Commit | Line | Data |
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ab9953ff | 1 | // SPDX-License-Identifier: GPL-2.0 |
4a71df50 | 2 | /* |
bbcfcdc8 | 3 | * Copyright IBM Corp. 2007, 2009 |
4a71df50 FB |
4 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
5 | * Frank Pavlic <fpavlic@de.ibm.com>, | |
6 | * Thomas Spatzier <tspat@de.ibm.com>, | |
7 | * Frank Blaschka <frank.blaschka@de.ibm.com> | |
8 | */ | |
9 | ||
74eacdb9 FB |
10 | #define KMSG_COMPONENT "qeth" |
11 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
12 | ||
4a71df50 FB |
13 | #include <linux/module.h> |
14 | #include <linux/moduleparam.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/kernel.h> | |
5a0e3ad6 | 18 | #include <linux/slab.h> |
4a71df50 | 19 | #include <linux/etherdevice.h> |
4a71df50 | 20 | #include <linux/ip.h> |
ccffad25 | 21 | #include <linux/list.h> |
fe5c8028 LD |
22 | #include <linux/hash.h> |
23 | #include <linux/hashtable.h> | |
ec61bd2f | 24 | #include <asm/setup.h> |
4a71df50 | 25 | #include "qeth_core.h" |
b4d72c08 | 26 | #include "qeth_l2.h" |
4a71df50 | 27 | |
4a71df50 FB |
28 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
29 | static int qeth_l2_stop(struct net_device *); | |
fe5c8028 | 30 | static void qeth_l2_set_rx_mode(struct net_device *); |
c044dc21 EC |
31 | static void qeth_bridgeport_query_support(struct qeth_card *card); |
32 | static void qeth_bridge_state_change(struct qeth_card *card, | |
33 | struct qeth_ipa_cmd *cmd); | |
34 | static void qeth_bridge_host_event(struct qeth_card *card, | |
35 | struct qeth_ipa_cmd *cmd); | |
caa1f0b1 | 36 | static void qeth_l2_vnicc_set_defaults(struct qeth_card *card); |
a45b3faf | 37 | static void qeth_l2_vnicc_init(struct qeth_card *card); |
349d13d5 HW |
38 | static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, |
39 | u32 *timeout); | |
4a71df50 | 40 | |
4a71df50 FB |
41 | static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) |
42 | { | |
43 | struct qeth_card *card; | |
44 | struct net_device *ndev; | |
f06f6f32 | 45 | __u16 temp_dev_no; |
4a71df50 | 46 | unsigned long flags; |
f06f6f32 | 47 | struct ccw_dev_id read_devid; |
4a71df50 FB |
48 | |
49 | ndev = NULL; | |
50 | memcpy(&temp_dev_no, read_dev_no, 2); | |
51 | read_lock_irqsave(&qeth_core_card_list.rwlock, flags); | |
52 | list_for_each_entry(card, &qeth_core_card_list.list, list) { | |
f06f6f32 CH |
53 | ccw_device_get_id(CARD_RDEV(card), &read_devid); |
54 | if (read_devid.devno == temp_dev_no) { | |
4a71df50 FB |
55 | ndev = card->dev; |
56 | break; | |
57 | } | |
58 | } | |
59 | read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); | |
60 | return ndev; | |
61 | } | |
62 | ||
2aa48671 | 63 | static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode) |
4a71df50 | 64 | { |
efbbc1d5 | 65 | int rc; |
4a71df50 | 66 | |
efbbc1d5 | 67 | if (retcode) |
1aec42bc | 68 | QETH_CARD_TEXT_(card, 2, "err%04x", retcode); |
efbbc1d5 EC |
69 | switch (retcode) { |
70 | case IPA_RC_SUCCESS: | |
71 | rc = 0; | |
72 | break; | |
73 | case IPA_RC_L2_UNSUPPORTED_CMD: | |
ffb95251 | 74 | rc = -EOPNOTSUPP; |
efbbc1d5 EC |
75 | break; |
76 | case IPA_RC_L2_ADDR_TABLE_FULL: | |
77 | rc = -ENOSPC; | |
78 | break; | |
79 | case IPA_RC_L2_DUP_MAC: | |
80 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
81 | rc = -EEXIST; | |
82 | break; | |
83 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
84 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
85 | rc = -EPERM; | |
86 | break; | |
87 | case IPA_RC_L2_MAC_NOT_FOUND: | |
88 | rc = -ENOENT; | |
89 | break; | |
1aec42bc TR |
90 | case -ENOMEM: |
91 | rc = -ENOMEM; | |
92 | break; | |
efbbc1d5 EC |
93 | default: |
94 | rc = -EIO; | |
95 | break; | |
4a71df50 | 96 | } |
efbbc1d5 | 97 | return rc; |
4a71df50 FB |
98 | } |
99 | ||
ac988d78 JW |
100 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, |
101 | enum qeth_ipa_cmds ipacmd) | |
102 | { | |
103 | struct qeth_ipa_cmd *cmd; | |
104 | struct qeth_cmd_buffer *iob; | |
105 | ||
106 | QETH_CARD_TEXT(card, 2, "L2sdmac"); | |
107 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); | |
108 | if (!iob) | |
109 | return -ENOMEM; | |
ff5caa7a | 110 | cmd = __ipa_cmd(iob); |
99f0b85d JW |
111 | cmd->data.setdelmac.mac_length = ETH_ALEN; |
112 | ether_addr_copy(cmd->data.setdelmac.mac, mac); | |
2aa48671 JW |
113 | return qeth_setdelmac_makerc(card, qeth_send_ipa_cmd(card, iob, |
114 | NULL, NULL)); | |
ac988d78 JW |
115 | } |
116 | ||
117 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
118 | { | |
119 | int rc; | |
120 | ||
121 | QETH_CARD_TEXT(card, 2, "L2Setmac"); | |
122 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC); | |
123 | if (rc == 0) { | |
ac988d78 | 124 | dev_info(&card->gdev->dev, |
bcacfcbc JW |
125 | "MAC address %pM successfully registered on device %s\n", |
126 | mac, card->dev->name); | |
ac988d78 | 127 | } else { |
ac988d78 JW |
128 | switch (rc) { |
129 | case -EEXIST: | |
130 | dev_warn(&card->gdev->dev, | |
131 | "MAC address %pM already exists\n", mac); | |
132 | break; | |
133 | case -EPERM: | |
134 | dev_warn(&card->gdev->dev, | |
135 | "MAC address %pM is not authorized\n", mac); | |
136 | break; | |
137 | } | |
138 | } | |
139 | return rc; | |
140 | } | |
141 | ||
8174aa8a | 142 | static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac) |
4a71df50 | 143 | { |
8174aa8a JW |
144 | enum qeth_ipa_cmds cmd = is_multicast_ether_addr_64bits(mac) ? |
145 | IPA_CMD_SETGMAC : IPA_CMD_SETVMAC; | |
efbbc1d5 | 146 | int rc; |
4a71df50 | 147 | |
8174aa8a JW |
148 | QETH_CARD_TEXT(card, 2, "L2Wmac"); |
149 | rc = qeth_l2_send_setdelmac(card, mac, cmd); | |
efbbc1d5 | 150 | if (rc == -EEXIST) |
8174aa8a JW |
151 | QETH_DBF_MESSAGE(2, "MAC %pM already registered on %s\n", |
152 | mac, QETH_CARD_IFNAME(card)); | |
efbbc1d5 | 153 | else if (rc) |
8174aa8a JW |
154 | QETH_DBF_MESSAGE(2, "Failed to register MAC %pM on %s: %d\n", |
155 | mac, QETH_CARD_IFNAME(card), rc); | |
efbbc1d5 | 156 | return rc; |
4a71df50 FB |
157 | } |
158 | ||
8174aa8a | 159 | static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac) |
4a71df50 | 160 | { |
8174aa8a JW |
161 | enum qeth_ipa_cmds cmd = is_multicast_ether_addr_64bits(mac) ? |
162 | IPA_CMD_DELGMAC : IPA_CMD_DELVMAC; | |
efbbc1d5 EC |
163 | int rc; |
164 | ||
8174aa8a JW |
165 | QETH_CARD_TEXT(card, 2, "L2Rmac"); |
166 | rc = qeth_l2_send_setdelmac(card, mac, cmd); | |
efbbc1d5 | 167 | if (rc) |
8174aa8a JW |
168 | QETH_DBF_MESSAGE(2, "Failed to delete MAC %pM on %s: %d\n", |
169 | mac, QETH_CARD_IFNAME(card), rc); | |
efbbc1d5 | 170 | return rc; |
4a71df50 FB |
171 | } |
172 | ||
c07cbf2e | 173 | static void qeth_l2_del_all_macs(struct qeth_card *card) |
4a71df50 | 174 | { |
fe5c8028 LD |
175 | struct qeth_mac *mac; |
176 | struct hlist_node *tmp; | |
177 | int i; | |
4a71df50 FB |
178 | |
179 | spin_lock_bh(&card->mclock); | |
fe5c8028 | 180 | hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { |
fe5c8028 LD |
181 | hash_del(&mac->hnode); |
182 | kfree(mac); | |
4a71df50 FB |
183 | } |
184 | spin_unlock_bh(&card->mclock); | |
185 | } | |
186 | ||
cef6ff22 | 187 | static int qeth_l2_get_cast_type(struct qeth_card *card, struct sk_buff *skb) |
4a71df50 | 188 | { |
ce73e10e KDW |
189 | if (card->info.type == QETH_CARD_TYPE_OSN) |
190 | return RTN_UNSPEC; | |
191 | if (is_broadcast_ether_addr(skb->data)) | |
192 | return RTN_BROADCAST; | |
193 | if (is_multicast_ether_addr(skb->data)) | |
194 | return RTN_MULTICAST; | |
195 | return RTN_UNSPEC; | |
4a71df50 FB |
196 | } |
197 | ||
cef6ff22 JW |
198 | static void qeth_l2_hdr_csum(struct qeth_card *card, struct qeth_hdr *hdr, |
199 | struct sk_buff *skb) | |
4d7def2a TR |
200 | { |
201 | struct iphdr *iph = ip_hdr(skb); | |
202 | ||
203 | /* tcph->check contains already the pseudo hdr checksum | |
204 | * so just set the header flags | |
205 | */ | |
206 | if (iph->protocol == IPPROTO_UDP) | |
207 | hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_UDP; | |
208 | hdr->hdr.l2.flags[1] |= QETH_HDR_EXT_CSUM_TRANSP_REQ | | |
209 | QETH_HDR_EXT_CSUM_HDR_REQ; | |
210 | iph->check = 0; | |
211 | if (card->options.performance_stats) | |
212 | card->perf_stats.tx_csum++; | |
213 | } | |
214 | ||
ae79fe03 JW |
215 | static void qeth_l2_fill_header(struct qeth_hdr *hdr, struct sk_buff *skb, |
216 | int cast_type, unsigned int data_len) | |
4a71df50 | 217 | { |
683d718a | 218 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
4a71df50 FB |
219 | |
220 | memset(hdr, 0, sizeof(struct qeth_hdr)); | |
221 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
ae79fe03 | 222 | hdr->hdr.l2.pkt_length = data_len; |
4a71df50 FB |
223 | |
224 | /* set byte byte 3 to casting flags */ | |
225 | if (cast_type == RTN_MULTICAST) | |
226 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
227 | else if (cast_type == RTN_BROADCAST) | |
228 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
229 | else | |
ce73e10e | 230 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
4a71df50 | 231 | |
4a71df50 FB |
232 | /* VSWITCH relies on the VLAN |
233 | * information to be present in | |
234 | * the QDIO header */ | |
235 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
236 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
237 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
238 | } | |
239 | } | |
240 | ||
2aa48671 JW |
241 | static int qeth_setdelvlan_makerc(struct qeth_card *card, int retcode) |
242 | { | |
243 | if (retcode) | |
244 | QETH_CARD_TEXT_(card, 2, "err%04x", retcode); | |
245 | ||
246 | switch (retcode) { | |
247 | case IPA_RC_SUCCESS: | |
248 | return 0; | |
249 | case IPA_RC_L2_INVALID_VLAN_ID: | |
250 | return -EINVAL; | |
251 | case IPA_RC_L2_DUP_VLAN_ID: | |
252 | return -EEXIST; | |
253 | case IPA_RC_L2_VLAN_ID_NOT_FOUND: | |
254 | return -ENOENT; | |
255 | case IPA_RC_L2_VLAN_ID_NOT_ALLOWED: | |
256 | return -EPERM; | |
257 | case -ENOMEM: | |
258 | return -ENOMEM; | |
259 | default: | |
260 | return -EIO; | |
261 | } | |
262 | } | |
263 | ||
4a71df50 | 264 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, |
2aa48671 JW |
265 | struct qeth_reply *reply, |
266 | unsigned long data) | |
4a71df50 | 267 | { |
2aa48671 | 268 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
4a71df50 | 269 | |
847a50fd | 270 | QETH_CARD_TEXT(card, 2, "L2sdvcb"); |
4a71df50 | 271 | if (cmd->hdr.return_code) { |
2aa48671 JW |
272 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x.\n", |
273 | cmd->data.setdelvlan.vlan_id, | |
274 | QETH_CARD_IFNAME(card), cmd->hdr.return_code); | |
847a50fd CO |
275 | QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); |
276 | QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); | |
4a71df50 FB |
277 | } |
278 | return 0; | |
279 | } | |
280 | ||
281 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
2aa48671 | 282 | enum qeth_ipa_cmds ipacmd) |
4a71df50 FB |
283 | { |
284 | struct qeth_ipa_cmd *cmd; | |
285 | struct qeth_cmd_buffer *iob; | |
286 | ||
847a50fd | 287 | QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); |
4a71df50 | 288 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
1aec42bc TR |
289 | if (!iob) |
290 | return -ENOMEM; | |
ff5caa7a | 291 | cmd = __ipa_cmd(iob); |
4a71df50 | 292 | cmd->data.setdelvlan.vlan_id = i; |
2aa48671 JW |
293 | return qeth_setdelvlan_makerc(card, qeth_send_ipa_cmd(card, iob, |
294 | qeth_l2_send_setdelvlan_cb, NULL)); | |
4a71df50 FB |
295 | } |
296 | ||
70919e23 | 297 | static void qeth_l2_process_vlans(struct qeth_card *card) |
4a71df50 FB |
298 | { |
299 | struct qeth_vlan_vid *id; | |
847a50fd | 300 | QETH_CARD_TEXT(card, 3, "L2prcvln"); |
4a71df50 FB |
301 | spin_lock_bh(&card->vlanlock); |
302 | list_for_each_entry(id, &card->vid_list, list) { | |
70919e23 | 303 | qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); |
4a71df50 FB |
304 | } |
305 | spin_unlock_bh(&card->vlanlock); | |
306 | } | |
307 | ||
80d5c368 PM |
308 | static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, |
309 | __be16 proto, u16 vid) | |
4a71df50 | 310 | { |
509e2562 | 311 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 312 | struct qeth_vlan_vid *id; |
1aec42bc | 313 | int rc; |
4a71df50 | 314 | |
847a50fd | 315 | QETH_CARD_TEXT_(card, 4, "aid:%d", vid); |
10651db7 | 316 | if (!vid) |
8e586137 | 317 | return 0; |
8e98ac48 | 318 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 319 | QETH_CARD_TEXT(card, 3, "aidREC"); |
8e586137 | 320 | return 0; |
8e98ac48 | 321 | } |
4a71df50 FB |
322 | id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); |
323 | if (id) { | |
324 | id->vid = vid; | |
1aec42bc TR |
325 | rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); |
326 | if (rc) { | |
327 | kfree(id); | |
328 | return rc; | |
329 | } | |
4a71df50 FB |
330 | spin_lock_bh(&card->vlanlock); |
331 | list_add_tail(&id->list, &card->vid_list); | |
332 | spin_unlock_bh(&card->vlanlock); | |
8e586137 JP |
333 | } else { |
334 | return -ENOMEM; | |
4a71df50 | 335 | } |
8e586137 | 336 | return 0; |
4a71df50 FB |
337 | } |
338 | ||
80d5c368 PM |
339 | static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, |
340 | __be16 proto, u16 vid) | |
4a71df50 FB |
341 | { |
342 | struct qeth_vlan_vid *id, *tmpid = NULL; | |
509e2562 | 343 | struct qeth_card *card = dev->ml_priv; |
1aec42bc | 344 | int rc = 0; |
4a71df50 | 345 | |
847a50fd | 346 | QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
8e98ac48 | 347 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 348 | QETH_CARD_TEXT(card, 3, "kidREC"); |
8e586137 | 349 | return 0; |
8e98ac48 | 350 | } |
4a71df50 FB |
351 | spin_lock_bh(&card->vlanlock); |
352 | list_for_each_entry(id, &card->vid_list, list) { | |
353 | if (id->vid == vid) { | |
354 | list_del(&id->list); | |
355 | tmpid = id; | |
356 | break; | |
357 | } | |
358 | } | |
359 | spin_unlock_bh(&card->vlanlock); | |
360 | if (tmpid) { | |
1aec42bc | 361 | rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); |
4a71df50 FB |
362 | kfree(tmpid); |
363 | } | |
fe5c8028 | 364 | qeth_l2_set_rx_mode(card->dev); |
1aec42bc | 365 | return rc; |
4a71df50 FB |
366 | } |
367 | ||
b2f4de8b | 368 | static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) |
4a71df50 | 369 | { |
d11ba0c4 PT |
370 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
371 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
372 | |
373 | qeth_set_allowed_threads(card, 0, 1); | |
4a71df50 FB |
374 | if (card->read.state == CH_STATE_UP && |
375 | card->write.state == CH_STATE_UP && | |
376 | (card->state == CARD_STATE_UP)) { | |
377 | if (recovery_mode && | |
378 | card->info.type != QETH_CARD_TYPE_OSN) { | |
379 | qeth_l2_stop(card->dev); | |
380 | } else { | |
381 | rtnl_lock(); | |
382 | dev_close(card->dev); | |
383 | rtnl_unlock(); | |
384 | } | |
70919e23 | 385 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
4a71df50 FB |
386 | card->state = CARD_STATE_SOFTSETUP; |
387 | } | |
388 | if (card->state == CARD_STATE_SOFTSETUP) { | |
c07cbf2e | 389 | qeth_l2_del_all_macs(card); |
4a71df50 FB |
390 | qeth_clear_ipacmd_list(card); |
391 | card->state = CARD_STATE_HARDSETUP; | |
392 | } | |
393 | if (card->state == CARD_STATE_HARDSETUP) { | |
394 | qeth_qdio_clear_card(card, 0); | |
395 | qeth_clear_qdio_buffers(card); | |
396 | qeth_clear_working_pool_list(card); | |
397 | card->state = CARD_STATE_DOWN; | |
398 | } | |
399 | if (card->state == CARD_STATE_DOWN) { | |
400 | qeth_clear_cmd_buffers(&card->read); | |
401 | qeth_clear_cmd_buffers(&card->write); | |
402 | } | |
4a71df50 FB |
403 | } |
404 | ||
a1c3ed4c FB |
405 | static int qeth_l2_process_inbound_buffer(struct qeth_card *card, |
406 | int budget, int *done) | |
4a71df50 | 407 | { |
a1c3ed4c | 408 | int work_done = 0; |
4a71df50 FB |
409 | struct sk_buff *skb; |
410 | struct qeth_hdr *hdr; | |
4a71df50 FB |
411 | unsigned int len; |
412 | ||
a1c3ed4c | 413 | *done = 0; |
18af5c17 | 414 | WARN_ON_ONCE(!budget); |
a1c3ed4c FB |
415 | while (budget) { |
416 | skb = qeth_core_get_next_skb(card, | |
b3332930 | 417 | &card->qdio.in_q->bufs[card->rx.b_index], |
a1c3ed4c FB |
418 | &card->rx.b_element, &card->rx.e_offset, &hdr); |
419 | if (!skb) { | |
420 | *done = 1; | |
421 | break; | |
4a71df50 | 422 | } |
4a71df50 FB |
423 | switch (hdr->hdr.l2.id) { |
424 | case QETH_HEADER_TYPE_LAYER2: | |
4a71df50 | 425 | skb->protocol = eth_type_trans(skb, skb->dev); |
4d7def2a TR |
426 | if ((card->dev->features & NETIF_F_RXCSUM) |
427 | && ((hdr->hdr.l2.flags[1] & | |
428 | (QETH_HDR_EXT_CSUM_HDR_REQ | | |
429 | QETH_HDR_EXT_CSUM_TRANSP_REQ)) == | |
430 | (QETH_HDR_EXT_CSUM_HDR_REQ | | |
431 | QETH_HDR_EXT_CSUM_TRANSP_REQ))) | |
432 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
433 | else | |
434 | skb->ip_summed = CHECKSUM_NONE; | |
12883725 UB |
435 | if (skb->protocol == htons(ETH_P_802_2)) |
436 | *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; | |
4a71df50 | 437 | len = skb->len; |
9abfa8cb | 438 | napi_gro_receive(&card->napi, skb); |
4a71df50 FB |
439 | break; |
440 | case QETH_HEADER_TYPE_OSN: | |
2d488c2f UB |
441 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
442 | skb_push(skb, sizeof(struct qeth_hdr)); | |
443 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 444 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
445 | len = skb->len; |
446 | card->osn_info.data_cb(skb); | |
447 | break; | |
448 | } | |
449 | /* else unknown */ | |
4a71df50 FB |
450 | default: |
451 | dev_kfree_skb_any(skb); | |
847a50fd | 452 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
d11ba0c4 | 453 | QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); |
4a71df50 FB |
454 | continue; |
455 | } | |
a1c3ed4c FB |
456 | work_done++; |
457 | budget--; | |
4a71df50 FB |
458 | card->stats.rx_packets++; |
459 | card->stats.rx_bytes += len; | |
460 | } | |
a1c3ed4c FB |
461 | return work_done; |
462 | } | |
463 | ||
4a71df50 FB |
464 | static int qeth_l2_request_initial_mac(struct qeth_card *card) |
465 | { | |
466 | int rc = 0; | |
467 | char vendor_pre[] = {0x02, 0x00, 0x00}; | |
468 | ||
ec61bd2f | 469 | QETH_DBF_TEXT(SETUP, 2, "l2reqmac"); |
d11ba0c4 | 470 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); |
4a71df50 | 471 | |
ec61bd2f JW |
472 | if (MACHINE_IS_VM) { |
473 | rc = qeth_vm_request_mac(card); | |
474 | if (!rc) | |
475 | goto out; | |
476 | QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %s: x%x\n", | |
477 | CARD_BUS_ID(card), rc); | |
478 | QETH_DBF_TEXT_(SETUP, 2, "err%04x", rc); | |
479 | /* fall back to alternative mechanism: */ | |
480 | } | |
481 | ||
5113fec0 UB |
482 | if (card->info.type == QETH_CARD_TYPE_IQD || |
483 | card->info.type == QETH_CARD_TYPE_OSM || | |
484 | card->info.type == QETH_CARD_TYPE_OSX || | |
485 | card->info.guestlan) { | |
4a71df50 FB |
486 | rc = qeth_setadpparms_change_macaddr(card); |
487 | if (rc) { | |
14cc21b6 FB |
488 | QETH_DBF_MESSAGE(2, "couldn't get MAC address on " |
489 | "device %s: x%x\n", CARD_BUS_ID(card), rc); | |
1aec42bc | 490 | QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc); |
4a71df50 FB |
491 | return rc; |
492 | } | |
4a71df50 | 493 | } else { |
1833611d | 494 | eth_random_addr(card->dev->dev_addr); |
4a71df50 FB |
495 | memcpy(card->dev->dev_addr, vendor_pre, 3); |
496 | } | |
ec61bd2f JW |
497 | out: |
498 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, card->dev->addr_len); | |
4a71df50 FB |
499 | return 0; |
500 | } | |
501 | ||
502 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) | |
503 | { | |
504 | struct sockaddr *addr = p; | |
509e2562 | 505 | struct qeth_card *card = dev->ml_priv; |
bcacfcbc | 506 | u8 old_addr[ETH_ALEN]; |
4a71df50 FB |
507 | int rc = 0; |
508 | ||
847a50fd | 509 | QETH_CARD_TEXT(card, 3, "setmac"); |
4a71df50 | 510 | |
5113fec0 UB |
511 | if (card->info.type == QETH_CARD_TYPE_OSN || |
512 | card->info.type == QETH_CARD_TYPE_OSM || | |
513 | card->info.type == QETH_CARD_TYPE_OSX) { | |
847a50fd | 514 | QETH_CARD_TEXT(card, 3, "setmcTYP"); |
4a71df50 FB |
515 | return -EOPNOTSUPP; |
516 | } | |
99f0b85d | 517 | QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN); |
bcacfcbc JW |
518 | if (!is_valid_ether_addr(addr->sa_data)) |
519 | return -EADDRNOTAVAIL; | |
520 | ||
8e98ac48 | 521 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { |
847a50fd | 522 | QETH_CARD_TEXT(card, 3, "setmcREC"); |
8e98ac48 UB |
523 | return -ERESTARTSYS; |
524 | } | |
bcacfcbc JW |
525 | |
526 | if (!qeth_card_hw_is_reachable(card)) { | |
527 | ether_addr_copy(dev->dev_addr, addr->sa_data); | |
528 | return 0; | |
529 | } | |
530 | ||
531 | /* don't register the same address twice */ | |
532 | if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) && | |
533 | (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) | |
534 | return 0; | |
535 | ||
536 | /* add the new address, switch over, drop the old */ | |
537 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
538 | if (rc) | |
539 | return rc; | |
540 | ether_addr_copy(old_addr, dev->dev_addr); | |
541 | ether_addr_copy(dev->dev_addr, addr->sa_data); | |
542 | ||
543 | if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED) | |
544 | qeth_l2_remove_mac(card, old_addr); | |
545 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
546 | return 0; | |
4a71df50 FB |
547 | } |
548 | ||
0db587b0 EC |
549 | static void qeth_promisc_to_bridge(struct qeth_card *card) |
550 | { | |
551 | struct net_device *dev = card->dev; | |
552 | enum qeth_ipa_promisc_modes promisc_mode; | |
553 | int role; | |
554 | int rc; | |
555 | ||
556 | QETH_CARD_TEXT(card, 3, "pmisc2br"); | |
557 | ||
558 | if (!card->options.sbp.reflect_promisc) | |
559 | return; | |
560 | promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON | |
561 | : SET_PROMISC_MODE_OFF; | |
562 | if (promisc_mode == card->info.promisc_mode) | |
563 | return; | |
564 | ||
565 | if (promisc_mode == SET_PROMISC_MODE_ON) { | |
566 | if (card->options.sbp.reflect_promisc_primary) | |
567 | role = QETH_SBP_ROLE_PRIMARY; | |
568 | else | |
569 | role = QETH_SBP_ROLE_SECONDARY; | |
570 | } else | |
571 | role = QETH_SBP_ROLE_NONE; | |
572 | ||
573 | rc = qeth_bridgeport_setrole(card, role); | |
574 | QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x", | |
575 | (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc); | |
576 | if (!rc) { | |
577 | card->options.sbp.role = role; | |
578 | card->info.promisc_mode = promisc_mode; | |
579 | } | |
fe5c8028 LD |
580 | |
581 | } | |
582 | /* New MAC address is added to the hash table and marked to be written on card | |
583 | * only if there is not in the hash table storage already | |
584 | * | |
585 | */ | |
4641b027 | 586 | static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha) |
fe5c8028 | 587 | { |
cef6ff22 | 588 | u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2])); |
fe5c8028 LD |
589 | struct qeth_mac *mac; |
590 | ||
cef6ff22 | 591 | hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) { |
99f0b85d | 592 | if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) { |
5f78e29c | 593 | mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING; |
fe5c8028 LD |
594 | return; |
595 | } | |
596 | } | |
597 | ||
598 | mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC); | |
fe5c8028 LD |
599 | if (!mac) |
600 | return; | |
601 | ||
99f0b85d | 602 | ether_addr_copy(mac->mac_addr, ha->addr); |
5f78e29c | 603 | mac->disp_flag = QETH_DISP_ADDR_ADD; |
fe5c8028 | 604 | |
cef6ff22 | 605 | hash_add(card->mac_htable, &mac->hnode, mac_hash); |
0db587b0 EC |
606 | } |
607 | ||
fe5c8028 | 608 | static void qeth_l2_set_rx_mode(struct net_device *dev) |
4a71df50 | 609 | { |
509e2562 | 610 | struct qeth_card *card = dev->ml_priv; |
ccffad25 | 611 | struct netdev_hw_addr *ha; |
fe5c8028 LD |
612 | struct qeth_mac *mac; |
613 | struct hlist_node *tmp; | |
614 | int i; | |
615 | int rc; | |
4a71df50 FB |
616 | |
617 | if (card->info.type == QETH_CARD_TYPE_OSN) | |
fe5c8028 | 618 | return; |
4a71df50 | 619 | |
847a50fd | 620 | QETH_CARD_TEXT(card, 3, "setmulti"); |
8e98ac48 UB |
621 | if (qeth_threads_running(card, QETH_RECOVER_THREAD) && |
622 | (card->state != CARD_STATE_UP)) | |
623 | return; | |
fe5c8028 | 624 | |
4a71df50 | 625 | spin_lock_bh(&card->mclock); |
fe5c8028 | 626 | |
22bedad3 | 627 | netdev_for_each_mc_addr(ha, dev) |
4641b027 | 628 | qeth_l2_add_mac(card, ha); |
32e7bfc4 | 629 | netdev_for_each_uc_addr(ha, dev) |
4641b027 | 630 | qeth_l2_add_mac(card, ha); |
fe5c8028 LD |
631 | |
632 | hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { | |
00c163f1 JW |
633 | switch (mac->disp_flag) { |
634 | case QETH_DISP_ADDR_DELETE: | |
8174aa8a | 635 | qeth_l2_remove_mac(card, mac->mac_addr); |
fe5c8028 LD |
636 | hash_del(&mac->hnode); |
637 | kfree(mac); | |
00c163f1 JW |
638 | break; |
639 | case QETH_DISP_ADDR_ADD: | |
8174aa8a | 640 | rc = qeth_l2_write_mac(card, mac->mac_addr); |
fe5c8028 LD |
641 | if (rc) { |
642 | hash_del(&mac->hnode); | |
643 | kfree(mac); | |
00c163f1 JW |
644 | break; |
645 | } | |
646 | /* fall through */ | |
647 | default: | |
648 | /* for next call to set_rx_mode(): */ | |
5f78e29c | 649 | mac->disp_flag = QETH_DISP_ADDR_DELETE; |
00c163f1 | 650 | } |
fe5c8028 | 651 | } |
7db2266a | 652 | |
4a71df50 | 653 | spin_unlock_bh(&card->mclock); |
fe5c8028 | 654 | |
0db587b0 EC |
655 | if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) |
656 | qeth_setadp_promisc_mode(card); | |
657 | else | |
658 | qeth_promisc_to_bridge(card); | |
4a71df50 FB |
659 | } |
660 | ||
7286384b JW |
661 | static int qeth_l2_xmit_iqd(struct qeth_card *card, struct sk_buff *skb, |
662 | struct qeth_qdio_out_q *queue, int cast_type) | |
4a71df50 | 663 | { |
7286384b JW |
664 | unsigned int data_offset = ETH_HLEN; |
665 | struct qeth_hdr *hdr; | |
4a71df50 | 666 | int rc; |
4a71df50 | 667 | |
7286384b JW |
668 | hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); |
669 | if (!hdr) | |
670 | return -ENOMEM; | |
ae79fe03 | 671 | qeth_l2_fill_header(hdr, skb, cast_type, skb->len); |
7286384b JW |
672 | skb_copy_from_linear_data(skb, ((char *)hdr) + sizeof(*hdr), |
673 | data_offset); | |
290b8348 | 674 | |
7286384b JW |
675 | if (!qeth_get_elements_no(card, skb, 1, data_offset)) { |
676 | rc = -E2BIG; | |
677 | goto out; | |
4a71df50 | 678 | } |
7c2e9ba3 | 679 | rc = qeth_do_send_packet_fast(queue, skb, hdr, data_offset, |
f1588177 | 680 | sizeof(*hdr) + data_offset); |
7286384b JW |
681 | out: |
682 | if (rc) | |
683 | kmem_cache_free(qeth_core_header_cache, hdr); | |
684 | return rc; | |
685 | } | |
4a71df50 | 686 | |
7286384b JW |
687 | static int qeth_l2_xmit_osa(struct qeth_card *card, struct sk_buff *skb, |
688 | struct qeth_qdio_out_q *queue, int cast_type) | |
689 | { | |
0d6f02d3 | 690 | int push_len = sizeof(struct qeth_hdr); |
7286384b | 691 | unsigned int elements, nr_frags; |
0d6f02d3 JW |
692 | unsigned int hdr_elements = 0; |
693 | struct qeth_hdr *hdr = NULL; | |
694 | unsigned int hd_len = 0; | |
7286384b | 695 | int rc; |
4a71df50 | 696 | |
d52aec97 EC |
697 | /* fix hardware limitation: as long as we do not have sbal |
698 | * chaining we can not send long frag lists | |
699 | */ | |
7286384b JW |
700 | if (!qeth_get_elements_no(card, skb, 0, 0)) { |
701 | rc = skb_linearize(skb); | |
6059c905 EC |
702 | |
703 | if (card->options.performance_stats) { | |
7286384b | 704 | if (rc) |
6059c905 EC |
705 | card->perf_stats.tx_linfail++; |
706 | else | |
707 | card->perf_stats.tx_lin++; | |
708 | } | |
7286384b JW |
709 | if (rc) |
710 | return rc; | |
d52aec97 | 711 | } |
7286384b | 712 | nr_frags = skb_shinfo(skb)->nr_frags; |
d52aec97 | 713 | |
0d6f02d3 JW |
714 | rc = skb_cow_head(skb, push_len); |
715 | if (rc) | |
716 | return rc; | |
717 | push_len = qeth_push_hdr(skb, &hdr, push_len); | |
718 | if (push_len < 0) | |
719 | return push_len; | |
720 | if (!push_len) { | |
721 | /* hdr was allocated from cache */ | |
722 | hd_len = sizeof(*hdr); | |
723 | hdr_elements = 1; | |
724 | } | |
725 | qeth_l2_fill_header(hdr, skb, cast_type, skb->len - push_len); | |
726 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
727 | qeth_l2_hdr_csum(card, hdr, skb); | |
4a71df50 | 728 | |
0d6f02d3 | 729 | elements = qeth_get_elements_no(card, skb, hdr_elements, 0); |
64ef8957 | 730 | if (!elements) { |
7286384b JW |
731 | rc = -E2BIG; |
732 | goto out; | |
f61a0d05 | 733 | } |
0d6f02d3 JW |
734 | elements += hdr_elements; |
735 | ||
736 | /* TODO: remove the skb_orphan() once TX completion is fast enough */ | |
737 | skb_orphan(skb); | |
738 | rc = qeth_do_send_packet(card, queue, skb, hdr, 0, hd_len, elements); | |
7286384b | 739 | out: |
4a71df50 | 740 | if (!rc) { |
886e1974 JW |
741 | if (card->options.performance_stats && nr_frags) { |
742 | card->perf_stats.sg_skbs_sent++; | |
743 | /* nr_frags + skb->data */ | |
744 | card->perf_stats.sg_frags_sent += nr_frags + 1; | |
d52aec97 | 745 | } |
4a71df50 | 746 | } else { |
0d6f02d3 JW |
747 | if (hd_len) |
748 | kmem_cache_free(qeth_core_header_cache, hdr); | |
749 | if (rc == -EBUSY) | |
750 | /* roll back to ETH header */ | |
751 | skb_pull(skb, push_len); | |
7286384b JW |
752 | } |
753 | return rc; | |
754 | } | |
683d718a | 755 | |
7286384b JW |
756 | static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb, |
757 | struct qeth_qdio_out_q *queue) | |
758 | { | |
759 | unsigned int elements; | |
760 | struct qeth_hdr *hdr; | |
761 | ||
762 | if (skb->protocol == htons(ETH_P_IPV6)) | |
763 | return -EPROTONOSUPPORT; | |
764 | ||
765 | hdr = (struct qeth_hdr *)skb->data; | |
766 | elements = qeth_get_elements_no(card, skb, 0, 0); | |
767 | if (!elements) | |
768 | return -E2BIG; | |
769 | if (qeth_hdr_chk_and_bounce(skb, &hdr, sizeof(*hdr))) | |
770 | return -EINVAL; | |
9c3bfda9 | 771 | return qeth_do_send_packet(card, queue, skb, hdr, 0, 0, elements); |
7286384b JW |
772 | } |
773 | ||
774 | static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, | |
775 | struct net_device *dev) | |
776 | { | |
777 | struct qeth_card *card = dev->ml_priv; | |
778 | int cast_type = qeth_l2_get_cast_type(card, skb); | |
779 | struct qeth_qdio_out_q *queue; | |
780 | int tx_bytes = skb->len; | |
781 | int rc; | |
782 | ||
783 | if (card->qdio.do_prio_queueing || (cast_type && | |
784 | card->info.is_multicast_different)) | |
785 | queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb, | |
786 | qeth_get_ip_version(skb), cast_type)]; | |
787 | else | |
788 | queue = card->qdio.out_qs[card->qdio.default_out_queue]; | |
789 | ||
790 | if ((card->state != CARD_STATE_UP) || !card->lan_online) { | |
791 | card->stats.tx_carrier_errors++; | |
792 | goto tx_drop; | |
4a71df50 FB |
793 | } |
794 | ||
7286384b JW |
795 | if (card->options.performance_stats) { |
796 | card->perf_stats.outbound_cnt++; | |
797 | card->perf_stats.outbound_start_time = qeth_get_micros(); | |
798 | } | |
799 | netif_stop_queue(dev); | |
800 | ||
801 | switch (card->info.type) { | |
802 | case QETH_CARD_TYPE_OSN: | |
803 | rc = qeth_l2_xmit_osn(card, skb, queue); | |
804 | break; | |
805 | case QETH_CARD_TYPE_IQD: | |
806 | rc = qeth_l2_xmit_iqd(card, skb, queue, cast_type); | |
807 | break; | |
808 | default: | |
809 | rc = qeth_l2_xmit_osa(card, skb, queue, cast_type); | |
810 | } | |
811 | ||
812 | if (!rc) { | |
813 | card->stats.tx_packets++; | |
814 | card->stats.tx_bytes += tx_bytes; | |
815 | if (card->options.performance_stats) | |
816 | card->perf_stats.outbound_time += qeth_get_micros() - | |
817 | card->perf_stats.outbound_start_time; | |
818 | netif_wake_queue(dev); | |
819 | return NETDEV_TX_OK; | |
820 | } else if (rc == -EBUSY) { | |
821 | return NETDEV_TX_BUSY; | |
822 | } /* else fall through */ | |
4a71df50 FB |
823 | |
824 | tx_drop: | |
825 | card->stats.tx_dropped++; | |
826 | card->stats.tx_errors++; | |
4a71df50 | 827 | dev_kfree_skb_any(skb); |
d0ec0f54 | 828 | netif_wake_queue(dev); |
4a71df50 FB |
829 | return NETDEV_TX_OK; |
830 | } | |
831 | ||
39423440 | 832 | static int __qeth_l2_open(struct net_device *dev) |
4a71df50 | 833 | { |
509e2562 | 834 | struct qeth_card *card = dev->ml_priv; |
a1c3ed4c | 835 | int rc = 0; |
4a71df50 | 836 | |
847a50fd | 837 | QETH_CARD_TEXT(card, 4, "qethopen"); |
39423440 UB |
838 | if (card->state == CARD_STATE_UP) |
839 | return rc; | |
4a71df50 FB |
840 | if (card->state != CARD_STATE_SOFTSETUP) |
841 | return -ENODEV; | |
842 | ||
843 | if ((card->info.type != QETH_CARD_TYPE_OSN) && | |
844 | (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { | |
847a50fd | 845 | QETH_CARD_TEXT(card, 4, "nomacadr"); |
4a71df50 FB |
846 | return -EPERM; |
847 | } | |
848 | card->data.state = CH_STATE_UP; | |
849 | card->state = CARD_STATE_UP; | |
4a71df50 FB |
850 | netif_start_queue(dev); |
851 | ||
a1c3ed4c FB |
852 | if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { |
853 | napi_enable(&card->napi); | |
854 | napi_schedule(&card->napi); | |
855 | } else | |
856 | rc = -EIO; | |
857 | return rc; | |
4a71df50 FB |
858 | } |
859 | ||
39423440 UB |
860 | static int qeth_l2_open(struct net_device *dev) |
861 | { | |
862 | struct qeth_card *card = dev->ml_priv; | |
863 | ||
864 | QETH_CARD_TEXT(card, 5, "qethope_"); | |
865 | if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { | |
866 | QETH_CARD_TEXT(card, 3, "openREC"); | |
867 | return -ERESTARTSYS; | |
868 | } | |
869 | return __qeth_l2_open(dev); | |
870 | } | |
871 | ||
4a71df50 FB |
872 | static int qeth_l2_stop(struct net_device *dev) |
873 | { | |
509e2562 | 874 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 875 | |
847a50fd | 876 | QETH_CARD_TEXT(card, 4, "qethstop"); |
4a71df50 | 877 | netif_tx_disable(dev); |
a1c3ed4c | 878 | if (card->state == CARD_STATE_UP) { |
4a71df50 | 879 | card->state = CARD_STATE_SOFTSETUP; |
a1c3ed4c FB |
880 | napi_disable(&card->napi); |
881 | } | |
4a71df50 FB |
882 | return 0; |
883 | } | |
884 | ||
2d2ebb3e JW |
885 | static const struct device_type qeth_l2_devtype = { |
886 | .name = "qeth_layer2", | |
887 | .groups = qeth_l2_attr_groups, | |
888 | }; | |
889 | ||
4a71df50 FB |
890 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) |
891 | { | |
892 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
9111e788 | 893 | int rc; |
4a71df50 | 894 | |
2d2ebb3e JW |
895 | if (gdev->dev.type == &qeth_generic_devtype) { |
896 | rc = qeth_l2_create_device_attributes(&gdev->dev); | |
897 | if (rc) | |
898 | return rc; | |
899 | } | |
4a71df50 | 900 | INIT_LIST_HEAD(&card->vid_list); |
fe5c8028 | 901 | hash_init(card->mac_htable); |
4a71df50 | 902 | card->options.layer2 = 1; |
1da74b1c | 903 | card->info.hwtrap = 0; |
caa1f0b1 | 904 | qeth_l2_vnicc_set_defaults(card); |
4a71df50 FB |
905 | return 0; |
906 | } | |
907 | ||
908 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
909 | { | |
910 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
911 | ||
2d2ebb3e JW |
912 | if (cgdev->dev.type == &qeth_generic_devtype) |
913 | qeth_l2_remove_device_attributes(&cgdev->dev); | |
f2148565 | 914 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
915 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
916 | ||
70919e23 | 917 | if (cgdev->state == CCWGROUP_ONLINE) |
4a71df50 | 918 | qeth_l2_set_offline(cgdev); |
4a71df50 FB |
919 | |
920 | if (card->dev) { | |
921 | unregister_netdev(card->dev); | |
6be68739 | 922 | free_netdev(card->dev); |
4a71df50 FB |
923 | card->dev = NULL; |
924 | } | |
4a71df50 FB |
925 | return; |
926 | } | |
927 | ||
0fc0b732 | 928 | static const struct ethtool_ops qeth_l2_ethtool_ops = { |
4a71df50 | 929 | .get_link = ethtool_op_get_link, |
4a71df50 FB |
930 | .get_strings = qeth_core_get_strings, |
931 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 932 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 | 933 | .get_drvinfo = qeth_core_get_drvinfo, |
993e19c0 | 934 | .get_link_ksettings = qeth_core_ethtool_get_link_ksettings, |
4a71df50 FB |
935 | }; |
936 | ||
0fc0b732 | 937 | static const struct ethtool_ops qeth_l2_osn_ops = { |
4a71df50 FB |
938 | .get_strings = qeth_core_get_strings, |
939 | .get_ethtool_stats = qeth_core_get_ethtool_stats, | |
df8b4ec8 | 940 | .get_sset_count = qeth_core_get_sset_count, |
4a71df50 FB |
941 | .get_drvinfo = qeth_core_get_drvinfo, |
942 | }; | |
943 | ||
3d58cefd | 944 | static const struct net_device_ops qeth_l2_netdev_ops = { |
8403b13c FB |
945 | .ndo_open = qeth_l2_open, |
946 | .ndo_stop = qeth_l2_stop, | |
947 | .ndo_get_stats = qeth_get_stats, | |
948 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
6d69b1f1 | 949 | .ndo_features_check = qeth_features_check, |
8403b13c | 950 | .ndo_validate_addr = eth_validate_addr, |
fe5c8028 | 951 | .ndo_set_rx_mode = qeth_l2_set_rx_mode, |
942d6984 | 952 | .ndo_do_ioctl = qeth_do_ioctl, |
8403b13c FB |
953 | .ndo_set_mac_address = qeth_l2_set_mac_address, |
954 | .ndo_change_mtu = qeth_change_mtu, | |
955 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, | |
956 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
957 | .ndo_tx_timeout = qeth_tx_timeout, | |
8f43fb00 TR |
958 | .ndo_fix_features = qeth_fix_features, |
959 | .ndo_set_features = qeth_set_features | |
8403b13c FB |
960 | }; |
961 | ||
4a71df50 FB |
962 | static int qeth_l2_setup_netdev(struct qeth_card *card) |
963 | { | |
964 | switch (card->info.type) { | |
4a71df50 | 965 | case QETH_CARD_TYPE_IQD: |
c835a677 TG |
966 | card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, |
967 | ether_setup); | |
4a71df50 FB |
968 | break; |
969 | case QETH_CARD_TYPE_OSN: | |
c835a677 TG |
970 | card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, |
971 | ether_setup); | |
4a71df50 FB |
972 | break; |
973 | default: | |
974 | card->dev = alloc_etherdev(0); | |
975 | } | |
976 | ||
977 | if (!card->dev) | |
978 | return -ENODEV; | |
979 | ||
509e2562 | 980 | card->dev->ml_priv = card; |
d3aacac4 | 981 | card->dev->priv_flags |= IFF_UNICAST_FLT; |
4a71df50 | 982 | card->dev->watchdog_timeo = QETH_TX_TIMEOUT; |
4a71df50 | 983 | card->dev->mtu = card->info.initial_mtu; |
46b3ef4c JW |
984 | card->dev->min_mtu = 64; |
985 | card->dev->max_mtu = ETH_MAX_MTU; | |
8403b13c | 986 | card->dev->netdev_ops = &qeth_l2_netdev_ops; |
25e2c341 JW |
987 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
988 | card->dev->ethtool_ops = &qeth_l2_osn_ops; | |
989 | card->dev->flags |= IFF_NOARP; | |
990 | } else { | |
991 | card->dev->ethtool_ops = &qeth_l2_ethtool_ops; | |
992 | } | |
9400c53f JW |
993 | |
994 | if (card->info.type == QETH_CARD_TYPE_OSM) | |
995 | card->dev->features |= NETIF_F_VLAN_CHALLENGED; | |
996 | else | |
997 | card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; | |
0f342945 JW |
998 | |
999 | if (card->info.type != QETH_CARD_TYPE_OSN && | |
1000 | card->info.type != QETH_CARD_TYPE_IQD) { | |
1001 | card->dev->priv_flags &= ~IFF_TX_SKB_SHARING; | |
1002 | card->dev->needed_headroom = sizeof(struct qeth_hdr); | |
1003 | card->dev->hw_features |= NETIF_F_SG; | |
1004 | card->dev->vlan_features |= NETIF_F_SG; | |
1005 | } | |
1006 | ||
4d7def2a | 1007 | if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) { |
6d69b1f1 | 1008 | card->dev->features |= NETIF_F_SG; |
8f43fb00 | 1009 | /* OSA 3S and earlier has no RX/TX support */ |
9bdc4411 | 1010 | if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) { |
8f43fb00 | 1011 | card->dev->hw_features |= NETIF_F_IP_CSUM; |
9bdc4411 HW |
1012 | card->dev->vlan_features |= NETIF_F_IP_CSUM; |
1013 | } | |
1014 | if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { | |
8f43fb00 | 1015 | card->dev->hw_features |= NETIF_F_RXCSUM; |
9bdc4411 HW |
1016 | card->dev->vlan_features |= NETIF_F_RXCSUM; |
1017 | } | |
4d7def2a | 1018 | } |
0d6f02d3 | 1019 | |
4a71df50 FB |
1020 | card->info.broadcast_capable = 1; |
1021 | qeth_l2_request_initial_mac(card); | |
1022 | SET_NETDEV_DEV(card->dev, &card->gdev->dev); | |
d73ef324 | 1023 | netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT); |
e5ebe632 | 1024 | netif_carrier_off(card->dev); |
4a71df50 FB |
1025 | return register_netdev(card->dev); |
1026 | } | |
1027 | ||
4d7def2a TR |
1028 | static int qeth_l2_start_ipassists(struct qeth_card *card) |
1029 | { | |
1030 | /* configure isolation level */ | |
1031 | if (qeth_set_access_ctrl_online(card, 0)) | |
1032 | return -ENODEV; | |
4d7def2a TR |
1033 | return 0; |
1034 | } | |
1035 | ||
521c10ea JW |
1036 | static void qeth_l2_trace_features(struct qeth_card *card) |
1037 | { | |
a45b3faf HW |
1038 | /* Set BridgePort features */ |
1039 | QETH_CARD_TEXT(card, 2, "featuSBP"); | |
521c10ea JW |
1040 | QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs, |
1041 | sizeof(card->options.sbp.supported_funcs)); | |
a45b3faf HW |
1042 | /* VNIC Characteristics features */ |
1043 | QETH_CARD_TEXT(card, 2, "feaVNICC"); | |
1044 | QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars, | |
1045 | sizeof(card->options.vnicc.sup_chars)); | |
521c10ea JW |
1046 | } |
1047 | ||
4a71df50 FB |
1048 | static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) |
1049 | { | |
1050 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1051 | int rc = 0; | |
1052 | enum qeth_card_states recover_flag; | |
1053 | ||
9dc48ccc | 1054 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 1055 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
1056 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
1057 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 1058 | |
4a71df50 | 1059 | recover_flag = card->state; |
4a71df50 FB |
1060 | rc = qeth_core_hardsetup_card(card); |
1061 | if (rc) { | |
1aec42bc | 1062 | QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); |
aa909224 | 1063 | rc = -ENODEV; |
4a71df50 FB |
1064 | goto out_remove; |
1065 | } | |
c044dc21 EC |
1066 | qeth_bridgeport_query_support(card); |
1067 | if (card->options.sbp.supported_funcs) | |
1068 | dev_info(&card->gdev->dev, | |
9c23f4da | 1069 | "The device represents a Bridge Capable Port\n"); |
4a71df50 | 1070 | |
aa909224 UB |
1071 | if (!card->dev && qeth_l2_setup_netdev(card)) { |
1072 | rc = -ENODEV; | |
4a71df50 | 1073 | goto out_remove; |
aa909224 | 1074 | } |
4a71df50 | 1075 | |
bcacfcbc JW |
1076 | if (card->info.type != QETH_CARD_TYPE_OSN && |
1077 | !qeth_l2_send_setmac(card, card->dev->dev_addr)) | |
1078 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
4a71df50 | 1079 | |
1da74b1c FB |
1080 | if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { |
1081 | if (card->info.hwtrap && | |
1082 | qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) | |
1083 | card->info.hwtrap = 0; | |
1084 | } else | |
1085 | card->info.hwtrap = 0; | |
1086 | ||
a45b3faf HW |
1087 | /* for the rx_bcast characteristic, init VNICC after setmac */ |
1088 | qeth_l2_vnicc_init(card); | |
1089 | ||
1090 | qeth_trace_features(card); | |
1091 | qeth_l2_trace_features(card); | |
1092 | ||
b4d72c08 EC |
1093 | qeth_l2_setup_bridgeport_attrs(card); |
1094 | ||
4a71df50 FB |
1095 | card->state = CARD_STATE_HARDSETUP; |
1096 | qeth_print_status_message(card); | |
1097 | ||
1098 | /* softsetup */ | |
d11ba0c4 | 1099 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 | 1100 | |
5113fec0 | 1101 | if ((card->info.type == QETH_CARD_TYPE_OSD) || |
0f54761d | 1102 | (card->info.type == QETH_CARD_TYPE_OSX)) { |
8f43fb00 TR |
1103 | rc = qeth_l2_start_ipassists(card); |
1104 | if (rc) | |
0f54761d | 1105 | goto out_remove; |
0f54761d | 1106 | } |
5113fec0 | 1107 | |
9400c53f | 1108 | if (card->info.type != QETH_CARD_TYPE_OSN) |
70919e23 | 1109 | qeth_l2_process_vlans(card); |
4a71df50 FB |
1110 | |
1111 | netif_tx_disable(card->dev); | |
1112 | ||
1113 | rc = qeth_init_qdio_queues(card); | |
1114 | if (rc) { | |
d11ba0c4 | 1115 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 1116 | rc = -ENODEV; |
4a71df50 FB |
1117 | goto out_remove; |
1118 | } | |
1119 | card->state = CARD_STATE_SOFTSETUP; | |
2b6203bb UB |
1120 | if (card->lan_online) |
1121 | netif_carrier_on(card->dev); | |
1122 | else | |
1123 | netif_carrier_off(card->dev); | |
4a71df50 FB |
1124 | |
1125 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1126 | if (recover_flag == CARD_STATE_RECOVER) { | |
1127 | if (recovery_mode && | |
1128 | card->info.type != QETH_CARD_TYPE_OSN) { | |
39423440 | 1129 | __qeth_l2_open(card->dev); |
4a71df50 FB |
1130 | } else { |
1131 | rtnl_lock(); | |
1132 | dev_open(card->dev); | |
1133 | rtnl_unlock(); | |
1134 | } | |
1135 | /* this also sets saved unicast addresses */ | |
fe5c8028 | 1136 | qeth_l2_set_rx_mode(card->dev); |
e830baa9 HW |
1137 | rtnl_lock(); |
1138 | qeth_recover_features(card->dev); | |
1139 | rtnl_unlock(); | |
4a71df50 FB |
1140 | } |
1141 | /* let user_space know that device is online */ | |
1142 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1143 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1144 | mutex_unlock(&card->discipline_mutex); |
4a71df50 | 1145 | return 0; |
aa909224 | 1146 | |
4a71df50 | 1147 | out_remove: |
4a71df50 FB |
1148 | qeth_l2_stop_card(card, 0); |
1149 | ccw_device_set_offline(CARD_DDEV(card)); | |
1150 | ccw_device_set_offline(CARD_WDEV(card)); | |
1151 | ccw_device_set_offline(CARD_RDEV(card)); | |
22ae2790 | 1152 | qdio_free(CARD_DDEV(card)); |
4a71df50 FB |
1153 | if (recover_flag == CARD_STATE_RECOVER) |
1154 | card->state = CARD_STATE_RECOVER; | |
1155 | else | |
1156 | card->state = CARD_STATE_DOWN; | |
c4949f07 | 1157 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1158 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 1159 | return rc; |
4a71df50 FB |
1160 | } |
1161 | ||
1162 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) | |
1163 | { | |
1164 | return __qeth_l2_set_online(gdev, 0); | |
1165 | } | |
1166 | ||
1167 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, | |
1168 | int recovery_mode) | |
1169 | { | |
1170 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
1171 | int rc = 0, rc2 = 0, rc3 = 0; | |
1172 | enum qeth_card_states recover_flag; | |
1173 | ||
9dc48ccc | 1174 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 1175 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
1176 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
1177 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 FB |
1178 | |
1179 | if (card->dev && netif_carrier_ok(card->dev)) | |
1180 | netif_carrier_off(card->dev); | |
1181 | recover_flag = card->state; | |
1da74b1c FB |
1182 | if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { |
1183 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
1184 | card->info.hwtrap = 1; | |
1185 | } | |
0f5623c9 | 1186 | qeth_l2_stop_card(card, recovery_mode); |
4a71df50 FB |
1187 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
1188 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
1189 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
1190 | if (!rc) | |
1191 | rc = (rc2) ? rc2 : rc3; | |
1192 | if (rc) | |
d11ba0c4 | 1193 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
22ae2790 | 1194 | qdio_free(CARD_DDEV(card)); |
4a71df50 FB |
1195 | if (recover_flag == CARD_STATE_UP) |
1196 | card->state = CARD_STATE_RECOVER; | |
1197 | /* let user_space know that device is offline */ | |
1198 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 1199 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 1200 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
1201 | return 0; |
1202 | } | |
1203 | ||
1204 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
1205 | { | |
1206 | return __qeth_l2_set_offline(cgdev, 0); | |
1207 | } | |
1208 | ||
1209 | static int qeth_l2_recover(void *ptr) | |
1210 | { | |
1211 | struct qeth_card *card; | |
1212 | int rc = 0; | |
1213 | ||
1214 | card = (struct qeth_card *) ptr; | |
847a50fd | 1215 | QETH_CARD_TEXT(card, 2, "recover1"); |
4a71df50 FB |
1216 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
1217 | return 0; | |
847a50fd | 1218 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
1219 | dev_warn(&card->gdev->dev, |
1220 | "A recovery process has been started for the device\n"); | |
65d8013c | 1221 | qeth_set_recovery_task(card); |
4a71df50 FB |
1222 | __qeth_l2_set_offline(card->gdev, 1); |
1223 | rc = __qeth_l2_set_online(card->gdev, 1); | |
4a71df50 | 1224 | if (!rc) |
74eacdb9 FB |
1225 | dev_info(&card->gdev->dev, |
1226 | "Device successfully recovered!\n"); | |
28a7e4c9 | 1227 | else { |
0f54761d SR |
1228 | qeth_close_dev(card); |
1229 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
2efaf5ff | 1230 | "failed to recover an error on the device\n"); |
28a7e4c9 | 1231 | } |
65d8013c | 1232 | qeth_clear_recovery_task(card); |
a1c3ed4c FB |
1233 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
1234 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
1235 | return 0; |
1236 | } | |
1237 | ||
1238 | static int __init qeth_l2_init(void) | |
1239 | { | |
74eacdb9 | 1240 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
1241 | return 0; |
1242 | } | |
1243 | ||
1244 | static void __exit qeth_l2_exit(void) | |
1245 | { | |
74eacdb9 | 1246 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
1247 | } |
1248 | ||
bbcfcdc8 FB |
1249 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
1250 | { | |
1251 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1252 | ||
1253 | if (card->dev) | |
1254 | netif_device_detach(card->dev); | |
1255 | qeth_set_allowed_threads(card, 0, 1); | |
1256 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
1257 | if (gdev->state == CCWGROUP_OFFLINE) | |
1258 | return 0; | |
1259 | if (card->state == CARD_STATE_UP) { | |
1da74b1c FB |
1260 | if (card->info.hwtrap) |
1261 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
bbcfcdc8 FB |
1262 | __qeth_l2_set_offline(card->gdev, 1); |
1263 | } else | |
1264 | __qeth_l2_set_offline(card->gdev, 0); | |
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
1269 | { | |
1270 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
1271 | int rc = 0; | |
1272 | ||
1273 | if (gdev->state == CCWGROUP_OFFLINE) | |
1274 | goto out; | |
1275 | ||
1276 | if (card->state == CARD_STATE_RECOVER) { | |
1277 | rc = __qeth_l2_set_online(card->gdev, 1); | |
1278 | if (rc) { | |
869da90b UB |
1279 | rtnl_lock(); |
1280 | dev_close(card->dev); | |
1281 | rtnl_unlock(); | |
bbcfcdc8 FB |
1282 | } |
1283 | } else | |
1284 | rc = __qeth_l2_set_online(card->gdev, 0); | |
1285 | out: | |
1286 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
1287 | if (card->dev) | |
1288 | netif_device_attach(card->dev); | |
1289 | if (rc) | |
1290 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
1291 | "failed to recover an error on the device\n"); | |
1292 | return rc; | |
1293 | } | |
1294 | ||
c044dc21 EC |
1295 | /* Returns zero if the command is successfully "consumed" */ |
1296 | static int qeth_l2_control_event(struct qeth_card *card, | |
1297 | struct qeth_ipa_cmd *cmd) | |
1298 | { | |
1299 | switch (cmd->hdr.command) { | |
9c23f4da EC |
1300 | case IPA_CMD_SETBRIDGEPORT_OSA: |
1301 | case IPA_CMD_SETBRIDGEPORT_IQD: | |
c044dc21 EC |
1302 | if (cmd->data.sbp.hdr.command_code == |
1303 | IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { | |
1304 | qeth_bridge_state_change(card, cmd); | |
1305 | return 0; | |
1306 | } else | |
1307 | return 1; | |
1308 | case IPA_CMD_ADDRESS_CHANGE_NOTIF: | |
1309 | qeth_bridge_host_event(card, cmd); | |
1310 | return 0; | |
1311 | default: | |
1312 | return 1; | |
1313 | } | |
1314 | } | |
1315 | ||
c041f2d4 | 1316 | struct qeth_discipline qeth_l2_discipline = { |
2d2ebb3e | 1317 | .devtype = &qeth_l2_devtype, |
c041f2d4 SO |
1318 | .start_poll = qeth_qdio_start_poll, |
1319 | .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, | |
1320 | .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, | |
d73ef324 | 1321 | .process_rx_buffer = qeth_l2_process_inbound_buffer, |
c041f2d4 SO |
1322 | .recover = qeth_l2_recover, |
1323 | .setup = qeth_l2_probe_device, | |
4a71df50 FB |
1324 | .remove = qeth_l2_remove_device, |
1325 | .set_online = qeth_l2_set_online, | |
1326 | .set_offline = qeth_l2_set_offline, | |
bbcfcdc8 FB |
1327 | .freeze = qeth_l2_pm_suspend, |
1328 | .thaw = qeth_l2_pm_resume, | |
1329 | .restore = qeth_l2_pm_resume, | |
942d6984 | 1330 | .do_ioctl = NULL, |
c044dc21 | 1331 | .control_event_handler = qeth_l2_control_event, |
4a71df50 | 1332 | }; |
c041f2d4 | 1333 | EXPORT_SYMBOL_GPL(qeth_l2_discipline); |
4a71df50 FB |
1334 | |
1335 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1336 | struct qeth_cmd_buffer *iob) | |
1337 | { | |
1338 | unsigned long flags; | |
1339 | int rc = 0; | |
1340 | ||
847a50fd | 1341 | QETH_CARD_TEXT(card, 5, "osndctrd"); |
4a71df50 FB |
1342 | |
1343 | wait_event(card->wait_q, | |
1344 | atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); | |
1345 | qeth_prepare_control_data(card, len, iob); | |
847a50fd | 1346 | QETH_CARD_TEXT(card, 6, "osnoirqp"); |
4a71df50 | 1347 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
db71bbbd JW |
1348 | rc = ccw_device_start_timeout(CARD_WDEV(card), &card->write.ccw, |
1349 | (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT); | |
4a71df50 FB |
1350 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); |
1351 | if (rc) { | |
14cc21b6 | 1352 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1353 | "ccw_device_start rc = %i\n", rc); |
847a50fd | 1354 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
4a71df50 FB |
1355 | qeth_release_buffer(iob->channel, iob); |
1356 | atomic_set(&card->write.irq_pending, 0); | |
1357 | wake_up(&card->wait_q); | |
1358 | } | |
1359 | return rc; | |
1360 | } | |
1361 | ||
1362 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
1363 | struct qeth_cmd_buffer *iob, int data_len) | |
1364 | { | |
1365 | u16 s1, s2; | |
1366 | ||
847a50fd | 1367 | QETH_CARD_TEXT(card, 4, "osndipa"); |
4a71df50 FB |
1368 | |
1369 | qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); | |
1370 | s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); | |
1371 | s2 = (u16)data_len; | |
1372 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); | |
1373 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); | |
1374 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); | |
1375 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); | |
1376 | return qeth_osn_send_control_data(card, s1, iob); | |
1377 | } | |
1378 | ||
1379 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1380 | { | |
1381 | struct qeth_cmd_buffer *iob; | |
1382 | struct qeth_card *card; | |
4a71df50 | 1383 | |
4a71df50 FB |
1384 | if (!dev) |
1385 | return -ENODEV; | |
509e2562 | 1386 | card = dev->ml_priv; |
4a71df50 FB |
1387 | if (!card) |
1388 | return -ENODEV; | |
847a50fd | 1389 | QETH_CARD_TEXT(card, 2, "osnsdmc"); |
c3521254 | 1390 | if (!qeth_card_hw_is_reachable(card)) |
4a71df50 FB |
1391 | return -ENODEV; |
1392 | iob = qeth_wait_for_buffer(&card->write); | |
ff5caa7a JW |
1393 | memcpy(__ipa_cmd(iob), data, data_len); |
1394 | return qeth_osn_send_ipa_cmd(card, iob, data_len); | |
4a71df50 FB |
1395 | } |
1396 | EXPORT_SYMBOL(qeth_osn_assist); | |
1397 | ||
1398 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1399 | int (*assist_cb)(struct net_device *, void *), | |
1400 | int (*data_cb)(struct sk_buff *)) | |
1401 | { | |
1402 | struct qeth_card *card; | |
1403 | ||
4a71df50 FB |
1404 | *dev = qeth_l2_netdev_by_devno(read_dev_no); |
1405 | if (*dev == NULL) | |
1406 | return -ENODEV; | |
509e2562 | 1407 | card = (*dev)->ml_priv; |
4a71df50 FB |
1408 | if (!card) |
1409 | return -ENODEV; | |
847a50fd | 1410 | QETH_CARD_TEXT(card, 2, "osnreg"); |
4a71df50 FB |
1411 | if ((assist_cb == NULL) || (data_cb == NULL)) |
1412 | return -EINVAL; | |
1413 | card->osn_info.assist_cb = assist_cb; | |
1414 | card->osn_info.data_cb = data_cb; | |
1415 | return 0; | |
1416 | } | |
1417 | EXPORT_SYMBOL(qeth_osn_register); | |
1418 | ||
1419 | void qeth_osn_deregister(struct net_device *dev) | |
1420 | { | |
1421 | struct qeth_card *card; | |
1422 | ||
4a71df50 FB |
1423 | if (!dev) |
1424 | return; | |
509e2562 | 1425 | card = dev->ml_priv; |
4a71df50 FB |
1426 | if (!card) |
1427 | return; | |
847a50fd | 1428 | QETH_CARD_TEXT(card, 2, "osndereg"); |
4a71df50 FB |
1429 | card->osn_info.assist_cb = NULL; |
1430 | card->osn_info.data_cb = NULL; | |
1431 | return; | |
1432 | } | |
1433 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1434 | ||
b4d72c08 EC |
1435 | /* SETBRIDGEPORT support, async notifications */ |
1436 | ||
9f48b9db EC |
1437 | enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; |
1438 | ||
1439 | /** | |
1440 | * qeth_bridge_emit_host_event() - bridgeport address change notification | |
1441 | * @card: qeth_card structure pointer, for udev events. | |
1442 | * @evtype: "normal" register/unregister, or abort, or reset. For abort | |
1443 | * and reset token and addr_lnid are unused and may be NULL. | |
1444 | * @code: event bitmask: high order bit 0x80 value 1 means removal of an | |
1445 | * object, 0 - addition of an object. | |
1446 | * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. | |
1447 | * @token: "network token" structure identifying physical address of the port. | |
1448 | * @addr_lnid: pointer to structure with MAC address and VLAN ID. | |
1449 | * | |
1450 | * This function is called when registrations and deregistrations are | |
1451 | * reported by the hardware, and also when notifications are enabled - | |
1452 | * for all currently registered addresses. | |
1453 | */ | |
1454 | static void qeth_bridge_emit_host_event(struct qeth_card *card, | |
1455 | enum qeth_an_event_type evtype, | |
1456 | u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) | |
1457 | { | |
1458 | char str[7][32]; | |
1459 | char *env[8]; | |
1460 | int i = 0; | |
1461 | ||
1462 | switch (evtype) { | |
1463 | case anev_reg_unreg: | |
1464 | snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", | |
1465 | (code & IPA_ADDR_CHANGE_CODE_REMOVAL) | |
1466 | ? "deregister" : "register"); | |
1467 | env[i] = str[i]; i++; | |
1468 | if (code & IPA_ADDR_CHANGE_CODE_VLANID) { | |
1469 | snprintf(str[i], sizeof(str[i]), "VLAN=%d", | |
1470 | addr_lnid->lnid); | |
1471 | env[i] = str[i]; i++; | |
1472 | } | |
1473 | if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { | |
9846e70b | 1474 | snprintf(str[i], sizeof(str[i]), "MAC=%pM", |
4d7def2a | 1475 | addr_lnid->mac); |
9f48b9db EC |
1476 | env[i] = str[i]; i++; |
1477 | } | |
1478 | snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", | |
1479 | token->cssid, token->ssid, token->devnum); | |
1480 | env[i] = str[i]; i++; | |
1481 | snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); | |
1482 | env[i] = str[i]; i++; | |
1483 | snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", | |
1484 | token->chpid); | |
1485 | env[i] = str[i]; i++; | |
1486 | snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); | |
1487 | env[i] = str[i]; i++; | |
1488 | break; | |
1489 | case anev_abort: | |
1490 | snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); | |
1491 | env[i] = str[i]; i++; | |
1492 | break; | |
1493 | case anev_reset: | |
1494 | snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); | |
1495 | env[i] = str[i]; i++; | |
1496 | break; | |
1497 | } | |
1498 | env[i] = NULL; | |
1499 | kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); | |
1500 | } | |
1501 | ||
b4d72c08 EC |
1502 | struct qeth_bridge_state_data { |
1503 | struct work_struct worker; | |
1504 | struct qeth_card *card; | |
1505 | struct qeth_sbp_state_change qports; | |
1506 | }; | |
1507 | ||
1508 | static void qeth_bridge_state_change_worker(struct work_struct *work) | |
1509 | { | |
1510 | struct qeth_bridge_state_data *data = | |
1511 | container_of(work, struct qeth_bridge_state_data, worker); | |
1512 | /* We are only interested in the first entry - local port */ | |
1513 | struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; | |
1514 | char env_locrem[32]; | |
1515 | char env_role[32]; | |
1516 | char env_state[32]; | |
1517 | char *env[] = { | |
1518 | env_locrem, | |
1519 | env_role, | |
1520 | env_state, | |
1521 | NULL | |
1522 | }; | |
1523 | ||
1524 | /* Role should not change by itself, but if it did, */ | |
1525 | /* information from the hardware is authoritative. */ | |
1526 | mutex_lock(&data->card->conf_mutex); | |
1527 | data->card->options.sbp.role = entry->role; | |
1528 | mutex_unlock(&data->card->conf_mutex); | |
1529 | ||
1530 | snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); | |
1531 | snprintf(env_role, sizeof(env_role), "ROLE=%s", | |
1532 | (entry->role == QETH_SBP_ROLE_NONE) ? "none" : | |
1533 | (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : | |
1534 | (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : | |
1535 | "<INVALID>"); | |
1536 | snprintf(env_state, sizeof(env_state), "STATE=%s", | |
1537 | (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : | |
1538 | (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : | |
1539 | (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : | |
1540 | "<INVALID>"); | |
1541 | kobject_uevent_env(&data->card->gdev->dev.kobj, | |
1542 | KOBJ_CHANGE, env); | |
1543 | kfree(data); | |
1544 | } | |
1545 | ||
c044dc21 EC |
1546 | static void qeth_bridge_state_change(struct qeth_card *card, |
1547 | struct qeth_ipa_cmd *cmd) | |
b4d72c08 EC |
1548 | { |
1549 | struct qeth_sbp_state_change *qports = | |
1550 | &cmd->data.sbp.data.state_change; | |
1551 | struct qeth_bridge_state_data *data; | |
1552 | int extrasize; | |
1553 | ||
1554 | QETH_CARD_TEXT(card, 2, "brstchng"); | |
1555 | if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { | |
8a593148 | 1556 | QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length); |
b4d72c08 EC |
1557 | return; |
1558 | } | |
1559 | extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; | |
1560 | data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, | |
1561 | GFP_ATOMIC); | |
1562 | if (!data) { | |
1563 | QETH_CARD_TEXT(card, 2, "BPSalloc"); | |
1564 | return; | |
1565 | } | |
1566 | INIT_WORK(&data->worker, qeth_bridge_state_change_worker); | |
1567 | data->card = card; | |
1568 | memcpy(&data->qports, qports, | |
1569 | sizeof(struct qeth_sbp_state_change) + extrasize); | |
1570 | queue_work(qeth_wq, &data->worker); | |
1571 | } | |
b4d72c08 | 1572 | |
9f48b9db EC |
1573 | struct qeth_bridge_host_data { |
1574 | struct work_struct worker; | |
1575 | struct qeth_card *card; | |
1576 | struct qeth_ipacmd_addr_change hostevs; | |
1577 | }; | |
1578 | ||
1579 | static void qeth_bridge_host_event_worker(struct work_struct *work) | |
1580 | { | |
1581 | struct qeth_bridge_host_data *data = | |
1582 | container_of(work, struct qeth_bridge_host_data, worker); | |
1583 | int i; | |
1584 | ||
1585 | if (data->hostevs.lost_event_mask) { | |
1586 | dev_info(&data->card->gdev->dev, | |
9c23f4da | 1587 | "Address notification from the Bridge Port stopped %s (%s)\n", |
9f48b9db EC |
1588 | data->card->dev->name, |
1589 | (data->hostevs.lost_event_mask == 0x01) | |
1590 | ? "Overflow" | |
1591 | : (data->hostevs.lost_event_mask == 0x02) | |
1592 | ? "Bridge port state change" | |
1593 | : "Unknown reason"); | |
1594 | mutex_lock(&data->card->conf_mutex); | |
1595 | data->card->options.sbp.hostnotification = 0; | |
1596 | mutex_unlock(&data->card->conf_mutex); | |
1597 | qeth_bridge_emit_host_event(data->card, anev_abort, | |
1598 | 0, NULL, NULL); | |
1599 | } else | |
1600 | for (i = 0; i < data->hostevs.num_entries; i++) { | |
1601 | struct qeth_ipacmd_addr_change_entry *entry = | |
1602 | &data->hostevs.entry[i]; | |
1603 | qeth_bridge_emit_host_event(data->card, | |
1604 | anev_reg_unreg, | |
1605 | entry->change_code, | |
1606 | &entry->token, &entry->addr_lnid); | |
1607 | } | |
1608 | kfree(data); | |
1609 | } | |
1610 | ||
c044dc21 EC |
1611 | static void qeth_bridge_host_event(struct qeth_card *card, |
1612 | struct qeth_ipa_cmd *cmd) | |
9f48b9db EC |
1613 | { |
1614 | struct qeth_ipacmd_addr_change *hostevs = | |
1615 | &cmd->data.addrchange; | |
1616 | struct qeth_bridge_host_data *data; | |
1617 | int extrasize; | |
1618 | ||
1619 | QETH_CARD_TEXT(card, 2, "brhostev"); | |
1620 | if (cmd->hdr.return_code != 0x0000) { | |
1621 | if (cmd->hdr.return_code == 0x0010) { | |
1622 | if (hostevs->lost_event_mask == 0x00) | |
1623 | hostevs->lost_event_mask = 0xff; | |
1624 | } else { | |
1625 | QETH_CARD_TEXT_(card, 2, "BPHe%04x", | |
1626 | cmd->hdr.return_code); | |
1627 | return; | |
1628 | } | |
1629 | } | |
1630 | extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * | |
1631 | hostevs->num_entries; | |
1632 | data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, | |
1633 | GFP_ATOMIC); | |
1634 | if (!data) { | |
1635 | QETH_CARD_TEXT(card, 2, "BPHalloc"); | |
1636 | return; | |
1637 | } | |
1638 | INIT_WORK(&data->worker, qeth_bridge_host_event_worker); | |
1639 | data->card = card; | |
1640 | memcpy(&data->hostevs, hostevs, | |
1641 | sizeof(struct qeth_ipacmd_addr_change) + extrasize); | |
1642 | queue_work(qeth_wq, &data->worker); | |
1643 | } | |
9f48b9db | 1644 | |
b4d72c08 EC |
1645 | /* SETBRIDGEPORT support; sending commands */ |
1646 | ||
1647 | struct _qeth_sbp_cbctl { | |
1648 | u16 ipa_rc; | |
1649 | u16 cmd_rc; | |
1650 | union { | |
1651 | u32 supported; | |
1652 | struct { | |
1653 | enum qeth_sbp_roles *role; | |
1654 | enum qeth_sbp_states *state; | |
1655 | } qports; | |
1656 | } data; | |
1657 | }; | |
1658 | ||
1659 | /** | |
1660 | * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes. | |
1661 | * @card: qeth_card structure pointer, for debug messages. | |
1662 | * @cbctl: state structure with hardware return codes. | |
1663 | * @setcmd: IPA command code | |
1664 | * | |
1665 | * Returns negative errno-compatible error indication or 0 on success. | |
1666 | */ | |
1667 | static int qeth_bridgeport_makerc(struct qeth_card *card, | |
1668 | struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd) | |
1669 | { | |
1670 | int rc; | |
9c23f4da | 1671 | int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD); |
b4d72c08 | 1672 | |
9c23f4da EC |
1673 | if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) || |
1674 | (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc))) | |
b4d72c08 | 1675 | switch (cbctl->cmd_rc) { |
2063a5f5 | 1676 | case IPA_RC_SUCCESS: |
b4d72c08 EC |
1677 | rc = 0; |
1678 | break; | |
2063a5f5 KM |
1679 | case IPA_RC_L2_UNSUPPORTED_CMD: |
1680 | case IPA_RC_UNSUPPORTED_COMMAND: | |
ffb95251 | 1681 | rc = -EOPNOTSUPP; |
b4d72c08 | 1682 | break; |
2063a5f5 KM |
1683 | case IPA_RC_SBP_OSA_NOT_CONFIGURED: |
1684 | case IPA_RC_SBP_IQD_NOT_CONFIGURED: | |
b4d72c08 EC |
1685 | rc = -ENODEV; /* maybe not the best code here? */ |
1686 | dev_err(&card->gdev->dev, | |
9c23f4da | 1687 | "The device is not configured as a Bridge Port\n"); |
b4d72c08 | 1688 | break; |
2063a5f5 KM |
1689 | case IPA_RC_SBP_OSA_OS_MISMATCH: |
1690 | case IPA_RC_SBP_IQD_OS_MISMATCH: | |
1b05cf62 EC |
1691 | rc = -EPERM; |
1692 | dev_err(&card->gdev->dev, | |
1693 | "A Bridge Port is already configured by a different operating system\n"); | |
1694 | break; | |
2063a5f5 KM |
1695 | case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY: |
1696 | case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY: | |
b4d72c08 EC |
1697 | switch (setcmd) { |
1698 | case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: | |
1699 | rc = -EEXIST; | |
1700 | dev_err(&card->gdev->dev, | |
9c23f4da | 1701 | "The LAN already has a primary Bridge Port\n"); |
b4d72c08 EC |
1702 | break; |
1703 | case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: | |
1704 | rc = -EBUSY; | |
1705 | dev_err(&card->gdev->dev, | |
9c23f4da | 1706 | "The device is already a primary Bridge Port\n"); |
b4d72c08 EC |
1707 | break; |
1708 | default: | |
1709 | rc = -EIO; | |
1710 | } | |
1711 | break; | |
2063a5f5 KM |
1712 | case IPA_RC_SBP_OSA_CURRENT_SECOND: |
1713 | case IPA_RC_SBP_IQD_CURRENT_SECOND: | |
b4d72c08 EC |
1714 | rc = -EBUSY; |
1715 | dev_err(&card->gdev->dev, | |
9c23f4da | 1716 | "The device is already a secondary Bridge Port\n"); |
b4d72c08 | 1717 | break; |
2063a5f5 KM |
1718 | case IPA_RC_SBP_OSA_LIMIT_SECOND: |
1719 | case IPA_RC_SBP_IQD_LIMIT_SECOND: | |
b4d72c08 EC |
1720 | rc = -EEXIST; |
1721 | dev_err(&card->gdev->dev, | |
9c23f4da | 1722 | "The LAN cannot have more secondary Bridge Ports\n"); |
b4d72c08 | 1723 | break; |
2063a5f5 KM |
1724 | case IPA_RC_SBP_OSA_CURRENT_PRIMARY: |
1725 | case IPA_RC_SBP_IQD_CURRENT_PRIMARY: | |
b4d72c08 EC |
1726 | rc = -EBUSY; |
1727 | dev_err(&card->gdev->dev, | |
9c23f4da | 1728 | "The device is already a primary Bridge Port\n"); |
b4d72c08 | 1729 | break; |
2063a5f5 KM |
1730 | case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN: |
1731 | case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN: | |
b4d72c08 EC |
1732 | rc = -EACCES; |
1733 | dev_err(&card->gdev->dev, | |
9c23f4da | 1734 | "The device is not authorized to be a Bridge Port\n"); |
b4d72c08 EC |
1735 | break; |
1736 | default: | |
1737 | rc = -EIO; | |
1738 | } | |
9c23f4da EC |
1739 | else |
1740 | switch (cbctl->ipa_rc) { | |
1741 | case IPA_RC_NOTSUPP: | |
ffb95251 | 1742 | rc = -EOPNOTSUPP; |
9c23f4da EC |
1743 | break; |
1744 | case IPA_RC_UNSUPPORTED_COMMAND: | |
ffb95251 | 1745 | rc = -EOPNOTSUPP; |
9c23f4da EC |
1746 | break; |
1747 | default: | |
1748 | rc = -EIO; | |
1749 | } | |
1750 | ||
b4d72c08 EC |
1751 | if (rc) { |
1752 | QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc); | |
1753 | QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc); | |
1754 | } | |
1755 | return rc; | |
1756 | } | |
1757 | ||
d65626ad JW |
1758 | static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card, |
1759 | enum qeth_ipa_sbp_cmd sbp_cmd, | |
1760 | unsigned int cmd_length) | |
9c23f4da | 1761 | { |
d65626ad JW |
1762 | enum qeth_ipa_cmds ipa_cmd = (card->info.type == QETH_CARD_TYPE_IQD) ? |
1763 | IPA_CMD_SETBRIDGEPORT_IQD : | |
1764 | IPA_CMD_SETBRIDGEPORT_OSA; | |
1765 | struct qeth_cmd_buffer *iob; | |
1766 | struct qeth_ipa_cmd *cmd; | |
1767 | ||
1768 | iob = qeth_get_ipacmd_buffer(card, ipa_cmd, 0); | |
1769 | if (!iob) | |
1770 | return iob; | |
ff5caa7a | 1771 | cmd = __ipa_cmd(iob); |
d65626ad JW |
1772 | cmd->data.sbp.hdr.cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + |
1773 | cmd_length; | |
1774 | cmd->data.sbp.hdr.command_code = sbp_cmd; | |
1775 | cmd->data.sbp.hdr.used_total = 1; | |
1776 | cmd->data.sbp.hdr.seq_no = 1; | |
1777 | return iob; | |
9c23f4da EC |
1778 | } |
1779 | ||
b4d72c08 EC |
1780 | static int qeth_bridgeport_query_support_cb(struct qeth_card *card, |
1781 | struct qeth_reply *reply, unsigned long data) | |
1782 | { | |
1783 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; | |
1784 | struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; | |
1785 | QETH_CARD_TEXT(card, 2, "brqsupcb"); | |
1786 | cbctl->ipa_rc = cmd->hdr.return_code; | |
1787 | cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; | |
1788 | if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) { | |
1789 | cbctl->data.supported = | |
1790 | cmd->data.sbp.data.query_cmds_supp.supported_cmds; | |
1791 | } else { | |
1792 | cbctl->data.supported = 0; | |
1793 | } | |
1794 | return 0; | |
1795 | } | |
1796 | ||
1797 | /** | |
1798 | * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. | |
1799 | * @card: qeth_card structure pointer. | |
1800 | * | |
1801 | * Sets bitmask of supported setbridgeport subfunctions in the qeth_card | |
1802 | * strucutre: card->options.sbp.supported_funcs. | |
1803 | */ | |
c044dc21 | 1804 | static void qeth_bridgeport_query_support(struct qeth_card *card) |
b4d72c08 EC |
1805 | { |
1806 | struct qeth_cmd_buffer *iob; | |
b4d72c08 EC |
1807 | struct _qeth_sbp_cbctl cbctl; |
1808 | ||
1809 | QETH_CARD_TEXT(card, 2, "brqsuppo"); | |
d65626ad JW |
1810 | iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED, |
1811 | sizeof(struct qeth_sbp_query_cmds_supp)); | |
1aec42bc TR |
1812 | if (!iob) |
1813 | return; | |
b4d72c08 EC |
1814 | if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, |
1815 | (void *)&cbctl) || | |
1816 | qeth_bridgeport_makerc(card, &cbctl, | |
1817 | IPA_SBP_QUERY_COMMANDS_SUPPORTED)) { | |
1818 | /* non-zero makerc signifies failure, and produce messages */ | |
1819 | card->options.sbp.role = QETH_SBP_ROLE_NONE; | |
1820 | return; | |
1821 | } | |
1822 | card->options.sbp.supported_funcs = cbctl.data.supported; | |
1823 | } | |
b4d72c08 EC |
1824 | |
1825 | static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, | |
1826 | struct qeth_reply *reply, unsigned long data) | |
1827 | { | |
1828 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; | |
1829 | struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; | |
1830 | struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; | |
1831 | ||
1832 | QETH_CARD_TEXT(card, 2, "brqprtcb"); | |
1833 | cbctl->ipa_rc = cmd->hdr.return_code; | |
1834 | cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; | |
1835 | if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0)) | |
1836 | return 0; | |
1837 | if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { | |
1838 | cbctl->cmd_rc = 0xffff; | |
1839 | QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); | |
1840 | return 0; | |
1841 | } | |
1842 | /* first entry contains the state of the local port */ | |
1843 | if (qports->num_entries > 0) { | |
1844 | if (cbctl->data.qports.role) | |
1845 | *cbctl->data.qports.role = qports->entry[0].role; | |
1846 | if (cbctl->data.qports.state) | |
1847 | *cbctl->data.qports.state = qports->entry[0].state; | |
1848 | } | |
1849 | return 0; | |
1850 | } | |
1851 | ||
1852 | /** | |
1853 | * qeth_bridgeport_query_ports() - query local bridgeport status. | |
1854 | * @card: qeth_card structure pointer. | |
1855 | * @role: Role of the port: 0-none, 1-primary, 2-secondary. | |
1856 | * @state: State of the port: 0-inactive, 1-standby, 2-active. | |
1857 | * | |
1858 | * Returns negative errno-compatible error indication or 0 on success. | |
1859 | * | |
1860 | * 'role' and 'state' are not updated in case of hardware operation failure. | |
1861 | */ | |
1862 | int qeth_bridgeport_query_ports(struct qeth_card *card, | |
1863 | enum qeth_sbp_roles *role, enum qeth_sbp_states *state) | |
1864 | { | |
1865 | int rc = 0; | |
1866 | struct qeth_cmd_buffer *iob; | |
b4d72c08 EC |
1867 | struct _qeth_sbp_cbctl cbctl = { |
1868 | .data = { | |
1869 | .qports = { | |
1870 | .role = role, | |
1871 | .state = state, | |
1872 | }, | |
1873 | }, | |
1874 | }; | |
1875 | ||
1876 | QETH_CARD_TEXT(card, 2, "brqports"); | |
1877 | if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) | |
1878 | return -EOPNOTSUPP; | |
d65626ad | 1879 | iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0); |
1aec42bc TR |
1880 | if (!iob) |
1881 | return -ENOMEM; | |
b4d72c08 EC |
1882 | rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, |
1883 | (void *)&cbctl); | |
c88394e7 | 1884 | if (rc < 0) |
b4d72c08 | 1885 | return rc; |
c88394e7 | 1886 | return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS); |
b4d72c08 EC |
1887 | } |
1888 | EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports); | |
1889 | ||
1890 | static int qeth_bridgeport_set_cb(struct qeth_card *card, | |
1891 | struct qeth_reply *reply, unsigned long data) | |
1892 | { | |
1893 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; | |
1894 | struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; | |
1895 | QETH_CARD_TEXT(card, 2, "brsetrcb"); | |
1896 | cbctl->ipa_rc = cmd->hdr.return_code; | |
1897 | cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; | |
1898 | return 0; | |
1899 | } | |
1900 | ||
1901 | /** | |
1902 | * qeth_bridgeport_setrole() - Assign primary role to the port. | |
1903 | * @card: qeth_card structure pointer. | |
1904 | * @role: Role to assign. | |
1905 | * | |
1906 | * Returns negative errno-compatible error indication or 0 on success. | |
1907 | */ | |
1908 | int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) | |
1909 | { | |
1910 | int rc = 0; | |
1911 | int cmdlength; | |
1912 | struct qeth_cmd_buffer *iob; | |
b4d72c08 EC |
1913 | struct _qeth_sbp_cbctl cbctl; |
1914 | enum qeth_ipa_sbp_cmd setcmd; | |
1915 | ||
1916 | QETH_CARD_TEXT(card, 2, "brsetrol"); | |
1917 | switch (role) { | |
1918 | case QETH_SBP_ROLE_NONE: | |
1919 | setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; | |
d65626ad | 1920 | cmdlength = sizeof(struct qeth_sbp_reset_role); |
b4d72c08 EC |
1921 | break; |
1922 | case QETH_SBP_ROLE_PRIMARY: | |
1923 | setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; | |
d65626ad | 1924 | cmdlength = sizeof(struct qeth_sbp_set_primary); |
b4d72c08 EC |
1925 | break; |
1926 | case QETH_SBP_ROLE_SECONDARY: | |
1927 | setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; | |
d65626ad | 1928 | cmdlength = sizeof(struct qeth_sbp_set_secondary); |
b4d72c08 EC |
1929 | break; |
1930 | default: | |
1931 | return -EINVAL; | |
1932 | } | |
1933 | if (!(card->options.sbp.supported_funcs & setcmd)) | |
1934 | return -EOPNOTSUPP; | |
d65626ad | 1935 | iob = qeth_sbp_build_cmd(card, setcmd, cmdlength); |
1aec42bc TR |
1936 | if (!iob) |
1937 | return -ENOMEM; | |
b4d72c08 EC |
1938 | rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, |
1939 | (void *)&cbctl); | |
c88394e7 | 1940 | if (rc < 0) |
b4d72c08 | 1941 | return rc; |
c88394e7 | 1942 | return qeth_bridgeport_makerc(card, &cbctl, setcmd); |
b4d72c08 EC |
1943 | } |
1944 | ||
9f48b9db EC |
1945 | /** |
1946 | * qeth_anset_makerc() - derive "traditional" error from hardware codes. | |
1947 | * @card: qeth_card structure pointer, for debug messages. | |
1948 | * | |
1949 | * Returns negative errno-compatible error indication or 0 on success. | |
1950 | */ | |
1951 | static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) | |
1952 | { | |
1953 | int rc; | |
1954 | ||
1955 | if (pnso_rc == 0) | |
1956 | switch (response) { | |
1957 | case 0x0001: | |
1958 | rc = 0; | |
1959 | break; | |
1960 | case 0x0004: | |
1961 | case 0x0100: | |
1962 | case 0x0106: | |
ffb95251 | 1963 | rc = -EOPNOTSUPP; |
9f48b9db EC |
1964 | dev_err(&card->gdev->dev, |
1965 | "Setting address notification failed\n"); | |
1966 | break; | |
1967 | case 0x0107: | |
1968 | rc = -EAGAIN; | |
1969 | break; | |
1970 | default: | |
1971 | rc = -EIO; | |
1972 | } | |
1973 | else | |
1974 | rc = -EIO; | |
1975 | ||
1976 | if (rc) { | |
1977 | QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); | |
1978 | QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); | |
1979 | } | |
1980 | return rc; | |
1981 | } | |
1982 | ||
1983 | static void qeth_bridgeport_an_set_cb(void *priv, | |
1984 | enum qdio_brinfo_entry_type type, void *entry) | |
1985 | { | |
1986 | struct qeth_card *card = (struct qeth_card *)priv; | |
1987 | struct qdio_brinfo_entry_l2 *l2entry; | |
1988 | u8 code; | |
1989 | ||
1990 | if (type != l2_addr_lnid) { | |
1991 | WARN_ON_ONCE(1); | |
1992 | return; | |
1993 | } | |
1994 | ||
1995 | l2entry = (struct qdio_brinfo_entry_l2 *)entry; | |
1996 | code = IPA_ADDR_CHANGE_CODE_MACADDR; | |
1997 | if (l2entry->addr_lnid.lnid) | |
1998 | code |= IPA_ADDR_CHANGE_CODE_VLANID; | |
1999 | qeth_bridge_emit_host_event(card, anev_reg_unreg, code, | |
2000 | (struct net_if_token *)&l2entry->nit, | |
2001 | (struct mac_addr_lnid *)&l2entry->addr_lnid); | |
2002 | } | |
2003 | ||
2004 | /** | |
2005 | * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification | |
2006 | * @card: qeth_card structure pointer. | |
2007 | * @enable: 0 - disable, non-zero - enable notifications | |
2008 | * | |
2009 | * Returns negative errno-compatible error indication or 0 on success. | |
2010 | * | |
2011 | * On enable, emits a series of address notifications udev events for all | |
2012 | * currently registered hosts. | |
2013 | */ | |
2014 | int qeth_bridgeport_an_set(struct qeth_card *card, int enable) | |
2015 | { | |
2016 | int rc; | |
2017 | u16 response; | |
2018 | struct ccw_device *ddev; | |
2019 | struct subchannel_id schid; | |
2020 | ||
2021 | if (!card) | |
2022 | return -EINVAL; | |
2023 | if (!card->options.sbp.supported_funcs) | |
2024 | return -EOPNOTSUPP; | |
2025 | ddev = CARD_DDEV(card); | |
2026 | ccw_device_get_schid(ddev, &schid); | |
2027 | ||
2028 | if (enable) { | |
2029 | qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); | |
2030 | rc = qdio_pnso_brinfo(schid, 1, &response, | |
2031 | qeth_bridgeport_an_set_cb, card); | |
2032 | } else | |
2033 | rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); | |
2034 | return qeth_anset_makerc(card, rc, response); | |
2035 | } | |
2036 | EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set); | |
2037 | ||
caa1f0b1 HW |
2038 | static bool qeth_bridgeport_is_in_use(struct qeth_card *card) |
2039 | { | |
2040 | return (card->options.sbp.role || card->options.sbp.reflect_promisc || | |
2041 | card->options.sbp.hostnotification); | |
2042 | } | |
2043 | ||
a45b3faf HW |
2044 | /* VNIC Characteristics support */ |
2045 | ||
2046 | /* handle VNICC IPA command return codes; convert to error codes */ | |
2047 | static int qeth_l2_vnicc_makerc(struct qeth_card *card, int ipa_rc) | |
2048 | { | |
2049 | int rc; | |
2050 | ||
2051 | switch (ipa_rc) { | |
2052 | case IPA_RC_SUCCESS: | |
2053 | return ipa_rc; | |
2054 | case IPA_RC_L2_UNSUPPORTED_CMD: | |
2055 | case IPA_RC_NOTSUPP: | |
2056 | rc = -EOPNOTSUPP; | |
2057 | break; | |
2058 | case IPA_RC_VNICC_OOSEQ: | |
2059 | rc = -EALREADY; | |
2060 | break; | |
2061 | case IPA_RC_VNICC_VNICBP: | |
2062 | rc = -EBUSY; | |
2063 | break; | |
2064 | case IPA_RC_L2_ADDR_TABLE_FULL: | |
2065 | rc = -ENOSPC; | |
2066 | break; | |
2067 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
2068 | rc = -EACCES; | |
2069 | break; | |
2070 | default: | |
2071 | rc = -EIO; | |
2072 | } | |
2073 | ||
2074 | QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc); | |
2075 | return rc; | |
2076 | } | |
2077 | ||
2078 | /* generic VNICC request call back control */ | |
2079 | struct _qeth_l2_vnicc_request_cbctl { | |
2080 | u32 sub_cmd; | |
caa1f0b1 HW |
2081 | struct { |
2082 | u32 vnic_char; | |
349d13d5 | 2083 | u32 timeout; |
caa1f0b1 HW |
2084 | } param; |
2085 | struct { | |
349d13d5 HW |
2086 | union{ |
2087 | u32 *sup_cmds; | |
2088 | u32 *timeout; | |
2089 | }; | |
caa1f0b1 | 2090 | } result; |
a45b3faf HW |
2091 | }; |
2092 | ||
2093 | /* generic VNICC request call back */ | |
2094 | static int qeth_l2_vnicc_request_cb(struct qeth_card *card, | |
2095 | struct qeth_reply *reply, | |
2096 | unsigned long data) | |
2097 | { | |
caa1f0b1 HW |
2098 | struct _qeth_l2_vnicc_request_cbctl *cbctl = |
2099 | (struct _qeth_l2_vnicc_request_cbctl *) reply->param; | |
a45b3faf HW |
2100 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
2101 | struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc; | |
2102 | ||
2103 | QETH_CARD_TEXT(card, 2, "vniccrcb"); | |
2104 | if (cmd->hdr.return_code) | |
2105 | return 0; | |
2106 | /* return results to caller */ | |
2107 | card->options.vnicc.sup_chars = rep->hdr.sup; | |
2108 | card->options.vnicc.cur_chars = rep->hdr.cur; | |
2109 | ||
caa1f0b1 HW |
2110 | if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS) |
2111 | *cbctl->result.sup_cmds = rep->query_cmds.sup_cmds; | |
2112 | ||
349d13d5 HW |
2113 | if (cbctl->sub_cmd == IPA_VNICC_GET_TIMEOUT) |
2114 | *cbctl->result.timeout = rep->getset_timeout.timeout; | |
2115 | ||
a45b3faf HW |
2116 | return 0; |
2117 | } | |
2118 | ||
2119 | /* generic VNICC request */ | |
2120 | static int qeth_l2_vnicc_request(struct qeth_card *card, | |
2121 | struct _qeth_l2_vnicc_request_cbctl *cbctl) | |
2122 | { | |
2123 | struct qeth_ipacmd_vnicc *req; | |
2124 | struct qeth_cmd_buffer *iob; | |
2125 | struct qeth_ipa_cmd *cmd; | |
2126 | int rc; | |
2127 | ||
2128 | QETH_CARD_TEXT(card, 2, "vniccreq"); | |
2129 | ||
2130 | /* get new buffer for request */ | |
2131 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_VNICC, 0); | |
2132 | if (!iob) | |
2133 | return -ENOMEM; | |
2134 | ||
2135 | /* create header for request */ | |
ff5caa7a | 2136 | cmd = __ipa_cmd(iob); |
a45b3faf HW |
2137 | req = &cmd->data.vnicc; |
2138 | ||
2139 | /* create sub command header for request */ | |
2140 | req->sub_hdr.data_length = sizeof(req->sub_hdr); | |
2141 | req->sub_hdr.sub_command = cbctl->sub_cmd; | |
2142 | ||
2143 | /* create sub command specific request fields */ | |
2144 | switch (cbctl->sub_cmd) { | |
2145 | case IPA_VNICC_QUERY_CHARS: | |
2146 | break; | |
caa1f0b1 HW |
2147 | case IPA_VNICC_QUERY_CMDS: |
2148 | req->sub_hdr.data_length += sizeof(req->query_cmds); | |
2149 | req->query_cmds.vnic_char = cbctl->param.vnic_char; | |
2150 | break; | |
2151 | case IPA_VNICC_ENABLE: | |
2152 | case IPA_VNICC_DISABLE: | |
2153 | req->sub_hdr.data_length += sizeof(req->set_char); | |
2154 | req->set_char.vnic_char = cbctl->param.vnic_char; | |
2155 | break; | |
349d13d5 HW |
2156 | case IPA_VNICC_SET_TIMEOUT: |
2157 | req->getset_timeout.timeout = cbctl->param.timeout; | |
2158 | /* fallthrough */ | |
2159 | case IPA_VNICC_GET_TIMEOUT: | |
2160 | req->sub_hdr.data_length += sizeof(req->getset_timeout); | |
2161 | req->getset_timeout.vnic_char = cbctl->param.vnic_char; | |
2162 | break; | |
a45b3faf HW |
2163 | default: |
2164 | qeth_release_buffer(iob->channel, iob); | |
2165 | return -EOPNOTSUPP; | |
2166 | } | |
2167 | ||
2168 | /* send request */ | |
2169 | rc = qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, | |
2170 | (void *) cbctl); | |
2171 | ||
2172 | return qeth_l2_vnicc_makerc(card, rc); | |
2173 | } | |
2174 | ||
2175 | /* VNICC query VNIC characteristics request */ | |
2176 | static int qeth_l2_vnicc_query_chars(struct qeth_card *card) | |
2177 | { | |
2178 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
2179 | ||
2180 | /* prepare callback control */ | |
2181 | cbctl.sub_cmd = IPA_VNICC_QUERY_CHARS; | |
2182 | ||
2183 | QETH_CARD_TEXT(card, 2, "vniccqch"); | |
2184 | return qeth_l2_vnicc_request(card, &cbctl); | |
2185 | } | |
2186 | ||
caa1f0b1 HW |
2187 | /* VNICC query sub commands request */ |
2188 | static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char, | |
2189 | u32 *sup_cmds) | |
2190 | { | |
2191 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
2192 | ||
2193 | /* prepare callback control */ | |
2194 | cbctl.sub_cmd = IPA_VNICC_QUERY_CMDS; | |
2195 | cbctl.param.vnic_char = vnic_char; | |
2196 | cbctl.result.sup_cmds = sup_cmds; | |
2197 | ||
2198 | QETH_CARD_TEXT(card, 2, "vniccqcm"); | |
2199 | return qeth_l2_vnicc_request(card, &cbctl); | |
2200 | } | |
2201 | ||
2202 | /* VNICC enable/disable characteristic request */ | |
2203 | static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char, | |
2204 | u32 cmd) | |
2205 | { | |
2206 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
2207 | ||
2208 | /* prepare callback control */ | |
2209 | cbctl.sub_cmd = cmd; | |
2210 | cbctl.param.vnic_char = vnic_char; | |
2211 | ||
2212 | QETH_CARD_TEXT(card, 2, "vniccedc"); | |
2213 | return qeth_l2_vnicc_request(card, &cbctl); | |
2214 | } | |
2215 | ||
349d13d5 HW |
2216 | /* VNICC get/set timeout for characteristic request */ |
2217 | static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc, | |
2218 | u32 cmd, u32 *timeout) | |
2219 | { | |
2220 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
2221 | ||
2222 | /* prepare callback control */ | |
2223 | cbctl.sub_cmd = cmd; | |
2224 | cbctl.param.vnic_char = vnicc; | |
2225 | if (cmd == IPA_VNICC_SET_TIMEOUT) | |
2226 | cbctl.param.timeout = *timeout; | |
2227 | if (cmd == IPA_VNICC_GET_TIMEOUT) | |
2228 | cbctl.result.timeout = timeout; | |
2229 | ||
2230 | QETH_CARD_TEXT(card, 2, "vniccgst"); | |
2231 | return qeth_l2_vnicc_request(card, &cbctl); | |
2232 | } | |
2233 | ||
caa1f0b1 HW |
2234 | /* set current VNICC flag state; called from sysfs store function */ |
2235 | int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state) | |
2236 | { | |
2237 | int rc = 0; | |
2238 | u32 cmd; | |
2239 | ||
2240 | QETH_CARD_TEXT(card, 2, "vniccsch"); | |
2241 | ||
2242 | /* do not change anything if BridgePort is enabled */ | |
2243 | if (qeth_bridgeport_is_in_use(card)) | |
2244 | return -EBUSY; | |
2245 | ||
2246 | /* check if characteristic and enable/disable are supported */ | |
2247 | if (!(card->options.vnicc.sup_chars & vnicc) || | |
2248 | !(card->options.vnicc.set_char_sup & vnicc)) | |
2249 | return -EOPNOTSUPP; | |
2250 | ||
2251 | /* set enable/disable command and store wanted characteristic */ | |
2252 | if (state) { | |
2253 | cmd = IPA_VNICC_ENABLE; | |
2254 | card->options.vnicc.wanted_chars |= vnicc; | |
2255 | } else { | |
2256 | cmd = IPA_VNICC_DISABLE; | |
2257 | card->options.vnicc.wanted_chars &= ~vnicc; | |
2258 | } | |
2259 | ||
2260 | /* do we need to do anything? */ | |
2261 | if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars) | |
2262 | return rc; | |
2263 | ||
2264 | /* if card is not ready, simply stop here */ | |
2265 | if (!qeth_card_hw_is_reachable(card)) { | |
2266 | if (state) | |
2267 | card->options.vnicc.cur_chars |= vnicc; | |
2268 | else | |
2269 | card->options.vnicc.cur_chars &= ~vnicc; | |
2270 | return rc; | |
2271 | } | |
2272 | ||
2273 | rc = qeth_l2_vnicc_set_char(card, vnicc, cmd); | |
2274 | if (rc) | |
2275 | card->options.vnicc.wanted_chars = | |
2276 | card->options.vnicc.cur_chars; | |
349d13d5 HW |
2277 | else { |
2278 | /* successful online VNICC change; handle special cases */ | |
2279 | if (state && vnicc == QETH_VNICC_RX_BCAST) | |
2280 | card->options.vnicc.rx_bcast_enabled = true; | |
2281 | if (!state && vnicc == QETH_VNICC_LEARNING) | |
2282 | qeth_l2_vnicc_recover_timeout(card, vnicc, | |
2283 | &card->options.vnicc.learning_timeout); | |
2284 | } | |
caa1f0b1 HW |
2285 | |
2286 | return rc; | |
2287 | } | |
2288 | ||
2289 | /* get current VNICC flag state; called from sysfs show function */ | |
2290 | int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state) | |
2291 | { | |
2292 | int rc = 0; | |
2293 | ||
2294 | QETH_CARD_TEXT(card, 2, "vniccgch"); | |
2295 | ||
2296 | /* do not get anything if BridgePort is enabled */ | |
2297 | if (qeth_bridgeport_is_in_use(card)) | |
2298 | return -EBUSY; | |
2299 | ||
2300 | /* check if characteristic is supported */ | |
2301 | if (!(card->options.vnicc.sup_chars & vnicc)) | |
2302 | return -EOPNOTSUPP; | |
2303 | ||
2304 | /* if card is ready, query current VNICC state */ | |
2305 | if (qeth_card_hw_is_reachable(card)) | |
2306 | rc = qeth_l2_vnicc_query_chars(card); | |
2307 | ||
2308 | *state = (card->options.vnicc.cur_chars & vnicc) ? true : false; | |
2309 | return rc; | |
2310 | } | |
2311 | ||
349d13d5 HW |
2312 | /* set VNICC timeout; called from sysfs store function. Currently, only learning |
2313 | * supports timeout | |
2314 | */ | |
2315 | int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout) | |
2316 | { | |
2317 | int rc = 0; | |
2318 | ||
2319 | QETH_CARD_TEXT(card, 2, "vniccsto"); | |
2320 | ||
2321 | /* do not change anything if BridgePort is enabled */ | |
2322 | if (qeth_bridgeport_is_in_use(card)) | |
2323 | return -EBUSY; | |
2324 | ||
2325 | /* check if characteristic and set_timeout are supported */ | |
2326 | if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || | |
2327 | !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) | |
2328 | return -EOPNOTSUPP; | |
2329 | ||
2330 | /* do we need to do anything? */ | |
2331 | if (card->options.vnicc.learning_timeout == timeout) | |
2332 | return rc; | |
2333 | ||
2334 | /* if card is not ready, simply store the value internally and return */ | |
2335 | if (!qeth_card_hw_is_reachable(card)) { | |
2336 | card->options.vnicc.learning_timeout = timeout; | |
2337 | return rc; | |
2338 | } | |
2339 | ||
2340 | /* send timeout value to card; if successful, store value internally */ | |
2341 | rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, | |
2342 | IPA_VNICC_SET_TIMEOUT, &timeout); | |
2343 | if (!rc) | |
2344 | card->options.vnicc.learning_timeout = timeout; | |
2345 | ||
2346 | return rc; | |
2347 | } | |
2348 | ||
2349 | /* get current VNICC timeout; called from sysfs show function. Currently, only | |
2350 | * learning supports timeout | |
2351 | */ | |
2352 | int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout) | |
2353 | { | |
2354 | int rc = 0; | |
2355 | ||
2356 | QETH_CARD_TEXT(card, 2, "vniccgto"); | |
2357 | ||
2358 | /* do not get anything if BridgePort is enabled */ | |
2359 | if (qeth_bridgeport_is_in_use(card)) | |
2360 | return -EBUSY; | |
2361 | ||
2362 | /* check if characteristic and get_timeout are supported */ | |
2363 | if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || | |
2364 | !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) | |
2365 | return -EOPNOTSUPP; | |
2366 | /* if card is ready, get timeout. Otherwise, just return stored value */ | |
2367 | *timeout = card->options.vnicc.learning_timeout; | |
2368 | if (qeth_card_hw_is_reachable(card)) | |
2369 | rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, | |
2370 | IPA_VNICC_GET_TIMEOUT, | |
2371 | timeout); | |
2372 | ||
2373 | return rc; | |
2374 | } | |
2375 | ||
caa1f0b1 HW |
2376 | /* check if VNICC is currently enabled */ |
2377 | bool qeth_l2_vnicc_is_in_use(struct qeth_card *card) | |
2378 | { | |
2379 | /* if everything is turned off, VNICC is not active */ | |
2380 | if (!card->options.vnicc.cur_chars) | |
2381 | return false; | |
2382 | /* default values are only OK if rx_bcast was not enabled by user | |
2383 | * or the card is offline. | |
2384 | */ | |
2385 | if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) { | |
2386 | if (!card->options.vnicc.rx_bcast_enabled || | |
2387 | !qeth_card_hw_is_reachable(card)) | |
2388 | return false; | |
2389 | } | |
2390 | return true; | |
2391 | } | |
2392 | ||
349d13d5 HW |
2393 | /* recover user timeout setting */ |
2394 | static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, | |
2395 | u32 *timeout) | |
2396 | { | |
2397 | if (card->options.vnicc.sup_chars & vnicc && | |
2398 | card->options.vnicc.getset_timeout_sup & vnicc && | |
2399 | !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT, | |
2400 | timeout)) | |
2401 | return false; | |
2402 | *timeout = QETH_VNICC_DEFAULT_TIMEOUT; | |
2403 | return true; | |
2404 | } | |
2405 | ||
caa1f0b1 HW |
2406 | /* recover user characteristic setting */ |
2407 | static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc, | |
2408 | bool enable) | |
2409 | { | |
2410 | u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE; | |
2411 | ||
2412 | if (card->options.vnicc.sup_chars & vnicc && | |
2413 | card->options.vnicc.set_char_sup & vnicc && | |
2414 | !qeth_l2_vnicc_set_char(card, vnicc, cmd)) | |
2415 | return false; | |
2416 | card->options.vnicc.wanted_chars &= ~vnicc; | |
2417 | card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc; | |
2418 | return true; | |
2419 | } | |
2420 | ||
a45b3faf HW |
2421 | /* (re-)initialize VNICC */ |
2422 | static void qeth_l2_vnicc_init(struct qeth_card *card) | |
2423 | { | |
349d13d5 | 2424 | u32 *timeout = &card->options.vnicc.learning_timeout; |
caa1f0b1 HW |
2425 | unsigned int chars_len, i; |
2426 | unsigned long chars_tmp; | |
2427 | u32 sup_cmds, vnicc; | |
2428 | bool enable, error; | |
2429 | ||
a45b3faf | 2430 | QETH_CARD_TEXT(card, 2, "vniccini"); |
caa1f0b1 HW |
2431 | /* reset rx_bcast */ |
2432 | card->options.vnicc.rx_bcast_enabled = 0; | |
a45b3faf HW |
2433 | /* initial query and storage of VNIC characteristics */ |
2434 | if (qeth_l2_vnicc_query_chars(card)) { | |
349d13d5 HW |
2435 | if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT || |
2436 | *timeout != QETH_VNICC_DEFAULT_TIMEOUT) | |
caa1f0b1 HW |
2437 | dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); |
2438 | /* fail quietly if user didn't change the default config */ | |
a45b3faf HW |
2439 | card->options.vnicc.sup_chars = 0; |
2440 | card->options.vnicc.cur_chars = 0; | |
caa1f0b1 HW |
2441 | card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; |
2442 | return; | |
a45b3faf | 2443 | } |
caa1f0b1 HW |
2444 | /* get supported commands for each supported characteristic */ |
2445 | chars_tmp = card->options.vnicc.sup_chars; | |
2446 | chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE; | |
2447 | for_each_set_bit(i, &chars_tmp, chars_len) { | |
2448 | vnicc = BIT(i); | |
2449 | qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds); | |
349d13d5 HW |
2450 | if (!(sup_cmds & IPA_VNICC_SET_TIMEOUT) || |
2451 | !(sup_cmds & IPA_VNICC_GET_TIMEOUT)) | |
2452 | card->options.vnicc.getset_timeout_sup &= ~vnicc; | |
caa1f0b1 HW |
2453 | if (!(sup_cmds & IPA_VNICC_ENABLE) || |
2454 | !(sup_cmds & IPA_VNICC_DISABLE)) | |
2455 | card->options.vnicc.set_char_sup &= ~vnicc; | |
2456 | } | |
2457 | /* enforce assumed default values and recover settings, if changed */ | |
349d13d5 HW |
2458 | error = qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING, |
2459 | timeout); | |
caa1f0b1 HW |
2460 | chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT; |
2461 | chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE; | |
2462 | chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE; | |
2463 | for_each_set_bit(i, &chars_tmp, chars_len) { | |
2464 | vnicc = BIT(i); | |
2465 | enable = card->options.vnicc.wanted_chars & vnicc; | |
2466 | error |= qeth_l2_vnicc_recover_char(card, vnicc, enable); | |
2467 | } | |
2468 | if (error) | |
2469 | dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); | |
2470 | } | |
2471 | ||
2472 | /* configure default values of VNIC characteristics */ | |
2473 | static void qeth_l2_vnicc_set_defaults(struct qeth_card *card) | |
2474 | { | |
2475 | /* characteristics values */ | |
2476 | card->options.vnicc.sup_chars = QETH_VNICC_ALL; | |
2477 | card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT; | |
349d13d5 | 2478 | card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT; |
caa1f0b1 HW |
2479 | /* supported commands */ |
2480 | card->options.vnicc.set_char_sup = QETH_VNICC_ALL; | |
349d13d5 | 2481 | card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING; |
caa1f0b1 HW |
2482 | /* settings wanted by users */ |
2483 | card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; | |
a45b3faf HW |
2484 | } |
2485 | ||
4a71df50 FB |
2486 | module_init(qeth_l2_init); |
2487 | module_exit(qeth_l2_exit); | |
2488 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
2489 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
2490 | MODULE_LICENSE("GPL"); |