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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 | ||
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 | ||
23 | #include <asm/s390_rdev.h> | |
24 | ||
25 | #include "qeth_core.h" | |
26 | #include "qeth_core_offl.h" | |
27 | ||
4a71df50 FB |
28 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
29 | static int qeth_l2_stop(struct net_device *); | |
30 | static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); | |
31 | static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, | |
32 | enum qeth_ipa_cmds, | |
33 | int (*reply_cb) (struct qeth_card *, | |
34 | struct qeth_reply*, | |
35 | unsigned long)); | |
36 | static void qeth_l2_set_multicast_list(struct net_device *); | |
37 | static int qeth_l2_recover(void *); | |
38 | ||
39 | static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
40 | { | |
509e2562 | 41 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
42 | struct mii_ioctl_data *mii_data; |
43 | int rc = 0; | |
44 | ||
45 | if (!card) | |
46 | return -ENODEV; | |
47 | ||
48 | if ((card->state != CARD_STATE_UP) && | |
49 | (card->state != CARD_STATE_SOFTSETUP)) | |
50 | return -ENODEV; | |
51 | ||
52 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
53 | return -EPERM; | |
54 | ||
55 | switch (cmd) { | |
56 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
57 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
58 | break; | |
59 | case SIOC_QETH_GET_CARD_TYPE: | |
60 | if ((card->info.type == QETH_CARD_TYPE_OSAE) && | |
61 | !card->info.guestlan) | |
62 | return 1; | |
63 | return 0; | |
64 | break; | |
65 | case SIOCGMIIPHY: | |
66 | mii_data = if_mii(rq); | |
67 | mii_data->phy_id = 0; | |
68 | break; | |
69 | case SIOCGMIIREG: | |
70 | mii_data = if_mii(rq); | |
71 | if (mii_data->phy_id != 0) | |
72 | rc = -EINVAL; | |
73 | else | |
74 | mii_data->val_out = qeth_mdio_read(dev, | |
75 | mii_data->phy_id, mii_data->reg_num); | |
76 | break; | |
77 | default: | |
78 | rc = -EOPNOTSUPP; | |
79 | } | |
80 | if (rc) | |
d11ba0c4 | 81 | QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc); |
4a71df50 FB |
82 | return rc; |
83 | } | |
84 | ||
85 | static int qeth_l2_verify_dev(struct net_device *dev) | |
86 | { | |
87 | struct qeth_card *card; | |
88 | unsigned long flags; | |
89 | int rc = 0; | |
90 | ||
91 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
92 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
93 | if (card->dev == dev) { | |
94 | rc = QETH_REAL_CARD; | |
95 | break; | |
96 | } | |
97 | } | |
98 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
99 | ||
100 | return rc; | |
101 | } | |
102 | ||
103 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) | |
104 | { | |
105 | struct qeth_card *card; | |
106 | struct net_device *ndev; | |
f06f6f32 | 107 | __u16 temp_dev_no; |
4a71df50 | 108 | unsigned long flags; |
f06f6f32 | 109 | struct ccw_dev_id read_devid; |
4a71df50 FB |
110 | |
111 | ndev = NULL; | |
112 | memcpy(&temp_dev_no, read_dev_no, 2); | |
113 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
114 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
115 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
116 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
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) { | |
7c510e4b JB |
137 | QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
138 | mac, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
139 | cmd->hdr.return_code = 0; |
140 | } | |
141 | if (cmd->hdr.return_code) | |
7c510e4b JB |
142 | QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
143 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
144 | return 0; |
145 | } | |
146 | ||
147 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
148 | { | |
d11ba0c4 | 149 | QETH_DBF_TEXT(TRACE, 2, "L2Sgmac"); |
4a71df50 FB |
150 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
151 | qeth_l2_send_setgroupmac_cb); | |
152 | } | |
153 | ||
154 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
155 | struct qeth_reply *reply, | |
156 | unsigned long data) | |
157 | { | |
158 | struct qeth_ipa_cmd *cmd; | |
159 | __u8 *mac; | |
160 | ||
d11ba0c4 | 161 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmacb"); |
4a71df50 FB |
162 | cmd = (struct qeth_ipa_cmd *) data; |
163 | mac = &cmd->data.setdelmac.mac[0]; | |
164 | if (cmd->hdr.return_code) | |
7c510e4b JB |
165 | QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
166 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
167 | return 0; |
168 | } | |
169 | ||
170 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
171 | { | |
d11ba0c4 | 172 | QETH_DBF_TEXT(TRACE, 2, "L2Dgmac"); |
4a71df50 FB |
173 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
174 | qeth_l2_send_delgroupmac_cb); | |
175 | } | |
176 | ||
7db2266a | 177 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
4a71df50 FB |
178 | { |
179 | struct qeth_mc_mac *mc; | |
7db2266a | 180 | int rc; |
4a71df50 FB |
181 | |
182 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
183 | ||
14cc21b6 | 184 | if (!mc) |
4a71df50 | 185 | return; |
4a71df50 FB |
186 | |
187 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
188 | mc->mc_addrlen = OSA_ADDR_LEN; | |
7db2266a FB |
189 | mc->is_vmac = vmac; |
190 | ||
191 | if (vmac) { | |
192 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, | |
193 | NULL); | |
194 | } else { | |
195 | rc = qeth_l2_send_setgroupmac(card, mac); | |
196 | } | |
4a71df50 | 197 | |
7db2266a | 198 | if (!rc) |
4a71df50 FB |
199 | list_add_tail(&mc->list, &card->mc_list); |
200 | else | |
201 | kfree(mc); | |
202 | } | |
203 | ||
204 | static void qeth_l2_del_all_mc(struct qeth_card *card) | |
205 | { | |
206 | struct qeth_mc_mac *mc, *tmp; | |
207 | ||
208 | spin_lock_bh(&card->mclock); | |
209 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
7db2266a FB |
210 | if (mc->is_vmac) |
211 | qeth_l2_send_setdelmac(card, mc->mc_addr, | |
212 | IPA_CMD_DELVMAC, NULL); | |
213 | else | |
214 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
4a71df50 FB |
215 | list_del(&mc->list); |
216 | kfree(mc); | |
217 | } | |
218 | spin_unlock_bh(&card->mclock); | |
219 | } | |
220 | ||
221 | static void qeth_l2_get_packet_type(struct qeth_card *card, | |
222 | struct qeth_hdr *hdr, struct sk_buff *skb) | |
223 | { | |
224 | __u16 hdr_mac; | |
225 | ||
226 | if (!memcmp(skb->data + QETH_HEADER_SIZE, | |
227 | skb->dev->broadcast, 6)) { | |
228 | /* broadcast? */ | |
229 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
230 | return; | |
231 | } | |
232 | hdr_mac = *((__u16 *)skb->data); | |
233 | /* tr multicast? */ | |
234 | switch (card->info.link_type) { | |
235 | case QETH_LINK_TYPE_HSTR: | |
236 | case QETH_LINK_TYPE_LANE_TR: | |
237 | if ((hdr_mac == QETH_TR_MAC_NC) || | |
238 | (hdr_mac == QETH_TR_MAC_C)) | |
239 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
240 | else | |
241 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
242 | break; | |
243 | /* eth or so multicast? */ | |
244 | default: | |
245 | if ((hdr_mac == QETH_ETH_MAC_V4) || | |
246 | (hdr_mac == QETH_ETH_MAC_V6)) | |
247 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
248 | else | |
249 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; | |
250 | } | |
251 | } | |
252 | ||
253 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
254 | struct sk_buff *skb, int ipv, int cast_type) | |
255 | { | |
683d718a | 256 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
257 | |
258 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
259 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
260 | ||
261 | /* set byte byte 3 to casting flags */ | |
262 | if (cast_type == RTN_MULTICAST) | |
263 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
264 | else if (cast_type == RTN_BROADCAST) | |
265 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
266 | else | |
267 | qeth_l2_get_packet_type(card, hdr, skb); | |
268 | ||
269 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
270 | /* VSWITCH relies on the VLAN | |
271 | * information to be present in | |
272 | * the QDIO header */ | |
273 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
274 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
275 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
276 | } | |
277 | } | |
278 | ||
279 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
280 | struct qeth_reply *reply, unsigned long data) | |
281 | { | |
282 | struct qeth_ipa_cmd *cmd; | |
283 | ||
d11ba0c4 | 284 | QETH_DBF_TEXT(TRACE, 2, "L2sdvcb"); |
4a71df50 FB |
285 | cmd = (struct qeth_ipa_cmd *) data; |
286 | if (cmd->hdr.return_code) { | |
14cc21b6 | 287 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
288 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
289 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
d11ba0c4 PT |
290 | QETH_DBF_TEXT_(TRACE, 2, "L2VL%4x", cmd->hdr.command); |
291 | QETH_DBF_TEXT_(TRACE, 2, "L2%s", CARD_BUS_ID(card)); | |
292 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
293 | } |
294 | return 0; | |
295 | } | |
296 | ||
297 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
298 | enum qeth_ipa_cmds ipacmd) | |
299 | { | |
300 | struct qeth_ipa_cmd *cmd; | |
301 | struct qeth_cmd_buffer *iob; | |
302 | ||
d11ba0c4 | 303 | QETH_DBF_TEXT_(TRACE, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
304 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
305 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
306 | cmd->data.setdelvlan.vlan_id = i; | |
307 | return qeth_send_ipa_cmd(card, iob, | |
308 | qeth_l2_send_setdelvlan_cb, NULL); | |
309 | } | |
310 | ||
311 | static void qeth_l2_process_vlans(struct qeth_card *card, int clear) | |
312 | { | |
313 | struct qeth_vlan_vid *id; | |
d11ba0c4 | 314 | QETH_DBF_TEXT(TRACE, 3, "L2prcvln"); |
4a71df50 FB |
315 | spin_lock_bh(&card->vlanlock); |
316 | list_for_each_entry(id, &card->vid_list, list) { | |
317 | if (clear) | |
318 | qeth_l2_send_setdelvlan(card, id->vid, | |
319 | IPA_CMD_DELVLAN); | |
320 | else | |
321 | qeth_l2_send_setdelvlan(card, id->vid, | |
322 | IPA_CMD_SETVLAN); | |
323 | } | |
324 | spin_unlock_bh(&card->vlanlock); | |
325 | } | |
326 | ||
327 | static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
328 | { | |
509e2562 | 329 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
330 | struct qeth_vlan_vid *id; |
331 | ||
d11ba0c4 | 332 | QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); |
4a71df50 FB |
333 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
334 | if (id) { | |
335 | id->vid = vid; | |
336 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
337 | spin_lock_bh(&card->vlanlock); | |
338 | list_add_tail(&id->list, &card->vid_list); | |
339 | spin_unlock_bh(&card->vlanlock); | |
4a71df50 FB |
340 | } |
341 | } | |
342 | ||
343 | static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
344 | { | |
345 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 346 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 347 | |
d11ba0c4 | 348 | QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); |
4a71df50 FB |
349 | spin_lock_bh(&card->vlanlock); |
350 | list_for_each_entry(id, &card->vid_list, list) { | |
351 | if (id->vid == vid) { | |
352 | list_del(&id->list); | |
353 | tmpid = id; | |
354 | break; | |
355 | } | |
356 | } | |
357 | spin_unlock_bh(&card->vlanlock); | |
358 | if (tmpid) { | |
359 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
360 | kfree(tmpid); | |
361 | } | |
362 | qeth_l2_set_multicast_list(card->dev); | |
363 | } | |
364 | ||
365 | static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) | |
366 | { | |
367 | int rc = 0; | |
368 | ||
d11ba0c4 PT |
369 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
370 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
371 | |
372 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
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); | |
28a7e4c9 UB |
393 | if (!card->use_hard_stop) |
394 | qeth_l2_del_all_mc(card); | |
4a71df50 FB |
395 | qeth_clear_ipacmd_list(card); |
396 | card->state = CARD_STATE_HARDSETUP; | |
397 | } | |
398 | if (card->state == CARD_STATE_HARDSETUP) { | |
399 | qeth_qdio_clear_card(card, 0); | |
400 | qeth_clear_qdio_buffers(card); | |
401 | qeth_clear_working_pool_list(card); | |
402 | card->state = CARD_STATE_DOWN; | |
403 | } | |
404 | if (card->state == CARD_STATE_DOWN) { | |
405 | qeth_clear_cmd_buffers(&card->read); | |
406 | qeth_clear_cmd_buffers(&card->write); | |
407 | } | |
408 | card->use_hard_stop = 0; | |
409 | return rc; | |
410 | } | |
411 | ||
412 | static void qeth_l2_process_inbound_buffer(struct qeth_card *card, | |
413 | struct qeth_qdio_buffer *buf, int index) | |
414 | { | |
415 | struct qdio_buffer_element *element; | |
416 | struct sk_buff *skb; | |
417 | struct qeth_hdr *hdr; | |
418 | int offset; | |
419 | unsigned int len; | |
420 | ||
421 | /* get first element of current buffer */ | |
422 | element = (struct qdio_buffer_element *)&buf->buffer->element[0]; | |
423 | offset = 0; | |
424 | if (card->options.performance_stats) | |
425 | card->perf_stats.bufs_rec++; | |
426 | while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element, | |
427 | &offset, &hdr))) { | |
428 | skb->dev = card->dev; | |
429 | /* is device UP ? */ | |
430 | if (!(card->dev->flags & IFF_UP)) { | |
431 | dev_kfree_skb_any(skb); | |
432 | continue; | |
433 | } | |
434 | ||
435 | switch (hdr->hdr.l2.id) { | |
436 | case QETH_HEADER_TYPE_LAYER2: | |
437 | skb->pkt_type = PACKET_HOST; | |
438 | skb->protocol = eth_type_trans(skb, skb->dev); | |
439 | if (card->options.checksum_type == NO_CHECKSUMMING) | |
440 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
441 | else | |
442 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
443 | if (skb->protocol == htons(ETH_P_802_2)) |
444 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 FB |
445 | len = skb->len; |
446 | netif_rx(skb); | |
447 | break; | |
448 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
449 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
450 | skb_push(skb, sizeof(struct qeth_hdr)); | |
451 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 452 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
453 | len = skb->len; |
454 | card->osn_info.data_cb(skb); | |
455 | break; | |
456 | } | |
457 | /* else unknown */ | |
4a71df50 FB |
458 | default: |
459 | dev_kfree_skb_any(skb); | |
d11ba0c4 PT |
460 | QETH_DBF_TEXT(TRACE, 3, "inbunkno"); |
461 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); | |
4a71df50 FB |
462 | continue; |
463 | } | |
464 | card->dev->last_rx = jiffies; | |
465 | card->stats.rx_packets++; | |
466 | card->stats.rx_bytes += len; | |
467 | } | |
468 | } | |
469 | ||
470 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
471 | enum qeth_ipa_cmds ipacmd, | |
472 | int (*reply_cb) (struct qeth_card *, | |
473 | struct qeth_reply*, | |
474 | unsigned long)) | |
475 | { | |
476 | struct qeth_ipa_cmd *cmd; | |
477 | struct qeth_cmd_buffer *iob; | |
478 | ||
d11ba0c4 | 479 | QETH_DBF_TEXT(TRACE, 2, "L2sdmac"); |
4a71df50 FB |
480 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
481 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
482 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
483 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
484 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
485 | } | |
486 | ||
487 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
488 | struct qeth_reply *reply, | |
489 | unsigned long data) | |
490 | { | |
491 | struct qeth_ipa_cmd *cmd; | |
492 | ||
d11ba0c4 | 493 | QETH_DBF_TEXT(TRACE, 2, "L2Smaccb"); |
4a71df50 FB |
494 | cmd = (struct qeth_ipa_cmd *) data; |
495 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 496 | QETH_DBF_TEXT_(TRACE, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 FB |
497 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
498 | cmd->hdr.return_code = -EIO; | |
499 | } else { | |
500 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
501 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
502 | OSA_ADDR_LEN); | |
74eacdb9 FB |
503 | dev_info(&card->gdev->dev, |
504 | "MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " | |
505 | "successfully registered on device %s\n", | |
506 | card->dev->dev_addr[0], card->dev->dev_addr[1], | |
507 | card->dev->dev_addr[2], card->dev->dev_addr[3], | |
508 | card->dev->dev_addr[4], card->dev->dev_addr[5], | |
509 | card->dev->name); | |
4a71df50 FB |
510 | } |
511 | return 0; | |
512 | } | |
513 | ||
514 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
515 | { | |
d11ba0c4 | 516 | QETH_DBF_TEXT(TRACE, 2, "L2Setmac"); |
4a71df50 FB |
517 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
518 | qeth_l2_send_setmac_cb); | |
519 | } | |
520 | ||
521 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
522 | struct qeth_reply *reply, | |
523 | unsigned long data) | |
524 | { | |
525 | struct qeth_ipa_cmd *cmd; | |
526 | ||
d11ba0c4 | 527 | QETH_DBF_TEXT(TRACE, 2, "L2Dmaccb"); |
4a71df50 FB |
528 | cmd = (struct qeth_ipa_cmd *) data; |
529 | if (cmd->hdr.return_code) { | |
d11ba0c4 | 530 | QETH_DBF_TEXT_(TRACE, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
531 | cmd->hdr.return_code = -EIO; |
532 | return 0; | |
533 | } | |
534 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
539 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
540 | { | |
d11ba0c4 | 541 | QETH_DBF_TEXT(TRACE, 2, "L2Delmac"); |
4a71df50 FB |
542 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
543 | return 0; | |
544 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
545 | qeth_l2_send_delmac_cb); | |
546 | } | |
547 | ||
548 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
549 | { | |
550 | int rc = 0; | |
551 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
552 | ||
d11ba0c4 PT |
553 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
554 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
555 | |
556 | rc = qeth_query_setadapterparms(card); | |
557 | if (rc) { | |
14cc21b6 FB |
558 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
559 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
560 | } |
561 | ||
f1d58672 UB |
562 | if ((card->info.type == QETH_CARD_TYPE_IQD) || |
563 | (card->info.guestlan)) { | |
4a71df50 FB |
564 | rc = qeth_setadpparms_change_macaddr(card); |
565 | if (rc) { | |
14cc21b6 FB |
566 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
567 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 568 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
569 | return rc; |
570 | } | |
d11ba0c4 | 571 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
572 | } else { |
573 | random_ether_addr(card->dev->dev_addr); | |
574 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
575 | } | |
576 | return 0; | |
577 | } | |
578 | ||
579 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
580 | { | |
581 | struct sockaddr *addr = p; | |
509e2562 | 582 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
583 | int rc = 0; |
584 | ||
d11ba0c4 | 585 | QETH_DBF_TEXT(TRACE, 3, "setmac"); |
4a71df50 FB |
586 | |
587 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
d11ba0c4 | 588 | QETH_DBF_TEXT(TRACE, 3, "setmcINV"); |
4a71df50 FB |
589 | return -EOPNOTSUPP; |
590 | } | |
591 | ||
592 | if (card->info.type == QETH_CARD_TYPE_OSN) { | |
d11ba0c4 | 593 | QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); |
4a71df50 FB |
594 | return -EOPNOTSUPP; |
595 | } | |
d11ba0c4 PT |
596 | QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); |
597 | QETH_DBF_HEX(TRACE, 3, addr->sa_data, OSA_ADDR_LEN); | |
4a71df50 FB |
598 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
599 | if (!rc) | |
600 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
601 | return rc; | |
602 | } | |
603 | ||
604 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
605 | { | |
509e2562 | 606 | struct qeth_card *card = dev->ml_priv; |
7db2266a | 607 | struct dev_addr_list *dm; |
4a71df50 FB |
608 | |
609 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
610 | return ; | |
611 | ||
d11ba0c4 | 612 | QETH_DBF_TEXT(TRACE, 3, "setmulti"); |
4a71df50 FB |
613 | qeth_l2_del_all_mc(card); |
614 | spin_lock_bh(&card->mclock); | |
615 | for (dm = dev->mc_list; dm; dm = dm->next) | |
7db2266a FB |
616 | qeth_l2_add_mc(card, dm->da_addr, 0); |
617 | ||
618 | for (dm = dev->uc_list; dm; dm = dm->next) | |
619 | qeth_l2_add_mc(card, dm->da_addr, 1); | |
620 | ||
4a71df50 FB |
621 | spin_unlock_bh(&card->mclock); |
622 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
623 | return; | |
624 | qeth_setadp_promisc_mode(card); | |
625 | } | |
626 | ||
627 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
628 | { | |
629 | int rc; | |
630 | struct qeth_hdr *hdr = NULL; | |
631 | int elements = 0; | |
509e2562 | 632 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
633 | struct sk_buff *new_skb = skb; |
634 | int ipv = qeth_get_ip_version(skb); | |
635 | int cast_type = qeth_get_cast_type(card, skb); | |
636 | struct qeth_qdio_out_q *queue = card->qdio.out_qs | |
637 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
638 | int tx_bytes = skb->len; | |
639 | enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; | |
640 | struct qeth_eddp_context *ctx = NULL; | |
683d718a FB |
641 | int data_offset = -1; |
642 | int elements_needed = 0; | |
643 | int hd_len = 0; | |
4a71df50 | 644 | |
4a71df50 FB |
645 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
646 | card->stats.tx_carrier_errors++; | |
647 | goto tx_drop; | |
648 | } | |
649 | ||
650 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
651 | (skb->protocol == htons(ETH_P_IPV6))) | |
652 | goto tx_drop; | |
653 | ||
654 | if (card->options.performance_stats) { | |
655 | card->perf_stats.outbound_cnt++; | |
656 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
657 | } | |
658 | netif_stop_queue(dev); | |
659 | ||
660 | if (skb_is_gso(skb)) | |
661 | large_send = QETH_LARGE_SEND_EDDP; | |
662 | ||
663 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
664 | hdr = (struct qeth_hdr *)skb->data; | |
665 | else { | |
683d718a FB |
666 | if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && |
667 | (skb_shinfo(skb)->nr_frags == 0)) { | |
668 | new_skb = skb; | |
669 | data_offset = ETH_HLEN; | |
670 | hd_len = ETH_HLEN; | |
671 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
672 | GFP_ATOMIC); | |
673 | if (!hdr) | |
674 | goto tx_drop; | |
675 | elements_needed++; | |
676 | skb_reset_mac_header(new_skb); | |
677 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
678 | hdr->hdr.l2.pkt_length = new_skb->len; | |
679 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
680 | skb_mac_header(new_skb), ETH_HLEN); | |
681 | } else { | |
682 | /* create a clone with writeable headroom */ | |
683 | new_skb = skb_realloc_headroom(skb, | |
684 | sizeof(struct qeth_hdr)); | |
685 | if (!new_skb) | |
686 | goto tx_drop; | |
687 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 688 | sizeof(struct qeth_hdr)); |
683d718a FB |
689 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
690 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
691 | } | |
4a71df50 FB |
692 | } |
693 | ||
694 | if (large_send == QETH_LARGE_SEND_EDDP) { | |
695 | ctx = qeth_eddp_create_context(card, new_skb, hdr, | |
696 | skb->sk->sk_protocol); | |
697 | if (ctx == NULL) { | |
14cc21b6 | 698 | QETH_DBF_MESSAGE(2, "could not create eddp context\n"); |
4a71df50 FB |
699 | goto tx_drop; |
700 | } | |
701 | } else { | |
683d718a FB |
702 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
703 | elements_needed); | |
704 | if (!elements) { | |
705 | if (data_offset >= 0) | |
706 | kmem_cache_free(qeth_core_header_cache, hdr); | |
4a71df50 | 707 | goto tx_drop; |
683d718a | 708 | } |
4a71df50 FB |
709 | } |
710 | ||
711 | if ((large_send == QETH_LARGE_SEND_NO) && | |
712 | (skb->ip_summed == CHECKSUM_PARTIAL)) | |
713 | qeth_tx_csum(new_skb); | |
714 | ||
715 | if (card->info.type != QETH_CARD_TYPE_IQD) | |
716 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, | |
717 | elements, ctx); | |
718 | else | |
719 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, | |
683d718a | 720 | elements, ctx, data_offset, hd_len); |
4a71df50 FB |
721 | if (!rc) { |
722 | card->stats.tx_packets++; | |
723 | card->stats.tx_bytes += tx_bytes; | |
724 | if (new_skb != skb) | |
725 | dev_kfree_skb_any(skb); | |
726 | if (card->options.performance_stats) { | |
727 | if (large_send != QETH_LARGE_SEND_NO) { | |
728 | card->perf_stats.large_send_bytes += tx_bytes; | |
729 | card->perf_stats.large_send_cnt++; | |
730 | } | |
731 | if (skb_shinfo(new_skb)->nr_frags > 0) { | |
732 | card->perf_stats.sg_skbs_sent++; | |
733 | /* nr_frags + skb->data */ | |
734 | card->perf_stats.sg_frags_sent += | |
735 | skb_shinfo(new_skb)->nr_frags + 1; | |
736 | } | |
737 | } | |
738 | ||
739 | if (ctx != NULL) { | |
740 | qeth_eddp_put_context(ctx); | |
741 | dev_kfree_skb_any(new_skb); | |
742 | } | |
743 | } else { | |
744 | if (ctx != NULL) | |
745 | qeth_eddp_put_context(ctx); | |
746 | ||
683d718a FB |
747 | if (data_offset >= 0) |
748 | kmem_cache_free(qeth_core_header_cache, hdr); | |
749 | ||
4a71df50 FB |
750 | if (rc == -EBUSY) { |
751 | if (new_skb != skb) | |
752 | dev_kfree_skb_any(new_skb); | |
753 | return NETDEV_TX_BUSY; | |
754 | } else | |
755 | goto tx_drop; | |
756 | } | |
757 | ||
758 | netif_wake_queue(dev); | |
759 | if (card->options.performance_stats) | |
760 | card->perf_stats.outbound_time += qeth_get_micros() - | |
761 | card->perf_stats.outbound_start_time; | |
762 | return rc; | |
763 | ||
764 | tx_drop: | |
765 | card->stats.tx_dropped++; | |
766 | card->stats.tx_errors++; | |
767 | if ((new_skb != skb) && new_skb) | |
768 | dev_kfree_skb_any(new_skb); | |
769 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 770 | netif_wake_queue(dev); |
4a71df50 FB |
771 | return NETDEV_TX_OK; |
772 | } | |
773 | ||
774 | static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, | |
779e6e1c | 775 | unsigned int qdio_err, unsigned int queue, |
4a71df50 FB |
776 | int first_element, int count, unsigned long card_ptr) |
777 | { | |
778 | struct net_device *net_dev; | |
779 | struct qeth_card *card; | |
780 | struct qeth_qdio_buffer *buffer; | |
781 | int index; | |
782 | int i; | |
783 | ||
4a71df50 FB |
784 | card = (struct qeth_card *) card_ptr; |
785 | net_dev = card->dev; | |
786 | if (card->options.performance_stats) { | |
787 | card->perf_stats.inbound_cnt++; | |
788 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
789 | } | |
779e6e1c JG |
790 | if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
791 | QETH_DBF_TEXT(TRACE, 1, "qdinchk"); | |
792 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); | |
793 | QETH_DBF_TEXT_(TRACE, 1, "%04X%04X", first_element, | |
794 | count); | |
795 | QETH_DBF_TEXT_(TRACE, 1, "%04X", queue); | |
796 | qeth_schedule_recovery(card); | |
797 | return; | |
4a71df50 FB |
798 | } |
799 | for (i = first_element; i < (first_element + count); ++i) { | |
800 | index = i % QDIO_MAX_BUFFERS_PER_Q; | |
801 | buffer = &card->qdio.in_q->bufs[index]; | |
779e6e1c JG |
802 | if (!(qdio_err && |
803 | qeth_check_qdio_errors(buffer->buffer, qdio_err, "qinerr"))) | |
4a71df50 FB |
804 | qeth_l2_process_inbound_buffer(card, buffer, index); |
805 | /* clear buffer and give back to hardware */ | |
806 | qeth_put_buffer_pool_entry(card, buffer->pool_entry); | |
807 | qeth_queue_input_buffer(card, index); | |
808 | } | |
809 | if (card->options.performance_stats) | |
810 | card->perf_stats.inbound_time += qeth_get_micros() - | |
811 | card->perf_stats.inbound_start_time; | |
812 | } | |
813 | ||
814 | static int qeth_l2_open(struct net_device *dev) | |
815 | { | |
509e2562 | 816 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 817 | |
d11ba0c4 | 818 | QETH_DBF_TEXT(TRACE, 4, "qethopen"); |
4a71df50 FB |
819 | if (card->state != CARD_STATE_SOFTSETUP) |
820 | return -ENODEV; | |
821 | ||
822 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
823 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
d11ba0c4 | 824 | QETH_DBF_TEXT(TRACE, 4, "nomacadr"); |
4a71df50 FB |
825 | return -EPERM; |
826 | } | |
827 | card->data.state = CH_STATE_UP; | |
828 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
829 | netif_start_queue(dev); |
830 | ||
831 | if (!card->lan_online && netif_carrier_ok(dev)) | |
832 | netif_carrier_off(dev); | |
833 | return 0; | |
834 | } | |
835 | ||
836 | ||
837 | static int qeth_l2_stop(struct net_device *dev) | |
838 | { | |
509e2562 | 839 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 840 | |
d11ba0c4 | 841 | QETH_DBF_TEXT(TRACE, 4, "qethstop"); |
4a71df50 | 842 | netif_tx_disable(dev); |
4a71df50 FB |
843 | if (card->state == CARD_STATE_UP) |
844 | card->state = CARD_STATE_SOFTSETUP; | |
845 | return 0; | |
846 | } | |
847 | ||
848 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
849 | { | |
850 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
851 | ||
852 | INIT_LIST_HEAD(&card->vid_list); | |
853 | INIT_LIST_HEAD(&card->mc_list); | |
854 | card->options.layer2 = 1; | |
855 | card->discipline.input_handler = (qdio_handler_t *) | |
856 | qeth_l2_qdio_input_handler; | |
857 | card->discipline.output_handler = (qdio_handler_t *) | |
858 | qeth_qdio_output_handler; | |
859 | card->discipline.recover = qeth_l2_recover; | |
860 | return 0; | |
861 | } | |
862 | ||
863 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
864 | { | |
865 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
866 | ||
867 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
868 | ||
869 | if (cgdev->state == CCWGROUP_ONLINE) { | |
870 | card->use_hard_stop = 1; | |
871 | qeth_l2_set_offline(cgdev); | |
872 | } | |
873 | ||
874 | if (card->dev) { | |
875 | unregister_netdev(card->dev); | |
876 | card->dev = NULL; | |
877 | } | |
878 | ||
879 | qeth_l2_del_all_mc(card); | |
880 | return; | |
881 | } | |
882 | ||
efe3df6f FB |
883 | static int qeth_l2_ethtool_set_tso(struct net_device *dev, u32 data) |
884 | { | |
509e2562 | 885 | struct qeth_card *card = dev->ml_priv; |
efe3df6f FB |
886 | |
887 | if (data) { | |
888 | if (card->options.large_send == QETH_LARGE_SEND_NO) { | |
889 | card->options.large_send = QETH_LARGE_SEND_EDDP; | |
890 | dev->features |= NETIF_F_TSO; | |
891 | } | |
892 | } else { | |
893 | dev->features &= ~NETIF_F_TSO; | |
894 | card->options.large_send = QETH_LARGE_SEND_NO; | |
895 | } | |
896 | return 0; | |
897 | } | |
898 | ||
4a71df50 FB |
899 | static struct ethtool_ops qeth_l2_ethtool_ops = { |
900 | .get_link = ethtool_op_get_link, | |
901 | .get_tx_csum = ethtool_op_get_tx_csum, | |
902 | .set_tx_csum = ethtool_op_set_tx_hw_csum, | |
903 | .get_sg = ethtool_op_get_sg, | |
904 | .set_sg = ethtool_op_set_sg, | |
905 | .get_tso = ethtool_op_get_tso, | |
efe3df6f | 906 | .set_tso = qeth_l2_ethtool_set_tso, |
4a71df50 FB |
907 | .get_strings = qeth_core_get_strings, |
908 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
909 | .get_stats_count = qeth_core_get_stats_count, | |
910 | .get_drvinfo = qeth_core_get_drvinfo, | |
3f9975aa | 911 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
912 | }; |
913 | ||
914 | static struct ethtool_ops qeth_l2_osn_ops = { | |
915 | .get_strings = qeth_core_get_strings, | |
916 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
917 | .get_stats_count = qeth_core_get_stats_count, | |
918 | .get_drvinfo = qeth_core_get_drvinfo, | |
919 | }; | |
920 | ||
921 | static int qeth_l2_setup_netdev(struct qeth_card *card) | |
922 | { | |
923 | switch (card->info.type) { | |
924 | case QETH_CARD_TYPE_OSAE: | |
925 | card->dev = alloc_etherdev(0); | |
926 | break; | |
927 | case QETH_CARD_TYPE_IQD: | |
928 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
929 | break; | |
930 | case QETH_CARD_TYPE_OSN: | |
931 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
932 | card->dev->flags |= IFF_NOARP; | |
933 | break; | |
934 | default: | |
935 | card->dev = alloc_etherdev(0); | |
936 | } | |
937 | ||
938 | if (!card->dev) | |
939 | return -ENODEV; | |
940 | ||
509e2562 | 941 | card->dev->ml_priv = card; |
4a71df50 FB |
942 | card->dev->tx_timeout = &qeth_tx_timeout; |
943 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; | |
944 | card->dev->open = qeth_l2_open; | |
945 | card->dev->stop = qeth_l2_stop; | |
946 | card->dev->hard_start_xmit = qeth_l2_hard_start_xmit; | |
947 | card->dev->do_ioctl = qeth_l2_do_ioctl; | |
948 | card->dev->get_stats = qeth_get_stats; | |
949 | card->dev->change_mtu = qeth_change_mtu; | |
950 | card->dev->set_multicast_list = qeth_l2_set_multicast_list; | |
951 | card->dev->vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid; | |
952 | card->dev->vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid; | |
953 | card->dev->set_mac_address = qeth_l2_set_mac_address; | |
954 | card->dev->mtu = card->info.initial_mtu; | |
955 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
956 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
957 | else | |
958 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
959 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
960 | card->info.broadcast_capable = 1; | |
961 | qeth_l2_request_initial_mac(card); | |
962 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
963 | return register_netdev(card->dev); | |
964 | } | |
965 | ||
966 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
967 | { | |
968 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
969 | int rc = 0; | |
970 | enum qeth_card_states recover_flag; | |
971 | ||
972 | BUG_ON(!card); | |
d11ba0c4 PT |
973 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
974 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
975 | |
976 | qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); | |
4a71df50 FB |
977 | recover_flag = card->state; |
978 | rc = ccw_device_set_online(CARD_RDEV(card)); | |
979 | if (rc) { | |
d11ba0c4 | 980 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
981 | return -EIO; |
982 | } | |
983 | rc = ccw_device_set_online(CARD_WDEV(card)); | |
984 | if (rc) { | |
d11ba0c4 | 985 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
986 | return -EIO; |
987 | } | |
988 | rc = ccw_device_set_online(CARD_DDEV(card)); | |
989 | if (rc) { | |
d11ba0c4 | 990 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
991 | return -EIO; |
992 | } | |
993 | ||
994 | rc = qeth_core_hardsetup_card(card); | |
995 | if (rc) { | |
d11ba0c4 | 996 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
4a71df50 FB |
997 | goto out_remove; |
998 | } | |
999 | ||
1000 | if (!card->dev && qeth_l2_setup_netdev(card)) | |
1001 | goto out_remove; | |
1002 | ||
1003 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
1004 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
1005 | ||
1006 | card->state = CARD_STATE_HARDSETUP; | |
1007 | qeth_print_status_message(card); | |
1008 | ||
1009 | /* softsetup */ | |
d11ba0c4 | 1010 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
1011 | |
1012 | rc = qeth_send_startlan(card); | |
1013 | if (rc) { | |
d11ba0c4 | 1014 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 1015 | if (rc == 0xe080) { |
74eacdb9 FB |
1016 | dev_warn(&card->gdev->dev, |
1017 | "The LAN is offline\n"); | |
4a71df50 FB |
1018 | card->lan_online = 0; |
1019 | } | |
1020 | return rc; | |
1021 | } else | |
1022 | card->lan_online = 1; | |
1023 | ||
1024 | if (card->info.type != QETH_CARD_TYPE_OSN) { | |
1025 | qeth_set_large_send(card, card->options.large_send); | |
1026 | qeth_l2_process_vlans(card, 0); | |
1027 | } | |
1028 | ||
1029 | netif_tx_disable(card->dev); | |
1030 | ||
1031 | rc = qeth_init_qdio_queues(card); | |
1032 | if (rc) { | |
d11ba0c4 | 1033 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
4a71df50 FB |
1034 | goto out_remove; |
1035 | } | |
1036 | card->state = CARD_STATE_SOFTSETUP; | |
1037 | netif_carrier_on(card->dev); | |
1038 | ||
1039 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1040 | if (recover_flag == CARD_STATE_RECOVER) { | |
1041 | if (recovery_mode && | |
1042 | card->info.type != QETH_CARD_TYPE_OSN) { | |
1043 | qeth_l2_open(card->dev); | |
1044 | } else { | |
1045 | rtnl_lock(); | |
1046 | dev_open(card->dev); | |
1047 | rtnl_unlock(); | |
1048 | } | |
1049 | /* this also sets saved unicast addresses */ | |
1050 | qeth_l2_set_multicast_list(card->dev); | |
1051 | } | |
1052 | /* let user_space know that device is online */ | |
1053 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
1054 | return 0; | |
1055 | out_remove: | |
1056 | card->use_hard_stop = 1; | |
1057 | qeth_l2_stop_card(card, 0); | |
1058 | ccw_device_set_offline(CARD_DDEV(card)); | |
1059 | ccw_device_set_offline(CARD_WDEV(card)); | |
1060 | ccw_device_set_offline(CARD_RDEV(card)); | |
1061 | if (recover_flag == CARD_STATE_RECOVER) | |
1062 | card->state = CARD_STATE_RECOVER; | |
1063 | else | |
1064 | card->state = CARD_STATE_DOWN; | |
1065 | return -ENODEV; | |
1066 | } | |
1067 | ||
1068 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1069 | { | |
1070 | return __qeth_l2_set_online(gdev, 0); | |
1071 | } | |
1072 | ||
1073 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1074 | int recovery_mode) | |
1075 | { | |
1076 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1077 | int rc = 0, rc2 = 0, rc3 = 0; | |
1078 | enum qeth_card_states recover_flag; | |
1079 | ||
d11ba0c4 PT |
1080 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1081 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1082 | |
1083 | if (card->dev && netif_carrier_ok(card->dev)) | |
1084 | netif_carrier_off(card->dev); | |
1085 | recover_flag = card->state; | |
0f5623c9 | 1086 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1087 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1088 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1089 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1090 | if (!rc) | |
1091 | rc = (rc2) ? rc2 : rc3; | |
1092 | if (rc) | |
d11ba0c4 | 1093 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1094 | if (recover_flag == CARD_STATE_UP) |
1095 | card->state = CARD_STATE_RECOVER; | |
1096 | /* let user_space know that device is offline */ | |
1097 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
1098 | return 0; | |
1099 | } | |
1100 | ||
1101 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1102 | { | |
1103 | return __qeth_l2_set_offline(cgdev, 0); | |
1104 | } | |
1105 | ||
1106 | static int qeth_l2_recover(void *ptr) | |
1107 | { | |
1108 | struct qeth_card *card; | |
1109 | int rc = 0; | |
1110 | ||
1111 | card = (struct qeth_card *) ptr; | |
d11ba0c4 PT |
1112 | QETH_DBF_TEXT(TRACE, 2, "recover1"); |
1113 | QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *)); | |
4a71df50 FB |
1114 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1115 | return 0; | |
d11ba0c4 | 1116 | QETH_DBF_TEXT(TRACE, 2, "recover2"); |
74eacdb9 FB |
1117 | dev_warn(&card->gdev->dev, |
1118 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1119 | card->use_hard_stop = 1; |
1120 | __qeth_l2_set_offline(card->gdev, 1); | |
1121 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1122 | /* don't run another scheduled recovery */ | |
1123 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); | |
1124 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
1125 | if (!rc) | |
74eacdb9 FB |
1126 | dev_info(&card->gdev->dev, |
1127 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1128 | else { |
fc9c2460 UB |
1129 | if (card->dev) { |
1130 | rtnl_lock(); | |
1131 | dev_close(card->dev); | |
1132 | rtnl_unlock(); | |
1133 | } | |
74eacdb9 FB |
1134 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1135 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1136 | } |
4a71df50 FB |
1137 | return 0; |
1138 | } | |
1139 | ||
1140 | static int __init qeth_l2_init(void) | |
1141 | { | |
74eacdb9 | 1142 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1143 | return 0; |
1144 | } | |
1145 | ||
1146 | static void __exit qeth_l2_exit(void) | |
1147 | { | |
74eacdb9 | 1148 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1149 | } |
1150 | ||
1151 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1152 | { | |
1153 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1154 | qeth_qdio_clear_card(card, 0); | |
1155 | qeth_clear_qdio_buffers(card); | |
1156 | } | |
1157 | ||
1158 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { | |
1159 | .probe = qeth_l2_probe_device, | |
1160 | .remove = qeth_l2_remove_device, | |
1161 | .set_online = qeth_l2_set_online, | |
1162 | .set_offline = qeth_l2_set_offline, | |
1163 | .shutdown = qeth_l2_shutdown, | |
1164 | }; | |
1165 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1166 | ||
1167 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1168 | struct qeth_cmd_buffer *iob) | |
1169 | { | |
1170 | unsigned long flags; | |
1171 | int rc = 0; | |
1172 | ||
d11ba0c4 | 1173 | QETH_DBF_TEXT(TRACE, 5, "osndctrd"); |
4a71df50 FB |
1174 | |
1175 | wait_event(card->wait_q, | |
1176 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1177 | qeth_prepare_control_data(card, len, iob); | |
d11ba0c4 | 1178 | QETH_DBF_TEXT(TRACE, 6, "osnoirqp"); |
4a71df50 FB |
1179 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1180 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1181 | (addr_t) iob, 0, 0); | |
1182 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1183 | if (rc) { | |
14cc21b6 | 1184 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1185 | "ccw_device_start rc = %i\n", rc); |
d11ba0c4 | 1186 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
4a71df50 FB |
1187 | qeth_release_buffer(iob->channel, iob); |
1188 | atomic_set(&card->write.irq_pending, 0); | |
1189 | wake_up(&card->wait_q); | |
1190 | } | |
1191 | return rc; | |
1192 | } | |
1193 | ||
1194 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1195 | struct qeth_cmd_buffer *iob, int data_len) | |
1196 | { | |
1197 | u16 s1, s2; | |
1198 | ||
d11ba0c4 | 1199 | QETH_DBF_TEXT(TRACE, 4, "osndipa"); |
4a71df50 FB |
1200 | |
1201 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1202 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1203 | s2 = (u16)data_len; | |
1204 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1205 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1206 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1207 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1208 | return qeth_osn_send_control_data(card, s1, iob); | |
1209 | } | |
1210 | ||
1211 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1212 | { | |
1213 | struct qeth_cmd_buffer *iob; | |
1214 | struct qeth_card *card; | |
1215 | int rc; | |
1216 | ||
d11ba0c4 | 1217 | QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); |
4a71df50 FB |
1218 | if (!dev) |
1219 | return -ENODEV; | |
509e2562 | 1220 | card = dev->ml_priv; |
4a71df50 FB |
1221 | if (!card) |
1222 | return -ENODEV; | |
1223 | if ((card->state != CARD_STATE_UP) && | |
1224 | (card->state != CARD_STATE_SOFTSETUP)) | |
1225 | return -ENODEV; | |
1226 | iob = qeth_wait_for_buffer(&card->write); | |
1227 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1228 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1229 | return rc; | |
1230 | } | |
1231 | EXPORT_SYMBOL(qeth_osn_assist); | |
1232 | ||
1233 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1234 | int (*assist_cb)(struct net_device *, void *), | |
1235 | int (*data_cb)(struct sk_buff *)) | |
1236 | { | |
1237 | struct qeth_card *card; | |
1238 | ||
d11ba0c4 | 1239 | QETH_DBF_TEXT(TRACE, 2, "osnreg"); |
4a71df50 FB |
1240 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1241 | if (*dev == NULL) | |
1242 | return -ENODEV; | |
509e2562 | 1243 | card = (*dev)->ml_priv; |
4a71df50 FB |
1244 | if (!card) |
1245 | return -ENODEV; | |
1246 | if ((assist_cb == NULL) || (data_cb == NULL)) | |
1247 | return -EINVAL; | |
1248 | card->osn_info.assist_cb = assist_cb; | |
1249 | card->osn_info.data_cb = data_cb; | |
1250 | return 0; | |
1251 | } | |
1252 | EXPORT_SYMBOL(qeth_osn_register); | |
1253 | ||
1254 | void qeth_osn_deregister(struct net_device *dev) | |
1255 | { | |
1256 | struct qeth_card *card; | |
1257 | ||
d11ba0c4 | 1258 | QETH_DBF_TEXT(TRACE, 2, "osndereg"); |
4a71df50 FB |
1259 | if (!dev) |
1260 | return; | |
509e2562 | 1261 | card = dev->ml_priv; |
4a71df50 FB |
1262 | if (!card) |
1263 | return; | |
1264 | card->osn_info.assist_cb = NULL; | |
1265 | card->osn_info.data_cb = NULL; | |
1266 | return; | |
1267 | } | |
1268 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1269 | ||
1270 | module_init(qeth_l2_init); | |
1271 | module_exit(qeth_l2_exit); | |
1272 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1273 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1274 | MODULE_LICENSE("GPL"); |