Commit | Line | Data |
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4a71df50 FB |
1 | /* |
2 | * drivers/s390/net/qeth_l2_main.c | |
3 | * | |
bbcfcdc8 | 4 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
6 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
7 | * Thomas Spatzier <tspat@de.ibm.com>, | |
8 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
9 | */ | |
10 | ||
74eacdb9 FB |
11 | #define KMSG_COMPONENT "qeth" |
12 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
13 | ||
4a71df50 FB |
14 | #include <linux/module.h> |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/etherdevice.h> | |
20 | #include <linux/mii.h> | |
21 | #include <linux/ip.h> | |
ccffad25 | 22 | #include <linux/list.h> |
4a71df50 | 23 | |
4a71df50 | 24 | #include "qeth_core.h" |
4a71df50 | 25 | |
4a71df50 FB |
26 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
27 | static int qeth_l2_stop(struct net_device *); | |
28 | static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); | |
29 | static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, | |
30 | enum qeth_ipa_cmds, | |
31 | int (*reply_cb) (struct qeth_card *, | |
32 | struct qeth_reply*, | |
33 | unsigned long)); | |
34 | static void qeth_l2_set_multicast_list(struct net_device *); | |
35 | static int qeth_l2_recover(void *); | |
36 | ||
37 | static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
38 | { | |
509e2562 | 39 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
40 | struct mii_ioctl_data *mii_data; |
41 | int rc = 0; | |
42 | ||
43 | if (!card) | |
44 | return -ENODEV; | |
45 | ||
46 | if ((card->state != CARD_STATE_UP) && | |
47 | (card->state != CARD_STATE_SOFTSETUP)) | |
48 | return -ENODEV; | |
49 | ||
50 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
51 | return -EPERM; | |
52 | ||
53 | switch (cmd) { | |
54 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
55 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
56 | break; | |
57 | case SIOC_QETH_GET_CARD_TYPE: | |
58 | if ((card->info.type == QETH_CARD_TYPE_OSAE) && | |
59 | !card->info.guestlan) | |
60 | return 1; | |
61 | return 0; | |
62 | break; | |
63 | case SIOCGMIIPHY: | |
64 | mii_data = if_mii(rq); | |
65 | mii_data->phy_id = 0; | |
66 | break; | |
67 | case SIOCGMIIREG: | |
68 | mii_data = if_mii(rq); | |
69 | if (mii_data->phy_id != 0) | |
70 | rc = -EINVAL; | |
71 | else | |
72 | mii_data->val_out = qeth_mdio_read(dev, | |
73 | mii_data->phy_id, mii_data->reg_num); | |
74 | break; | |
75 | default: | |
76 | rc = -EOPNOTSUPP; | |
77 | } | |
78 | if (rc) | |
d11ba0c4 | 79 | QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); |
4a71df50 FB |
80 | return rc; |
81 | } | |
82 | ||
83 | static int qeth_l2_verify_dev(struct net_device *dev) | |
84 | { | |
85 | struct qeth_card *card; | |
86 | unsigned long flags; | |
87 | int rc = 0; | |
88 | ||
89 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
90 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
91 | if (card->dev == dev) { | |
92 | rc = QETH_REAL_CARD; | |
93 | break; | |
94 | } | |
95 | } | |
96 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
97 | ||
98 | return rc; | |
99 | } | |
100 | ||
101 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) | |
102 | { | |
103 | struct qeth_card *card; | |
104 | struct net_device *ndev; | |
f06f6f32 | 105 | __u16 temp_dev_no; |
4a71df50 | 106 | unsigned long flags; |
f06f6f32 | 107 | struct ccw_dev_id read_devid; |
4a71df50 FB |
108 | |
109 | ndev = NULL; | |
110 | memcpy(&temp_dev_no, read_dev_no, 2); | |
111 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
112 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
113 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
114 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
115 | ndev = card->dev; |
116 | break; | |
117 | } | |
118 | } | |
119 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
120 | return ndev; | |
121 | } | |
122 | ||
123 | static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, | |
124 | struct qeth_reply *reply, | |
125 | unsigned long data) | |
126 | { | |
127 | struct qeth_ipa_cmd *cmd; | |
128 | __u8 *mac; | |
129 | ||
d11ba0c4 | 130 | QETH_DBF_TEXT(TRACE, 2, "L2Sgmacb"); |
4a71df50 FB |
131 | cmd = (struct qeth_ipa_cmd *) data; |
132 | mac = &cmd->data.setdelmac.mac[0]; | |
133 | /* MAC already registered, needed in couple/uncouple case */ | |
0666eb06 | 134 | if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { |
7c510e4b JB |
135 | QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
136 | mac, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
137 | cmd->hdr.return_code = 0; |
138 | } | |
139 | if (cmd->hdr.return_code) | |
7c510e4b JB |
140 | QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
141 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
142 | return 0; |
143 | } | |
144 | ||
145 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
146 | { | |
d11ba0c4 | 147 | QETH_DBF_TEXT(TRACE, 2, "L2Sgmac"); |
4a71df50 FB |
148 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
149 | qeth_l2_send_setgroupmac_cb); | |
150 | } | |
151 | ||
152 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
153 | struct qeth_reply *reply, | |
154 | unsigned long data) | |
155 | { | |
156 | struct qeth_ipa_cmd *cmd; | |
157 | __u8 *mac; | |
158 | ||
d11ba0c4 | 159 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmacb"); |
4a71df50 FB |
160 | cmd = (struct qeth_ipa_cmd *) data; |
161 | mac = &cmd->data.setdelmac.mac[0]; | |
162 | if (cmd->hdr.return_code) | |
7c510e4b JB |
163 | QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
164 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
165 | return 0; |
166 | } | |
167 | ||
168 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
169 | { | |
d11ba0c4 | 170 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmac"); |
4a71df50 FB |
171 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
172 | qeth_l2_send_delgroupmac_cb); | |
173 | } | |
174 | ||
7db2266a | 175 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
4a71df50 FB |
176 | { |
177 | struct qeth_mc_mac *mc; | |
7db2266a | 178 | int rc; |
4a71df50 FB |
179 | |
180 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
181 | ||
14cc21b6 | 182 | if (!mc) |
4a71df50 | 183 | return; |
4a71df50 FB |
184 | |
185 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
186 | mc->mc_addrlen = OSA_ADDR_LEN; | |
7db2266a FB |
187 | mc->is_vmac = vmac; |
188 | ||
189 | if (vmac) { | |
190 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, | |
191 | NULL); | |
192 | } else { | |
193 | rc = qeth_l2_send_setgroupmac(card, mac); | |
194 | } | |
4a71df50 | 195 | |
7db2266a | 196 | if (!rc) |
4a71df50 FB |
197 | list_add_tail(&mc->list, &card->mc_list); |
198 | else | |
199 | kfree(mc); | |
200 | } | |
201 | ||
202 | static void qeth_l2_del_all_mc(struct qeth_card *card) | |
203 | { | |
204 | struct qeth_mc_mac *mc, *tmp; | |
205 | ||
206 | spin_lock_bh(&card->mclock); | |
207 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
7db2266a FB |
208 | if (mc->is_vmac) |
209 | qeth_l2_send_setdelmac(card, mc->mc_addr, | |
210 | IPA_CMD_DELVMAC, NULL); | |
211 | else | |
212 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
4a71df50 FB |
213 | list_del(&mc->list); |
214 | kfree(mc); | |
215 | } | |
216 | spin_unlock_bh(&card->mclock); | |
217 | } | |
218 | ||
ce73e10e KDW |
219 | static inline int qeth_l2_get_cast_type(struct qeth_card *card, |
220 | struct sk_buff *skb) | |
4a71df50 | 221 | { |
ce73e10e KDW |
222 | if (card->info.type == QETH_CARD_TYPE_OSN) |
223 | return RTN_UNSPEC; | |
224 | if (is_broadcast_ether_addr(skb->data)) | |
225 | return RTN_BROADCAST; | |
226 | if (is_multicast_ether_addr(skb->data)) | |
227 | return RTN_MULTICAST; | |
228 | return RTN_UNSPEC; | |
4a71df50 FB |
229 | } |
230 | ||
231 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
232 | struct sk_buff *skb, int ipv, int cast_type) | |
233 | { | |
683d718a | 234 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
235 | |
236 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
237 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
238 | ||
239 | /* set byte byte 3 to casting flags */ | |
240 | if (cast_type == RTN_MULTICAST) | |
241 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
242 | else if (cast_type == RTN_BROADCAST) | |
243 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
244 | else | |
ce73e10e | 245 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
4a71df50 FB |
246 | |
247 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
248 | /* VSWITCH relies on the VLAN | |
249 | * information to be present in | |
250 | * the QDIO header */ | |
251 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
252 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
253 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
254 | } | |
255 | } | |
256 | ||
257 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
258 | struct qeth_reply *reply, unsigned long data) | |
259 | { | |
260 | struct qeth_ipa_cmd *cmd; | |
261 | ||
d11ba0c4 | 262 | QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); |
4a71df50 FB |
263 | cmd = (struct qeth_ipa_cmd *) data; |
264 | if (cmd->hdr.return_code) { | |
14cc21b6 | 265 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
266 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
267 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
d11ba0c4 PT |
268 | QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); |
269 | QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); | |
270 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
271 | } |
272 | return 0; | |
273 | } | |
274 | ||
275 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
276 | enum qeth_ipa_cmds ipacmd) | |
277 | { | |
278 | struct qeth_ipa_cmd *cmd; | |
279 | struct qeth_cmd_buffer *iob; | |
280 | ||
d11ba0c4 | 281 | QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
282 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
283 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
284 | cmd->data.setdelvlan.vlan_id = i; | |
285 | return qeth_send_ipa_cmd(card, iob, | |
286 | qeth_l2_send_setdelvlan_cb, NULL); | |
287 | } | |
288 | ||
289 | static void qeth_l2_process_vlans(struct qeth_card *card, int clear) | |
290 | { | |
291 | struct qeth_vlan_vid *id; | |
d11ba0c4 | 292 | QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); |
4a71df50 FB |
293 | spin_lock_bh(&card->vlanlock); |
294 | list_for_each_entry(id, &card->vid_list, list) { | |
295 | if (clear) | |
296 | qeth_l2_send_setdelvlan(card, id->vid, | |
297 | IPA_CMD_DELVLAN); | |
298 | else | |
299 | qeth_l2_send_setdelvlan(card, id->vid, | |
300 | IPA_CMD_SETVLAN); | |
301 | } | |
302 | spin_unlock_bh(&card->vlanlock); | |
303 | } | |
304 | ||
305 | static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
306 | { | |
509e2562 | 307 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
308 | struct qeth_vlan_vid *id; |
309 | ||
d11ba0c4 | 310 | QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); |
8e98ac48 UB |
311 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
312 | QETH_DBF_TEXT(TRACE, 3, "aidREC"); | |
313 | return; | |
314 | } | |
4a71df50 FB |
315 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
316 | if (id) { | |
317 | id->vid = vid; | |
318 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
319 | spin_lock_bh(&card->vlanlock); | |
320 | list_add_tail(&id->list, &card->vid_list); | |
321 | spin_unlock_bh(&card->vlanlock); | |
4a71df50 FB |
322 | } |
323 | } | |
324 | ||
325 | static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
326 | { | |
327 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 328 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 329 | |
d11ba0c4 | 330 | QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); |
8e98ac48 UB |
331 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
332 | QETH_DBF_TEXT(TRACE, 3, "kidREC"); | |
333 | return; | |
334 | } | |
4a71df50 FB |
335 | spin_lock_bh(&card->vlanlock); |
336 | list_for_each_entry(id, &card->vid_list, list) { | |
337 | if (id->vid == vid) { | |
338 | list_del(&id->list); | |
339 | tmpid = id; | |
340 | break; | |
341 | } | |
342 | } | |
343 | spin_unlock_bh(&card->vlanlock); | |
344 | if (tmpid) { | |
345 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
346 | kfree(tmpid); | |
347 | } | |
348 | qeth_l2_set_multicast_list(card->dev); | |
349 | } | |
350 | ||
351 | static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) | |
352 | { | |
353 | int rc = 0; | |
354 | ||
d11ba0c4 PT |
355 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
356 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
357 | |
358 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
359 | if (card->read.state == CH_STATE_UP && |
360 | card->write.state == CH_STATE_UP && | |
361 | (card->state == CARD_STATE_UP)) { | |
362 | if (recovery_mode && | |
363 | card->info.type != QETH_CARD_TYPE_OSN) { | |
364 | qeth_l2_stop(card->dev); | |
365 | } else { | |
366 | rtnl_lock(); | |
367 | dev_close(card->dev); | |
368 | rtnl_unlock(); | |
369 | } | |
932e1583 KDW |
370 | if (!card->use_hard_stop || |
371 | recovery_mode) { | |
4a71df50 FB |
372 | __u8 *mac = &card->dev->dev_addr[0]; |
373 | rc = qeth_l2_send_delmac(card, mac); | |
d11ba0c4 | 374 | QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); |
4a71df50 FB |
375 | } |
376 | card->state = CARD_STATE_SOFTSETUP; | |
377 | } | |
378 | if (card->state == CARD_STATE_SOFTSETUP) { | |
379 | qeth_l2_process_vlans(card, 1); | |
932e1583 KDW |
380 | if (!card->use_hard_stop || |
381 | recovery_mode) | |
28a7e4c9 | 382 | qeth_l2_del_all_mc(card); |
4a71df50 FB |
383 | qeth_clear_ipacmd_list(card); |
384 | card->state = CARD_STATE_HARDSETUP; | |
385 | } | |
386 | if (card->state == CARD_STATE_HARDSETUP) { | |
387 | qeth_qdio_clear_card(card, 0); | |
388 | qeth_clear_qdio_buffers(card); | |
389 | qeth_clear_working_pool_list(card); | |
390 | card->state = CARD_STATE_DOWN; | |
391 | } | |
392 | if (card->state == CARD_STATE_DOWN) { | |
393 | qeth_clear_cmd_buffers(&card->read); | |
394 | qeth_clear_cmd_buffers(&card->write); | |
395 | } | |
396 | card->use_hard_stop = 0; | |
397 | return rc; | |
398 | } | |
399 | ||
400 | static void qeth_l2_process_inbound_buffer(struct qeth_card *card, | |
401 | struct qeth_qdio_buffer *buf, int index) | |
402 | { | |
403 | struct qdio_buffer_element *element; | |
404 | struct sk_buff *skb; | |
405 | struct qeth_hdr *hdr; | |
406 | int offset; | |
407 | unsigned int len; | |
408 | ||
409 | /* get first element of current buffer */ | |
410 | element = (struct qdio_buffer_element *)&buf->buffer->element[0]; | |
411 | offset = 0; | |
412 | if (card->options.performance_stats) | |
413 | card->perf_stats.bufs_rec++; | |
414 | while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, | |
415 | &offset, &hdr))) { | |
416 | skb->dev = card->dev; | |
417 | /* is device UP ? */ | |
418 | if (!(card->dev->flags & IFF_UP)) { | |
419 | dev_kfree_skb_any(skb); | |
420 | continue; | |
421 | } | |
422 | ||
423 | switch (hdr->hdr.l2.id) { | |
424 | case QETH_HEADER_TYPE_LAYER2: | |
425 | skb->pkt_type = PACKET_HOST; | |
426 | skb->protocol = eth_type_trans(skb, skb->dev); | |
427 | if (card->options.checksum_type == NO_CHECKSUMMING) | |
428 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
429 | else | |
430 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
431 | if (skb->protocol == htons(ETH_P_802_2)) |
432 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 FB |
433 | len = skb->len; |
434 | netif_rx(skb); | |
435 | break; | |
436 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
437 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
438 | skb_push(skb, sizeof(struct qeth_hdr)); | |
439 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 440 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
441 | len = skb->len; |
442 | card->osn_info.data_cb(skb); | |
443 | break; | |
444 | } | |
445 | /* else unknown */ | |
4a71df50 FB |
446 | default: |
447 | dev_kfree_skb_any(skb); | |
d11ba0c4 PT |
448 | QETH_DBF_TEXT(TRACE, 3, "inbunkno"); |
449 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); | |
4a71df50 FB |
450 | continue; |
451 | } | |
4a71df50 FB |
452 | card->stats.rx_packets++; |
453 | card->stats.rx_bytes += len; | |
454 | } | |
455 | } | |
456 | ||
457 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
458 | enum qeth_ipa_cmds ipacmd, | |
459 | int (*reply_cb) (struct qeth_card *, | |
460 | struct qeth_reply*, | |
461 | unsigned long)) | |
462 | { | |
463 | struct qeth_ipa_cmd *cmd; | |
464 | struct qeth_cmd_buffer *iob; | |
465 | ||
d11ba0c4 | 466 | QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); |
4a71df50 FB |
467 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
468 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
469 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
470 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
471 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
472 | } | |
473 | ||
474 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
475 | struct qeth_reply *reply, | |
476 | unsigned long data) | |
477 | { | |
478 | struct qeth_ipa_cmd *cmd; | |
479 | ||
d11ba0c4 | 480 | QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); |
4a71df50 FB |
481 | cmd = (struct qeth_ipa_cmd *) data; |
482 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 483 | QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 | 484 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
0666eb06 UB |
485 | switch (cmd->hdr.return_code) { |
486 | case IPA_RC_L2_DUP_MAC: | |
487 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
488 | dev_warn(&card->gdev->dev, | |
d998ab0b HS |
489 | "MAC address %pM already exists\n", |
490 | card->dev->dev_addr); | |
0666eb06 UB |
491 | break; |
492 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
493 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
494 | dev_warn(&card->gdev->dev, | |
d998ab0b HS |
495 | "MAC address %pM is not authorized\n", |
496 | card->dev->dev_addr); | |
0666eb06 UB |
497 | break; |
498 | default: | |
499 | break; | |
500 | } | |
4a71df50 FB |
501 | cmd->hdr.return_code = -EIO; |
502 | } else { | |
503 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
504 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
505 | OSA_ADDR_LEN); | |
74eacdb9 | 506 | dev_info(&card->gdev->dev, |
d998ab0b HS |
507 | "MAC address %pM successfully registered on device %s\n", |
508 | card->dev->dev_addr, card->dev->name); | |
4a71df50 FB |
509 | } |
510 | return 0; | |
511 | } | |
512 | ||
513 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
514 | { | |
d11ba0c4 | 515 | QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); |
4a71df50 FB |
516 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
517 | qeth_l2_send_setmac_cb); | |
518 | } | |
519 | ||
520 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
521 | struct qeth_reply *reply, | |
522 | unsigned long data) | |
523 | { | |
524 | struct qeth_ipa_cmd *cmd; | |
525 | ||
d11ba0c4 | 526 | QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); |
4a71df50 FB |
527 | cmd = (struct qeth_ipa_cmd *) data; |
528 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 529 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
530 | cmd->hdr.return_code = -EIO; |
531 | return 0; | |
532 | } | |
533 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
538 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
539 | { | |
d11ba0c4 | 540 | QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); |
4a71df50 FB |
541 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
542 | return 0; | |
543 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
544 | qeth_l2_send_delmac_cb); | |
545 | } | |
546 | ||
547 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
548 | { | |
549 | int rc = 0; | |
550 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
551 | ||
d11ba0c4 PT |
552 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
553 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
554 | |
555 | rc = qeth_query_setadapterparms(card); | |
556 | if (rc) { | |
14cc21b6 FB |
557 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
558 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
559 | } |
560 | ||
f1d58672 UB |
561 | if ((card->info.type == QETH_CARD_TYPE_IQD) || |
562 | (card->info.guestlan)) { | |
4a71df50 FB |
563 | rc = qeth_setadpparms_change_macaddr(card); |
564 | if (rc) { | |
14cc21b6 FB |
565 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
566 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 567 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
568 | return rc; |
569 | } | |
d11ba0c4 | 570 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
571 | } else { |
572 | random_ether_addr(card->dev->dev_addr); | |
573 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
574 | } | |
575 | return 0; | |
576 | } | |
577 | ||
578 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
579 | { | |
580 | struct sockaddr *addr = p; | |
509e2562 | 581 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
582 | int rc = 0; |
583 | ||
d11ba0c4 | 584 | QETH_DBF_TEXT(TRACE, 3, "setmac"); |
4a71df50 FB |
585 | |
586 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
d11ba0c4 | 587 | QETH_DBF_TEXT(TRACE, 3, "setmcINV"); |
4a71df50 FB |
588 | return -EOPNOTSUPP; |
589 | } | |
590 | ||
591 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
d11ba0c4 | 592 | QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); |
4a71df50 FB |
593 | return -EOPNOTSUPP; |
594 | } | |
d11ba0c4 PT |
595 | QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); |
596 | QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); | |
8e98ac48 UB |
597 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
598 | QETH_DBF_TEXT(TRACE, 3, "setmcREC"); | |
599 | return -ERESTARTSYS; | |
600 | } | |
4a71df50 FB |
601 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
602 | if (!rc) | |
603 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
604 | return rc; | |
605 | } | |
606 | ||
607 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
608 | { | |
509e2562 | 609 | struct qeth_card *card = dev->ml_priv; |
7db2266a | 610 | struct dev_addr_list *dm; |
ccffad25 | 611 | struct netdev_hw_addr *ha; |
4a71df50 FB |
612 | |
613 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
614 | return ; | |
615 | ||
d11ba0c4 | 616 | QETH_DBF_TEXT(TRACE, 3, "setmulti"); |
8e98ac48 UB |
617 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
618 | (card->state != CARD_STATE_UP)) | |
619 | return; | |
4a71df50 FB |
620 | qeth_l2_del_all_mc(card); |
621 | spin_lock_bh(&card->mclock); | |
622 | for (dm = dev->mc_list; dm; dm = dm->next) | |
7db2266a FB |
623 | qeth_l2_add_mc(card, dm->da_addr, 0); |
624 | ||
32e7bfc4 | 625 | netdev_for_each_uc_addr(ha, dev) |
ccffad25 | 626 | qeth_l2_add_mc(card, ha->addr, 1); |
7db2266a | 627 | |
4a71df50 FB |
628 | spin_unlock_bh(&card->mclock); |
629 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
630 | return; | |
631 | qeth_setadp_promisc_mode(card); | |
632 | } | |
633 | ||
634 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
635 | { | |
636 | int rc; | |
637 | struct qeth_hdr *hdr = NULL; | |
638 | int elements = 0; | |
509e2562 | 639 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
640 | struct sk_buff *new_skb = skb; |
641 | int ipv = qeth_get_ip_version(skb); | |
ce73e10e | 642 | int cast_type = qeth_l2_get_cast_type(card, skb); |
4a71df50 FB |
643 | struct qeth_qdio_out_q *queue = card->qdio.out_qs |
644 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
645 | int tx_bytes = skb->len; | |
683d718a FB |
646 | int data_offset = -1; |
647 | int elements_needed = 0; | |
648 | int hd_len = 0; | |
4a71df50 | 649 | |
4a71df50 FB |
650 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
651 | card->stats.tx_carrier_errors++; | |
652 | goto tx_drop; | |
653 | } | |
654 | ||
655 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
656 | (skb->protocol == htons(ETH_P_IPV6))) | |
657 | goto tx_drop; | |
658 | ||
659 | if (card->options.performance_stats) { | |
660 | card->perf_stats.outbound_cnt++; | |
661 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
662 | } | |
663 | netif_stop_queue(dev); | |
664 | ||
4a71df50 FB |
665 | if (card->info.type == QETH_CARD_TYPE_OSN) |
666 | hdr = (struct qeth_hdr *)skb->data; | |
667 | else { | |
64ef8957 | 668 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
669 | new_skb = skb; |
670 | data_offset = ETH_HLEN; | |
671 | hd_len = ETH_HLEN; | |
672 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
673 | GFP_ATOMIC); | |
674 | if (!hdr) | |
675 | goto tx_drop; | |
676 | elements_needed++; | |
677 | skb_reset_mac_header(new_skb); | |
678 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
679 | hdr->hdr.l2.pkt_length = new_skb->len; | |
680 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
681 | skb_mac_header(new_skb), ETH_HLEN); | |
682 | } else { | |
683 | /* create a clone with writeable headroom */ | |
684 | new_skb = skb_realloc_headroom(skb, | |
685 | sizeof(struct qeth_hdr)); | |
686 | if (!new_skb) | |
687 | goto tx_drop; | |
688 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 689 | sizeof(struct qeth_hdr)); |
683d718a FB |
690 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
691 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
692 | } | |
4a71df50 FB |
693 | } |
694 | ||
64ef8957 | 695 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 696 | elements_needed); |
64ef8957 FB |
697 | if (!elements) { |
698 | if (data_offset >= 0) | |
699 | kmem_cache_free(qeth_core_header_cache, hdr); | |
700 | goto tx_drop; | |
f61a0d05 | 701 | } |
4a71df50 FB |
702 | |
703 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
704 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, | |
64ef8957 | 705 | elements); |
4a71df50 FB |
706 | else |
707 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, | |
64ef8957 | 708 | elements, data_offset, hd_len); |
4a71df50 FB |
709 | if (!rc) { |
710 | card->stats.tx_packets++; | |
711 | card->stats.tx_bytes += tx_bytes; | |
712 | if (new_skb != skb) | |
713 | dev_kfree_skb_any(skb); | |
ec634fe3 | 714 | rc = NETDEV_TX_OK; |
4a71df50 | 715 | } else { |
683d718a FB |
716 | if (data_offset >= 0) |
717 | kmem_cache_free(qeth_core_header_cache, hdr); | |
718 | ||
4a71df50 FB |
719 | if (rc == -EBUSY) { |
720 | if (new_skb != skb) | |
721 | dev_kfree_skb_any(new_skb); | |
722 | return NETDEV_TX_BUSY; | |
723 | } else | |
724 | goto tx_drop; | |
725 | } | |
726 | ||
727 | netif_wake_queue(dev); | |
728 | if (card->options.performance_stats) | |
729 | card->perf_stats.outbound_time += qeth_get_micros() - | |
730 | card->perf_stats.outbound_start_time; | |
731 | return rc; | |
732 | ||
733 | tx_drop: | |
734 | card->stats.tx_dropped++; | |
735 | card->stats.tx_errors++; | |
736 | if ((new_skb != skb) && new_skb) | |
737 | dev_kfree_skb_any(new_skb); | |
738 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 739 | netif_wake_queue(dev); |
4a71df50 FB |
740 | return NETDEV_TX_OK; |
741 | } | |
742 | ||
743 | static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, | |
779e6e1c | 744 | unsigned int qdio_err, unsigned int queue, |
4a71df50 FB |
745 | int first_element, int count, unsigned long card_ptr) |
746 | { | |
747 | struct net_device *net_dev; | |
748 | struct qeth_card *card; | |
749 | struct qeth_qdio_buffer *buffer; | |
750 | int index; | |
751 | int i; | |
752 | ||
4a71df50 FB |
753 | card = (struct qeth_card *) card_ptr; |
754 | net_dev = card->dev; | |
755 | if (card->options.performance_stats) { | |
756 | card->perf_stats.inbound_cnt++; | |
757 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
758 | } | |
779e6e1c JG |
759 | if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
760 | QETH_DBF_TEXT(TRACE, 1, "qdinchk"); | |
761 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
762 | QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, | |
763 | count); | |
764 | QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); | |
765 | qeth_schedule_recovery(card); | |
766 | return; | |
4a71df50 FB |
767 | } |
768 | for (i = first_element; i < (first_element + count); ++i) { | |
769 | index = i % QDIO_MAX_BUFFERS_PER_Q; | |
770 | buffer = &card->qdio.in_q->bufs[index]; | |
779e6e1c | 771 | if (!(qdio_err && |
76b11f8e UB |
772 | qeth_check_qdio_errors(card, buffer->buffer, qdio_err, |
773 | "qinerr"))) | |
4a71df50 FB |
774 | qeth_l2_process_inbound_buffer(card, buffer, index); |
775 | /* clear buffer and give back to hardware */ | |
776 | qeth_put_buffer_pool_entry(card, buffer->pool_entry); | |
777 | qeth_queue_input_buffer(card, index); | |
778 | } | |
779 | if (card->options.performance_stats) | |
780 | card->perf_stats.inbound_time += qeth_get_micros() - | |
781 | card->perf_stats.inbound_start_time; | |
782 | } | |
783 | ||
784 | static int qeth_l2_open(struct net_device *dev) | |
785 | { | |
509e2562 | 786 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 787 | |
d11ba0c4 | 788 | QETH_DBF_TEXT(TRACE, 4, "qethopen"); |
4a71df50 FB |
789 | if (card->state != CARD_STATE_SOFTSETUP) |
790 | return -ENODEV; | |
791 | ||
792 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
793 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
d11ba0c4 | 794 | QETH_DBF_TEXT(TRACE, 4, "nomacadr"); |
4a71df50 FB |
795 | return -EPERM; |
796 | } | |
797 | card->data.state = CH_STATE_UP; | |
798 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
799 | netif_start_queue(dev); |
800 | ||
801 | if (!card->lan_online && netif_carrier_ok(dev)) | |
802 | netif_carrier_off(dev); | |
803 | return 0; | |
804 | } | |
805 | ||
806 | ||
807 | static int qeth_l2_stop(struct net_device *dev) | |
808 | { | |
509e2562 | 809 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 810 | |
d11ba0c4 | 811 | QETH_DBF_TEXT(TRACE, 4, "qethstop"); |
4a71df50 | 812 | netif_tx_disable(dev); |
4a71df50 FB |
813 | if (card->state == CARD_STATE_UP) |
814 | card->state = CARD_STATE_SOFTSETUP; | |
815 | return 0; | |
816 | } | |
817 | ||
818 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
819 | { | |
820 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
821 | ||
822 | INIT_LIST_HEAD(&card->vid_list); | |
823 | INIT_LIST_HEAD(&card->mc_list); | |
824 | card->options.layer2 = 1; | |
825 | card->discipline.input_handler = (qdio_handler_t *) | |
826 | qeth_l2_qdio_input_handler; | |
827 | card->discipline.output_handler = (qdio_handler_t *) | |
828 | qeth_qdio_output_handler; | |
829 | card->discipline.recover = qeth_l2_recover; | |
830 | return 0; | |
831 | } | |
832 | ||
833 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
834 | { | |
835 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
836 | ||
f2148565 | 837 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
838 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
839 | ||
840 | if (cgdev->state == CCWGROUP_ONLINE) { | |
841 | card->use_hard_stop = 1; | |
842 | qeth_l2_set_offline(cgdev); | |
843 | } | |
844 | ||
845 | if (card->dev) { | |
846 | unregister_netdev(card->dev); | |
847 | card->dev = NULL; | |
848 | } | |
849 | ||
850 | qeth_l2_del_all_mc(card); | |
851 | return; | |
852 | } | |
853 | ||
0fc0b732 | 854 | static const struct ethtool_ops qeth_l2_ethtool_ops = { |
4a71df50 | 855 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
856 | .get_strings = qeth_core_get_strings, |
857 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 858 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 859 | .get_drvinfo = qeth_core_get_drvinfo, |
3f9975aa | 860 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
861 | }; |
862 | ||
0fc0b732 | 863 | static const struct ethtool_ops qeth_l2_osn_ops = { |
4a71df50 FB |
864 | .get_strings = qeth_core_get_strings, |
865 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 866 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 FB |
867 | .get_drvinfo = qeth_core_get_drvinfo, |
868 | }; | |
869 | ||
3d58cefd | 870 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
871 | .ndo_open = qeth_l2_open, |
872 | .ndo_stop = qeth_l2_stop, | |
873 | .ndo_get_stats = qeth_get_stats, | |
874 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
875 | .ndo_validate_addr = eth_validate_addr, | |
876 | .ndo_set_multicast_list = qeth_l2_set_multicast_list, | |
877 | .ndo_do_ioctl = qeth_l2_do_ioctl, | |
878 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
879 | .ndo_change_mtu = qeth_change_mtu, | |
880 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
881 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
882 | .ndo_tx_timeout = qeth_tx_timeout, | |
883 | }; | |
884 | ||
4a71df50 FB |
885 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
886 | { | |
887 | switch (card->info.type) { | |
888 | case QETH_CARD_TYPE_OSAE: | |
889 | card->dev = alloc_etherdev(0); | |
890 | break; | |
891 | case QETH_CARD_TYPE_IQD: | |
892 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
893 | break; | |
894 | case QETH_CARD_TYPE_OSN: | |
895 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
896 | card->dev->flags |= IFF_NOARP; | |
897 | break; | |
898 | default: | |
899 | card->dev = alloc_etherdev(0); | |
900 | } | |
901 | ||
902 | if (!card->dev) | |
903 | return -ENODEV; | |
904 | ||
509e2562 | 905 | card->dev->ml_priv = card; |
4a71df50 | 906 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 907 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 908 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
909 | if (card->info.type != QETH_CARD_TYPE_OSN) |
910 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
911 | else | |
912 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
913 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
914 | card->info.broadcast_capable = 1; | |
915 | qeth_l2_request_initial_mac(card); | |
916 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
917 | return register_netdev(card->dev); | |
918 | } | |
919 | ||
920 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
921 | { | |
922 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
923 | int rc = 0; | |
924 | enum qeth_card_states recover_flag; | |
925 | ||
926 | BUG_ON(!card); | |
d11ba0c4 PT |
927 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
928 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 929 | |
4a71df50 | 930 | recover_flag = card->state; |
4a71df50 FB |
931 | rc = qeth_core_hardsetup_card(card); |
932 | if (rc) { | |
d11ba0c4 | 933 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
aa909224 | 934 | rc = -ENODEV; |
4a71df50 FB |
935 | goto out_remove; |
936 | } | |
937 | ||
aa909224 UB |
938 | if (!card->dev && qeth_l2_setup_netdev(card)) { |
939 | rc = -ENODEV; | |
4a71df50 | 940 | goto out_remove; |
aa909224 | 941 | } |
4a71df50 FB |
942 | |
943 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
944 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
945 | ||
946 | card->state = CARD_STATE_HARDSETUP; | |
947 | qeth_print_status_message(card); | |
948 | ||
949 | /* softsetup */ | |
d11ba0c4 | 950 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
951 | |
952 | rc = qeth_send_startlan(card); | |
953 | if (rc) { | |
d11ba0c4 | 954 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 955 | if (rc == 0xe080) { |
74eacdb9 FB |
956 | dev_warn(&card->gdev->dev, |
957 | "The LAN is offline\n"); | |
4a71df50 | 958 | card->lan_online = 0; |
f2148565 | 959 | return 0; |
4a71df50 | 960 | } |
aa909224 | 961 | rc = -ENODEV; |
f2148565 | 962 | goto out_remove; |
4a71df50 FB |
963 | } else |
964 | card->lan_online = 1; | |
965 | ||
966 | if (card->info.type != QETH_CARD_TYPE_OSN) { | |
d64ecc22 EL |
967 | /* configure isolation level */ |
968 | qeth_set_access_ctrl_online(card); | |
4a71df50 FB |
969 | qeth_l2_process_vlans(card, 0); |
970 | } | |
971 | ||
972 | netif_tx_disable(card->dev); | |
973 | ||
974 | rc = qeth_init_qdio_queues(card); | |
975 | if (rc) { | |
d11ba0c4 | 976 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 977 | rc = -ENODEV; |
4a71df50 FB |
978 | goto out_remove; |
979 | } | |
980 | card->state = CARD_STATE_SOFTSETUP; | |
981 | netif_carrier_on(card->dev); | |
982 | ||
983 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
984 | if (recover_flag == CARD_STATE_RECOVER) { | |
985 | if (recovery_mode && | |
986 | card->info.type != QETH_CARD_TYPE_OSN) { | |
987 | qeth_l2_open(card->dev); | |
988 | } else { | |
989 | rtnl_lock(); | |
990 | dev_open(card->dev); | |
991 | rtnl_unlock(); | |
992 | } | |
993 | /* this also sets saved unicast addresses */ | |
994 | qeth_l2_set_multicast_list(card->dev); | |
995 | } | |
996 | /* let user_space know that device is online */ | |
997 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
998 | return 0; | |
aa909224 | 999 | |
4a71df50 FB |
1000 | out_remove: |
1001 | card->use_hard_stop = 1; | |
1002 | qeth_l2_stop_card(card, 0); | |
1003 | ccw_device_set_offline(CARD_DDEV(card)); | |
1004 | ccw_device_set_offline(CARD_WDEV(card)); | |
1005 | ccw_device_set_offline(CARD_RDEV(card)); | |
1006 | if (recover_flag == CARD_STATE_RECOVER) | |
1007 | card->state = CARD_STATE_RECOVER; | |
1008 | else | |
1009 | card->state = CARD_STATE_DOWN; | |
aa909224 | 1010 | return rc; |
4a71df50 FB |
1011 | } |
1012 | ||
1013 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1014 | { | |
1015 | return __qeth_l2_set_online(gdev, 0); | |
1016 | } | |
1017 | ||
1018 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1019 | int recovery_mode) | |
1020 | { | |
1021 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1022 | int rc = 0, rc2 = 0, rc3 = 0; | |
1023 | enum qeth_card_states recover_flag; | |
1024 | ||
d11ba0c4 PT |
1025 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1026 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1027 | |
1028 | if (card->dev && netif_carrier_ok(card->dev)) | |
1029 | netif_carrier_off(card->dev); | |
1030 | recover_flag = card->state; | |
0f5623c9 | 1031 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1032 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1033 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1034 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1035 | if (!rc) | |
1036 | rc = (rc2) ? rc2 : rc3; | |
1037 | if (rc) | |
d11ba0c4 | 1038 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1039 | if (recover_flag == CARD_STATE_UP) |
1040 | card->state = CARD_STATE_RECOVER; | |
1041 | /* let user_space know that device is offline */ | |
1042 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
1043 | return 0; | |
1044 | } | |
1045 | ||
1046 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1047 | { | |
1048 | return __qeth_l2_set_offline(cgdev, 0); | |
1049 | } | |
1050 | ||
1051 | static int qeth_l2_recover(void *ptr) | |
1052 | { | |
1053 | struct qeth_card *card; | |
1054 | int rc = 0; | |
1055 | ||
1056 | card = (struct qeth_card *) ptr; | |
d11ba0c4 PT |
1057 | QETH_DBF_TEXT(TRACE, 2, "recover1"); |
1058 | QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1059 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1060 | return 0; | |
d11ba0c4 | 1061 | QETH_DBF_TEXT(TRACE, 2, "recover2"); |
74eacdb9 FB |
1062 | dev_warn(&card->gdev->dev, |
1063 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1064 | card->use_hard_stop = 1; |
1065 | __qeth_l2_set_offline(card->gdev, 1); | |
1066 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1067 | /* don't run another scheduled recovery */ | |
1068 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
1069 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
1070 | if (!rc) | |
74eacdb9 FB |
1071 | dev_info(&card->gdev->dev, |
1072 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1073 | else { |
869da90b UB |
1074 | rtnl_lock(); |
1075 | dev_close(card->dev); | |
1076 | rtnl_unlock(); | |
74eacdb9 FB |
1077 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1078 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1079 | } |
4a71df50 FB |
1080 | return 0; |
1081 | } | |
1082 | ||
1083 | static int __init qeth_l2_init(void) | |
1084 | { | |
74eacdb9 | 1085 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1086 | return 0; |
1087 | } | |
1088 | ||
1089 | static void __exit qeth_l2_exit(void) | |
1090 | { | |
74eacdb9 | 1091 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1092 | } |
1093 | ||
1094 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1095 | { | |
1096 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1097 | qeth_qdio_clear_card(card, 0); | |
1098 | qeth_clear_qdio_buffers(card); | |
1099 | } | |
1100 | ||
bbcfcdc8 FB |
1101 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
1102 | { | |
1103 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1104 | ||
1105 | if (card->dev) | |
1106 | netif_device_detach(card->dev); | |
1107 | qeth_set_allowed_threads(card, 0, 1); | |
1108 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
1109 | if (gdev->state == CCWGROUP_OFFLINE) | |
1110 | return 0; | |
1111 | if (card->state == CARD_STATE_UP) { | |
1112 | card->use_hard_stop = 1; | |
1113 | __qeth_l2_set_offline(card->gdev, 1); | |
1114 | } else | |
1115 | __qeth_l2_set_offline(card->gdev, 0); | |
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
1120 | { | |
1121 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1122 | int rc = 0; | |
1123 | ||
1124 | if (gdev->state == CCWGROUP_OFFLINE) | |
1125 | goto out; | |
1126 | ||
1127 | if (card->state == CARD_STATE_RECOVER) { | |
1128 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1129 | if (rc) { | |
869da90b UB |
1130 | rtnl_lock(); |
1131 | dev_close(card->dev); | |
1132 | rtnl_unlock(); | |
bbcfcdc8 FB |
1133 | } |
1134 | } else | |
1135 | rc = __qeth_l2_set_online(card->gdev, 0); | |
1136 | out: | |
1137 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1138 | if (card->dev) | |
1139 | netif_device_attach(card->dev); | |
1140 | if (rc) | |
1141 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1142 | "failed to recover an error on the device\n"); | |
1143 | return rc; | |
1144 | } | |
1145 | ||
4a71df50 FB |
1146 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { |
1147 | .probe = qeth_l2_probe_device, | |
1148 | .remove = qeth_l2_remove_device, | |
1149 | .set_online = qeth_l2_set_online, | |
1150 | .set_offline = qeth_l2_set_offline, | |
1151 | .shutdown = qeth_l2_shutdown, | |
bbcfcdc8 FB |
1152 | .freeze = qeth_l2_pm_suspend, |
1153 | .thaw = qeth_l2_pm_resume, | |
1154 | .restore = qeth_l2_pm_resume, | |
4a71df50 FB |
1155 | }; |
1156 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1157 | ||
1158 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1159 | struct qeth_cmd_buffer *iob) | |
1160 | { | |
1161 | unsigned long flags; | |
1162 | int rc = 0; | |
1163 | ||
d11ba0c4 | 1164 | QETH_DBF_TEXT(TRACE, 5, "osndctrd"); |
4a71df50 FB |
1165 | |
1166 | wait_event(card->wait_q, | |
1167 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1168 | qeth_prepare_control_data(card, len, iob); | |
d11ba0c4 | 1169 | QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); |
4a71df50 FB |
1170 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1171 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1172 | (addr_t) iob, 0, 0); | |
1173 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1174 | if (rc) { | |
14cc21b6 | 1175 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1176 | "ccw_device_start rc = %i\n", rc); |
d11ba0c4 | 1177 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
4a71df50 FB |
1178 | qeth_release_buffer(iob->channel, iob); |
1179 | atomic_set(&card->write.irq_pending, 0); | |
1180 | wake_up(&card->wait_q); | |
1181 | } | |
1182 | return rc; | |
1183 | } | |
1184 | ||
1185 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1186 | struct qeth_cmd_buffer *iob, int data_len) | |
1187 | { | |
1188 | u16 s1, s2; | |
1189 | ||
d11ba0c4 | 1190 | QETH_DBF_TEXT(TRACE, 4, "osndipa"); |
4a71df50 FB |
1191 | |
1192 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1193 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1194 | s2 = (u16)data_len; | |
1195 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1196 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1197 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1198 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1199 | return qeth_osn_send_control_data(card, s1, iob); | |
1200 | } | |
1201 | ||
1202 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1203 | { | |
1204 | struct qeth_cmd_buffer *iob; | |
1205 | struct qeth_card *card; | |
1206 | int rc; | |
1207 | ||
d11ba0c4 | 1208 | QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); |
4a71df50 FB |
1209 | if (!dev) |
1210 | return -ENODEV; | |
509e2562 | 1211 | card = dev->ml_priv; |
4a71df50 FB |
1212 | if (!card) |
1213 | return -ENODEV; | |
1214 | if ((card->state != CARD_STATE_UP) && | |
1215 | (card->state != CARD_STATE_SOFTSETUP)) | |
1216 | return -ENODEV; | |
1217 | iob = qeth_wait_for_buffer(&card->write); | |
1218 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1219 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1220 | return rc; | |
1221 | } | |
1222 | EXPORT_SYMBOL(qeth_osn_assist); | |
1223 | ||
1224 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1225 | int (*assist_cb)(struct net_device *, void *), | |
1226 | int (*data_cb)(struct sk_buff *)) | |
1227 | { | |
1228 | struct qeth_card *card; | |
1229 | ||
d11ba0c4 | 1230 | QETH_DBF_TEXT(TRACE, 2, "osnreg"); |
4a71df50 FB |
1231 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1232 | if (*dev == NULL) | |
1233 | return -ENODEV; | |
509e2562 | 1234 | card = (*dev)->ml_priv; |
4a71df50 FB |
1235 | if (!card) |
1236 | return -ENODEV; | |
1237 | if ((assist_cb == NULL) || (data_cb == NULL)) | |
1238 | return -EINVAL; | |
1239 | card->osn_info.assist_cb = assist_cb; | |
1240 | card->osn_info.data_cb = data_cb; | |
1241 | return 0; | |
1242 | } | |
1243 | EXPORT_SYMBOL(qeth_osn_register); | |
1244 | ||
1245 | void qeth_osn_deregister(struct net_device *dev) | |
1246 | { | |
1247 | struct qeth_card *card; | |
1248 | ||
d11ba0c4 | 1249 | QETH_DBF_TEXT(TRACE, 2, "osndereg"); |
4a71df50 FB |
1250 | if (!dev) |
1251 | return; | |
509e2562 | 1252 | card = dev->ml_priv; |
4a71df50 FB |
1253 | if (!card) |
1254 | return; | |
1255 | card->osn_info.assist_cb = NULL; | |
1256 | card->osn_info.data_cb = NULL; | |
1257 | return; | |
1258 | } | |
1259 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1260 | ||
1261 | module_init(qeth_l2_init); | |
1262 | module_exit(qeth_l2_exit); | |
1263 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1264 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1265 | MODULE_LICENSE("GPL"); |