Commit | Line | Data |
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4a71df50 FB |
1 | /* |
2 | * drivers/s390/net/qeth_l2_main.c | |
3 | * | |
bbcfcdc8 | 4 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
6 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
7 | * Thomas Spatzier <tspat@de.ibm.com>, | |
8 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
9 | */ | |
10 | ||
74eacdb9 FB |
11 | #define KMSG_COMPONENT "qeth" |
12 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
13 | ||
4a71df50 FB |
14 | #include <linux/module.h> |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/kernel.h> | |
5a0e3ad6 | 19 | #include <linux/slab.h> |
4a71df50 FB |
20 | #include <linux/etherdevice.h> |
21 | #include <linux/mii.h> | |
22 | #include <linux/ip.h> | |
ccffad25 | 23 | #include <linux/list.h> |
4a71df50 | 24 | |
4a71df50 | 25 | #include "qeth_core.h" |
4a71df50 | 26 | |
4a71df50 FB |
27 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
28 | static int qeth_l2_stop(struct net_device *); | |
29 | static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); | |
30 | static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, | |
31 | enum qeth_ipa_cmds, | |
32 | int (*reply_cb) (struct qeth_card *, | |
33 | struct qeth_reply*, | |
34 | unsigned long)); | |
35 | static void qeth_l2_set_multicast_list(struct net_device *); | |
36 | static int qeth_l2_recover(void *); | |
37 | ||
38 | static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
39 | { | |
509e2562 | 40 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
41 | struct mii_ioctl_data *mii_data; |
42 | int rc = 0; | |
43 | ||
44 | if (!card) | |
45 | return -ENODEV; | |
46 | ||
47 | if ((card->state != CARD_STATE_UP) && | |
48 | (card->state != CARD_STATE_SOFTSETUP)) | |
49 | return -ENODEV; | |
50 | ||
51 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
52 | return -EPERM; | |
53 | ||
54 | switch (cmd) { | |
55 | case SIOC_QETH_ADP_SET_SNMP_CONTROL: | |
56 | rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); | |
57 | break; | |
58 | case SIOC_QETH_GET_CARD_TYPE: | |
5113fec0 UB |
59 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
60 | card->info.type == QETH_CARD_TYPE_OSM || | |
61 | card->info.type == QETH_CARD_TYPE_OSX) && | |
4a71df50 FB |
62 | !card->info.guestlan) |
63 | return 1; | |
64 | return 0; | |
65 | break; | |
66 | case SIOCGMIIPHY: | |
67 | mii_data = if_mii(rq); | |
68 | mii_data->phy_id = 0; | |
69 | break; | |
70 | case SIOCGMIIREG: | |
71 | mii_data = if_mii(rq); | |
72 | if (mii_data->phy_id != 0) | |
73 | rc = -EINVAL; | |
74 | else | |
75 | mii_data->val_out = qeth_mdio_read(dev, | |
76 | mii_data->phy_id, mii_data->reg_num); | |
77 | break; | |
78 | default: | |
79 | rc = -EOPNOTSUPP; | |
80 | } | |
81 | if (rc) | |
847a50fd | 82 | QETH_CARD_TEXT_(card, 2, "ioce%d", rc); |
4a71df50 FB |
83 | return rc; |
84 | } | |
85 | ||
86 | static int qeth_l2_verify_dev(struct net_device *dev) | |
87 | { | |
88 | struct qeth_card *card; | |
89 | unsigned long flags; | |
90 | int rc = 0; | |
91 | ||
92 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
93 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
94 | if (card->dev == dev) { | |
95 | rc = QETH_REAL_CARD; | |
96 | break; | |
97 | } | |
98 | } | |
99 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
100 | ||
101 | return rc; | |
102 | } | |
103 | ||
104 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) | |
105 | { | |
106 | struct qeth_card *card; | |
107 | struct net_device *ndev; | |
f06f6f32 | 108 | __u16 temp_dev_no; |
4a71df50 | 109 | unsigned long flags; |
f06f6f32 | 110 | struct ccw_dev_id read_devid; |
4a71df50 FB |
111 | |
112 | ndev = NULL; | |
113 | memcpy(&temp_dev_no, read_dev_no, 2); | |
114 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
115 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
116 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
117 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
118 | ndev = card->dev; |
119 | break; | |
120 | } | |
121 | } | |
122 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
123 | return ndev; | |
124 | } | |
125 | ||
126 | static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, | |
127 | struct qeth_reply *reply, | |
128 | unsigned long data) | |
129 | { | |
130 | struct qeth_ipa_cmd *cmd; | |
131 | __u8 *mac; | |
132 | ||
847a50fd | 133 | QETH_CARD_TEXT(card, 2, "L2Sgmacb"); |
4a71df50 FB |
134 | cmd = (struct qeth_ipa_cmd *) data; |
135 | mac = &cmd->data.setdelmac.mac[0]; | |
136 | /* MAC already registered, needed in couple/uncouple case */ | |
0666eb06 | 137 | if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { |
7c510e4b JB |
138 | QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", |
139 | mac, QETH_CARD_IFNAME(card)); | |
4a71df50 FB |
140 | cmd->hdr.return_code = 0; |
141 | } | |
142 | if (cmd->hdr.return_code) | |
7c510e4b JB |
143 | QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", |
144 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
145 | return 0; |
146 | } | |
147 | ||
148 | static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) | |
149 | { | |
847a50fd | 150 | QETH_CARD_TEXT(card, 2, "L2Sgmac"); |
4a71df50 FB |
151 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, |
152 | qeth_l2_send_setgroupmac_cb); | |
153 | } | |
154 | ||
155 | static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, | |
156 | struct qeth_reply *reply, | |
157 | unsigned long data) | |
158 | { | |
159 | struct qeth_ipa_cmd *cmd; | |
160 | __u8 *mac; | |
161 | ||
847a50fd | 162 | QETH_CARD_TEXT(card, 2, "L2Dgmacb"); |
4a71df50 FB |
163 | cmd = (struct qeth_ipa_cmd *) data; |
164 | mac = &cmd->data.setdelmac.mac[0]; | |
165 | if (cmd->hdr.return_code) | |
7c510e4b JB |
166 | QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", |
167 | mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
4a71df50 FB |
168 | return 0; |
169 | } | |
170 | ||
171 | static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) | |
172 | { | |
847a50fd | 173 | QETH_CARD_TEXT(card, 2, "L2Dgmac"); |
4a71df50 FB |
174 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, |
175 | qeth_l2_send_delgroupmac_cb); | |
176 | } | |
177 | ||
7db2266a | 178 | static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) |
4a71df50 FB |
179 | { |
180 | struct qeth_mc_mac *mc; | |
7db2266a | 181 | int rc; |
4a71df50 FB |
182 | |
183 | mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); | |
184 | ||
14cc21b6 | 185 | if (!mc) |
4a71df50 | 186 | return; |
4a71df50 FB |
187 | |
188 | memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); | |
189 | mc->mc_addrlen = OSA_ADDR_LEN; | |
7db2266a FB |
190 | mc->is_vmac = vmac; |
191 | ||
192 | if (vmac) { | |
193 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, | |
194 | NULL); | |
195 | } else { | |
196 | rc = qeth_l2_send_setgroupmac(card, mac); | |
197 | } | |
4a71df50 | 198 | |
7db2266a | 199 | if (!rc) |
4a71df50 FB |
200 | list_add_tail(&mc->list, &card->mc_list); |
201 | else | |
202 | kfree(mc); | |
203 | } | |
204 | ||
70919e23 | 205 | static void qeth_l2_del_all_mc(struct qeth_card *card, int del) |
4a71df50 FB |
206 | { |
207 | struct qeth_mc_mac *mc, *tmp; | |
208 | ||
209 | spin_lock_bh(&card->mclock); | |
210 | list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { | |
70919e23 UB |
211 | if (del) { |
212 | if (mc->is_vmac) | |
213 | qeth_l2_send_setdelmac(card, mc->mc_addr, | |
7db2266a | 214 | IPA_CMD_DELVMAC, NULL); |
70919e23 UB |
215 | else |
216 | qeth_l2_send_delgroupmac(card, mc->mc_addr); | |
217 | } | |
4a71df50 FB |
218 | list_del(&mc->list); |
219 | kfree(mc); | |
220 | } | |
221 | spin_unlock_bh(&card->mclock); | |
222 | } | |
223 | ||
ce73e10e KDW |
224 | static inline int qeth_l2_get_cast_type(struct qeth_card *card, |
225 | struct sk_buff *skb) | |
4a71df50 | 226 | { |
ce73e10e KDW |
227 | if (card->info.type == QETH_CARD_TYPE_OSN) |
228 | return RTN_UNSPEC; | |
229 | if (is_broadcast_ether_addr(skb->data)) | |
230 | return RTN_BROADCAST; | |
231 | if (is_multicast_ether_addr(skb->data)) | |
232 | return RTN_MULTICAST; | |
233 | return RTN_UNSPEC; | |
4a71df50 FB |
234 | } |
235 | ||
236 | static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, | |
237 | struct sk_buff *skb, int ipv, int cast_type) | |
238 | { | |
683d718a | 239 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
240 | |
241 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
242 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
243 | ||
244 | /* set byte byte 3 to casting flags */ | |
245 | if (cast_type == RTN_MULTICAST) | |
246 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
247 | else if (cast_type == RTN_BROADCAST) | |
248 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
249 | else | |
ce73e10e | 250 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
4a71df50 FB |
251 | |
252 | hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; | |
253 | /* VSWITCH relies on the VLAN | |
254 | * information to be present in | |
255 | * the QDIO header */ | |
256 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
257 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
258 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
259 | } | |
260 | } | |
261 | ||
262 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, | |
263 | struct qeth_reply *reply, unsigned long data) | |
264 | { | |
265 | struct qeth_ipa_cmd *cmd; | |
266 | ||
847a50fd | 267 | QETH_CARD_TEXT(card, 2, "L2sdvcb"); |
4a71df50 FB |
268 | cmd = (struct qeth_ipa_cmd *) data; |
269 | if (cmd->hdr.return_code) { | |
14cc21b6 | 270 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " |
4a71df50 FB |
271 | "Continuing\n", cmd->data.setdelvlan.vlan_id, |
272 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
847a50fd CO |
273 | QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); |
274 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
275 | } |
276 | return 0; | |
277 | } | |
278 | ||
279 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
280 | enum qeth_ipa_cmds ipacmd) | |
281 | { | |
282 | struct qeth_ipa_cmd *cmd; | |
283 | struct qeth_cmd_buffer *iob; | |
284 | ||
847a50fd | 285 | QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); |
4a71df50 FB |
286 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
287 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
288 | cmd->data.setdelvlan.vlan_id = i; | |
289 | return qeth_send_ipa_cmd(card, iob, | |
290 | qeth_l2_send_setdelvlan_cb, NULL); | |
291 | } | |
292 | ||
70919e23 | 293 | static void qeth_l2_process_vlans(struct qeth_card *card) |
4a71df50 FB |
294 | { |
295 | struct qeth_vlan_vid *id; | |
847a50fd | 296 | QETH_CARD_TEXT(card, 3, "L2prcvln"); |
4a71df50 FB |
297 | spin_lock_bh(&card->vlanlock); |
298 | list_for_each_entry(id, &card->vid_list, list) { | |
70919e23 | 299 | qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); |
4a71df50 FB |
300 | } |
301 | spin_unlock_bh(&card->vlanlock); | |
302 | } | |
303 | ||
304 | static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
305 | { | |
509e2562 | 306 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
307 | struct qeth_vlan_vid *id; |
308 | ||
847a50fd | 309 | QETH_CARD_TEXT_(card, 4, "aid:%d", vid); |
10651db7 UB |
310 | if (!vid) |
311 | return; | |
5113fec0 | 312 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 313 | QETH_CARD_TEXT(card, 3, "aidOSM"); |
5113fec0 UB |
314 | return; |
315 | } | |
8e98ac48 | 316 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 317 | QETH_CARD_TEXT(card, 3, "aidREC"); |
8e98ac48 UB |
318 | return; |
319 | } | |
4a71df50 FB |
320 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
321 | if (id) { | |
322 | id->vid = vid; | |
323 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); | |
324 | spin_lock_bh(&card->vlanlock); | |
325 | list_add_tail(&id->list, &card->vid_list); | |
326 | spin_unlock_bh(&card->vlanlock); | |
4a71df50 FB |
327 | } |
328 | } | |
329 | ||
330 | static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
331 | { | |
332 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 333 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 334 | |
847a50fd | 335 | QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
5113fec0 | 336 | if (card->info.type == QETH_CARD_TYPE_OSM) { |
847a50fd | 337 | QETH_CARD_TEXT(card, 3, "kidOSM"); |
5113fec0 UB |
338 | return; |
339 | } | |
8e98ac48 | 340 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 341 | QETH_CARD_TEXT(card, 3, "kidREC"); |
8e98ac48 UB |
342 | return; |
343 | } | |
4a71df50 FB |
344 | spin_lock_bh(&card->vlanlock); |
345 | list_for_each_entry(id, &card->vid_list, list) { | |
346 | if (id->vid == vid) { | |
347 | list_del(&id->list); | |
348 | tmpid = id; | |
349 | break; | |
350 | } | |
351 | } | |
352 | spin_unlock_bh(&card->vlanlock); | |
353 | if (tmpid) { | |
354 | qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); | |
355 | kfree(tmpid); | |
356 | } | |
357 | qeth_l2_set_multicast_list(card->dev); | |
358 | } | |
359 | ||
360 | static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) | |
361 | { | |
362 | int rc = 0; | |
363 | ||
d11ba0c4 PT |
364 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
365 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
366 | |
367 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
368 | if (card->read.state == CH_STATE_UP && |
369 | card->write.state == CH_STATE_UP && | |
370 | (card->state == CARD_STATE_UP)) { | |
371 | if (recovery_mode && | |
372 | card->info.type != QETH_CARD_TYPE_OSN) { | |
373 | qeth_l2_stop(card->dev); | |
374 | } else { | |
375 | rtnl_lock(); | |
376 | dev_close(card->dev); | |
377 | rtnl_unlock(); | |
378 | } | |
70919e23 | 379 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
4a71df50 FB |
380 | card->state = CARD_STATE_SOFTSETUP; |
381 | } | |
382 | if (card->state == CARD_STATE_SOFTSETUP) { | |
70919e23 | 383 | qeth_l2_del_all_mc(card, 0); |
4a71df50 FB |
384 | qeth_clear_ipacmd_list(card); |
385 | card->state = CARD_STATE_HARDSETUP; | |
386 | } | |
387 | if (card->state == CARD_STATE_HARDSETUP) { | |
388 | qeth_qdio_clear_card(card, 0); | |
389 | qeth_clear_qdio_buffers(card); | |
390 | qeth_clear_working_pool_list(card); | |
391 | card->state = CARD_STATE_DOWN; | |
392 | } | |
393 | if (card->state == CARD_STATE_DOWN) { | |
394 | qeth_clear_cmd_buffers(&card->read); | |
395 | qeth_clear_cmd_buffers(&card->write); | |
396 | } | |
4a71df50 FB |
397 | return rc; |
398 | } | |
399 | ||
a1c3ed4c FB |
400 | static int qeth_l2_process_inbound_buffer(struct qeth_card *card, |
401 | int budget, int *done) | |
4a71df50 | 402 | { |
a1c3ed4c | 403 | int work_done = 0; |
4a71df50 FB |
404 | struct sk_buff *skb; |
405 | struct qeth_hdr *hdr; | |
4a71df50 FB |
406 | unsigned int len; |
407 | ||
a1c3ed4c FB |
408 | *done = 0; |
409 | BUG_ON(!budget); | |
410 | while (budget) { | |
411 | skb = qeth_core_get_next_skb(card, | |
b3332930 | 412 | &card->qdio.in_q->bufs[card->rx.b_index], |
a1c3ed4c FB |
413 | &card->rx.b_element, &card->rx.e_offset, &hdr); |
414 | if (!skb) { | |
415 | *done = 1; | |
416 | break; | |
4a71df50 | 417 | } |
a1c3ed4c | 418 | skb->dev = card->dev; |
4a71df50 FB |
419 | switch (hdr->hdr.l2.id) { |
420 | case QETH_HEADER_TYPE_LAYER2: | |
421 | skb->pkt_type = PACKET_HOST; | |
422 | skb->protocol = eth_type_trans(skb, skb->dev); | |
c5e631a8 | 423 | skb->ip_summed = CHECKSUM_NONE; |
12883725 UB |
424 | if (skb->protocol == htons(ETH_P_802_2)) |
425 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 | 426 | len = skb->len; |
a1c3ed4c | 427 | netif_receive_skb(skb); |
4a71df50 FB |
428 | break; |
429 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
430 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
431 | skb_push(skb, sizeof(struct qeth_hdr)); | |
432 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 433 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
434 | len = skb->len; |
435 | card->osn_info.data_cb(skb); | |
436 | break; | |
437 | } | |
438 | /* else unknown */ | |
4a71df50 FB |
439 | default: |
440 | dev_kfree_skb_any(skb); | |
847a50fd | 441 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
d11ba0c4 | 442 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
443 | continue; |
444 | } | |
a1c3ed4c FB |
445 | work_done++; |
446 | budget--; | |
4a71df50 FB |
447 | card->stats.rx_packets++; |
448 | card->stats.rx_bytes += len; | |
449 | } | |
a1c3ed4c FB |
450 | return work_done; |
451 | } | |
452 | ||
453 | static int qeth_l2_poll(struct napi_struct *napi, int budget) | |
454 | { | |
455 | struct qeth_card *card = container_of(napi, struct qeth_card, napi); | |
456 | int work_done = 0; | |
457 | struct qeth_qdio_buffer *buffer; | |
458 | int done; | |
459 | int new_budget = budget; | |
460 | ||
461 | if (card->options.performance_stats) { | |
462 | card->perf_stats.inbound_cnt++; | |
463 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
464 | } | |
465 | ||
466 | while (1) { | |
467 | if (!card->rx.b_count) { | |
468 | card->rx.qdio_err = 0; | |
469 | card->rx.b_count = qdio_get_next_buffers( | |
470 | card->data.ccwdev, 0, &card->rx.b_index, | |
471 | &card->rx.qdio_err); | |
472 | if (card->rx.b_count <= 0) { | |
473 | card->rx.b_count = 0; | |
474 | break; | |
475 | } | |
476 | card->rx.b_element = | |
477 | &card->qdio.in_q->bufs[card->rx.b_index] | |
478 | .buffer->element[0]; | |
479 | card->rx.e_offset = 0; | |
480 | } | |
481 | ||
482 | while (card->rx.b_count) { | |
483 | buffer = &card->qdio.in_q->bufs[card->rx.b_index]; | |
484 | if (!(card->rx.qdio_err && | |
485 | qeth_check_qdio_errors(card, buffer->buffer, | |
486 | card->rx.qdio_err, "qinerr"))) | |
487 | work_done += qeth_l2_process_inbound_buffer( | |
488 | card, new_budget, &done); | |
489 | else | |
490 | done = 1; | |
491 | ||
492 | if (done) { | |
493 | if (card->options.performance_stats) | |
494 | card->perf_stats.bufs_rec++; | |
495 | qeth_put_buffer_pool_entry(card, | |
496 | buffer->pool_entry); | |
497 | qeth_queue_input_buffer(card, card->rx.b_index); | |
498 | card->rx.b_count--; | |
499 | if (card->rx.b_count) { | |
500 | card->rx.b_index = | |
501 | (card->rx.b_index + 1) % | |
502 | QDIO_MAX_BUFFERS_PER_Q; | |
503 | card->rx.b_element = | |
504 | &card->qdio.in_q | |
505 | ->bufs[card->rx.b_index] | |
506 | .buffer->element[0]; | |
507 | card->rx.e_offset = 0; | |
508 | } | |
509 | } | |
510 | ||
511 | if (work_done >= budget) | |
512 | goto out; | |
513 | else | |
514 | new_budget = budget - work_done; | |
515 | } | |
516 | } | |
517 | ||
518 | napi_complete(napi); | |
519 | if (qdio_start_irq(card->data.ccwdev, 0)) | |
520 | napi_schedule(&card->napi); | |
521 | out: | |
522 | if (card->options.performance_stats) | |
523 | card->perf_stats.inbound_time += qeth_get_micros() - | |
524 | card->perf_stats.inbound_start_time; | |
525 | return work_done; | |
4a71df50 FB |
526 | } |
527 | ||
528 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
529 | enum qeth_ipa_cmds ipacmd, | |
530 | int (*reply_cb) (struct qeth_card *, | |
531 | struct qeth_reply*, | |
532 | unsigned long)) | |
533 | { | |
534 | struct qeth_ipa_cmd *cmd; | |
535 | struct qeth_cmd_buffer *iob; | |
536 | ||
847a50fd | 537 | QETH_CARD_TEXT(card, 2, "L2sdmac"); |
4a71df50 FB |
538 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
539 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
540 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
541 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
542 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
543 | } | |
544 | ||
545 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
546 | struct qeth_reply *reply, | |
547 | unsigned long data) | |
548 | { | |
549 | struct qeth_ipa_cmd *cmd; | |
550 | ||
847a50fd | 551 | QETH_CARD_TEXT(card, 2, "L2Smaccb"); |
4a71df50 FB |
552 | cmd = (struct qeth_ipa_cmd *) data; |
553 | if (cmd->hdr.return_code) { | |
847a50fd | 554 | QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 | 555 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
0666eb06 UB |
556 | switch (cmd->hdr.return_code) { |
557 | case IPA_RC_L2_DUP_MAC: | |
558 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
559 | dev_warn(&card->gdev->dev, | |
d998ab0b | 560 | "MAC address %pM already exists\n", |
221c17fe | 561 | cmd->data.setdelmac.mac); |
0666eb06 UB |
562 | break; |
563 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
564 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
565 | dev_warn(&card->gdev->dev, | |
d998ab0b | 566 | "MAC address %pM is not authorized\n", |
221c17fe | 567 | cmd->data.setdelmac.mac); |
0666eb06 UB |
568 | break; |
569 | default: | |
570 | break; | |
571 | } | |
4a71df50 FB |
572 | cmd->hdr.return_code = -EIO; |
573 | } else { | |
574 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
575 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
576 | OSA_ADDR_LEN); | |
74eacdb9 | 577 | dev_info(&card->gdev->dev, |
d998ab0b HS |
578 | "MAC address %pM successfully registered on device %s\n", |
579 | card->dev->dev_addr, card->dev->name); | |
4a71df50 FB |
580 | } |
581 | return 0; | |
582 | } | |
583 | ||
584 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
585 | { | |
847a50fd | 586 | QETH_CARD_TEXT(card, 2, "L2Setmac"); |
4a71df50 FB |
587 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
588 | qeth_l2_send_setmac_cb); | |
589 | } | |
590 | ||
591 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
592 | struct qeth_reply *reply, | |
593 | unsigned long data) | |
594 | { | |
595 | struct qeth_ipa_cmd *cmd; | |
596 | ||
847a50fd | 597 | QETH_CARD_TEXT(card, 2, "L2Dmaccb"); |
4a71df50 FB |
598 | cmd = (struct qeth_ipa_cmd *) data; |
599 | if (cmd->hdr.return_code) { | |
847a50fd | 600 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
601 | cmd->hdr.return_code = -EIO; |
602 | return 0; | |
603 | } | |
604 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
609 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
610 | { | |
847a50fd | 611 | QETH_CARD_TEXT(card, 2, "L2Delmac"); |
4a71df50 FB |
612 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
613 | return 0; | |
614 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
615 | qeth_l2_send_delmac_cb); | |
616 | } | |
617 | ||
618 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
619 | { | |
620 | int rc = 0; | |
621 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
622 | ||
d11ba0c4 PT |
623 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
624 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
625 | |
626 | rc = qeth_query_setadapterparms(card); | |
627 | if (rc) { | |
14cc21b6 FB |
628 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
629 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
630 | } |
631 | ||
5113fec0 UB |
632 | if (card->info.type == QETH_CARD_TYPE_IQD || |
633 | card->info.type == QETH_CARD_TYPE_OSM || | |
634 | card->info.type == QETH_CARD_TYPE_OSX || | |
635 | card->info.guestlan) { | |
4a71df50 FB |
636 | rc = qeth_setadpparms_change_macaddr(card); |
637 | if (rc) { | |
14cc21b6 FB |
638 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
639 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 640 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
641 | return rc; |
642 | } | |
d11ba0c4 | 643 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
644 | } else { |
645 | random_ether_addr(card->dev->dev_addr); | |
646 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
647 | } | |
648 | return 0; | |
649 | } | |
650 | ||
651 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
652 | { | |
653 | struct sockaddr *addr = p; | |
509e2562 | 654 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
655 | int rc = 0; |
656 | ||
847a50fd | 657 | QETH_CARD_TEXT(card, 3, "setmac"); |
4a71df50 FB |
658 | |
659 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
847a50fd | 660 | QETH_CARD_TEXT(card, 3, "setmcINV"); |
4a71df50 FB |
661 | return -EOPNOTSUPP; |
662 | } | |
663 | ||
5113fec0 UB |
664 | if (card->info.type == QETH_CARD_TYPE_OSN || |
665 | card->info.type == QETH_CARD_TYPE_OSM || | |
666 | card->info.type == QETH_CARD_TYPE_OSX) { | |
847a50fd | 667 | QETH_CARD_TEXT(card, 3, "setmcTYP"); |
4a71df50 FB |
668 | return -EOPNOTSUPP; |
669 | } | |
847a50fd | 670 | QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); |
8e98ac48 | 671 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 672 | QETH_CARD_TEXT(card, 3, "setmcREC"); |
8e98ac48 UB |
673 | return -ERESTARTSYS; |
674 | } | |
4a71df50 FB |
675 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
676 | if (!rc) | |
677 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
678 | return rc; | |
679 | } | |
680 | ||
681 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
682 | { | |
509e2562 | 683 | struct qeth_card *card = dev->ml_priv; |
ccffad25 | 684 | struct netdev_hw_addr *ha; |
4a71df50 FB |
685 | |
686 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
687 | return ; | |
688 | ||
847a50fd | 689 | QETH_CARD_TEXT(card, 3, "setmulti"); |
8e98ac48 UB |
690 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
691 | (card->state != CARD_STATE_UP)) | |
692 | return; | |
70919e23 | 693 | qeth_l2_del_all_mc(card, 1); |
4a71df50 | 694 | spin_lock_bh(&card->mclock); |
22bedad3 JP |
695 | netdev_for_each_mc_addr(ha, dev) |
696 | qeth_l2_add_mc(card, ha->addr, 0); | |
7db2266a | 697 | |
32e7bfc4 | 698 | netdev_for_each_uc_addr(ha, dev) |
ccffad25 | 699 | qeth_l2_add_mc(card, ha->addr, 1); |
7db2266a | 700 | |
4a71df50 FB |
701 | spin_unlock_bh(&card->mclock); |
702 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
703 | return; | |
704 | qeth_setadp_promisc_mode(card); | |
705 | } | |
706 | ||
707 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
708 | { | |
709 | int rc; | |
710 | struct qeth_hdr *hdr = NULL; | |
711 | int elements = 0; | |
509e2562 | 712 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
713 | struct sk_buff *new_skb = skb; |
714 | int ipv = qeth_get_ip_version(skb); | |
ce73e10e | 715 | int cast_type = qeth_l2_get_cast_type(card, skb); |
4a71df50 FB |
716 | struct qeth_qdio_out_q *queue = card->qdio.out_qs |
717 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
718 | int tx_bytes = skb->len; | |
683d718a FB |
719 | int data_offset = -1; |
720 | int elements_needed = 0; | |
721 | int hd_len = 0; | |
4a71df50 | 722 | |
4a71df50 FB |
723 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
724 | card->stats.tx_carrier_errors++; | |
725 | goto tx_drop; | |
726 | } | |
727 | ||
728 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
729 | (skb->protocol == htons(ETH_P_IPV6))) | |
730 | goto tx_drop; | |
731 | ||
732 | if (card->options.performance_stats) { | |
733 | card->perf_stats.outbound_cnt++; | |
734 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
735 | } | |
736 | netif_stop_queue(dev); | |
737 | ||
4a71df50 FB |
738 | if (card->info.type == QETH_CARD_TYPE_OSN) |
739 | hdr = (struct qeth_hdr *)skb->data; | |
740 | else { | |
64ef8957 | 741 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
742 | new_skb = skb; |
743 | data_offset = ETH_HLEN; | |
744 | hd_len = ETH_HLEN; | |
745 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
746 | GFP_ATOMIC); | |
747 | if (!hdr) | |
748 | goto tx_drop; | |
749 | elements_needed++; | |
750 | skb_reset_mac_header(new_skb); | |
751 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
752 | hdr->hdr.l2.pkt_length = new_skb->len; | |
753 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
754 | skb_mac_header(new_skb), ETH_HLEN); | |
755 | } else { | |
756 | /* create a clone with writeable headroom */ | |
757 | new_skb = skb_realloc_headroom(skb, | |
758 | sizeof(struct qeth_hdr)); | |
759 | if (!new_skb) | |
760 | goto tx_drop; | |
761 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 762 | sizeof(struct qeth_hdr)); |
683d718a FB |
763 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
764 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
765 | } | |
4a71df50 FB |
766 | } |
767 | ||
64ef8957 | 768 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 769 | elements_needed); |
64ef8957 FB |
770 | if (!elements) { |
771 | if (data_offset >= 0) | |
772 | kmem_cache_free(qeth_core_header_cache, hdr); | |
773 | goto tx_drop; | |
f61a0d05 | 774 | } |
4a71df50 | 775 | |
51aa165c FB |
776 | if (card->info.type != QETH_CARD_TYPE_IQD) { |
777 | if (qeth_hdr_chk_and_bounce(new_skb, | |
778 | sizeof(struct qeth_hdr_layer2))) | |
779 | goto tx_drop; | |
4a71df50 | 780 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, |
64ef8957 | 781 | elements); |
51aa165c | 782 | } else |
4a71df50 | 783 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, |
64ef8957 | 784 | elements, data_offset, hd_len); |
4a71df50 FB |
785 | if (!rc) { |
786 | card->stats.tx_packets++; | |
787 | card->stats.tx_bytes += tx_bytes; | |
788 | if (new_skb != skb) | |
789 | dev_kfree_skb_any(skb); | |
ec634fe3 | 790 | rc = NETDEV_TX_OK; |
4a71df50 | 791 | } else { |
683d718a FB |
792 | if (data_offset >= 0) |
793 | kmem_cache_free(qeth_core_header_cache, hdr); | |
794 | ||
4a71df50 FB |
795 | if (rc == -EBUSY) { |
796 | if (new_skb != skb) | |
797 | dev_kfree_skb_any(new_skb); | |
798 | return NETDEV_TX_BUSY; | |
799 | } else | |
800 | goto tx_drop; | |
801 | } | |
802 | ||
803 | netif_wake_queue(dev); | |
804 | if (card->options.performance_stats) | |
805 | card->perf_stats.outbound_time += qeth_get_micros() - | |
806 | card->perf_stats.outbound_start_time; | |
807 | return rc; | |
808 | ||
809 | tx_drop: | |
810 | card->stats.tx_dropped++; | |
811 | card->stats.tx_errors++; | |
812 | if ((new_skb != skb) && new_skb) | |
813 | dev_kfree_skb_any(new_skb); | |
814 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 815 | netif_wake_queue(dev); |
4a71df50 FB |
816 | return NETDEV_TX_OK; |
817 | } | |
818 | ||
39423440 | 819 | static int __qeth_l2_open(struct net_device *dev) |
4a71df50 | 820 | { |
509e2562 | 821 | struct qeth_card *card = dev->ml_priv; |
a1c3ed4c | 822 | int rc = 0; |
4a71df50 | 823 | |
847a50fd | 824 | QETH_CARD_TEXT(card, 4, "qethopen"); |
39423440 UB |
825 | if (card->state == CARD_STATE_UP) |
826 | return rc; | |
4a71df50 FB |
827 | if (card->state != CARD_STATE_SOFTSETUP) |
828 | return -ENODEV; | |
829 | ||
830 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
831 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
847a50fd | 832 | QETH_CARD_TEXT(card, 4, "nomacadr"); |
4a71df50 FB |
833 | return -EPERM; |
834 | } | |
835 | card->data.state = CH_STATE_UP; | |
836 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
837 | netif_start_queue(dev); |
838 | ||
a1c3ed4c FB |
839 | if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { |
840 | napi_enable(&card->napi); | |
841 | napi_schedule(&card->napi); | |
842 | } else | |
843 | rc = -EIO; | |
844 | return rc; | |
4a71df50 FB |
845 | } |
846 | ||
39423440 UB |
847 | static int qeth_l2_open(struct net_device *dev) |
848 | { | |
849 | struct qeth_card *card = dev->ml_priv; | |
850 | ||
851 | QETH_CARD_TEXT(card, 5, "qethope_"); | |
852 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { | |
853 | QETH_CARD_TEXT(card, 3, "openREC"); | |
854 | return -ERESTARTSYS; | |
855 | } | |
856 | return __qeth_l2_open(dev); | |
857 | } | |
858 | ||
4a71df50 FB |
859 | static int qeth_l2_stop(struct net_device *dev) |
860 | { | |
509e2562 | 861 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 862 | |
847a50fd | 863 | QETH_CARD_TEXT(card, 4, "qethstop"); |
4a71df50 | 864 | netif_tx_disable(dev); |
a1c3ed4c | 865 | if (card->state == CARD_STATE_UP) { |
4a71df50 | 866 | card->state = CARD_STATE_SOFTSETUP; |
a1c3ed4c FB |
867 | napi_disable(&card->napi); |
868 | } | |
4a71df50 FB |
869 | return 0; |
870 | } | |
871 | ||
872 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
873 | { | |
874 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
875 | ||
876 | INIT_LIST_HEAD(&card->vid_list); | |
877 | INIT_LIST_HEAD(&card->mc_list); | |
878 | card->options.layer2 = 1; | |
1da74b1c | 879 | card->info.hwtrap = 0; |
a1c3ed4c | 880 | card->discipline.start_poll = qeth_qdio_start_poll; |
4a71df50 | 881 | card->discipline.input_handler = (qdio_handler_t *) |
a1c3ed4c | 882 | qeth_qdio_input_handler; |
4a71df50 FB |
883 | card->discipline.output_handler = (qdio_handler_t *) |
884 | qeth_qdio_output_handler; | |
885 | card->discipline.recover = qeth_l2_recover; | |
886 | return 0; | |
887 | } | |
888 | ||
889 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
890 | { | |
891 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
892 | ||
f2148565 | 893 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
894 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
895 | ||
70919e23 | 896 | if (cgdev->state == CCWGROUP_ONLINE) |
4a71df50 | 897 | qeth_l2_set_offline(cgdev); |
4a71df50 FB |
898 | |
899 | if (card->dev) { | |
900 | unregister_netdev(card->dev); | |
901 | card->dev = NULL; | |
902 | } | |
4a71df50 FB |
903 | return; |
904 | } | |
905 | ||
0fc0b732 | 906 | static const struct ethtool_ops qeth_l2_ethtool_ops = { |
4a71df50 | 907 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
908 | .get_strings = qeth_core_get_strings, |
909 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 910 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 911 | .get_drvinfo = qeth_core_get_drvinfo, |
3f9975aa | 912 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
913 | }; |
914 | ||
0fc0b732 | 915 | static const struct ethtool_ops qeth_l2_osn_ops = { |
4a71df50 FB |
916 | .get_strings = qeth_core_get_strings, |
917 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 918 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 FB |
919 | .get_drvinfo = qeth_core_get_drvinfo, |
920 | }; | |
921 | ||
3d58cefd | 922 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
923 | .ndo_open = qeth_l2_open, |
924 | .ndo_stop = qeth_l2_stop, | |
925 | .ndo_get_stats = qeth_get_stats, | |
926 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
927 | .ndo_validate_addr = eth_validate_addr, | |
928 | .ndo_set_multicast_list = qeth_l2_set_multicast_list, | |
929 | .ndo_do_ioctl = qeth_l2_do_ioctl, | |
930 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
931 | .ndo_change_mtu = qeth_change_mtu, | |
932 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
933 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
934 | .ndo_tx_timeout = qeth_tx_timeout, | |
935 | }; | |
936 | ||
4a71df50 FB |
937 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
938 | { | |
939 | switch (card->info.type) { | |
4a71df50 FB |
940 | case QETH_CARD_TYPE_IQD: |
941 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
942 | break; | |
943 | case QETH_CARD_TYPE_OSN: | |
944 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
945 | card->dev->flags |= IFF_NOARP; | |
946 | break; | |
947 | default: | |
948 | card->dev = alloc_etherdev(0); | |
949 | } | |
950 | ||
951 | if (!card->dev) | |
952 | return -ENODEV; | |
953 | ||
509e2562 | 954 | card->dev->ml_priv = card; |
4a71df50 | 955 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 956 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 957 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
958 | if (card->info.type != QETH_CARD_TYPE_OSN) |
959 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
960 | else | |
961 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
962 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
963 | card->info.broadcast_capable = 1; | |
964 | qeth_l2_request_initial_mac(card); | |
965 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
a1c3ed4c | 966 | netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); |
4a71df50 FB |
967 | return register_netdev(card->dev); |
968 | } | |
969 | ||
970 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
971 | { | |
972 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
973 | int rc = 0; | |
974 | enum qeth_card_states recover_flag; | |
975 | ||
976 | BUG_ON(!card); | |
9dc48ccc | 977 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 978 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
979 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
980 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 981 | |
4a71df50 | 982 | recover_flag = card->state; |
4a71df50 FB |
983 | rc = qeth_core_hardsetup_card(card); |
984 | if (rc) { | |
d11ba0c4 | 985 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
aa909224 | 986 | rc = -ENODEV; |
4a71df50 FB |
987 | goto out_remove; |
988 | } | |
989 | ||
aa909224 UB |
990 | if (!card->dev && qeth_l2_setup_netdev(card)) { |
991 | rc = -ENODEV; | |
4a71df50 | 992 | goto out_remove; |
aa909224 | 993 | } |
4a71df50 FB |
994 | |
995 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
996 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
997 | ||
1da74b1c FB |
998 | if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { |
999 | if (card->info.hwtrap && | |
1000 | qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) | |
1001 | card->info.hwtrap = 0; | |
1002 | } else | |
1003 | card->info.hwtrap = 0; | |
1004 | ||
4a71df50 | 1005 | card->state = CARD_STATE_HARDSETUP; |
a1c3ed4c | 1006 | memset(&card->rx, 0, sizeof(struct qeth_rx)); |
4a71df50 FB |
1007 | qeth_print_status_message(card); |
1008 | ||
1009 | /* softsetup */ | |
d11ba0c4 | 1010 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
1011 | |
1012 | rc = qeth_send_startlan(card); | |
1013 | if (rc) { | |
d11ba0c4 | 1014 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 1015 | if (rc == 0xe080) { |
74eacdb9 FB |
1016 | dev_warn(&card->gdev->dev, |
1017 | "The LAN is offline\n"); | |
4a71df50 | 1018 | card->lan_online = 0; |
2b6203bb | 1019 | goto contin; |
4a71df50 | 1020 | } |
aa909224 | 1021 | rc = -ENODEV; |
f2148565 | 1022 | goto out_remove; |
4a71df50 FB |
1023 | } else |
1024 | card->lan_online = 1; | |
1025 | ||
2b6203bb | 1026 | contin: |
5113fec0 UB |
1027 | if ((card->info.type == QETH_CARD_TYPE_OSD) || |
1028 | (card->info.type == QETH_CARD_TYPE_OSX)) | |
d64ecc22 EL |
1029 | /* configure isolation level */ |
1030 | qeth_set_access_ctrl_online(card); | |
5113fec0 UB |
1031 | |
1032 | if (card->info.type != QETH_CARD_TYPE_OSN && | |
1033 | card->info.type != QETH_CARD_TYPE_OSM) | |
70919e23 | 1034 | qeth_l2_process_vlans(card); |
4a71df50 FB |
1035 | |
1036 | netif_tx_disable(card->dev); | |
1037 | ||
1038 | rc = qeth_init_qdio_queues(card); | |
1039 | if (rc) { | |
d11ba0c4 | 1040 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 1041 | rc = -ENODEV; |
4a71df50 FB |
1042 | goto out_remove; |
1043 | } | |
1044 | card->state = CARD_STATE_SOFTSETUP; | |
2b6203bb UB |
1045 | if (card->lan_online) |
1046 | netif_carrier_on(card->dev); | |
1047 | else | |
1048 | netif_carrier_off(card->dev); | |
4a71df50 FB |
1049 | |
1050 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1051 | if (recover_flag == CARD_STATE_RECOVER) { | |
1052 | if (recovery_mode && | |
1053 | card->info.type != QETH_CARD_TYPE_OSN) { | |
39423440 | 1054 | __qeth_l2_open(card->dev); |
4a71df50 FB |
1055 | } else { |
1056 | rtnl_lock(); | |
1057 | dev_open(card->dev); | |
1058 | rtnl_unlock(); | |
1059 | } | |
1060 | /* this also sets saved unicast addresses */ | |
1061 | qeth_l2_set_multicast_list(card->dev); | |
1062 | } | |
1063 | /* let user_space know that device is online */ | |
1064 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1065 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1066 | mutex_unlock(&card->discipline_mutex); |
4a71df50 | 1067 | return 0; |
aa909224 | 1068 | |
4a71df50 | 1069 | out_remove: |
4a71df50 FB |
1070 | qeth_l2_stop_card(card, 0); |
1071 | ccw_device_set_offline(CARD_DDEV(card)); | |
1072 | ccw_device_set_offline(CARD_WDEV(card)); | |
1073 | ccw_device_set_offline(CARD_RDEV(card)); | |
1074 | if (recover_flag == CARD_STATE_RECOVER) | |
1075 | card->state = CARD_STATE_RECOVER; | |
1076 | else | |
1077 | card->state = CARD_STATE_DOWN; | |
c4949f07 | 1078 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1079 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 1080 | return rc; |
4a71df50 FB |
1081 | } |
1082 | ||
1083 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1084 | { | |
1085 | return __qeth_l2_set_online(gdev, 0); | |
1086 | } | |
1087 | ||
1088 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1089 | int recovery_mode) | |
1090 | { | |
1091 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1092 | int rc = 0, rc2 = 0, rc3 = 0; | |
1093 | enum qeth_card_states recover_flag; | |
1094 | ||
9dc48ccc | 1095 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 1096 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
1097 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1098 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1099 | |
1100 | if (card->dev && netif_carrier_ok(card->dev)) | |
1101 | netif_carrier_off(card->dev); | |
1102 | recover_flag = card->state; | |
1da74b1c FB |
1103 | if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { |
1104 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
1105 | card->info.hwtrap = 1; | |
1106 | } | |
0f5623c9 | 1107 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1108 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1109 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1110 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1111 | if (!rc) | |
1112 | rc = (rc2) ? rc2 : rc3; | |
1113 | if (rc) | |
d11ba0c4 | 1114 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1115 | if (recover_flag == CARD_STATE_UP) |
1116 | card->state = CARD_STATE_RECOVER; | |
1117 | /* let user_space know that device is offline */ | |
1118 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1119 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1120 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
1121 | return 0; |
1122 | } | |
1123 | ||
1124 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1125 | { | |
1126 | return __qeth_l2_set_offline(cgdev, 0); | |
1127 | } | |
1128 | ||
1129 | static int qeth_l2_recover(void *ptr) | |
1130 | { | |
1131 | struct qeth_card *card; | |
1132 | int rc = 0; | |
1133 | ||
1134 | card = (struct qeth_card *) ptr; | |
847a50fd | 1135 | QETH_CARD_TEXT(card, 2, "recover1"); |
4a71df50 FB |
1136 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1137 | return 0; | |
847a50fd | 1138 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
1139 | dev_warn(&card->gdev->dev, |
1140 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1141 | __qeth_l2_set_offline(card->gdev, 1); |
1142 | rc = __qeth_l2_set_online(card->gdev, 1); | |
4a71df50 | 1143 | if (!rc) |
74eacdb9 FB |
1144 | dev_info(&card->gdev->dev, |
1145 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1146 | else { |
869da90b UB |
1147 | rtnl_lock(); |
1148 | dev_close(card->dev); | |
1149 | rtnl_unlock(); | |
74eacdb9 FB |
1150 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1151 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1152 | } |
a1c3ed4c FB |
1153 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
1154 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
1155 | return 0; |
1156 | } | |
1157 | ||
1158 | static int __init qeth_l2_init(void) | |
1159 | { | |
74eacdb9 | 1160 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1161 | return 0; |
1162 | } | |
1163 | ||
1164 | static void __exit qeth_l2_exit(void) | |
1165 | { | |
74eacdb9 | 1166 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1167 | } |
1168 | ||
1169 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1170 | { | |
1171 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
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 | ||
4a71df50 FB |
1224 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { |
1225 | .probe = qeth_l2_probe_device, | |
1226 | .remove = qeth_l2_remove_device, | |
1227 | .set_online = qeth_l2_set_online, | |
1228 | .set_offline = qeth_l2_set_offline, | |
1229 | .shutdown = qeth_l2_shutdown, | |
bbcfcdc8 FB |
1230 | .freeze = qeth_l2_pm_suspend, |
1231 | .thaw = qeth_l2_pm_resume, | |
1232 | .restore = qeth_l2_pm_resume, | |
4a71df50 FB |
1233 | }; |
1234 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1235 | ||
1236 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1237 | struct qeth_cmd_buffer *iob) | |
1238 | { | |
1239 | unsigned long flags; | |
1240 | int rc = 0; | |
1241 | ||
847a50fd | 1242 | QETH_CARD_TEXT(card, 5, "osndctrd"); |
4a71df50 FB |
1243 | |
1244 | wait_event(card->wait_q, | |
1245 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1246 | qeth_prepare_control_data(card, len, iob); | |
847a50fd | 1247 | QETH_CARD_TEXT(card, 6, "osnoirqp"); |
4a71df50 FB |
1248 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1249 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1250 | (addr_t) iob, 0, 0); | |
1251 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1252 | if (rc) { | |
14cc21b6 | 1253 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1254 | "ccw_device_start rc = %i\n", rc); |
847a50fd | 1255 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
1256 | qeth_release_buffer(iob->channel, iob); |
1257 | atomic_set(&card->write.irq_pending, 0); | |
1258 | wake_up(&card->wait_q); | |
1259 | } | |
1260 | return rc; | |
1261 | } | |
1262 | ||
1263 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1264 | struct qeth_cmd_buffer *iob, int data_len) | |
1265 | { | |
1266 | u16 s1, s2; | |
1267 | ||
847a50fd | 1268 | QETH_CARD_TEXT(card, 4, "osndipa"); |
4a71df50 FB |
1269 | |
1270 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1271 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1272 | s2 = (u16)data_len; | |
1273 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1274 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1275 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1276 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1277 | return qeth_osn_send_control_data(card, s1, iob); | |
1278 | } | |
1279 | ||
1280 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1281 | { | |
1282 | struct qeth_cmd_buffer *iob; | |
1283 | struct qeth_card *card; | |
1284 | int rc; | |
1285 | ||
4a71df50 FB |
1286 | if (!dev) |
1287 | return -ENODEV; | |
509e2562 | 1288 | card = dev->ml_priv; |
4a71df50 FB |
1289 | if (!card) |
1290 | return -ENODEV; | |
847a50fd | 1291 | QETH_CARD_TEXT(card, 2, "osnsdmc"); |
4a71df50 FB |
1292 | if ((card->state != CARD_STATE_UP) && |
1293 | (card->state != CARD_STATE_SOFTSETUP)) | |
1294 | return -ENODEV; | |
1295 | iob = qeth_wait_for_buffer(&card->write); | |
1296 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1297 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1298 | return rc; | |
1299 | } | |
1300 | EXPORT_SYMBOL(qeth_osn_assist); | |
1301 | ||
1302 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1303 | int (*assist_cb)(struct net_device *, void *), | |
1304 | int (*data_cb)(struct sk_buff *)) | |
1305 | { | |
1306 | struct qeth_card *card; | |
1307 | ||
4a71df50 FB |
1308 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1309 | if (*dev == NULL) | |
1310 | return -ENODEV; | |
509e2562 | 1311 | card = (*dev)->ml_priv; |
4a71df50 FB |
1312 | if (!card) |
1313 | return -ENODEV; | |
847a50fd | 1314 | QETH_CARD_TEXT(card, 2, "osnreg"); |
4a71df50 FB |
1315 | if ((assist_cb == NULL) || (data_cb == NULL)) |
1316 | return -EINVAL; | |
1317 | card->osn_info.assist_cb = assist_cb; | |
1318 | card->osn_info.data_cb = data_cb; | |
1319 | return 0; | |
1320 | } | |
1321 | EXPORT_SYMBOL(qeth_osn_register); | |
1322 | ||
1323 | void qeth_osn_deregister(struct net_device *dev) | |
1324 | { | |
1325 | struct qeth_card *card; | |
1326 | ||
4a71df50 FB |
1327 | if (!dev) |
1328 | return; | |
509e2562 | 1329 | card = dev->ml_priv; |
4a71df50 FB |
1330 | if (!card) |
1331 | return; | |
847a50fd | 1332 | QETH_CARD_TEXT(card, 2, "osndereg"); |
4a71df50 FB |
1333 | card->osn_info.assist_cb = NULL; |
1334 | card->osn_info.data_cb = NULL; | |
1335 | return; | |
1336 | } | |
1337 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1338 | ||
1339 | module_init(qeth_l2_init); | |
1340 | module_exit(qeth_l2_exit); | |
1341 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1342 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1343 | MODULE_LICENSE("GPL"); |