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, | |
412 | card->qdio.in_q->bufs[card->rx.b_index].buffer, | |
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); | |
423 | if (card->options.checksum_type == NO_CHECKSUMMING) | |
424 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
425 | else | |
426 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
427 | if (skb->protocol == htons(ETH_P_802_2)) |
428 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 | 429 | len = skb->len; |
a1c3ed4c | 430 | netif_receive_skb(skb); |
4a71df50 FB |
431 | break; |
432 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
433 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
434 | skb_push(skb, sizeof(struct qeth_hdr)); | |
435 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 436 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
437 | len = skb->len; |
438 | card->osn_info.data_cb(skb); | |
439 | break; | |
440 | } | |
441 | /* else unknown */ | |
4a71df50 FB |
442 | default: |
443 | dev_kfree_skb_any(skb); | |
847a50fd | 444 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
d11ba0c4 | 445 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
446 | continue; |
447 | } | |
a1c3ed4c FB |
448 | work_done++; |
449 | budget--; | |
4a71df50 FB |
450 | card->stats.rx_packets++; |
451 | card->stats.rx_bytes += len; | |
452 | } | |
a1c3ed4c FB |
453 | return work_done; |
454 | } | |
455 | ||
456 | static int qeth_l2_poll(struct napi_struct *napi, int budget) | |
457 | { | |
458 | struct qeth_card *card = container_of(napi, struct qeth_card, napi); | |
459 | int work_done = 0; | |
460 | struct qeth_qdio_buffer *buffer; | |
461 | int done; | |
462 | int new_budget = budget; | |
463 | ||
464 | if (card->options.performance_stats) { | |
465 | card->perf_stats.inbound_cnt++; | |
466 | card->perf_stats.inbound_start_time = qeth_get_micros(); | |
467 | } | |
468 | ||
469 | while (1) { | |
470 | if (!card->rx.b_count) { | |
471 | card->rx.qdio_err = 0; | |
472 | card->rx.b_count = qdio_get_next_buffers( | |
473 | card->data.ccwdev, 0, &card->rx.b_index, | |
474 | &card->rx.qdio_err); | |
475 | if (card->rx.b_count <= 0) { | |
476 | card->rx.b_count = 0; | |
477 | break; | |
478 | } | |
479 | card->rx.b_element = | |
480 | &card->qdio.in_q->bufs[card->rx.b_index] | |
481 | .buffer->element[0]; | |
482 | card->rx.e_offset = 0; | |
483 | } | |
484 | ||
485 | while (card->rx.b_count) { | |
486 | buffer = &card->qdio.in_q->bufs[card->rx.b_index]; | |
487 | if (!(card->rx.qdio_err && | |
488 | qeth_check_qdio_errors(card, buffer->buffer, | |
489 | card->rx.qdio_err, "qinerr"))) | |
490 | work_done += qeth_l2_process_inbound_buffer( | |
491 | card, new_budget, &done); | |
492 | else | |
493 | done = 1; | |
494 | ||
495 | if (done) { | |
496 | if (card->options.performance_stats) | |
497 | card->perf_stats.bufs_rec++; | |
498 | qeth_put_buffer_pool_entry(card, | |
499 | buffer->pool_entry); | |
500 | qeth_queue_input_buffer(card, card->rx.b_index); | |
501 | card->rx.b_count--; | |
502 | if (card->rx.b_count) { | |
503 | card->rx.b_index = | |
504 | (card->rx.b_index + 1) % | |
505 | QDIO_MAX_BUFFERS_PER_Q; | |
506 | card->rx.b_element = | |
507 | &card->qdio.in_q | |
508 | ->bufs[card->rx.b_index] | |
509 | .buffer->element[0]; | |
510 | card->rx.e_offset = 0; | |
511 | } | |
512 | } | |
513 | ||
514 | if (work_done >= budget) | |
515 | goto out; | |
516 | else | |
517 | new_budget = budget - work_done; | |
518 | } | |
519 | } | |
520 | ||
521 | napi_complete(napi); | |
522 | if (qdio_start_irq(card->data.ccwdev, 0)) | |
523 | napi_schedule(&card->napi); | |
524 | out: | |
525 | if (card->options.performance_stats) | |
526 | card->perf_stats.inbound_time += qeth_get_micros() - | |
527 | card->perf_stats.inbound_start_time; | |
528 | return work_done; | |
4a71df50 FB |
529 | } |
530 | ||
531 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, | |
532 | enum qeth_ipa_cmds ipacmd, | |
533 | int (*reply_cb) (struct qeth_card *, | |
534 | struct qeth_reply*, | |
535 | unsigned long)) | |
536 | { | |
537 | struct qeth_ipa_cmd *cmd; | |
538 | struct qeth_cmd_buffer *iob; | |
539 | ||
847a50fd | 540 | QETH_CARD_TEXT(card, 2, "L2sdmac"); |
4a71df50 FB |
541 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
542 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); | |
543 | cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; | |
544 | memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); | |
545 | return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); | |
546 | } | |
547 | ||
548 | static int qeth_l2_send_setmac_cb(struct qeth_card *card, | |
549 | struct qeth_reply *reply, | |
550 | unsigned long data) | |
551 | { | |
552 | struct qeth_ipa_cmd *cmd; | |
553 | ||
847a50fd | 554 | QETH_CARD_TEXT(card, 2, "L2Smaccb"); |
4a71df50 FB |
555 | cmd = (struct qeth_ipa_cmd *) data; |
556 | if (cmd->hdr.return_code) { | |
847a50fd | 557 | QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code); |
4a71df50 | 558 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
0666eb06 UB |
559 | switch (cmd->hdr.return_code) { |
560 | case IPA_RC_L2_DUP_MAC: | |
561 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
562 | dev_warn(&card->gdev->dev, | |
d998ab0b | 563 | "MAC address %pM already exists\n", |
221c17fe | 564 | cmd->data.setdelmac.mac); |
0666eb06 UB |
565 | break; |
566 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
567 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
568 | dev_warn(&card->gdev->dev, | |
d998ab0b | 569 | "MAC address %pM is not authorized\n", |
221c17fe | 570 | cmd->data.setdelmac.mac); |
0666eb06 UB |
571 | break; |
572 | default: | |
573 | break; | |
574 | } | |
4a71df50 FB |
575 | cmd->hdr.return_code = -EIO; |
576 | } else { | |
577 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
578 | memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, | |
579 | OSA_ADDR_LEN); | |
74eacdb9 | 580 | dev_info(&card->gdev->dev, |
d998ab0b HS |
581 | "MAC address %pM successfully registered on device %s\n", |
582 | card->dev->dev_addr, card->dev->name); | |
4a71df50 FB |
583 | } |
584 | return 0; | |
585 | } | |
586 | ||
587 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
588 | { | |
847a50fd | 589 | QETH_CARD_TEXT(card, 2, "L2Setmac"); |
4a71df50 FB |
590 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, |
591 | qeth_l2_send_setmac_cb); | |
592 | } | |
593 | ||
594 | static int qeth_l2_send_delmac_cb(struct qeth_card *card, | |
595 | struct qeth_reply *reply, | |
596 | unsigned long data) | |
597 | { | |
598 | struct qeth_ipa_cmd *cmd; | |
599 | ||
847a50fd | 600 | QETH_CARD_TEXT(card, 2, "L2Dmaccb"); |
4a71df50 FB |
601 | cmd = (struct qeth_ipa_cmd *) data; |
602 | if (cmd->hdr.return_code) { | |
847a50fd | 603 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); |
4a71df50 FB |
604 | cmd->hdr.return_code = -EIO; |
605 | return 0; | |
606 | } | |
607 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; | |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
612 | static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) | |
613 | { | |
847a50fd | 614 | QETH_CARD_TEXT(card, 2, "L2Delmac"); |
4a71df50 FB |
615 | if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) |
616 | return 0; | |
617 | return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, | |
618 | qeth_l2_send_delmac_cb); | |
619 | } | |
620 | ||
621 | static int qeth_l2_request_initial_mac(struct qeth_card *card) | |
622 | { | |
623 | int rc = 0; | |
624 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
625 | ||
d11ba0c4 PT |
626 | QETH_DBF_TEXT(SETUP, 2, "doL2init"); |
627 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); | |
4a71df50 FB |
628 | |
629 | rc = qeth_query_setadapterparms(card); | |
630 | if (rc) { | |
14cc21b6 FB |
631 | QETH_DBF_MESSAGE(2, "could not query adapter parameters on " |
632 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
4a71df50 FB |
633 | } |
634 | ||
5113fec0 UB |
635 | if (card->info.type == QETH_CARD_TYPE_IQD || |
636 | card->info.type == QETH_CARD_TYPE_OSM || | |
637 | card->info.type == QETH_CARD_TYPE_OSX || | |
638 | card->info.guestlan) { | |
4a71df50 FB |
639 | rc = qeth_setadpparms_change_macaddr(card); |
640 | if (rc) { | |
14cc21b6 FB |
641 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
642 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
d11ba0c4 | 643 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
644 | return rc; |
645 | } | |
d11ba0c4 | 646 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); |
4a71df50 FB |
647 | } else { |
648 | random_ether_addr(card->dev->dev_addr); | |
649 | memcpy(card->dev->dev_addr, vendor_pre, 3); | |
650 | } | |
651 | return 0; | |
652 | } | |
653 | ||
654 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
655 | { | |
656 | struct sockaddr *addr = p; | |
509e2562 | 657 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
658 | int rc = 0; |
659 | ||
847a50fd | 660 | QETH_CARD_TEXT(card, 3, "setmac"); |
4a71df50 FB |
661 | |
662 | if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { | |
847a50fd | 663 | QETH_CARD_TEXT(card, 3, "setmcINV"); |
4a71df50 FB |
664 | return -EOPNOTSUPP; |
665 | } | |
666 | ||
5113fec0 UB |
667 | if (card->info.type == QETH_CARD_TYPE_OSN || |
668 | card->info.type == QETH_CARD_TYPE_OSM || | |
669 | card->info.type == QETH_CARD_TYPE_OSX) { | |
847a50fd | 670 | QETH_CARD_TEXT(card, 3, "setmcTYP"); |
4a71df50 FB |
671 | return -EOPNOTSUPP; |
672 | } | |
847a50fd | 673 | QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); |
8e98ac48 | 674 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 675 | QETH_CARD_TEXT(card, 3, "setmcREC"); |
8e98ac48 UB |
676 | return -ERESTARTSYS; |
677 | } | |
4a71df50 FB |
678 | rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); |
679 | if (!rc) | |
680 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
681 | return rc; | |
682 | } | |
683 | ||
684 | static void qeth_l2_set_multicast_list(struct net_device *dev) | |
685 | { | |
509e2562 | 686 | struct qeth_card *card = dev->ml_priv; |
ccffad25 | 687 | struct netdev_hw_addr *ha; |
4a71df50 FB |
688 | |
689 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
690 | return ; | |
691 | ||
847a50fd | 692 | QETH_CARD_TEXT(card, 3, "setmulti"); |
8e98ac48 UB |
693 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
694 | (card->state != CARD_STATE_UP)) | |
695 | return; | |
70919e23 | 696 | qeth_l2_del_all_mc(card, 1); |
4a71df50 | 697 | spin_lock_bh(&card->mclock); |
22bedad3 JP |
698 | netdev_for_each_mc_addr(ha, dev) |
699 | qeth_l2_add_mc(card, ha->addr, 0); | |
7db2266a | 700 | |
32e7bfc4 | 701 | netdev_for_each_uc_addr(ha, dev) |
ccffad25 | 702 | qeth_l2_add_mc(card, ha->addr, 1); |
7db2266a | 703 | |
4a71df50 FB |
704 | spin_unlock_bh(&card->mclock); |
705 | if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) | |
706 | return; | |
707 | qeth_setadp_promisc_mode(card); | |
708 | } | |
709 | ||
710 | static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
711 | { | |
712 | int rc; | |
713 | struct qeth_hdr *hdr = NULL; | |
714 | int elements = 0; | |
509e2562 | 715 | struct qeth_card *card = dev->ml_priv; |
4a71df50 FB |
716 | struct sk_buff *new_skb = skb; |
717 | int ipv = qeth_get_ip_version(skb); | |
ce73e10e | 718 | int cast_type = qeth_l2_get_cast_type(card, skb); |
4a71df50 FB |
719 | struct qeth_qdio_out_q *queue = card->qdio.out_qs |
720 | [qeth_get_priority_queue(card, skb, ipv, cast_type)]; | |
721 | int tx_bytes = skb->len; | |
683d718a FB |
722 | int data_offset = -1; |
723 | int elements_needed = 0; | |
724 | int hd_len = 0; | |
4a71df50 | 725 | |
4a71df50 FB |
726 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { |
727 | card->stats.tx_carrier_errors++; | |
728 | goto tx_drop; | |
729 | } | |
730 | ||
731 | if ((card->info.type == QETH_CARD_TYPE_OSN) && | |
732 | (skb->protocol == htons(ETH_P_IPV6))) | |
733 | goto tx_drop; | |
734 | ||
735 | if (card->options.performance_stats) { | |
736 | card->perf_stats.outbound_cnt++; | |
737 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
738 | } | |
739 | netif_stop_queue(dev); | |
740 | ||
4a71df50 FB |
741 | if (card->info.type == QETH_CARD_TYPE_OSN) |
742 | hdr = (struct qeth_hdr *)skb->data; | |
743 | else { | |
64ef8957 | 744 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
683d718a FB |
745 | new_skb = skb; |
746 | data_offset = ETH_HLEN; | |
747 | hd_len = ETH_HLEN; | |
748 | hdr = kmem_cache_alloc(qeth_core_header_cache, | |
749 | GFP_ATOMIC); | |
750 | if (!hdr) | |
751 | goto tx_drop; | |
752 | elements_needed++; | |
753 | skb_reset_mac_header(new_skb); | |
754 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
755 | hdr->hdr.l2.pkt_length = new_skb->len; | |
756 | memcpy(((char *)hdr) + sizeof(struct qeth_hdr), | |
757 | skb_mac_header(new_skb), ETH_HLEN); | |
758 | } else { | |
759 | /* create a clone with writeable headroom */ | |
760 | new_skb = skb_realloc_headroom(skb, | |
761 | sizeof(struct qeth_hdr)); | |
762 | if (!new_skb) | |
763 | goto tx_drop; | |
764 | hdr = (struct qeth_hdr *)skb_push(new_skb, | |
f90b744e | 765 | sizeof(struct qeth_hdr)); |
683d718a FB |
766 | skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); |
767 | qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type); | |
768 | } | |
4a71df50 FB |
769 | } |
770 | ||
64ef8957 | 771 | elements = qeth_get_elements_no(card, (void *)hdr, new_skb, |
683d718a | 772 | elements_needed); |
64ef8957 FB |
773 | if (!elements) { |
774 | if (data_offset >= 0) | |
775 | kmem_cache_free(qeth_core_header_cache, hdr); | |
776 | goto tx_drop; | |
f61a0d05 | 777 | } |
4a71df50 | 778 | |
51aa165c FB |
779 | if (card->info.type != QETH_CARD_TYPE_IQD) { |
780 | if (qeth_hdr_chk_and_bounce(new_skb, | |
781 | sizeof(struct qeth_hdr_layer2))) | |
782 | goto tx_drop; | |
4a71df50 | 783 | rc = qeth_do_send_packet(card, queue, new_skb, hdr, |
64ef8957 | 784 | elements); |
51aa165c | 785 | } else |
4a71df50 | 786 | rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, |
64ef8957 | 787 | elements, data_offset, hd_len); |
4a71df50 FB |
788 | if (!rc) { |
789 | card->stats.tx_packets++; | |
790 | card->stats.tx_bytes += tx_bytes; | |
791 | if (new_skb != skb) | |
792 | dev_kfree_skb_any(skb); | |
ec634fe3 | 793 | rc = NETDEV_TX_OK; |
4a71df50 | 794 | } else { |
683d718a FB |
795 | if (data_offset >= 0) |
796 | kmem_cache_free(qeth_core_header_cache, hdr); | |
797 | ||
4a71df50 FB |
798 | if (rc == -EBUSY) { |
799 | if (new_skb != skb) | |
800 | dev_kfree_skb_any(new_skb); | |
801 | return NETDEV_TX_BUSY; | |
802 | } else | |
803 | goto tx_drop; | |
804 | } | |
805 | ||
806 | netif_wake_queue(dev); | |
807 | if (card->options.performance_stats) | |
808 | card->perf_stats.outbound_time += qeth_get_micros() - | |
809 | card->perf_stats.outbound_start_time; | |
810 | return rc; | |
811 | ||
812 | tx_drop: | |
813 | card->stats.tx_dropped++; | |
814 | card->stats.tx_errors++; | |
815 | if ((new_skb != skb) && new_skb) | |
816 | dev_kfree_skb_any(new_skb); | |
817 | dev_kfree_skb_any(skb); | |
d0ec0f54 | 818 | netif_wake_queue(dev); |
4a71df50 FB |
819 | return NETDEV_TX_OK; |
820 | } | |
821 | ||
39423440 | 822 | static int __qeth_l2_open(struct net_device *dev) |
4a71df50 | 823 | { |
509e2562 | 824 | struct qeth_card *card = dev->ml_priv; |
a1c3ed4c | 825 | int rc = 0; |
4a71df50 | 826 | |
847a50fd | 827 | QETH_CARD_TEXT(card, 4, "qethopen"); |
39423440 UB |
828 | if (card->state == CARD_STATE_UP) |
829 | return rc; | |
4a71df50 FB |
830 | if (card->state != CARD_STATE_SOFTSETUP) |
831 | return -ENODEV; | |
832 | ||
833 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
834 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
847a50fd | 835 | QETH_CARD_TEXT(card, 4, "nomacadr"); |
4a71df50 FB |
836 | return -EPERM; |
837 | } | |
838 | card->data.state = CH_STATE_UP; | |
839 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
840 | netif_start_queue(dev); |
841 | ||
a1c3ed4c FB |
842 | if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { |
843 | napi_enable(&card->napi); | |
844 | napi_schedule(&card->napi); | |
845 | } else | |
846 | rc = -EIO; | |
847 | return rc; | |
4a71df50 FB |
848 | } |
849 | ||
39423440 UB |
850 | static int qeth_l2_open(struct net_device *dev) |
851 | { | |
852 | struct qeth_card *card = dev->ml_priv; | |
853 | ||
854 | QETH_CARD_TEXT(card, 5, "qethope_"); | |
855 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { | |
856 | QETH_CARD_TEXT(card, 3, "openREC"); | |
857 | return -ERESTARTSYS; | |
858 | } | |
859 | return __qeth_l2_open(dev); | |
860 | } | |
861 | ||
4a71df50 FB |
862 | static int qeth_l2_stop(struct net_device *dev) |
863 | { | |
509e2562 | 864 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 865 | |
847a50fd | 866 | QETH_CARD_TEXT(card, 4, "qethstop"); |
4a71df50 | 867 | netif_tx_disable(dev); |
a1c3ed4c | 868 | if (card->state == CARD_STATE_UP) { |
4a71df50 | 869 | card->state = CARD_STATE_SOFTSETUP; |
a1c3ed4c FB |
870 | napi_disable(&card->napi); |
871 | } | |
4a71df50 FB |
872 | return 0; |
873 | } | |
874 | ||
875 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) | |
876 | { | |
877 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
878 | ||
879 | INIT_LIST_HEAD(&card->vid_list); | |
880 | INIT_LIST_HEAD(&card->mc_list); | |
881 | card->options.layer2 = 1; | |
a1c3ed4c | 882 | card->discipline.start_poll = qeth_qdio_start_poll; |
4a71df50 | 883 | card->discipline.input_handler = (qdio_handler_t *) |
a1c3ed4c | 884 | qeth_qdio_input_handler; |
4a71df50 FB |
885 | card->discipline.output_handler = (qdio_handler_t *) |
886 | qeth_qdio_output_handler; | |
887 | card->discipline.recover = qeth_l2_recover; | |
888 | return 0; | |
889 | } | |
890 | ||
891 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
892 | { | |
893 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
894 | ||
f2148565 | 895 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
896 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
897 | ||
70919e23 | 898 | if (cgdev->state == CCWGROUP_ONLINE) |
4a71df50 | 899 | qeth_l2_set_offline(cgdev); |
4a71df50 FB |
900 | |
901 | if (card->dev) { | |
902 | unregister_netdev(card->dev); | |
903 | card->dev = NULL; | |
904 | } | |
4a71df50 FB |
905 | return; |
906 | } | |
907 | ||
0fc0b732 | 908 | static const struct ethtool_ops qeth_l2_ethtool_ops = { |
4a71df50 | 909 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
910 | .get_strings = qeth_core_get_strings, |
911 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 912 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 913 | .get_drvinfo = qeth_core_get_drvinfo, |
3f9975aa | 914 | .get_settings = qeth_core_ethtool_get_settings, |
4a71df50 FB |
915 | }; |
916 | ||
0fc0b732 | 917 | static const struct ethtool_ops qeth_l2_osn_ops = { |
4a71df50 FB |
918 | .get_strings = qeth_core_get_strings, |
919 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 920 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 FB |
921 | .get_drvinfo = qeth_core_get_drvinfo, |
922 | }; | |
923 | ||
3d58cefd | 924 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
925 | .ndo_open = qeth_l2_open, |
926 | .ndo_stop = qeth_l2_stop, | |
927 | .ndo_get_stats = qeth_get_stats, | |
928 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
929 | .ndo_validate_addr = eth_validate_addr, | |
930 | .ndo_set_multicast_list = qeth_l2_set_multicast_list, | |
931 | .ndo_do_ioctl = qeth_l2_do_ioctl, | |
932 | .ndo_set_mac_address = qeth_l2_set_mac_address, | |
933 | .ndo_change_mtu = qeth_change_mtu, | |
934 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
935 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
936 | .ndo_tx_timeout = qeth_tx_timeout, | |
937 | }; | |
938 | ||
4a71df50 FB |
939 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
940 | { | |
941 | switch (card->info.type) { | |
4a71df50 FB |
942 | case QETH_CARD_TYPE_IQD: |
943 | card->dev = alloc_netdev(0, "hsi%d", ether_setup); | |
944 | break; | |
945 | case QETH_CARD_TYPE_OSN: | |
946 | card->dev = alloc_netdev(0, "osn%d", ether_setup); | |
947 | card->dev->flags |= IFF_NOARP; | |
948 | break; | |
949 | default: | |
950 | card->dev = alloc_etherdev(0); | |
951 | } | |
952 | ||
953 | if (!card->dev) | |
954 | return -ENODEV; | |
955 | ||
509e2562 | 956 | card->dev->ml_priv = card; |
4a71df50 | 957 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 958 | card->dev->mtu = card->info.initial_mtu; |
8403b13c | 959 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
4a71df50 FB |
960 | if (card->info.type != QETH_CARD_TYPE_OSN) |
961 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_ethtool_ops); | |
962 | else | |
963 | SET_ETHTOOL_OPS(card->dev, &qeth_l2_osn_ops); | |
964 | card->dev->features |= NETIF_F_HW_VLAN_FILTER; | |
965 | card->info.broadcast_capable = 1; | |
966 | qeth_l2_request_initial_mac(card); | |
967 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
a1c3ed4c | 968 | netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); |
4a71df50 FB |
969 | return register_netdev(card->dev); |
970 | } | |
971 | ||
972 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) | |
973 | { | |
974 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
975 | int rc = 0; | |
976 | enum qeth_card_states recover_flag; | |
977 | ||
978 | BUG_ON(!card); | |
9dc48ccc | 979 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 980 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
981 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
982 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 983 | |
4a71df50 | 984 | recover_flag = card->state; |
4a71df50 FB |
985 | rc = qeth_core_hardsetup_card(card); |
986 | if (rc) { | |
d11ba0c4 | 987 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
aa909224 | 988 | rc = -ENODEV; |
4a71df50 FB |
989 | goto out_remove; |
990 | } | |
991 | ||
aa909224 UB |
992 | if (!card->dev && qeth_l2_setup_netdev(card)) { |
993 | rc = -ENODEV; | |
4a71df50 | 994 | goto out_remove; |
aa909224 | 995 | } |
4a71df50 FB |
996 | |
997 | if (card->info.type != QETH_CARD_TYPE_OSN) | |
998 | qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); | |
999 | ||
1000 | card->state = CARD_STATE_HARDSETUP; | |
a1c3ed4c | 1001 | memset(&card->rx, 0, sizeof(struct qeth_rx)); |
4a71df50 FB |
1002 | qeth_print_status_message(card); |
1003 | ||
1004 | /* softsetup */ | |
d11ba0c4 | 1005 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 FB |
1006 | |
1007 | rc = qeth_send_startlan(card); | |
1008 | if (rc) { | |
d11ba0c4 | 1009 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 | 1010 | if (rc == 0xe080) { |
74eacdb9 FB |
1011 | dev_warn(&card->gdev->dev, |
1012 | "The LAN is offline\n"); | |
4a71df50 | 1013 | card->lan_online = 0; |
2b6203bb | 1014 | goto contin; |
4a71df50 | 1015 | } |
aa909224 | 1016 | rc = -ENODEV; |
f2148565 | 1017 | goto out_remove; |
4a71df50 FB |
1018 | } else |
1019 | card->lan_online = 1; | |
1020 | ||
2b6203bb | 1021 | contin: |
5113fec0 UB |
1022 | if ((card->info.type == QETH_CARD_TYPE_OSD) || |
1023 | (card->info.type == QETH_CARD_TYPE_OSX)) | |
d64ecc22 EL |
1024 | /* configure isolation level */ |
1025 | qeth_set_access_ctrl_online(card); | |
5113fec0 UB |
1026 | |
1027 | if (card->info.type != QETH_CARD_TYPE_OSN && | |
1028 | card->info.type != QETH_CARD_TYPE_OSM) | |
70919e23 | 1029 | qeth_l2_process_vlans(card); |
4a71df50 FB |
1030 | |
1031 | netif_tx_disable(card->dev); | |
1032 | ||
1033 | rc = qeth_init_qdio_queues(card); | |
1034 | if (rc) { | |
d11ba0c4 | 1035 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 1036 | rc = -ENODEV; |
4a71df50 FB |
1037 | goto out_remove; |
1038 | } | |
1039 | card->state = CARD_STATE_SOFTSETUP; | |
2b6203bb UB |
1040 | if (card->lan_online) |
1041 | netif_carrier_on(card->dev); | |
1042 | else | |
1043 | netif_carrier_off(card->dev); | |
4a71df50 FB |
1044 | |
1045 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1046 | if (recover_flag == CARD_STATE_RECOVER) { | |
1047 | if (recovery_mode && | |
1048 | card->info.type != QETH_CARD_TYPE_OSN) { | |
39423440 | 1049 | __qeth_l2_open(card->dev); |
4a71df50 FB |
1050 | } else { |
1051 | rtnl_lock(); | |
1052 | dev_open(card->dev); | |
1053 | rtnl_unlock(); | |
1054 | } | |
1055 | /* this also sets saved unicast addresses */ | |
1056 | qeth_l2_set_multicast_list(card->dev); | |
1057 | } | |
1058 | /* let user_space know that device is online */ | |
1059 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1060 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1061 | mutex_unlock(&card->discipline_mutex); |
4a71df50 | 1062 | return 0; |
aa909224 | 1063 | |
4a71df50 | 1064 | out_remove: |
4a71df50 FB |
1065 | qeth_l2_stop_card(card, 0); |
1066 | ccw_device_set_offline(CARD_DDEV(card)); | |
1067 | ccw_device_set_offline(CARD_WDEV(card)); | |
1068 | ccw_device_set_offline(CARD_RDEV(card)); | |
1069 | if (recover_flag == CARD_STATE_RECOVER) | |
1070 | card->state = CARD_STATE_RECOVER; | |
1071 | else | |
1072 | card->state = CARD_STATE_DOWN; | |
c4949f07 | 1073 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1074 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 1075 | return rc; |
4a71df50 FB |
1076 | } |
1077 | ||
1078 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1079 | { | |
1080 | return __qeth_l2_set_online(gdev, 0); | |
1081 | } | |
1082 | ||
1083 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1084 | int recovery_mode) | |
1085 | { | |
1086 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1087 | int rc = 0, rc2 = 0, rc3 = 0; | |
1088 | enum qeth_card_states recover_flag; | |
1089 | ||
9dc48ccc | 1090 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 1091 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
1092 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1093 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1094 | |
1095 | if (card->dev && netif_carrier_ok(card->dev)) | |
1096 | netif_carrier_off(card->dev); | |
1097 | recover_flag = card->state; | |
0f5623c9 | 1098 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1099 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1100 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1101 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1102 | if (!rc) | |
1103 | rc = (rc2) ? rc2 : rc3; | |
1104 | if (rc) | |
d11ba0c4 | 1105 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
4a71df50 FB |
1106 | if (recover_flag == CARD_STATE_UP) |
1107 | card->state = CARD_STATE_RECOVER; | |
1108 | /* let user_space know that device is offline */ | |
1109 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1110 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1111 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
1112 | return 0; |
1113 | } | |
1114 | ||
1115 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1116 | { | |
1117 | return __qeth_l2_set_offline(cgdev, 0); | |
1118 | } | |
1119 | ||
1120 | static int qeth_l2_recover(void *ptr) | |
1121 | { | |
1122 | struct qeth_card *card; | |
1123 | int rc = 0; | |
1124 | ||
1125 | card = (struct qeth_card *) ptr; | |
847a50fd | 1126 | QETH_CARD_TEXT(card, 2, "recover1"); |
4a71df50 FB |
1127 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1128 | return 0; | |
847a50fd | 1129 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
1130 | dev_warn(&card->gdev->dev, |
1131 | "A recovery process has been started for the device\n"); | |
4a71df50 FB |
1132 | __qeth_l2_set_offline(card->gdev, 1); |
1133 | rc = __qeth_l2_set_online(card->gdev, 1); | |
4a71df50 | 1134 | if (!rc) |
74eacdb9 FB |
1135 | dev_info(&card->gdev->dev, |
1136 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1137 | else { |
869da90b UB |
1138 | rtnl_lock(); |
1139 | dev_close(card->dev); | |
1140 | rtnl_unlock(); | |
74eacdb9 FB |
1141 | dev_warn(&card->gdev->dev, "The qeth device driver " |
1142 | "failed to recover an error on the device\n"); | |
28a7e4c9 | 1143 | } |
a1c3ed4c FB |
1144 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
1145 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
1146 | return 0; |
1147 | } | |
1148 | ||
1149 | static int __init qeth_l2_init(void) | |
1150 | { | |
74eacdb9 | 1151 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1152 | return 0; |
1153 | } | |
1154 | ||
1155 | static void __exit qeth_l2_exit(void) | |
1156 | { | |
74eacdb9 | 1157 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1158 | } |
1159 | ||
1160 | static void qeth_l2_shutdown(struct ccwgroup_device *gdev) | |
1161 | { | |
1162 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1163 | qeth_qdio_clear_card(card, 0); | |
1164 | qeth_clear_qdio_buffers(card); | |
1165 | } | |
1166 | ||
bbcfcdc8 FB |
1167 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
1168 | { | |
1169 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1170 | ||
1171 | if (card->dev) | |
1172 | netif_device_detach(card->dev); | |
1173 | qeth_set_allowed_threads(card, 0, 1); | |
1174 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
1175 | if (gdev->state == CCWGROUP_OFFLINE) | |
1176 | return 0; | |
1177 | if (card->state == CARD_STATE_UP) { | |
bbcfcdc8 FB |
1178 | __qeth_l2_set_offline(card->gdev, 1); |
1179 | } else | |
1180 | __qeth_l2_set_offline(card->gdev, 0); | |
1181 | return 0; | |
1182 | } | |
1183 | ||
1184 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
1185 | { | |
1186 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1187 | int rc = 0; | |
1188 | ||
1189 | if (gdev->state == CCWGROUP_OFFLINE) | |
1190 | goto out; | |
1191 | ||
1192 | if (card->state == CARD_STATE_RECOVER) { | |
1193 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1194 | if (rc) { | |
869da90b UB |
1195 | rtnl_lock(); |
1196 | dev_close(card->dev); | |
1197 | rtnl_unlock(); | |
bbcfcdc8 FB |
1198 | } |
1199 | } else | |
1200 | rc = __qeth_l2_set_online(card->gdev, 0); | |
1201 | out: | |
1202 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1203 | if (card->dev) | |
1204 | netif_device_attach(card->dev); | |
1205 | if (rc) | |
1206 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1207 | "failed to recover an error on the device\n"); | |
1208 | return rc; | |
1209 | } | |
1210 | ||
4a71df50 FB |
1211 | struct ccwgroup_driver qeth_l2_ccwgroup_driver = { |
1212 | .probe = qeth_l2_probe_device, | |
1213 | .remove = qeth_l2_remove_device, | |
1214 | .set_online = qeth_l2_set_online, | |
1215 | .set_offline = qeth_l2_set_offline, | |
1216 | .shutdown = qeth_l2_shutdown, | |
bbcfcdc8 FB |
1217 | .freeze = qeth_l2_pm_suspend, |
1218 | .thaw = qeth_l2_pm_resume, | |
1219 | .restore = qeth_l2_pm_resume, | |
4a71df50 FB |
1220 | }; |
1221 | EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver); | |
1222 | ||
1223 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1224 | struct qeth_cmd_buffer *iob) | |
1225 | { | |
1226 | unsigned long flags; | |
1227 | int rc = 0; | |
1228 | ||
847a50fd | 1229 | QETH_CARD_TEXT(card, 5, "osndctrd"); |
4a71df50 FB |
1230 | |
1231 | wait_event(card->wait_q, | |
1232 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1233 | qeth_prepare_control_data(card, len, iob); | |
847a50fd | 1234 | QETH_CARD_TEXT(card, 6, "osnoirqp"); |
4a71df50 FB |
1235 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
1236 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, | |
1237 | (addr_t) iob, 0, 0); | |
1238 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); | |
1239 | if (rc) { | |
14cc21b6 | 1240 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1241 | "ccw_device_start rc = %i\n", rc); |
847a50fd | 1242 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
1243 | qeth_release_buffer(iob->channel, iob); |
1244 | atomic_set(&card->write.irq_pending, 0); | |
1245 | wake_up(&card->wait_q); | |
1246 | } | |
1247 | return rc; | |
1248 | } | |
1249 | ||
1250 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1251 | struct qeth_cmd_buffer *iob, int data_len) | |
1252 | { | |
1253 | u16 s1, s2; | |
1254 | ||
847a50fd | 1255 | QETH_CARD_TEXT(card, 4, "osndipa"); |
4a71df50 FB |
1256 | |
1257 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1258 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1259 | s2 = (u16)data_len; | |
1260 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1261 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1262 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1263 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1264 | return qeth_osn_send_control_data(card, s1, iob); | |
1265 | } | |
1266 | ||
1267 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1268 | { | |
1269 | struct qeth_cmd_buffer *iob; | |
1270 | struct qeth_card *card; | |
1271 | int rc; | |
1272 | ||
4a71df50 FB |
1273 | if (!dev) |
1274 | return -ENODEV; | |
509e2562 | 1275 | card = dev->ml_priv; |
4a71df50 FB |
1276 | if (!card) |
1277 | return -ENODEV; | |
847a50fd | 1278 | QETH_CARD_TEXT(card, 2, "osnsdmc"); |
4a71df50 FB |
1279 | if ((card->state != CARD_STATE_UP) && |
1280 | (card->state != CARD_STATE_SOFTSETUP)) | |
1281 | return -ENODEV; | |
1282 | iob = qeth_wait_for_buffer(&card->write); | |
1283 | memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); | |
1284 | rc = qeth_osn_send_ipa_cmd(card, iob, data_len); | |
1285 | return rc; | |
1286 | } | |
1287 | EXPORT_SYMBOL(qeth_osn_assist); | |
1288 | ||
1289 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1290 | int (*assist_cb)(struct net_device *, void *), | |
1291 | int (*data_cb)(struct sk_buff *)) | |
1292 | { | |
1293 | struct qeth_card *card; | |
1294 | ||
4a71df50 FB |
1295 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1296 | if (*dev == NULL) | |
1297 | return -ENODEV; | |
509e2562 | 1298 | card = (*dev)->ml_priv; |
4a71df50 FB |
1299 | if (!card) |
1300 | return -ENODEV; | |
847a50fd | 1301 | QETH_CARD_TEXT(card, 2, "osnreg"); |
4a71df50 FB |
1302 | if ((assist_cb == NULL) || (data_cb == NULL)) |
1303 | return -EINVAL; | |
1304 | card->osn_info.assist_cb = assist_cb; | |
1305 | card->osn_info.data_cb = data_cb; | |
1306 | return 0; | |
1307 | } | |
1308 | EXPORT_SYMBOL(qeth_osn_register); | |
1309 | ||
1310 | void qeth_osn_deregister(struct net_device *dev) | |
1311 | { | |
1312 | struct qeth_card *card; | |
1313 | ||
4a71df50 FB |
1314 | if (!dev) |
1315 | return; | |
509e2562 | 1316 | card = dev->ml_priv; |
4a71df50 FB |
1317 | if (!card) |
1318 | return; | |
847a50fd | 1319 | QETH_CARD_TEXT(card, 2, "osndereg"); |
4a71df50 FB |
1320 | card->osn_info.assist_cb = NULL; |
1321 | card->osn_info.data_cb = NULL; | |
1322 | return; | |
1323 | } | |
1324 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1325 | ||
1326 | module_init(qeth_l2_init); | |
1327 | module_exit(qeth_l2_exit); | |
1328 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
1329 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
1330 | MODULE_LICENSE("GPL"); |