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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 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/moduleparam.h> | |
13 | #include <linux/string.h> | |
14 | #include <linux/errno.h> | |
15 | #include <linux/kernel.h> | |
16 | #include <linux/etherdevice.h> | |
17 | #include <linux/mii.h> | |
18 | #include <linux/ip.h> | |
19 | ||
20 | #include <asm/s390_rdev.h> | |
21 | ||
22 | #include "qeth_core.h" | |
23 | #include "qeth_core_offl.h" | |
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 | { | |
38 | struct qeth_card *card = netdev_priv(dev); | |
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; | |
104 | unsigned char *readno; | |
105 | __u16 temp_dev_no, card_dev_no; | |
106 | char *endp; | |
107 | unsigned long flags; | |
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) { | |
113 | readno = CARD_RDEV_ID(card); | |
114 | readno += (strlen(readno) - 4); | |
115 | card_dev_no = simple_strtoul(readno, &endp, 16); | |
116 | if (card_dev_no == temp_dev_no) { | |
117 | ndev = card->dev; | |
118 | break; | |
119 | } | |
120 | } | |
121 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
122 | return ndev; | |
123 | } | |
124 | ||
125 | static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, | |
126 | struct qeth_reply *reply, | |
127 | unsigned long data) | |
128 | { | |
129 | struct qeth_ipa_cmd *cmd; | |
130 | __u8 *mac; | |
131 | ||
d11ba0c4 | 132 | QETH_DBF_TEXT(TRACE, 2, "L2Sgmacb"); |
4a71df50 FB |
133 | cmd = (struct qeth_ipa_cmd *) data; |
134 | mac = &cmd->data.setdelmac.mac[0]; | |
135 | /* MAC already registered, needed in couple/uncouple case */ | |
136 | if (cmd->hdr.return_code == 0x2005) { | |
137 | PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \ | |
138 | "already existing on %s \n", | |
139 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], | |
140 | QETH_CARD_IFNAME(card)); | |
141 | cmd->hdr.return_code = 0; | |
142 | } | |
143 | if (cmd->hdr.return_code) | |
144 | PRINT_ERR("Could not set group MAC " \ | |
145 | "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", | |
146 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], | |
147 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
148 | return 0; | |
149 | } | |
150 | ||
151 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
152 | { | |
d11ba0c4 | 153 | QETH_DBF_TEXT(TRACE, 2, "L2Sgmac"); |
4a71df50 FB |
154 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
155 | qeth_l2_send_setgroupmac_cb); | |
156 | } | |
157 | ||
158 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
159 | struct qeth_reply *reply, | |
160 | unsigned long data) | |
161 | { | |
162 | struct qeth_ipa_cmd *cmd; | |
163 | __u8 *mac; | |
164 | ||
d11ba0c4 | 165 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmacb"); |
4a71df50 FB |
166 | cmd = (struct qeth_ipa_cmd *) data; |
167 | mac = &cmd->data.setdelmac.mac[0]; | |
168 | if (cmd->hdr.return_code) | |
169 | PRINT_ERR("Could not delete group MAC " \ | |
170 | "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", | |
171 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], | |
172 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
173 | return 0; | |
174 | } | |
175 | ||
176 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
177 | { | |
d11ba0c4 | 178 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmac"); |
4a71df50 FB |
179 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
180 | qeth_l2_send_delgroupmac_cb); | |
181 | } | |
182 | ||
183 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac) | |
184 | { | |
185 | struct qeth_mc_mac *mc; | |
186 | ||
187 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
188 | ||
189 | if (!mc) { | |
190 | PRINT_ERR("no mem vor mc mac address\n"); | |
191 | return; | |
192 | } | |
193 | ||
194 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
195 | mc->mc_addrlen = OSA_ADDR_LEN; | |
196 | ||
197 | if (!qeth_l2_send_setgroupmac(card, mac)) | |
198 | list_add_tail(&mc->list, &card->mc_list); | |
199 | else | |
200 | kfree(mc); | |
201 | } | |
202 | ||
203 | static void qeth_l2_del_all_mc(struct qeth_card *card) | |
204 | { | |
205 | struct qeth_mc_mac *mc, *tmp; | |
206 | ||
207 | spin_lock_bh(&card->mclock); | |
208 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
209 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
210 | list_del(&mc->list); | |
211 | kfree(mc); | |
212 | } | |
213 | spin_unlock_bh(&card->mclock); | |
214 | } | |
215 | ||
216 | static void qeth_l2_get_packet_type(struct qeth_card *card, | |
217 | struct qeth_hdr *hdr, struct sk_buff *skb) | |
218 | { | |
219 | __u16 hdr_mac; | |
220 | ||
221 | if (!memcmp(skb->data + QETH_HEADER_SIZE, | |
222 | skb->dev->broadcast, 6)) { | |
223 | /* broadcast? */ | |
224 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
225 | return; | |
226 | } | |
227 | hdr_mac = *((__u16 *)skb->data); | |
228 | /* tr multicast? */ | |
229 | switch (card->info.link_type) { | |
230 | case QETH_LINK_TYPE_HSTR: | |
231 | case QETH_LINK_TYPE_LANE_TR: | |
232 | if ((hdr_mac == QETH_TR_MAC_NC) || | |
233 | (hdr_mac == QETH_TR_MAC_C)) | |
234 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
235 | else | |
236 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
237 | break; | |
238 | /* eth or so multicast? */ | |
239 | default: | |
240 | if ((hdr_mac == QETH_ETH_MAC_V4) || | |
241 | (hdr_mac == QETH_ETH_MAC_V6)) | |
242 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
243 | else | |
244 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
245 | } | |
246 | } | |
247 | ||
248 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
249 | struct sk_buff *skb, int ipv, int cast_type) | |
250 | { | |
251 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)((skb->data) + | |
252 | QETH_HEADER_SIZE); | |
253 | ||
254 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
255 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
256 | ||
257 | /* set byte byte 3 to casting flags */ | |
258 | if (cast_type == RTN_MULTICAST) | |
259 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
260 | else if (cast_type == RTN_BROADCAST) | |
261 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
262 | else | |
263 | qeth_l2_get_packet_type(card, hdr, skb); | |
264 | ||
265 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
266 | /* VSWITCH relies on the VLAN | |
267 | * information to be present in | |
268 | * the QDIO header */ | |
269 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
270 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
271 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
272 | } | |
273 | } | |
274 | ||
275 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
276 | struct qeth_reply *reply, unsigned long data) | |
277 | { | |
278 | struct qeth_ipa_cmd *cmd; | |
279 | ||
d11ba0c4 | 280 | QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); |
4a71df50 FB |
281 | cmd = (struct qeth_ipa_cmd *) data; |
282 | if (cmd->hdr.return_code) { | |
283 | PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. " | |
284 | "Continuing\n", cmd->data.setdelvlan.vlan_id, | |
285 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
d11ba0c4 PT |
286 | QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); |
287 | QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); | |
288 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
289 | } |
290 | return 0; | |
291 | } | |
292 | ||
293 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
294 | enum qeth_ipa_cmds ipacmd) | |
295 | { | |
296 | struct qeth_ipa_cmd *cmd; | |
297 | struct qeth_cmd_buffer *iob; | |
298 | ||
d11ba0c4 | 299 | QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
300 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
301 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
302 | cmd->data.setdelvlan.vlan_id = i; | |
303 | return qeth_send_ipa_cmd(card, iob, | |
304 | qeth_l2_send_setdelvlan_cb, NULL); | |
305 | } | |
306 | ||
307 | static void qeth_l2_process_vlans(struct qeth_card *card, int clear) | |
308 | { | |
309 | struct qeth_vlan_vid *id; | |
d11ba0c4 | 310 | QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); |
4a71df50 FB |
311 | spin_lock_bh(&card->vlanlock); |
312 | list_for_each_entry(id, &card->vid_list, list) { | |
313 | if (clear) | |
314 | qeth_l2_send_setdelvlan(card, id->vid, | |
315 | IPA_CMD_DELVLAN); | |
316 | else | |
317 | qeth_l2_send_setdelvlan(card, id->vid, | |
318 | IPA_CMD_SETVLAN); | |
319 | } | |
320 | spin_unlock_bh(&card->vlanlock); | |
321 | } | |
322 | ||
323 | static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
324 | { | |
325 | struct qeth_card *card = netdev_priv(dev); | |
326 | struct qeth_vlan_vid *id; | |
327 | ||
d11ba0c4 | 328 | QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); |
4a71df50 FB |
329 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
330 | if (id) { | |
331 | id->vid = vid; | |
332 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
333 | spin_lock_bh(&card->vlanlock); | |
334 | list_add_tail(&id->list, &card->vid_list); | |
335 | spin_unlock_bh(&card->vlanlock); | |
336 | } else { | |
337 | PRINT_ERR("no memory for vid\n"); | |
338 | } | |
339 | } | |
340 | ||
341 | static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
342 | { | |
343 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
344 | struct qeth_card *card = netdev_priv(dev); | |
345 | ||
d11ba0c4 | 346 | QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); |
4a71df50 FB |
347 | spin_lock_bh(&card->vlanlock); |
348 | list_for_each_entry(id, &card->vid_list, list) { | |
349 | if (id->vid == vid) { | |
350 | list_del(&id->list); | |
351 | tmpid = id; | |
352 | break; | |
353 | } | |
354 | } | |
355 | spin_unlock_bh(&card->vlanlock); | |
356 | if (tmpid) { | |
357 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
358 | kfree(tmpid); | |
359 | } | |
360 | qeth_l2_set_multicast_list(card->dev); | |
361 | } | |
362 | ||
363 | static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) | |
364 | { | |
365 | int rc = 0; | |
366 | ||
d11ba0c4 PT |
367 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
368 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
369 | |
370 | qeth_set_allowed_threads(card, 0, 1); | |
371 | if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) | |
372 | return -ERESTARTSYS; | |
373 | if (card->read.state == CH_STATE_UP && | |
374 | card->write.state == CH_STATE_UP && | |
375 | (card->state == CARD_STATE_UP)) { | |
376 | if (recovery_mode && | |
377 | card->info.type != QETH_CARD_TYPE_OSN) { | |
378 | qeth_l2_stop(card->dev); | |
379 | } else { | |
380 | rtnl_lock(); | |
381 | dev_close(card->dev); | |
382 | rtnl_unlock(); | |
383 | } | |
384 | if (!card->use_hard_stop) { | |
385 | __u8 *mac = &card->dev->dev_addr[0]; | |
386 | rc = qeth_l2_send_delmac(card, mac); | |
d11ba0c4 | 387 | QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); |
4a71df50 FB |
388 | } |
389 | card->state = CARD_STATE_SOFTSETUP; | |
390 | } | |
391 | if (card->state == CARD_STATE_SOFTSETUP) { | |
392 | qeth_l2_process_vlans(card, 1); | |
393 | qeth_l2_del_all_mc(card); | |
394 | qeth_clear_ipacmd_list(card); | |
395 | card->state = CARD_STATE_HARDSETUP; | |
396 | } | |
397 | if (card->state == CARD_STATE_HARDSETUP) { | |
398 | qeth_qdio_clear_card(card, 0); | |
399 | qeth_clear_qdio_buffers(card); | |
400 | qeth_clear_working_pool_list(card); | |
401 | card->state = CARD_STATE_DOWN; | |
402 | } | |
403 | if (card->state == CARD_STATE_DOWN) { | |
404 | qeth_clear_cmd_buffers(&card->read); | |
405 | qeth_clear_cmd_buffers(&card->write); | |
406 | } | |
407 | card->use_hard_stop = 0; | |
408 | return rc; | |
409 | } | |
410 | ||
411 | static void qeth_l2_process_inbound_buffer(struct qeth_card *card, | |
412 | struct qeth_qdio_buffer *buf, int index) | |
413 | { | |
414 | struct qdio_buffer_element *element; | |
415 | struct sk_buff *skb; | |
416 | struct qeth_hdr *hdr; | |
417 | int offset; | |
418 | unsigned int len; | |
419 | ||
420 | /* get first element of current buffer */ | |
421 | element = (struct qdio_buffer_element *)&buf->buffer->element[0]; | |
422 | offset = 0; | |
423 | if (card->options.performance_stats) | |
424 | card->perf_stats.bufs_rec++; | |
425 | while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, | |
426 | &offset, &hdr))) { | |
427 | skb->dev = card->dev; | |
428 | /* is device UP ? */ | |
429 | if (!(card->dev->flags & IFF_UP)) { | |
430 | dev_kfree_skb_any(skb); | |
431 | continue; | |
432 | } | |
433 | ||
434 | switch (hdr->hdr.l2.id) { | |
435 | case QETH_HEADER_TYPE_LAYER2: | |
436 | skb->pkt_type = PACKET_HOST; | |
437 | skb->protocol = eth_type_trans(skb, skb->dev); | |
438 | if (card->options.checksum_type == NO_CHECKSUMMING) | |
439 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
440 | else | |
441 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
442 | if (skb->protocol == htons(ETH_P_802_2)) |
443 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 FB |
444 | len = skb->len; |
445 | netif_rx(skb); | |
446 | break; | |
447 | case QETH_HEADER_TYPE_OSN: | |
448 | skb_push(skb, sizeof(struct qeth_hdr)); | |
449 | skb_copy_to_linear_data(skb, hdr, | |
450 | sizeof(struct qeth_hdr)); | |
451 | len = skb->len; | |
452 | card->osn_info.data_cb(skb); | |
453 | break; | |
454 | default: | |
455 | dev_kfree_skb_any(skb); | |
d11ba0c4 PT |
456 | QETH_DBF_TEXT(TRACE, 3, "inbunkno"); |
457 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); | |
4a71df50 FB |
458 | continue; |
459 | } | |
460 | card->dev->last_rx = jiffies; | |
461 | card->stats.rx_packets++; | |
462 | card->stats.rx_bytes += len; | |
463 | } | |
464 | } | |
465 | ||
466 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
467 | enum qeth_ipa_cmds ipacmd, | |
468 | int (*reply_cb) (struct qeth_card *, | |
469 | struct qeth_reply*, | |
470 | unsigned long)) | |
471 | { | |
472 | struct qeth_ipa_cmd *cmd; | |
473 | struct qeth_cmd_buffer *iob; | |
474 | ||
d11ba0c4 | 475 | QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); |
4a71df50 FB |
476 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
477 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
478 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
479 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
480 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
481 | } | |
482 | ||
483 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
484 | struct qeth_reply *reply, | |
485 | unsigned long data) | |
486 | { | |
487 | struct qeth_ipa_cmd *cmd; | |
488 | ||
d11ba0c4 | 489 | QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); |
4a71df50 FB |
490 | cmd = (struct qeth_ipa_cmd *) data; |
491 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 492 | QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 FB |
493 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
494 | cmd->hdr.return_code = -EIO; | |
495 | } else { | |
496 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
497 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
498 | OSA_ADDR_LEN); | |
499 | PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " | |
500 | "successfully registered on device %s\n", | |
501 | card->dev->dev_addr[0], card->dev->dev_addr[1], | |
502 | card->dev->dev_addr[2], card->dev->dev_addr[3], | |
503 | card->dev->dev_addr[4], card->dev->dev_addr[5], | |
504 | card->dev->name); | |
505 | } | |
506 | return 0; | |
507 | } | |
508 | ||
509 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
510 | { | |
d11ba0c4 | 511 | QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); |
4a71df50 FB |
512 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
513 | qeth_l2_send_setmac_cb); | |
514 | } | |
515 | ||
516 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
517 | struct qeth_reply *reply, | |
518 | unsigned long data) | |
519 | { | |
520 | struct qeth_ipa_cmd *cmd; | |
521 | ||
d11ba0c4 | 522 | QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); |
4a71df50 FB |
523 | cmd = (struct qeth_ipa_cmd *) data; |
524 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 525 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
526 | cmd->hdr.return_code = -EIO; |
527 | return 0; | |
528 | } | |
529 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
530 | ||
531 | return 0; | |
532 | } | |
533 | ||
534 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
535 | { | |
d11ba0c4 | 536 | QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); |
4a71df50 FB |
537 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
538 | return 0; | |
539 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
540 | qeth_l2_send_delmac_cb); | |
541 | } | |
542 | ||
543 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
544 | { | |
545 | int rc = 0; | |
546 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
547 | ||
d11ba0c4 PT |
548 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
549 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
550 | |
551 | rc = qeth_query_setadapterparms(card); | |
552 | if (rc) { | |
553 | PRINT_WARN("could not query adapter parameters on device %s: " | |
554 | "x%x\n", CARD_BUS_ID(card), rc); | |
555 | } | |
556 | ||
557 | if (card->info.guestlan) { | |
558 | rc = qeth_setadpparms_change_macaddr(card); | |
559 | if (rc) { | |
560 | PRINT_WARN("couldn't get MAC address on " | |
561 | "device %s: x%x\n", | |
562 | CARD_BUS_ID(card), rc); | |
d11ba0c4 | 563 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
564 | return rc; |
565 | } | |
d11ba0c4 | 566 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
567 | } else { |
568 | random_ether_addr(card->dev->dev_addr); | |
569 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
570 | } | |
571 | return 0; | |
572 | } | |
573 | ||
574 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
575 | { | |
576 | struct sockaddr *addr = p; | |
577 | struct qeth_card *card = netdev_priv(dev); | |
578 | int rc = 0; | |
579 | ||
d11ba0c4 | 580 | QETH_DBF_TEXT(TRACE, 3, "setmac"); |
4a71df50 FB |
581 | |
582 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
d11ba0c4 | 583 | QETH_DBF_TEXT(TRACE, 3, "setmcINV"); |
4a71df50 FB |
584 | return -EOPNOTSUPP; |
585 | } | |
586 | ||
587 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
588 | PRINT_WARN("Setting MAC address on %s is not supported.\n", | |
589 | dev->name); | |
d11ba0c4 | 590 | QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); |
4a71df50 FB |
591 | return -EOPNOTSUPP; |
592 | } | |
d11ba0c4 PT |
593 | QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); |
594 | QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); | |
4a71df50 FB |
595 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
596 | if (!rc) | |
597 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
598 | return rc; | |
599 | } | |
600 | ||
601 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
602 | { | |
603 | struct qeth_card *card = netdev_priv(dev); | |
604 | struct dev_mc_list *dm; | |
605 | ||
606 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
607 | return ; | |
608 | ||
d11ba0c4 | 609 | QETH_DBF_TEXT(TRACE, 3, "setmulti"); |
4a71df50 FB |
610 | qeth_l2_del_all_mc(card); |
611 | spin_lock_bh(&card->mclock); | |
612 | for (dm = dev->mc_list; dm; dm = dm->next) | |
613 | qeth_l2_add_mc(card, dm->dmi_addr); | |
614 | spin_unlock_bh(&card->mclock); | |
615 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
616 | return; | |
617 | qeth_setadp_promisc_mode(card); | |
618 | } | |
619 | ||
620 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
621 | { | |
622 | int rc; | |
623 | struct qeth_hdr *hdr = NULL; | |
624 | int elements = 0; | |
625 | struct qeth_card *card = netdev_priv(dev); | |
626 | struct sk_buff *new_skb = skb; | |
627 | int ipv = qeth_get_ip_version(skb); | |
628 | int cast_type = qeth_get_cast_type(card, skb); | |
629 | struct qeth_qdio_out_q *queue = card->qdio.out_qs | |
630 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
631 | int tx_bytes = skb->len; | |
632 | enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; | |
633 | struct qeth_eddp_context *ctx = NULL; | |
634 | ||
d11ba0c4 | 635 | QETH_DBF_TEXT(TRACE, 6, "l2xmit"); |
4a71df50 FB |
636 | |
637 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { | |
638 | card->stats.tx_carrier_errors++; | |
639 | goto tx_drop; | |
640 | } | |
641 | ||
642 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
643 | (skb->protocol == htons(ETH_P_IPV6))) | |
644 | goto tx_drop; | |
645 | ||
646 | if (card->options.performance_stats) { | |
647 | card->perf_stats.outbound_cnt++; | |
648 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
649 | } | |
650 | netif_stop_queue(dev); | |
651 | ||
652 | if (skb_is_gso(skb)) | |
653 | large_send = QETH_LARGE_SEND_EDDP; | |
654 | ||
655 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
656 | hdr = (struct qeth_hdr *)skb->data; | |
657 | else { | |
658 | new_skb = qeth_prepare_skb(card, skb, &hdr); | |
659 | if (!new_skb) | |
660 | goto tx_drop; | |
661 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
662 | } | |
663 | ||
664 | if (large_send == QETH_LARGE_SEND_EDDP) { | |
665 | ctx = qeth_eddp_create_context(card, new_skb, hdr, | |
666 | skb->sk->sk_protocol); | |
667 | if (ctx == NULL) { | |
668 | PRINT_WARN("could not create eddp context\n"); | |
669 | goto tx_drop; | |
670 | } | |
671 | } else { | |
672 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, 0); | |
673 | if (!elements) | |
674 | goto tx_drop; | |
675 | } | |
676 | ||
677 | if ((large_send == QETH_LARGE_SEND_NO) && | |
678 | (skb->ip_summed == CHECKSUM_PARTIAL)) | |
679 | qeth_tx_csum(new_skb); | |
680 | ||
681 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
682 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, | |
683 | elements, ctx); | |
684 | else | |
685 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, | |
686 | elements, ctx); | |
687 | if (!rc) { | |
688 | card->stats.tx_packets++; | |
689 | card->stats.tx_bytes += tx_bytes; | |
690 | if (new_skb != skb) | |
691 | dev_kfree_skb_any(skb); | |
692 | if (card->options.performance_stats) { | |
693 | if (large_send != QETH_LARGE_SEND_NO) { | |
694 | card->perf_stats.large_send_bytes += tx_bytes; | |
695 | card->perf_stats.large_send_cnt++; | |
696 | } | |
697 | if (skb_shinfo(new_skb)->nr_frags > 0) { | |
698 | card->perf_stats.sg_skbs_sent++; | |
699 | /* nr_frags + skb->data */ | |
700 | card->perf_stats.sg_frags_sent += | |
701 | skb_shinfo(new_skb)->nr_frags + 1; | |
702 | } | |
703 | } | |
704 | ||
705 | if (ctx != NULL) { | |
706 | qeth_eddp_put_context(ctx); | |
707 | dev_kfree_skb_any(new_skb); | |
708 | } | |
709 | } else { | |
710 | if (ctx != NULL) | |
711 | qeth_eddp_put_context(ctx); | |
712 | ||
713 | if (rc == -EBUSY) { | |
714 | if (new_skb != skb) | |
715 | dev_kfree_skb_any(new_skb); | |
716 | return NETDEV_TX_BUSY; | |
717 | } else | |
718 | goto tx_drop; | |
719 | } | |
720 | ||
721 | netif_wake_queue(dev); | |
722 | if (card->options.performance_stats) | |
723 | card->perf_stats.outbound_time += qeth_get_micros() - | |
724 | card->perf_stats.outbound_start_time; | |
725 | return rc; | |
726 | ||
727 | tx_drop: | |
728 | card->stats.tx_dropped++; | |
729 | card->stats.tx_errors++; | |
730 | if ((new_skb != skb) && new_skb) | |
731 | dev_kfree_skb_any(new_skb); | |
732 | dev_kfree_skb_any(skb); | |
733 | return NETDEV_TX_OK; | |
734 | } | |
735 | ||
736 | static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, | |
737 | unsigned int status, unsigned int qdio_err, | |
738 | unsigned int siga_err, unsigned int queue, | |
739 | int first_element, int count, unsigned long card_ptr) | |
740 | { | |
741 | struct net_device *net_dev; | |
742 | struct qeth_card *card; | |
743 | struct qeth_qdio_buffer *buffer; | |
744 | int index; | |
745 | int i; | |
746 | ||
d11ba0c4 | 747 | QETH_DBF_TEXT(TRACE, 6, "qdinput"); |
4a71df50 FB |
748 | card = (struct qeth_card *) card_ptr; |
749 | net_dev = card->dev; | |
750 | if (card->options.performance_stats) { | |
751 | card->perf_stats.inbound_cnt++; | |
752 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
753 | } | |
754 | if (status & QDIO_STATUS_LOOK_FOR_ERROR) { | |
755 | if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION) { | |
d11ba0c4 PT |
756 | QETH_DBF_TEXT(TRACE, 1, "qdinchk"); |
757 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
758 | QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, | |
4a71df50 | 759 | count); |
d11ba0c4 | 760 | QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", queue, status); |
4a71df50 FB |
761 | qeth_schedule_recovery(card); |
762 | return; | |
763 | } | |
764 | } | |
765 | for (i = first_element; i < (first_element + count); ++i) { | |
766 | index = i % QDIO_MAX_BUFFERS_PER_Q; | |
767 | buffer = &card->qdio.in_q->bufs[index]; | |
768 | if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) && | |
769 | qeth_check_qdio_errors(buffer->buffer, | |
770 | qdio_err, siga_err, "qinerr"))) | |
771 | qeth_l2_process_inbound_buffer(card, buffer, index); | |
772 | /* clear buffer and give back to hardware */ | |
773 | qeth_put_buffer_pool_entry(card, buffer->pool_entry); | |
774 | qeth_queue_input_buffer(card, index); | |
775 | } | |
776 | if (card->options.performance_stats) | |
777 | card->perf_stats.inbound_time += qeth_get_micros() - | |
778 | card->perf_stats.inbound_start_time; | |
779 | } | |
780 | ||
781 | static int qeth_l2_open(struct net_device *dev) | |
782 | { | |
783 | struct qeth_card *card = netdev_priv(dev); | |
784 | ||
d11ba0c4 | 785 | QETH_DBF_TEXT(TRACE, 4, "qethopen"); |
4a71df50 FB |
786 | if (card->state != CARD_STATE_SOFTSETUP) |
787 | return -ENODEV; | |
788 | ||
789 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
790 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
d11ba0c4 | 791 | QETH_DBF_TEXT(TRACE, 4, "nomacadr"); |
4a71df50 FB |
792 | return -EPERM; |
793 | } | |
794 | card->data.state = CH_STATE_UP; | |
795 | card->state = CARD_STATE_UP; | |
796 | card->dev->flags |= IFF_UP; | |
797 | netif_start_queue(dev); | |
798 | ||
799 | if (!card->lan_online && netif_carrier_ok(dev)) | |
800 | netif_carrier_off(dev); | |
801 | return 0; | |
802 | } | |
803 | ||
804 | ||
805 | static int qeth_l2_stop(struct net_device *dev) | |
806 | { | |
807 | struct qeth_card *card = netdev_priv(dev); | |
808 | ||
d11ba0c4 | 809 | QETH_DBF_TEXT(TRACE, 4, "qethstop"); |
4a71df50 FB |
810 | netif_tx_disable(dev); |
811 | card->dev->flags &= ~IFF_UP; | |
812 | if (card->state == CARD_STATE_UP) | |
813 | card->state = CARD_STATE_SOFTSETUP; | |
814 | return 0; | |
815 | } | |
816 | ||
817 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
818 | { | |
819 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
820 | ||
821 | INIT_LIST_HEAD(&card->vid_list); | |
822 | INIT_LIST_HEAD(&card->mc_list); | |
823 | card->options.layer2 = 1; | |
824 | card->discipline.input_handler = (qdio_handler_t *) | |
825 | qeth_l2_qdio_input_handler; | |
826 | card->discipline.output_handler = (qdio_handler_t *) | |
827 | qeth_qdio_output_handler; | |
828 | card->discipline.recover = qeth_l2_recover; | |
829 | return 0; | |
830 | } | |
831 | ||
832 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
833 | { | |
834 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
835 | ||
836 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
837 | ||
838 | if (cgdev->state == CCWGROUP_ONLINE) { | |
839 | card->use_hard_stop = 1; | |
840 | qeth_l2_set_offline(cgdev); | |
841 | } | |
842 | ||
843 | if (card->dev) { | |
844 | unregister_netdev(card->dev); | |
845 | card->dev = NULL; | |
846 | } | |
847 | ||
848 | qeth_l2_del_all_mc(card); | |
849 | return; | |
850 | } | |
851 | ||
852 | static struct ethtool_ops qeth_l2_ethtool_ops = { | |
853 | .get_link = ethtool_op_get_link, | |
854 | .get_tx_csum = ethtool_op_get_tx_csum, | |
855 | .set_tx_csum = ethtool_op_set_tx_hw_csum, | |
856 | .get_sg = ethtool_op_get_sg, | |
857 | .set_sg = ethtool_op_set_sg, | |
858 | .get_tso = ethtool_op_get_tso, | |
859 | .set_tso = ethtool_op_set_tso, | |
860 | .get_strings = qeth_core_get_strings, | |
861 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
862 | .get_stats_count = qeth_core_get_stats_count, | |
863 | .get_drvinfo = qeth_core_get_drvinfo, | |
3f9975aa | 864 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
865 | }; |
866 | ||
867 | static struct ethtool_ops qeth_l2_osn_ops = { | |
868 | .get_strings = qeth_core_get_strings, | |
869 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
870 | .get_stats_count = qeth_core_get_stats_count, | |
871 | .get_drvinfo = qeth_core_get_drvinfo, | |
872 | }; | |
873 | ||
874 | static int qeth_l2_setup_netdev(struct qeth_card *card) | |
875 | { | |
876 | switch (card->info.type) { | |
877 | case QETH_CARD_TYPE_OSAE: | |
878 | card->dev = alloc_etherdev(0); | |
879 | break; | |
880 | case QETH_CARD_TYPE_IQD: | |
881 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
882 | break; | |
883 | case QETH_CARD_TYPE_OSN: | |
884 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
885 | card->dev->flags |= IFF_NOARP; | |
886 | break; | |
887 | default: | |
888 | card->dev = alloc_etherdev(0); | |
889 | } | |
890 | ||
891 | if (!card->dev) | |
892 | return -ENODEV; | |
893 | ||
894 | card->dev->priv = card; | |
895 | card->dev->tx_timeout = &qeth_tx_timeout; | |
896 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; | |
897 | card->dev->open = qeth_l2_open; | |
898 | card->dev->stop = qeth_l2_stop; | |
899 | card->dev->hard_start_xmit = qeth_l2_hard_start_xmit; | |
900 | card->dev->do_ioctl = qeth_l2_do_ioctl; | |
901 | card->dev->get_stats = qeth_get_stats; | |
902 | card->dev->change_mtu = qeth_change_mtu; | |
903 | card->dev->set_multicast_list = qeth_l2_set_multicast_list; | |
904 | card->dev->vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid; | |
905 | card->dev->vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid; | |
906 | card->dev->set_mac_address = qeth_l2_set_mac_address; | |
907 | card->dev->mtu = card->info.initial_mtu; | |
908 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
909 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
910 | else | |
911 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
912 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
913 | card->info.broadcast_capable = 1; | |
914 | qeth_l2_request_initial_mac(card); | |
915 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
916 | return register_netdev(card->dev); | |
917 | } | |
918 | ||
919 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
920 | { | |
921 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
922 | int rc = 0; | |
923 | enum qeth_card_states recover_flag; | |
924 | ||
925 | BUG_ON(!card); | |
d11ba0c4 PT |
926 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
927 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
928 | |
929 | qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); | |
930 | if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) { | |
931 | PRINT_WARN("set_online of card %s interrupted by user!\n", | |
932 | CARD_BUS_ID(card)); | |
933 | return -ERESTARTSYS; | |
934 | } | |
935 | ||
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 FB |
974 | if (rc == 0xe080) { |
975 | PRINT_WARN("LAN on card %s if offline! " | |
976 | "Waiting for STARTLAN from card.\n", | |
977 | CARD_BUS_ID(card)); | |
978 | card->lan_online = 0; | |
979 | } | |
980 | return rc; | |
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; | |
1046 | if (qeth_l2_stop_card(card, recovery_mode) == -ERESTARTSYS) { | |
1047 | PRINT_WARN("Stopping card %s interrupted by user!\n", | |
1048 | CARD_BUS_ID(card)); | |
1049 | return -ERESTARTSYS; | |
1050 | } | |
1051 | rc = ccw_device_set_offline(CARD_DDEV(card)); | |
1052 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1053 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1054 | if (!rc) | |
1055 | rc = (rc2) ? rc2 : rc3; | |
1056 | if (rc) | |
d11ba0c4 | 1057 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1058 | if (recover_flag == CARD_STATE_UP) |
1059 | card->state = CARD_STATE_RECOVER; | |
1060 | /* let user_space know that device is offline */ | |
1061 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1066 | { | |
1067 | return __qeth_l2_set_offline(cgdev, 0); | |
1068 | } | |
1069 | ||
1070 | static int qeth_l2_recover(void *ptr) | |
1071 | { | |
1072 | struct qeth_card *card; | |
1073 | int rc = 0; | |
1074 | ||
1075 | card = (struct qeth_card *) ptr; | |
d11ba0c4 PT |
1076 | QETH_DBF_TEXT(TRACE, 2, "recover1"); |
1077 | QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1078 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1079 | return 0; | |
d11ba0c4 | 1080 | QETH_DBF_TEXT(TRACE, 2, "recover2"); |
4a71df50 FB |
1081 | PRINT_WARN("Recovery of device %s started ...\n", |
1082 | CARD_BUS_ID(card)); | |
1083 | card->use_hard_stop = 1; | |
1084 | __qeth_l2_set_offline(card->gdev, 1); | |
1085 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1086 | /* don't run another scheduled recovery */ | |
1087 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
1088 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
1089 | if (!rc) | |
1090 | PRINT_INFO("Device %s successfully recovered!\n", | |
1091 | CARD_BUS_ID(card)); | |
1092 | else | |
1093 | PRINT_INFO("Device %s could not be recovered!\n", | |
1094 | CARD_BUS_ID(card)); | |
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | static int __init qeth_l2_init(void) | |
1099 | { | |
1100 | PRINT_INFO("register layer 2 discipline\n"); | |
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | static void __exit qeth_l2_exit(void) | |
1105 | { | |
1106 | PRINT_INFO("unregister layer 2 discipline\n"); | |
1107 | } | |
1108 | ||
1109 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1110 | { | |
1111 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1112 | qeth_qdio_clear_card(card, 0); | |
1113 | qeth_clear_qdio_buffers(card); | |
1114 | } | |
1115 | ||
1116 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { | |
1117 | .probe = qeth_l2_probe_device, | |
1118 | .remove = qeth_l2_remove_device, | |
1119 | .set_online = qeth_l2_set_online, | |
1120 | .set_offline = qeth_l2_set_offline, | |
1121 | .shutdown = qeth_l2_shutdown, | |
1122 | }; | |
1123 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1124 | ||
1125 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1126 | struct qeth_cmd_buffer *iob) | |
1127 | { | |
1128 | unsigned long flags; | |
1129 | int rc = 0; | |
1130 | ||
d11ba0c4 | 1131 | QETH_DBF_TEXT(TRACE, 5, "osndctrd"); |
4a71df50 FB |
1132 | |
1133 | wait_event(card->wait_q, | |
1134 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1135 | qeth_prepare_control_data(card, len, iob); | |
d11ba0c4 | 1136 | QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); |
4a71df50 FB |
1137 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1138 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1139 | (addr_t) iob, 0, 0); | |
1140 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1141 | if (rc) { | |
1142 | PRINT_WARN("qeth_osn_send_control_data: " | |
1143 | "ccw_device_start rc = %i\n", rc); | |
d11ba0c4 | 1144 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
4a71df50 FB |
1145 | qeth_release_buffer(iob->channel, iob); |
1146 | atomic_set(&card->write.irq_pending, 0); | |
1147 | wake_up(&card->wait_q); | |
1148 | } | |
1149 | return rc; | |
1150 | } | |
1151 | ||
1152 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1153 | struct qeth_cmd_buffer *iob, int data_len) | |
1154 | { | |
1155 | u16 s1, s2; | |
1156 | ||
d11ba0c4 | 1157 | QETH_DBF_TEXT(TRACE, 4, "osndipa"); |
4a71df50 FB |
1158 | |
1159 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1160 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1161 | s2 = (u16)data_len; | |
1162 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1163 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1164 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1165 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1166 | return qeth_osn_send_control_data(card, s1, iob); | |
1167 | } | |
1168 | ||
1169 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1170 | { | |
1171 | struct qeth_cmd_buffer *iob; | |
1172 | struct qeth_card *card; | |
1173 | int rc; | |
1174 | ||
d11ba0c4 | 1175 | QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); |
4a71df50 FB |
1176 | if (!dev) |
1177 | return -ENODEV; | |
1178 | card = netdev_priv(dev); | |
1179 | if (!card) | |
1180 | return -ENODEV; | |
1181 | if ((card->state != CARD_STATE_UP) && | |
1182 | (card->state != CARD_STATE_SOFTSETUP)) | |
1183 | return -ENODEV; | |
1184 | iob = qeth_wait_for_buffer(&card->write); | |
1185 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1186 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1187 | return rc; | |
1188 | } | |
1189 | EXPORT_SYMBOL(qeth_osn_assist); | |
1190 | ||
1191 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1192 | int (*assist_cb)(struct net_device *, void *), | |
1193 | int (*data_cb)(struct sk_buff *)) | |
1194 | { | |
1195 | struct qeth_card *card; | |
1196 | ||
d11ba0c4 | 1197 | QETH_DBF_TEXT(TRACE, 2, "osnreg"); |
4a71df50 FB |
1198 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1199 | if (*dev == NULL) | |
1200 | return -ENODEV; | |
1201 | card = netdev_priv(*dev); | |
1202 | if (!card) | |
1203 | return -ENODEV; | |
1204 | if ((assist_cb == NULL) || (data_cb == NULL)) | |
1205 | return -EINVAL; | |
1206 | card->osn_info.assist_cb = assist_cb; | |
1207 | card->osn_info.data_cb = data_cb; | |
1208 | return 0; | |
1209 | } | |
1210 | EXPORT_SYMBOL(qeth_osn_register); | |
1211 | ||
1212 | void qeth_osn_deregister(struct net_device *dev) | |
1213 | { | |
1214 | struct qeth_card *card; | |
1215 | ||
d11ba0c4 | 1216 | QETH_DBF_TEXT(TRACE, 2, "osndereg"); |
4a71df50 FB |
1217 | if (!dev) |
1218 | return; | |
1219 | card = netdev_priv(dev); | |
1220 | if (!card) | |
1221 | return; | |
1222 | card->osn_info.assist_cb = NULL; | |
1223 | card->osn_info.data_cb = NULL; | |
1224 | return; | |
1225 | } | |
1226 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1227 | ||
1228 | module_init(qeth_l2_init); | |
1229 | module_exit(qeth_l2_exit); | |
1230 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1231 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1232 | MODULE_LICENSE("GPL"); |