2_del_all_macs(card, 0);
4a71df50
FB		 429 qeth_clear_ipacmd_list(card);
430 card->state = CARD_STATE_HARDSETUP;
431 }
432 if (card->state == CARD_STATE_HARDSETUP) {
433 qeth_qdio_clear_card(card, 0);
434 qeth_clear_qdio_buffers(card);
435 qeth_clear_working_pool_list(card);
436 card->state = CARD_STATE_DOWN;
437 }
438 if (card->state == CARD_STATE_DOWN) {
439 qeth_clear_cmd_buffers(&card->read);
440 qeth_clear_cmd_buffers(&card->write);
441 }
4a71df50
FB		 442}
443
a1c3ed4c
FB		 444static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
445 int budget, int *done)
4a71df50 446{
a1c3ed4c 447 int work_done = 0;
4a71df50
FB		 448 struct sk_buff *skb;
449 struct qeth_hdr *hdr;
4a71df50
FB		 450 unsigned int len;
451
a1c3ed4c 452 *done = 0;
18af5c17 453 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 454 while (budget) {
455 skb = qeth_core_get_next_skb(card,
b3332930 456 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 457 &card->rx.b_element, &card->rx.e_offset, &hdr);
458 if (!skb) {
459 *done = 1;
460 break;
4a71df50 461 }
a1c3ed4c 462 skb->dev = card->dev;
4a71df50
FB		 463 switch (hdr->hdr.l2.id) {
464 case QETH_HEADER_TYPE_LAYER2:
465 skb->pkt_type = PACKET_HOST;
466 skb->protocol = eth_type_trans(skb, skb->dev);
4d7def2a
TR		 467 if ((card->dev->features & NETIF_F_RXCSUM)
468 && ((hdr->hdr.l2.flags[1] &
469 (QETH_HDR_EXT_CSUM_HDR_REQ |
470 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
471 (QETH_HDR_EXT_CSUM_HDR_REQ |
472 QETH_HDR_EXT_CSUM_TRANSP_REQ)))
473 skb->ip_summed = CHECKSUM_UNNECESSARY;
474 else
475 skb->ip_summed = CHECKSUM_NONE;
12883725
UB		 476 if (skb->protocol == htons(ETH_P_802_2))
477 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
4a71df50 478 len = skb->len;
9abfa8cb 479 napi_gro_receive(&card->napi, skb);
4a71df50
FB		 480 break;
481 case QETH_HEADER_TYPE_OSN:
2d488c2f
UB		 482 if (card->info.type == QETH_CARD_TYPE_OSN) {
483 skb_push(skb, sizeof(struct qeth_hdr));
484 skb_copy_to_linear_data(skb, hdr,
4a71df50 485 sizeof(struct qeth_hdr));
2d488c2f
UB		 486 len = skb->len;
487 card->osn_info.data_cb(skb);
488 break;
489 }
490 /* else unknown */
4a71df50
FB		 491 default:
492 dev_kfree_skb_any(skb);
847a50fd 493 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 494 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 495 continue;
496 }
a1c3ed4c
FB		 497 work_done++;
498 budget--;
4a71df50
FB		 499 card->stats.rx_packets++;
500 card->stats.rx_bytes += len;
501 }
a1c3ed4c
FB		 502 return work_done;
503}
504
505static int qeth_l2_poll(struct napi_struct *napi, int budget)
506{
507 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
508 int work_done = 0;
509 struct qeth_qdio_buffer *buffer;
510 int done;
511 int new_budget = budget;
512
513 if (card->options.performance_stats) {
514 card->perf_stats.inbound_cnt++;
515 card->perf_stats.inbound_start_time = qeth_get_micros();
516 }
517
518 while (1) {
519 if (!card->rx.b_count) {
520 card->rx.qdio_err = 0;
521 card->rx.b_count = qdio_get_next_buffers(
522 card->data.ccwdev, 0, &card->rx.b_index,
523 &card->rx.qdio_err);
524 if (card->rx.b_count <= 0) {
525 card->rx.b_count = 0;
526 break;
527 }
528 card->rx.b_element =
529 &card->qdio.in_q->bufs[card->rx.b_index]
530 .buffer->element[0];
531 card->rx.e_offset = 0;
532 }
533
534 while (card->rx.b_count) {
535 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
536 if (!(card->rx.qdio_err &&
537 qeth_check_qdio_errors(card, buffer->buffer,
538 card->rx.qdio_err, "qinerr")))
539 work_done += qeth_l2_process_inbound_buffer(
540 card, new_budget, &done);
541 else
542 done = 1;
543
544 if (done) {
545 if (card->options.performance_stats)
546 card->perf_stats.bufs_rec++;
547 qeth_put_buffer_pool_entry(card,
548 buffer->pool_entry);
549 qeth_queue_input_buffer(card, card->rx.b_index);
550 card->rx.b_count--;
551 if (card->rx.b_count) {
552 card->rx.b_index =
553 (card->rx.b_index + 1) %
554 QDIO_MAX_BUFFERS_PER_Q;
555 card->rx.b_element =
556 &card->qdio.in_q
557 ->bufs[card->rx.b_index]
558 .buffer->element[0];
559 card->rx.e_offset = 0;
560 }
561 }
562
563 if (work_done >= budget)
564 goto out;
565 else
566 new_budget = budget - work_done;
567 }
568 }
569
570 napi_complete(napi);
571 if (qdio_start_irq(card->data.ccwdev, 0))
572 napi_schedule(&card->napi);
573out:
574 if (card->options.performance_stats)
575 card->perf_stats.inbound_time += qeth_get_micros() -
576 card->perf_stats.inbound_start_time;
577 return work_done;
4a71df50
FB		 578}
579
580static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac,
efbbc1d5 581 enum qeth_ipa_cmds ipacmd)
4a71df50
FB		 582{
583 struct qeth_ipa_cmd *cmd;
584 struct qeth_cmd_buffer *iob;
585
847a50fd 586 QETH_CARD_TEXT(card, 2, "L2sdmac");
4a71df50 587 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
1aec42bc
TR		 588 if (!iob)
589 return -ENOMEM;
4a71df50
FB		 590 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
591 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
592 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
efbbc1d5 593 return qeth_send_ipa_cmd(card, iob, NULL, NULL);
4a71df50
FB		 594}
595
efbbc1d5 596static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac)
4a71df50 597{
efbbc1d5 598 int rc;
4a71df50 599
efbbc1d5
EC		 600 QETH_CARD_TEXT(card, 2, "L2Setmac");
601 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
602 IPA_CMD_SETVMAC));
603 if (rc == 0) {
604 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
605 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN);
606 dev_info(&card->gdev->dev,
607 "MAC address %pM successfully registered on device %s\n",
608 card->dev->dev_addr, card->dev->name);
609 } else {
4a71df50 610 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
efbbc1d5
EC		 611 switch (rc) {
612 case -EEXIST:
0666eb06 613 dev_warn(&card->gdev->dev,
efbbc1d5 614 "MAC address %pM already exists\n", mac);
0666eb06 615 break;
efbbc1d5 616 case -EPERM:
0666eb06 617 dev_warn(&card->gdev->dev,
efbbc1d5 618 "MAC address %pM is not authorized\n", mac);
0666eb06
UB		 619 break;
620 }
4a71df50 621 }
efbbc1d5 622 return rc;
4a71df50
FB		 623}
624
625static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac)
626{
efbbc1d5
EC		 627 int rc;
628
847a50fd 629 QETH_CARD_TEXT(card, 2, "L2Delmac");
4a71df50
FB		 630 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
631 return 0;
efbbc1d5
EC		 632 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac,
633 IPA_CMD_DELVMAC));
634 if (rc == 0)
635 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
636 return rc;
4a71df50
FB		 637}
638
639static int qeth_l2_request_initial_mac(struct qeth_card *card)
640{
641 int rc = 0;
642 char vendor_pre[] = {0x02, 0x00, 0x00};
643
d11ba0c4
PT		 644 QETH_DBF_TEXT(SETUP, 2, "doL2init");
645 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card));
4a71df50 646
a134884a
SR		 647 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
648 rc = qeth_query_setadapterparms(card);
649 if (rc) {
650 QETH_DBF_MESSAGE(2, "could not query adapter "
651 "parameters on device %s: x%x\n",
652 CARD_BUS_ID(card), rc);
653 }
4a71df50
FB		 654 }
655
5113fec0
UB		 656 if (card->info.type == QETH_CARD_TYPE_IQD ||
657 card->info.type == QETH_CARD_TYPE_OSM ||
658 card->info.type == QETH_CARD_TYPE_OSX ||
659 card->info.guestlan) {
4a71df50
FB		 660 rc = qeth_setadpparms_change_macaddr(card);
661 if (rc) {
14cc21b6
FB		 662 QETH_DBF_MESSAGE(2, "couldn't get MAC address on "
663 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1aec42bc 664 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc);
4a71df50
FB		 665 return rc;
666 }
d11ba0c4 667 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN);
4a71df50 668 } else {
1833611d 669 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 670 memcpy(card->dev->dev_addr, vendor_pre, 3);
671 }
672 return 0;
673}
674
675static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
676{
677 struct sockaddr *addr = p;
509e2562 678 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 679 int rc = 0;
680
847a50fd 681 QETH_CARD_TEXT(card, 3, "setmac");
4a71df50
FB		 682
683 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) {
847a50fd 684 QETH_CARD_TEXT(card, 3, "setmcINV");
4a71df50
FB		 685 return -EOPNOTSUPP;
686 }
687
5113fec0
UB		 688 if (card->info.type == QETH_CARD_TYPE_OSN ||
689 card->info.type == QETH_CARD_TYPE_OSM ||
690 card->info.type == QETH_CARD_TYPE_OSX) {
847a50fd 691 QETH_CARD_TEXT(card, 3, "setmcTYP");
4a71df50
FB		 692 return -EOPNOTSUPP;
693 }
847a50fd 694 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN);
8e98ac48 695 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 696 QETH_CARD_TEXT(card, 3, "setmcREC");
8e98ac48
UB		 697 return -ERESTARTSYS;
698 }
4a71df50 699 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]);
efbbc1d5 700 if (!rc || (rc == -ENOENT))
4a71df50 701 rc = qeth_l2_send_setmac(card, addr->sa_data);
e0a8114c 702 return rc ? -EINVAL : 0;
4a71df50
FB		 703}
704
0db587b0
EC		 705static void qeth_promisc_to_bridge(struct qeth_card *card)
706{
707 struct net_device *dev = card->dev;
708 enum qeth_ipa_promisc_modes promisc_mode;
709 int role;
710 int rc;
711
712 QETH_CARD_TEXT(card, 3, "pmisc2br");
713
714 if (!card->options.sbp.reflect_promisc)
715 return;
716 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON
717 : SET_PROMISC_MODE_OFF;
718 if (promisc_mode == card->info.promisc_mode)
719 return;
720
721 if (promisc_mode == SET_PROMISC_MODE_ON) {
722 if (card->options.sbp.reflect_promisc_primary)
723 role = QETH_SBP_ROLE_PRIMARY;
724 else
725 role = QETH_SBP_ROLE_SECONDARY;
726 } else
727 role = QETH_SBP_ROLE_NONE;
728
729 rc = qeth_bridgeport_setrole(card, role);
730 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x",
731 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc);
732 if (!rc) {
733 card->options.sbp.role = role;
734 card->info.promisc_mode = promisc_mode;
735 }
fe5c8028
LD		 736
737}
738/* New MAC address is added to the hash table and marked to be written on card
739 * only if there is not in the hash table storage already
740 *
741*/
742static void
743qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha, u8 is_uc)
744{
745 struct qeth_mac *mac;
746
747 hash_for_each_possible(card->mac_htable, mac, hnode,
748 qeth_l2_mac_hash(ha->addr)) {
749 if (is_uc == mac->is_uc &&
750 !memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) {
5f78e29c 751 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
fe5c8028
LD		 752 return;
753 }
754 }
755
756 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC);
757
758 if (!mac)
759 return;
760
761 memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN);
762 mac->is_uc = is_uc;
5f78e29c 763 mac->disp_flag = QETH_DISP_ADDR_ADD;
fe5c8028
LD		 764
765 hash_add(card->mac_htable, &mac->hnode,
766 qeth_l2_mac_hash(mac->mac_addr));
767
0db587b0
EC		 768}
769
fe5c8028 770static void qeth_l2_set_rx_mode(struct net_device *dev)
4a71df50 771{
509e2562 772 struct qeth_card *card = dev->ml_priv;
ccffad25 773 struct netdev_hw_addr *ha;
fe5c8028
LD		 774 struct qeth_mac *mac;
775 struct hlist_node *tmp;
776 int i;
777 int rc;
4a71df50
FB		 778
779 if (card->info.type == QETH_CARD_TYPE_OSN)
fe5c8028 780 return;
4a71df50 781
847a50fd 782 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 783 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
784 (card->state != CARD_STATE_UP))
785 return;
fe5c8028 786
4a71df50 787 spin_lock_bh(&card->mclock);
fe5c8028 788
22bedad3 789 netdev_for_each_mc_addr(ha, dev)
fe5c8028 790 qeth_l2_add_mac(card, ha, 0);
7db2266a 791
32e7bfc4 792 netdev_for_each_uc_addr(ha, dev)
fe5c8028
LD		 793 qeth_l2_add_mac(card, ha, 1);
794
795 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) {
5f78e29c 796 if (mac->disp_flag == QETH_DISP_ADDR_DELETE) {
fe5c8028
LD		 797 if (!mac->is_uc)
798 rc = qeth_l2_send_delgroupmac(card,
799 mac->mac_addr);
800 else {
801 rc = qeth_l2_send_setdelmac(card, mac->mac_addr,
802 IPA_CMD_DELVMAC);
803 }
804
805 hash_del(&mac->hnode);
806 kfree(mac);
807
5f78e29c 808 } else if (mac->disp_flag == QETH_DISP_ADDR_ADD) {
fe5c8028
LD		 809 rc = qeth_l2_write_mac(card, mac);
810 if (rc) {
811 hash_del(&mac->hnode);
812 kfree(mac);
813 } else
5f78e29c 814 mac->disp_flag = QETH_DISP_ADDR_DELETE;
fe5c8028 815 } else
5f78e29c 816 mac->disp_flag = QETH_DISP_ADDR_DELETE;
fe5c8028 817 }
7db2266a 818
4a71df50 819 spin_unlock_bh(&card->mclock);
fe5c8028 820
0db587b0
EC		 821 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
822 qeth_setadp_promisc_mode(card);
823 else
824 qeth_promisc_to_bridge(card);
4a71df50
FB		 825}
826
827static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
828{
829 int rc;
830 struct qeth_hdr *hdr = NULL;
831 int elements = 0;
509e2562 832 struct qeth_card *card = dev->ml_priv;
4a71df50 833 struct sk_buff *new_skb = skb;
ce73e10e 834 int cast_type = qeth_l2_get_cast_type(card, skb);
290b8348 835 struct qeth_qdio_out_q *queue;
4a71df50 836 int tx_bytes = skb->len;
683d718a
FB		 837 int data_offset = -1;
838 int elements_needed = 0;
839 int hd_len = 0;
d52aec97 840 int nr_frags;
4a71df50 841
290b8348
SR		 842 if (card->qdio.do_prio_queueing || (cast_type &&
843 card->info.is_multicast_different))
844 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb,
845 qeth_get_ip_version(skb), cast_type)];
846 else
847 queue = card->qdio.out_qs[card->qdio.default_out_queue];
848
4a71df50
FB		 849 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
850 card->stats.tx_carrier_errors++;
851 goto tx_drop;
852 }
853
854 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
855 (skb->protocol == htons(ETH_P_IPV6)))
856 goto tx_drop;
857
858 if (card->options.performance_stats) {
859 card->perf_stats.outbound_cnt++;
860 card->perf_stats.outbound_start_time = qeth_get_micros();
861 }
862 netif_stop_queue(dev);
863
d52aec97
EC		 864 /* fix hardware limitation: as long as we do not have sbal
865 * chaining we can not send long frag lists
866 */
867 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
868 !qeth_get_elements_no(card, new_skb, 0)) {
6059c905
EC		 869 int lin_rc = skb_linearize(new_skb);
870
871 if (card->options.performance_stats) {
872 if (lin_rc)
873 card->perf_stats.tx_linfail++;
874 else
875 card->perf_stats.tx_lin++;
876 }
877 if (lin_rc)
d52aec97 878 goto tx_drop;
d52aec97
EC		 879 }
880
4a71df50
FB		 881 if (card->info.type == QETH_CARD_TYPE_OSN)
882 hdr = (struct qeth_hdr *)skb->data;
883 else {
64ef8957 884 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 885 new_skb = skb;
886 data_offset = ETH_HLEN;
887 hd_len = ETH_HLEN;
888 hdr = kmem_cache_alloc(qeth_core_header_cache,
889 GFP_ATOMIC);
890 if (!hdr)
891 goto tx_drop;
892 elements_needed++;
893 skb_reset_mac_header(new_skb);
43934077 894 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
683d718a
FB		 895 hdr->hdr.l2.pkt_length = new_skb->len;
896 memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
897 skb_mac_header(new_skb), ETH_HLEN);
898 } else {
899 /* create a clone with writeable headroom */
900 new_skb = skb_realloc_headroom(skb,
901 sizeof(struct qeth_hdr));
902 if (!new_skb)
903 goto tx_drop;
904 hdr = (struct qeth_hdr *)skb_push(new_skb,
f90b744e 905 sizeof(struct qeth_hdr));
683d718a 906 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
43934077 907 qeth_l2_fill_header(card, hdr, new_skb, cast_type);
4d7def2a
TR		 908 if (new_skb->ip_summed == CHECKSUM_PARTIAL)
909 qeth_l2_hdr_csum(card, hdr, new_skb);
683d718a 910 }
4a71df50
FB		 911 }
912
065cc782 913 elements = qeth_get_elements_no(card, new_skb, elements_needed);
64ef8957
FB		 914 if (!elements) {
915 if (data_offset >= 0)
916 kmem_cache_free(qeth_core_header_cache, hdr);
917 goto tx_drop;
f61a0d05 918 }
4a71df50 919
51aa165c 920 if (card->info.type != QETH_CARD_TYPE_IQD) {
d4ae1f5e 921 if (qeth_hdr_chk_and_bounce(new_skb, &hdr,
51aa165c
FB		 922 sizeof(struct qeth_hdr_layer2)))
923 goto tx_drop;
4a71df50 924 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 925 elements);
51aa165c 926 } else
4a71df50 927 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 928 elements, data_offset, hd_len);
4a71df50
FB		 929 if (!rc) {
930 card->stats.tx_packets++;
931 card->stats.tx_bytes += tx_bytes;
d52aec97
EC		 932 if (card->options.performance_stats) {
933 nr_frags = skb_shinfo(new_skb)->nr_frags;
934 if (nr_frags) {
935 card->perf_stats.sg_skbs_sent++;
936 /* nr_frags + skb->data */
937 card->perf_stats.sg_frags_sent += nr_frags + 1;
938 }
939 }
4a71df50
FB		 940 if (new_skb != skb)
941 dev_kfree_skb_any(skb);
ec634fe3 942 rc = NETDEV_TX_OK;
4a71df50 943 } else {
683d718a
FB		 944 if (data_offset >= 0)
945 kmem_cache_free(qeth_core_header_cache, hdr);
946
4a71df50
FB		 947 if (rc == -EBUSY) {
948 if (new_skb != skb)
949 dev_kfree_skb_any(new_skb);
950 return NETDEV_TX_BUSY;
951 } else
952 goto tx_drop;
953 }
954
955 netif_wake_queue(dev);
956 if (card->options.performance_stats)
957 card->perf_stats.outbound_time += qeth_get_micros() -
958 card->perf_stats.outbound_start_time;
959 return rc;
960
961tx_drop:
962 card->stats.tx_dropped++;
963 card->stats.tx_errors++;
964 if ((new_skb != skb) && new_skb)
965 dev_kfree_skb_any(new_skb);
966 dev_kfree_skb_any(skb);
d0ec0f54 967 netif_wake_queue(dev);
4a71df50
FB		 968 return NETDEV_TX_OK;
969}
970
39423440 971static int __qeth_l2_open(struct net_device *dev)
4a71df50 972{
509e2562 973 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 974 int rc = 0;
4a71df50 975
847a50fd 976 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 977 if (card->state == CARD_STATE_UP)
978 return rc;
4a71df50
FB		 979 if (card->state != CARD_STATE_SOFTSETUP)
980 return -ENODEV;
981
982 if ((card->info.type != QETH_CARD_TYPE_OSN) &&
983 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
847a50fd 984 QETH_CARD_TEXT(card, 4, "nomacadr");
4a71df50
FB		 985 return -EPERM;
986 }
987 card->data.state = CH_STATE_UP;
988 card->state = CARD_STATE_UP;
4a71df50
FB		 989 netif_start_queue(dev);
990
a1c3ed4c
FB		 991 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
992 napi_enable(&card->napi);
993 napi_schedule(&card->napi);
994 } else
995 rc = -EIO;
996 return rc;
4a71df50
FB		 997}
998
39423440
UB		 999static int qeth_l2_open(struct net_device *dev)
1000{
1001 struct qeth_card *card = dev->ml_priv;
1002
1003 QETH_CARD_TEXT(card, 5, "qethope_");
1004 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1005 QETH_CARD_TEXT(card, 3, "openREC");
1006 return -ERESTARTSYS;
1007 }
1008 return __qeth_l2_open(dev);
1009}
1010
4a71df50
FB		 1011static int qeth_l2_stop(struct net_device *dev)
1012{
509e2562 1013 struct qeth_card *card = dev->ml_priv;
4a71df50 1014
847a50fd 1015 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 1016 netif_tx_disable(dev);
a1c3ed4c 1017 if (card->state == CARD_STATE_UP) {
4a71df50 1018 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 1019 napi_disable(&card->napi);
1020 }
4a71df50
FB		 1021 return 0;
1022}
1023
1024static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
1025{
1026 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1027
b4d72c08 1028 qeth_l2_create_device_attributes(&gdev->dev);
4a71df50 1029 INIT_LIST_HEAD(&card->vid_list);
fe5c8028 1030 hash_init(card->mac_htable);
4a71df50 1031 card->options.layer2 = 1;
1da74b1c 1032 card->info.hwtrap = 0;
4a71df50
FB		 1033 return 0;
1034}
1035
1036static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
1037{
1038 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1039
b4d72c08 1040 qeth_l2_remove_device_attributes(&cgdev->dev);
f2148565 1041 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 1042 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1043
70919e23 1044 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 1045 qeth_l2_set_offline(cgdev);
4a71df50
FB		 1046
1047 if (card->dev) {
7831b4ff 1048 netif_napi_del(&card->napi);
4a71df50
FB		 1049 unregister_netdev(card->dev);
1050 card->dev = NULL;
1051 }
4a71df50
FB		 1052 return;
1053}
1054
0fc0b732 1055static const struct ethtool_ops qeth_l2_ethtool_ops = {
4a71df50 1056 .get_link = ethtool_op_get_link,
4a71df50
FB		 1057 .get_strings = qeth_core_get_strings,
1058 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1059 .get_sset_count = qeth_core_get_sset_count,
4a71df50 1060 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 1061 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 1062};
1063
0fc0b732 1064static const struct ethtool_ops qeth_l2_osn_ops = {
4a71df50
FB		 1065 .get_strings = qeth_core_get_strings,
1066 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 1067 .get_sset_count = qeth_core_get_sset_count,
4a71df50
FB		 1068 .get_drvinfo = qeth_core_get_drvinfo,
1069};
1070
3d58cefd 1071static const struct net_device_ops qeth_l2_netdev_ops = {
8403b13c
FB		 1072 .ndo_open = qeth_l2_open,
1073 .ndo_stop = qeth_l2_stop,
1074 .ndo_get_stats = qeth_get_stats,
1075 .ndo_start_xmit = qeth_l2_hard_start_xmit,
1076 .ndo_validate_addr = eth_validate_addr,
fe5c8028 1077 .ndo_set_rx_mode = qeth_l2_set_rx_mode,
8403b13c
FB		 1078 .ndo_do_ioctl = qeth_l2_do_ioctl,
1079 .ndo_set_mac_address = qeth_l2_set_mac_address,
1080 .ndo_change_mtu = qeth_change_mtu,
1081 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
1082 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
1083 .ndo_tx_timeout = qeth_tx_timeout,
8f43fb00
TR		 1084 .ndo_fix_features = qeth_fix_features,
1085 .ndo_set_features = qeth_set_features
8403b13c
FB		 1086};
1087
4a71df50
FB		 1088static int qeth_l2_setup_netdev(struct qeth_card *card)
1089{
1090 switch (card->info.type) {
4a71df50 1091 case QETH_CARD_TYPE_IQD:
c835a677
TG		 1092 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
1093 ether_setup);
4a71df50
FB		 1094 break;
1095 case QETH_CARD_TYPE_OSN:
c835a677
TG		 1096 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
1097 ether_setup);
4a71df50
FB		 1098 card->dev->flags |= IFF_NOARP;
1099 break;
1100 default:
1101 card->dev = alloc_etherdev(0);
1102 }
1103
1104 if (!card->dev)
1105 return -ENODEV;
1106
509e2562 1107 card->dev->ml_priv = card;
4a71df50 1108 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 1109 card->dev->mtu = card->info.initial_mtu;
8403b13c 1110 card->dev->netdev_ops = &qeth_l2_netdev_ops;
7ad24ea4
WK		 1111 card->dev->ethtool_ops =
1112 (card->info.type != QETH_CARD_TYPE_OSN) ?
1113 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
f646968f 1114 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
4d7def2a 1115 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
8f43fb00 1116 card->dev->hw_features = NETIF_F_SG;
9bdc4411 1117 card->dev->vlan_features = NETIF_F_SG;
8f43fb00 1118 /* OSA 3S and earlier has no RX/TX support */
9bdc4411 1119 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) {
8f43fb00 1120 card->dev->hw_features |= NETIF_F_IP_CSUM;
9bdc4411
HW		 1121 card->dev->vlan_features |= NETIF_F_IP_CSUM;
1122 }
1123 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
8f43fb00 1124 card->dev->hw_features |= NETIF_F_RXCSUM;
9bdc4411
HW		 1125 card->dev->vlan_features |= NETIF_F_RXCSUM;
1126 }
8f43fb00
TR		 1127 /* Turn on SG per default */
1128 card->dev->features |= NETIF_F_SG;
4d7def2a 1129 }
4a71df50
FB		 1130 card->info.broadcast_capable = 1;
1131 qeth_l2_request_initial_mac(card);
d52aec97
EC		 1132 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
1133 PAGE_SIZE;
1134 card->dev->gso_max_segs = (QETH_MAX_BUFFER_ELEMENTS(card) - 1);
4a71df50 1135 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 1136 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
e5ebe632 1137 netif_carrier_off(card->dev);
4a71df50
FB		 1138 return register_netdev(card->dev);
1139}
1140
4d7def2a
TR		 1141static int qeth_l2_start_ipassists(struct qeth_card *card)
1142{
1143 /* configure isolation level */
1144 if (qeth_set_access_ctrl_online(card, 0))
1145 return -ENODEV;
4d7def2a
TR		 1146 return 0;
1147}
1148
4a71df50
FB		 1149static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1150{
1151 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1152 int rc = 0;
1153 enum qeth_card_states recover_flag;
1154
9dc48ccc 1155 mutex_lock(&card->discipline_mutex);
c4949f07 1156 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1157 QETH_DBF_TEXT(SETUP, 2, "setonlin");
1158 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 1159
4a71df50 1160 recover_flag = card->state;
4a71df50
FB		 1161 rc = qeth_core_hardsetup_card(card);
1162 if (rc) {
1aec42bc 1163 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
aa909224 1164 rc = -ENODEV;
4a71df50
FB		 1165 goto out_remove;
1166 }
c044dc21
EC		 1167 qeth_bridgeport_query_support(card);
1168 if (card->options.sbp.supported_funcs)
1169 dev_info(&card->gdev->dev,
9c23f4da 1170 "The device represents a Bridge Capable Port\n");
395672e0 1171 qeth_trace_features(card);
4a71df50 1172
aa909224
UB		 1173 if (!card->dev && qeth_l2_setup_netdev(card)) {
1174 rc = -ENODEV;
4a71df50 1175 goto out_remove;
aa909224 1176 }
4a71df50
FB		 1177
1178 if (card->info.type != QETH_CARD_TYPE_OSN)
1179 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]);
1180
1da74b1c
FB		 1181 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
1182 if (card->info.hwtrap &&
1183 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
1184 card->info.hwtrap = 0;
1185 } else
1186 card->info.hwtrap = 0;
1187
b4d72c08
EC		 1188 qeth_l2_setup_bridgeport_attrs(card);
1189
4a71df50 1190 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 1191 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 1192 qeth_print_status_message(card);
1193
1194 /* softsetup */
d11ba0c4 1195 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 1196
1197 rc = qeth_send_startlan(card);
1198 if (rc) {
d11ba0c4 1199 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 1200 if (rc == 0xe080) {
74eacdb9
FB		 1201 dev_warn(&card->gdev->dev,
1202 "The LAN is offline\n");
4a71df50 1203 card->lan_online = 0;
2b6203bb 1204 goto contin;
4a71df50 1205 }
aa909224 1206 rc = -ENODEV;
f2148565 1207 goto out_remove;
4a71df50
FB		 1208 } else
1209 card->lan_online = 1;
1210
2b6203bb 1211contin:
5113fec0 1212 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
0f54761d 1213 (card->info.type == QETH_CARD_TYPE_OSX)) {
8f43fb00
TR		 1214 rc = qeth_l2_start_ipassists(card);
1215 if (rc)
0f54761d 1216 goto out_remove;
0f54761d 1217 }
5113fec0
UB		 1218
1219 if (card->info.type != QETH_CARD_TYPE_OSN &&
1220 card->info.type != QETH_CARD_TYPE_OSM)
70919e23 1221 qeth_l2_process_vlans(card);
4a71df50
FB		 1222
1223 netif_tx_disable(card->dev);
1224
1225 rc = qeth_init_qdio_queues(card);
1226 if (rc) {
d11ba0c4 1227 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 1228 rc = -ENODEV;
4a71df50
FB		 1229 goto out_remove;
1230 }
1231 card->state = CARD_STATE_SOFTSETUP;
2b6203bb
UB		 1232 if (card->lan_online)
1233 netif_carrier_on(card->dev);
1234 else
1235 netif_carrier_off(card->dev);
4a71df50
FB		 1236
1237 qeth_set_allowed_threads(card, 0xffffffff, 0);
1238 if (recover_flag == CARD_STATE_RECOVER) {
1239 if (recovery_mode &&
1240 card->info.type != QETH_CARD_TYPE_OSN) {
39423440 1241 __qeth_l2_open(card->dev);
4a71df50
FB		 1242 } else {
1243 rtnl_lock();
1244 dev_open(card->dev);
1245 rtnl_unlock();
1246 }
1247 /* this also sets saved unicast addresses */
fe5c8028 1248 qeth_l2_set_rx_mode(card->dev);
4a71df50
FB		 1249 }
1250 /* let user_space know that device is online */
1251 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1252 mutex_unlock(&card->conf_mutex);
9dc48ccc 1253 mutex_unlock(&card->discipline_mutex);
4a71df50 1254 return 0;
aa909224 1255
4a71df50 1256out_remove:
4a71df50
FB		 1257 qeth_l2_stop_card(card, 0);
1258 ccw_device_set_offline(CARD_DDEV(card));
1259 ccw_device_set_offline(CARD_WDEV(card));
1260 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 1261 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1262 if (recover_flag == CARD_STATE_RECOVER)
1263 card->state = CARD_STATE_RECOVER;
1264 else
1265 card->state = CARD_STATE_DOWN;
c4949f07 1266 mutex_unlock(&card->conf_mutex);
9dc48ccc 1267 mutex_unlock(&card->discipline_mutex);
aa909224 1268 return rc;
4a71df50
FB		 1269}
1270
1271static int qeth_l2_set_online(struct ccwgroup_device *gdev)
1272{
1273 return __qeth_l2_set_online(gdev, 0);
1274}
1275
1276static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
1277 int recovery_mode)
1278{
1279 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
1280 int rc = 0, rc2 = 0, rc3 = 0;
1281 enum qeth_card_states recover_flag;
1282
9dc48ccc 1283 mutex_lock(&card->discipline_mutex);
c4949f07 1284 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 1285 QETH_DBF_TEXT(SETUP, 3, "setoffl");
1286 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 1287
1288 if (card->dev && netif_carrier_ok(card->dev))
1289 netif_carrier_off(card->dev);
1290 recover_flag = card->state;
1da74b1c
FB		 1291 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
1292 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
1293 card->info.hwtrap = 1;
1294 }
0f5623c9 1295 qeth_l2_stop_card(card, recovery_mode);
4a71df50
FB		 1296 rc = ccw_device_set_offline(CARD_DDEV(card));
1297 rc2 = ccw_device_set_offline(CARD_WDEV(card));
1298 rc3 = ccw_device_set_offline(CARD_RDEV(card));
1299 if (!rc)
1300 rc = (rc2) ? rc2 : rc3;
1301 if (rc)
d11ba0c4 1302 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 1303 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1304 if (recover_flag == CARD_STATE_UP)
1305 card->state = CARD_STATE_RECOVER;
1306 /* let user_space know that device is offline */
1307 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 1308 mutex_unlock(&card->conf_mutex);
9dc48ccc 1309 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 1310 return 0;
1311}
1312
1313static int qeth_l2_set_offline(struct ccwgroup_device *cgdev)
1314{
1315 return __qeth_l2_set_offline(cgdev, 0);
1316}
1317
1318static int qeth_l2_recover(void *ptr)
1319{
1320 struct qeth_card *card;
1321 int rc = 0;
1322
1323 card = (struct qeth_card *) ptr;
847a50fd 1324 QETH_CARD_TEXT(card, 2, "recover1");
4a71df50
FB		 1325 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1326 return 0;
847a50fd 1327 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 1328 dev_warn(&card->gdev->dev,
1329 "A recovery process has been started for the device\n");
65d8013c 1330 qeth_set_recovery_task(card);
4a71df50
FB		 1331 __qeth_l2_set_offline(card->gdev, 1);
1332 rc = __qeth_l2_set_online(card->gdev, 1);
4a71df50 1333 if (!rc)
74eacdb9
FB		 1334 dev_info(&card->gdev->dev,
1335 "Device successfully recovered!\n");
28a7e4c9 1336 else {
0f54761d
SR		 1337 qeth_close_dev(card);
1338 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 1339 "failed to recover an error on the device\n");
28a7e4c9 1340 }
65d8013c 1341 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 1342 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1343 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 1344 return 0;
1345}
1346
1347static int __init qeth_l2_init(void)
1348{
74eacdb9 1349 pr_info("register layer 2 discipline\n");
4a71df50
FB		 1350 return 0;
1351}
1352
1353static void __exit qeth_l2_exit(void)
1354{
74eacdb9 1355 pr_info("unregister layer 2 discipline\n");
4a71df50
FB		 1356}
1357
1358static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
1359{
1360 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 1361 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 1362 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
1363 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 1364 qeth_qdio_clear_card(card, 0);
1365 qeth_clear_qdio_buffers(card);
22ae2790 1366 qdio_free(CARD_DDEV(card));
4a71df50
FB		 1367}
1368
bbcfcdc8
FB		 1369static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
1370{
1371 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1372
1373 if (card->dev)
1374 netif_device_detach(card->dev);
1375 qeth_set_allowed_threads(card, 0, 1);
1376 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
1377 if (gdev->state == CCWGROUP_OFFLINE)
1378 return 0;
1379 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 1380 if (card->info.hwtrap)
1381 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 1382 __qeth_l2_set_offline(card->gdev, 1);
1383 } else
1384 __qeth_l2_set_offline(card->gdev, 0);
1385 return 0;
1386}
1387
1388static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
1389{
1390 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
1391 int rc = 0;
1392
1393 if (gdev->state == CCWGROUP_OFFLINE)
1394 goto out;
1395
1396 if (card->state == CARD_STATE_RECOVER) {
1397 rc = __qeth_l2_set_online(card->gdev, 1);
1398 if (rc) {
869da90b
UB		 1399 rtnl_lock();
1400 dev_close(card->dev);
1401 rtnl_unlock();
bbcfcdc8
FB		 1402 }
1403 } else
1404 rc = __qeth_l2_set_online(card->gdev, 0);
1405out:
1406 qeth_set_allowed_threads(card, 0xffffffff, 0);
1407 if (card->dev)
1408 netif_device_attach(card->dev);
1409 if (rc)
1410 dev_warn(&card->gdev->dev, "The qeth device driver "
1411 "failed to recover an error on the device\n");
1412 return rc;
1413}
1414
c044dc21
EC		 1415/* Returns zero if the command is successfully "consumed" */
1416static int qeth_l2_control_event(struct qeth_card *card,
1417 struct qeth_ipa_cmd *cmd)
1418{
1419 switch (cmd->hdr.command) {
9c23f4da
EC		 1420 case IPA_CMD_SETBRIDGEPORT_OSA:
1421 case IPA_CMD_SETBRIDGEPORT_IQD:
c044dc21
EC		 1422 if (cmd->data.sbp.hdr.command_code ==
1423 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) {
1424 qeth_bridge_state_change(card, cmd);
1425 return 0;
1426 } else
1427 return 1;
1428 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
1429 qeth_bridge_host_event(card, cmd);
1430 return 0;
1431 default:
1432 return 1;
1433 }
1434}
1435
c041f2d4
SO		 1436struct qeth_discipline qeth_l2_discipline = {
1437 .start_poll = qeth_qdio_start_poll,
1438 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
1439 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
1440 .recover = qeth_l2_recover,
1441 .setup = qeth_l2_probe_device,
4a71df50
FB		 1442 .remove = qeth_l2_remove_device,
1443 .set_online = qeth_l2_set_online,
1444 .set_offline = qeth_l2_set_offline,
1445 .shutdown = qeth_l2_shutdown,
bbcfcdc8
FB		 1446 .freeze = qeth_l2_pm_suspend,
1447 .thaw = qeth_l2_pm_resume,
1448 .restore = qeth_l2_pm_resume,
c044dc21 1449 .control_event_handler = qeth_l2_control_event,
4a71df50 1450};
c041f2d4 1451EXPORT_SYMBOL_GPL(qeth_l2_discipline);
4a71df50
FB		 1452
1453static int qeth_osn_send_control_data(struct qeth_card *card, int len,
1454 struct qeth_cmd_buffer *iob)
1455{
1456 unsigned long flags;
1457 int rc = 0;
1458
847a50fd 1459 QETH_CARD_TEXT(card, 5, "osndctrd");
4a71df50
FB		 1460
1461 wait_event(card->wait_q,
1462 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1463 qeth_prepare_control_data(card, len, iob);
847a50fd 1464 QETH_CARD_TEXT(card, 6, "osnoirqp");
4a71df50
FB		 1465 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1466 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1467 (addr_t) iob, 0, 0);
1468 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1469 if (rc) {
14cc21b6 1470 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: "
4a71df50 1471 "ccw_device_start rc = %i\n", rc);
847a50fd 1472 QETH_CARD_TEXT_(card, 2, " err%d", rc);
4a71df50
FB		 1473 qeth_release_buffer(iob->channel, iob);
1474 atomic_set(&card->write.irq_pending, 0);
1475 wake_up(&card->wait_q);
1476 }
1477 return rc;
1478}
1479
1480static int qeth_osn_send_ipa_cmd(struct qeth_card *card,
1481 struct qeth_cmd_buffer *iob, int data_len)
1482{
1483 u16 s1, s2;
1484
847a50fd 1485 QETH_CARD_TEXT(card, 4, "osndipa");
4a71df50
FB		 1486
1487 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1488 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1489 s2 = (u16)data_len;
1490 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1491 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1492 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1493 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1494 return qeth_osn_send_control_data(card, s1, iob);
1495}
1496
1497int qeth_osn_assist(struct net_device *dev, void *data, int data_len)
1498{
1499 struct qeth_cmd_buffer *iob;
1500 struct qeth_card *card;
1501 int rc;
1502
4a71df50
FB		 1503 if (!dev)
1504 return -ENODEV;
509e2562 1505 card = dev->ml_priv;
4a71df50
FB		 1506 if (!card)
1507 return -ENODEV;
847a50fd 1508 QETH_CARD_TEXT(card, 2, "osnsdmc");
c3521254 1509 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 1510 return -ENODEV;
1511 iob = qeth_wait_for_buffer(&card->write);
1512 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
1513 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
1514 return rc;
1515}
1516EXPORT_SYMBOL(qeth_osn_assist);
1517
1518int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev,
1519 int (*assist_cb)(struct net_device *, void *),
1520 int (*data_cb)(struct sk_buff *))
1521{
1522 struct qeth_card *card;
1523
4a71df50
FB		 1524 *dev = qeth_l2_netdev_by_devno(read_dev_no);
1525 if (*dev == NULL)
1526 return -ENODEV;
509e2562 1527 card = (*dev)->ml_priv;
4a71df50
FB		 1528 if (!card)
1529 return -ENODEV;
847a50fd 1530 QETH_CARD_TEXT(card, 2, "osnreg");
4a71df50
FB		 1531 if ((assist_cb == NULL) || (data_cb == NULL))
1532 return -EINVAL;
1533 card->osn_info.assist_cb = assist_cb;
1534 card->osn_info.data_cb = data_cb;
1535 return 0;
1536}
1537EXPORT_SYMBOL(qeth_osn_register);
1538
1539void qeth_osn_deregister(struct net_device *dev)
1540{
1541 struct qeth_card *card;
1542
4a71df50
FB		 1543 if (!dev)
1544 return;
509e2562 1545 card = dev->ml_priv;
4a71df50
FB		 1546 if (!card)
1547 return;
847a50fd 1548 QETH_CARD_TEXT(card, 2, "osndereg");
4a71df50
FB		 1549 card->osn_info.assist_cb = NULL;
1550 card->osn_info.data_cb = NULL;
1551 return;
1552}
1553EXPORT_SYMBOL(qeth_osn_deregister);
1554
b4d72c08
EC		 1555/* SETBRIDGEPORT support, async notifications */
1556
9f48b9db
EC		 1557enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset};
1558
1559/**
1560 * qeth_bridge_emit_host_event() - bridgeport address change notification
1561 * @card: qeth_card structure pointer, for udev events.
1562 * @evtype: "normal" register/unregister, or abort, or reset. For abort
1563 * and reset token and addr_lnid are unused and may be NULL.
1564 * @code: event bitmask: high order bit 0x80 value 1 means removal of an
1565 * object, 0 - addition of an object.
1566 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC.
1567 * @token: "network token" structure identifying physical address of the port.
1568 * @addr_lnid: pointer to structure with MAC address and VLAN ID.
1569 *
1570 * This function is called when registrations and deregistrations are
1571 * reported by the hardware, and also when notifications are enabled -
1572 * for all currently registered addresses.
1573 */
1574static void qeth_bridge_emit_host_event(struct qeth_card *card,
1575 enum qeth_an_event_type evtype,
1576 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid)
1577{
1578 char str[7][32];
1579 char *env[8];
1580 int i = 0;
1581
1582 switch (evtype) {
1583 case anev_reg_unreg:
1584 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s",
1585 (code & IPA_ADDR_CHANGE_CODE_REMOVAL)
1586 ? "deregister" : "register");
1587 env[i] = str[i]; i++;
1588 if (code & IPA_ADDR_CHANGE_CODE_VLANID) {
1589 snprintf(str[i], sizeof(str[i]), "VLAN=%d",
1590 addr_lnid->lnid);
1591 env[i] = str[i]; i++;
1592 }
1593 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) {
9846e70b 1594 snprintf(str[i], sizeof(str[i]), "MAC=%pM",
4d7def2a 1595 addr_lnid->mac);
9f48b9db
EC		 1596 env[i] = str[i]; i++;
1597 }
1598 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x",
1599 token->cssid, token->ssid, token->devnum);
1600 env[i] = str[i]; i++;
1601 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid);
1602 env[i] = str[i]; i++;
1603 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x",
1604 token->chpid);
1605 env[i] = str[i]; i++;
1606 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid);
1607 env[i] = str[i]; i++;
1608 break;
1609 case anev_abort:
1610 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort");
1611 env[i] = str[i]; i++;
1612 break;
1613 case anev_reset:
1614 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset");
1615 env[i] = str[i]; i++;
1616 break;
1617 }
1618 env[i] = NULL;
1619 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env);
1620}
1621
b4d72c08
EC		 1622struct qeth_bridge_state_data {
1623 struct work_struct worker;
1624 struct qeth_card *card;
1625 struct qeth_sbp_state_change qports;
1626};
1627
1628static void qeth_bridge_state_change_worker(struct work_struct *work)
1629{
1630 struct qeth_bridge_state_data *data =
1631 container_of(work, struct qeth_bridge_state_data, worker);
1632 /* We are only interested in the first entry - local port */
1633 struct qeth_sbp_port_entry *entry = &data->qports.entry[0];
1634 char env_locrem[32];
1635 char env_role[32];
1636 char env_state[32];
1637 char *env[] = {
1638 env_locrem,
1639 env_role,
1640 env_state,
1641 NULL
1642 };
1643
1644 /* Role should not change by itself, but if it did, */
1645 /* information from the hardware is authoritative. */
1646 mutex_lock(&data->card->conf_mutex);
1647 data->card->options.sbp.role = entry->role;
1648 mutex_unlock(&data->card->conf_mutex);
1649
1650 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange");
1651 snprintf(env_role, sizeof(env_role), "ROLE=%s",
1652 (entry->role == QETH_SBP_ROLE_NONE) ? "none" :
1653 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" :
1654 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" :
1655 "<INVALID>");
1656 snprintf(env_state, sizeof(env_state), "STATE=%s",
1657 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" :
1658 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" :
1659 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" :
1660 "<INVALID>");
1661 kobject_uevent_env(&data->card->gdev->dev.kobj,
1662 KOBJ_CHANGE, env);
1663 kfree(data);
1664}
1665
c044dc21
EC		 1666static void qeth_bridge_state_change(struct qeth_card *card,
1667 struct qeth_ipa_cmd *cmd)
b4d72c08
EC		 1668{
1669 struct qeth_sbp_state_change *qports =
1670 &cmd->data.sbp.data.state_change;
1671 struct qeth_bridge_state_data *data;
1672 int extrasize;
1673
1674 QETH_CARD_TEXT(card, 2, "brstchng");
1675 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
8a593148 1676 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length);
b4d72c08
EC		 1677 return;
1678 }
1679 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries;
1680 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize,
1681 GFP_ATOMIC);
1682 if (!data) {
1683 QETH_CARD_TEXT(card, 2, "BPSalloc");
1684 return;
1685 }
1686 INIT_WORK(&data->worker, qeth_bridge_state_change_worker);
1687 data->card = card;
1688 memcpy(&data->qports, qports,
1689 sizeof(struct qeth_sbp_state_change) + extrasize);
1690 queue_work(qeth_wq, &data->worker);
1691}
b4d72c08 1692
9f48b9db
EC		 1693struct qeth_bridge_host_data {
1694 struct work_struct worker;
1695 struct qeth_card *card;
1696 struct qeth_ipacmd_addr_change hostevs;
1697};
1698
1699static void qeth_bridge_host_event_worker(struct work_struct *work)
1700{
1701 struct qeth_bridge_host_data *data =
1702 container_of(work, struct qeth_bridge_host_data, worker);
1703 int i;
1704
1705 if (data->hostevs.lost_event_mask) {
1706 dev_info(&data->card->gdev->dev,
9c23f4da 1707"Address notification from the Bridge Port stopped %s (%s)\n",
9f48b9db
EC		 1708 data->card->dev->name,
1709 (data->hostevs.lost_event_mask == 0x01)
1710 ? "Overflow"
1711 : (data->hostevs.lost_event_mask == 0x02)
1712 ? "Bridge port state change"
1713 : "Unknown reason");
1714 mutex_lock(&data->card->conf_mutex);
1715 data->card->options.sbp.hostnotification = 0;
1716 mutex_unlock(&data->card->conf_mutex);
1717 qeth_bridge_emit_host_event(data->card, anev_abort,
1718 0, NULL, NULL);
1719 } else
1720 for (i = 0; i < data->hostevs.num_entries; i++) {
1721 struct qeth_ipacmd_addr_change_entry *entry =
1722 &data->hostevs.entry[i];
1723 qeth_bridge_emit_host_event(data->card,
1724 anev_reg_unreg,
1725 entry->change_code,
1726 &entry->token, &entry->addr_lnid);
1727 }
1728 kfree(data);
1729}
1730
c044dc21
EC		 1731static void qeth_bridge_host_event(struct qeth_card *card,
1732 struct qeth_ipa_cmd *cmd)
9f48b9db
EC		 1733{
1734 struct qeth_ipacmd_addr_change *hostevs =
1735 &cmd->data.addrchange;
1736 struct qeth_bridge_host_data *data;
1737 int extrasize;
1738
1739 QETH_CARD_TEXT(card, 2, "brhostev");
1740 if (cmd->hdr.return_code != 0x0000) {
1741 if (cmd->hdr.return_code == 0x0010) {
1742 if (hostevs->lost_event_mask == 0x00)
1743 hostevs->lost_event_mask = 0xff;
1744 } else {
1745 QETH_CARD_TEXT_(card, 2, "BPHe%04x",
1746 cmd->hdr.return_code);
1747 return;
1748 }
1749 }
1750 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) *
1751 hostevs->num_entries;
1752 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize,
1753 GFP_ATOMIC);
1754 if (!data) {
1755 QETH_CARD_TEXT(card, 2, "BPHalloc");
1756 return;
1757 }
1758 INIT_WORK(&data->worker, qeth_bridge_host_event_worker);
1759 data->card = card;
1760 memcpy(&data->hostevs, hostevs,
1761 sizeof(struct qeth_ipacmd_addr_change) + extrasize);
1762 queue_work(qeth_wq, &data->worker);
1763}
9f48b9db 1764
b4d72c08
EC		 1765/* SETBRIDGEPORT support; sending commands */
1766
1767struct _qeth_sbp_cbctl {
1768 u16 ipa_rc;
1769 u16 cmd_rc;
1770 union {
1771 u32 supported;
1772 struct {
1773 enum qeth_sbp_roles *role;
1774 enum qeth_sbp_states *state;
1775 } qports;
1776 } data;
1777};
1778
1779/**
1780 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes.
1781 * @card: qeth_card structure pointer, for debug messages.
1782 * @cbctl: state structure with hardware return codes.
1783 * @setcmd: IPA command code
1784 *
1785 * Returns negative errno-compatible error indication or 0 on success.
1786 */
1787static int qeth_bridgeport_makerc(struct qeth_card *card,
1788 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd)
1789{
1790 int rc;
9c23f4da 1791 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD);
b4d72c08 1792
9c23f4da
EC		 1793 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) ||
1794 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc)))
b4d72c08
EC		 1795 switch (cbctl->cmd_rc) {
1796 case 0x0000:
1797 rc = 0;
1798 break;
9c23f4da 1799 case 0x2B04:
b4d72c08 1800 case 0x0004:
ffb95251 1801 rc = -EOPNOTSUPP;
b4d72c08 1802 break;
9c23f4da 1803 case 0x2B0C:
b4d72c08
EC		 1804 case 0x000C: /* Not configured as bridge Port */
1805 rc = -ENODEV; /* maybe not the best code here? */
1806 dev_err(&card->gdev->dev,
9c23f4da 1807 "The device is not configured as a Bridge Port\n");
b4d72c08 1808 break;
1b05cf62
EC		 1809 case 0x2B10:
1810 case 0x0010: /* OS mismatch */
1811 rc = -EPERM;
1812 dev_err(&card->gdev->dev,
1813 "A Bridge Port is already configured by a different operating system\n");
1814 break;
9c23f4da 1815 case 0x2B14:
b4d72c08
EC		 1816 case 0x0014: /* Another device is Primary */
1817 switch (setcmd) {
1818 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
1819 rc = -EEXIST;
1820 dev_err(&card->gdev->dev,
9c23f4da 1821 "The LAN already has a primary Bridge Port\n");
b4d72c08
EC		 1822 break;
1823 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
1824 rc = -EBUSY;
1825 dev_err(&card->gdev->dev,
9c23f4da 1826 "The device is already a primary Bridge Port\n");
b4d72c08
EC		 1827 break;
1828 default:
1829 rc = -EIO;
1830 }
1831 break;
9c23f4da 1832 case 0x2B18:
b4d72c08
EC		 1833 case 0x0018: /* This device is currently Secondary */
1834 rc = -EBUSY;
1835 dev_err(&card->gdev->dev,
9c23f4da 1836 "The device is already a secondary Bridge Port\n");
b4d72c08 1837 break;
9c23f4da 1838 case 0x2B1C:
b4d72c08
EC		 1839 case 0x001C: /* Limit for Secondary devices reached */
1840 rc = -EEXIST;
1841 dev_err(&card->gdev->dev,
9c23f4da 1842 "The LAN cannot have more secondary Bridge Ports\n");
b4d72c08 1843 break;
9c23f4da 1844 case 0x2B24:
b4d72c08
EC		 1845 case 0x0024: /* This device is currently Primary */
1846 rc = -EBUSY;
1847 dev_err(&card->gdev->dev,
9c23f4da 1848 "The device is already a primary Bridge Port\n");
b4d72c08 1849 break;
9c23f4da 1850 case 0x2B20:
b4d72c08
EC		 1851 case 0x0020: /* Not authorized by zManager */
1852 rc = -EACCES;
1853 dev_err(&card->gdev->dev,
9c23f4da 1854 "The device is not authorized to be a Bridge Port\n");
b4d72c08
EC		 1855 break;
1856 default:
1857 rc = -EIO;
1858 }
9c23f4da
EC		 1859 else
1860 switch (cbctl->ipa_rc) {
1861 case IPA_RC_NOTSUPP:
ffb95251 1862 rc = -EOPNOTSUPP;
9c23f4da
EC		 1863 break;
1864 case IPA_RC_UNSUPPORTED_COMMAND:
ffb95251 1865 rc = -EOPNOTSUPP;
9c23f4da
EC		 1866 break;
1867 default:
1868 rc = -EIO;
1869 }
1870
b4d72c08
EC		 1871 if (rc) {
1872 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc);
1873 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc);
1874 }
1875 return rc;
1876}
1877
9c23f4da
EC		 1878static inline int ipa_cmd_sbp(struct qeth_card *card)
1879{
1880 return (card->info.type == QETH_CARD_TYPE_IQD) ?
1881 IPA_CMD_SETBRIDGEPORT_IQD :
1882 IPA_CMD_SETBRIDGEPORT_OSA;
1883}
1884
b4d72c08
EC		 1885static int qeth_bridgeport_query_support_cb(struct qeth_card *card,
1886 struct qeth_reply *reply, unsigned long data)
1887{
1888 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1889 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1890 QETH_CARD_TEXT(card, 2, "brqsupcb");
1891 cbctl->ipa_rc = cmd->hdr.return_code;
1892 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1893 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) {
1894 cbctl->data.supported =
1895 cmd->data.sbp.data.query_cmds_supp.supported_cmds;
1896 } else {
1897 cbctl->data.supported = 0;
1898 }
1899 return 0;
1900}
1901
1902/**
1903 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions.
1904 * @card: qeth_card structure pointer.
1905 *
1906 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card
1907 * strucutre: card->options.sbp.supported_funcs.
1908 */
c044dc21 1909static void qeth_bridgeport_query_support(struct qeth_card *card)
b4d72c08
EC		 1910{
1911 struct qeth_cmd_buffer *iob;
1912 struct qeth_ipa_cmd *cmd;
1913 struct _qeth_sbp_cbctl cbctl;
1914
1915 QETH_CARD_TEXT(card, 2, "brqsuppo");
9c23f4da 1916 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1917 if (!iob)
1918 return;
b4d72c08
EC		 1919 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1920 cmd->data.sbp.hdr.cmdlength =
1921 sizeof(struct qeth_ipacmd_sbp_hdr) +
1922 sizeof(struct qeth_sbp_query_cmds_supp);
1923 cmd->data.sbp.hdr.command_code =
1924 IPA_SBP_QUERY_COMMANDS_SUPPORTED;
1925 cmd->data.sbp.hdr.used_total = 1;
1926 cmd->data.sbp.hdr.seq_no = 1;
1927 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb,
1928 (void *)&cbctl) ||
1929 qeth_bridgeport_makerc(card, &cbctl,
1930 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) {
1931 /* non-zero makerc signifies failure, and produce messages */
1932 card->options.sbp.role = QETH_SBP_ROLE_NONE;
1933 return;
1934 }
1935 card->options.sbp.supported_funcs = cbctl.data.supported;
1936}
b4d72c08
EC		 1937
1938static int qeth_bridgeport_query_ports_cb(struct qeth_card *card,
1939 struct qeth_reply *reply, unsigned long data)
1940{
1941 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
1942 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports;
1943 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
1944
1945 QETH_CARD_TEXT(card, 2, "brqprtcb");
1946 cbctl->ipa_rc = cmd->hdr.return_code;
1947 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
1948 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0))
1949 return 0;
1950 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) {
1951 cbctl->cmd_rc = 0xffff;
1952 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length);
1953 return 0;
1954 }
1955 /* first entry contains the state of the local port */
1956 if (qports->num_entries > 0) {
1957 if (cbctl->data.qports.role)
1958 *cbctl->data.qports.role = qports->entry[0].role;
1959 if (cbctl->data.qports.state)
1960 *cbctl->data.qports.state = qports->entry[0].state;
1961 }
1962 return 0;
1963}
1964
1965/**
1966 * qeth_bridgeport_query_ports() - query local bridgeport status.
1967 * @card: qeth_card structure pointer.
1968 * @role: Role of the port: 0-none, 1-primary, 2-secondary.
1969 * @state: State of the port: 0-inactive, 1-standby, 2-active.
1970 *
1971 * Returns negative errno-compatible error indication or 0 on success.
1972 *
1973 * 'role' and 'state' are not updated in case of hardware operation failure.
1974 */
1975int qeth_bridgeport_query_ports(struct qeth_card *card,
1976 enum qeth_sbp_roles *role, enum qeth_sbp_states *state)
1977{
1978 int rc = 0;
1979 struct qeth_cmd_buffer *iob;
1980 struct qeth_ipa_cmd *cmd;
1981 struct _qeth_sbp_cbctl cbctl = {
1982 .data = {
1983 .qports = {
1984 .role = role,
1985 .state = state,
1986 },
1987 },
1988 };
1989
1990 QETH_CARD_TEXT(card, 2, "brqports");
1991 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS))
1992 return -EOPNOTSUPP;
9c23f4da 1993 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 1994 if (!iob)
1995 return -ENOMEM;
b4d72c08
EC		 1996 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1997 cmd->data.sbp.hdr.cmdlength =
1998 sizeof(struct qeth_ipacmd_sbp_hdr);
1999 cmd->data.sbp.hdr.command_code =
2000 IPA_SBP_QUERY_BRIDGE_PORTS;
2001 cmd->data.sbp.hdr.used_total = 1;
2002 cmd->data.sbp.hdr.seq_no = 1;
2003 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb,
2004 (void *)&cbctl);
c88394e7 2005 if (rc < 0)
b4d72c08 2006 return rc;
c88394e7 2007 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS);
b4d72c08
EC		 2008}
2009EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports);
2010
2011static int qeth_bridgeport_set_cb(struct qeth_card *card,
2012 struct qeth_reply *reply, unsigned long data)
2013{
2014 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
2015 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param;
2016 QETH_CARD_TEXT(card, 2, "brsetrcb");
2017 cbctl->ipa_rc = cmd->hdr.return_code;
2018 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code;
2019 return 0;
2020}
2021
2022/**
2023 * qeth_bridgeport_setrole() - Assign primary role to the port.
2024 * @card: qeth_card structure pointer.
2025 * @role: Role to assign.
2026 *
2027 * Returns negative errno-compatible error indication or 0 on success.
2028 */
2029int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role)
2030{
2031 int rc = 0;
2032 int cmdlength;
2033 struct qeth_cmd_buffer *iob;
2034 struct qeth_ipa_cmd *cmd;
2035 struct _qeth_sbp_cbctl cbctl;
2036 enum qeth_ipa_sbp_cmd setcmd;
2037
2038 QETH_CARD_TEXT(card, 2, "brsetrol");
2039 switch (role) {
2040 case QETH_SBP_ROLE_NONE:
2041 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE;
2042 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2043 sizeof(struct qeth_sbp_reset_role);
2044 break;
2045 case QETH_SBP_ROLE_PRIMARY:
2046 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT;
2047 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2048 sizeof(struct qeth_sbp_set_primary);
2049 break;
2050 case QETH_SBP_ROLE_SECONDARY:
2051 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT;
2052 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) +
2053 sizeof(struct qeth_sbp_set_secondary);
2054 break;
2055 default:
2056 return -EINVAL;
2057 }
2058 if (!(card->options.sbp.supported_funcs & setcmd))
2059 return -EOPNOTSUPP;
9c23f4da 2060 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0);
1aec42bc
TR		 2061 if (!iob)
2062 return -ENOMEM;
b4d72c08
EC		 2063 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2064 cmd->data.sbp.hdr.cmdlength = cmdlength;
2065 cmd->data.sbp.hdr.command_code = setcmd;
2066 cmd->data.sbp.hdr.used_total = 1;
2067 cmd->data.sbp.hdr.seq_no = 1;
2068 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb,
2069 (void *)&cbctl);
c88394e7 2070 if (rc < 0)
b4d72c08 2071 return rc;
c88394e7 2072 return qeth_bridgeport_makerc(card, &cbctl, setcmd);
b4d72c08
EC		 2073}
2074
9f48b9db
EC		 2075/**
2076 * qeth_anset_makerc() - derive "traditional" error from hardware codes.
2077 * @card: qeth_card structure pointer, for debug messages.
2078 *
2079 * Returns negative errno-compatible error indication or 0 on success.
2080 */
2081static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response)
2082{
2083 int rc;
2084
2085 if (pnso_rc == 0)
2086 switch (response) {
2087 case 0x0001:
2088 rc = 0;
2089 break;
2090 case 0x0004:
2091 case 0x0100:
2092 case 0x0106:
ffb95251 2093 rc = -EOPNOTSUPP;
9f48b9db
EC		 2094 dev_err(&card->gdev->dev,
2095 "Setting address notification failed\n");
2096 break;
2097 case 0x0107:
2098 rc = -EAGAIN;
2099 break;
2100 default:
2101 rc = -EIO;
2102 }
2103 else
2104 rc = -EIO;
2105
2106 if (rc) {
2107 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc);
2108 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response);
2109 }
2110 return rc;
2111}
2112
2113static void qeth_bridgeport_an_set_cb(void *priv,
2114 enum qdio_brinfo_entry_type type, void *entry)
2115{
2116 struct qeth_card *card = (struct qeth_card *)priv;
2117 struct qdio_brinfo_entry_l2 *l2entry;
2118 u8 code;
2119
2120 if (type != l2_addr_lnid) {
2121 WARN_ON_ONCE(1);
2122 return;
2123 }
2124
2125 l2entry = (struct qdio_brinfo_entry_l2 *)entry;
2126 code = IPA_ADDR_CHANGE_CODE_MACADDR;
2127 if (l2entry->addr_lnid.lnid)
2128 code |= IPA_ADDR_CHANGE_CODE_VLANID;
2129 qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
2130 (struct net_if_token *)&l2entry->nit,
2131 (struct mac_addr_lnid *)&l2entry->addr_lnid);
2132}
2133
2134/**
2135 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification
2136 * @card: qeth_card structure pointer.
2137 * @enable: 0 - disable, non-zero - enable notifications
2138 *
2139 * Returns negative errno-compatible error indication or 0 on success.
2140 *
2141 * On enable, emits a series of address notifications udev events for all
2142 * currently registered hosts.
2143 */
2144int qeth_bridgeport_an_set(struct qeth_card *card, int enable)
2145{
2146 int rc;
2147 u16 response;
2148 struct ccw_device *ddev;
2149 struct subchannel_id schid;
2150
2151 if (!card)
2152 return -EINVAL;
2153 if (!card->options.sbp.supported_funcs)
2154 return -EOPNOTSUPP;
2155 ddev = CARD_DDEV(card);
2156 ccw_device_get_schid(ddev, &schid);
2157
2158 if (enable) {
2159 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL);
2160 rc = qdio_pnso_brinfo(schid, 1, &response,
2161 qeth_bridgeport_an_set_cb, card);
2162 } else
2163 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL);
2164 return qeth_anset_makerc(card, rc, response);
2165}
2166EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set);
2167
4a71df50
FB		 2168module_init(qeth_l2_init);
2169module_exit(qeth_l2_exit);
2170MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
2171MODULE_DESCRIPTION("qeth layer 2 discipline");
2172MODULE_LICENSE("GPL");
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