Commit | Line | Data |
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4a71df50 FB |
1 | /* |
2 | * drivers/s390/net/qeth_l2_main.c | |
3 | * | |
bbcfcdc8 | 4 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
6 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
7 | * Thomas Spatzier <tspat@de.ibm.com>, | |
8 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
9 | */ | |
10 | ||
74eacdb9 FB |
11 | #define KMSG_COMPONENT "qeth" |
12 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
13 | ||
4a71df50 FB |
14 | #include <linux/module.h> |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/kernel.h> | |
5a0e3ad6 | 19 | #include <linux/slab.h> |
4a71df50 FB |
20 | #include <linux/etherdevice.h> |
21 | #include <linux/mii.h> | |
22 | #include <linux/ip.h> | |
ccffad25 | 23 | #include <linux/list.h> |
4a71df50 | 24 | |
4a71df50 | 25 | #include "qeth_core.h" |
4a71df50 | 26 | |
4a71df50 FB |
27 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
28 | static int qeth_l2_stop(struct net_device *); | |
29 | static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); | |
30 | static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, | |
31 | enum qeth_ipa_cmds, | |
32 | int (*reply_cb) (struct qeth_card *, | |
33 | struct qeth_reply*, | |
34 | unsigned long)); | |
35 | static void qeth_l2_set_multicast_list(struct net_device *); | |
36 | static int qeth_l2_recover(void *); | |
37 | ||
38 | static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
39 | { | |
509e2562 | 40 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
41 | struct mii_ioctl_data *mii_data; |
42 | int rc = 0; | |
43 | ||
44 | if (!card) | |
45 | return -ENODEV; | |
46 | ||
47 | if ((card->state != CARD_STATE_UP) && | |
48 | (card->state != CARD_STATE_SOFTSETUP)) | |
49 | return -ENODEV; | |
50 | ||
51 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
52 | return -EPERM; | |
53 | ||
54 | switch (cmd) { | |
55 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
56 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
57 | break; | |
58 | case SIOC_QETH_GET_CARD_TYPE: | |
5113fec0 UB |
59 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
60 | card->info.type == QETH_CARD_TYPE_OSM || | |
61 | card->info.type == QETH_CARD_TYPE_OSX) && | |
4a71df50 FB |
62 | !card->info.guestlan) |
63 | return 1; | |
64 | return 0; | |
65 | break; | |
66 | case SIOCGMIIPHY: | |
67 | mii_data = if_mii(rq); | |
68 | mii_data->phy_id = 0; | |
69 | break; | |
70 | case SIOCGMIIREG: | |
71 | mii_data = if_mii(rq); | |
72 | if (mii_data->phy_id != 0) | |
73 | rc = -EINVAL; | |
74 | else | |
75 | mii_data->val_out = qeth_mdio_read(dev, | |
76 | mii_data->phy_id, mii_data->reg_num); | |
77 | break; | |
78 | default: | |
79 | rc = -EOPNOTSUPP; | |
80 | } | |
81 | if (rc) | |
847a50fd | 82 | QETH_CARD_TEXT_(card, 2, "ioce%d", rc); |
4a71df50 FB |
83 | return rc; |
84 | } | |
85 | ||
86 | static int qeth_l2_verify_dev(struct net_device *dev) | |
87 | { | |
88 | struct qeth_card *card; | |
89 | unsigned long flags; | |
90 | int rc = 0; | |
91 | ||
92 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
93 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
94 | if (card->dev == dev) { | |
95 | rc = QETH_REAL_CARD; | |
96 | break; | |
97 | } | |
98 | } | |
99 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
100 | ||
101 | return rc; | |
102 | } | |
103 | ||
104 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) | |
105 | { | |
106 | struct qeth_card *card; | |
107 | struct net_device *ndev; | |
f06f6f32 | 108 | __u16 temp_dev_no; |
4a71df50 | 109 | unsigned long flags; |
f06f6f32 | 110 | struct ccw_dev_id read_devid; |
4a71df50 FB |
111 | |
112 | ndev = NULL; | |
113 | memcpy(&temp_dev_no, read_dev_no, 2); | |
114 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
115 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
116 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
117 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
118 | ndev = card->dev; |
119 | break; | |
120 | } | |
121 | } | |
122 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
123 | return ndev; | |
124 | } | |
125 | ||
126 | static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, | |
127 | struct qeth_reply *reply, | |
128 | unsigned long data) | |
129 | { | |
130 | struct qeth_ipa_cmd *cmd; | |
131 | __u8 *mac; | |
132 | ||
847a50fd | 133 | QETH_CARD_TEXT(card, 2, "L2Sgmacb"); |
4a71df50 FB |
134 | cmd = (struct qeth_ipa_cmd *) data; |
135 | mac = &cmd->data.setdelmac.mac[0]; | |
136 | /* MAC already registered, needed in couple/uncouple case */ | |
0666eb06 | 137 | if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { |
7c510e4b JB |
138 | QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
139 | mac, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
140 | cmd->hdr.return_code = 0; |
141 | } | |
142 | if (cmd->hdr.return_code) | |
7c510e4b JB |
143 | QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
144 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
145 | return 0; |
146 | } | |
147 | ||
148 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
149 | { | |
847a50fd | 150 | QETH_CARD_TEXT(card, 2, "L2Sgmac"); |
4a71df50 FB |
151 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
152 | qeth_l2_send_setgroupmac_cb); | |
153 | } | |
154 | ||
155 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
156 | struct qeth_reply *reply, | |
157 | unsigned long data) | |
158 | { | |
159 | struct qeth_ipa_cmd *cmd; | |
160 | __u8 *mac; | |
161 | ||
847a50fd | 162 | QETH_CARD_TEXT(card, 2, "L2Dgmacb"); |
4a71df50 FB |
163 | cmd = (struct qeth_ipa_cmd *) data; |
164 | mac = &cmd->data.setdelmac.mac[0]; | |
165 | if (cmd->hdr.return_code) | |
7c510e4b JB |
166 | QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
167 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
168 | return 0; |
169 | } | |
170 | ||
171 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
172 | { | |
847a50fd | 173 | QETH_CARD_TEXT(card, 2, "L2Dgmac"); |
4a71df50 FB |
174 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
175 | qeth_l2_send_delgroupmac_cb); | |
176 | } | |
177 | ||
7db2266a | 178 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
4a71df50 FB |
179 | { |
180 | struct qeth_mc_mac *mc; | |
7db2266a | 181 | int rc; |
4a71df50 FB |
182 | |
183 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
184 | ||
14cc21b6 | 185 | if (!mc) |
4a71df50 | 186 | return; |
4a71df50 FB |
187 | |
188 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
189 | mc->mc_addrlen = OSA_ADDR_LEN; | |
7db2266a FB |
190 | mc->is_vmac = vmac; |
191 | ||
192 | if (vmac) { | |
193 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, | |
194 | NULL); | |
195 | } else { | |
196 | rc = qeth_l2_send_setgroupmac(card, mac); | |
197 | } | |
4a71df50 | 198 | |
7db2266a | 199 | if (!rc) |
4a71df50 FB |
200 | list_add_tail(&mc->list, &card->mc_list); |
201 | else | |
202 | kfree(mc); | |
203 | } | |
204 | ||
205 | static void qeth_l2_del_all_mc(struct qeth_card *card) | |
206 | { | |
207 | struct qeth_mc_mac *mc, *tmp; | |
208 | ||
209 | spin_lock_bh(&card->mclock); | |
210 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
7db2266a FB |
211 | if (mc->is_vmac) |
212 | qeth_l2_send_setdelmac(card, mc->mc_addr, | |
213 | IPA_CMD_DELVMAC, NULL); | |
214 | else | |
215 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
4a71df50 FB |
216 | list_del(&mc->list); |
217 | kfree(mc); | |
218 | } | |
219 | spin_unlock_bh(&card->mclock); | |
220 | } | |
221 | ||
ce73e10e KDW |
222 | static inline int qeth_l2_get_cast_type(struct qeth_card *card, |
223 | struct sk_buff *skb) | |
4a71df50 | 224 | { |
ce73e10e KDW |
225 | if (card->info.type == QETH_CARD_TYPE_OSN) |
226 | return RTN_UNSPEC; | |
227 | if (is_broadcast_ether_addr(skb->data)) | |
228 | return RTN_BROADCAST; | |
229 | if (is_multicast_ether_addr(skb->data)) | |
230 | return RTN_MULTICAST; | |
231 | return RTN_UNSPEC; | |
4a71df50 FB |
232 | } |
233 | ||
234 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
235 | struct sk_buff *skb, int ipv, int cast_type) | |
236 | { | |
683d718a | 237 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
238 | |
239 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
240 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
241 | ||
242 | /* set byte byte 3 to casting flags */ | |
243 | if (cast_type == RTN_MULTICAST) | |
244 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
245 | else if (cast_type == RTN_BROADCAST) | |
246 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
247 | else | |
ce73e10e | 248 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
4a71df50 FB |
249 | |
250 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
251 | /* VSWITCH relies on the VLAN | |
252 | * information to be present in | |
253 | * the QDIO header */ | |
254 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
255 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
256 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
257 | } | |
258 | } | |
259 | ||
260 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
261 | struct qeth_reply *reply, unsigned long data) | |
262 | { | |
263 | struct qeth_ipa_cmd *cmd; | |
264 | ||
847a50fd | 265 | QETH_CARD_TEXT(card, 2, "L2sdvcb"); |
4a71df50 FB |
266 | cmd = (struct qeth_ipa_cmd *) data; |
267 | if (cmd->hdr.return_code) { | |
14cc21b6 | 268 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
269 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
270 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
847a50fd CO |
271 | QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); |
272 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
273 | } |
274 | return 0; | |
275 | } | |
276 | ||
277 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
278 | enum qeth_ipa_cmds ipacmd) | |
279 | { | |
280 | struct qeth_ipa_cmd *cmd; | |
281 | struct qeth_cmd_buffer *iob; | |
282 | ||
847a50fd | 283 | QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
284 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
285 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
286 | cmd->data.setdelvlan.vlan_id = i; | |
287 | return qeth_send_ipa_cmd(card, iob, | |
288 | qeth_l2_send_setdelvlan_cb, NULL); | |
289 | } | |
290 | ||
291 | static void qeth_l2_process_vlans(struct qeth_card *card, int clear) | |
292 | { | |
293 | struct qeth_vlan_vid *id; | |
847a50fd | 294 | QETH_CARD_TEXT(card, 3, "L2prcvln"); |
4a71df50 FB |
295 | spin_lock_bh(&card->vlanlock); |
296 | list_for_each_entry(id, &card->vid_list, list) { | |
297 | if (clear) | |
298 | qeth_l2_send_setdelvlan(card, id->vid, | |
299 | IPA_CMD_DELVLAN); | |
300 | else | |
301 | qeth_l2_send_setdelvlan(card, id->vid, | |
302 | IPA_CMD_SETVLAN); | |
303 | } | |
304 | spin_unlock_bh(&card->vlanlock); | |
305 | } | |
306 | ||
307 | static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
308 | { | |
509e2562 | 309 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
310 | struct qeth_vlan_vid *id; |
311 | ||
847a50fd | 312 | QETH_CARD_TEXT_(card, 4, "aid:%d", vid); |
10651db7 UB |
313 | if (!vid) |
314 | return; | |
5113fec0 | 315 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 316 | QETH_CARD_TEXT(card, 3, "aidOSM"); |
5113fec0 UB |
317 | return; |
318 | } | |
8e98ac48 | 319 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 320 | QETH_CARD_TEXT(card, 3, "aidREC"); |
8e98ac48 UB |
321 | return; |
322 | } | |
4a71df50 FB |
323 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
324 | if (id) { | |
325 | id->vid = vid; | |
326 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
327 | spin_lock_bh(&card->vlanlock); | |
328 | list_add_tail(&id->list, &card->vid_list); | |
329 | spin_unlock_bh(&card->vlanlock); | |
4a71df50 FB |
330 | } |
331 | } | |
332 | ||
333 | static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
334 | { | |
335 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 336 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 337 | |
847a50fd | 338 | QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
5113fec0 | 339 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 340 | QETH_CARD_TEXT(card, 3, "kidOSM"); |
5113fec0 UB |
341 | return; |
342 | } | |
8e98ac48 | 343 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 344 | QETH_CARD_TEXT(card, 3, "kidREC"); |
8e98ac48 UB |
345 | return; |
346 | } | |
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); | |
4a71df50 FB |
371 | if (card->read.state == CH_STATE_UP && |
372 | card->write.state == CH_STATE_UP && | |
373 | (card->state == CARD_STATE_UP)) { | |
374 | if (recovery_mode && | |
375 | card->info.type != QETH_CARD_TYPE_OSN) { | |
376 | qeth_l2_stop(card->dev); | |
377 | } else { | |
378 | rtnl_lock(); | |
379 | dev_close(card->dev); | |
380 | rtnl_unlock(); | |
381 | } | |
932e1583 KDW |
382 | if (!card->use_hard_stop || |
383 | recovery_mode) { | |
4a71df50 FB |
384 | __u8 *mac = &card->dev->dev_addr[0]; |
385 | rc = qeth_l2_send_delmac(card, mac); | |
d11ba0c4 | 386 | QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc); |
4a71df50 FB |
387 | } |
388 | card->state = CARD_STATE_SOFTSETUP; | |
389 | } | |
390 | if (card->state == CARD_STATE_SOFTSETUP) { | |
391 | qeth_l2_process_vlans(card, 1); | |
932e1583 KDW |
392 | if (!card->use_hard_stop || |
393 | recovery_mode) | |
28a7e4c9 | 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 | ||
a1c3ed4c FB |
412 | static int qeth_l2_process_inbound_buffer(struct qeth_card *card, |
413 | int budget, int *done) | |
4a71df50 | 414 | { |
a1c3ed4c | 415 | int work_done = 0; |
4a71df50 FB |
416 | struct sk_buff *skb; |
417 | struct qeth_hdr *hdr; | |
4a71df50 FB |
418 | unsigned int len; |
419 | ||
a1c3ed4c FB |
420 | *done = 0; |
421 | BUG_ON(!budget); | |
422 | while (budget) { | |
423 | skb = qeth_core_get_next_skb(card, | |
424 | card->qdio.in_q->bufs[card->rx.b_index].buffer, | |
425 | &card->rx.b_element, &card->rx.e_offset, &hdr); | |
426 | if (!skb) { | |
427 | *done = 1; | |
428 | break; | |
4a71df50 | 429 | } |
a1c3ed4c | 430 | skb->dev = card->dev; |
4a71df50 FB |
431 | switch (hdr->hdr.l2.id) { |
432 | case QETH_HEADER_TYPE_LAYER2: | |
433 | skb->pkt_type = PACKET_HOST; | |
434 | skb->protocol = eth_type_trans(skb, skb->dev); | |
435 | if (card->options.checksum_type == NO_CHECKSUMMING) | |
436 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
437 | else | |
438 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
439 | if (skb->protocol == htons(ETH_P_802_2)) |
440 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 | 441 | len = skb->len; |
a1c3ed4c | 442 | netif_receive_skb(skb); |
4a71df50 FB |
443 | break; |
444 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
445 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
446 | skb_push(skb, sizeof(struct qeth_hdr)); | |
447 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 448 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
449 | len = skb->len; |
450 | card->osn_info.data_cb(skb); | |
451 | break; | |
452 | } | |
453 | /* else unknown */ | |
4a71df50 FB |
454 | default: |
455 | dev_kfree_skb_any(skb); | |
847a50fd | 456 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
d11ba0c4 | 457 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
458 | continue; |
459 | } | |
a1c3ed4c FB |
460 | work_done++; |
461 | budget--; | |
4a71df50 FB |
462 | card->stats.rx_packets++; |
463 | card->stats.rx_bytes += len; | |
464 | } | |
a1c3ed4c FB |
465 | return work_done; |
466 | } | |
467 | ||
468 | static int qeth_l2_poll(struct napi_struct *napi, int budget) | |
469 | { | |
470 | struct qeth_card *card = container_of(napi, struct qeth_card, napi); | |
471 | int work_done = 0; | |
472 | struct qeth_qdio_buffer *buffer; | |
473 | int done; | |
474 | int new_budget = budget; | |
475 | ||
476 | if (card->options.performance_stats) { | |
477 | card->perf_stats.inbound_cnt++; | |
478 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
479 | } | |
480 | ||
481 | while (1) { | |
482 | if (!card->rx.b_count) { | |
483 | card->rx.qdio_err = 0; | |
484 | card->rx.b_count = qdio_get_next_buffers( | |
485 | card->data.ccwdev, 0, &card->rx.b_index, | |
486 | &card->rx.qdio_err); | |
487 | if (card->rx.b_count <= 0) { | |
488 | card->rx.b_count = 0; | |
489 | break; | |
490 | } | |
491 | card->rx.b_element = | |
492 | &card->qdio.in_q->bufs[card->rx.b_index] | |
493 | .buffer->element[0]; | |
494 | card->rx.e_offset = 0; | |
495 | } | |
496 | ||
497 | while (card->rx.b_count) { | |
498 | buffer = &card->qdio.in_q->bufs[card->rx.b_index]; | |
499 | if (!(card->rx.qdio_err && | |
500 | qeth_check_qdio_errors(card, buffer->buffer, | |
501 | card->rx.qdio_err, "qinerr"))) | |
502 | work_done += qeth_l2_process_inbound_buffer( | |
503 | card, new_budget, &done); | |
504 | else | |
505 | done = 1; | |
506 | ||
507 | if (done) { | |
508 | if (card->options.performance_stats) | |
509 | card->perf_stats.bufs_rec++; | |
510 | qeth_put_buffer_pool_entry(card, | |
511 | buffer->pool_entry); | |
512 | qeth_queue_input_buffer(card, card->rx.b_index); | |
513 | card->rx.b_count--; | |
514 | if (card->rx.b_count) { | |
515 | card->rx.b_index = | |
516 | (card->rx.b_index + 1) % | |
517 | QDIO_MAX_BUFFERS_PER_Q; | |
518 | card->rx.b_element = | |
519 | &card->qdio.in_q | |
520 | ->bufs[card->rx.b_index] | |
521 | .buffer->element[0]; | |
522 | card->rx.e_offset = 0; | |
523 | } | |
524 | } | |
525 | ||
526 | if (work_done >= budget) | |
527 | goto out; | |
528 | else | |
529 | new_budget = budget - work_done; | |
530 | } | |
531 | } | |
532 | ||
533 | napi_complete(napi); | |
534 | if (qdio_start_irq(card->data.ccwdev, 0)) | |
535 | napi_schedule(&card->napi); | |
536 | out: | |
537 | if (card->options.performance_stats) | |
538 | card->perf_stats.inbound_time += qeth_get_micros() - | |
539 | card->perf_stats.inbound_start_time; | |
540 | return work_done; | |
4a71df50 FB |
541 | } |
542 | ||
543 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
544 | enum qeth_ipa_cmds ipacmd, | |
545 | int (*reply_cb) (struct qeth_card *, | |
546 | struct qeth_reply*, | |
547 | unsigned long)) | |
548 | { | |
549 | struct qeth_ipa_cmd *cmd; | |
550 | struct qeth_cmd_buffer *iob; | |
551 | ||
847a50fd | 552 | QETH_CARD_TEXT(card, 2, "L2sdmac"); |
4a71df50 FB |
553 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
554 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
555 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
556 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
557 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
558 | } | |
559 | ||
560 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
561 | struct qeth_reply *reply, | |
562 | unsigned long data) | |
563 | { | |
564 | struct qeth_ipa_cmd *cmd; | |
565 | ||
847a50fd | 566 | QETH_CARD_TEXT(card, 2, "L2Smaccb"); |
4a71df50 FB |
567 | cmd = (struct qeth_ipa_cmd *) data; |
568 | if (cmd->hdr.return_code) { | |
847a50fd | 569 | QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 | 570 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
0666eb06 UB |
571 | switch (cmd->hdr.return_code) { |
572 | case IPA_RC_L2_DUP_MAC: | |
573 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
574 | dev_warn(&card->gdev->dev, | |
d998ab0b | 575 | "MAC address %pM already exists\n", |
221c17fe | 576 | cmd->data.setdelmac.mac); |
0666eb06 UB |
577 | break; |
578 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
579 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
580 | dev_warn(&card->gdev->dev, | |
d998ab0b | 581 | "MAC address %pM is not authorized\n", |
221c17fe | 582 | cmd->data.setdelmac.mac); |
0666eb06 UB |
583 | break; |
584 | default: | |
585 | break; | |
586 | } | |
4a71df50 FB |
587 | cmd->hdr.return_code = -EIO; |
588 | } else { | |
589 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
590 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
591 | OSA_ADDR_LEN); | |
74eacdb9 | 592 | dev_info(&card->gdev->dev, |
d998ab0b HS |
593 | "MAC address %pM successfully registered on device %s\n", |
594 | card->dev->dev_addr, card->dev->name); | |
4a71df50 FB |
595 | } |
596 | return 0; | |
597 | } | |
598 | ||
599 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
600 | { | |
847a50fd | 601 | QETH_CARD_TEXT(card, 2, "L2Setmac"); |
4a71df50 FB |
602 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
603 | qeth_l2_send_setmac_cb); | |
604 | } | |
605 | ||
606 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
607 | struct qeth_reply *reply, | |
608 | unsigned long data) | |
609 | { | |
610 | struct qeth_ipa_cmd *cmd; | |
611 | ||
847a50fd | 612 | QETH_CARD_TEXT(card, 2, "L2Dmaccb"); |
4a71df50 FB |
613 | cmd = (struct qeth_ipa_cmd *) data; |
614 | if (cmd->hdr.return_code) { | |
847a50fd | 615 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
616 | cmd->hdr.return_code = -EIO; |
617 | return 0; | |
618 | } | |
619 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
620 | ||
621 | return 0; | |
622 | } | |
623 | ||
624 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
625 | { | |
847a50fd | 626 | QETH_CARD_TEXT(card, 2, "L2Delmac"); |
4a71df50 FB |
627 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
628 | return 0; | |
629 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
630 | qeth_l2_send_delmac_cb); | |
631 | } | |
632 | ||
633 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
634 | { | |
635 | int rc = 0; | |
636 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
637 | ||
d11ba0c4 PT |
638 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
639 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
640 | |
641 | rc = qeth_query_setadapterparms(card); | |
642 | if (rc) { | |
14cc21b6 FB |
643 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
644 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
645 | } |
646 | ||
5113fec0 UB |
647 | if (card->info.type == QETH_CARD_TYPE_IQD || |
648 | card->info.type == QETH_CARD_TYPE_OSM || | |
649 | card->info.type == QETH_CARD_TYPE_OSX || | |
650 | card->info.guestlan) { | |
4a71df50 FB |
651 | rc = qeth_setadpparms_change_macaddr(card); |
652 | if (rc) { | |
14cc21b6 FB |
653 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
654 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 655 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
656 | return rc; |
657 | } | |
d11ba0c4 | 658 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
659 | } else { |
660 | random_ether_addr(card->dev->dev_addr); | |
661 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
662 | } | |
663 | return 0; | |
664 | } | |
665 | ||
666 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
667 | { | |
668 | struct sockaddr *addr = p; | |
509e2562 | 669 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
670 | int rc = 0; |
671 | ||
847a50fd | 672 | QETH_CARD_TEXT(card, 3, "setmac"); |
4a71df50 FB |
673 | |
674 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
847a50fd | 675 | QETH_CARD_TEXT(card, 3, "setmcINV"); |
4a71df50 FB |
676 | return -EOPNOTSUPP; |
677 | } | |
678 | ||
5113fec0 UB |
679 | if (card->info.type == QETH_CARD_TYPE_OSN || |
680 | card->info.type == QETH_CARD_TYPE_OSM || | |
681 | card->info.type == QETH_CARD_TYPE_OSX) { | |
847a50fd | 682 | QETH_CARD_TEXT(card, 3, "setmcTYP"); |
4a71df50 FB |
683 | return -EOPNOTSUPP; |
684 | } | |
847a50fd | 685 | QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); |
8e98ac48 | 686 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 687 | QETH_CARD_TEXT(card, 3, "setmcREC"); |
8e98ac48 UB |
688 | return -ERESTARTSYS; |
689 | } | |
4a71df50 FB |
690 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
691 | if (!rc) | |
692 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
693 | return rc; | |
694 | } | |
695 | ||
696 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
697 | { | |
509e2562 | 698 | struct qeth_card *card = dev->ml_priv; |
ccffad25 | 699 | struct netdev_hw_addr *ha; |
4a71df50 FB |
700 | |
701 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
702 | return ; | |
703 | ||
847a50fd | 704 | QETH_CARD_TEXT(card, 3, "setmulti"); |
8e98ac48 UB |
705 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
706 | (card->state != CARD_STATE_UP)) | |
707 | return; | |
4a71df50 FB |
708 | qeth_l2_del_all_mc(card); |
709 | spin_lock_bh(&card->mclock); | |
22bedad3 JP |
710 | netdev_for_each_mc_addr(ha, dev) |
711 | qeth_l2_add_mc(card, ha->addr, 0); | |
7db2266a | 712 | |
32e7bfc4 | 713 | netdev_for_each_uc_addr(ha, dev) |
ccffad25 | 714 | qeth_l2_add_mc(card, ha->addr, 1); |
7db2266a | 715 | |
4a71df50 FB |
716 | spin_unlock_bh(&card->mclock); |
717 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
718 | return; | |
719 | qeth_setadp_promisc_mode(card); | |
720 | } | |
721 | ||
722 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
723 | { | |
724 | int rc; | |
725 | struct qeth_hdr *hdr = NULL; | |
726 | int elements = 0; | |
509e2562 | 727 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
728 | struct sk_buff *new_skb = skb; |
729 | int ipv = qeth_get_ip_version(skb); | |
ce73e10e | 730 | int cast_type = qeth_l2_get_cast_type(card, skb); |
4a71df50 FB |
731 | struct qeth_qdio_out_q *queue = card->qdio.out_qs |
732 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
733 | int tx_bytes = skb->len; | |
683d718a FB |
734 | int data_offset = -1; |
735 | int elements_needed = 0; | |
736 | int hd_len = 0; | |
4a71df50 | 737 | |
4a71df50 FB |
738 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
739 | card->stats.tx_carrier_errors++; | |
740 | goto tx_drop; | |
741 | } | |
742 | ||
743 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
744 | (skb->protocol == htons(ETH_P_IPV6))) | |
745 | goto tx_drop; | |
746 | ||
747 | if (card->options.performance_stats) { | |
748 | card->perf_stats.outbound_cnt++; | |
749 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
750 | } | |
751 | netif_stop_queue(dev); | |
752 | ||
4a71df50 FB |
753 | if (card->info.type == QETH_CARD_TYPE_OSN) |
754 | hdr = (struct qeth_hdr *)skb->data; | |
755 | else { | |
64ef8957 | 756 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
757 | new_skb = skb; |
758 | data_offset = ETH_HLEN; | |
759 | hd_len = ETH_HLEN; | |
760 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
761 | GFP_ATOMIC); | |
762 | if (!hdr) | |
763 | goto tx_drop; | |
764 | elements_needed++; | |
765 | skb_reset_mac_header(new_skb); | |
766 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
767 | hdr->hdr.l2.pkt_length = new_skb->len; | |
768 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
769 | skb_mac_header(new_skb), ETH_HLEN); | |
770 | } else { | |
771 | /* create a clone with writeable headroom */ | |
772 | new_skb = skb_realloc_headroom(skb, | |
773 | sizeof(struct qeth_hdr)); | |
774 | if (!new_skb) | |
775 | goto tx_drop; | |
776 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 777 | sizeof(struct qeth_hdr)); |
683d718a FB |
778 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
779 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
780 | } | |
4a71df50 FB |
781 | } |
782 | ||
64ef8957 | 783 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 784 | elements_needed); |
64ef8957 FB |
785 | if (!elements) { |
786 | if (data_offset >= 0) | |
787 | kmem_cache_free(qeth_core_header_cache, hdr); | |
788 | goto tx_drop; | |
f61a0d05 | 789 | } |
4a71df50 | 790 | |
51aa165c FB |
791 | if (card->info.type != QETH_CARD_TYPE_IQD) { |
792 | if (qeth_hdr_chk_and_bounce(new_skb, | |
793 | sizeof(struct qeth_hdr_layer2))) | |
794 | goto tx_drop; | |
4a71df50 | 795 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, |
64ef8957 | 796 | elements); |
51aa165c | 797 | } else |
4a71df50 | 798 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, |
64ef8957 | 799 | elements, data_offset, hd_len); |
4a71df50 FB |
800 | if (!rc) { |
801 | card->stats.tx_packets++; | |
802 | card->stats.tx_bytes += tx_bytes; | |
803 | if (new_skb != skb) | |
804 | dev_kfree_skb_any(skb); | |
ec634fe3 | 805 | rc = NETDEV_TX_OK; |
4a71df50 | 806 | } else { |
683d718a FB |
807 | if (data_offset >= 0) |
808 | kmem_cache_free(qeth_core_header_cache, hdr); | |
809 | ||
4a71df50 FB |
810 | if (rc == -EBUSY) { |
811 | if (new_skb != skb) | |
812 | dev_kfree_skb_any(new_skb); | |
813 | return NETDEV_TX_BUSY; | |
814 | } else | |
815 | goto tx_drop; | |
816 | } | |
817 | ||
818 | netif_wake_queue(dev); | |
819 | if (card->options.performance_stats) | |
820 | card->perf_stats.outbound_time += qeth_get_micros() - | |
821 | card->perf_stats.outbound_start_time; | |
822 | return rc; | |
823 | ||
824 | tx_drop: | |
825 | card->stats.tx_dropped++; | |
826 | card->stats.tx_errors++; | |
827 | if ((new_skb != skb) && new_skb) | |
828 | dev_kfree_skb_any(new_skb); | |
829 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 830 | netif_wake_queue(dev); |
4a71df50 FB |
831 | return NETDEV_TX_OK; |
832 | } | |
833 | ||
39423440 | 834 | static int __qeth_l2_open(struct net_device *dev) |
4a71df50 | 835 | { |
509e2562 | 836 | struct qeth_card *card = dev->ml_priv; |
a1c3ed4c | 837 | int rc = 0; |
4a71df50 | 838 | |
847a50fd | 839 | QETH_CARD_TEXT(card, 4, "qethopen"); |
39423440 UB |
840 | if (card->state == CARD_STATE_UP) |
841 | return rc; | |
4a71df50 FB |
842 | if (card->state != CARD_STATE_SOFTSETUP) |
843 | return -ENODEV; | |
844 | ||
845 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
846 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
847a50fd | 847 | QETH_CARD_TEXT(card, 4, "nomacadr"); |
4a71df50 FB |
848 | return -EPERM; |
849 | } | |
850 | card->data.state = CH_STATE_UP; | |
851 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
852 | netif_start_queue(dev); |
853 | ||
a1c3ed4c FB |
854 | if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { |
855 | napi_enable(&card->napi); | |
856 | napi_schedule(&card->napi); | |
857 | } else | |
858 | rc = -EIO; | |
859 | return rc; | |
4a71df50 FB |
860 | } |
861 | ||
39423440 UB |
862 | static int qeth_l2_open(struct net_device *dev) |
863 | { | |
864 | struct qeth_card *card = dev->ml_priv; | |
865 | ||
866 | QETH_CARD_TEXT(card, 5, "qethope_"); | |
867 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { | |
868 | QETH_CARD_TEXT(card, 3, "openREC"); | |
869 | return -ERESTARTSYS; | |
870 | } | |
871 | return __qeth_l2_open(dev); | |
872 | } | |
873 | ||
4a71df50 FB |
874 | static int qeth_l2_stop(struct net_device *dev) |
875 | { | |
509e2562 | 876 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 877 | |
847a50fd | 878 | QETH_CARD_TEXT(card, 4, "qethstop"); |
4a71df50 | 879 | netif_tx_disable(dev); |
a1c3ed4c | 880 | if (card->state == CARD_STATE_UP) { |
4a71df50 | 881 | card->state = CARD_STATE_SOFTSETUP; |
a1c3ed4c FB |
882 | napi_disable(&card->napi); |
883 | } | |
4a71df50 FB |
884 | return 0; |
885 | } | |
886 | ||
887 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
888 | { | |
889 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
890 | ||
891 | INIT_LIST_HEAD(&card->vid_list); | |
892 | INIT_LIST_HEAD(&card->mc_list); | |
893 | card->options.layer2 = 1; | |
a1c3ed4c | 894 | card->discipline.start_poll = qeth_qdio_start_poll; |
4a71df50 | 895 | card->discipline.input_handler = (qdio_handler_t *) |
a1c3ed4c | 896 | qeth_qdio_input_handler; |
4a71df50 FB |
897 | card->discipline.output_handler = (qdio_handler_t *) |
898 | qeth_qdio_output_handler; | |
899 | card->discipline.recover = qeth_l2_recover; | |
900 | return 0; | |
901 | } | |
902 | ||
903 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
904 | { | |
905 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
906 | ||
f2148565 | 907 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
908 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
909 | ||
910 | if (cgdev->state == CCWGROUP_ONLINE) { | |
911 | card->use_hard_stop = 1; | |
912 | qeth_l2_set_offline(cgdev); | |
913 | } | |
914 | ||
915 | if (card->dev) { | |
916 | unregister_netdev(card->dev); | |
917 | card->dev = NULL; | |
918 | } | |
4a71df50 FB |
919 | return; |
920 | } | |
921 | ||
0fc0b732 | 922 | static const struct ethtool_ops qeth_l2_ethtool_ops = { |
4a71df50 | 923 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
924 | .get_strings = qeth_core_get_strings, |
925 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 926 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 927 | .get_drvinfo = qeth_core_get_drvinfo, |
3f9975aa | 928 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
929 | }; |
930 | ||
0fc0b732 | 931 | static const struct ethtool_ops qeth_l2_osn_ops = { |
4a71df50 FB |
932 | .get_strings = qeth_core_get_strings, |
933 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 934 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 FB |
935 | .get_drvinfo = qeth_core_get_drvinfo, |
936 | }; | |
937 | ||
3d58cefd | 938 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
939 | .ndo_open = qeth_l2_open, |
940 | .ndo_stop = qeth_l2_stop, | |
941 | .ndo_get_stats = qeth_get_stats, | |
942 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
943 | .ndo_validate_addr = eth_validate_addr, | |
944 | .ndo_set_multicast_list = qeth_l2_set_multicast_list, | |
945 | .ndo_do_ioctl = qeth_l2_do_ioctl, | |
946 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
947 | .ndo_change_mtu = qeth_change_mtu, | |
948 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
949 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
950 | .ndo_tx_timeout = qeth_tx_timeout, | |
951 | }; | |
952 | ||
4a71df50 FB |
953 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
954 | { | |
955 | switch (card->info.type) { | |
4a71df50 FB |
956 | case QETH_CARD_TYPE_IQD: |
957 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
958 | break; | |
959 | case QETH_CARD_TYPE_OSN: | |
960 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
961 | card->dev->flags |= IFF_NOARP; | |
962 | break; | |
963 | default: | |
964 | card->dev = alloc_etherdev(0); | |
965 | } | |
966 | ||
967 | if (!card->dev) | |
968 | return -ENODEV; | |
969 | ||
509e2562 | 970 | card->dev->ml_priv = card; |
4a71df50 | 971 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 972 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 973 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
974 | if (card->info.type != QETH_CARD_TYPE_OSN) |
975 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
976 | else | |
977 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
978 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
979 | card->info.broadcast_capable = 1; | |
980 | qeth_l2_request_initial_mac(card); | |
981 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
a1c3ed4c | 982 | netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); |
4a71df50 FB |
983 | return register_netdev(card->dev); |
984 | } | |
985 | ||
986 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
987 | { | |
988 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
989 | int rc = 0; | |
990 | enum qeth_card_states recover_flag; | |
991 | ||
992 | BUG_ON(!card); | |
9dc48ccc | 993 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 994 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
995 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
996 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 997 | |
4a71df50 | 998 | recover_flag = card->state; |
4a71df50 FB |
999 | rc = qeth_core_hardsetup_card(card); |
1000 | if (rc) { | |
d11ba0c4 | 1001 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
aa909224 | 1002 | rc = -ENODEV; |
4a71df50 FB |
1003 | goto out_remove; |
1004 | } | |
1005 | ||
aa909224 UB |
1006 | if (!card->dev && qeth_l2_setup_netdev(card)) { |
1007 | rc = -ENODEV; | |
4a71df50 | 1008 | goto out_remove; |
aa909224 | 1009 | } |
4a71df50 FB |
1010 | |
1011 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
1012 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
1013 | ||
1014 | card->state = CARD_STATE_HARDSETUP; | |
a1c3ed4c | 1015 | memset(&card->rx, 0, sizeof(struct qeth_rx)); |
4a71df50 FB |
1016 | qeth_print_status_message(card); |
1017 | ||
1018 | /* softsetup */ | |
d11ba0c4 | 1019 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
1020 | |
1021 | rc = qeth_send_startlan(card); | |
1022 | if (rc) { | |
d11ba0c4 | 1023 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 1024 | if (rc == 0xe080) { |
74eacdb9 FB |
1025 | dev_warn(&card->gdev->dev, |
1026 | "The LAN is offline\n"); | |
4a71df50 | 1027 | card->lan_online = 0; |
2b6203bb | 1028 | goto contin; |
4a71df50 | 1029 | } |
aa909224 | 1030 | rc = -ENODEV; |
f2148565 | 1031 | goto out_remove; |
4a71df50 FB |
1032 | } else |
1033 | card->lan_online = 1; | |
1034 | ||
2b6203bb | 1035 | contin: |
5113fec0 UB |
1036 | if ((card->info.type == QETH_CARD_TYPE_OSD) || |
1037 | (card->info.type == QETH_CARD_TYPE_OSX)) | |
d64ecc22 EL |
1038 | /* configure isolation level */ |
1039 | qeth_set_access_ctrl_online(card); | |
5113fec0 UB |
1040 | |
1041 | if (card->info.type != QETH_CARD_TYPE_OSN && | |
1042 | card->info.type != QETH_CARD_TYPE_OSM) | |
4a71df50 | 1043 | qeth_l2_process_vlans(card, 0); |
4a71df50 FB |
1044 | |
1045 | netif_tx_disable(card->dev); | |
1046 | ||
1047 | rc = qeth_init_qdio_queues(card); | |
1048 | if (rc) { | |
d11ba0c4 | 1049 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 1050 | rc = -ENODEV; |
4a71df50 FB |
1051 | goto out_remove; |
1052 | } | |
1053 | card->state = CARD_STATE_SOFTSETUP; | |
2b6203bb UB |
1054 | if (card->lan_online) |
1055 | netif_carrier_on(card->dev); | |
1056 | else | |
1057 | netif_carrier_off(card->dev); | |
4a71df50 FB |
1058 | |
1059 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1060 | if (recover_flag == CARD_STATE_RECOVER) { | |
1061 | if (recovery_mode && | |
1062 | card->info.type != QETH_CARD_TYPE_OSN) { | |
39423440 | 1063 | __qeth_l2_open(card->dev); |
4a71df50 FB |
1064 | } else { |
1065 | rtnl_lock(); | |
1066 | dev_open(card->dev); | |
1067 | rtnl_unlock(); | |
1068 | } | |
1069 | /* this also sets saved unicast addresses */ | |
1070 | qeth_l2_set_multicast_list(card->dev); | |
1071 | } | |
1072 | /* let user_space know that device is online */ | |
1073 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1074 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1075 | mutex_unlock(&card->discipline_mutex); |
4a71df50 | 1076 | return 0; |
aa909224 | 1077 | |
4a71df50 FB |
1078 | out_remove: |
1079 | card->use_hard_stop = 1; | |
1080 | qeth_l2_stop_card(card, 0); | |
1081 | ccw_device_set_offline(CARD_DDEV(card)); | |
1082 | ccw_device_set_offline(CARD_WDEV(card)); | |
1083 | ccw_device_set_offline(CARD_RDEV(card)); | |
1084 | if (recover_flag == CARD_STATE_RECOVER) | |
1085 | card->state = CARD_STATE_RECOVER; | |
1086 | else | |
1087 | card->state = CARD_STATE_DOWN; | |
c4949f07 | 1088 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1089 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 1090 | return rc; |
4a71df50 FB |
1091 | } |
1092 | ||
1093 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1094 | { | |
1095 | return __qeth_l2_set_online(gdev, 0); | |
1096 | } | |
1097 | ||
1098 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1099 | int recovery_mode) | |
1100 | { | |
1101 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1102 | int rc = 0, rc2 = 0, rc3 = 0; | |
1103 | enum qeth_card_states recover_flag; | |
1104 | ||
9dc48ccc | 1105 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 1106 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
1107 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1108 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1109 | |
1110 | if (card->dev && netif_carrier_ok(card->dev)) | |
1111 | netif_carrier_off(card->dev); | |
1112 | recover_flag = card->state; | |
0f5623c9 | 1113 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1114 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1115 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1116 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1117 | if (!rc) | |
1118 | rc = (rc2) ? rc2 : rc3; | |
1119 | if (rc) | |
d11ba0c4 | 1120 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1121 | if (recover_flag == CARD_STATE_UP) |
1122 | card->state = CARD_STATE_RECOVER; | |
1123 | /* let user_space know that device is offline */ | |
1124 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1125 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1126 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
1127 | return 0; |
1128 | } | |
1129 | ||
1130 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1131 | { | |
1132 | return __qeth_l2_set_offline(cgdev, 0); | |
1133 | } | |
1134 | ||
1135 | static int qeth_l2_recover(void *ptr) | |
1136 | { | |
1137 | struct qeth_card *card; | |
1138 | int rc = 0; | |
1139 | ||
1140 | card = (struct qeth_card *) ptr; | |
847a50fd | 1141 | QETH_CARD_TEXT(card, 2, "recover1"); |
4a71df50 FB |
1142 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1143 | return 0; | |
847a50fd | 1144 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
1145 | dev_warn(&card->gdev->dev, |
1146 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1147 | card->use_hard_stop = 1; |
1148 | __qeth_l2_set_offline(card->gdev, 1); | |
1149 | rc = __qeth_l2_set_online(card->gdev, 1); | |
4a71df50 | 1150 | if (!rc) |
74eacdb9 FB |
1151 | dev_info(&card->gdev->dev, |
1152 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1153 | else { |
869da90b UB |
1154 | rtnl_lock(); |
1155 | dev_close(card->dev); | |
1156 | rtnl_unlock(); | |
74eacdb9 FB |
1157 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1158 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1159 | } |
a1c3ed4c FB |
1160 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
1161 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
1162 | return 0; |
1163 | } | |
1164 | ||
1165 | static int __init qeth_l2_init(void) | |
1166 | { | |
74eacdb9 | 1167 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1168 | return 0; |
1169 | } | |
1170 | ||
1171 | static void __exit qeth_l2_exit(void) | |
1172 | { | |
74eacdb9 | 1173 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1174 | } |
1175 | ||
1176 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1177 | { | |
1178 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1179 | qeth_qdio_clear_card(card, 0); | |
1180 | qeth_clear_qdio_buffers(card); | |
1181 | } | |
1182 | ||
bbcfcdc8 FB |
1183 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
1184 | { | |
1185 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1186 | ||
1187 | if (card->dev) | |
1188 | netif_device_detach(card->dev); | |
1189 | qeth_set_allowed_threads(card, 0, 1); | |
1190 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
1191 | if (gdev->state == CCWGROUP_OFFLINE) | |
1192 | return 0; | |
1193 | if (card->state == CARD_STATE_UP) { | |
1194 | card->use_hard_stop = 1; | |
1195 | __qeth_l2_set_offline(card->gdev, 1); | |
1196 | } else | |
1197 | __qeth_l2_set_offline(card->gdev, 0); | |
1198 | return 0; | |
1199 | } | |
1200 | ||
1201 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
1202 | { | |
1203 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1204 | int rc = 0; | |
1205 | ||
1206 | if (gdev->state == CCWGROUP_OFFLINE) | |
1207 | goto out; | |
1208 | ||
1209 | if (card->state == CARD_STATE_RECOVER) { | |
1210 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1211 | if (rc) { | |
869da90b UB |
1212 | rtnl_lock(); |
1213 | dev_close(card->dev); | |
1214 | rtnl_unlock(); | |
bbcfcdc8 FB |
1215 | } |
1216 | } else | |
1217 | rc = __qeth_l2_set_online(card->gdev, 0); | |
1218 | out: | |
1219 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1220 | if (card->dev) | |
1221 | netif_device_attach(card->dev); | |
1222 | if (rc) | |
1223 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1224 | "failed to recover an error on the device\n"); | |
1225 | return rc; | |
1226 | } | |
1227 | ||
4a71df50 FB |
1228 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { |
1229 | .probe = qeth_l2_probe_device, | |
1230 | .remove = qeth_l2_remove_device, | |
1231 | .set_online = qeth_l2_set_online, | |
1232 | .set_offline = qeth_l2_set_offline, | |
1233 | .shutdown = qeth_l2_shutdown, | |
bbcfcdc8 FB |
1234 | .freeze = qeth_l2_pm_suspend, |
1235 | .thaw = qeth_l2_pm_resume, | |
1236 | .restore = qeth_l2_pm_resume, | |
4a71df50 FB |
1237 | }; |
1238 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1239 | ||
1240 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1241 | struct qeth_cmd_buffer *iob) | |
1242 | { | |
1243 | unsigned long flags; | |
1244 | int rc = 0; | |
1245 | ||
847a50fd | 1246 | QETH_CARD_TEXT(card, 5, "osndctrd"); |
4a71df50 FB |
1247 | |
1248 | wait_event(card->wait_q, | |
1249 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1250 | qeth_prepare_control_data(card, len, iob); | |
847a50fd | 1251 | QETH_CARD_TEXT(card, 6, "osnoirqp"); |
4a71df50 FB |
1252 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1253 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1254 | (addr_t) iob, 0, 0); | |
1255 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1256 | if (rc) { | |
14cc21b6 | 1257 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1258 | "ccw_device_start rc = %i\n", rc); |
847a50fd | 1259 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
1260 | qeth_release_buffer(iob->channel, iob); |
1261 | atomic_set(&card->write.irq_pending, 0); | |
1262 | wake_up(&card->wait_q); | |
1263 | } | |
1264 | return rc; | |
1265 | } | |
1266 | ||
1267 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1268 | struct qeth_cmd_buffer *iob, int data_len) | |
1269 | { | |
1270 | u16 s1, s2; | |
1271 | ||
847a50fd | 1272 | QETH_CARD_TEXT(card, 4, "osndipa"); |
4a71df50 FB |
1273 | |
1274 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1275 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1276 | s2 = (u16)data_len; | |
1277 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1278 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1279 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1280 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1281 | return qeth_osn_send_control_data(card, s1, iob); | |
1282 | } | |
1283 | ||
1284 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1285 | { | |
1286 | struct qeth_cmd_buffer *iob; | |
1287 | struct qeth_card *card; | |
1288 | int rc; | |
1289 | ||
4a71df50 FB |
1290 | if (!dev) |
1291 | return -ENODEV; | |
509e2562 | 1292 | card = dev->ml_priv; |
4a71df50 FB |
1293 | if (!card) |
1294 | return -ENODEV; | |
847a50fd | 1295 | QETH_CARD_TEXT(card, 2, "osnsdmc"); |
4a71df50 FB |
1296 | if ((card->state != CARD_STATE_UP) && |
1297 | (card->state != CARD_STATE_SOFTSETUP)) | |
1298 | return -ENODEV; | |
1299 | iob = qeth_wait_for_buffer(&card->write); | |
1300 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1301 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1302 | return rc; | |
1303 | } | |
1304 | EXPORT_SYMBOL(qeth_osn_assist); | |
1305 | ||
1306 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1307 | int (*assist_cb)(struct net_device *, void *), | |
1308 | int (*data_cb)(struct sk_buff *)) | |
1309 | { | |
1310 | struct qeth_card *card; | |
1311 | ||
4a71df50 FB |
1312 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1313 | if (*dev == NULL) | |
1314 | return -ENODEV; | |
509e2562 | 1315 | card = (*dev)->ml_priv; |
4a71df50 FB |
1316 | if (!card) |
1317 | return -ENODEV; | |
847a50fd | 1318 | QETH_CARD_TEXT(card, 2, "osnreg"); |
4a71df50 FB |
1319 | if ((assist_cb == NULL) || (data_cb == NULL)) |
1320 | return -EINVAL; | |
1321 | card->osn_info.assist_cb = assist_cb; | |
1322 | card->osn_info.data_cb = data_cb; | |
1323 | return 0; | |
1324 | } | |
1325 | EXPORT_SYMBOL(qeth_osn_register); | |
1326 | ||
1327 | void qeth_osn_deregister(struct net_device *dev) | |
1328 | { | |
1329 | struct qeth_card *card; | |
1330 | ||
4a71df50 FB |
1331 | if (!dev) |
1332 | return; | |
509e2562 | 1333 | card = dev->ml_priv; |
4a71df50 FB |
1334 | if (!card) |
1335 | return; | |
847a50fd | 1336 | QETH_CARD_TEXT(card, 2, "osndereg"); |
4a71df50 FB |
1337 | card->osn_info.assist_cb = NULL; |
1338 | card->osn_info.data_cb = NULL; | |
1339 | return; | |
1340 | } | |
1341 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1342 | ||
1343 | module_init(qeth_l2_init); | |
1344 | module_exit(qeth_l2_exit); | |
1345 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1346 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1347 | MODULE_LICENSE("GPL"); |