Commit | Line | Data |
---|---|---|
4a71df50 FB |
1 | /* |
2 | * drivers/s390/net/qeth_l2_main.c | |
3 | * | |
4 | * Copyright IBM Corp. 2007 | |
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> | |
22 | ||
4a71df50 | 23 | #include "qeth_core.h" |
4a71df50 | 24 | |
4a71df50 FB |
25 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
26 | static int qeth_l2_stop(struct net_device *); | |
27 | static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); | |
28 | static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, | |
29 | enum qeth_ipa_cmds, | |
30 | int (*reply_cb) (struct qeth_card *, | |
31 | struct qeth_reply*, | |
32 | unsigned long)); | |
33 | static void qeth_l2_set_multicast_list(struct net_device *); | |
34 | static int qeth_l2_recover(void *); | |
35 | ||
36 | static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
37 | { | |
509e2562 | 38 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
39 | struct mii_ioctl_data *mii_data; |
40 | int rc = 0; | |
41 | ||
42 | if (!card) | |
43 | return -ENODEV; | |
44 | ||
45 | if ((card->state != CARD_STATE_UP) && | |
46 | (card->state != CARD_STATE_SOFTSETUP)) | |
47 | return -ENODEV; | |
48 | ||
49 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
50 | return -EPERM; | |
51 | ||
52 | switch (cmd) { | |
53 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
54 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
55 | break; | |
56 | case SIOC_QETH_GET_CARD_TYPE: | |
57 | if ((card->info.type == QETH_CARD_TYPE_OSAE) && | |
58 | !card->info.guestlan) | |
59 | return 1; | |
60 | return 0; | |
61 | break; | |
62 | case SIOCGMIIPHY: | |
63 | mii_data = if_mii(rq); | |
64 | mii_data->phy_id = 0; | |
65 | break; | |
66 | case SIOCGMIIREG: | |
67 | mii_data = if_mii(rq); | |
68 | if (mii_data->phy_id != 0) | |
69 | rc = -EINVAL; | |
70 | else | |
71 | mii_data->val_out = qeth_mdio_read(dev, | |
72 | mii_data->phy_id, mii_data->reg_num); | |
73 | break; | |
74 | default: | |
75 | rc = -EOPNOTSUPP; | |
76 | } | |
77 | if (rc) | |
d11ba0c4 | 78 | QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); |
4a71df50 FB |
79 | return rc; |
80 | } | |
81 | ||
82 | static int qeth_l2_verify_dev(struct net_device *dev) | |
83 | { | |
84 | struct qeth_card *card; | |
85 | unsigned long flags; | |
86 | int rc = 0; | |
87 | ||
88 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
89 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
90 | if (card->dev == dev) { | |
91 | rc = QETH_REAL_CARD; | |
92 | break; | |
93 | } | |
94 | } | |
95 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
96 | ||
97 | return rc; | |
98 | } | |
99 | ||
100 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) | |
101 | { | |
102 | struct qeth_card *card; | |
103 | struct net_device *ndev; | |
f06f6f32 | 104 | __u16 temp_dev_no; |
4a71df50 | 105 | unsigned long flags; |
f06f6f32 | 106 | struct ccw_dev_id read_devid; |
4a71df50 FB |
107 | |
108 | ndev = NULL; | |
109 | memcpy(&temp_dev_no, read_dev_no, 2); | |
110 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
111 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
112 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
113 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
114 | ndev = card->dev; |
115 | break; | |
116 | } | |
117 | } | |
118 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
119 | return ndev; | |
120 | } | |
121 | ||
122 | static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, | |
123 | struct qeth_reply *reply, | |
124 | unsigned long data) | |
125 | { | |
126 | struct qeth_ipa_cmd *cmd; | |
127 | __u8 *mac; | |
128 | ||
d11ba0c4 | 129 | QETH_DBF_TEXT(TRACE, 2, "L2Sgmacb"); |
4a71df50 FB |
130 | cmd = (struct qeth_ipa_cmd *) data; |
131 | mac = &cmd->data.setdelmac.mac[0]; | |
132 | /* MAC already registered, needed in couple/uncouple case */ | |
133 | if (cmd->hdr.return_code == 0x2005) { | |
7c510e4b JB |
134 | QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
135 | mac, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
136 | cmd->hdr.return_code = 0; |
137 | } | |
138 | if (cmd->hdr.return_code) | |
7c510e4b JB |
139 | QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
140 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
141 | return 0; |
142 | } | |
143 | ||
144 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
145 | { | |
d11ba0c4 | 146 | QETH_DBF_TEXT(TRACE, 2, "L2Sgmac"); |
4a71df50 FB |
147 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
148 | qeth_l2_send_setgroupmac_cb); | |
149 | } | |
150 | ||
151 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
152 | struct qeth_reply *reply, | |
153 | unsigned long data) | |
154 | { | |
155 | struct qeth_ipa_cmd *cmd; | |
156 | __u8 *mac; | |
157 | ||
d11ba0c4 | 158 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmacb"); |
4a71df50 FB |
159 | cmd = (struct qeth_ipa_cmd *) data; |
160 | mac = &cmd->data.setdelmac.mac[0]; | |
161 | if (cmd->hdr.return_code) | |
7c510e4b JB |
162 | QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
163 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
164 | return 0; |
165 | } | |
166 | ||
167 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
168 | { | |
d11ba0c4 | 169 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmac"); |
4a71df50 FB |
170 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
171 | qeth_l2_send_delgroupmac_cb); | |
172 | } | |
173 | ||
7db2266a | 174 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
4a71df50 FB |
175 | { |
176 | struct qeth_mc_mac *mc; | |
7db2266a | 177 | int rc; |
4a71df50 FB |
178 | |
179 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
180 | ||
14cc21b6 | 181 | if (!mc) |
4a71df50 | 182 | return; |
4a71df50 FB |
183 | |
184 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
185 | mc->mc_addrlen = OSA_ADDR_LEN; | |
7db2266a FB |
186 | mc->is_vmac = vmac; |
187 | ||
188 | if (vmac) { | |
189 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, | |
190 | NULL); | |
191 | } else { | |
192 | rc = qeth_l2_send_setgroupmac(card, mac); | |
193 | } | |
4a71df50 | 194 | |
7db2266a | 195 | if (!rc) |
4a71df50 FB |
196 | list_add_tail(&mc->list, &card->mc_list); |
197 | else | |
198 | kfree(mc); | |
199 | } | |
200 | ||
201 | static void qeth_l2_del_all_mc(struct qeth_card *card) | |
202 | { | |
203 | struct qeth_mc_mac *mc, *tmp; | |
204 | ||
205 | spin_lock_bh(&card->mclock); | |
206 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
7db2266a FB |
207 | if (mc->is_vmac) |
208 | qeth_l2_send_setdelmac(card, mc->mc_addr, | |
209 | IPA_CMD_DELVMAC, NULL); | |
210 | else | |
211 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
4a71df50 FB |
212 | list_del(&mc->list); |
213 | kfree(mc); | |
214 | } | |
215 | spin_unlock_bh(&card->mclock); | |
216 | } | |
217 | ||
218 | static void qeth_l2_get_packet_type(struct qeth_card *card, | |
219 | struct qeth_hdr *hdr, struct sk_buff *skb) | |
220 | { | |
221 | __u16 hdr_mac; | |
222 | ||
223 | if (!memcmp(skb->data + QETH_HEADER_SIZE, | |
224 | skb->dev->broadcast, 6)) { | |
225 | /* broadcast? */ | |
226 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
227 | return; | |
228 | } | |
229 | hdr_mac = *((__u16 *)skb->data); | |
230 | /* tr multicast? */ | |
231 | switch (card->info.link_type) { | |
232 | case QETH_LINK_TYPE_HSTR: | |
233 | case QETH_LINK_TYPE_LANE_TR: | |
234 | if ((hdr_mac == QETH_TR_MAC_NC) || | |
235 | (hdr_mac == QETH_TR_MAC_C)) | |
236 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
237 | else | |
238 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
239 | break; | |
240 | /* eth or so multicast? */ | |
241 | default: | |
242 | if ((hdr_mac == QETH_ETH_MAC_V4) || | |
243 | (hdr_mac == QETH_ETH_MAC_V6)) | |
244 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
245 | else | |
246 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
247 | } | |
248 | } | |
249 | ||
250 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
251 | struct sk_buff *skb, int ipv, int cast_type) | |
252 | { | |
683d718a | 253 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
254 | |
255 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
256 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
257 | ||
258 | /* set byte byte 3 to casting flags */ | |
259 | if (cast_type == RTN_MULTICAST) | |
260 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
261 | else if (cast_type == RTN_BROADCAST) | |
262 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
263 | else | |
264 | qeth_l2_get_packet_type(card, hdr, skb); | |
265 | ||
266 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
267 | /* VSWITCH relies on the VLAN | |
268 | * information to be present in | |
269 | * the QDIO header */ | |
270 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
271 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
272 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
273 | } | |
274 | } | |
275 | ||
276 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
277 | struct qeth_reply *reply, unsigned long data) | |
278 | { | |
279 | struct qeth_ipa_cmd *cmd; | |
280 | ||
d11ba0c4 | 281 | QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); |
4a71df50 FB |
282 | cmd = (struct qeth_ipa_cmd *) data; |
283 | if (cmd->hdr.return_code) { | |
14cc21b6 | 284 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
285 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
286 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
d11ba0c4 PT |
287 | QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); |
288 | QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); | |
289 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
290 | } |
291 | return 0; | |
292 | } | |
293 | ||
294 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
295 | enum qeth_ipa_cmds ipacmd) | |
296 | { | |
297 | struct qeth_ipa_cmd *cmd; | |
298 | struct qeth_cmd_buffer *iob; | |
299 | ||
d11ba0c4 | 300 | QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
301 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
302 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
303 | cmd->data.setdelvlan.vlan_id = i; | |
304 | return qeth_send_ipa_cmd(card, iob, | |
305 | qeth_l2_send_setdelvlan_cb, NULL); | |
306 | } | |
307 | ||
308 | static void qeth_l2_process_vlans(struct qeth_card *card, int clear) | |
309 | { | |
310 | struct qeth_vlan_vid *id; | |
d11ba0c4 | 311 | QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); |
4a71df50 FB |
312 | spin_lock_bh(&card->vlanlock); |
313 | list_for_each_entry(id, &card->vid_list, list) { | |
314 | if (clear) | |
315 | qeth_l2_send_setdelvlan(card, id->vid, | |
316 | IPA_CMD_DELVLAN); | |
317 | else | |
318 | qeth_l2_send_setdelvlan(card, id->vid, | |
319 | IPA_CMD_SETVLAN); | |
320 | } | |
321 | spin_unlock_bh(&card->vlanlock); | |
322 | } | |
323 | ||
324 | static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
325 | { | |
509e2562 | 326 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
327 | struct qeth_vlan_vid *id; |
328 | ||
d11ba0c4 | 329 | QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); |
8e98ac48 UB |
330 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
331 | QETH_DBF_TEXT(TRACE, 3, "aidREC"); | |
332 | return; | |
333 | } | |
4a71df50 FB |
334 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
335 | if (id) { | |
336 | id->vid = vid; | |
337 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
338 | spin_lock_bh(&card->vlanlock); | |
339 | list_add_tail(&id->list, &card->vid_list); | |
340 | spin_unlock_bh(&card->vlanlock); | |
4a71df50 FB |
341 | } |
342 | } | |
343 | ||
344 | static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
345 | { | |
346 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 347 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 348 | |
d11ba0c4 | 349 | QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); |
8e98ac48 UB |
350 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
351 | QETH_DBF_TEXT(TRACE, 3, "kidREC"); | |
352 | return; | |
353 | } | |
4a71df50 FB |
354 | spin_lock_bh(&card->vlanlock); |
355 | list_for_each_entry(id, &card->vid_list, list) { | |
356 | if (id->vid == vid) { | |
357 | list_del(&id->list); | |
358 | tmpid = id; | |
359 | break; | |
360 | } | |
361 | } | |
362 | spin_unlock_bh(&card->vlanlock); | |
363 | if (tmpid) { | |
364 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
365 | kfree(tmpid); | |
366 | } | |
367 | qeth_l2_set_multicast_list(card->dev); | |
368 | } | |
369 | ||
370 | static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) | |
371 | { | |
372 | int rc = 0; | |
373 | ||
d11ba0c4 PT |
374 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
375 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
376 | |
377 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
378 | if (card->read.state == CH_STATE_UP && |
379 | card->write.state == CH_STATE_UP && | |
380 | (card->state == CARD_STATE_UP)) { | |
381 | if (recovery_mode && | |
382 | card->info.type != QETH_CARD_TYPE_OSN) { | |
383 | qeth_l2_stop(card->dev); | |
384 | } else { | |
385 | rtnl_lock(); | |
386 | dev_close(card->dev); | |
387 | rtnl_unlock(); | |
388 | } | |
932e1583 KDW |
389 | if (!card->use_hard_stop || |
390 | recovery_mode) { | |
4a71df50 FB |
391 | __u8 *mac = &card->dev->dev_addr[0]; |
392 | rc = qeth_l2_send_delmac(card, mac); | |
d11ba0c4 | 393 | QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); |
4a71df50 FB |
394 | } |
395 | card->state = CARD_STATE_SOFTSETUP; | |
396 | } | |
397 | if (card->state == CARD_STATE_SOFTSETUP) { | |
398 | qeth_l2_process_vlans(card, 1); | |
932e1583 KDW |
399 | if (!card->use_hard_stop || |
400 | recovery_mode) | |
28a7e4c9 | 401 | qeth_l2_del_all_mc(card); |
4a71df50 FB |
402 | qeth_clear_ipacmd_list(card); |
403 | card->state = CARD_STATE_HARDSETUP; | |
404 | } | |
405 | if (card->state == CARD_STATE_HARDSETUP) { | |
406 | qeth_qdio_clear_card(card, 0); | |
407 | qeth_clear_qdio_buffers(card); | |
408 | qeth_clear_working_pool_list(card); | |
409 | card->state = CARD_STATE_DOWN; | |
410 | } | |
411 | if (card->state == CARD_STATE_DOWN) { | |
412 | qeth_clear_cmd_buffers(&card->read); | |
413 | qeth_clear_cmd_buffers(&card->write); | |
414 | } | |
415 | card->use_hard_stop = 0; | |
416 | return rc; | |
417 | } | |
418 | ||
419 | static void qeth_l2_process_inbound_buffer(struct qeth_card *card, | |
420 | struct qeth_qdio_buffer *buf, int index) | |
421 | { | |
422 | struct qdio_buffer_element *element; | |
423 | struct sk_buff *skb; | |
424 | struct qeth_hdr *hdr; | |
425 | int offset; | |
426 | unsigned int len; | |
427 | ||
428 | /* get first element of current buffer */ | |
429 | element = (struct qdio_buffer_element *)&buf->buffer->element[0]; | |
430 | offset = 0; | |
431 | if (card->options.performance_stats) | |
432 | card->perf_stats.bufs_rec++; | |
433 | while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, | |
434 | &offset, &hdr))) { | |
435 | skb->dev = card->dev; | |
436 | /* is device UP ? */ | |
437 | if (!(card->dev->flags & IFF_UP)) { | |
438 | dev_kfree_skb_any(skb); | |
439 | continue; | |
440 | } | |
441 | ||
442 | switch (hdr->hdr.l2.id) { | |
443 | case QETH_HEADER_TYPE_LAYER2: | |
444 | skb->pkt_type = PACKET_HOST; | |
445 | skb->protocol = eth_type_trans(skb, skb->dev); | |
446 | if (card->options.checksum_type == NO_CHECKSUMMING) | |
447 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
448 | else | |
449 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
450 | if (skb->protocol == htons(ETH_P_802_2)) |
451 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 FB |
452 | len = skb->len; |
453 | netif_rx(skb); | |
454 | break; | |
455 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
456 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
457 | skb_push(skb, sizeof(struct qeth_hdr)); | |
458 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 459 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
460 | len = skb->len; |
461 | card->osn_info.data_cb(skb); | |
462 | break; | |
463 | } | |
464 | /* else unknown */ | |
4a71df50 FB |
465 | default: |
466 | dev_kfree_skb_any(skb); | |
d11ba0c4 PT |
467 | QETH_DBF_TEXT(TRACE, 3, "inbunkno"); |
468 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); | |
4a71df50 FB |
469 | continue; |
470 | } | |
471 | card->dev->last_rx = jiffies; | |
472 | card->stats.rx_packets++; | |
473 | card->stats.rx_bytes += len; | |
474 | } | |
475 | } | |
476 | ||
477 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
478 | enum qeth_ipa_cmds ipacmd, | |
479 | int (*reply_cb) (struct qeth_card *, | |
480 | struct qeth_reply*, | |
481 | unsigned long)) | |
482 | { | |
483 | struct qeth_ipa_cmd *cmd; | |
484 | struct qeth_cmd_buffer *iob; | |
485 | ||
d11ba0c4 | 486 | QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); |
4a71df50 FB |
487 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
488 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
489 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
490 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
491 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
492 | } | |
493 | ||
494 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
495 | struct qeth_reply *reply, | |
496 | unsigned long data) | |
497 | { | |
498 | struct qeth_ipa_cmd *cmd; | |
499 | ||
d11ba0c4 | 500 | QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); |
4a71df50 FB |
501 | cmd = (struct qeth_ipa_cmd *) data; |
502 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 503 | QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 FB |
504 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
505 | cmd->hdr.return_code = -EIO; | |
506 | } else { | |
507 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
508 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
509 | OSA_ADDR_LEN); | |
74eacdb9 FB |
510 | dev_info(&card->gdev->dev, |
511 | "MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " | |
512 | "successfully registered on device %s\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 | card->dev->name); | |
4a71df50 FB |
517 | } |
518 | return 0; | |
519 | } | |
520 | ||
521 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
522 | { | |
d11ba0c4 | 523 | QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); |
4a71df50 FB |
524 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
525 | qeth_l2_send_setmac_cb); | |
526 | } | |
527 | ||
528 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
529 | struct qeth_reply *reply, | |
530 | unsigned long data) | |
531 | { | |
532 | struct qeth_ipa_cmd *cmd; | |
533 | ||
d11ba0c4 | 534 | QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); |
4a71df50 FB |
535 | cmd = (struct qeth_ipa_cmd *) data; |
536 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 537 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
538 | cmd->hdr.return_code = -EIO; |
539 | return 0; | |
540 | } | |
541 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
547 | { | |
d11ba0c4 | 548 | QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); |
4a71df50 FB |
549 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
550 | return 0; | |
551 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
552 | qeth_l2_send_delmac_cb); | |
553 | } | |
554 | ||
555 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
556 | { | |
557 | int rc = 0; | |
558 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
559 | ||
d11ba0c4 PT |
560 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
561 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
562 | |
563 | rc = qeth_query_setadapterparms(card); | |
564 | if (rc) { | |
14cc21b6 FB |
565 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
566 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
567 | } |
568 | ||
f1d58672 UB |
569 | if ((card->info.type == QETH_CARD_TYPE_IQD) || |
570 | (card->info.guestlan)) { | |
4a71df50 FB |
571 | rc = qeth_setadpparms_change_macaddr(card); |
572 | if (rc) { | |
14cc21b6 FB |
573 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
574 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 575 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
576 | return rc; |
577 | } | |
d11ba0c4 | 578 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
579 | } else { |
580 | random_ether_addr(card->dev->dev_addr); | |
581 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
582 | } | |
583 | return 0; | |
584 | } | |
585 | ||
586 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
587 | { | |
588 | struct sockaddr *addr = p; | |
509e2562 | 589 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
590 | int rc = 0; |
591 | ||
d11ba0c4 | 592 | QETH_DBF_TEXT(TRACE, 3, "setmac"); |
4a71df50 FB |
593 | |
594 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
d11ba0c4 | 595 | QETH_DBF_TEXT(TRACE, 3, "setmcINV"); |
4a71df50 FB |
596 | return -EOPNOTSUPP; |
597 | } | |
598 | ||
599 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
d11ba0c4 | 600 | QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); |
4a71df50 FB |
601 | return -EOPNOTSUPP; |
602 | } | |
d11ba0c4 PT |
603 | QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); |
604 | QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); | |
8e98ac48 UB |
605 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
606 | QETH_DBF_TEXT(TRACE, 3, "setmcREC"); | |
607 | return -ERESTARTSYS; | |
608 | } | |
4a71df50 FB |
609 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
610 | if (!rc) | |
611 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
612 | return rc; | |
613 | } | |
614 | ||
615 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
616 | { | |
509e2562 | 617 | struct qeth_card *card = dev->ml_priv; |
7db2266a | 618 | struct dev_addr_list *dm; |
4a71df50 FB |
619 | |
620 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
621 | return ; | |
622 | ||
d11ba0c4 | 623 | QETH_DBF_TEXT(TRACE, 3, "setmulti"); |
8e98ac48 UB |
624 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
625 | (card->state != CARD_STATE_UP)) | |
626 | return; | |
4a71df50 FB |
627 | qeth_l2_del_all_mc(card); |
628 | spin_lock_bh(&card->mclock); | |
629 | for (dm = dev->mc_list; dm; dm = dm->next) | |
7db2266a FB |
630 | qeth_l2_add_mc(card, dm->da_addr, 0); |
631 | ||
632 | for (dm = dev->uc_list; dm; dm = dm->next) | |
633 | qeth_l2_add_mc(card, dm->da_addr, 1); | |
634 | ||
4a71df50 FB |
635 | spin_unlock_bh(&card->mclock); |
636 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
637 | return; | |
638 | qeth_setadp_promisc_mode(card); | |
639 | } | |
640 | ||
641 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
642 | { | |
643 | int rc; | |
644 | struct qeth_hdr *hdr = NULL; | |
645 | int elements = 0; | |
509e2562 | 646 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
647 | struct sk_buff *new_skb = skb; |
648 | int ipv = qeth_get_ip_version(skb); | |
649 | int cast_type = qeth_get_cast_type(card, skb); | |
650 | struct qeth_qdio_out_q *queue = card->qdio.out_qs | |
651 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
652 | int tx_bytes = skb->len; | |
683d718a FB |
653 | int data_offset = -1; |
654 | int elements_needed = 0; | |
655 | int hd_len = 0; | |
4a71df50 | 656 | |
4a71df50 FB |
657 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
658 | card->stats.tx_carrier_errors++; | |
659 | goto tx_drop; | |
660 | } | |
661 | ||
662 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
663 | (skb->protocol == htons(ETH_P_IPV6))) | |
664 | goto tx_drop; | |
665 | ||
666 | if (card->options.performance_stats) { | |
667 | card->perf_stats.outbound_cnt++; | |
668 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
669 | } | |
670 | netif_stop_queue(dev); | |
671 | ||
4a71df50 FB |
672 | if (card->info.type == QETH_CARD_TYPE_OSN) |
673 | hdr = (struct qeth_hdr *)skb->data; | |
674 | else { | |
64ef8957 | 675 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
676 | new_skb = skb; |
677 | data_offset = ETH_HLEN; | |
678 | hd_len = ETH_HLEN; | |
679 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
680 | GFP_ATOMIC); | |
681 | if (!hdr) | |
682 | goto tx_drop; | |
683 | elements_needed++; | |
684 | skb_reset_mac_header(new_skb); | |
685 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
686 | hdr->hdr.l2.pkt_length = new_skb->len; | |
687 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
688 | skb_mac_header(new_skb), ETH_HLEN); | |
689 | } else { | |
690 | /* create a clone with writeable headroom */ | |
691 | new_skb = skb_realloc_headroom(skb, | |
692 | sizeof(struct qeth_hdr)); | |
693 | if (!new_skb) | |
694 | goto tx_drop; | |
695 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 696 | sizeof(struct qeth_hdr)); |
683d718a FB |
697 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
698 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
699 | } | |
4a71df50 FB |
700 | } |
701 | ||
64ef8957 | 702 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 703 | elements_needed); |
64ef8957 FB |
704 | if (!elements) { |
705 | if (data_offset >= 0) | |
706 | kmem_cache_free(qeth_core_header_cache, hdr); | |
707 | goto tx_drop; | |
f61a0d05 | 708 | } |
4a71df50 FB |
709 | |
710 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
711 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, | |
64ef8957 | 712 | elements); |
4a71df50 FB |
713 | else |
714 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, | |
64ef8957 | 715 | elements, data_offset, hd_len); |
4a71df50 FB |
716 | if (!rc) { |
717 | card->stats.tx_packets++; | |
718 | card->stats.tx_bytes += tx_bytes; | |
719 | if (new_skb != skb) | |
720 | dev_kfree_skb_any(skb); | |
4a71df50 | 721 | } else { |
683d718a FB |
722 | if (data_offset >= 0) |
723 | kmem_cache_free(qeth_core_header_cache, hdr); | |
724 | ||
4a71df50 FB |
725 | if (rc == -EBUSY) { |
726 | if (new_skb != skb) | |
727 | dev_kfree_skb_any(new_skb); | |
728 | return NETDEV_TX_BUSY; | |
729 | } else | |
730 | goto tx_drop; | |
731 | } | |
732 | ||
733 | netif_wake_queue(dev); | |
734 | if (card->options.performance_stats) | |
735 | card->perf_stats.outbound_time += qeth_get_micros() - | |
736 | card->perf_stats.outbound_start_time; | |
737 | return rc; | |
738 | ||
739 | tx_drop: | |
740 | card->stats.tx_dropped++; | |
741 | card->stats.tx_errors++; | |
742 | if ((new_skb != skb) && new_skb) | |
743 | dev_kfree_skb_any(new_skb); | |
744 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 745 | netif_wake_queue(dev); |
4a71df50 FB |
746 | return NETDEV_TX_OK; |
747 | } | |
748 | ||
749 | static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, | |
779e6e1c | 750 | unsigned int qdio_err, unsigned int queue, |
4a71df50 FB |
751 | int first_element, int count, unsigned long card_ptr) |
752 | { | |
753 | struct net_device *net_dev; | |
754 | struct qeth_card *card; | |
755 | struct qeth_qdio_buffer *buffer; | |
756 | int index; | |
757 | int i; | |
758 | ||
4a71df50 FB |
759 | card = (struct qeth_card *) card_ptr; |
760 | net_dev = card->dev; | |
761 | if (card->options.performance_stats) { | |
762 | card->perf_stats.inbound_cnt++; | |
763 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
764 | } | |
779e6e1c JG |
765 | if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
766 | QETH_DBF_TEXT(TRACE, 1, "qdinchk"); | |
767 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
768 | QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, | |
769 | count); | |
770 | QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); | |
771 | qeth_schedule_recovery(card); | |
772 | return; | |
4a71df50 FB |
773 | } |
774 | for (i = first_element; i < (first_element + count); ++i) { | |
775 | index = i % QDIO_MAX_BUFFERS_PER_Q; | |
776 | buffer = &card->qdio.in_q->bufs[index]; | |
779e6e1c JG |
777 | if (!(qdio_err && |
778 | qeth_check_qdio_errors(buffer->buffer, qdio_err, "qinerr"))) | |
4a71df50 FB |
779 | qeth_l2_process_inbound_buffer(card, buffer, index); |
780 | /* clear buffer and give back to hardware */ | |
781 | qeth_put_buffer_pool_entry(card, buffer->pool_entry); | |
782 | qeth_queue_input_buffer(card, index); | |
783 | } | |
784 | if (card->options.performance_stats) | |
785 | card->perf_stats.inbound_time += qeth_get_micros() - | |
786 | card->perf_stats.inbound_start_time; | |
787 | } | |
788 | ||
789 | static int qeth_l2_open(struct net_device *dev) | |
790 | { | |
509e2562 | 791 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 792 | |
d11ba0c4 | 793 | QETH_DBF_TEXT(TRACE, 4, "qethopen"); |
4a71df50 FB |
794 | if (card->state != CARD_STATE_SOFTSETUP) |
795 | return -ENODEV; | |
796 | ||
797 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
798 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
d11ba0c4 | 799 | QETH_DBF_TEXT(TRACE, 4, "nomacadr"); |
4a71df50 FB |
800 | return -EPERM; |
801 | } | |
802 | card->data.state = CH_STATE_UP; | |
803 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
804 | netif_start_queue(dev); |
805 | ||
806 | if (!card->lan_online && netif_carrier_ok(dev)) | |
807 | netif_carrier_off(dev); | |
808 | return 0; | |
809 | } | |
810 | ||
811 | ||
812 | static int qeth_l2_stop(struct net_device *dev) | |
813 | { | |
509e2562 | 814 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 815 | |
d11ba0c4 | 816 | QETH_DBF_TEXT(TRACE, 4, "qethstop"); |
4a71df50 | 817 | netif_tx_disable(dev); |
4a71df50 FB |
818 | if (card->state == CARD_STATE_UP) |
819 | card->state = CARD_STATE_SOFTSETUP; | |
820 | return 0; | |
821 | } | |
822 | ||
823 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
824 | { | |
825 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
826 | ||
827 | INIT_LIST_HEAD(&card->vid_list); | |
828 | INIT_LIST_HEAD(&card->mc_list); | |
829 | card->options.layer2 = 1; | |
830 | card->discipline.input_handler = (qdio_handler_t *) | |
831 | qeth_l2_qdio_input_handler; | |
832 | card->discipline.output_handler = (qdio_handler_t *) | |
833 | qeth_qdio_output_handler; | |
834 | card->discipline.recover = qeth_l2_recover; | |
835 | return 0; | |
836 | } | |
837 | ||
838 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
839 | { | |
840 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
841 | ||
f2148565 | 842 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
843 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
844 | ||
845 | if (cgdev->state == CCWGROUP_ONLINE) { | |
846 | card->use_hard_stop = 1; | |
847 | qeth_l2_set_offline(cgdev); | |
848 | } | |
849 | ||
850 | if (card->dev) { | |
851 | unregister_netdev(card->dev); | |
852 | card->dev = NULL; | |
853 | } | |
854 | ||
855 | qeth_l2_del_all_mc(card); | |
856 | return; | |
857 | } | |
858 | ||
859 | static struct ethtool_ops qeth_l2_ethtool_ops = { | |
860 | .get_link = ethtool_op_get_link, | |
4a71df50 FB |
861 | .get_strings = qeth_core_get_strings, |
862 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
863 | .get_stats_count = qeth_core_get_stats_count, | |
864 | .get_drvinfo = qeth_core_get_drvinfo, | |
3f9975aa | 865 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
866 | }; |
867 | ||
868 | static struct ethtool_ops qeth_l2_osn_ops = { | |
869 | .get_strings = qeth_core_get_strings, | |
870 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
871 | .get_stats_count = qeth_core_get_stats_count, | |
872 | .get_drvinfo = qeth_core_get_drvinfo, | |
873 | }; | |
874 | ||
3d58cefd | 875 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
876 | .ndo_open = qeth_l2_open, |
877 | .ndo_stop = qeth_l2_stop, | |
878 | .ndo_get_stats = qeth_get_stats, | |
879 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
880 | .ndo_validate_addr = eth_validate_addr, | |
881 | .ndo_set_multicast_list = qeth_l2_set_multicast_list, | |
882 | .ndo_do_ioctl = qeth_l2_do_ioctl, | |
883 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
884 | .ndo_change_mtu = qeth_change_mtu, | |
885 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
886 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
887 | .ndo_tx_timeout = qeth_tx_timeout, | |
888 | }; | |
889 | ||
4a71df50 FB |
890 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
891 | { | |
892 | switch (card->info.type) { | |
893 | case QETH_CARD_TYPE_OSAE: | |
894 | card->dev = alloc_etherdev(0); | |
895 | break; | |
896 | case QETH_CARD_TYPE_IQD: | |
897 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
898 | break; | |
899 | case QETH_CARD_TYPE_OSN: | |
900 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
901 | card->dev->flags |= IFF_NOARP; | |
902 | break; | |
903 | default: | |
904 | card->dev = alloc_etherdev(0); | |
905 | } | |
906 | ||
907 | if (!card->dev) | |
908 | return -ENODEV; | |
909 | ||
509e2562 | 910 | card->dev->ml_priv = card; |
4a71df50 | 911 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 912 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 913 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
914 | if (card->info.type != QETH_CARD_TYPE_OSN) |
915 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
916 | else | |
917 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
918 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
919 | card->info.broadcast_capable = 1; | |
920 | qeth_l2_request_initial_mac(card); | |
921 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
922 | return register_netdev(card->dev); | |
923 | } | |
924 | ||
925 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
926 | { | |
927 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
928 | int rc = 0; | |
929 | enum qeth_card_states recover_flag; | |
930 | ||
931 | BUG_ON(!card); | |
d11ba0c4 PT |
932 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
933 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
934 | |
935 | qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); | |
4a71df50 FB |
936 | recover_flag = card->state; |
937 | rc = ccw_device_set_online(CARD_RDEV(card)); | |
938 | if (rc) { | |
d11ba0c4 | 939 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
940 | return -EIO; |
941 | } | |
942 | rc = ccw_device_set_online(CARD_WDEV(card)); | |
943 | if (rc) { | |
d11ba0c4 | 944 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
945 | return -EIO; |
946 | } | |
947 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
948 | if (rc) { | |
d11ba0c4 | 949 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
950 | return -EIO; |
951 | } | |
952 | ||
953 | rc = qeth_core_hardsetup_card(card); | |
954 | if (rc) { | |
d11ba0c4 | 955 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
956 | goto out_remove; |
957 | } | |
958 | ||
959 | if (!card->dev && qeth_l2_setup_netdev(card)) | |
960 | goto out_remove; | |
961 | ||
962 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
963 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
964 | ||
965 | card->state = CARD_STATE_HARDSETUP; | |
966 | qeth_print_status_message(card); | |
967 | ||
968 | /* softsetup */ | |
d11ba0c4 | 969 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
970 | |
971 | rc = qeth_send_startlan(card); | |
972 | if (rc) { | |
d11ba0c4 | 973 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 974 | if (rc == 0xe080) { |
74eacdb9 FB |
975 | dev_warn(&card->gdev->dev, |
976 | "The LAN is offline\n"); | |
4a71df50 | 977 | card->lan_online = 0; |
f2148565 | 978 | return 0; |
4a71df50 | 979 | } |
f2148565 | 980 | goto out_remove; |
4a71df50 FB |
981 | } else |
982 | card->lan_online = 1; | |
983 | ||
984 | if (card->info.type != QETH_CARD_TYPE_OSN) { | |
985 | qeth_set_large_send(card, card->options.large_send); | |
986 | qeth_l2_process_vlans(card, 0); | |
987 | } | |
988 | ||
989 | netif_tx_disable(card->dev); | |
990 | ||
991 | rc = qeth_init_qdio_queues(card); | |
992 | if (rc) { | |
d11ba0c4 | 993 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
994 | goto out_remove; |
995 | } | |
996 | card->state = CARD_STATE_SOFTSETUP; | |
997 | netif_carrier_on(card->dev); | |
998 | ||
999 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1000 | if (recover_flag == CARD_STATE_RECOVER) { | |
1001 | if (recovery_mode && | |
1002 | card->info.type != QETH_CARD_TYPE_OSN) { | |
1003 | qeth_l2_open(card->dev); | |
1004 | } else { | |
1005 | rtnl_lock(); | |
1006 | dev_open(card->dev); | |
1007 | rtnl_unlock(); | |
1008 | } | |
1009 | /* this also sets saved unicast addresses */ | |
1010 | qeth_l2_set_multicast_list(card->dev); | |
1011 | } | |
1012 | /* let user_space know that device is online */ | |
1013 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
1014 | return 0; | |
1015 | out_remove: | |
1016 | card->use_hard_stop = 1; | |
1017 | qeth_l2_stop_card(card, 0); | |
1018 | ccw_device_set_offline(CARD_DDEV(card)); | |
1019 | ccw_device_set_offline(CARD_WDEV(card)); | |
1020 | ccw_device_set_offline(CARD_RDEV(card)); | |
1021 | if (recover_flag == CARD_STATE_RECOVER) | |
1022 | card->state = CARD_STATE_RECOVER; | |
1023 | else | |
1024 | card->state = CARD_STATE_DOWN; | |
1025 | return -ENODEV; | |
1026 | } | |
1027 | ||
1028 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1029 | { | |
1030 | return __qeth_l2_set_online(gdev, 0); | |
1031 | } | |
1032 | ||
1033 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1034 | int recovery_mode) | |
1035 | { | |
1036 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1037 | int rc = 0, rc2 = 0, rc3 = 0; | |
1038 | enum qeth_card_states recover_flag; | |
1039 | ||
d11ba0c4 PT |
1040 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1041 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1042 | |
1043 | if (card->dev && netif_carrier_ok(card->dev)) | |
1044 | netif_carrier_off(card->dev); | |
1045 | recover_flag = card->state; | |
0f5623c9 | 1046 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1047 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1048 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1049 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1050 | if (!rc) | |
1051 | rc = (rc2) ? rc2 : rc3; | |
1052 | if (rc) | |
d11ba0c4 | 1053 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1054 | if (recover_flag == CARD_STATE_UP) |
1055 | card->state = CARD_STATE_RECOVER; | |
1056 | /* let user_space know that device is offline */ | |
1057 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1062 | { | |
1063 | return __qeth_l2_set_offline(cgdev, 0); | |
1064 | } | |
1065 | ||
1066 | static int qeth_l2_recover(void *ptr) | |
1067 | { | |
1068 | struct qeth_card *card; | |
1069 | int rc = 0; | |
1070 | ||
1071 | card = (struct qeth_card *) ptr; | |
d11ba0c4 PT |
1072 | QETH_DBF_TEXT(TRACE, 2, "recover1"); |
1073 | QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1074 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1075 | return 0; | |
d11ba0c4 | 1076 | QETH_DBF_TEXT(TRACE, 2, "recover2"); |
74eacdb9 FB |
1077 | dev_warn(&card->gdev->dev, |
1078 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1079 | card->use_hard_stop = 1; |
1080 | __qeth_l2_set_offline(card->gdev, 1); | |
1081 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1082 | /* don't run another scheduled recovery */ | |
1083 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
1084 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
1085 | if (!rc) | |
74eacdb9 FB |
1086 | dev_info(&card->gdev->dev, |
1087 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1088 | else { |
fc9c2460 UB |
1089 | if (card->dev) { |
1090 | rtnl_lock(); | |
1091 | dev_close(card->dev); | |
1092 | rtnl_unlock(); | |
1093 | } | |
74eacdb9 FB |
1094 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1095 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1096 | } |
4a71df50 FB |
1097 | return 0; |
1098 | } | |
1099 | ||
1100 | static int __init qeth_l2_init(void) | |
1101 | { | |
74eacdb9 | 1102 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1103 | return 0; |
1104 | } | |
1105 | ||
1106 | static void __exit qeth_l2_exit(void) | |
1107 | { | |
74eacdb9 | 1108 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1109 | } |
1110 | ||
1111 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1112 | { | |
1113 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1114 | qeth_qdio_clear_card(card, 0); | |
1115 | qeth_clear_qdio_buffers(card); | |
1116 | } | |
1117 | ||
1118 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { | |
1119 | .probe = qeth_l2_probe_device, | |
1120 | .remove = qeth_l2_remove_device, | |
1121 | .set_online = qeth_l2_set_online, | |
1122 | .set_offline = qeth_l2_set_offline, | |
1123 | .shutdown = qeth_l2_shutdown, | |
1124 | }; | |
1125 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1126 | ||
1127 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1128 | struct qeth_cmd_buffer *iob) | |
1129 | { | |
1130 | unsigned long flags; | |
1131 | int rc = 0; | |
1132 | ||
d11ba0c4 | 1133 | QETH_DBF_TEXT(TRACE, 5, "osndctrd"); |
4a71df50 FB |
1134 | |
1135 | wait_event(card->wait_q, | |
1136 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1137 | qeth_prepare_control_data(card, len, iob); | |
d11ba0c4 | 1138 | QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); |
4a71df50 FB |
1139 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1140 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1141 | (addr_t) iob, 0, 0); | |
1142 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1143 | if (rc) { | |
14cc21b6 | 1144 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1145 | "ccw_device_start rc = %i\n", rc); |
d11ba0c4 | 1146 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
4a71df50 FB |
1147 | qeth_release_buffer(iob->channel, iob); |
1148 | atomic_set(&card->write.irq_pending, 0); | |
1149 | wake_up(&card->wait_q); | |
1150 | } | |
1151 | return rc; | |
1152 | } | |
1153 | ||
1154 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1155 | struct qeth_cmd_buffer *iob, int data_len) | |
1156 | { | |
1157 | u16 s1, s2; | |
1158 | ||
d11ba0c4 | 1159 | QETH_DBF_TEXT(TRACE, 4, "osndipa"); |
4a71df50 FB |
1160 | |
1161 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1162 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1163 | s2 = (u16)data_len; | |
1164 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1165 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1166 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1167 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1168 | return qeth_osn_send_control_data(card, s1, iob); | |
1169 | } | |
1170 | ||
1171 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1172 | { | |
1173 | struct qeth_cmd_buffer *iob; | |
1174 | struct qeth_card *card; | |
1175 | int rc; | |
1176 | ||
d11ba0c4 | 1177 | QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); |
4a71df50 FB |
1178 | if (!dev) |
1179 | return -ENODEV; | |
509e2562 | 1180 | card = dev->ml_priv; |
4a71df50 FB |
1181 | if (!card) |
1182 | return -ENODEV; | |
1183 | if ((card->state != CARD_STATE_UP) && | |
1184 | (card->state != CARD_STATE_SOFTSETUP)) | |
1185 | return -ENODEV; | |
1186 | iob = qeth_wait_for_buffer(&card->write); | |
1187 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1188 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1189 | return rc; | |
1190 | } | |
1191 | EXPORT_SYMBOL(qeth_osn_assist); | |
1192 | ||
1193 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1194 | int (*assist_cb)(struct net_device *, void *), | |
1195 | int (*data_cb)(struct sk_buff *)) | |
1196 | { | |
1197 | struct qeth_card *card; | |
1198 | ||
d11ba0c4 | 1199 | QETH_DBF_TEXT(TRACE, 2, "osnreg"); |
4a71df50 FB |
1200 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1201 | if (*dev == NULL) | |
1202 | return -ENODEV; | |
509e2562 | 1203 | card = (*dev)->ml_priv; |
4a71df50 FB |
1204 | if (!card) |
1205 | return -ENODEV; | |
1206 | if ((assist_cb == NULL) || (data_cb == NULL)) | |
1207 | return -EINVAL; | |
1208 | card->osn_info.assist_cb = assist_cb; | |
1209 | card->osn_info.data_cb = data_cb; | |
1210 | return 0; | |
1211 | } | |
1212 | EXPORT_SYMBOL(qeth_osn_register); | |
1213 | ||
1214 | void qeth_osn_deregister(struct net_device *dev) | |
1215 | { | |
1216 | struct qeth_card *card; | |
1217 | ||
d11ba0c4 | 1218 | QETH_DBF_TEXT(TRACE, 2, "osndereg"); |
4a71df50 FB |
1219 | if (!dev) |
1220 | return; | |
509e2562 | 1221 | card = dev->ml_priv; |
4a71df50 FB |
1222 | if (!card) |
1223 | return; | |
1224 | card->osn_info.assist_cb = NULL; | |
1225 | card->osn_info.data_cb = NULL; | |
1226 | return; | |
1227 | } | |
1228 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1229 | ||
1230 | module_init(qeth_l2_init); | |
1231 | module_exit(qeth_l2_exit); | |
1232 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1233 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1234 | MODULE_LICENSE("GPL"); |