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 | ||
219 | static void qeth_l2_get_packet_type(struct qeth_card *card, | |
220 | struct qeth_hdr *hdr, struct sk_buff *skb) | |
221 | { | |
222 | __u16 hdr_mac; | |
223 | ||
224 | if (!memcmp(skb->data + QETH_HEADER_SIZE, | |
225 | skb->dev->broadcast, 6)) { | |
226 | /* broadcast? */ | |
227 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
228 | return; | |
229 | } | |
230 | hdr_mac = *((__u16 *)skb->data); | |
231 | /* tr multicast? */ | |
232 | switch (card->info.link_type) { | |
233 | case QETH_LINK_TYPE_HSTR: | |
234 | case QETH_LINK_TYPE_LANE_TR: | |
235 | if ((hdr_mac == QETH_TR_MAC_NC) || | |
236 | (hdr_mac == QETH_TR_MAC_C)) | |
237 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
238 | else | |
239 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
240 | break; | |
241 | /* eth or so multicast? */ | |
242 | default: | |
243 | if ((hdr_mac == QETH_ETH_MAC_V4) || | |
244 | (hdr_mac == QETH_ETH_MAC_V6)) | |
245 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
246 | else | |
247 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
248 | } | |
249 | } | |
250 | ||
251 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
252 | struct sk_buff *skb, int ipv, int cast_type) | |
253 | { | |
683d718a | 254 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
255 | |
256 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
257 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
258 | ||
259 | /* set byte byte 3 to casting flags */ | |
260 | if (cast_type == RTN_MULTICAST) | |
261 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
262 | else if (cast_type == RTN_BROADCAST) | |
263 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
264 | else | |
265 | qeth_l2_get_packet_type(card, hdr, skb); | |
266 | ||
267 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
268 | /* VSWITCH relies on the VLAN | |
269 | * information to be present in | |
270 | * the QDIO header */ | |
271 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
272 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
273 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
274 | } | |
275 | } | |
276 | ||
277 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
278 | struct qeth_reply *reply, unsigned long data) | |
279 | { | |
280 | struct qeth_ipa_cmd *cmd; | |
281 | ||
d11ba0c4 | 282 | QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); |
4a71df50 FB |
283 | cmd = (struct qeth_ipa_cmd *) data; |
284 | if (cmd->hdr.return_code) { | |
14cc21b6 | 285 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
286 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
287 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
d11ba0c4 PT |
288 | QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); |
289 | QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); | |
290 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
291 | } |
292 | return 0; | |
293 | } | |
294 | ||
295 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
296 | enum qeth_ipa_cmds ipacmd) | |
297 | { | |
298 | struct qeth_ipa_cmd *cmd; | |
299 | struct qeth_cmd_buffer *iob; | |
300 | ||
d11ba0c4 | 301 | QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
302 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
303 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
304 | cmd->data.setdelvlan.vlan_id = i; | |
305 | return qeth_send_ipa_cmd(card, iob, | |
306 | qeth_l2_send_setdelvlan_cb, NULL); | |
307 | } | |
308 | ||
309 | static void qeth_l2_process_vlans(struct qeth_card *card, int clear) | |
310 | { | |
311 | struct qeth_vlan_vid *id; | |
d11ba0c4 | 312 | QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); |
4a71df50 FB |
313 | spin_lock_bh(&card->vlanlock); |
314 | list_for_each_entry(id, &card->vid_list, list) { | |
315 | if (clear) | |
316 | qeth_l2_send_setdelvlan(card, id->vid, | |
317 | IPA_CMD_DELVLAN); | |
318 | else | |
319 | qeth_l2_send_setdelvlan(card, id->vid, | |
320 | IPA_CMD_SETVLAN); | |
321 | } | |
322 | spin_unlock_bh(&card->vlanlock); | |
323 | } | |
324 | ||
325 | static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
326 | { | |
509e2562 | 327 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
328 | struct qeth_vlan_vid *id; |
329 | ||
d11ba0c4 | 330 | QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); |
8e98ac48 UB |
331 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
332 | QETH_DBF_TEXT(TRACE, 3, "aidREC"); | |
333 | return; | |
334 | } | |
4a71df50 FB |
335 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
336 | if (id) { | |
337 | id->vid = vid; | |
338 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
339 | spin_lock_bh(&card->vlanlock); | |
340 | list_add_tail(&id->list, &card->vid_list); | |
341 | spin_unlock_bh(&card->vlanlock); | |
4a71df50 FB |
342 | } |
343 | } | |
344 | ||
345 | static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
346 | { | |
347 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 348 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 349 | |
d11ba0c4 | 350 | QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); |
8e98ac48 UB |
351 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
352 | QETH_DBF_TEXT(TRACE, 3, "kidREC"); | |
353 | return; | |
354 | } | |
4a71df50 FB |
355 | spin_lock_bh(&card->vlanlock); |
356 | list_for_each_entry(id, &card->vid_list, list) { | |
357 | if (id->vid == vid) { | |
358 | list_del(&id->list); | |
359 | tmpid = id; | |
360 | break; | |
361 | } | |
362 | } | |
363 | spin_unlock_bh(&card->vlanlock); | |
364 | if (tmpid) { | |
365 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
366 | kfree(tmpid); | |
367 | } | |
368 | qeth_l2_set_multicast_list(card->dev); | |
369 | } | |
370 | ||
371 | static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) | |
372 | { | |
373 | int rc = 0; | |
374 | ||
d11ba0c4 PT |
375 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
376 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
377 | |
378 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
379 | if (card->read.state == CH_STATE_UP && |
380 | card->write.state == CH_STATE_UP && | |
381 | (card->state == CARD_STATE_UP)) { | |
382 | if (recovery_mode && | |
383 | card->info.type != QETH_CARD_TYPE_OSN) { | |
384 | qeth_l2_stop(card->dev); | |
385 | } else { | |
386 | rtnl_lock(); | |
387 | dev_close(card->dev); | |
388 | rtnl_unlock(); | |
389 | } | |
932e1583 KDW |
390 | if (!card->use_hard_stop || |
391 | recovery_mode) { | |
4a71df50 FB |
392 | __u8 *mac = &card->dev->dev_addr[0]; |
393 | rc = qeth_l2_send_delmac(card, mac); | |
d11ba0c4 | 394 | QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); |
4a71df50 FB |
395 | } |
396 | card->state = CARD_STATE_SOFTSETUP; | |
397 | } | |
398 | if (card->state == CARD_STATE_SOFTSETUP) { | |
399 | qeth_l2_process_vlans(card, 1); | |
932e1583 KDW |
400 | if (!card->use_hard_stop || |
401 | recovery_mode) | |
28a7e4c9 | 402 | qeth_l2_del_all_mc(card); |
4a71df50 FB |
403 | qeth_clear_ipacmd_list(card); |
404 | card->state = CARD_STATE_HARDSETUP; | |
405 | } | |
406 | if (card->state == CARD_STATE_HARDSETUP) { | |
407 | qeth_qdio_clear_card(card, 0); | |
408 | qeth_clear_qdio_buffers(card); | |
409 | qeth_clear_working_pool_list(card); | |
410 | card->state = CARD_STATE_DOWN; | |
411 | } | |
412 | if (card->state == CARD_STATE_DOWN) { | |
413 | qeth_clear_cmd_buffers(&card->read); | |
414 | qeth_clear_cmd_buffers(&card->write); | |
415 | } | |
416 | card->use_hard_stop = 0; | |
417 | return rc; | |
418 | } | |
419 | ||
420 | static void qeth_l2_process_inbound_buffer(struct qeth_card *card, | |
421 | struct qeth_qdio_buffer *buf, int index) | |
422 | { | |
423 | struct qdio_buffer_element *element; | |
424 | struct sk_buff *skb; | |
425 | struct qeth_hdr *hdr; | |
426 | int offset; | |
427 | unsigned int len; | |
428 | ||
429 | /* get first element of current buffer */ | |
430 | element = (struct qdio_buffer_element *)&buf->buffer->element[0]; | |
431 | offset = 0; | |
432 | if (card->options.performance_stats) | |
433 | card->perf_stats.bufs_rec++; | |
434 | while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, | |
435 | &offset, &hdr))) { | |
436 | skb->dev = card->dev; | |
437 | /* is device UP ? */ | |
438 | if (!(card->dev->flags & IFF_UP)) { | |
439 | dev_kfree_skb_any(skb); | |
440 | continue; | |
441 | } | |
442 | ||
443 | switch (hdr->hdr.l2.id) { | |
444 | case QETH_HEADER_TYPE_LAYER2: | |
445 | skb->pkt_type = PACKET_HOST; | |
446 | skb->protocol = eth_type_trans(skb, skb->dev); | |
447 | if (card->options.checksum_type == NO_CHECKSUMMING) | |
448 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
449 | else | |
450 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
451 | if (skb->protocol == htons(ETH_P_802_2)) |
452 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 FB |
453 | len = skb->len; |
454 | netif_rx(skb); | |
455 | break; | |
456 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
457 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
458 | skb_push(skb, sizeof(struct qeth_hdr)); | |
459 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 460 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
461 | len = skb->len; |
462 | card->osn_info.data_cb(skb); | |
463 | break; | |
464 | } | |
465 | /* else unknown */ | |
4a71df50 FB |
466 | default: |
467 | dev_kfree_skb_any(skb); | |
d11ba0c4 PT |
468 | QETH_DBF_TEXT(TRACE, 3, "inbunkno"); |
469 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); | |
4a71df50 FB |
470 | continue; |
471 | } | |
472 | card->dev->last_rx = jiffies; | |
473 | card->stats.rx_packets++; | |
474 | card->stats.rx_bytes += len; | |
475 | } | |
476 | } | |
477 | ||
478 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
479 | enum qeth_ipa_cmds ipacmd, | |
480 | int (*reply_cb) (struct qeth_card *, | |
481 | struct qeth_reply*, | |
482 | unsigned long)) | |
483 | { | |
484 | struct qeth_ipa_cmd *cmd; | |
485 | struct qeth_cmd_buffer *iob; | |
486 | ||
d11ba0c4 | 487 | QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); |
4a71df50 FB |
488 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
489 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
490 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
491 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
492 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
493 | } | |
494 | ||
495 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
496 | struct qeth_reply *reply, | |
497 | unsigned long data) | |
498 | { | |
499 | struct qeth_ipa_cmd *cmd; | |
500 | ||
d11ba0c4 | 501 | QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); |
4a71df50 FB |
502 | cmd = (struct qeth_ipa_cmd *) data; |
503 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 504 | QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 | 505 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
0666eb06 UB |
506 | switch (cmd->hdr.return_code) { |
507 | case IPA_RC_L2_DUP_MAC: | |
508 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
509 | dev_warn(&card->gdev->dev, | |
510 | "MAC address " | |
511 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " | |
512 | "already exists\n", | |
513 | card->dev->dev_addr[0], card->dev->dev_addr[1], | |
514 | card->dev->dev_addr[2], card->dev->dev_addr[3], | |
515 | card->dev->dev_addr[4], card->dev->dev_addr[5]); | |
516 | break; | |
517 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
518 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
519 | dev_warn(&card->gdev->dev, | |
520 | "MAC address " | |
521 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " | |
522 | "is not authorized\n", | |
523 | card->dev->dev_addr[0], card->dev->dev_addr[1], | |
524 | card->dev->dev_addr[2], card->dev->dev_addr[3], | |
525 | card->dev->dev_addr[4], card->dev->dev_addr[5]); | |
526 | break; | |
527 | default: | |
528 | break; | |
529 | } | |
4a71df50 FB |
530 | cmd->hdr.return_code = -EIO; |
531 | } else { | |
532 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
533 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
534 | OSA_ADDR_LEN); | |
74eacdb9 FB |
535 | dev_info(&card->gdev->dev, |
536 | "MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " | |
537 | "successfully registered on device %s\n", | |
538 | card->dev->dev_addr[0], card->dev->dev_addr[1], | |
539 | card->dev->dev_addr[2], card->dev->dev_addr[3], | |
540 | card->dev->dev_addr[4], card->dev->dev_addr[5], | |
541 | card->dev->name); | |
4a71df50 FB |
542 | } |
543 | return 0; | |
544 | } | |
545 | ||
546 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
547 | { | |
d11ba0c4 | 548 | QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); |
4a71df50 FB |
549 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
550 | qeth_l2_send_setmac_cb); | |
551 | } | |
552 | ||
553 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
554 | struct qeth_reply *reply, | |
555 | unsigned long data) | |
556 | { | |
557 | struct qeth_ipa_cmd *cmd; | |
558 | ||
d11ba0c4 | 559 | QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); |
4a71df50 FB |
560 | cmd = (struct qeth_ipa_cmd *) data; |
561 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 562 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
563 | cmd->hdr.return_code = -EIO; |
564 | return 0; | |
565 | } | |
566 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
567 | ||
568 | return 0; | |
569 | } | |
570 | ||
571 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
572 | { | |
d11ba0c4 | 573 | QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); |
4a71df50 FB |
574 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
575 | return 0; | |
576 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
577 | qeth_l2_send_delmac_cb); | |
578 | } | |
579 | ||
580 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
581 | { | |
582 | int rc = 0; | |
583 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
584 | ||
d11ba0c4 PT |
585 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
586 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
587 | |
588 | rc = qeth_query_setadapterparms(card); | |
589 | if (rc) { | |
14cc21b6 FB |
590 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
591 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
592 | } |
593 | ||
f1d58672 UB |
594 | if ((card->info.type == QETH_CARD_TYPE_IQD) || |
595 | (card->info.guestlan)) { | |
4a71df50 FB |
596 | rc = qeth_setadpparms_change_macaddr(card); |
597 | if (rc) { | |
14cc21b6 FB |
598 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
599 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 600 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
601 | return rc; |
602 | } | |
d11ba0c4 | 603 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
604 | } else { |
605 | random_ether_addr(card->dev->dev_addr); | |
606 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
607 | } | |
608 | return 0; | |
609 | } | |
610 | ||
611 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
612 | { | |
613 | struct sockaddr *addr = p; | |
509e2562 | 614 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
615 | int rc = 0; |
616 | ||
d11ba0c4 | 617 | QETH_DBF_TEXT(TRACE, 3, "setmac"); |
4a71df50 FB |
618 | |
619 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
d11ba0c4 | 620 | QETH_DBF_TEXT(TRACE, 3, "setmcINV"); |
4a71df50 FB |
621 | return -EOPNOTSUPP; |
622 | } | |
623 | ||
624 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
d11ba0c4 | 625 | QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); |
4a71df50 FB |
626 | return -EOPNOTSUPP; |
627 | } | |
d11ba0c4 PT |
628 | QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); |
629 | QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); | |
8e98ac48 UB |
630 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
631 | QETH_DBF_TEXT(TRACE, 3, "setmcREC"); | |
632 | return -ERESTARTSYS; | |
633 | } | |
4a71df50 FB |
634 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
635 | if (!rc) | |
636 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
637 | return rc; | |
638 | } | |
639 | ||
640 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
641 | { | |
509e2562 | 642 | struct qeth_card *card = dev->ml_priv; |
7db2266a | 643 | struct dev_addr_list *dm; |
ccffad25 | 644 | struct netdev_hw_addr *ha; |
4a71df50 FB |
645 | |
646 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
647 | return ; | |
648 | ||
d11ba0c4 | 649 | QETH_DBF_TEXT(TRACE, 3, "setmulti"); |
8e98ac48 UB |
650 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
651 | (card->state != CARD_STATE_UP)) | |
652 | return; | |
4a71df50 FB |
653 | qeth_l2_del_all_mc(card); |
654 | spin_lock_bh(&card->mclock); | |
655 | for (dm = dev->mc_list; dm; dm = dm->next) | |
7db2266a FB |
656 | qeth_l2_add_mc(card, dm->da_addr, 0); |
657 | ||
31278e71 | 658 | list_for_each_entry(ha, &dev->uc.list, list) |
ccffad25 | 659 | qeth_l2_add_mc(card, ha->addr, 1); |
7db2266a | 660 | |
4a71df50 FB |
661 | spin_unlock_bh(&card->mclock); |
662 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
663 | return; | |
664 | qeth_setadp_promisc_mode(card); | |
665 | } | |
666 | ||
667 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
668 | { | |
669 | int rc; | |
670 | struct qeth_hdr *hdr = NULL; | |
671 | int elements = 0; | |
509e2562 | 672 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
673 | struct sk_buff *new_skb = skb; |
674 | int ipv = qeth_get_ip_version(skb); | |
675 | int cast_type = qeth_get_cast_type(card, skb); | |
676 | struct qeth_qdio_out_q *queue = card->qdio.out_qs | |
677 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
678 | int tx_bytes = skb->len; | |
683d718a FB |
679 | int data_offset = -1; |
680 | int elements_needed = 0; | |
681 | int hd_len = 0; | |
4a71df50 | 682 | |
4a71df50 FB |
683 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
684 | card->stats.tx_carrier_errors++; | |
685 | goto tx_drop; | |
686 | } | |
687 | ||
688 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
689 | (skb->protocol == htons(ETH_P_IPV6))) | |
690 | goto tx_drop; | |
691 | ||
692 | if (card->options.performance_stats) { | |
693 | card->perf_stats.outbound_cnt++; | |
694 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
695 | } | |
696 | netif_stop_queue(dev); | |
697 | ||
4a71df50 FB |
698 | if (card->info.type == QETH_CARD_TYPE_OSN) |
699 | hdr = (struct qeth_hdr *)skb->data; | |
700 | else { | |
64ef8957 | 701 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
702 | new_skb = skb; |
703 | data_offset = ETH_HLEN; | |
704 | hd_len = ETH_HLEN; | |
705 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
706 | GFP_ATOMIC); | |
707 | if (!hdr) | |
708 | goto tx_drop; | |
709 | elements_needed++; | |
710 | skb_reset_mac_header(new_skb); | |
711 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
712 | hdr->hdr.l2.pkt_length = new_skb->len; | |
713 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
714 | skb_mac_header(new_skb), ETH_HLEN); | |
715 | } else { | |
716 | /* create a clone with writeable headroom */ | |
717 | new_skb = skb_realloc_headroom(skb, | |
718 | sizeof(struct qeth_hdr)); | |
719 | if (!new_skb) | |
720 | goto tx_drop; | |
721 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 722 | sizeof(struct qeth_hdr)); |
683d718a FB |
723 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
724 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
725 | } | |
4a71df50 FB |
726 | } |
727 | ||
64ef8957 | 728 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 729 | elements_needed); |
64ef8957 FB |
730 | if (!elements) { |
731 | if (data_offset >= 0) | |
732 | kmem_cache_free(qeth_core_header_cache, hdr); | |
733 | goto tx_drop; | |
f61a0d05 | 734 | } |
4a71df50 FB |
735 | |
736 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
737 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, | |
64ef8957 | 738 | elements); |
4a71df50 FB |
739 | else |
740 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, | |
64ef8957 | 741 | elements, data_offset, hd_len); |
4a71df50 FB |
742 | if (!rc) { |
743 | card->stats.tx_packets++; | |
744 | card->stats.tx_bytes += tx_bytes; | |
745 | if (new_skb != skb) | |
746 | dev_kfree_skb_any(skb); | |
ec634fe3 | 747 | rc = NETDEV_TX_OK; |
4a71df50 | 748 | } else { |
683d718a FB |
749 | if (data_offset >= 0) |
750 | kmem_cache_free(qeth_core_header_cache, hdr); | |
751 | ||
4a71df50 FB |
752 | if (rc == -EBUSY) { |
753 | if (new_skb != skb) | |
754 | dev_kfree_skb_any(new_skb); | |
755 | return NETDEV_TX_BUSY; | |
756 | } else | |
757 | goto tx_drop; | |
758 | } | |
759 | ||
760 | netif_wake_queue(dev); | |
761 | if (card->options.performance_stats) | |
762 | card->perf_stats.outbound_time += qeth_get_micros() - | |
763 | card->perf_stats.outbound_start_time; | |
764 | return rc; | |
765 | ||
766 | tx_drop: | |
767 | card->stats.tx_dropped++; | |
768 | card->stats.tx_errors++; | |
769 | if ((new_skb != skb) && new_skb) | |
770 | dev_kfree_skb_any(new_skb); | |
771 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 772 | netif_wake_queue(dev); |
4a71df50 FB |
773 | return NETDEV_TX_OK; |
774 | } | |
775 | ||
776 | static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, | |
779e6e1c | 777 | unsigned int qdio_err, unsigned int queue, |
4a71df50 FB |
778 | int first_element, int count, unsigned long card_ptr) |
779 | { | |
780 | struct net_device *net_dev; | |
781 | struct qeth_card *card; | |
782 | struct qeth_qdio_buffer *buffer; | |
783 | int index; | |
784 | int i; | |
785 | ||
4a71df50 FB |
786 | card = (struct qeth_card *) card_ptr; |
787 | net_dev = card->dev; | |
788 | if (card->options.performance_stats) { | |
789 | card->perf_stats.inbound_cnt++; | |
790 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
791 | } | |
779e6e1c JG |
792 | if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
793 | QETH_DBF_TEXT(TRACE, 1, "qdinchk"); | |
794 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
795 | QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, | |
796 | count); | |
797 | QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); | |
798 | qeth_schedule_recovery(card); | |
799 | return; | |
4a71df50 FB |
800 | } |
801 | for (i = first_element; i < (first_element + count); ++i) { | |
802 | index = i % QDIO_MAX_BUFFERS_PER_Q; | |
803 | buffer = &card->qdio.in_q->bufs[index]; | |
779e6e1c JG |
804 | if (!(qdio_err && |
805 | qeth_check_qdio_errors(buffer->buffer, qdio_err, "qinerr"))) | |
4a71df50 FB |
806 | qeth_l2_process_inbound_buffer(card, buffer, index); |
807 | /* clear buffer and give back to hardware */ | |
808 | qeth_put_buffer_pool_entry(card, buffer->pool_entry); | |
809 | qeth_queue_input_buffer(card, index); | |
810 | } | |
811 | if (card->options.performance_stats) | |
812 | card->perf_stats.inbound_time += qeth_get_micros() - | |
813 | card->perf_stats.inbound_start_time; | |
814 | } | |
815 | ||
816 | static int qeth_l2_open(struct net_device *dev) | |
817 | { | |
509e2562 | 818 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 819 | |
d11ba0c4 | 820 | QETH_DBF_TEXT(TRACE, 4, "qethopen"); |
4a71df50 FB |
821 | if (card->state != CARD_STATE_SOFTSETUP) |
822 | return -ENODEV; | |
823 | ||
824 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
825 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
d11ba0c4 | 826 | QETH_DBF_TEXT(TRACE, 4, "nomacadr"); |
4a71df50 FB |
827 | return -EPERM; |
828 | } | |
829 | card->data.state = CH_STATE_UP; | |
830 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
831 | netif_start_queue(dev); |
832 | ||
833 | if (!card->lan_online && netif_carrier_ok(dev)) | |
834 | netif_carrier_off(dev); | |
835 | return 0; | |
836 | } | |
837 | ||
838 | ||
839 | static int qeth_l2_stop(struct net_device *dev) | |
840 | { | |
509e2562 | 841 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 842 | |
d11ba0c4 | 843 | QETH_DBF_TEXT(TRACE, 4, "qethstop"); |
4a71df50 | 844 | netif_tx_disable(dev); |
4a71df50 FB |
845 | if (card->state == CARD_STATE_UP) |
846 | card->state = CARD_STATE_SOFTSETUP; | |
847 | return 0; | |
848 | } | |
849 | ||
850 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
851 | { | |
852 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
853 | ||
854 | INIT_LIST_HEAD(&card->vid_list); | |
855 | INIT_LIST_HEAD(&card->mc_list); | |
856 | card->options.layer2 = 1; | |
857 | card->discipline.input_handler = (qdio_handler_t *) | |
858 | qeth_l2_qdio_input_handler; | |
859 | card->discipline.output_handler = (qdio_handler_t *) | |
860 | qeth_qdio_output_handler; | |
861 | card->discipline.recover = qeth_l2_recover; | |
862 | return 0; | |
863 | } | |
864 | ||
865 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
866 | { | |
867 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
868 | ||
f2148565 | 869 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
870 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
871 | ||
872 | if (cgdev->state == CCWGROUP_ONLINE) { | |
873 | card->use_hard_stop = 1; | |
874 | qeth_l2_set_offline(cgdev); | |
875 | } | |
876 | ||
877 | if (card->dev) { | |
878 | unregister_netdev(card->dev); | |
879 | card->dev = NULL; | |
880 | } | |
881 | ||
882 | qeth_l2_del_all_mc(card); | |
883 | return; | |
884 | } | |
885 | ||
886 | static struct ethtool_ops qeth_l2_ethtool_ops = { | |
887 | .get_link = ethtool_op_get_link, | |
4a71df50 FB |
888 | .get_strings = qeth_core_get_strings, |
889 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
890 | .get_stats_count = qeth_core_get_stats_count, | |
891 | .get_drvinfo = qeth_core_get_drvinfo, | |
3f9975aa | 892 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
893 | }; |
894 | ||
895 | static struct ethtool_ops qeth_l2_osn_ops = { | |
896 | .get_strings = qeth_core_get_strings, | |
897 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
898 | .get_stats_count = qeth_core_get_stats_count, | |
899 | .get_drvinfo = qeth_core_get_drvinfo, | |
900 | }; | |
901 | ||
3d58cefd | 902 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
903 | .ndo_open = qeth_l2_open, |
904 | .ndo_stop = qeth_l2_stop, | |
905 | .ndo_get_stats = qeth_get_stats, | |
906 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
907 | .ndo_validate_addr = eth_validate_addr, | |
908 | .ndo_set_multicast_list = qeth_l2_set_multicast_list, | |
909 | .ndo_do_ioctl = qeth_l2_do_ioctl, | |
910 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
911 | .ndo_change_mtu = qeth_change_mtu, | |
912 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
913 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
914 | .ndo_tx_timeout = qeth_tx_timeout, | |
915 | }; | |
916 | ||
4a71df50 FB |
917 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
918 | { | |
919 | switch (card->info.type) { | |
920 | case QETH_CARD_TYPE_OSAE: | |
921 | card->dev = alloc_etherdev(0); | |
922 | break; | |
923 | case QETH_CARD_TYPE_IQD: | |
924 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
925 | break; | |
926 | case QETH_CARD_TYPE_OSN: | |
927 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
928 | card->dev->flags |= IFF_NOARP; | |
929 | break; | |
930 | default: | |
931 | card->dev = alloc_etherdev(0); | |
932 | } | |
933 | ||
934 | if (!card->dev) | |
935 | return -ENODEV; | |
936 | ||
509e2562 | 937 | card->dev->ml_priv = card; |
4a71df50 | 938 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 939 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 940 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
941 | if (card->info.type != QETH_CARD_TYPE_OSN) |
942 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
943 | else | |
944 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
945 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
946 | card->info.broadcast_capable = 1; | |
947 | qeth_l2_request_initial_mac(card); | |
948 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
949 | return register_netdev(card->dev); | |
950 | } | |
951 | ||
952 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
953 | { | |
954 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
955 | int rc = 0; | |
956 | enum qeth_card_states recover_flag; | |
957 | ||
958 | BUG_ON(!card); | |
d11ba0c4 PT |
959 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
960 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
961 | |
962 | qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); | |
4a71df50 FB |
963 | recover_flag = card->state; |
964 | rc = ccw_device_set_online(CARD_RDEV(card)); | |
965 | if (rc) { | |
d11ba0c4 | 966 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
967 | return -EIO; |
968 | } | |
969 | rc = ccw_device_set_online(CARD_WDEV(card)); | |
970 | if (rc) { | |
d11ba0c4 | 971 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
972 | return -EIO; |
973 | } | |
974 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
975 | if (rc) { | |
d11ba0c4 | 976 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
977 | return -EIO; |
978 | } | |
979 | ||
980 | rc = qeth_core_hardsetup_card(card); | |
981 | if (rc) { | |
d11ba0c4 | 982 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
983 | goto out_remove; |
984 | } | |
985 | ||
986 | if (!card->dev && qeth_l2_setup_netdev(card)) | |
987 | goto out_remove; | |
988 | ||
989 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
990 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
991 | ||
992 | card->state = CARD_STATE_HARDSETUP; | |
993 | qeth_print_status_message(card); | |
994 | ||
995 | /* softsetup */ | |
d11ba0c4 | 996 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
997 | |
998 | rc = qeth_send_startlan(card); | |
999 | if (rc) { | |
d11ba0c4 | 1000 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 1001 | if (rc == 0xe080) { |
74eacdb9 FB |
1002 | dev_warn(&card->gdev->dev, |
1003 | "The LAN is offline\n"); | |
4a71df50 | 1004 | card->lan_online = 0; |
f2148565 | 1005 | return 0; |
4a71df50 | 1006 | } |
f2148565 | 1007 | goto out_remove; |
4a71df50 FB |
1008 | } else |
1009 | card->lan_online = 1; | |
1010 | ||
1011 | if (card->info.type != QETH_CARD_TYPE_OSN) { | |
1012 | qeth_set_large_send(card, card->options.large_send); | |
1013 | qeth_l2_process_vlans(card, 0); | |
1014 | } | |
1015 | ||
1016 | netif_tx_disable(card->dev); | |
1017 | ||
1018 | rc = qeth_init_qdio_queues(card); | |
1019 | if (rc) { | |
d11ba0c4 | 1020 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
1021 | goto out_remove; |
1022 | } | |
1023 | card->state = CARD_STATE_SOFTSETUP; | |
1024 | netif_carrier_on(card->dev); | |
1025 | ||
1026 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1027 | if (recover_flag == CARD_STATE_RECOVER) { | |
1028 | if (recovery_mode && | |
1029 | card->info.type != QETH_CARD_TYPE_OSN) { | |
1030 | qeth_l2_open(card->dev); | |
1031 | } else { | |
1032 | rtnl_lock(); | |
1033 | dev_open(card->dev); | |
1034 | rtnl_unlock(); | |
1035 | } | |
1036 | /* this also sets saved unicast addresses */ | |
1037 | qeth_l2_set_multicast_list(card->dev); | |
1038 | } | |
1039 | /* let user_space know that device is online */ | |
1040 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
1041 | return 0; | |
1042 | out_remove: | |
1043 | card->use_hard_stop = 1; | |
1044 | qeth_l2_stop_card(card, 0); | |
1045 | ccw_device_set_offline(CARD_DDEV(card)); | |
1046 | ccw_device_set_offline(CARD_WDEV(card)); | |
1047 | ccw_device_set_offline(CARD_RDEV(card)); | |
1048 | if (recover_flag == CARD_STATE_RECOVER) | |
1049 | card->state = CARD_STATE_RECOVER; | |
1050 | else | |
1051 | card->state = CARD_STATE_DOWN; | |
1052 | return -ENODEV; | |
1053 | } | |
1054 | ||
1055 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1056 | { | |
1057 | return __qeth_l2_set_online(gdev, 0); | |
1058 | } | |
1059 | ||
1060 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1061 | int recovery_mode) | |
1062 | { | |
1063 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1064 | int rc = 0, rc2 = 0, rc3 = 0; | |
1065 | enum qeth_card_states recover_flag; | |
1066 | ||
d11ba0c4 PT |
1067 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1068 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1069 | |
1070 | if (card->dev && netif_carrier_ok(card->dev)) | |
1071 | netif_carrier_off(card->dev); | |
1072 | recover_flag = card->state; | |
0f5623c9 | 1073 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1074 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1075 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1076 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1077 | if (!rc) | |
1078 | rc = (rc2) ? rc2 : rc3; | |
1079 | if (rc) | |
d11ba0c4 | 1080 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1081 | if (recover_flag == CARD_STATE_UP) |
1082 | card->state = CARD_STATE_RECOVER; | |
1083 | /* let user_space know that device is offline */ | |
1084 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1089 | { | |
1090 | return __qeth_l2_set_offline(cgdev, 0); | |
1091 | } | |
1092 | ||
1093 | static int qeth_l2_recover(void *ptr) | |
1094 | { | |
1095 | struct qeth_card *card; | |
1096 | int rc = 0; | |
1097 | ||
1098 | card = (struct qeth_card *) ptr; | |
d11ba0c4 PT |
1099 | QETH_DBF_TEXT(TRACE, 2, "recover1"); |
1100 | QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1101 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1102 | return 0; | |
d11ba0c4 | 1103 | QETH_DBF_TEXT(TRACE, 2, "recover2"); |
74eacdb9 FB |
1104 | dev_warn(&card->gdev->dev, |
1105 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1106 | card->use_hard_stop = 1; |
1107 | __qeth_l2_set_offline(card->gdev, 1); | |
1108 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1109 | /* don't run another scheduled recovery */ | |
1110 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
1111 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
1112 | if (!rc) | |
74eacdb9 FB |
1113 | dev_info(&card->gdev->dev, |
1114 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1115 | else { |
fc9c2460 UB |
1116 | if (card->dev) { |
1117 | rtnl_lock(); | |
1118 | dev_close(card->dev); | |
1119 | rtnl_unlock(); | |
1120 | } | |
74eacdb9 FB |
1121 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1122 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1123 | } |
4a71df50 FB |
1124 | return 0; |
1125 | } | |
1126 | ||
1127 | static int __init qeth_l2_init(void) | |
1128 | { | |
74eacdb9 | 1129 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1130 | return 0; |
1131 | } | |
1132 | ||
1133 | static void __exit qeth_l2_exit(void) | |
1134 | { | |
74eacdb9 | 1135 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1136 | } |
1137 | ||
1138 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1139 | { | |
1140 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1141 | qeth_qdio_clear_card(card, 0); | |
1142 | qeth_clear_qdio_buffers(card); | |
1143 | } | |
1144 | ||
bbcfcdc8 FB |
1145 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
1146 | { | |
1147 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1148 | ||
1149 | if (card->dev) | |
1150 | netif_device_detach(card->dev); | |
1151 | qeth_set_allowed_threads(card, 0, 1); | |
1152 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
1153 | if (gdev->state == CCWGROUP_OFFLINE) | |
1154 | return 0; | |
1155 | if (card->state == CARD_STATE_UP) { | |
1156 | card->use_hard_stop = 1; | |
1157 | __qeth_l2_set_offline(card->gdev, 1); | |
1158 | } else | |
1159 | __qeth_l2_set_offline(card->gdev, 0); | |
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
1164 | { | |
1165 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1166 | int rc = 0; | |
1167 | ||
1168 | if (gdev->state == CCWGROUP_OFFLINE) | |
1169 | goto out; | |
1170 | ||
1171 | if (card->state == CARD_STATE_RECOVER) { | |
1172 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1173 | if (rc) { | |
1174 | if (card->dev) { | |
1175 | rtnl_lock(); | |
1176 | dev_close(card->dev); | |
1177 | rtnl_unlock(); | |
1178 | } | |
1179 | } | |
1180 | } else | |
1181 | rc = __qeth_l2_set_online(card->gdev, 0); | |
1182 | out: | |
1183 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1184 | if (card->dev) | |
1185 | netif_device_attach(card->dev); | |
1186 | if (rc) | |
1187 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1188 | "failed to recover an error on the device\n"); | |
1189 | return rc; | |
1190 | } | |
1191 | ||
4a71df50 FB |
1192 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { |
1193 | .probe = qeth_l2_probe_device, | |
1194 | .remove = qeth_l2_remove_device, | |
1195 | .set_online = qeth_l2_set_online, | |
1196 | .set_offline = qeth_l2_set_offline, | |
1197 | .shutdown = qeth_l2_shutdown, | |
bbcfcdc8 FB |
1198 | .freeze = qeth_l2_pm_suspend, |
1199 | .thaw = qeth_l2_pm_resume, | |
1200 | .restore = qeth_l2_pm_resume, | |
4a71df50 FB |
1201 | }; |
1202 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1203 | ||
1204 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1205 | struct qeth_cmd_buffer *iob) | |
1206 | { | |
1207 | unsigned long flags; | |
1208 | int rc = 0; | |
1209 | ||
d11ba0c4 | 1210 | QETH_DBF_TEXT(TRACE, 5, "osndctrd"); |
4a71df50 FB |
1211 | |
1212 | wait_event(card->wait_q, | |
1213 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1214 | qeth_prepare_control_data(card, len, iob); | |
d11ba0c4 | 1215 | QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); |
4a71df50 FB |
1216 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1217 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1218 | (addr_t) iob, 0, 0); | |
1219 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1220 | if (rc) { | |
14cc21b6 | 1221 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1222 | "ccw_device_start rc = %i\n", rc); |
d11ba0c4 | 1223 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
4a71df50 FB |
1224 | qeth_release_buffer(iob->channel, iob); |
1225 | atomic_set(&card->write.irq_pending, 0); | |
1226 | wake_up(&card->wait_q); | |
1227 | } | |
1228 | return rc; | |
1229 | } | |
1230 | ||
1231 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1232 | struct qeth_cmd_buffer *iob, int data_len) | |
1233 | { | |
1234 | u16 s1, s2; | |
1235 | ||
d11ba0c4 | 1236 | QETH_DBF_TEXT(TRACE, 4, "osndipa"); |
4a71df50 FB |
1237 | |
1238 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1239 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1240 | s2 = (u16)data_len; | |
1241 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1242 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1243 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1244 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1245 | return qeth_osn_send_control_data(card, s1, iob); | |
1246 | } | |
1247 | ||
1248 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1249 | { | |
1250 | struct qeth_cmd_buffer *iob; | |
1251 | struct qeth_card *card; | |
1252 | int rc; | |
1253 | ||
d11ba0c4 | 1254 | QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); |
4a71df50 FB |
1255 | if (!dev) |
1256 | return -ENODEV; | |
509e2562 | 1257 | card = dev->ml_priv; |
4a71df50 FB |
1258 | if (!card) |
1259 | return -ENODEV; | |
1260 | if ((card->state != CARD_STATE_UP) && | |
1261 | (card->state != CARD_STATE_SOFTSETUP)) | |
1262 | return -ENODEV; | |
1263 | iob = qeth_wait_for_buffer(&card->write); | |
1264 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1265 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1266 | return rc; | |
1267 | } | |
1268 | EXPORT_SYMBOL(qeth_osn_assist); | |
1269 | ||
1270 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1271 | int (*assist_cb)(struct net_device *, void *), | |
1272 | int (*data_cb)(struct sk_buff *)) | |
1273 | { | |
1274 | struct qeth_card *card; | |
1275 | ||
d11ba0c4 | 1276 | QETH_DBF_TEXT(TRACE, 2, "osnreg"); |
4a71df50 FB |
1277 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1278 | if (*dev == NULL) | |
1279 | return -ENODEV; | |
509e2562 | 1280 | card = (*dev)->ml_priv; |
4a71df50 FB |
1281 | if (!card) |
1282 | return -ENODEV; | |
1283 | if ((assist_cb == NULL) || (data_cb == NULL)) | |
1284 | return -EINVAL; | |
1285 | card->osn_info.assist_cb = assist_cb; | |
1286 | card->osn_info.data_cb = data_cb; | |
1287 | return 0; | |
1288 | } | |
1289 | EXPORT_SYMBOL(qeth_osn_register); | |
1290 | ||
1291 | void qeth_osn_deregister(struct net_device *dev) | |
1292 | { | |
1293 | struct qeth_card *card; | |
1294 | ||
d11ba0c4 | 1295 | QETH_DBF_TEXT(TRACE, 2, "osndereg"); |
4a71df50 FB |
1296 | if (!dev) |
1297 | return; | |
509e2562 | 1298 | card = dev->ml_priv; |
4a71df50 FB |
1299 | if (!card) |
1300 | return; | |
1301 | card->osn_info.assist_cb = NULL; | |
1302 | card->osn_info.data_cb = NULL; | |
1303 | return; | |
1304 | } | |
1305 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1306 | ||
1307 | module_init(qeth_l2_init); | |
1308 | module_exit(qeth_l2_exit); | |
1309 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1310 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1311 | MODULE_LICENSE("GPL"); |