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; | |
c3ab96f3 FB |
78 | case SIOC_QETH_QUERY_OAT: |
79 | rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); | |
80 | break; | |
4a71df50 FB |
81 | default: |
82 | rc = -EOPNOTSUPP; | |
83 | } | |
84 | if (rc) | |
847a50fd | 85 | QETH_CARD_TEXT_(card, 2, "ioce%d", rc); |
4a71df50 FB |
86 | return rc; |
87 | } | |
88 | ||
89 | static int qeth_l2_verify_dev(struct net_device *dev) | |
90 | { | |
91 | struct qeth_card *card; | |
92 | unsigned long flags; | |
93 | int rc = 0; | |
94 | ||
95 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
96 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
97 | if (card->dev == dev) { | |
98 | rc = QETH_REAL_CARD; | |
99 | break; | |
100 | } | |
101 | } | |
102 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
103 | ||
104 | return rc; | |
105 | } | |
106 | ||
107 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) | |
108 | { | |
109 | struct qeth_card *card; | |
110 | struct net_device *ndev; | |
f06f6f32 | 111 | __u16 temp_dev_no; |
4a71df50 | 112 | unsigned long flags; |
f06f6f32 | 113 | struct ccw_dev_id read_devid; |
4a71df50 FB |
114 | |
115 | ndev = NULL; | |
116 | memcpy(&temp_dev_no, read_dev_no, 2); | |
117 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
118 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
119 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
120 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
121 | ndev = card->dev; |
122 | break; | |
123 | } | |
124 | } | |
125 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
126 | return ndev; | |
127 | } | |
128 | ||
129 | static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, | |
130 | struct qeth_reply *reply, | |
131 | unsigned long data) | |
132 | { | |
133 | struct qeth_ipa_cmd *cmd; | |
134 | __u8 *mac; | |
135 | ||
847a50fd | 136 | QETH_CARD_TEXT(card, 2, "L2Sgmacb"); |
4a71df50 FB |
137 | cmd = (struct qeth_ipa_cmd *) data; |
138 | mac = &cmd->data.setdelmac.mac[0]; | |
139 | /* MAC already registered, needed in couple/uncouple case */ | |
0666eb06 | 140 | if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { |
7c510e4b JB |
141 | QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
142 | mac, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
143 | cmd->hdr.return_code = 0; |
144 | } | |
145 | if (cmd->hdr.return_code) | |
7c510e4b JB |
146 | QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
147 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
148 | return 0; |
149 | } | |
150 | ||
151 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
152 | { | |
847a50fd | 153 | QETH_CARD_TEXT(card, 2, "L2Sgmac"); |
4a71df50 FB |
154 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
155 | qeth_l2_send_setgroupmac_cb); | |
156 | } | |
157 | ||
158 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
159 | struct qeth_reply *reply, | |
160 | unsigned long data) | |
161 | { | |
162 | struct qeth_ipa_cmd *cmd; | |
163 | __u8 *mac; | |
164 | ||
847a50fd | 165 | QETH_CARD_TEXT(card, 2, "L2Dgmacb"); |
4a71df50 FB |
166 | cmd = (struct qeth_ipa_cmd *) data; |
167 | mac = &cmd->data.setdelmac.mac[0]; | |
168 | if (cmd->hdr.return_code) | |
7c510e4b JB |
169 | QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
170 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
171 | return 0; |
172 | } | |
173 | ||
174 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
175 | { | |
847a50fd | 176 | QETH_CARD_TEXT(card, 2, "L2Dgmac"); |
4a71df50 FB |
177 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
178 | qeth_l2_send_delgroupmac_cb); | |
179 | } | |
180 | ||
7db2266a | 181 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
4a71df50 FB |
182 | { |
183 | struct qeth_mc_mac *mc; | |
7db2266a | 184 | int rc; |
4a71df50 FB |
185 | |
186 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
187 | ||
14cc21b6 | 188 | if (!mc) |
4a71df50 | 189 | return; |
4a71df50 FB |
190 | |
191 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
192 | mc->mc_addrlen = OSA_ADDR_LEN; | |
7db2266a FB |
193 | mc->is_vmac = vmac; |
194 | ||
195 | if (vmac) { | |
196 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, | |
197 | NULL); | |
198 | } else { | |
199 | rc = qeth_l2_send_setgroupmac(card, mac); | |
200 | } | |
4a71df50 | 201 | |
7db2266a | 202 | if (!rc) |
4a71df50 FB |
203 | list_add_tail(&mc->list, &card->mc_list); |
204 | else | |
205 | kfree(mc); | |
206 | } | |
207 | ||
70919e23 | 208 | static void qeth_l2_del_all_mc(struct qeth_card *card, int del) |
4a71df50 FB |
209 | { |
210 | struct qeth_mc_mac *mc, *tmp; | |
211 | ||
212 | spin_lock_bh(&card->mclock); | |
213 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
70919e23 UB |
214 | if (del) { |
215 | if (mc->is_vmac) | |
216 | qeth_l2_send_setdelmac(card, mc->mc_addr, | |
7db2266a | 217 | IPA_CMD_DELVMAC, NULL); |
70919e23 UB |
218 | else |
219 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
220 | } | |
4a71df50 FB |
221 | list_del(&mc->list); |
222 | kfree(mc); | |
223 | } | |
224 | spin_unlock_bh(&card->mclock); | |
225 | } | |
226 | ||
ce73e10e KDW |
227 | static inline int qeth_l2_get_cast_type(struct qeth_card *card, |
228 | struct sk_buff *skb) | |
4a71df50 | 229 | { |
ce73e10e KDW |
230 | if (card->info.type == QETH_CARD_TYPE_OSN) |
231 | return RTN_UNSPEC; | |
232 | if (is_broadcast_ether_addr(skb->data)) | |
233 | return RTN_BROADCAST; | |
234 | if (is_multicast_ether_addr(skb->data)) | |
235 | return RTN_MULTICAST; | |
236 | return RTN_UNSPEC; | |
4a71df50 FB |
237 | } |
238 | ||
239 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
240 | struct sk_buff *skb, int ipv, int cast_type) | |
241 | { | |
683d718a | 242 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
243 | |
244 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
245 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
246 | ||
247 | /* set byte byte 3 to casting flags */ | |
248 | if (cast_type == RTN_MULTICAST) | |
249 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
250 | else if (cast_type == RTN_BROADCAST) | |
251 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
252 | else | |
ce73e10e | 253 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
4a71df50 FB |
254 | |
255 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
256 | /* VSWITCH relies on the VLAN | |
257 | * information to be present in | |
258 | * the QDIO header */ | |
259 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
260 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
261 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
262 | } | |
263 | } | |
264 | ||
265 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
266 | struct qeth_reply *reply, unsigned long data) | |
267 | { | |
268 | struct qeth_ipa_cmd *cmd; | |
269 | ||
847a50fd | 270 | QETH_CARD_TEXT(card, 2, "L2sdvcb"); |
4a71df50 FB |
271 | cmd = (struct qeth_ipa_cmd *) data; |
272 | if (cmd->hdr.return_code) { | |
14cc21b6 | 273 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
274 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
275 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
847a50fd CO |
276 | QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); |
277 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
278 | } |
279 | return 0; | |
280 | } | |
281 | ||
282 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
283 | enum qeth_ipa_cmds ipacmd) | |
284 | { | |
285 | struct qeth_ipa_cmd *cmd; | |
286 | struct qeth_cmd_buffer *iob; | |
287 | ||
847a50fd | 288 | QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
289 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
290 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
291 | cmd->data.setdelvlan.vlan_id = i; | |
292 | return qeth_send_ipa_cmd(card, iob, | |
293 | qeth_l2_send_setdelvlan_cb, NULL); | |
294 | } | |
295 | ||
70919e23 | 296 | static void qeth_l2_process_vlans(struct qeth_card *card) |
4a71df50 FB |
297 | { |
298 | struct qeth_vlan_vid *id; | |
847a50fd | 299 | QETH_CARD_TEXT(card, 3, "L2prcvln"); |
4a71df50 FB |
300 | spin_lock_bh(&card->vlanlock); |
301 | list_for_each_entry(id, &card->vid_list, list) { | |
70919e23 | 302 | qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); |
4a71df50 FB |
303 | } |
304 | spin_unlock_bh(&card->vlanlock); | |
305 | } | |
306 | ||
8e586137 | 307 | static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
4a71df50 | 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 | 313 | if (!vid) |
8e586137 | 314 | return 0; |
5113fec0 | 315 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 316 | QETH_CARD_TEXT(card, 3, "aidOSM"); |
8e586137 | 317 | return 0; |
5113fec0 | 318 | } |
8e98ac48 | 319 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 320 | QETH_CARD_TEXT(card, 3, "aidREC"); |
8e586137 | 321 | return 0; |
8e98ac48 | 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); | |
8e586137 JP |
330 | } else { |
331 | return -ENOMEM; | |
4a71df50 | 332 | } |
8e586137 | 333 | return 0; |
4a71df50 FB |
334 | } |
335 | ||
8e586137 | 336 | static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
4a71df50 FB |
337 | { |
338 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 339 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 340 | |
847a50fd | 341 | QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
5113fec0 | 342 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 343 | QETH_CARD_TEXT(card, 3, "kidOSM"); |
8e586137 | 344 | return 0; |
5113fec0 | 345 | } |
8e98ac48 | 346 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 347 | QETH_CARD_TEXT(card, 3, "kidREC"); |
8e586137 | 348 | return 0; |
8e98ac48 | 349 | } |
4a71df50 FB |
350 | spin_lock_bh(&card->vlanlock); |
351 | list_for_each_entry(id, &card->vid_list, list) { | |
352 | if (id->vid == vid) { | |
353 | list_del(&id->list); | |
354 | tmpid = id; | |
355 | break; | |
356 | } | |
357 | } | |
358 | spin_unlock_bh(&card->vlanlock); | |
359 | if (tmpid) { | |
360 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
361 | kfree(tmpid); | |
362 | } | |
363 | qeth_l2_set_multicast_list(card->dev); | |
8e586137 | 364 | return 0; |
4a71df50 FB |
365 | } |
366 | ||
367 | static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) | |
368 | { | |
369 | int rc = 0; | |
370 | ||
d11ba0c4 PT |
371 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
372 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
373 | |
374 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
375 | if (card->read.state == CH_STATE_UP && |
376 | card->write.state == CH_STATE_UP && | |
377 | (card->state == CARD_STATE_UP)) { | |
378 | if (recovery_mode && | |
379 | card->info.type != QETH_CARD_TYPE_OSN) { | |
380 | qeth_l2_stop(card->dev); | |
381 | } else { | |
382 | rtnl_lock(); | |
383 | dev_close(card->dev); | |
384 | rtnl_unlock(); | |
385 | } | |
70919e23 | 386 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
4a71df50 FB |
387 | card->state = CARD_STATE_SOFTSETUP; |
388 | } | |
389 | if (card->state == CARD_STATE_SOFTSETUP) { | |
70919e23 | 390 | qeth_l2_del_all_mc(card, 0); |
4a71df50 FB |
391 | qeth_clear_ipacmd_list(card); |
392 | card->state = CARD_STATE_HARDSETUP; | |
393 | } | |
394 | if (card->state == CARD_STATE_HARDSETUP) { | |
395 | qeth_qdio_clear_card(card, 0); | |
396 | qeth_clear_qdio_buffers(card); | |
397 | qeth_clear_working_pool_list(card); | |
398 | card->state = CARD_STATE_DOWN; | |
399 | } | |
400 | if (card->state == CARD_STATE_DOWN) { | |
401 | qeth_clear_cmd_buffers(&card->read); | |
402 | qeth_clear_cmd_buffers(&card->write); | |
403 | } | |
4a71df50 FB |
404 | return rc; |
405 | } | |
406 | ||
a1c3ed4c FB |
407 | static int qeth_l2_process_inbound_buffer(struct qeth_card *card, |
408 | int budget, int *done) | |
4a71df50 | 409 | { |
a1c3ed4c | 410 | int work_done = 0; |
4a71df50 FB |
411 | struct sk_buff *skb; |
412 | struct qeth_hdr *hdr; | |
4a71df50 FB |
413 | unsigned int len; |
414 | ||
a1c3ed4c FB |
415 | *done = 0; |
416 | BUG_ON(!budget); | |
417 | while (budget) { | |
418 | skb = qeth_core_get_next_skb(card, | |
b3332930 | 419 | &card->qdio.in_q->bufs[card->rx.b_index], |
a1c3ed4c FB |
420 | &card->rx.b_element, &card->rx.e_offset, &hdr); |
421 | if (!skb) { | |
422 | *done = 1; | |
423 | break; | |
4a71df50 | 424 | } |
a1c3ed4c | 425 | skb->dev = card->dev; |
4a71df50 FB |
426 | switch (hdr->hdr.l2.id) { |
427 | case QETH_HEADER_TYPE_LAYER2: | |
428 | skb->pkt_type = PACKET_HOST; | |
429 | skb->protocol = eth_type_trans(skb, skb->dev); | |
c5e631a8 | 430 | skb->ip_summed = CHECKSUM_NONE; |
12883725 UB |
431 | if (skb->protocol == htons(ETH_P_802_2)) |
432 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 | 433 | len = skb->len; |
a1c3ed4c | 434 | netif_receive_skb(skb); |
4a71df50 FB |
435 | break; |
436 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
437 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
438 | skb_push(skb, sizeof(struct qeth_hdr)); | |
439 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 440 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
441 | len = skb->len; |
442 | card->osn_info.data_cb(skb); | |
443 | break; | |
444 | } | |
445 | /* else unknown */ | |
4a71df50 FB |
446 | default: |
447 | dev_kfree_skb_any(skb); | |
847a50fd | 448 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
d11ba0c4 | 449 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
450 | continue; |
451 | } | |
a1c3ed4c FB |
452 | work_done++; |
453 | budget--; | |
4a71df50 FB |
454 | card->stats.rx_packets++; |
455 | card->stats.rx_bytes += len; | |
456 | } | |
a1c3ed4c FB |
457 | return work_done; |
458 | } | |
459 | ||
460 | static int qeth_l2_poll(struct napi_struct *napi, int budget) | |
461 | { | |
462 | struct qeth_card *card = container_of(napi, struct qeth_card, napi); | |
463 | int work_done = 0; | |
464 | struct qeth_qdio_buffer *buffer; | |
465 | int done; | |
466 | int new_budget = budget; | |
467 | ||
468 | if (card->options.performance_stats) { | |
469 | card->perf_stats.inbound_cnt++; | |
470 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
471 | } | |
472 | ||
473 | while (1) { | |
474 | if (!card->rx.b_count) { | |
475 | card->rx.qdio_err = 0; | |
476 | card->rx.b_count = qdio_get_next_buffers( | |
477 | card->data.ccwdev, 0, &card->rx.b_index, | |
478 | &card->rx.qdio_err); | |
479 | if (card->rx.b_count <= 0) { | |
480 | card->rx.b_count = 0; | |
481 | break; | |
482 | } | |
483 | card->rx.b_element = | |
484 | &card->qdio.in_q->bufs[card->rx.b_index] | |
485 | .buffer->element[0]; | |
486 | card->rx.e_offset = 0; | |
487 | } | |
488 | ||
489 | while (card->rx.b_count) { | |
490 | buffer = &card->qdio.in_q->bufs[card->rx.b_index]; | |
491 | if (!(card->rx.qdio_err && | |
492 | qeth_check_qdio_errors(card, buffer->buffer, | |
493 | card->rx.qdio_err, "qinerr"))) | |
494 | work_done += qeth_l2_process_inbound_buffer( | |
495 | card, new_budget, &done); | |
496 | else | |
497 | done = 1; | |
498 | ||
499 | if (done) { | |
500 | if (card->options.performance_stats) | |
501 | card->perf_stats.bufs_rec++; | |
502 | qeth_put_buffer_pool_entry(card, | |
503 | buffer->pool_entry); | |
504 | qeth_queue_input_buffer(card, card->rx.b_index); | |
505 | card->rx.b_count--; | |
506 | if (card->rx.b_count) { | |
507 | card->rx.b_index = | |
508 | (card->rx.b_index + 1) % | |
509 | QDIO_MAX_BUFFERS_PER_Q; | |
510 | card->rx.b_element = | |
511 | &card->qdio.in_q | |
512 | ->bufs[card->rx.b_index] | |
513 | .buffer->element[0]; | |
514 | card->rx.e_offset = 0; | |
515 | } | |
516 | } | |
517 | ||
518 | if (work_done >= budget) | |
519 | goto out; | |
520 | else | |
521 | new_budget = budget - work_done; | |
522 | } | |
523 | } | |
524 | ||
525 | napi_complete(napi); | |
526 | if (qdio_start_irq(card->data.ccwdev, 0)) | |
527 | napi_schedule(&card->napi); | |
528 | out: | |
529 | if (card->options.performance_stats) | |
530 | card->perf_stats.inbound_time += qeth_get_micros() - | |
531 | card->perf_stats.inbound_start_time; | |
532 | return work_done; | |
4a71df50 FB |
533 | } |
534 | ||
535 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
536 | enum qeth_ipa_cmds ipacmd, | |
537 | int (*reply_cb) (struct qeth_card *, | |
538 | struct qeth_reply*, | |
539 | unsigned long)) | |
540 | { | |
541 | struct qeth_ipa_cmd *cmd; | |
542 | struct qeth_cmd_buffer *iob; | |
543 | ||
847a50fd | 544 | QETH_CARD_TEXT(card, 2, "L2sdmac"); |
4a71df50 FB |
545 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
546 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
547 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
548 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
549 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
550 | } | |
551 | ||
552 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
553 | struct qeth_reply *reply, | |
554 | unsigned long data) | |
555 | { | |
556 | struct qeth_ipa_cmd *cmd; | |
557 | ||
847a50fd | 558 | QETH_CARD_TEXT(card, 2, "L2Smaccb"); |
4a71df50 FB |
559 | cmd = (struct qeth_ipa_cmd *) data; |
560 | if (cmd->hdr.return_code) { | |
847a50fd | 561 | QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 | 562 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
0666eb06 UB |
563 | switch (cmd->hdr.return_code) { |
564 | case IPA_RC_L2_DUP_MAC: | |
565 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
566 | dev_warn(&card->gdev->dev, | |
d998ab0b | 567 | "MAC address %pM already exists\n", |
221c17fe | 568 | cmd->data.setdelmac.mac); |
0666eb06 UB |
569 | break; |
570 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
571 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
572 | dev_warn(&card->gdev->dev, | |
d998ab0b | 573 | "MAC address %pM is not authorized\n", |
221c17fe | 574 | cmd->data.setdelmac.mac); |
0666eb06 UB |
575 | break; |
576 | default: | |
577 | break; | |
578 | } | |
4a71df50 FB |
579 | } else { |
580 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
581 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
582 | OSA_ADDR_LEN); | |
74eacdb9 | 583 | dev_info(&card->gdev->dev, |
d998ab0b HS |
584 | "MAC address %pM successfully registered on device %s\n", |
585 | card->dev->dev_addr, card->dev->name); | |
4a71df50 FB |
586 | } |
587 | return 0; | |
588 | } | |
589 | ||
590 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
591 | { | |
847a50fd | 592 | QETH_CARD_TEXT(card, 2, "L2Setmac"); |
4a71df50 FB |
593 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
594 | qeth_l2_send_setmac_cb); | |
595 | } | |
596 | ||
597 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
598 | struct qeth_reply *reply, | |
599 | unsigned long data) | |
600 | { | |
601 | struct qeth_ipa_cmd *cmd; | |
602 | ||
847a50fd | 603 | QETH_CARD_TEXT(card, 2, "L2Dmaccb"); |
4a71df50 FB |
604 | cmd = (struct qeth_ipa_cmd *) data; |
605 | if (cmd->hdr.return_code) { | |
847a50fd | 606 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
607 | return 0; |
608 | } | |
609 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
615 | { | |
847a50fd | 616 | QETH_CARD_TEXT(card, 2, "L2Delmac"); |
4a71df50 FB |
617 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
618 | return 0; | |
619 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
620 | qeth_l2_send_delmac_cb); | |
621 | } | |
622 | ||
623 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
624 | { | |
625 | int rc = 0; | |
626 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
627 | ||
d11ba0c4 PT |
628 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
629 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
630 | |
631 | rc = qeth_query_setadapterparms(card); | |
632 | if (rc) { | |
14cc21b6 FB |
633 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
634 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
635 | } |
636 | ||
5113fec0 UB |
637 | if (card->info.type == QETH_CARD_TYPE_IQD || |
638 | card->info.type == QETH_CARD_TYPE_OSM || | |
639 | card->info.type == QETH_CARD_TYPE_OSX || | |
640 | card->info.guestlan) { | |
4a71df50 FB |
641 | rc = qeth_setadpparms_change_macaddr(card); |
642 | if (rc) { | |
14cc21b6 FB |
643 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
644 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 645 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
646 | return rc; |
647 | } | |
d11ba0c4 | 648 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
649 | } else { |
650 | random_ether_addr(card->dev->dev_addr); | |
651 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
652 | } | |
653 | return 0; | |
654 | } | |
655 | ||
656 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
657 | { | |
658 | struct sockaddr *addr = p; | |
509e2562 | 659 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
660 | int rc = 0; |
661 | ||
847a50fd | 662 | QETH_CARD_TEXT(card, 3, "setmac"); |
4a71df50 FB |
663 | |
664 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
847a50fd | 665 | QETH_CARD_TEXT(card, 3, "setmcINV"); |
4a71df50 FB |
666 | return -EOPNOTSUPP; |
667 | } | |
668 | ||
5113fec0 UB |
669 | if (card->info.type == QETH_CARD_TYPE_OSN || |
670 | card->info.type == QETH_CARD_TYPE_OSM || | |
671 | card->info.type == QETH_CARD_TYPE_OSX) { | |
847a50fd | 672 | QETH_CARD_TEXT(card, 3, "setmcTYP"); |
4a71df50 FB |
673 | return -EOPNOTSUPP; |
674 | } | |
847a50fd | 675 | QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); |
8e98ac48 | 676 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 677 | QETH_CARD_TEXT(card, 3, "setmcREC"); |
8e98ac48 UB |
678 | return -ERESTARTSYS; |
679 | } | |
4a71df50 FB |
680 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
681 | if (!rc) | |
682 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
e0a8114c | 683 | return rc ? -EINVAL : 0; |
4a71df50 FB |
684 | } |
685 | ||
686 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
687 | { | |
509e2562 | 688 | struct qeth_card *card = dev->ml_priv; |
ccffad25 | 689 | struct netdev_hw_addr *ha; |
4a71df50 FB |
690 | |
691 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
692 | return ; | |
693 | ||
847a50fd | 694 | QETH_CARD_TEXT(card, 3, "setmulti"); |
8e98ac48 UB |
695 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
696 | (card->state != CARD_STATE_UP)) | |
697 | return; | |
70919e23 | 698 | qeth_l2_del_all_mc(card, 1); |
4a71df50 | 699 | spin_lock_bh(&card->mclock); |
22bedad3 JP |
700 | netdev_for_each_mc_addr(ha, dev) |
701 | qeth_l2_add_mc(card, ha->addr, 0); | |
7db2266a | 702 | |
32e7bfc4 | 703 | netdev_for_each_uc_addr(ha, dev) |
ccffad25 | 704 | qeth_l2_add_mc(card, ha->addr, 1); |
7db2266a | 705 | |
4a71df50 FB |
706 | spin_unlock_bh(&card->mclock); |
707 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
708 | return; | |
709 | qeth_setadp_promisc_mode(card); | |
710 | } | |
711 | ||
712 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
713 | { | |
714 | int rc; | |
715 | struct qeth_hdr *hdr = NULL; | |
716 | int elements = 0; | |
509e2562 | 717 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
718 | struct sk_buff *new_skb = skb; |
719 | int ipv = qeth_get_ip_version(skb); | |
ce73e10e | 720 | int cast_type = qeth_l2_get_cast_type(card, skb); |
4a71df50 FB |
721 | struct qeth_qdio_out_q *queue = card->qdio.out_qs |
722 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
723 | int tx_bytes = skb->len; | |
683d718a FB |
724 | int data_offset = -1; |
725 | int elements_needed = 0; | |
726 | int hd_len = 0; | |
4a71df50 | 727 | |
4a71df50 FB |
728 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
729 | card->stats.tx_carrier_errors++; | |
730 | goto tx_drop; | |
731 | } | |
732 | ||
733 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
734 | (skb->protocol == htons(ETH_P_IPV6))) | |
735 | goto tx_drop; | |
736 | ||
737 | if (card->options.performance_stats) { | |
738 | card->perf_stats.outbound_cnt++; | |
739 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
740 | } | |
741 | netif_stop_queue(dev); | |
742 | ||
4a71df50 FB |
743 | if (card->info.type == QETH_CARD_TYPE_OSN) |
744 | hdr = (struct qeth_hdr *)skb->data; | |
745 | else { | |
64ef8957 | 746 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
747 | new_skb = skb; |
748 | data_offset = ETH_HLEN; | |
749 | hd_len = ETH_HLEN; | |
750 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
751 | GFP_ATOMIC); | |
752 | if (!hdr) | |
753 | goto tx_drop; | |
754 | elements_needed++; | |
755 | skb_reset_mac_header(new_skb); | |
756 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
757 | hdr->hdr.l2.pkt_length = new_skb->len; | |
758 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
759 | skb_mac_header(new_skb), ETH_HLEN); | |
760 | } else { | |
761 | /* create a clone with writeable headroom */ | |
762 | new_skb = skb_realloc_headroom(skb, | |
763 | sizeof(struct qeth_hdr)); | |
764 | if (!new_skb) | |
765 | goto tx_drop; | |
766 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 767 | sizeof(struct qeth_hdr)); |
683d718a FB |
768 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
769 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
770 | } | |
4a71df50 FB |
771 | } |
772 | ||
64ef8957 | 773 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 774 | elements_needed); |
64ef8957 FB |
775 | if (!elements) { |
776 | if (data_offset >= 0) | |
777 | kmem_cache_free(qeth_core_header_cache, hdr); | |
778 | goto tx_drop; | |
f61a0d05 | 779 | } |
4a71df50 | 780 | |
51aa165c FB |
781 | if (card->info.type != QETH_CARD_TYPE_IQD) { |
782 | if (qeth_hdr_chk_and_bounce(new_skb, | |
783 | sizeof(struct qeth_hdr_layer2))) | |
784 | goto tx_drop; | |
4a71df50 | 785 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, |
64ef8957 | 786 | elements); |
51aa165c | 787 | } else |
4a71df50 | 788 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, |
64ef8957 | 789 | elements, data_offset, hd_len); |
4a71df50 FB |
790 | if (!rc) { |
791 | card->stats.tx_packets++; | |
792 | card->stats.tx_bytes += tx_bytes; | |
793 | if (new_skb != skb) | |
794 | dev_kfree_skb_any(skb); | |
ec634fe3 | 795 | rc = NETDEV_TX_OK; |
4a71df50 | 796 | } else { |
683d718a FB |
797 | if (data_offset >= 0) |
798 | kmem_cache_free(qeth_core_header_cache, hdr); | |
799 | ||
4a71df50 FB |
800 | if (rc == -EBUSY) { |
801 | if (new_skb != skb) | |
802 | dev_kfree_skb_any(new_skb); | |
803 | return NETDEV_TX_BUSY; | |
804 | } else | |
805 | goto tx_drop; | |
806 | } | |
807 | ||
808 | netif_wake_queue(dev); | |
809 | if (card->options.performance_stats) | |
810 | card->perf_stats.outbound_time += qeth_get_micros() - | |
811 | card->perf_stats.outbound_start_time; | |
812 | return rc; | |
813 | ||
814 | tx_drop: | |
815 | card->stats.tx_dropped++; | |
816 | card->stats.tx_errors++; | |
817 | if ((new_skb != skb) && new_skb) | |
818 | dev_kfree_skb_any(new_skb); | |
819 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 820 | netif_wake_queue(dev); |
4a71df50 FB |
821 | return NETDEV_TX_OK; |
822 | } | |
823 | ||
39423440 | 824 | static int __qeth_l2_open(struct net_device *dev) |
4a71df50 | 825 | { |
509e2562 | 826 | struct qeth_card *card = dev->ml_priv; |
a1c3ed4c | 827 | int rc = 0; |
4a71df50 | 828 | |
847a50fd | 829 | QETH_CARD_TEXT(card, 4, "qethopen"); |
39423440 UB |
830 | if (card->state == CARD_STATE_UP) |
831 | return rc; | |
4a71df50 FB |
832 | if (card->state != CARD_STATE_SOFTSETUP) |
833 | return -ENODEV; | |
834 | ||
835 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
836 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
847a50fd | 837 | QETH_CARD_TEXT(card, 4, "nomacadr"); |
4a71df50 FB |
838 | return -EPERM; |
839 | } | |
840 | card->data.state = CH_STATE_UP; | |
841 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
842 | netif_start_queue(dev); |
843 | ||
a1c3ed4c FB |
844 | if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { |
845 | napi_enable(&card->napi); | |
846 | napi_schedule(&card->napi); | |
847 | } else | |
848 | rc = -EIO; | |
849 | return rc; | |
4a71df50 FB |
850 | } |
851 | ||
39423440 UB |
852 | static int qeth_l2_open(struct net_device *dev) |
853 | { | |
854 | struct qeth_card *card = dev->ml_priv; | |
855 | ||
856 | QETH_CARD_TEXT(card, 5, "qethope_"); | |
857 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { | |
858 | QETH_CARD_TEXT(card, 3, "openREC"); | |
859 | return -ERESTARTSYS; | |
860 | } | |
861 | return __qeth_l2_open(dev); | |
862 | } | |
863 | ||
4a71df50 FB |
864 | static int qeth_l2_stop(struct net_device *dev) |
865 | { | |
509e2562 | 866 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 867 | |
847a50fd | 868 | QETH_CARD_TEXT(card, 4, "qethstop"); |
4a71df50 | 869 | netif_tx_disable(dev); |
a1c3ed4c | 870 | if (card->state == CARD_STATE_UP) { |
4a71df50 | 871 | card->state = CARD_STATE_SOFTSETUP; |
a1c3ed4c FB |
872 | napi_disable(&card->napi); |
873 | } | |
4a71df50 FB |
874 | return 0; |
875 | } | |
876 | ||
877 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
878 | { | |
879 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
880 | ||
881 | INIT_LIST_HEAD(&card->vid_list); | |
882 | INIT_LIST_HEAD(&card->mc_list); | |
883 | card->options.layer2 = 1; | |
1da74b1c | 884 | card->info.hwtrap = 0; |
4a71df50 FB |
885 | return 0; |
886 | } | |
887 | ||
888 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
889 | { | |
890 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
891 | ||
f2148565 | 892 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
893 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
894 | ||
70919e23 | 895 | if (cgdev->state == CCWGROUP_ONLINE) |
4a71df50 | 896 | qeth_l2_set_offline(cgdev); |
4a71df50 FB |
897 | |
898 | if (card->dev) { | |
899 | unregister_netdev(card->dev); | |
900 | card->dev = NULL; | |
901 | } | |
4a71df50 FB |
902 | return; |
903 | } | |
904 | ||
0fc0b732 | 905 | static const struct ethtool_ops qeth_l2_ethtool_ops = { |
4a71df50 | 906 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
907 | .get_strings = qeth_core_get_strings, |
908 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 909 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 910 | .get_drvinfo = qeth_core_get_drvinfo, |
3f9975aa | 911 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
912 | }; |
913 | ||
0fc0b732 | 914 | static const struct ethtool_ops qeth_l2_osn_ops = { |
4a71df50 FB |
915 | .get_strings = qeth_core_get_strings, |
916 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 917 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 FB |
918 | .get_drvinfo = qeth_core_get_drvinfo, |
919 | }; | |
920 | ||
3d58cefd | 921 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
922 | .ndo_open = qeth_l2_open, |
923 | .ndo_stop = qeth_l2_stop, | |
924 | .ndo_get_stats = qeth_get_stats, | |
925 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
926 | .ndo_validate_addr = eth_validate_addr, | |
afc4b13d | 927 | .ndo_set_rx_mode = qeth_l2_set_multicast_list, |
8403b13c FB |
928 | .ndo_do_ioctl = qeth_l2_do_ioctl, |
929 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
930 | .ndo_change_mtu = qeth_change_mtu, | |
931 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
932 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
933 | .ndo_tx_timeout = qeth_tx_timeout, | |
934 | }; | |
935 | ||
4a71df50 FB |
936 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
937 | { | |
938 | switch (card->info.type) { | |
4a71df50 FB |
939 | case QETH_CARD_TYPE_IQD: |
940 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
941 | break; | |
942 | case QETH_CARD_TYPE_OSN: | |
943 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
944 | card->dev->flags |= IFF_NOARP; | |
945 | break; | |
946 | default: | |
947 | card->dev = alloc_etherdev(0); | |
948 | } | |
949 | ||
950 | if (!card->dev) | |
951 | return -ENODEV; | |
952 | ||
509e2562 | 953 | card->dev->ml_priv = card; |
4a71df50 | 954 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 955 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 956 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
957 | if (card->info.type != QETH_CARD_TYPE_OSN) |
958 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
959 | else | |
960 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
961 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
962 | card->info.broadcast_capable = 1; | |
963 | qeth_l2_request_initial_mac(card); | |
964 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
a1c3ed4c | 965 | netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); |
4a71df50 FB |
966 | return register_netdev(card->dev); |
967 | } | |
968 | ||
969 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
970 | { | |
971 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
972 | int rc = 0; | |
973 | enum qeth_card_states recover_flag; | |
974 | ||
975 | BUG_ON(!card); | |
9dc48ccc | 976 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 977 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
978 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
979 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 980 | |
4a71df50 | 981 | recover_flag = card->state; |
4a71df50 FB |
982 | rc = qeth_core_hardsetup_card(card); |
983 | if (rc) { | |
d11ba0c4 | 984 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
aa909224 | 985 | rc = -ENODEV; |
4a71df50 FB |
986 | goto out_remove; |
987 | } | |
988 | ||
aa909224 UB |
989 | if (!card->dev && qeth_l2_setup_netdev(card)) { |
990 | rc = -ENODEV; | |
4a71df50 | 991 | goto out_remove; |
aa909224 | 992 | } |
4a71df50 FB |
993 | |
994 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
995 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
996 | ||
1da74b1c FB |
997 | if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { |
998 | if (card->info.hwtrap && | |
999 | qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) | |
1000 | card->info.hwtrap = 0; | |
1001 | } else | |
1002 | card->info.hwtrap = 0; | |
1003 | ||
4a71df50 | 1004 | card->state = CARD_STATE_HARDSETUP; |
a1c3ed4c | 1005 | memset(&card->rx, 0, sizeof(struct qeth_rx)); |
4a71df50 FB |
1006 | qeth_print_status_message(card); |
1007 | ||
1008 | /* softsetup */ | |
d11ba0c4 | 1009 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
1010 | |
1011 | rc = qeth_send_startlan(card); | |
1012 | if (rc) { | |
d11ba0c4 | 1013 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 1014 | if (rc == 0xe080) { |
74eacdb9 FB |
1015 | dev_warn(&card->gdev->dev, |
1016 | "The LAN is offline\n"); | |
4a71df50 | 1017 | card->lan_online = 0; |
2b6203bb | 1018 | goto contin; |
4a71df50 | 1019 | } |
aa909224 | 1020 | rc = -ENODEV; |
f2148565 | 1021 | goto out_remove; |
4a71df50 FB |
1022 | } else |
1023 | card->lan_online = 1; | |
1024 | ||
2b6203bb | 1025 | contin: |
5113fec0 UB |
1026 | if ((card->info.type == QETH_CARD_TYPE_OSD) || |
1027 | (card->info.type == QETH_CARD_TYPE_OSX)) | |
d64ecc22 EL |
1028 | /* configure isolation level */ |
1029 | qeth_set_access_ctrl_online(card); | |
5113fec0 UB |
1030 | |
1031 | if (card->info.type != QETH_CARD_TYPE_OSN && | |
1032 | card->info.type != QETH_CARD_TYPE_OSM) | |
70919e23 | 1033 | qeth_l2_process_vlans(card); |
4a71df50 FB |
1034 | |
1035 | netif_tx_disable(card->dev); | |
1036 | ||
1037 | rc = qeth_init_qdio_queues(card); | |
1038 | if (rc) { | |
d11ba0c4 | 1039 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 1040 | rc = -ENODEV; |
4a71df50 FB |
1041 | goto out_remove; |
1042 | } | |
1043 | card->state = CARD_STATE_SOFTSETUP; | |
2b6203bb UB |
1044 | if (card->lan_online) |
1045 | netif_carrier_on(card->dev); | |
1046 | else | |
1047 | netif_carrier_off(card->dev); | |
4a71df50 FB |
1048 | |
1049 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1050 | if (recover_flag == CARD_STATE_RECOVER) { | |
1051 | if (recovery_mode && | |
1052 | card->info.type != QETH_CARD_TYPE_OSN) { | |
39423440 | 1053 | __qeth_l2_open(card->dev); |
4a71df50 FB |
1054 | } else { |
1055 | rtnl_lock(); | |
1056 | dev_open(card->dev); | |
1057 | rtnl_unlock(); | |
1058 | } | |
1059 | /* this also sets saved unicast addresses */ | |
1060 | qeth_l2_set_multicast_list(card->dev); | |
1061 | } | |
1062 | /* let user_space know that device is online */ | |
1063 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1064 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1065 | mutex_unlock(&card->discipline_mutex); |
4a71df50 | 1066 | return 0; |
aa909224 | 1067 | |
4a71df50 | 1068 | out_remove: |
4a71df50 FB |
1069 | qeth_l2_stop_card(card, 0); |
1070 | ccw_device_set_offline(CARD_DDEV(card)); | |
1071 | ccw_device_set_offline(CARD_WDEV(card)); | |
1072 | ccw_device_set_offline(CARD_RDEV(card)); | |
1073 | if (recover_flag == CARD_STATE_RECOVER) | |
1074 | card->state = CARD_STATE_RECOVER; | |
1075 | else | |
1076 | card->state = CARD_STATE_DOWN; | |
c4949f07 | 1077 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1078 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 1079 | return rc; |
4a71df50 FB |
1080 | } |
1081 | ||
1082 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1083 | { | |
1084 | return __qeth_l2_set_online(gdev, 0); | |
1085 | } | |
1086 | ||
1087 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1088 | int recovery_mode) | |
1089 | { | |
1090 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1091 | int rc = 0, rc2 = 0, rc3 = 0; | |
1092 | enum qeth_card_states recover_flag; | |
1093 | ||
9dc48ccc | 1094 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 1095 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
1096 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1097 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1098 | |
1099 | if (card->dev && netif_carrier_ok(card->dev)) | |
1100 | netif_carrier_off(card->dev); | |
1101 | recover_flag = card->state; | |
1da74b1c FB |
1102 | if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { |
1103 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
1104 | card->info.hwtrap = 1; | |
1105 | } | |
0f5623c9 | 1106 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1107 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1108 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1109 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1110 | if (!rc) | |
1111 | rc = (rc2) ? rc2 : rc3; | |
1112 | if (rc) | |
d11ba0c4 | 1113 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1114 | if (recover_flag == CARD_STATE_UP) |
1115 | card->state = CARD_STATE_RECOVER; | |
1116 | /* let user_space know that device is offline */ | |
1117 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1118 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1119 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
1120 | return 0; |
1121 | } | |
1122 | ||
1123 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1124 | { | |
1125 | return __qeth_l2_set_offline(cgdev, 0); | |
1126 | } | |
1127 | ||
1128 | static int qeth_l2_recover(void *ptr) | |
1129 | { | |
1130 | struct qeth_card *card; | |
1131 | int rc = 0; | |
1132 | ||
1133 | card = (struct qeth_card *) ptr; | |
847a50fd | 1134 | QETH_CARD_TEXT(card, 2, "recover1"); |
4a71df50 FB |
1135 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1136 | return 0; | |
847a50fd | 1137 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
1138 | dev_warn(&card->gdev->dev, |
1139 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1140 | __qeth_l2_set_offline(card->gdev, 1); |
1141 | rc = __qeth_l2_set_online(card->gdev, 1); | |
4a71df50 | 1142 | if (!rc) |
74eacdb9 FB |
1143 | dev_info(&card->gdev->dev, |
1144 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1145 | else { |
869da90b UB |
1146 | rtnl_lock(); |
1147 | dev_close(card->dev); | |
1148 | rtnl_unlock(); | |
74eacdb9 FB |
1149 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1150 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1151 | } |
a1c3ed4c FB |
1152 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
1153 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
1154 | return 0; |
1155 | } | |
1156 | ||
1157 | static int __init qeth_l2_init(void) | |
1158 | { | |
74eacdb9 | 1159 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1160 | return 0; |
1161 | } | |
1162 | ||
1163 | static void __exit qeth_l2_exit(void) | |
1164 | { | |
74eacdb9 | 1165 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1166 | } |
1167 | ||
1168 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1169 | { | |
1170 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
f78ac2bb | 1171 | qeth_set_allowed_threads(card, 0, 1); |
1da74b1c FB |
1172 | if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) |
1173 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
4a71df50 FB |
1174 | qeth_qdio_clear_card(card, 0); |
1175 | qeth_clear_qdio_buffers(card); | |
1176 | } | |
1177 | ||
bbcfcdc8 FB |
1178 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
1179 | { | |
1180 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1181 | ||
1182 | if (card->dev) | |
1183 | netif_device_detach(card->dev); | |
1184 | qeth_set_allowed_threads(card, 0, 1); | |
1185 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
1186 | if (gdev->state == CCWGROUP_OFFLINE) | |
1187 | return 0; | |
1188 | if (card->state == CARD_STATE_UP) { | |
1da74b1c FB |
1189 | if (card->info.hwtrap) |
1190 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
bbcfcdc8 FB |
1191 | __qeth_l2_set_offline(card->gdev, 1); |
1192 | } else | |
1193 | __qeth_l2_set_offline(card->gdev, 0); | |
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
1198 | { | |
1199 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1200 | int rc = 0; | |
1201 | ||
1202 | if (gdev->state == CCWGROUP_OFFLINE) | |
1203 | goto out; | |
1204 | ||
1205 | if (card->state == CARD_STATE_RECOVER) { | |
1206 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1207 | if (rc) { | |
869da90b UB |
1208 | rtnl_lock(); |
1209 | dev_close(card->dev); | |
1210 | rtnl_unlock(); | |
bbcfcdc8 FB |
1211 | } |
1212 | } else | |
1213 | rc = __qeth_l2_set_online(card->gdev, 0); | |
1214 | out: | |
1215 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1216 | if (card->dev) | |
1217 | netif_device_attach(card->dev); | |
1218 | if (rc) | |
1219 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1220 | "failed to recover an error on the device\n"); | |
1221 | return rc; | |
1222 | } | |
1223 | ||
c041f2d4 SO |
1224 | struct qeth_discipline qeth_l2_discipline = { |
1225 | .start_poll = qeth_qdio_start_poll, | |
1226 | .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, | |
1227 | .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, | |
1228 | .recover = qeth_l2_recover, | |
1229 | .setup = qeth_l2_probe_device, | |
4a71df50 FB |
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 | 1237 | }; |
c041f2d4 | 1238 | EXPORT_SYMBOL_GPL(qeth_l2_discipline); |
4a71df50 FB |
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"); |