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Commit | Line | Data |
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4a71df50 | 1 | /* |
bbcfcdc8 | 2 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
3 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
4 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
5 | * Thomas Spatzier <tspat@de.ibm.com>, | |
6 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
7 | */ | |
8 | ||
74eacdb9 FB |
9 | #define KMSG_COMPONENT "qeth" |
10 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
11 | ||
4a71df50 FB |
12 | #include <linux/module.h> |
13 | #include <linux/moduleparam.h> | |
14 | #include <linux/string.h> | |
15 | #include <linux/errno.h> | |
16 | #include <linux/kernel.h> | |
5a0e3ad6 | 17 | #include <linux/slab.h> |
4a71df50 FB |
18 | #include <linux/etherdevice.h> |
19 | #include <linux/mii.h> | |
20 | #include <linux/ip.h> | |
ccffad25 | 21 | #include <linux/list.h> |
4a71df50 | 22 | |
4a71df50 | 23 | #include "qeth_core.h" |
4a71df50 | 24 | |
4a71df50 FB |
25 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
26 | static int qeth_l2_stop(struct net_device *); | |
27 | static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); | |
28 | static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, | |
29 | enum qeth_ipa_cmds, | |
30 | int (*reply_cb) (struct qeth_card *, | |
31 | struct qeth_reply*, | |
32 | unsigned long)); | |
33 | static void qeth_l2_set_multicast_list(struct net_device *); | |
34 | static int qeth_l2_recover(void *); | |
35 | ||
36 | static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
37 | { | |
509e2562 | 38 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
39 | struct mii_ioctl_data *mii_data; |
40 | int rc = 0; | |
41 | ||
42 | if (!card) | |
43 | return -ENODEV; | |
44 | ||
45 | if ((card->state != CARD_STATE_UP) && | |
46 | (card->state != CARD_STATE_SOFTSETUP)) | |
47 | return -ENODEV; | |
48 | ||
49 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
50 | return -EPERM; | |
51 | ||
52 | switch (cmd) { | |
53 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
54 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
55 | break; | |
56 | case SIOC_QETH_GET_CARD_TYPE: | |
5113fec0 UB |
57 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
58 | card->info.type == QETH_CARD_TYPE_OSM || | |
59 | card->info.type == QETH_CARD_TYPE_OSX) && | |
4a71df50 FB |
60 | !card->info.guestlan) |
61 | return 1; | |
62 | return 0; | |
63 | break; | |
64 | case SIOCGMIIPHY: | |
65 | mii_data = if_mii(rq); | |
66 | mii_data->phy_id = 0; | |
67 | break; | |
68 | case SIOCGMIIREG: | |
69 | mii_data = if_mii(rq); | |
70 | if (mii_data->phy_id != 0) | |
71 | rc = -EINVAL; | |
72 | else | |
73 | mii_data->val_out = qeth_mdio_read(dev, | |
74 | mii_data->phy_id, mii_data->reg_num); | |
75 | break; | |
c3ab96f3 FB |
76 | case SIOC_QETH_QUERY_OAT: |
77 | rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); | |
78 | break; | |
4a71df50 FB |
79 | default: |
80 | rc = -EOPNOTSUPP; | |
81 | } | |
82 | if (rc) | |
847a50fd | 83 | QETH_CARD_TEXT_(card, 2, "ioce%d", rc); |
4a71df50 FB |
84 | return rc; |
85 | } | |
86 | ||
87 | static int qeth_l2_verify_dev(struct net_device *dev) | |
88 | { | |
89 | struct qeth_card *card; | |
90 | unsigned long flags; | |
91 | int rc = 0; | |
92 | ||
93 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
94 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
95 | if (card->dev == dev) { | |
96 | rc = QETH_REAL_CARD; | |
97 | break; | |
98 | } | |
99 | } | |
100 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
101 | ||
102 | return rc; | |
103 | } | |
104 | ||
105 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) | |
106 | { | |
107 | struct qeth_card *card; | |
108 | struct net_device *ndev; | |
f06f6f32 | 109 | __u16 temp_dev_no; |
4a71df50 | 110 | unsigned long flags; |
f06f6f32 | 111 | struct ccw_dev_id read_devid; |
4a71df50 FB |
112 | |
113 | ndev = NULL; | |
114 | memcpy(&temp_dev_no, read_dev_no, 2); | |
115 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
116 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
117 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
118 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
119 | ndev = card->dev; |
120 | break; | |
121 | } | |
122 | } | |
123 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
124 | return ndev; | |
125 | } | |
126 | ||
127 | static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, | |
128 | struct qeth_reply *reply, | |
129 | unsigned long data) | |
130 | { | |
131 | struct qeth_ipa_cmd *cmd; | |
132 | __u8 *mac; | |
133 | ||
847a50fd | 134 | QETH_CARD_TEXT(card, 2, "L2Sgmacb"); |
4a71df50 FB |
135 | cmd = (struct qeth_ipa_cmd *) data; |
136 | mac = &cmd->data.setdelmac.mac[0]; | |
137 | /* MAC already registered, needed in couple/uncouple case */ | |
0666eb06 | 138 | if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { |
7c510e4b JB |
139 | QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
140 | mac, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
141 | cmd->hdr.return_code = 0; |
142 | } | |
143 | if (cmd->hdr.return_code) | |
7c510e4b JB |
144 | QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
145 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
146 | return 0; |
147 | } | |
148 | ||
149 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
150 | { | |
847a50fd | 151 | QETH_CARD_TEXT(card, 2, "L2Sgmac"); |
4a71df50 FB |
152 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
153 | qeth_l2_send_setgroupmac_cb); | |
154 | } | |
155 | ||
156 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
157 | struct qeth_reply *reply, | |
158 | unsigned long data) | |
159 | { | |
160 | struct qeth_ipa_cmd *cmd; | |
161 | __u8 *mac; | |
162 | ||
847a50fd | 163 | QETH_CARD_TEXT(card, 2, "L2Dgmacb"); |
4a71df50 FB |
164 | cmd = (struct qeth_ipa_cmd *) data; |
165 | mac = &cmd->data.setdelmac.mac[0]; | |
166 | if (cmd->hdr.return_code) | |
7c510e4b JB |
167 | QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
168 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
169 | return 0; |
170 | } | |
171 | ||
172 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
173 | { | |
847a50fd | 174 | QETH_CARD_TEXT(card, 2, "L2Dgmac"); |
4a71df50 FB |
175 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
176 | qeth_l2_send_delgroupmac_cb); | |
177 | } | |
178 | ||
7db2266a | 179 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
4a71df50 FB |
180 | { |
181 | struct qeth_mc_mac *mc; | |
7db2266a | 182 | int rc; |
4a71df50 FB |
183 | |
184 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
185 | ||
14cc21b6 | 186 | if (!mc) |
4a71df50 | 187 | return; |
4a71df50 FB |
188 | |
189 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
190 | mc->mc_addrlen = OSA_ADDR_LEN; | |
7db2266a FB |
191 | mc->is_vmac = vmac; |
192 | ||
193 | if (vmac) { | |
194 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, | |
195 | NULL); | |
196 | } else { | |
197 | rc = qeth_l2_send_setgroupmac(card, mac); | |
198 | } | |
4a71df50 | 199 | |
7db2266a | 200 | if (!rc) |
4a71df50 FB |
201 | list_add_tail(&mc->list, &card->mc_list); |
202 | else | |
203 | kfree(mc); | |
204 | } | |
205 | ||
70919e23 | 206 | static void qeth_l2_del_all_mc(struct qeth_card *card, int del) |
4a71df50 FB |
207 | { |
208 | struct qeth_mc_mac *mc, *tmp; | |
209 | ||
210 | spin_lock_bh(&card->mclock); | |
211 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
70919e23 UB |
212 | if (del) { |
213 | if (mc->is_vmac) | |
214 | qeth_l2_send_setdelmac(card, mc->mc_addr, | |
7db2266a | 215 | IPA_CMD_DELVMAC, NULL); |
70919e23 UB |
216 | else |
217 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
218 | } | |
4a71df50 FB |
219 | list_del(&mc->list); |
220 | kfree(mc); | |
221 | } | |
222 | spin_unlock_bh(&card->mclock); | |
223 | } | |
224 | ||
ce73e10e KDW |
225 | static inline int qeth_l2_get_cast_type(struct qeth_card *card, |
226 | struct sk_buff *skb) | |
4a71df50 | 227 | { |
ce73e10e KDW |
228 | if (card->info.type == QETH_CARD_TYPE_OSN) |
229 | return RTN_UNSPEC; | |
230 | if (is_broadcast_ether_addr(skb->data)) | |
231 | return RTN_BROADCAST; | |
232 | if (is_multicast_ether_addr(skb->data)) | |
233 | return RTN_MULTICAST; | |
234 | return RTN_UNSPEC; | |
4a71df50 FB |
235 | } |
236 | ||
237 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
238 | struct sk_buff *skb, int ipv, int cast_type) | |
239 | { | |
683d718a | 240 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
241 | |
242 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
243 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
244 | ||
245 | /* set byte byte 3 to casting flags */ | |
246 | if (cast_type == RTN_MULTICAST) | |
247 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
248 | else if (cast_type == RTN_BROADCAST) | |
249 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
250 | else | |
ce73e10e | 251 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
4a71df50 FB |
252 | |
253 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
254 | /* VSWITCH relies on the VLAN | |
255 | * information to be present in | |
256 | * the QDIO header */ | |
257 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
258 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
259 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
260 | } | |
261 | } | |
262 | ||
263 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
264 | struct qeth_reply *reply, unsigned long data) | |
265 | { | |
266 | struct qeth_ipa_cmd *cmd; | |
267 | ||
847a50fd | 268 | QETH_CARD_TEXT(card, 2, "L2sdvcb"); |
4a71df50 FB |
269 | cmd = (struct qeth_ipa_cmd *) data; |
270 | if (cmd->hdr.return_code) { | |
14cc21b6 | 271 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
272 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
273 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
847a50fd CO |
274 | QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); |
275 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
276 | } |
277 | return 0; | |
278 | } | |
279 | ||
280 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
281 | enum qeth_ipa_cmds ipacmd) | |
282 | { | |
283 | struct qeth_ipa_cmd *cmd; | |
284 | struct qeth_cmd_buffer *iob; | |
285 | ||
847a50fd | 286 | QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
287 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
288 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
289 | cmd->data.setdelvlan.vlan_id = i; | |
290 | return qeth_send_ipa_cmd(card, iob, | |
291 | qeth_l2_send_setdelvlan_cb, NULL); | |
292 | } | |
293 | ||
70919e23 | 294 | static void qeth_l2_process_vlans(struct qeth_card *card) |
4a71df50 FB |
295 | { |
296 | struct qeth_vlan_vid *id; | |
847a50fd | 297 | QETH_CARD_TEXT(card, 3, "L2prcvln"); |
4a71df50 FB |
298 | spin_lock_bh(&card->vlanlock); |
299 | list_for_each_entry(id, &card->vid_list, list) { | |
70919e23 | 300 | qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); |
4a71df50 FB |
301 | } |
302 | spin_unlock_bh(&card->vlanlock); | |
303 | } | |
304 | ||
8e586137 | 305 | static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
4a71df50 | 306 | { |
509e2562 | 307 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
308 | struct qeth_vlan_vid *id; |
309 | ||
847a50fd | 310 | QETH_CARD_TEXT_(card, 4, "aid:%d", vid); |
10651db7 | 311 | if (!vid) |
8e586137 | 312 | return 0; |
5113fec0 | 313 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 314 | QETH_CARD_TEXT(card, 3, "aidOSM"); |
8e586137 | 315 | return 0; |
5113fec0 | 316 | } |
8e98ac48 | 317 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 318 | QETH_CARD_TEXT(card, 3, "aidREC"); |
8e586137 | 319 | return 0; |
8e98ac48 | 320 | } |
4a71df50 FB |
321 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
322 | if (id) { | |
323 | id->vid = vid; | |
324 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
325 | spin_lock_bh(&card->vlanlock); | |
326 | list_add_tail(&id->list, &card->vid_list); | |
327 | spin_unlock_bh(&card->vlanlock); | |
8e586137 JP |
328 | } else { |
329 | return -ENOMEM; | |
4a71df50 | 330 | } |
8e586137 | 331 | return 0; |
4a71df50 FB |
332 | } |
333 | ||
8e586137 | 334 | static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
4a71df50 FB |
335 | { |
336 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 337 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 338 | |
847a50fd | 339 | QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
5113fec0 | 340 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 341 | QETH_CARD_TEXT(card, 3, "kidOSM"); |
8e586137 | 342 | return 0; |
5113fec0 | 343 | } |
8e98ac48 | 344 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 345 | QETH_CARD_TEXT(card, 3, "kidREC"); |
8e586137 | 346 | return 0; |
8e98ac48 | 347 | } |
4a71df50 FB |
348 | spin_lock_bh(&card->vlanlock); |
349 | list_for_each_entry(id, &card->vid_list, list) { | |
350 | if (id->vid == vid) { | |
351 | list_del(&id->list); | |
352 | tmpid = id; | |
353 | break; | |
354 | } | |
355 | } | |
356 | spin_unlock_bh(&card->vlanlock); | |
357 | if (tmpid) { | |
358 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
359 | kfree(tmpid); | |
360 | } | |
361 | qeth_l2_set_multicast_list(card->dev); | |
8e586137 | 362 | return 0; |
4a71df50 FB |
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 | } | |
70919e23 | 384 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
4a71df50 FB |
385 | card->state = CARD_STATE_SOFTSETUP; |
386 | } | |
387 | if (card->state == CARD_STATE_SOFTSETUP) { | |
70919e23 | 388 | qeth_l2_del_all_mc(card, 0); |
4a71df50 FB |
389 | qeth_clear_ipacmd_list(card); |
390 | card->state = CARD_STATE_HARDSETUP; | |
391 | } | |
392 | if (card->state == CARD_STATE_HARDSETUP) { | |
393 | qeth_qdio_clear_card(card, 0); | |
394 | qeth_clear_qdio_buffers(card); | |
395 | qeth_clear_working_pool_list(card); | |
396 | card->state = CARD_STATE_DOWN; | |
397 | } | |
398 | if (card->state == CARD_STATE_DOWN) { | |
399 | qeth_clear_cmd_buffers(&card->read); | |
400 | qeth_clear_cmd_buffers(&card->write); | |
401 | } | |
4a71df50 FB |
402 | return rc; |
403 | } | |
404 | ||
a1c3ed4c FB |
405 | static int qeth_l2_process_inbound_buffer(struct qeth_card *card, |
406 | int budget, int *done) | |
4a71df50 | 407 | { |
a1c3ed4c | 408 | int work_done = 0; |
4a71df50 FB |
409 | struct sk_buff *skb; |
410 | struct qeth_hdr *hdr; | |
4a71df50 FB |
411 | unsigned int len; |
412 | ||
a1c3ed4c FB |
413 | *done = 0; |
414 | BUG_ON(!budget); | |
415 | while (budget) { | |
416 | skb = qeth_core_get_next_skb(card, | |
b3332930 | 417 | &card->qdio.in_q->bufs[card->rx.b_index], |
a1c3ed4c FB |
418 | &card->rx.b_element, &card->rx.e_offset, &hdr); |
419 | if (!skb) { | |
420 | *done = 1; | |
421 | break; | |
4a71df50 | 422 | } |
a1c3ed4c | 423 | skb->dev = card->dev; |
4a71df50 FB |
424 | switch (hdr->hdr.l2.id) { |
425 | case QETH_HEADER_TYPE_LAYER2: | |
426 | skb->pkt_type = PACKET_HOST; | |
427 | skb->protocol = eth_type_trans(skb, skb->dev); | |
c5e631a8 | 428 | skb->ip_summed = CHECKSUM_NONE; |
12883725 UB |
429 | if (skb->protocol == htons(ETH_P_802_2)) |
430 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 | 431 | len = skb->len; |
a1c3ed4c | 432 | netif_receive_skb(skb); |
4a71df50 FB |
433 | break; |
434 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
435 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
436 | skb_push(skb, sizeof(struct qeth_hdr)); | |
437 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 438 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
439 | len = skb->len; |
440 | card->osn_info.data_cb(skb); | |
441 | break; | |
442 | } | |
443 | /* else unknown */ | |
4a71df50 FB |
444 | default: |
445 | dev_kfree_skb_any(skb); | |
847a50fd | 446 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
d11ba0c4 | 447 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
448 | continue; |
449 | } | |
a1c3ed4c FB |
450 | work_done++; |
451 | budget--; | |
4a71df50 FB |
452 | card->stats.rx_packets++; |
453 | card->stats.rx_bytes += len; | |
454 | } | |
a1c3ed4c FB |
455 | return work_done; |
456 | } | |
457 | ||
458 | static int qeth_l2_poll(struct napi_struct *napi, int budget) | |
459 | { | |
460 | struct qeth_card *card = container_of(napi, struct qeth_card, napi); | |
461 | int work_done = 0; | |
462 | struct qeth_qdio_buffer *buffer; | |
463 | int done; | |
464 | int new_budget = budget; | |
465 | ||
466 | if (card->options.performance_stats) { | |
467 | card->perf_stats.inbound_cnt++; | |
468 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
469 | } | |
470 | ||
471 | while (1) { | |
472 | if (!card->rx.b_count) { | |
473 | card->rx.qdio_err = 0; | |
474 | card->rx.b_count = qdio_get_next_buffers( | |
475 | card->data.ccwdev, 0, &card->rx.b_index, | |
476 | &card->rx.qdio_err); | |
477 | if (card->rx.b_count <= 0) { | |
478 | card->rx.b_count = 0; | |
479 | break; | |
480 | } | |
481 | card->rx.b_element = | |
482 | &card->qdio.in_q->bufs[card->rx.b_index] | |
483 | .buffer->element[0]; | |
484 | card->rx.e_offset = 0; | |
485 | } | |
486 | ||
487 | while (card->rx.b_count) { | |
488 | buffer = &card->qdio.in_q->bufs[card->rx.b_index]; | |
489 | if (!(card->rx.qdio_err && | |
490 | qeth_check_qdio_errors(card, buffer->buffer, | |
491 | card->rx.qdio_err, "qinerr"))) | |
492 | work_done += qeth_l2_process_inbound_buffer( | |
493 | card, new_budget, &done); | |
494 | else | |
495 | done = 1; | |
496 | ||
497 | if (done) { | |
498 | if (card->options.performance_stats) | |
499 | card->perf_stats.bufs_rec++; | |
500 | qeth_put_buffer_pool_entry(card, | |
501 | buffer->pool_entry); | |
502 | qeth_queue_input_buffer(card, card->rx.b_index); | |
503 | card->rx.b_count--; | |
504 | if (card->rx.b_count) { | |
505 | card->rx.b_index = | |
506 | (card->rx.b_index + 1) % | |
507 | QDIO_MAX_BUFFERS_PER_Q; | |
508 | card->rx.b_element = | |
509 | &card->qdio.in_q | |
510 | ->bufs[card->rx.b_index] | |
511 | .buffer->element[0]; | |
512 | card->rx.e_offset = 0; | |
513 | } | |
514 | } | |
515 | ||
516 | if (work_done >= budget) | |
517 | goto out; | |
518 | else | |
519 | new_budget = budget - work_done; | |
520 | } | |
521 | } | |
522 | ||
523 | napi_complete(napi); | |
524 | if (qdio_start_irq(card->data.ccwdev, 0)) | |
525 | napi_schedule(&card->napi); | |
526 | out: | |
527 | if (card->options.performance_stats) | |
528 | card->perf_stats.inbound_time += qeth_get_micros() - | |
529 | card->perf_stats.inbound_start_time; | |
530 | return work_done; | |
4a71df50 FB |
531 | } |
532 | ||
533 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
534 | enum qeth_ipa_cmds ipacmd, | |
535 | int (*reply_cb) (struct qeth_card *, | |
536 | struct qeth_reply*, | |
537 | unsigned long)) | |
538 | { | |
539 | struct qeth_ipa_cmd *cmd; | |
540 | struct qeth_cmd_buffer *iob; | |
541 | ||
847a50fd | 542 | QETH_CARD_TEXT(card, 2, "L2sdmac"); |
4a71df50 FB |
543 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
544 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
545 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
546 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
547 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
548 | } | |
549 | ||
550 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
551 | struct qeth_reply *reply, | |
552 | unsigned long data) | |
553 | { | |
554 | struct qeth_ipa_cmd *cmd; | |
555 | ||
847a50fd | 556 | QETH_CARD_TEXT(card, 2, "L2Smaccb"); |
4a71df50 FB |
557 | cmd = (struct qeth_ipa_cmd *) data; |
558 | if (cmd->hdr.return_code) { | |
847a50fd | 559 | QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 | 560 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
0666eb06 UB |
561 | switch (cmd->hdr.return_code) { |
562 | case IPA_RC_L2_DUP_MAC: | |
563 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
564 | dev_warn(&card->gdev->dev, | |
d998ab0b | 565 | "MAC address %pM already exists\n", |
221c17fe | 566 | cmd->data.setdelmac.mac); |
0666eb06 UB |
567 | break; |
568 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
569 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
570 | dev_warn(&card->gdev->dev, | |
d998ab0b | 571 | "MAC address %pM is not authorized\n", |
221c17fe | 572 | cmd->data.setdelmac.mac); |
0666eb06 UB |
573 | break; |
574 | default: | |
575 | break; | |
576 | } | |
4a71df50 FB |
577 | } else { |
578 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
579 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
580 | OSA_ADDR_LEN); | |
74eacdb9 | 581 | dev_info(&card->gdev->dev, |
d998ab0b HS |
582 | "MAC address %pM successfully registered on device %s\n", |
583 | card->dev->dev_addr, card->dev->name); | |
4a71df50 FB |
584 | } |
585 | return 0; | |
586 | } | |
587 | ||
588 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
589 | { | |
847a50fd | 590 | QETH_CARD_TEXT(card, 2, "L2Setmac"); |
4a71df50 FB |
591 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
592 | qeth_l2_send_setmac_cb); | |
593 | } | |
594 | ||
595 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
596 | struct qeth_reply *reply, | |
597 | unsigned long data) | |
598 | { | |
599 | struct qeth_ipa_cmd *cmd; | |
600 | ||
847a50fd | 601 | QETH_CARD_TEXT(card, 2, "L2Dmaccb"); |
4a71df50 FB |
602 | cmd = (struct qeth_ipa_cmd *) data; |
603 | if (cmd->hdr.return_code) { | |
847a50fd | 604 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
605 | return 0; |
606 | } | |
607 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
612 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
613 | { | |
847a50fd | 614 | QETH_CARD_TEXT(card, 2, "L2Delmac"); |
4a71df50 FB |
615 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
616 | return 0; | |
617 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
618 | qeth_l2_send_delmac_cb); | |
619 | } | |
620 | ||
621 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
622 | { | |
623 | int rc = 0; | |
624 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
625 | ||
d11ba0c4 PT |
626 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
627 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
628 | |
629 | rc = qeth_query_setadapterparms(card); | |
630 | if (rc) { | |
14cc21b6 FB |
631 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
632 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
633 | } |
634 | ||
5113fec0 UB |
635 | if (card->info.type == QETH_CARD_TYPE_IQD || |
636 | card->info.type == QETH_CARD_TYPE_OSM || | |
637 | card->info.type == QETH_CARD_TYPE_OSX || | |
638 | card->info.guestlan) { | |
4a71df50 FB |
639 | rc = qeth_setadpparms_change_macaddr(card); |
640 | if (rc) { | |
14cc21b6 FB |
641 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
642 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 643 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
644 | return rc; |
645 | } | |
d11ba0c4 | 646 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 | 647 | } else { |
1833611d | 648 | eth_random_addr(card->dev->dev_addr); |
4a71df50 FB |
649 | memcpy(card->dev->dev_addr, vendor_pre, 3); |
650 | } | |
651 | return 0; | |
652 | } | |
653 | ||
654 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
655 | { | |
656 | struct sockaddr *addr = p; | |
509e2562 | 657 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
658 | int rc = 0; |
659 | ||
847a50fd | 660 | QETH_CARD_TEXT(card, 3, "setmac"); |
4a71df50 FB |
661 | |
662 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
847a50fd | 663 | QETH_CARD_TEXT(card, 3, "setmcINV"); |
4a71df50 FB |
664 | return -EOPNOTSUPP; |
665 | } | |
666 | ||
5113fec0 UB |
667 | if (card->info.type == QETH_CARD_TYPE_OSN || |
668 | card->info.type == QETH_CARD_TYPE_OSM || | |
669 | card->info.type == QETH_CARD_TYPE_OSX) { | |
847a50fd | 670 | QETH_CARD_TEXT(card, 3, "setmcTYP"); |
4a71df50 FB |
671 | return -EOPNOTSUPP; |
672 | } | |
847a50fd | 673 | QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); |
8e98ac48 | 674 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 675 | QETH_CARD_TEXT(card, 3, "setmcREC"); |
8e98ac48 UB |
676 | return -ERESTARTSYS; |
677 | } | |
4a71df50 FB |
678 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
679 | if (!rc) | |
680 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
e0a8114c | 681 | return rc ? -EINVAL : 0; |
4a71df50 FB |
682 | } |
683 | ||
684 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
685 | { | |
509e2562 | 686 | struct qeth_card *card = dev->ml_priv; |
ccffad25 | 687 | struct netdev_hw_addr *ha; |
4a71df50 FB |
688 | |
689 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
690 | return ; | |
691 | ||
847a50fd | 692 | QETH_CARD_TEXT(card, 3, "setmulti"); |
8e98ac48 UB |
693 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
694 | (card->state != CARD_STATE_UP)) | |
695 | return; | |
70919e23 | 696 | qeth_l2_del_all_mc(card, 1); |
4a71df50 | 697 | spin_lock_bh(&card->mclock); |
22bedad3 JP |
698 | netdev_for_each_mc_addr(ha, dev) |
699 | qeth_l2_add_mc(card, ha->addr, 0); | |
7db2266a | 700 | |
32e7bfc4 | 701 | netdev_for_each_uc_addr(ha, dev) |
ccffad25 | 702 | qeth_l2_add_mc(card, ha->addr, 1); |
7db2266a | 703 | |
4a71df50 FB |
704 | spin_unlock_bh(&card->mclock); |
705 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
706 | return; | |
707 | qeth_setadp_promisc_mode(card); | |
708 | } | |
709 | ||
710 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
711 | { | |
712 | int rc; | |
713 | struct qeth_hdr *hdr = NULL; | |
714 | int elements = 0; | |
509e2562 | 715 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
716 | struct sk_buff *new_skb = skb; |
717 | int ipv = qeth_get_ip_version(skb); | |
ce73e10e | 718 | int cast_type = qeth_l2_get_cast_type(card, skb); |
4a71df50 FB |
719 | struct qeth_qdio_out_q *queue = card->qdio.out_qs |
720 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
721 | int tx_bytes = skb->len; | |
683d718a FB |
722 | int data_offset = -1; |
723 | int elements_needed = 0; | |
724 | int hd_len = 0; | |
4a71df50 | 725 | |
4a71df50 FB |
726 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
727 | card->stats.tx_carrier_errors++; | |
728 | goto tx_drop; | |
729 | } | |
730 | ||
731 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
732 | (skb->protocol == htons(ETH_P_IPV6))) | |
733 | goto tx_drop; | |
734 | ||
735 | if (card->options.performance_stats) { | |
736 | card->perf_stats.outbound_cnt++; | |
737 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
738 | } | |
739 | netif_stop_queue(dev); | |
740 | ||
4a71df50 FB |
741 | if (card->info.type == QETH_CARD_TYPE_OSN) |
742 | hdr = (struct qeth_hdr *)skb->data; | |
743 | else { | |
64ef8957 | 744 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
745 | new_skb = skb; |
746 | data_offset = ETH_HLEN; | |
747 | hd_len = ETH_HLEN; | |
748 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
749 | GFP_ATOMIC); | |
750 | if (!hdr) | |
751 | goto tx_drop; | |
752 | elements_needed++; | |
753 | skb_reset_mac_header(new_skb); | |
754 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
755 | hdr->hdr.l2.pkt_length = new_skb->len; | |
756 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
757 | skb_mac_header(new_skb), ETH_HLEN); | |
758 | } else { | |
759 | /* create a clone with writeable headroom */ | |
760 | new_skb = skb_realloc_headroom(skb, | |
761 | sizeof(struct qeth_hdr)); | |
762 | if (!new_skb) | |
763 | goto tx_drop; | |
764 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 765 | sizeof(struct qeth_hdr)); |
683d718a FB |
766 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
767 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
768 | } | |
4a71df50 FB |
769 | } |
770 | ||
64ef8957 | 771 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 772 | elements_needed); |
64ef8957 FB |
773 | if (!elements) { |
774 | if (data_offset >= 0) | |
775 | kmem_cache_free(qeth_core_header_cache, hdr); | |
776 | goto tx_drop; | |
f61a0d05 | 777 | } |
4a71df50 | 778 | |
51aa165c FB |
779 | if (card->info.type != QETH_CARD_TYPE_IQD) { |
780 | if (qeth_hdr_chk_and_bounce(new_skb, | |
781 | sizeof(struct qeth_hdr_layer2))) | |
782 | goto tx_drop; | |
4a71df50 | 783 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, |
64ef8957 | 784 | elements); |
51aa165c | 785 | } else |
4a71df50 | 786 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, |
64ef8957 | 787 | elements, data_offset, hd_len); |
4a71df50 FB |
788 | if (!rc) { |
789 | card->stats.tx_packets++; | |
790 | card->stats.tx_bytes += tx_bytes; | |
791 | if (new_skb != skb) | |
792 | dev_kfree_skb_any(skb); | |
ec634fe3 | 793 | rc = NETDEV_TX_OK; |
4a71df50 | 794 | } else { |
683d718a FB |
795 | if (data_offset >= 0) |
796 | kmem_cache_free(qeth_core_header_cache, hdr); | |
797 | ||
4a71df50 FB |
798 | if (rc == -EBUSY) { |
799 | if (new_skb != skb) | |
800 | dev_kfree_skb_any(new_skb); | |
801 | return NETDEV_TX_BUSY; | |
802 | } else | |
803 | goto tx_drop; | |
804 | } | |
805 | ||
806 | netif_wake_queue(dev); | |
807 | if (card->options.performance_stats) | |
808 | card->perf_stats.outbound_time += qeth_get_micros() - | |
809 | card->perf_stats.outbound_start_time; | |
810 | return rc; | |
811 | ||
812 | tx_drop: | |
813 | card->stats.tx_dropped++; | |
814 | card->stats.tx_errors++; | |
815 | if ((new_skb != skb) && new_skb) | |
816 | dev_kfree_skb_any(new_skb); | |
817 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 818 | netif_wake_queue(dev); |
4a71df50 FB |
819 | return NETDEV_TX_OK; |
820 | } | |
821 | ||
39423440 | 822 | static int __qeth_l2_open(struct net_device *dev) |
4a71df50 | 823 | { |
509e2562 | 824 | struct qeth_card *card = dev->ml_priv; |
a1c3ed4c | 825 | int rc = 0; |
4a71df50 | 826 | |
847a50fd | 827 | QETH_CARD_TEXT(card, 4, "qethopen"); |
39423440 UB |
828 | if (card->state == CARD_STATE_UP) |
829 | return rc; | |
4a71df50 FB |
830 | if (card->state != CARD_STATE_SOFTSETUP) |
831 | return -ENODEV; | |
832 | ||
833 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
834 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
847a50fd | 835 | QETH_CARD_TEXT(card, 4, "nomacadr"); |
4a71df50 FB |
836 | return -EPERM; |
837 | } | |
838 | card->data.state = CH_STATE_UP; | |
839 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
840 | netif_start_queue(dev); |
841 | ||
a1c3ed4c FB |
842 | if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { |
843 | napi_enable(&card->napi); | |
844 | napi_schedule(&card->napi); | |
845 | } else | |
846 | rc = -EIO; | |
847 | return rc; | |
4a71df50 FB |
848 | } |
849 | ||
39423440 UB |
850 | static int qeth_l2_open(struct net_device *dev) |
851 | { | |
852 | struct qeth_card *card = dev->ml_priv; | |
853 | ||
854 | QETH_CARD_TEXT(card, 5, "qethope_"); | |
855 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { | |
856 | QETH_CARD_TEXT(card, 3, "openREC"); | |
857 | return -ERESTARTSYS; | |
858 | } | |
859 | return __qeth_l2_open(dev); | |
860 | } | |
861 | ||
4a71df50 FB |
862 | static int qeth_l2_stop(struct net_device *dev) |
863 | { | |
509e2562 | 864 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 865 | |
847a50fd | 866 | QETH_CARD_TEXT(card, 4, "qethstop"); |
4a71df50 | 867 | netif_tx_disable(dev); |
a1c3ed4c | 868 | if (card->state == CARD_STATE_UP) { |
4a71df50 | 869 | card->state = CARD_STATE_SOFTSETUP; |
a1c3ed4c FB |
870 | napi_disable(&card->napi); |
871 | } | |
4a71df50 FB |
872 | return 0; |
873 | } | |
874 | ||
875 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
876 | { | |
877 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
878 | ||
879 | INIT_LIST_HEAD(&card->vid_list); | |
880 | INIT_LIST_HEAD(&card->mc_list); | |
881 | card->options.layer2 = 1; | |
1da74b1c | 882 | card->info.hwtrap = 0; |
4a71df50 FB |
883 | return 0; |
884 | } | |
885 | ||
886 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
887 | { | |
888 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
889 | ||
f2148565 | 890 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
891 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
892 | ||
70919e23 | 893 | if (cgdev->state == CCWGROUP_ONLINE) |
4a71df50 | 894 | qeth_l2_set_offline(cgdev); |
4a71df50 FB |
895 | |
896 | if (card->dev) { | |
897 | unregister_netdev(card->dev); | |
898 | card->dev = NULL; | |
899 | } | |
4a71df50 FB |
900 | return; |
901 | } | |
902 | ||
0fc0b732 | 903 | static const struct ethtool_ops qeth_l2_ethtool_ops = { |
4a71df50 | 904 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
905 | .get_strings = qeth_core_get_strings, |
906 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 907 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 908 | .get_drvinfo = qeth_core_get_drvinfo, |
3f9975aa | 909 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
910 | }; |
911 | ||
0fc0b732 | 912 | static const struct ethtool_ops qeth_l2_osn_ops = { |
4a71df50 FB |
913 | .get_strings = qeth_core_get_strings, |
914 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 915 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 FB |
916 | .get_drvinfo = qeth_core_get_drvinfo, |
917 | }; | |
918 | ||
3d58cefd | 919 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
920 | .ndo_open = qeth_l2_open, |
921 | .ndo_stop = qeth_l2_stop, | |
922 | .ndo_get_stats = qeth_get_stats, | |
923 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
924 | .ndo_validate_addr = eth_validate_addr, | |
afc4b13d | 925 | .ndo_set_rx_mode = qeth_l2_set_multicast_list, |
8403b13c FB |
926 | .ndo_do_ioctl = qeth_l2_do_ioctl, |
927 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
928 | .ndo_change_mtu = qeth_change_mtu, | |
929 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
930 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
931 | .ndo_tx_timeout = qeth_tx_timeout, | |
932 | }; | |
933 | ||
4a71df50 FB |
934 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
935 | { | |
936 | switch (card->info.type) { | |
4a71df50 FB |
937 | case QETH_CARD_TYPE_IQD: |
938 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
939 | break; | |
940 | case QETH_CARD_TYPE_OSN: | |
941 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
942 | card->dev->flags |= IFF_NOARP; | |
943 | break; | |
944 | default: | |
945 | card->dev = alloc_etherdev(0); | |
946 | } | |
947 | ||
948 | if (!card->dev) | |
949 | return -ENODEV; | |
950 | ||
509e2562 | 951 | card->dev->ml_priv = card; |
4a71df50 | 952 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 953 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 954 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
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); | |
a1c3ed4c | 963 | netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); |
4a71df50 FB |
964 | return register_netdev(card->dev); |
965 | } | |
966 | ||
967 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
968 | { | |
969 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
970 | int rc = 0; | |
971 | enum qeth_card_states recover_flag; | |
972 | ||
973 | BUG_ON(!card); | |
9dc48ccc | 974 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 975 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
976 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
977 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 978 | |
4a71df50 | 979 | recover_flag = card->state; |
4a71df50 FB |
980 | rc = qeth_core_hardsetup_card(card); |
981 | if (rc) { | |
d11ba0c4 | 982 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
aa909224 | 983 | rc = -ENODEV; |
4a71df50 FB |
984 | goto out_remove; |
985 | } | |
986 | ||
aa909224 UB |
987 | if (!card->dev && qeth_l2_setup_netdev(card)) { |
988 | rc = -ENODEV; | |
4a71df50 | 989 | goto out_remove; |
aa909224 | 990 | } |
4a71df50 FB |
991 | |
992 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
993 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
994 | ||
1da74b1c FB |
995 | if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { |
996 | if (card->info.hwtrap && | |
997 | qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) | |
998 | card->info.hwtrap = 0; | |
999 | } else | |
1000 | card->info.hwtrap = 0; | |
1001 | ||
4a71df50 | 1002 | card->state = CARD_STATE_HARDSETUP; |
a1c3ed4c | 1003 | memset(&card->rx, 0, sizeof(struct qeth_rx)); |
4a71df50 FB |
1004 | qeth_print_status_message(card); |
1005 | ||
1006 | /* softsetup */ | |
d11ba0c4 | 1007 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
1008 | |
1009 | rc = qeth_send_startlan(card); | |
1010 | if (rc) { | |
d11ba0c4 | 1011 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 1012 | if (rc == 0xe080) { |
74eacdb9 FB |
1013 | dev_warn(&card->gdev->dev, |
1014 | "The LAN is offline\n"); | |
4a71df50 | 1015 | card->lan_online = 0; |
2b6203bb | 1016 | goto contin; |
4a71df50 | 1017 | } |
aa909224 | 1018 | rc = -ENODEV; |
f2148565 | 1019 | goto out_remove; |
4a71df50 FB |
1020 | } else |
1021 | card->lan_online = 1; | |
1022 | ||
2b6203bb | 1023 | contin: |
5113fec0 UB |
1024 | if ((card->info.type == QETH_CARD_TYPE_OSD) || |
1025 | (card->info.type == QETH_CARD_TYPE_OSX)) | |
d64ecc22 EL |
1026 | /* configure isolation level */ |
1027 | qeth_set_access_ctrl_online(card); | |
5113fec0 UB |
1028 | |
1029 | if (card->info.type != QETH_CARD_TYPE_OSN && | |
1030 | card->info.type != QETH_CARD_TYPE_OSM) | |
70919e23 | 1031 | qeth_l2_process_vlans(card); |
4a71df50 FB |
1032 | |
1033 | netif_tx_disable(card->dev); | |
1034 | ||
1035 | rc = qeth_init_qdio_queues(card); | |
1036 | if (rc) { | |
d11ba0c4 | 1037 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 1038 | rc = -ENODEV; |
4a71df50 FB |
1039 | goto out_remove; |
1040 | } | |
1041 | card->state = CARD_STATE_SOFTSETUP; | |
2b6203bb UB |
1042 | if (card->lan_online) |
1043 | netif_carrier_on(card->dev); | |
1044 | else | |
1045 | netif_carrier_off(card->dev); | |
4a71df50 FB |
1046 | |
1047 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1048 | if (recover_flag == CARD_STATE_RECOVER) { | |
1049 | if (recovery_mode && | |
1050 | card->info.type != QETH_CARD_TYPE_OSN) { | |
39423440 | 1051 | __qeth_l2_open(card->dev); |
4a71df50 FB |
1052 | } else { |
1053 | rtnl_lock(); | |
1054 | dev_open(card->dev); | |
1055 | rtnl_unlock(); | |
1056 | } | |
1057 | /* this also sets saved unicast addresses */ | |
1058 | qeth_l2_set_multicast_list(card->dev); | |
1059 | } | |
1060 | /* let user_space know that device is online */ | |
1061 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1062 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1063 | mutex_unlock(&card->discipline_mutex); |
4a71df50 | 1064 | return 0; |
aa909224 | 1065 | |
4a71df50 | 1066 | out_remove: |
4a71df50 FB |
1067 | qeth_l2_stop_card(card, 0); |
1068 | ccw_device_set_offline(CARD_DDEV(card)); | |
1069 | ccw_device_set_offline(CARD_WDEV(card)); | |
1070 | ccw_device_set_offline(CARD_RDEV(card)); | |
1071 | if (recover_flag == CARD_STATE_RECOVER) | |
1072 | card->state = CARD_STATE_RECOVER; | |
1073 | else | |
1074 | card->state = CARD_STATE_DOWN; | |
c4949f07 | 1075 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1076 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 1077 | return rc; |
4a71df50 FB |
1078 | } |
1079 | ||
1080 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1081 | { | |
1082 | return __qeth_l2_set_online(gdev, 0); | |
1083 | } | |
1084 | ||
1085 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1086 | int recovery_mode) | |
1087 | { | |
1088 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1089 | int rc = 0, rc2 = 0, rc3 = 0; | |
1090 | enum qeth_card_states recover_flag; | |
1091 | ||
9dc48ccc | 1092 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 1093 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
1094 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1095 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1096 | |
1097 | if (card->dev && netif_carrier_ok(card->dev)) | |
1098 | netif_carrier_off(card->dev); | |
1099 | recover_flag = card->state; | |
1da74b1c FB |
1100 | if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { |
1101 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
1102 | card->info.hwtrap = 1; | |
1103 | } | |
0f5623c9 | 1104 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1105 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1106 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1107 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1108 | if (!rc) | |
1109 | rc = (rc2) ? rc2 : rc3; | |
1110 | if (rc) | |
d11ba0c4 | 1111 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1112 | if (recover_flag == CARD_STATE_UP) |
1113 | card->state = CARD_STATE_RECOVER; | |
1114 | /* let user_space know that device is offline */ | |
1115 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1116 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1117 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
1118 | return 0; |
1119 | } | |
1120 | ||
1121 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1122 | { | |
1123 | return __qeth_l2_set_offline(cgdev, 0); | |
1124 | } | |
1125 | ||
1126 | static int qeth_l2_recover(void *ptr) | |
1127 | { | |
1128 | struct qeth_card *card; | |
1129 | int rc = 0; | |
1130 | ||
1131 | card = (struct qeth_card *) ptr; | |
847a50fd | 1132 | QETH_CARD_TEXT(card, 2, "recover1"); |
4a71df50 FB |
1133 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1134 | return 0; | |
847a50fd | 1135 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
1136 | dev_warn(&card->gdev->dev, |
1137 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1138 | __qeth_l2_set_offline(card->gdev, 1); |
1139 | rc = __qeth_l2_set_online(card->gdev, 1); | |
4a71df50 | 1140 | if (!rc) |
74eacdb9 FB |
1141 | dev_info(&card->gdev->dev, |
1142 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1143 | else { |
2efaf5ff SR |
1144 | if (rtnl_trylock()) { |
1145 | dev_close(card->dev); | |
1146 | rtnl_unlock(); | |
1147 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1148 | "failed to recover an error on the device\n"); | |
1149 | } | |
28a7e4c9 | 1150 | } |
a1c3ed4c FB |
1151 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
1152 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
1153 | return 0; |
1154 | } | |
1155 | ||
1156 | static int __init qeth_l2_init(void) | |
1157 | { | |
74eacdb9 | 1158 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1159 | return 0; |
1160 | } | |
1161 | ||
1162 | static void __exit qeth_l2_exit(void) | |
1163 | { | |
74eacdb9 | 1164 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1165 | } |
1166 | ||
1167 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1168 | { | |
1169 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
f78ac2bb | 1170 | qeth_set_allowed_threads(card, 0, 1); |
1da74b1c FB |
1171 | if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) |
1172 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
4a71df50 FB |
1173 | qeth_qdio_clear_card(card, 0); |
1174 | qeth_clear_qdio_buffers(card); | |
1175 | } | |
1176 | ||
bbcfcdc8 FB |
1177 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
1178 | { | |
1179 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1180 | ||
1181 | if (card->dev) | |
1182 | netif_device_detach(card->dev); | |
1183 | qeth_set_allowed_threads(card, 0, 1); | |
1184 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
1185 | if (gdev->state == CCWGROUP_OFFLINE) | |
1186 | return 0; | |
1187 | if (card->state == CARD_STATE_UP) { | |
1da74b1c FB |
1188 | if (card->info.hwtrap) |
1189 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
bbcfcdc8 FB |
1190 | __qeth_l2_set_offline(card->gdev, 1); |
1191 | } else | |
1192 | __qeth_l2_set_offline(card->gdev, 0); | |
1193 | return 0; | |
1194 | } | |
1195 | ||
1196 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
1197 | { | |
1198 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1199 | int rc = 0; | |
1200 | ||
1201 | if (gdev->state == CCWGROUP_OFFLINE) | |
1202 | goto out; | |
1203 | ||
1204 | if (card->state == CARD_STATE_RECOVER) { | |
1205 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1206 | if (rc) { | |
869da90b UB |
1207 | rtnl_lock(); |
1208 | dev_close(card->dev); | |
1209 | rtnl_unlock(); | |
bbcfcdc8 FB |
1210 | } |
1211 | } else | |
1212 | rc = __qeth_l2_set_online(card->gdev, 0); | |
1213 | out: | |
1214 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1215 | if (card->dev) | |
1216 | netif_device_attach(card->dev); | |
1217 | if (rc) | |
1218 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1219 | "failed to recover an error on the device\n"); | |
1220 | return rc; | |
1221 | } | |
1222 | ||
c041f2d4 SO |
1223 | struct qeth_discipline qeth_l2_discipline = { |
1224 | .start_poll = qeth_qdio_start_poll, | |
1225 | .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, | |
1226 | .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, | |
1227 | .recover = qeth_l2_recover, | |
1228 | .setup = qeth_l2_probe_device, | |
4a71df50 FB |
1229 | .remove = qeth_l2_remove_device, |
1230 | .set_online = qeth_l2_set_online, | |
1231 | .set_offline = qeth_l2_set_offline, | |
1232 | .shutdown = qeth_l2_shutdown, | |
bbcfcdc8 FB |
1233 | .freeze = qeth_l2_pm_suspend, |
1234 | .thaw = qeth_l2_pm_resume, | |
1235 | .restore = qeth_l2_pm_resume, | |
4a71df50 | 1236 | }; |
c041f2d4 | 1237 | EXPORT_SYMBOL_GPL(qeth_l2_discipline); |
4a71df50 FB |
1238 | |
1239 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1240 | struct qeth_cmd_buffer *iob) | |
1241 | { | |
1242 | unsigned long flags; | |
1243 | int rc = 0; | |
1244 | ||
847a50fd | 1245 | QETH_CARD_TEXT(card, 5, "osndctrd"); |
4a71df50 FB |
1246 | |
1247 | wait_event(card->wait_q, | |
1248 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1249 | qeth_prepare_control_data(card, len, iob); | |
847a50fd | 1250 | QETH_CARD_TEXT(card, 6, "osnoirqp"); |
4a71df50 FB |
1251 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1252 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1253 | (addr_t) iob, 0, 0); | |
1254 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1255 | if (rc) { | |
14cc21b6 | 1256 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1257 | "ccw_device_start rc = %i\n", rc); |
847a50fd | 1258 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
1259 | qeth_release_buffer(iob->channel, iob); |
1260 | atomic_set(&card->write.irq_pending, 0); | |
1261 | wake_up(&card->wait_q); | |
1262 | } | |
1263 | return rc; | |
1264 | } | |
1265 | ||
1266 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1267 | struct qeth_cmd_buffer *iob, int data_len) | |
1268 | { | |
1269 | u16 s1, s2; | |
1270 | ||
847a50fd | 1271 | QETH_CARD_TEXT(card, 4, "osndipa"); |
4a71df50 FB |
1272 | |
1273 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1274 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1275 | s2 = (u16)data_len; | |
1276 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1277 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1278 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1279 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1280 | return qeth_osn_send_control_data(card, s1, iob); | |
1281 | } | |
1282 | ||
1283 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1284 | { | |
1285 | struct qeth_cmd_buffer *iob; | |
1286 | struct qeth_card *card; | |
1287 | int rc; | |
1288 | ||
4a71df50 FB |
1289 | if (!dev) |
1290 | return -ENODEV; | |
509e2562 | 1291 | card = dev->ml_priv; |
4a71df50 FB |
1292 | if (!card) |
1293 | return -ENODEV; | |
847a50fd | 1294 | QETH_CARD_TEXT(card, 2, "osnsdmc"); |
4a71df50 FB |
1295 | if ((card->state != CARD_STATE_UP) && |
1296 | (card->state != CARD_STATE_SOFTSETUP)) | |
1297 | return -ENODEV; | |
1298 | iob = qeth_wait_for_buffer(&card->write); | |
1299 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1300 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1301 | return rc; | |
1302 | } | |
1303 | EXPORT_SYMBOL(qeth_osn_assist); | |
1304 | ||
1305 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1306 | int (*assist_cb)(struct net_device *, void *), | |
1307 | int (*data_cb)(struct sk_buff *)) | |
1308 | { | |
1309 | struct qeth_card *card; | |
1310 | ||
4a71df50 FB |
1311 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1312 | if (*dev == NULL) | |
1313 | return -ENODEV; | |
509e2562 | 1314 | card = (*dev)->ml_priv; |
4a71df50 FB |
1315 | if (!card) |
1316 | return -ENODEV; | |
847a50fd | 1317 | QETH_CARD_TEXT(card, 2, "osnreg"); |
4a71df50 FB |
1318 | if ((assist_cb == NULL) || (data_cb == NULL)) |
1319 | return -EINVAL; | |
1320 | card->osn_info.assist_cb = assist_cb; | |
1321 | card->osn_info.data_cb = data_cb; | |
1322 | return 0; | |
1323 | } | |
1324 | EXPORT_SYMBOL(qeth_osn_register); | |
1325 | ||
1326 | void qeth_osn_deregister(struct net_device *dev) | |
1327 | { | |
1328 | struct qeth_card *card; | |
1329 | ||
4a71df50 FB |
1330 | if (!dev) |
1331 | return; | |
509e2562 | 1332 | card = dev->ml_priv; |
4a71df50 FB |
1333 | if (!card) |
1334 | return; | |
847a50fd | 1335 | QETH_CARD_TEXT(card, 2, "osndereg"); |
4a71df50 FB |
1336 | card->osn_info.assist_cb = NULL; |
1337 | card->osn_info.data_cb = NULL; | |
1338 | return; | |
1339 | } | |
1340 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1341 | ||
1342 | module_init(qeth_l2_init); | |
1343 | module_exit(qeth_l2_exit); | |
1344 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1345 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1346 | MODULE_LICENSE("GPL"); |