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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> |
ccffad25 | 20 | #include <linux/list.h> |
fe5c8028 LD |
21 | #include <linux/hash.h> |
22 | #include <linux/hashtable.h> | |
ec61bd2f | 23 | #include <asm/setup.h> |
4a71df50 | 24 | #include "qeth_core.h" |
b4d72c08 | 25 | #include "qeth_l2.h" |
4a71df50 | 26 | |
4a71df50 | 27 | static int qeth_l2_set_offline(struct ccwgroup_device *); |
c044dc21 EC |
28 | static void qeth_bridgeport_query_support(struct qeth_card *card); |
29 | static void qeth_bridge_state_change(struct qeth_card *card, | |
30 | struct qeth_ipa_cmd *cmd); | |
31 | static void qeth_bridge_host_event(struct qeth_card *card, | |
32 | struct qeth_ipa_cmd *cmd); | |
caa1f0b1 | 33 | static void qeth_l2_vnicc_set_defaults(struct qeth_card *card); |
a45b3faf | 34 | static void qeth_l2_vnicc_init(struct qeth_card *card); |
349d13d5 HW |
35 | static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, |
36 | u32 *timeout); | |
4a71df50 | 37 | |
742d4d40 | 38 | static int qeth_l2_setdelmac_makerc(struct qeth_card *card, u16 retcode) |
4a71df50 | 39 | { |
efbbc1d5 | 40 | int rc; |
4a71df50 | 41 | |
efbbc1d5 | 42 | if (retcode) |
1aec42bc | 43 | QETH_CARD_TEXT_(card, 2, "err%04x", retcode); |
efbbc1d5 EC |
44 | switch (retcode) { |
45 | case IPA_RC_SUCCESS: | |
46 | rc = 0; | |
47 | break; | |
48 | case IPA_RC_L2_UNSUPPORTED_CMD: | |
ffb95251 | 49 | rc = -EOPNOTSUPP; |
efbbc1d5 EC |
50 | break; |
51 | case IPA_RC_L2_ADDR_TABLE_FULL: | |
52 | rc = -ENOSPC; | |
53 | break; | |
54 | case IPA_RC_L2_DUP_MAC: | |
55 | case IPA_RC_L2_DUP_LAYER3_MAC: | |
56 | rc = -EEXIST; | |
57 | break; | |
58 | case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: | |
59 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
60 | rc = -EPERM; | |
61 | break; | |
62 | case IPA_RC_L2_MAC_NOT_FOUND: | |
63 | rc = -ENOENT; | |
64 | break; | |
65 | default: | |
66 | rc = -EIO; | |
67 | break; | |
4a71df50 | 68 | } |
efbbc1d5 | 69 | return rc; |
4a71df50 FB |
70 | } |
71 | ||
742d4d40 JW |
72 | static int qeth_l2_send_setdelmac_cb(struct qeth_card *card, |
73 | struct qeth_reply *reply, | |
74 | unsigned long data) | |
75 | { | |
76 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; | |
77 | ||
78 | return qeth_l2_setdelmac_makerc(card, cmd->hdr.return_code); | |
79 | } | |
80 | ||
ac988d78 JW |
81 | static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, |
82 | enum qeth_ipa_cmds ipacmd) | |
83 | { | |
84 | struct qeth_ipa_cmd *cmd; | |
85 | struct qeth_cmd_buffer *iob; | |
86 | ||
87 | QETH_CARD_TEXT(card, 2, "L2sdmac"); | |
88 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); | |
89 | if (!iob) | |
90 | return -ENOMEM; | |
ff5caa7a | 91 | cmd = __ipa_cmd(iob); |
99f0b85d JW |
92 | cmd->data.setdelmac.mac_length = ETH_ALEN; |
93 | ether_addr_copy(cmd->data.setdelmac.mac, mac); | |
742d4d40 | 94 | return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelmac_cb, NULL); |
ac988d78 JW |
95 | } |
96 | ||
97 | static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) | |
98 | { | |
99 | int rc; | |
100 | ||
101 | QETH_CARD_TEXT(card, 2, "L2Setmac"); | |
102 | rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC); | |
103 | if (rc == 0) { | |
ac988d78 | 104 | dev_info(&card->gdev->dev, |
654e3d48 | 105 | "MAC address %pM successfully registered\n", mac); |
ac988d78 | 106 | } else { |
ac988d78 JW |
107 | switch (rc) { |
108 | case -EEXIST: | |
109 | dev_warn(&card->gdev->dev, | |
110 | "MAC address %pM already exists\n", mac); | |
111 | break; | |
112 | case -EPERM: | |
113 | dev_warn(&card->gdev->dev, | |
114 | "MAC address %pM is not authorized\n", mac); | |
115 | break; | |
116 | } | |
117 | } | |
118 | return rc; | |
119 | } | |
120 | ||
8174aa8a | 121 | static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac) |
4a71df50 | 122 | { |
9d0a58fb | 123 | enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? |
8174aa8a | 124 | IPA_CMD_SETGMAC : IPA_CMD_SETVMAC; |
efbbc1d5 | 125 | int rc; |
4a71df50 | 126 | |
8174aa8a JW |
127 | QETH_CARD_TEXT(card, 2, "L2Wmac"); |
128 | rc = qeth_l2_send_setdelmac(card, mac, cmd); | |
efbbc1d5 | 129 | if (rc == -EEXIST) |
e19e5be8 JW |
130 | QETH_DBF_MESSAGE(2, "MAC already registered on device %x\n", |
131 | CARD_DEVID(card)); | |
efbbc1d5 | 132 | else if (rc) |
e19e5be8 JW |
133 | QETH_DBF_MESSAGE(2, "Failed to register MAC on device %x: %d\n", |
134 | CARD_DEVID(card), rc); | |
efbbc1d5 | 135 | return rc; |
4a71df50 FB |
136 | } |
137 | ||
8174aa8a | 138 | static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac) |
4a71df50 | 139 | { |
9d0a58fb | 140 | enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? |
8174aa8a | 141 | IPA_CMD_DELGMAC : IPA_CMD_DELVMAC; |
efbbc1d5 EC |
142 | int rc; |
143 | ||
8174aa8a JW |
144 | QETH_CARD_TEXT(card, 2, "L2Rmac"); |
145 | rc = qeth_l2_send_setdelmac(card, mac, cmd); | |
efbbc1d5 | 146 | if (rc) |
e19e5be8 JW |
147 | QETH_DBF_MESSAGE(2, "Failed to delete MAC on device %u: %d\n", |
148 | CARD_DEVID(card), rc); | |
efbbc1d5 | 149 | return rc; |
4a71df50 FB |
150 | } |
151 | ||
d0c74825 | 152 | static void qeth_l2_drain_rx_mode_cache(struct qeth_card *card) |
4a71df50 | 153 | { |
fe5c8028 LD |
154 | struct qeth_mac *mac; |
155 | struct hlist_node *tmp; | |
156 | int i; | |
4a71df50 | 157 | |
fe5c8028 | 158 | hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { |
fe5c8028 LD |
159 | hash_del(&mac->hnode); |
160 | kfree(mac); | |
4a71df50 | 161 | } |
4a71df50 FB |
162 | } |
163 | ||
b0abc4f5 JW |
164 | static void qeth_l2_fill_header(struct qeth_qdio_out_q *queue, |
165 | struct qeth_hdr *hdr, struct sk_buff *skb, | |
166 | int ipv, int cast_type, unsigned int data_len) | |
4a71df50 | 167 | { |
0aef8392 | 168 | struct vlan_ethhdr *veth = vlan_eth_hdr(skb); |
4a71df50 | 169 | |
ae79fe03 | 170 | hdr->hdr.l2.pkt_length = data_len; |
4a71df50 | 171 | |
0aef8392 JW |
172 | if (skb_is_gso(skb)) { |
173 | hdr->hdr.l2.id = QETH_HEADER_TYPE_L2_TSO; | |
174 | } else { | |
175 | hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; | |
176 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
177 | qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], ipv); | |
b0abc4f5 | 178 | QETH_TXQ_STAT_INC(queue, skbs_csum); |
0aef8392 | 179 | } |
fc69660b JW |
180 | } |
181 | ||
4a71df50 FB |
182 | /* set byte byte 3 to casting flags */ |
183 | if (cast_type == RTN_MULTICAST) | |
184 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; | |
185 | else if (cast_type == RTN_BROADCAST) | |
186 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; | |
187 | else | |
ce73e10e | 188 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; |
4a71df50 | 189 | |
4a71df50 FB |
190 | /* VSWITCH relies on the VLAN |
191 | * information to be present in | |
192 | * the QDIO header */ | |
193 | if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { | |
194 | hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; | |
195 | hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); | |
196 | } | |
197 | } | |
198 | ||
742d4d40 | 199 | static int qeth_l2_setdelvlan_makerc(struct qeth_card *card, u16 retcode) |
2aa48671 JW |
200 | { |
201 | if (retcode) | |
202 | QETH_CARD_TEXT_(card, 2, "err%04x", retcode); | |
203 | ||
204 | switch (retcode) { | |
205 | case IPA_RC_SUCCESS: | |
206 | return 0; | |
207 | case IPA_RC_L2_INVALID_VLAN_ID: | |
208 | return -EINVAL; | |
209 | case IPA_RC_L2_DUP_VLAN_ID: | |
210 | return -EEXIST; | |
211 | case IPA_RC_L2_VLAN_ID_NOT_FOUND: | |
212 | return -ENOENT; | |
213 | case IPA_RC_L2_VLAN_ID_NOT_ALLOWED: | |
214 | return -EPERM; | |
2aa48671 JW |
215 | default: |
216 | return -EIO; | |
217 | } | |
218 | } | |
219 | ||
4a71df50 | 220 | static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, |
2aa48671 JW |
221 | struct qeth_reply *reply, |
222 | unsigned long data) | |
4a71df50 | 223 | { |
2aa48671 | 224 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
4a71df50 | 225 | |
847a50fd | 226 | QETH_CARD_TEXT(card, 2, "L2sdvcb"); |
4a71df50 | 227 | if (cmd->hdr.return_code) { |
e19e5be8 | 228 | QETH_DBF_MESSAGE(2, "Error in processing VLAN %u on device %x: %#x.\n", |
2aa48671 | 229 | cmd->data.setdelvlan.vlan_id, |
e19e5be8 | 230 | CARD_DEVID(card), cmd->hdr.return_code); |
847a50fd | 231 | QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); |
4a71df50 | 232 | } |
742d4d40 | 233 | return qeth_l2_setdelvlan_makerc(card, cmd->hdr.return_code); |
4a71df50 FB |
234 | } |
235 | ||
236 | static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, | |
2aa48671 | 237 | enum qeth_ipa_cmds ipacmd) |
4a71df50 FB |
238 | { |
239 | struct qeth_ipa_cmd *cmd; | |
240 | struct qeth_cmd_buffer *iob; | |
241 | ||
847a50fd | 242 | QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); |
4a71df50 | 243 | iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); |
1aec42bc TR |
244 | if (!iob) |
245 | return -ENOMEM; | |
ff5caa7a | 246 | cmd = __ipa_cmd(iob); |
4a71df50 | 247 | cmd->data.setdelvlan.vlan_id = i; |
742d4d40 | 248 | return qeth_send_ipa_cmd(card, iob, qeth_l2_send_setdelvlan_cb, NULL); |
4a71df50 FB |
249 | } |
250 | ||
80d5c368 PM |
251 | static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, |
252 | __be16 proto, u16 vid) | |
4a71df50 | 253 | { |
509e2562 | 254 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 255 | |
847a50fd | 256 | QETH_CARD_TEXT_(card, 4, "aid:%d", vid); |
10651db7 | 257 | if (!vid) |
8e586137 | 258 | return 0; |
e6e771b3 | 259 | |
5fc692a7 | 260 | return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); |
4a71df50 FB |
261 | } |
262 | ||
80d5c368 PM |
263 | static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, |
264 | __be16 proto, u16 vid) | |
4a71df50 | 265 | { |
509e2562 | 266 | struct qeth_card *card = dev->ml_priv; |
4a71df50 | 267 | |
847a50fd | 268 | QETH_CARD_TEXT_(card, 4, "kid:%d", vid); |
5fc692a7 JW |
269 | if (!vid) |
270 | return 0; | |
e6e771b3 | 271 | |
5fc692a7 | 272 | return qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); |
4a71df50 FB |
273 | } |
274 | ||
d4560150 | 275 | static void qeth_l2_stop_card(struct qeth_card *card) |
4a71df50 | 276 | { |
d11ba0c4 PT |
277 | QETH_DBF_TEXT(SETUP , 2, "stopcard"); |
278 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 FB |
279 | |
280 | qeth_set_allowed_threads(card, 0, 1); | |
0f7aedbd | 281 | |
d0c74825 JW |
282 | cancel_work_sync(&card->rx_mode_work); |
283 | qeth_l2_drain_rx_mode_cache(card); | |
284 | ||
4a71df50 | 285 | if (card->state == CARD_STATE_SOFTSETUP) { |
4a71df50 FB |
286 | qeth_clear_ipacmd_list(card); |
287 | card->state = CARD_STATE_HARDSETUP; | |
288 | } | |
289 | if (card->state == CARD_STATE_HARDSETUP) { | |
290 | qeth_qdio_clear_card(card, 0); | |
41c47da3 | 291 | qeth_drain_output_queues(card); |
4a71df50 FB |
292 | qeth_clear_working_pool_list(card); |
293 | card->state = CARD_STATE_DOWN; | |
294 | } | |
295 | if (card->state == CARD_STATE_DOWN) { | |
296 | qeth_clear_cmd_buffers(&card->read); | |
297 | qeth_clear_cmd_buffers(&card->write); | |
298 | } | |
c0a2e4d1 JW |
299 | |
300 | flush_workqueue(card->event_wq); | |
7bd2275c | 301 | card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; |
4a71df50 FB |
302 | } |
303 | ||
a1c3ed4c FB |
304 | static int qeth_l2_process_inbound_buffer(struct qeth_card *card, |
305 | int budget, int *done) | |
4a71df50 | 306 | { |
a1c3ed4c | 307 | int work_done = 0; |
4a71df50 FB |
308 | struct sk_buff *skb; |
309 | struct qeth_hdr *hdr; | |
4a71df50 FB |
310 | unsigned int len; |
311 | ||
a1c3ed4c | 312 | *done = 0; |
18af5c17 | 313 | WARN_ON_ONCE(!budget); |
a1c3ed4c FB |
314 | while (budget) { |
315 | skb = qeth_core_get_next_skb(card, | |
b3332930 | 316 | &card->qdio.in_q->bufs[card->rx.b_index], |
a1c3ed4c FB |
317 | &card->rx.b_element, &card->rx.e_offset, &hdr); |
318 | if (!skb) { | |
319 | *done = 1; | |
320 | break; | |
4a71df50 | 321 | } |
4a71df50 FB |
322 | switch (hdr->hdr.l2.id) { |
323 | case QETH_HEADER_TYPE_LAYER2: | |
4a71df50 | 324 | skb->protocol = eth_type_trans(skb, skb->dev); |
6195b936 | 325 | qeth_rx_csum(card, skb, hdr->hdr.l2.flags[1]); |
4a71df50 | 326 | len = skb->len; |
9abfa8cb | 327 | napi_gro_receive(&card->napi, skb); |
4a71df50 FB |
328 | break; |
329 | case QETH_HEADER_TYPE_OSN: | |
379ac99e | 330 | if (IS_OSN(card)) { |
2d488c2f UB |
331 | skb_push(skb, sizeof(struct qeth_hdr)); |
332 | skb_copy_to_linear_data(skb, hdr, | |
4a71df50 | 333 | sizeof(struct qeth_hdr)); |
2d488c2f UB |
334 | len = skb->len; |
335 | card->osn_info.data_cb(skb); | |
336 | break; | |
337 | } | |
338 | /* else unknown */ | |
4a71df50 FB |
339 | default: |
340 | dev_kfree_skb_any(skb); | |
847a50fd | 341 | QETH_CARD_TEXT(card, 3, "inbunkno"); |
0ac1487c | 342 | QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr)); |
4a71df50 FB |
343 | continue; |
344 | } | |
a1c3ed4c FB |
345 | work_done++; |
346 | budget--; | |
b0abc4f5 JW |
347 | QETH_CARD_STAT_INC(card, rx_packets); |
348 | QETH_CARD_STAT_ADD(card, rx_bytes, len); | |
4a71df50 | 349 | } |
a1c3ed4c FB |
350 | return work_done; |
351 | } | |
352 | ||
4a71df50 FB |
353 | static int qeth_l2_request_initial_mac(struct qeth_card *card) |
354 | { | |
355 | int rc = 0; | |
4a71df50 | 356 | |
ec61bd2f | 357 | QETH_DBF_TEXT(SETUP, 2, "l2reqmac"); |
d11ba0c4 | 358 | QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); |
4a71df50 | 359 | |
ec61bd2f JW |
360 | if (MACHINE_IS_VM) { |
361 | rc = qeth_vm_request_mac(card); | |
362 | if (!rc) | |
363 | goto out; | |
e19e5be8 JW |
364 | QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n", |
365 | CARD_DEVID(card), rc); | |
ec61bd2f JW |
366 | QETH_DBF_TEXT_(SETUP, 2, "err%04x", rc); |
367 | /* fall back to alternative mechanism: */ | |
368 | } | |
369 | ||
b144b99f | 370 | if (!IS_OSN(card)) { |
4a71df50 | 371 | rc = qeth_setadpparms_change_macaddr(card); |
4b7ae122 | 372 | if (!rc) |
21b1702a | 373 | goto out; |
e19e5be8 JW |
374 | QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n", |
375 | CARD_DEVID(card), rc); | |
21b1702a JW |
376 | QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc); |
377 | /* fall back once more: */ | |
4a71df50 | 378 | } |
21b1702a JW |
379 | |
380 | /* some devices don't support a custom MAC address: */ | |
379ac99e | 381 | if (IS_OSM(card) || IS_OSX(card)) |
21b1702a JW |
382 | return (rc) ? rc : -EADDRNOTAVAIL; |
383 | eth_hw_addr_random(card->dev); | |
384 | ||
ec61bd2f JW |
385 | out: |
386 | QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, card->dev->addr_len); | |
4a71df50 FB |
387 | return 0; |
388 | } | |
389 | ||
654e3d48 JW |
390 | static void qeth_l2_register_dev_addr(struct qeth_card *card) |
391 | { | |
392 | if (!is_valid_ether_addr(card->dev->dev_addr)) | |
393 | qeth_l2_request_initial_mac(card); | |
394 | ||
395 | if (!IS_OSN(card) && !qeth_l2_send_setmac(card, card->dev->dev_addr)) | |
396 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
397 | } | |
398 | ||
e22355ea JW |
399 | static int qeth_l2_validate_addr(struct net_device *dev) |
400 | { | |
401 | struct qeth_card *card = dev->ml_priv; | |
402 | ||
8024cc9e | 403 | if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED) |
e22355ea JW |
404 | return eth_validate_addr(dev); |
405 | ||
406 | QETH_CARD_TEXT(card, 4, "nomacadr"); | |
407 | return -EPERM; | |
408 | } | |
409 | ||
4a71df50 FB |
410 | static int qeth_l2_set_mac_address(struct net_device *dev, void *p) |
411 | { | |
412 | struct sockaddr *addr = p; | |
509e2562 | 413 | struct qeth_card *card = dev->ml_priv; |
bcacfcbc | 414 | u8 old_addr[ETH_ALEN]; |
4a71df50 FB |
415 | int rc = 0; |
416 | ||
847a50fd | 417 | QETH_CARD_TEXT(card, 3, "setmac"); |
4a71df50 | 418 | |
8024cc9e | 419 | if (IS_OSM(card) || IS_OSX(card)) { |
847a50fd | 420 | QETH_CARD_TEXT(card, 3, "setmcTYP"); |
4a71df50 FB |
421 | return -EOPNOTSUPP; |
422 | } | |
99f0b85d | 423 | QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN); |
bcacfcbc JW |
424 | if (!is_valid_ether_addr(addr->sa_data)) |
425 | return -EADDRNOTAVAIL; | |
426 | ||
bcacfcbc JW |
427 | /* don't register the same address twice */ |
428 | if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) && | |
429 | (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) | |
e6e771b3 | 430 | return 0; |
bcacfcbc JW |
431 | |
432 | /* add the new address, switch over, drop the old */ | |
433 | rc = qeth_l2_send_setmac(card, addr->sa_data); | |
434 | if (rc) | |
e6e771b3 | 435 | return rc; |
bcacfcbc JW |
436 | ether_addr_copy(old_addr, dev->dev_addr); |
437 | ether_addr_copy(dev->dev_addr, addr->sa_data); | |
438 | ||
439 | if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED) | |
440 | qeth_l2_remove_mac(card, old_addr); | |
441 | card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; | |
e6e771b3 | 442 | return 0; |
4a71df50 FB |
443 | } |
444 | ||
0db587b0 EC |
445 | static void qeth_promisc_to_bridge(struct qeth_card *card) |
446 | { | |
447 | struct net_device *dev = card->dev; | |
448 | enum qeth_ipa_promisc_modes promisc_mode; | |
449 | int role; | |
450 | int rc; | |
451 | ||
452 | QETH_CARD_TEXT(card, 3, "pmisc2br"); | |
453 | ||
454 | if (!card->options.sbp.reflect_promisc) | |
455 | return; | |
456 | promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON | |
457 | : SET_PROMISC_MODE_OFF; | |
458 | if (promisc_mode == card->info.promisc_mode) | |
459 | return; | |
460 | ||
461 | if (promisc_mode == SET_PROMISC_MODE_ON) { | |
462 | if (card->options.sbp.reflect_promisc_primary) | |
463 | role = QETH_SBP_ROLE_PRIMARY; | |
464 | else | |
465 | role = QETH_SBP_ROLE_SECONDARY; | |
466 | } else | |
467 | role = QETH_SBP_ROLE_NONE; | |
468 | ||
469 | rc = qeth_bridgeport_setrole(card, role); | |
470 | QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x", | |
471 | (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc); | |
472 | if (!rc) { | |
473 | card->options.sbp.role = role; | |
474 | card->info.promisc_mode = promisc_mode; | |
475 | } | |
fe5c8028 LD |
476 | |
477 | } | |
478 | /* New MAC address is added to the hash table and marked to be written on card | |
479 | * only if there is not in the hash table storage already | |
480 | * | |
481 | */ | |
4641b027 | 482 | static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha) |
fe5c8028 | 483 | { |
cef6ff22 | 484 | u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2])); |
fe5c8028 LD |
485 | struct qeth_mac *mac; |
486 | ||
cef6ff22 | 487 | hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) { |
99f0b85d | 488 | if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) { |
5f78e29c | 489 | mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING; |
fe5c8028 LD |
490 | return; |
491 | } | |
492 | } | |
493 | ||
494 | mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC); | |
fe5c8028 LD |
495 | if (!mac) |
496 | return; | |
497 | ||
99f0b85d | 498 | ether_addr_copy(mac->mac_addr, ha->addr); |
5f78e29c | 499 | mac->disp_flag = QETH_DISP_ADDR_ADD; |
fe5c8028 | 500 | |
cef6ff22 | 501 | hash_add(card->mac_htable, &mac->hnode, mac_hash); |
0db587b0 EC |
502 | } |
503 | ||
d0c74825 | 504 | static void qeth_l2_rx_mode_work(struct work_struct *work) |
4a71df50 | 505 | { |
d0c74825 JW |
506 | struct qeth_card *card = container_of(work, struct qeth_card, |
507 | rx_mode_work); | |
508 | struct net_device *dev = card->dev; | |
ccffad25 | 509 | struct netdev_hw_addr *ha; |
fe5c8028 LD |
510 | struct qeth_mac *mac; |
511 | struct hlist_node *tmp; | |
512 | int i; | |
513 | int rc; | |
4a71df50 | 514 | |
847a50fd | 515 | QETH_CARD_TEXT(card, 3, "setmulti"); |
fe5c8028 | 516 | |
d0c74825 | 517 | netif_addr_lock_bh(dev); |
22bedad3 | 518 | netdev_for_each_mc_addr(ha, dev) |
4641b027 | 519 | qeth_l2_add_mac(card, ha); |
32e7bfc4 | 520 | netdev_for_each_uc_addr(ha, dev) |
4641b027 | 521 | qeth_l2_add_mac(card, ha); |
d0c74825 | 522 | netif_addr_unlock_bh(dev); |
fe5c8028 LD |
523 | |
524 | hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { | |
00c163f1 JW |
525 | switch (mac->disp_flag) { |
526 | case QETH_DISP_ADDR_DELETE: | |
8174aa8a | 527 | qeth_l2_remove_mac(card, mac->mac_addr); |
fe5c8028 LD |
528 | hash_del(&mac->hnode); |
529 | kfree(mac); | |
00c163f1 JW |
530 | break; |
531 | case QETH_DISP_ADDR_ADD: | |
8174aa8a | 532 | rc = qeth_l2_write_mac(card, mac->mac_addr); |
fe5c8028 LD |
533 | if (rc) { |
534 | hash_del(&mac->hnode); | |
535 | kfree(mac); | |
00c163f1 JW |
536 | break; |
537 | } | |
538 | /* fall through */ | |
539 | default: | |
540 | /* for next call to set_rx_mode(): */ | |
5f78e29c | 541 | mac->disp_flag = QETH_DISP_ADDR_DELETE; |
00c163f1 | 542 | } |
fe5c8028 | 543 | } |
7db2266a | 544 | |
0db587b0 EC |
545 | if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) |
546 | qeth_setadp_promisc_mode(card); | |
547 | else | |
548 | qeth_promisc_to_bridge(card); | |
4a71df50 FB |
549 | } |
550 | ||
7286384b JW |
551 | static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb, |
552 | struct qeth_qdio_out_q *queue) | |
553 | { | |
69d7ce80 JW |
554 | struct qeth_hdr *hdr = (struct qeth_hdr *)skb->data; |
555 | addr_t end = (addr_t)(skb->data + sizeof(*hdr)); | |
556 | addr_t start = (addr_t)skb->data; | |
557 | unsigned int elements = 0; | |
558 | unsigned int hd_len = 0; | |
559 | int rc; | |
7286384b JW |
560 | |
561 | if (skb->protocol == htons(ETH_P_IPV6)) | |
562 | return -EPROTONOSUPPORT; | |
563 | ||
69d7ce80 JW |
564 | if (qeth_get_elements_for_range(start, end) > 1) { |
565 | /* Misaligned HW header, move it to its own buffer element. */ | |
566 | hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); | |
567 | if (!hdr) | |
568 | return -ENOMEM; | |
569 | hd_len = sizeof(*hdr); | |
570 | skb_copy_from_linear_data(skb, (char *)hdr, hd_len); | |
571 | elements++; | |
572 | } | |
573 | ||
574 | elements += qeth_count_elements(skb, hd_len); | |
4e26c5fe | 575 | if (elements > queue->max_elements) { |
69d7ce80 JW |
576 | rc = -E2BIG; |
577 | goto out; | |
578 | } | |
579 | ||
580 | rc = qeth_do_send_packet(card, queue, skb, hdr, hd_len, hd_len, | |
581 | elements); | |
582 | out: | |
583 | if (rc && hd_len) | |
584 | kmem_cache_free(qeth_core_header_cache, hdr); | |
585 | return rc; | |
7286384b JW |
586 | } |
587 | ||
588 | static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, | |
589 | struct net_device *dev) | |
590 | { | |
591 | struct qeth_card *card = dev->ml_priv; | |
3a18d754 | 592 | u16 txq = skb_get_queue_mapping(skb); |
7286384b JW |
593 | struct qeth_qdio_out_q *queue; |
594 | int tx_bytes = skb->len; | |
595 | int rc; | |
596 | ||
3a18d754 | 597 | if (IS_IQD(card)) |
54a50941 JW |
598 | txq = qeth_iqd_translate_txq(dev, txq); |
599 | queue = card->qdio.out_qs[txq]; | |
7286384b | 600 | |
5f89eca5 | 601 | if (IS_OSN(card)) |
7286384b | 602 | rc = qeth_l2_xmit_osn(card, skb, queue); |
5f89eca5 | 603 | else |
73dc2daf | 604 | rc = qeth_xmit(card, skb, queue, qeth_get_ip_version(skb), |
58aa2491 JW |
605 | qeth_get_ether_cast_type(skb), |
606 | qeth_l2_fill_header); | |
7286384b JW |
607 | |
608 | if (!rc) { | |
b0abc4f5 JW |
609 | QETH_TXQ_STAT_INC(queue, tx_packets); |
610 | QETH_TXQ_STAT_ADD(queue, tx_bytes, tx_bytes); | |
7286384b | 611 | return NETDEV_TX_OK; |
54a50941 | 612 | } |
4a71df50 | 613 | |
b0abc4f5 | 614 | QETH_TXQ_STAT_INC(queue, tx_dropped); |
104b4859 | 615 | kfree_skb(skb); |
4a71df50 FB |
616 | return NETDEV_TX_OK; |
617 | } | |
618 | ||
3a18d754 JW |
619 | static u16 qeth_l2_select_queue(struct net_device *dev, struct sk_buff *skb, |
620 | struct net_device *sb_dev) | |
621 | { | |
73dc2daf JW |
622 | struct qeth_card *card = dev->ml_priv; |
623 | ||
624 | if (IS_IQD(card)) | |
625 | return qeth_iqd_select_queue(dev, skb, | |
58aa2491 | 626 | qeth_get_ether_cast_type(skb), |
73dc2daf JW |
627 | sb_dev); |
628 | return qeth_get_priority_queue(card, skb); | |
3a18d754 JW |
629 | } |
630 | ||
2d2ebb3e JW |
631 | static const struct device_type qeth_l2_devtype = { |
632 | .name = "qeth_layer2", | |
633 | .groups = qeth_l2_attr_groups, | |
634 | }; | |
635 | ||
4a71df50 FB |
636 | static int qeth_l2_probe_device(struct ccwgroup_device *gdev) |
637 | { | |
638 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
9111e788 | 639 | int rc; |
4a71df50 | 640 | |
12b409dd JW |
641 | qeth_l2_vnicc_set_defaults(card); |
642 | ||
2d2ebb3e JW |
643 | if (gdev->dev.type == &qeth_generic_devtype) { |
644 | rc = qeth_l2_create_device_attributes(&gdev->dev); | |
645 | if (rc) | |
646 | return rc; | |
647 | } | |
5fc692a7 | 648 | |
fe5c8028 | 649 | hash_init(card->mac_htable); |
d0c74825 | 650 | INIT_WORK(&card->rx_mode_work, qeth_l2_rx_mode_work); |
4a71df50 FB |
651 | return 0; |
652 | } | |
653 | ||
654 | static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) | |
655 | { | |
656 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
657 | ||
2d2ebb3e JW |
658 | if (cgdev->dev.type == &qeth_generic_devtype) |
659 | qeth_l2_remove_device_attributes(&cgdev->dev); | |
f2148565 | 660 | qeth_set_allowed_threads(card, 0, 1); |
4a71df50 FB |
661 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); |
662 | ||
70919e23 | 663 | if (cgdev->state == CCWGROUP_ONLINE) |
4a71df50 | 664 | qeth_l2_set_offline(cgdev); |
c2780c1a JW |
665 | |
666 | cancel_work_sync(&card->close_dev_work); | |
30356d08 JW |
667 | if (qeth_netdev_is_registered(card->dev)) |
668 | unregister_netdev(card->dev); | |
4a71df50 FB |
669 | } |
670 | ||
d0c74825 JW |
671 | static void qeth_l2_set_rx_mode(struct net_device *dev) |
672 | { | |
673 | struct qeth_card *card = dev->ml_priv; | |
674 | ||
675 | schedule_work(&card->rx_mode_work); | |
676 | } | |
677 | ||
3d58cefd | 678 | static const struct net_device_ops qeth_l2_netdev_ops = { |
e22355ea JW |
679 | .ndo_open = qeth_open, |
680 | .ndo_stop = qeth_stop, | |
b0abc4f5 | 681 | .ndo_get_stats64 = qeth_get_stats64, |
8403b13c | 682 | .ndo_start_xmit = qeth_l2_hard_start_xmit, |
6d69b1f1 | 683 | .ndo_features_check = qeth_features_check, |
3a18d754 | 684 | .ndo_select_queue = qeth_l2_select_queue, |
e22355ea | 685 | .ndo_validate_addr = qeth_l2_validate_addr, |
fe5c8028 | 686 | .ndo_set_rx_mode = qeth_l2_set_rx_mode, |
942d6984 | 687 | .ndo_do_ioctl = qeth_do_ioctl, |
8403b13c | 688 | .ndo_set_mac_address = qeth_l2_set_mac_address, |
8403b13c FB |
689 | .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, |
690 | .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, | |
691 | .ndo_tx_timeout = qeth_tx_timeout, | |
8f43fb00 TR |
692 | .ndo_fix_features = qeth_fix_features, |
693 | .ndo_set_features = qeth_set_features | |
8403b13c FB |
694 | }; |
695 | ||
8024cc9e JW |
696 | static const struct net_device_ops qeth_osn_netdev_ops = { |
697 | .ndo_open = qeth_open, | |
698 | .ndo_stop = qeth_stop, | |
699 | .ndo_get_stats64 = qeth_get_stats64, | |
700 | .ndo_start_xmit = qeth_l2_hard_start_xmit, | |
701 | .ndo_validate_addr = eth_validate_addr, | |
702 | .ndo_tx_timeout = qeth_tx_timeout, | |
703 | }; | |
704 | ||
9fae5c3b | 705 | static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok) |
4a71df50 | 706 | { |
d3d1b205 | 707 | int rc; |
4a71df50 | 708 | |
8024cc9e JW |
709 | if (IS_OSN(card)) { |
710 | card->dev->netdev_ops = &qeth_osn_netdev_ops; | |
25e2c341 | 711 | card->dev->flags |= IFF_NOARP; |
8024cc9e JW |
712 | goto add_napi; |
713 | } | |
714 | ||
715 | card->dev->needed_headroom = sizeof(struct qeth_hdr); | |
716 | card->dev->netdev_ops = &qeth_l2_netdev_ops; | |
717 | card->dev->priv_flags |= IFF_UNICAST_FLT; | |
9400c53f | 718 | |
5fc692a7 | 719 | if (IS_OSM(card)) { |
9400c53f | 720 | card->dev->features |= NETIF_F_VLAN_CHALLENGED; |
5fc692a7 JW |
721 | } else { |
722 | if (!IS_VM_NIC(card)) | |
723 | card->dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; | |
9400c53f | 724 | card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
5fc692a7 | 725 | } |
0f342945 | 726 | |
379ac99e | 727 | if (IS_OSD(card) && !IS_VM_NIC(card)) { |
6d69b1f1 | 728 | card->dev->features |= NETIF_F_SG; |
8f43fb00 | 729 | /* OSA 3S and earlier has no RX/TX support */ |
9bdc4411 | 730 | if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) { |
8f43fb00 | 731 | card->dev->hw_features |= NETIF_F_IP_CSUM; |
9bdc4411 HW |
732 | card->dev->vlan_features |= NETIF_F_IP_CSUM; |
733 | } | |
4d7def2a | 734 | } |
571f9dd8 KM |
735 | if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) { |
736 | card->dev->hw_features |= NETIF_F_IPV6_CSUM; | |
737 | card->dev->vlan_features |= NETIF_F_IPV6_CSUM; | |
738 | } | |
d7e6ed97 KM |
739 | if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM) || |
740 | qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) { | |
741 | card->dev->hw_features |= NETIF_F_RXCSUM; | |
742 | card->dev->vlan_features |= NETIF_F_RXCSUM; | |
743 | } | |
0aef8392 JW |
744 | if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { |
745 | card->dev->hw_features |= NETIF_F_TSO; | |
746 | card->dev->vlan_features |= NETIF_F_TSO; | |
747 | } | |
748 | if (qeth_is_supported6(card, IPA_OUTBOUND_TSO)) { | |
749 | card->dev->hw_features |= NETIF_F_TSO6; | |
750 | card->dev->vlan_features |= NETIF_F_TSO6; | |
751 | } | |
752 | ||
753 | if (card->dev->hw_features & (NETIF_F_TSO | NETIF_F_TSO6)) { | |
754 | card->dev->needed_headroom = sizeof(struct qeth_hdr_tso); | |
755 | netif_set_gso_max_size(card->dev, | |
756 | PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1)); | |
757 | } | |
0d6f02d3 | 758 | |
8024cc9e | 759 | add_napi: |
d73ef324 | 760 | netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT); |
d3d1b205 | 761 | rc = register_netdev(card->dev); |
9fae5c3b JW |
762 | if (!rc && carrier_ok) |
763 | netif_carrier_on(card->dev); | |
764 | ||
d3d1b205 JW |
765 | if (rc) |
766 | card->dev->netdev_ops = NULL; | |
767 | return rc; | |
4a71df50 FB |
768 | } |
769 | ||
4d7def2a TR |
770 | static int qeth_l2_start_ipassists(struct qeth_card *card) |
771 | { | |
772 | /* configure isolation level */ | |
773 | if (qeth_set_access_ctrl_online(card, 0)) | |
774 | return -ENODEV; | |
4d7def2a TR |
775 | return 0; |
776 | } | |
777 | ||
521c10ea JW |
778 | static void qeth_l2_trace_features(struct qeth_card *card) |
779 | { | |
a45b3faf HW |
780 | /* Set BridgePort features */ |
781 | QETH_CARD_TEXT(card, 2, "featuSBP"); | |
521c10ea JW |
782 | QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs, |
783 | sizeof(card->options.sbp.supported_funcs)); | |
a45b3faf HW |
784 | /* VNIC Characteristics features */ |
785 | QETH_CARD_TEXT(card, 2, "feaVNICC"); | |
786 | QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars, | |
787 | sizeof(card->options.vnicc.sup_chars)); | |
521c10ea JW |
788 | } |
789 | ||
d4560150 | 790 | static int qeth_l2_set_online(struct ccwgroup_device *gdev) |
4a71df50 FB |
791 | { |
792 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
fa3d2e60 | 793 | struct net_device *dev = card->dev; |
4a71df50 | 794 | int rc = 0; |
9fae5c3b | 795 | bool carrier_ok; |
4a71df50 | 796 | |
9dc48ccc | 797 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 798 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
799 | QETH_DBF_TEXT(SETUP, 2, "setonlin"); |
800 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); | |
4a71df50 | 801 | |
9fae5c3b | 802 | rc = qeth_core_hardsetup_card(card, &carrier_ok); |
4a71df50 | 803 | if (rc) { |
1aec42bc | 804 | QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); |
aa909224 | 805 | rc = -ENODEV; |
4a71df50 FB |
806 | goto out_remove; |
807 | } | |
654e3d48 | 808 | |
1da74b1c FB |
809 | if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { |
810 | if (card->info.hwtrap && | |
811 | qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) | |
812 | card->info.hwtrap = 0; | |
813 | } else | |
814 | card->info.hwtrap = 0; | |
815 | ||
d7ef489f JW |
816 | qeth_bridgeport_query_support(card); |
817 | if (card->options.sbp.supported_funcs) | |
818 | dev_info(&card->gdev->dev, | |
819 | "The device represents a Bridge Capable Port\n"); | |
820 | ||
821 | qeth_l2_register_dev_addr(card); | |
822 | ||
a45b3faf HW |
823 | /* for the rx_bcast characteristic, init VNICC after setmac */ |
824 | qeth_l2_vnicc_init(card); | |
825 | ||
826 | qeth_trace_features(card); | |
827 | qeth_l2_trace_features(card); | |
828 | ||
b4d72c08 EC |
829 | qeth_l2_setup_bridgeport_attrs(card); |
830 | ||
4a71df50 FB |
831 | card->state = CARD_STATE_HARDSETUP; |
832 | qeth_print_status_message(card); | |
833 | ||
834 | /* softsetup */ | |
d11ba0c4 | 835 | QETH_DBF_TEXT(SETUP, 2, "softsetp"); |
4a71df50 | 836 | |
379ac99e | 837 | if (IS_OSD(card) || IS_OSX(card)) { |
8f43fb00 TR |
838 | rc = qeth_l2_start_ipassists(card); |
839 | if (rc) | |
0f54761d | 840 | goto out_remove; |
0f54761d | 841 | } |
5113fec0 | 842 | |
4a71df50 FB |
843 | rc = qeth_init_qdio_queues(card); |
844 | if (rc) { | |
d11ba0c4 | 845 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
aa909224 | 846 | rc = -ENODEV; |
4a71df50 FB |
847 | goto out_remove; |
848 | } | |
849 | card->state = CARD_STATE_SOFTSETUP; | |
4a71df50 FB |
850 | |
851 | qeth_set_allowed_threads(card, 0xffffffff, 0); | |
d025da9e | 852 | |
fa3d2e60 JW |
853 | if (!qeth_netdev_is_registered(dev)) { |
854 | rc = qeth_l2_setup_netdev(card, carrier_ok); | |
855 | if (rc) | |
856 | goto out_remove; | |
857 | } else { | |
858 | rtnl_lock(); | |
859 | if (carrier_ok) | |
860 | netif_carrier_on(dev); | |
861 | else | |
862 | netif_carrier_off(dev); | |
863 | ||
e6e771b3 | 864 | netif_device_attach(dev); |
fa3d2e60 JW |
865 | qeth_enable_hw_features(dev); |
866 | ||
d7d543f2 JW |
867 | if (card->info.open_when_online) { |
868 | card->info.open_when_online = 0; | |
d4560150 | 869 | dev_open(dev, NULL); |
4a71df50 | 870 | } |
fa3d2e60 | 871 | rtnl_unlock(); |
4a71df50 FB |
872 | } |
873 | /* let user_space know that device is online */ | |
874 | kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 875 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 876 | mutex_unlock(&card->discipline_mutex); |
4a71df50 | 877 | return 0; |
aa909224 | 878 | |
4a71df50 | 879 | out_remove: |
d4560150 | 880 | qeth_l2_stop_card(card); |
4a71df50 FB |
881 | ccw_device_set_offline(CARD_DDEV(card)); |
882 | ccw_device_set_offline(CARD_WDEV(card)); | |
883 | ccw_device_set_offline(CARD_RDEV(card)); | |
22ae2790 | 884 | qdio_free(CARD_DDEV(card)); |
d7d543f2 JW |
885 | card->state = CARD_STATE_DOWN; |
886 | ||
c4949f07 | 887 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 888 | mutex_unlock(&card->discipline_mutex); |
aa909224 | 889 | return rc; |
4a71df50 FB |
890 | } |
891 | ||
4a71df50 FB |
892 | static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, |
893 | int recovery_mode) | |
894 | { | |
895 | struct qeth_card *card = dev_get_drvdata(&cgdev->dev); | |
896 | int rc = 0, rc2 = 0, rc3 = 0; | |
4a71df50 | 897 | |
9dc48ccc | 898 | mutex_lock(&card->discipline_mutex); |
c4949f07 | 899 | mutex_lock(&card->conf_mutex); |
d11ba0c4 PT |
900 | QETH_DBF_TEXT(SETUP, 3, "setoffl"); |
901 | QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); | |
4a71df50 | 902 | |
d7ef489f JW |
903 | if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { |
904 | qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); | |
905 | card->info.hwtrap = 1; | |
906 | } | |
907 | ||
e6e771b3 | 908 | rtnl_lock(); |
d7d543f2 | 909 | card->info.open_when_online = card->dev->flags & IFF_UP; |
d4560150 | 910 | dev_close(card->dev); |
e6e771b3 | 911 | netif_device_detach(card->dev); |
d3d1b205 | 912 | netif_carrier_off(card->dev); |
e6e771b3 JW |
913 | rtnl_unlock(); |
914 | ||
d4560150 | 915 | qeth_l2_stop_card(card); |
4a71df50 FB |
916 | rc = ccw_device_set_offline(CARD_DDEV(card)); |
917 | rc2 = ccw_device_set_offline(CARD_WDEV(card)); | |
918 | rc3 = ccw_device_set_offline(CARD_RDEV(card)); | |
919 | if (!rc) | |
920 | rc = (rc2) ? rc2 : rc3; | |
921 | if (rc) | |
d11ba0c4 | 922 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
22ae2790 | 923 | qdio_free(CARD_DDEV(card)); |
d7d543f2 | 924 | |
4a71df50 FB |
925 | /* let user_space know that device is offline */ |
926 | kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); | |
c4949f07 | 927 | mutex_unlock(&card->conf_mutex); |
9dc48ccc | 928 | mutex_unlock(&card->discipline_mutex); |
4a71df50 FB |
929 | return 0; |
930 | } | |
931 | ||
932 | static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) | |
933 | { | |
934 | return __qeth_l2_set_offline(cgdev, 0); | |
935 | } | |
936 | ||
937 | static int qeth_l2_recover(void *ptr) | |
938 | { | |
939 | struct qeth_card *card; | |
940 | int rc = 0; | |
941 | ||
942 | card = (struct qeth_card *) ptr; | |
847a50fd | 943 | QETH_CARD_TEXT(card, 2, "recover1"); |
4a71df50 FB |
944 | if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) |
945 | return 0; | |
847a50fd | 946 | QETH_CARD_TEXT(card, 2, "recover2"); |
74eacdb9 FB |
947 | dev_warn(&card->gdev->dev, |
948 | "A recovery process has been started for the device\n"); | |
4a71df50 | 949 | __qeth_l2_set_offline(card->gdev, 1); |
d4560150 | 950 | rc = qeth_l2_set_online(card->gdev); |
4a71df50 | 951 | if (!rc) |
74eacdb9 FB |
952 | dev_info(&card->gdev->dev, |
953 | "Device successfully recovered!\n"); | |
28a7e4c9 | 954 | else { |
bf42d40b | 955 | ccwgroup_set_offline(card->gdev); |
0f54761d | 956 | dev_warn(&card->gdev->dev, "The qeth device driver " |
2efaf5ff | 957 | "failed to recover an error on the device\n"); |
28a7e4c9 | 958 | } |
a1c3ed4c FB |
959 | qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); |
960 | qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); | |
4a71df50 FB |
961 | return 0; |
962 | } | |
963 | ||
964 | static int __init qeth_l2_init(void) | |
965 | { | |
74eacdb9 | 966 | pr_info("register layer 2 discipline\n"); |
4a71df50 FB |
967 | return 0; |
968 | } | |
969 | ||
970 | static void __exit qeth_l2_exit(void) | |
971 | { | |
74eacdb9 | 972 | pr_info("unregister layer 2 discipline\n"); |
4a71df50 FB |
973 | } |
974 | ||
bbcfcdc8 FB |
975 | static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) |
976 | { | |
977 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
978 | ||
bbcfcdc8 FB |
979 | qeth_set_allowed_threads(card, 0, 1); |
980 | wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); | |
981 | if (gdev->state == CCWGROUP_OFFLINE) | |
982 | return 0; | |
62ca98d4 JW |
983 | |
984 | qeth_l2_set_offline(gdev); | |
bbcfcdc8 FB |
985 | return 0; |
986 | } | |
987 | ||
988 | static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) | |
989 | { | |
990 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); | |
d4560150 | 991 | int rc; |
bbcfcdc8 | 992 | |
d4560150 | 993 | rc = qeth_l2_set_online(gdev); |
6585ac4e | 994 | |
bbcfcdc8 | 995 | qeth_set_allowed_threads(card, 0xffffffff, 0); |
bbcfcdc8 FB |
996 | if (rc) |
997 | dev_warn(&card->gdev->dev, "The qeth device driver " | |
998 | "failed to recover an error on the device\n"); | |
999 | return rc; | |
1000 | } | |
1001 | ||
c044dc21 EC |
1002 | /* Returns zero if the command is successfully "consumed" */ |
1003 | static int qeth_l2_control_event(struct qeth_card *card, | |
1004 | struct qeth_ipa_cmd *cmd) | |
1005 | { | |
1006 | switch (cmd->hdr.command) { | |
9c23f4da EC |
1007 | case IPA_CMD_SETBRIDGEPORT_OSA: |
1008 | case IPA_CMD_SETBRIDGEPORT_IQD: | |
c044dc21 EC |
1009 | if (cmd->data.sbp.hdr.command_code == |
1010 | IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { | |
1011 | qeth_bridge_state_change(card, cmd); | |
1012 | return 0; | |
1013 | } else | |
1014 | return 1; | |
1015 | case IPA_CMD_ADDRESS_CHANGE_NOTIF: | |
1016 | qeth_bridge_host_event(card, cmd); | |
1017 | return 0; | |
1018 | default: | |
1019 | return 1; | |
1020 | } | |
1021 | } | |
1022 | ||
c041f2d4 | 1023 | struct qeth_discipline qeth_l2_discipline = { |
2d2ebb3e | 1024 | .devtype = &qeth_l2_devtype, |
d73ef324 | 1025 | .process_rx_buffer = qeth_l2_process_inbound_buffer, |
c041f2d4 SO |
1026 | .recover = qeth_l2_recover, |
1027 | .setup = qeth_l2_probe_device, | |
4a71df50 FB |
1028 | .remove = qeth_l2_remove_device, |
1029 | .set_online = qeth_l2_set_online, | |
1030 | .set_offline = qeth_l2_set_offline, | |
bbcfcdc8 FB |
1031 | .freeze = qeth_l2_pm_suspend, |
1032 | .thaw = qeth_l2_pm_resume, | |
1033 | .restore = qeth_l2_pm_resume, | |
942d6984 | 1034 | .do_ioctl = NULL, |
c044dc21 | 1035 | .control_event_handler = qeth_l2_control_event, |
4a71df50 | 1036 | }; |
c041f2d4 | 1037 | EXPORT_SYMBOL_GPL(qeth_l2_discipline); |
4a71df50 FB |
1038 | |
1039 | static int qeth_osn_send_control_data(struct qeth_card *card, int len, | |
1040 | struct qeth_cmd_buffer *iob) | |
1041 | { | |
750b1625 | 1042 | struct qeth_channel *channel = iob->channel; |
4a71df50 FB |
1043 | int rc = 0; |
1044 | ||
847a50fd | 1045 | QETH_CARD_TEXT(card, 5, "osndctrd"); |
4a71df50 | 1046 | |
782e4a79 | 1047 | wait_event(card->wait_q, qeth_trylock_channel(channel)); |
48ce6f89 JW |
1048 | iob->finalize(card, iob, len); |
1049 | QETH_DBF_HEX(CTRL, 2, iob->data, min(len, QETH_DBF_CTRL_LEN)); | |
847a50fd | 1050 | QETH_CARD_TEXT(card, 6, "osnoirqp"); |
ed47155b | 1051 | spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); |
f15cdaf2 | 1052 | rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, |
782e4a79 | 1053 | (addr_t) iob, 0, 0, iob->timeout); |
ed47155b | 1054 | spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); |
4a71df50 | 1055 | if (rc) { |
14cc21b6 | 1056 | QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " |
4a71df50 | 1057 | "ccw_device_start rc = %i\n", rc); |
847a50fd | 1058 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
750b1625 JW |
1059 | qeth_release_buffer(channel, iob); |
1060 | atomic_set(&channel->irq_pending, 0); | |
4a71df50 FB |
1061 | wake_up(&card->wait_q); |
1062 | } | |
1063 | return rc; | |
1064 | } | |
1065 | ||
1066 | static int qeth_osn_send_ipa_cmd(struct qeth_card *card, | |
c2153277 | 1067 | struct qeth_cmd_buffer *iob) |
4a71df50 | 1068 | { |
c2153277 | 1069 | u16 length; |
4a71df50 | 1070 | |
847a50fd | 1071 | QETH_CARD_TEXT(card, 4, "osndipa"); |
4a71df50 | 1072 | |
c2153277 JW |
1073 | memcpy(&length, QETH_IPA_PDU_LEN_TOTAL(iob->data), 2); |
1074 | return qeth_osn_send_control_data(card, length, iob); | |
4a71df50 FB |
1075 | } |
1076 | ||
1077 | int qeth_osn_assist(struct net_device *dev, void *data, int data_len) | |
1078 | { | |
1079 | struct qeth_cmd_buffer *iob; | |
1080 | struct qeth_card *card; | |
4a71df50 | 1081 | |
4a71df50 FB |
1082 | if (!dev) |
1083 | return -ENODEV; | |
509e2562 | 1084 | card = dev->ml_priv; |
4a71df50 FB |
1085 | if (!card) |
1086 | return -ENODEV; | |
847a50fd | 1087 | QETH_CARD_TEXT(card, 2, "osnsdmc"); |
c3521254 | 1088 | if (!qeth_card_hw_is_reachable(card)) |
4a71df50 FB |
1089 | return -ENODEV; |
1090 | iob = qeth_wait_for_buffer(&card->write); | |
c2153277 | 1091 | qeth_prepare_ipa_cmd(card, iob, (u16) data_len); |
ff5caa7a | 1092 | memcpy(__ipa_cmd(iob), data, data_len); |
c2153277 | 1093 | return qeth_osn_send_ipa_cmd(card, iob); |
4a71df50 FB |
1094 | } |
1095 | EXPORT_SYMBOL(qeth_osn_assist); | |
1096 | ||
1097 | int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, | |
1098 | int (*assist_cb)(struct net_device *, void *), | |
1099 | int (*data_cb)(struct sk_buff *)) | |
1100 | { | |
1101 | struct qeth_card *card; | |
d7d18da1 JW |
1102 | char bus_id[16]; |
1103 | u16 devno; | |
4a71df50 | 1104 | |
d7d18da1 JW |
1105 | memcpy(&devno, read_dev_no, 2); |
1106 | sprintf(bus_id, "0.0.%04x", devno); | |
1107 | card = qeth_get_card_by_busid(bus_id); | |
1108 | if (!card || !IS_OSN(card)) | |
4a71df50 | 1109 | return -ENODEV; |
d7d18da1 JW |
1110 | *dev = card->dev; |
1111 | ||
847a50fd | 1112 | QETH_CARD_TEXT(card, 2, "osnreg"); |
4a71df50 FB |
1113 | if ((assist_cb == NULL) || (data_cb == NULL)) |
1114 | return -EINVAL; | |
1115 | card->osn_info.assist_cb = assist_cb; | |
1116 | card->osn_info.data_cb = data_cb; | |
1117 | return 0; | |
1118 | } | |
1119 | EXPORT_SYMBOL(qeth_osn_register); | |
1120 | ||
1121 | void qeth_osn_deregister(struct net_device *dev) | |
1122 | { | |
1123 | struct qeth_card *card; | |
1124 | ||
4a71df50 FB |
1125 | if (!dev) |
1126 | return; | |
509e2562 | 1127 | card = dev->ml_priv; |
4a71df50 FB |
1128 | if (!card) |
1129 | return; | |
847a50fd | 1130 | QETH_CARD_TEXT(card, 2, "osndereg"); |
4a71df50 FB |
1131 | card->osn_info.assist_cb = NULL; |
1132 | card->osn_info.data_cb = NULL; | |
1133 | return; | |
1134 | } | |
1135 | EXPORT_SYMBOL(qeth_osn_deregister); | |
1136 | ||
b4d72c08 EC |
1137 | /* SETBRIDGEPORT support, async notifications */ |
1138 | ||
9f48b9db EC |
1139 | enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; |
1140 | ||
1141 | /** | |
1142 | * qeth_bridge_emit_host_event() - bridgeport address change notification | |
1143 | * @card: qeth_card structure pointer, for udev events. | |
1144 | * @evtype: "normal" register/unregister, or abort, or reset. For abort | |
1145 | * and reset token and addr_lnid are unused and may be NULL. | |
1146 | * @code: event bitmask: high order bit 0x80 value 1 means removal of an | |
1147 | * object, 0 - addition of an object. | |
1148 | * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. | |
1149 | * @token: "network token" structure identifying physical address of the port. | |
1150 | * @addr_lnid: pointer to structure with MAC address and VLAN ID. | |
1151 | * | |
1152 | * This function is called when registrations and deregistrations are | |
1153 | * reported by the hardware, and also when notifications are enabled - | |
1154 | * for all currently registered addresses. | |
1155 | */ | |
1156 | static void qeth_bridge_emit_host_event(struct qeth_card *card, | |
1157 | enum qeth_an_event_type evtype, | |
1158 | u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) | |
1159 | { | |
1160 | char str[7][32]; | |
1161 | char *env[8]; | |
1162 | int i = 0; | |
1163 | ||
1164 | switch (evtype) { | |
1165 | case anev_reg_unreg: | |
1166 | snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", | |
1167 | (code & IPA_ADDR_CHANGE_CODE_REMOVAL) | |
1168 | ? "deregister" : "register"); | |
1169 | env[i] = str[i]; i++; | |
1170 | if (code & IPA_ADDR_CHANGE_CODE_VLANID) { | |
1171 | snprintf(str[i], sizeof(str[i]), "VLAN=%d", | |
1172 | addr_lnid->lnid); | |
1173 | env[i] = str[i]; i++; | |
1174 | } | |
1175 | if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { | |
9846e70b | 1176 | snprintf(str[i], sizeof(str[i]), "MAC=%pM", |
4d7def2a | 1177 | addr_lnid->mac); |
9f48b9db EC |
1178 | env[i] = str[i]; i++; |
1179 | } | |
1180 | snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", | |
1181 | token->cssid, token->ssid, token->devnum); | |
1182 | env[i] = str[i]; i++; | |
1183 | snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); | |
1184 | env[i] = str[i]; i++; | |
1185 | snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", | |
1186 | token->chpid); | |
1187 | env[i] = str[i]; i++; | |
1188 | snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); | |
1189 | env[i] = str[i]; i++; | |
1190 | break; | |
1191 | case anev_abort: | |
1192 | snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); | |
1193 | env[i] = str[i]; i++; | |
1194 | break; | |
1195 | case anev_reset: | |
1196 | snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); | |
1197 | env[i] = str[i]; i++; | |
1198 | break; | |
1199 | } | |
1200 | env[i] = NULL; | |
1201 | kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); | |
1202 | } | |
1203 | ||
b4d72c08 EC |
1204 | struct qeth_bridge_state_data { |
1205 | struct work_struct worker; | |
1206 | struct qeth_card *card; | |
1207 | struct qeth_sbp_state_change qports; | |
1208 | }; | |
1209 | ||
1210 | static void qeth_bridge_state_change_worker(struct work_struct *work) | |
1211 | { | |
1212 | struct qeth_bridge_state_data *data = | |
1213 | container_of(work, struct qeth_bridge_state_data, worker); | |
1214 | /* We are only interested in the first entry - local port */ | |
1215 | struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; | |
1216 | char env_locrem[32]; | |
1217 | char env_role[32]; | |
1218 | char env_state[32]; | |
1219 | char *env[] = { | |
1220 | env_locrem, | |
1221 | env_role, | |
1222 | env_state, | |
1223 | NULL | |
1224 | }; | |
1225 | ||
1226 | /* Role should not change by itself, but if it did, */ | |
1227 | /* information from the hardware is authoritative. */ | |
1228 | mutex_lock(&data->card->conf_mutex); | |
1229 | data->card->options.sbp.role = entry->role; | |
1230 | mutex_unlock(&data->card->conf_mutex); | |
1231 | ||
1232 | snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); | |
1233 | snprintf(env_role, sizeof(env_role), "ROLE=%s", | |
1234 | (entry->role == QETH_SBP_ROLE_NONE) ? "none" : | |
1235 | (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : | |
1236 | (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : | |
1237 | "<INVALID>"); | |
1238 | snprintf(env_state, sizeof(env_state), "STATE=%s", | |
1239 | (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : | |
1240 | (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : | |
1241 | (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : | |
1242 | "<INVALID>"); | |
1243 | kobject_uevent_env(&data->card->gdev->dev.kobj, | |
1244 | KOBJ_CHANGE, env); | |
1245 | kfree(data); | |
1246 | } | |
1247 | ||
c044dc21 EC |
1248 | static void qeth_bridge_state_change(struct qeth_card *card, |
1249 | struct qeth_ipa_cmd *cmd) | |
b4d72c08 EC |
1250 | { |
1251 | struct qeth_sbp_state_change *qports = | |
1252 | &cmd->data.sbp.data.state_change; | |
1253 | struct qeth_bridge_state_data *data; | |
1254 | int extrasize; | |
1255 | ||
1256 | QETH_CARD_TEXT(card, 2, "brstchng"); | |
1257 | if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { | |
8a593148 | 1258 | QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length); |
b4d72c08 EC |
1259 | return; |
1260 | } | |
1261 | extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; | |
1262 | data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, | |
1263 | GFP_ATOMIC); | |
1264 | if (!data) { | |
1265 | QETH_CARD_TEXT(card, 2, "BPSalloc"); | |
1266 | return; | |
1267 | } | |
1268 | INIT_WORK(&data->worker, qeth_bridge_state_change_worker); | |
1269 | data->card = card; | |
1270 | memcpy(&data->qports, qports, | |
1271 | sizeof(struct qeth_sbp_state_change) + extrasize); | |
c0a2e4d1 | 1272 | queue_work(card->event_wq, &data->worker); |
b4d72c08 | 1273 | } |
b4d72c08 | 1274 | |
9f48b9db EC |
1275 | struct qeth_bridge_host_data { |
1276 | struct work_struct worker; | |
1277 | struct qeth_card *card; | |
1278 | struct qeth_ipacmd_addr_change hostevs; | |
1279 | }; | |
1280 | ||
1281 | static void qeth_bridge_host_event_worker(struct work_struct *work) | |
1282 | { | |
1283 | struct qeth_bridge_host_data *data = | |
1284 | container_of(work, struct qeth_bridge_host_data, worker); | |
1285 | int i; | |
1286 | ||
1287 | if (data->hostevs.lost_event_mask) { | |
1288 | dev_info(&data->card->gdev->dev, | |
9c23f4da | 1289 | "Address notification from the Bridge Port stopped %s (%s)\n", |
9f48b9db EC |
1290 | data->card->dev->name, |
1291 | (data->hostevs.lost_event_mask == 0x01) | |
1292 | ? "Overflow" | |
1293 | : (data->hostevs.lost_event_mask == 0x02) | |
1294 | ? "Bridge port state change" | |
1295 | : "Unknown reason"); | |
1296 | mutex_lock(&data->card->conf_mutex); | |
1297 | data->card->options.sbp.hostnotification = 0; | |
1298 | mutex_unlock(&data->card->conf_mutex); | |
1299 | qeth_bridge_emit_host_event(data->card, anev_abort, | |
1300 | 0, NULL, NULL); | |
1301 | } else | |
1302 | for (i = 0; i < data->hostevs.num_entries; i++) { | |
1303 | struct qeth_ipacmd_addr_change_entry *entry = | |
1304 | &data->hostevs.entry[i]; | |
1305 | qeth_bridge_emit_host_event(data->card, | |
1306 | anev_reg_unreg, | |
1307 | entry->change_code, | |
1308 | &entry->token, &entry->addr_lnid); | |
1309 | } | |
1310 | kfree(data); | |
1311 | } | |
1312 | ||
c044dc21 EC |
1313 | static void qeth_bridge_host_event(struct qeth_card *card, |
1314 | struct qeth_ipa_cmd *cmd) | |
9f48b9db EC |
1315 | { |
1316 | struct qeth_ipacmd_addr_change *hostevs = | |
1317 | &cmd->data.addrchange; | |
1318 | struct qeth_bridge_host_data *data; | |
1319 | int extrasize; | |
1320 | ||
1321 | QETH_CARD_TEXT(card, 2, "brhostev"); | |
1322 | if (cmd->hdr.return_code != 0x0000) { | |
1323 | if (cmd->hdr.return_code == 0x0010) { | |
1324 | if (hostevs->lost_event_mask == 0x00) | |
1325 | hostevs->lost_event_mask = 0xff; | |
1326 | } else { | |
1327 | QETH_CARD_TEXT_(card, 2, "BPHe%04x", | |
1328 | cmd->hdr.return_code); | |
1329 | return; | |
1330 | } | |
1331 | } | |
1332 | extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * | |
1333 | hostevs->num_entries; | |
1334 | data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, | |
1335 | GFP_ATOMIC); | |
1336 | if (!data) { | |
1337 | QETH_CARD_TEXT(card, 2, "BPHalloc"); | |
1338 | return; | |
1339 | } | |
1340 | INIT_WORK(&data->worker, qeth_bridge_host_event_worker); | |
1341 | data->card = card; | |
1342 | memcpy(&data->hostevs, hostevs, | |
1343 | sizeof(struct qeth_ipacmd_addr_change) + extrasize); | |
c0a2e4d1 | 1344 | queue_work(card->event_wq, &data->worker); |
9f48b9db | 1345 | } |
9f48b9db | 1346 | |
b4d72c08 EC |
1347 | /* SETBRIDGEPORT support; sending commands */ |
1348 | ||
1349 | struct _qeth_sbp_cbctl { | |
b4d72c08 EC |
1350 | union { |
1351 | u32 supported; | |
1352 | struct { | |
1353 | enum qeth_sbp_roles *role; | |
1354 | enum qeth_sbp_states *state; | |
1355 | } qports; | |
1356 | } data; | |
1357 | }; | |
1358 | ||
b4d72c08 | 1359 | static int qeth_bridgeport_makerc(struct qeth_card *card, |
1709ff8d | 1360 | struct qeth_ipa_cmd *cmd) |
b4d72c08 | 1361 | { |
1709ff8d JW |
1362 | struct qeth_ipacmd_setbridgeport *sbp = &cmd->data.sbp; |
1363 | enum qeth_ipa_sbp_cmd setcmd = sbp->hdr.command_code; | |
1364 | u16 ipa_rc = cmd->hdr.return_code; | |
1365 | u16 sbp_rc = sbp->hdr.return_code; | |
b4d72c08 EC |
1366 | int rc; |
1367 | ||
1709ff8d JW |
1368 | if (ipa_rc == IPA_RC_SUCCESS && sbp_rc == IPA_RC_SUCCESS) |
1369 | return 0; | |
1370 | ||
1371 | if ((IS_IQD(card) && ipa_rc == IPA_RC_SUCCESS) || | |
1372 | (!IS_IQD(card) && ipa_rc == sbp_rc)) { | |
1373 | switch (sbp_rc) { | |
2063a5f5 | 1374 | case IPA_RC_SUCCESS: |
b4d72c08 EC |
1375 | rc = 0; |
1376 | break; | |
2063a5f5 KM |
1377 | case IPA_RC_L2_UNSUPPORTED_CMD: |
1378 | case IPA_RC_UNSUPPORTED_COMMAND: | |
ffb95251 | 1379 | rc = -EOPNOTSUPP; |
b4d72c08 | 1380 | break; |
2063a5f5 KM |
1381 | case IPA_RC_SBP_OSA_NOT_CONFIGURED: |
1382 | case IPA_RC_SBP_IQD_NOT_CONFIGURED: | |
b4d72c08 EC |
1383 | rc = -ENODEV; /* maybe not the best code here? */ |
1384 | dev_err(&card->gdev->dev, | |
9c23f4da | 1385 | "The device is not configured as a Bridge Port\n"); |
b4d72c08 | 1386 | break; |
2063a5f5 KM |
1387 | case IPA_RC_SBP_OSA_OS_MISMATCH: |
1388 | case IPA_RC_SBP_IQD_OS_MISMATCH: | |
1b05cf62 EC |
1389 | rc = -EPERM; |
1390 | dev_err(&card->gdev->dev, | |
1391 | "A Bridge Port is already configured by a different operating system\n"); | |
1392 | break; | |
2063a5f5 KM |
1393 | case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY: |
1394 | case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY: | |
b4d72c08 EC |
1395 | switch (setcmd) { |
1396 | case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: | |
1397 | rc = -EEXIST; | |
1398 | dev_err(&card->gdev->dev, | |
9c23f4da | 1399 | "The LAN already has a primary Bridge Port\n"); |
b4d72c08 EC |
1400 | break; |
1401 | case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: | |
1402 | rc = -EBUSY; | |
1403 | dev_err(&card->gdev->dev, | |
9c23f4da | 1404 | "The device is already a primary Bridge Port\n"); |
b4d72c08 EC |
1405 | break; |
1406 | default: | |
1407 | rc = -EIO; | |
1408 | } | |
1409 | break; | |
2063a5f5 KM |
1410 | case IPA_RC_SBP_OSA_CURRENT_SECOND: |
1411 | case IPA_RC_SBP_IQD_CURRENT_SECOND: | |
b4d72c08 EC |
1412 | rc = -EBUSY; |
1413 | dev_err(&card->gdev->dev, | |
9c23f4da | 1414 | "The device is already a secondary Bridge Port\n"); |
b4d72c08 | 1415 | break; |
2063a5f5 KM |
1416 | case IPA_RC_SBP_OSA_LIMIT_SECOND: |
1417 | case IPA_RC_SBP_IQD_LIMIT_SECOND: | |
b4d72c08 EC |
1418 | rc = -EEXIST; |
1419 | dev_err(&card->gdev->dev, | |
9c23f4da | 1420 | "The LAN cannot have more secondary Bridge Ports\n"); |
b4d72c08 | 1421 | break; |
2063a5f5 KM |
1422 | case IPA_RC_SBP_OSA_CURRENT_PRIMARY: |
1423 | case IPA_RC_SBP_IQD_CURRENT_PRIMARY: | |
b4d72c08 EC |
1424 | rc = -EBUSY; |
1425 | dev_err(&card->gdev->dev, | |
9c23f4da | 1426 | "The device is already a primary Bridge Port\n"); |
b4d72c08 | 1427 | break; |
2063a5f5 KM |
1428 | case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN: |
1429 | case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN: | |
b4d72c08 EC |
1430 | rc = -EACCES; |
1431 | dev_err(&card->gdev->dev, | |
9c23f4da | 1432 | "The device is not authorized to be a Bridge Port\n"); |
b4d72c08 EC |
1433 | break; |
1434 | default: | |
1435 | rc = -EIO; | |
1436 | } | |
1709ff8d JW |
1437 | } else { |
1438 | switch (ipa_rc) { | |
9c23f4da | 1439 | case IPA_RC_NOTSUPP: |
ffb95251 | 1440 | rc = -EOPNOTSUPP; |
9c23f4da EC |
1441 | break; |
1442 | case IPA_RC_UNSUPPORTED_COMMAND: | |
ffb95251 | 1443 | rc = -EOPNOTSUPP; |
9c23f4da EC |
1444 | break; |
1445 | default: | |
1446 | rc = -EIO; | |
1447 | } | |
1709ff8d | 1448 | } |
9c23f4da | 1449 | |
b4d72c08 | 1450 | if (rc) { |
1709ff8d JW |
1451 | QETH_CARD_TEXT_(card, 2, "SBPi%04x", ipa_rc); |
1452 | QETH_CARD_TEXT_(card, 2, "SBPc%04x", sbp_rc); | |
b4d72c08 EC |
1453 | } |
1454 | return rc; | |
1455 | } | |
1456 | ||
d65626ad JW |
1457 | static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card, |
1458 | enum qeth_ipa_sbp_cmd sbp_cmd, | |
1459 | unsigned int cmd_length) | |
9c23f4da | 1460 | { |
379ac99e JW |
1461 | enum qeth_ipa_cmds ipa_cmd = IS_IQD(card) ? IPA_CMD_SETBRIDGEPORT_IQD : |
1462 | IPA_CMD_SETBRIDGEPORT_OSA; | |
d65626ad JW |
1463 | struct qeth_cmd_buffer *iob; |
1464 | struct qeth_ipa_cmd *cmd; | |
1465 | ||
1466 | iob = qeth_get_ipacmd_buffer(card, ipa_cmd, 0); | |
1467 | if (!iob) | |
1468 | return iob; | |
ff5caa7a | 1469 | cmd = __ipa_cmd(iob); |
d65626ad JW |
1470 | cmd->data.sbp.hdr.cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + |
1471 | cmd_length; | |
1472 | cmd->data.sbp.hdr.command_code = sbp_cmd; | |
1473 | cmd->data.sbp.hdr.used_total = 1; | |
1474 | cmd->data.sbp.hdr.seq_no = 1; | |
1475 | return iob; | |
9c23f4da EC |
1476 | } |
1477 | ||
b4d72c08 EC |
1478 | static int qeth_bridgeport_query_support_cb(struct qeth_card *card, |
1479 | struct qeth_reply *reply, unsigned long data) | |
1480 | { | |
1481 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; | |
1482 | struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; | |
1709ff8d JW |
1483 | int rc; |
1484 | ||
b4d72c08 | 1485 | QETH_CARD_TEXT(card, 2, "brqsupcb"); |
1709ff8d JW |
1486 | rc = qeth_bridgeport_makerc(card, cmd); |
1487 | if (rc) | |
1488 | return rc; | |
1489 | ||
1490 | cbctl->data.supported = | |
1491 | cmd->data.sbp.data.query_cmds_supp.supported_cmds; | |
b4d72c08 EC |
1492 | return 0; |
1493 | } | |
1494 | ||
1495 | /** | |
1496 | * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. | |
1497 | * @card: qeth_card structure pointer. | |
1498 | * | |
1499 | * Sets bitmask of supported setbridgeport subfunctions in the qeth_card | |
1500 | * strucutre: card->options.sbp.supported_funcs. | |
1501 | */ | |
c044dc21 | 1502 | static void qeth_bridgeport_query_support(struct qeth_card *card) |
b4d72c08 EC |
1503 | { |
1504 | struct qeth_cmd_buffer *iob; | |
b4d72c08 EC |
1505 | struct _qeth_sbp_cbctl cbctl; |
1506 | ||
1507 | QETH_CARD_TEXT(card, 2, "brqsuppo"); | |
d65626ad JW |
1508 | iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED, |
1509 | sizeof(struct qeth_sbp_query_cmds_supp)); | |
1aec42bc TR |
1510 | if (!iob) |
1511 | return; | |
1709ff8d | 1512 | |
b4d72c08 | 1513 | if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, |
1709ff8d | 1514 | &cbctl)) { |
b4d72c08 | 1515 | card->options.sbp.role = QETH_SBP_ROLE_NONE; |
1709ff8d | 1516 | card->options.sbp.supported_funcs = 0; |
b4d72c08 EC |
1517 | return; |
1518 | } | |
1519 | card->options.sbp.supported_funcs = cbctl.data.supported; | |
1520 | } | |
b4d72c08 EC |
1521 | |
1522 | static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, | |
1523 | struct qeth_reply *reply, unsigned long data) | |
1524 | { | |
1525 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; | |
1526 | struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; | |
1527 | struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; | |
1709ff8d | 1528 | int rc; |
b4d72c08 EC |
1529 | |
1530 | QETH_CARD_TEXT(card, 2, "brqprtcb"); | |
1709ff8d JW |
1531 | rc = qeth_bridgeport_makerc(card, cmd); |
1532 | if (rc) | |
1533 | return rc; | |
1534 | ||
b4d72c08 | 1535 | if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { |
b4d72c08 | 1536 | QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); |
1709ff8d | 1537 | return -EINVAL; |
b4d72c08 EC |
1538 | } |
1539 | /* first entry contains the state of the local port */ | |
1540 | if (qports->num_entries > 0) { | |
1541 | if (cbctl->data.qports.role) | |
1542 | *cbctl->data.qports.role = qports->entry[0].role; | |
1543 | if (cbctl->data.qports.state) | |
1544 | *cbctl->data.qports.state = qports->entry[0].state; | |
1545 | } | |
1546 | return 0; | |
1547 | } | |
1548 | ||
1549 | /** | |
1550 | * qeth_bridgeport_query_ports() - query local bridgeport status. | |
1551 | * @card: qeth_card structure pointer. | |
1552 | * @role: Role of the port: 0-none, 1-primary, 2-secondary. | |
1553 | * @state: State of the port: 0-inactive, 1-standby, 2-active. | |
1554 | * | |
1555 | * Returns negative errno-compatible error indication or 0 on success. | |
1556 | * | |
1557 | * 'role' and 'state' are not updated in case of hardware operation failure. | |
1558 | */ | |
1559 | int qeth_bridgeport_query_ports(struct qeth_card *card, | |
1560 | enum qeth_sbp_roles *role, enum qeth_sbp_states *state) | |
1561 | { | |
b4d72c08 | 1562 | struct qeth_cmd_buffer *iob; |
b4d72c08 EC |
1563 | struct _qeth_sbp_cbctl cbctl = { |
1564 | .data = { | |
1565 | .qports = { | |
1566 | .role = role, | |
1567 | .state = state, | |
1568 | }, | |
1569 | }, | |
1570 | }; | |
1571 | ||
1572 | QETH_CARD_TEXT(card, 2, "brqports"); | |
1573 | if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) | |
1574 | return -EOPNOTSUPP; | |
d65626ad | 1575 | iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0); |
1aec42bc TR |
1576 | if (!iob) |
1577 | return -ENOMEM; | |
1709ff8d JW |
1578 | |
1579 | return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, | |
1580 | &cbctl); | |
b4d72c08 | 1581 | } |
b4d72c08 EC |
1582 | |
1583 | static int qeth_bridgeport_set_cb(struct qeth_card *card, | |
1584 | struct qeth_reply *reply, unsigned long data) | |
1585 | { | |
1586 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; | |
1709ff8d | 1587 | |
b4d72c08 | 1588 | QETH_CARD_TEXT(card, 2, "brsetrcb"); |
1709ff8d | 1589 | return qeth_bridgeport_makerc(card, cmd); |
b4d72c08 EC |
1590 | } |
1591 | ||
1592 | /** | |
1593 | * qeth_bridgeport_setrole() - Assign primary role to the port. | |
1594 | * @card: qeth_card structure pointer. | |
1595 | * @role: Role to assign. | |
1596 | * | |
1597 | * Returns negative errno-compatible error indication or 0 on success. | |
1598 | */ | |
1599 | int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) | |
1600 | { | |
b4d72c08 EC |
1601 | int cmdlength; |
1602 | struct qeth_cmd_buffer *iob; | |
b4d72c08 EC |
1603 | enum qeth_ipa_sbp_cmd setcmd; |
1604 | ||
1605 | QETH_CARD_TEXT(card, 2, "brsetrol"); | |
1606 | switch (role) { | |
1607 | case QETH_SBP_ROLE_NONE: | |
1608 | setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; | |
d65626ad | 1609 | cmdlength = sizeof(struct qeth_sbp_reset_role); |
b4d72c08 EC |
1610 | break; |
1611 | case QETH_SBP_ROLE_PRIMARY: | |
1612 | setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; | |
d65626ad | 1613 | cmdlength = sizeof(struct qeth_sbp_set_primary); |
b4d72c08 EC |
1614 | break; |
1615 | case QETH_SBP_ROLE_SECONDARY: | |
1616 | setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; | |
d65626ad | 1617 | cmdlength = sizeof(struct qeth_sbp_set_secondary); |
b4d72c08 EC |
1618 | break; |
1619 | default: | |
1620 | return -EINVAL; | |
1621 | } | |
1622 | if (!(card->options.sbp.supported_funcs & setcmd)) | |
1623 | return -EOPNOTSUPP; | |
d65626ad | 1624 | iob = qeth_sbp_build_cmd(card, setcmd, cmdlength); |
1aec42bc TR |
1625 | if (!iob) |
1626 | return -ENOMEM; | |
1709ff8d JW |
1627 | |
1628 | return qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, NULL); | |
b4d72c08 EC |
1629 | } |
1630 | ||
9f48b9db EC |
1631 | /** |
1632 | * qeth_anset_makerc() - derive "traditional" error from hardware codes. | |
1633 | * @card: qeth_card structure pointer, for debug messages. | |
1634 | * | |
1635 | * Returns negative errno-compatible error indication or 0 on success. | |
1636 | */ | |
1637 | static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) | |
1638 | { | |
1639 | int rc; | |
1640 | ||
1641 | if (pnso_rc == 0) | |
1642 | switch (response) { | |
1643 | case 0x0001: | |
1644 | rc = 0; | |
1645 | break; | |
1646 | case 0x0004: | |
1647 | case 0x0100: | |
1648 | case 0x0106: | |
ffb95251 | 1649 | rc = -EOPNOTSUPP; |
9f48b9db EC |
1650 | dev_err(&card->gdev->dev, |
1651 | "Setting address notification failed\n"); | |
1652 | break; | |
1653 | case 0x0107: | |
1654 | rc = -EAGAIN; | |
1655 | break; | |
1656 | default: | |
1657 | rc = -EIO; | |
1658 | } | |
1659 | else | |
1660 | rc = -EIO; | |
1661 | ||
1662 | if (rc) { | |
1663 | QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); | |
1664 | QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); | |
1665 | } | |
1666 | return rc; | |
1667 | } | |
1668 | ||
1669 | static void qeth_bridgeport_an_set_cb(void *priv, | |
1670 | enum qdio_brinfo_entry_type type, void *entry) | |
1671 | { | |
1672 | struct qeth_card *card = (struct qeth_card *)priv; | |
1673 | struct qdio_brinfo_entry_l2 *l2entry; | |
1674 | u8 code; | |
1675 | ||
1676 | if (type != l2_addr_lnid) { | |
1677 | WARN_ON_ONCE(1); | |
1678 | return; | |
1679 | } | |
1680 | ||
1681 | l2entry = (struct qdio_brinfo_entry_l2 *)entry; | |
1682 | code = IPA_ADDR_CHANGE_CODE_MACADDR; | |
33572619 | 1683 | if (l2entry->addr_lnid.lnid < VLAN_N_VID) |
9f48b9db EC |
1684 | code |= IPA_ADDR_CHANGE_CODE_VLANID; |
1685 | qeth_bridge_emit_host_event(card, anev_reg_unreg, code, | |
1686 | (struct net_if_token *)&l2entry->nit, | |
1687 | (struct mac_addr_lnid *)&l2entry->addr_lnid); | |
1688 | } | |
1689 | ||
1690 | /** | |
1691 | * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification | |
1692 | * @card: qeth_card structure pointer. | |
1693 | * @enable: 0 - disable, non-zero - enable notifications | |
1694 | * | |
1695 | * Returns negative errno-compatible error indication or 0 on success. | |
1696 | * | |
1697 | * On enable, emits a series of address notifications udev events for all | |
1698 | * currently registered hosts. | |
1699 | */ | |
1700 | int qeth_bridgeport_an_set(struct qeth_card *card, int enable) | |
1701 | { | |
1702 | int rc; | |
1703 | u16 response; | |
1704 | struct ccw_device *ddev; | |
1705 | struct subchannel_id schid; | |
1706 | ||
1707 | if (!card) | |
1708 | return -EINVAL; | |
1709 | if (!card->options.sbp.supported_funcs) | |
1710 | return -EOPNOTSUPP; | |
1711 | ddev = CARD_DDEV(card); | |
1712 | ccw_device_get_schid(ddev, &schid); | |
1713 | ||
1714 | if (enable) { | |
1715 | qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); | |
1716 | rc = qdio_pnso_brinfo(schid, 1, &response, | |
1717 | qeth_bridgeport_an_set_cb, card); | |
1718 | } else | |
1719 | rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); | |
1720 | return qeth_anset_makerc(card, rc, response); | |
1721 | } | |
9f48b9db | 1722 | |
caa1f0b1 HW |
1723 | static bool qeth_bridgeport_is_in_use(struct qeth_card *card) |
1724 | { | |
1725 | return (card->options.sbp.role || card->options.sbp.reflect_promisc || | |
1726 | card->options.sbp.hostnotification); | |
1727 | } | |
1728 | ||
a45b3faf HW |
1729 | /* VNIC Characteristics support */ |
1730 | ||
1731 | /* handle VNICC IPA command return codes; convert to error codes */ | |
742d4d40 | 1732 | static int qeth_l2_vnicc_makerc(struct qeth_card *card, u16 ipa_rc) |
a45b3faf HW |
1733 | { |
1734 | int rc; | |
1735 | ||
1736 | switch (ipa_rc) { | |
1737 | case IPA_RC_SUCCESS: | |
1738 | return ipa_rc; | |
1739 | case IPA_RC_L2_UNSUPPORTED_CMD: | |
1740 | case IPA_RC_NOTSUPP: | |
1741 | rc = -EOPNOTSUPP; | |
1742 | break; | |
1743 | case IPA_RC_VNICC_OOSEQ: | |
1744 | rc = -EALREADY; | |
1745 | break; | |
1746 | case IPA_RC_VNICC_VNICBP: | |
1747 | rc = -EBUSY; | |
1748 | break; | |
1749 | case IPA_RC_L2_ADDR_TABLE_FULL: | |
1750 | rc = -ENOSPC; | |
1751 | break; | |
1752 | case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: | |
1753 | rc = -EACCES; | |
1754 | break; | |
1755 | default: | |
1756 | rc = -EIO; | |
1757 | } | |
1758 | ||
1759 | QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc); | |
1760 | return rc; | |
1761 | } | |
1762 | ||
1763 | /* generic VNICC request call back control */ | |
1764 | struct _qeth_l2_vnicc_request_cbctl { | |
1765 | u32 sub_cmd; | |
caa1f0b1 HW |
1766 | struct { |
1767 | u32 vnic_char; | |
349d13d5 | 1768 | u32 timeout; |
caa1f0b1 HW |
1769 | } param; |
1770 | struct { | |
349d13d5 HW |
1771 | union{ |
1772 | u32 *sup_cmds; | |
1773 | u32 *timeout; | |
1774 | }; | |
caa1f0b1 | 1775 | } result; |
a45b3faf HW |
1776 | }; |
1777 | ||
1778 | /* generic VNICC request call back */ | |
1779 | static int qeth_l2_vnicc_request_cb(struct qeth_card *card, | |
1780 | struct qeth_reply *reply, | |
1781 | unsigned long data) | |
1782 | { | |
caa1f0b1 HW |
1783 | struct _qeth_l2_vnicc_request_cbctl *cbctl = |
1784 | (struct _qeth_l2_vnicc_request_cbctl *) reply->param; | |
a45b3faf HW |
1785 | struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; |
1786 | struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc; | |
1787 | ||
1788 | QETH_CARD_TEXT(card, 2, "vniccrcb"); | |
1789 | if (cmd->hdr.return_code) | |
742d4d40 | 1790 | return qeth_l2_vnicc_makerc(card, cmd->hdr.return_code); |
a45b3faf HW |
1791 | /* return results to caller */ |
1792 | card->options.vnicc.sup_chars = rep->hdr.sup; | |
1793 | card->options.vnicc.cur_chars = rep->hdr.cur; | |
1794 | ||
caa1f0b1 HW |
1795 | if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS) |
1796 | *cbctl->result.sup_cmds = rep->query_cmds.sup_cmds; | |
1797 | ||
349d13d5 HW |
1798 | if (cbctl->sub_cmd == IPA_VNICC_GET_TIMEOUT) |
1799 | *cbctl->result.timeout = rep->getset_timeout.timeout; | |
1800 | ||
a45b3faf HW |
1801 | return 0; |
1802 | } | |
1803 | ||
1804 | /* generic VNICC request */ | |
1805 | static int qeth_l2_vnicc_request(struct qeth_card *card, | |
1806 | struct _qeth_l2_vnicc_request_cbctl *cbctl) | |
1807 | { | |
1808 | struct qeth_ipacmd_vnicc *req; | |
1809 | struct qeth_cmd_buffer *iob; | |
1810 | struct qeth_ipa_cmd *cmd; | |
a45b3faf HW |
1811 | |
1812 | QETH_CARD_TEXT(card, 2, "vniccreq"); | |
1813 | ||
1814 | /* get new buffer for request */ | |
1815 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_VNICC, 0); | |
1816 | if (!iob) | |
1817 | return -ENOMEM; | |
1818 | ||
1819 | /* create header for request */ | |
ff5caa7a | 1820 | cmd = __ipa_cmd(iob); |
a45b3faf HW |
1821 | req = &cmd->data.vnicc; |
1822 | ||
1823 | /* create sub command header for request */ | |
1824 | req->sub_hdr.data_length = sizeof(req->sub_hdr); | |
1825 | req->sub_hdr.sub_command = cbctl->sub_cmd; | |
1826 | ||
1827 | /* create sub command specific request fields */ | |
1828 | switch (cbctl->sub_cmd) { | |
1829 | case IPA_VNICC_QUERY_CHARS: | |
1830 | break; | |
caa1f0b1 HW |
1831 | case IPA_VNICC_QUERY_CMDS: |
1832 | req->sub_hdr.data_length += sizeof(req->query_cmds); | |
1833 | req->query_cmds.vnic_char = cbctl->param.vnic_char; | |
1834 | break; | |
1835 | case IPA_VNICC_ENABLE: | |
1836 | case IPA_VNICC_DISABLE: | |
1837 | req->sub_hdr.data_length += sizeof(req->set_char); | |
1838 | req->set_char.vnic_char = cbctl->param.vnic_char; | |
1839 | break; | |
349d13d5 HW |
1840 | case IPA_VNICC_SET_TIMEOUT: |
1841 | req->getset_timeout.timeout = cbctl->param.timeout; | |
1842 | /* fallthrough */ | |
1843 | case IPA_VNICC_GET_TIMEOUT: | |
1844 | req->sub_hdr.data_length += sizeof(req->getset_timeout); | |
1845 | req->getset_timeout.vnic_char = cbctl->param.vnic_char; | |
1846 | break; | |
a45b3faf HW |
1847 | default: |
1848 | qeth_release_buffer(iob->channel, iob); | |
1849 | return -EOPNOTSUPP; | |
1850 | } | |
1851 | ||
1852 | /* send request */ | |
742d4d40 | 1853 | return qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, cbctl); |
a45b3faf HW |
1854 | } |
1855 | ||
1856 | /* VNICC query VNIC characteristics request */ | |
1857 | static int qeth_l2_vnicc_query_chars(struct qeth_card *card) | |
1858 | { | |
1859 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
1860 | ||
1861 | /* prepare callback control */ | |
1862 | cbctl.sub_cmd = IPA_VNICC_QUERY_CHARS; | |
1863 | ||
1864 | QETH_CARD_TEXT(card, 2, "vniccqch"); | |
1865 | return qeth_l2_vnicc_request(card, &cbctl); | |
1866 | } | |
1867 | ||
caa1f0b1 HW |
1868 | /* VNICC query sub commands request */ |
1869 | static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char, | |
1870 | u32 *sup_cmds) | |
1871 | { | |
1872 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
1873 | ||
1874 | /* prepare callback control */ | |
1875 | cbctl.sub_cmd = IPA_VNICC_QUERY_CMDS; | |
1876 | cbctl.param.vnic_char = vnic_char; | |
1877 | cbctl.result.sup_cmds = sup_cmds; | |
1878 | ||
1879 | QETH_CARD_TEXT(card, 2, "vniccqcm"); | |
1880 | return qeth_l2_vnicc_request(card, &cbctl); | |
1881 | } | |
1882 | ||
1883 | /* VNICC enable/disable characteristic request */ | |
1884 | static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char, | |
1885 | u32 cmd) | |
1886 | { | |
1887 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
1888 | ||
1889 | /* prepare callback control */ | |
1890 | cbctl.sub_cmd = cmd; | |
1891 | cbctl.param.vnic_char = vnic_char; | |
1892 | ||
1893 | QETH_CARD_TEXT(card, 2, "vniccedc"); | |
1894 | return qeth_l2_vnicc_request(card, &cbctl); | |
1895 | } | |
1896 | ||
349d13d5 HW |
1897 | /* VNICC get/set timeout for characteristic request */ |
1898 | static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc, | |
1899 | u32 cmd, u32 *timeout) | |
1900 | { | |
1901 | struct _qeth_l2_vnicc_request_cbctl cbctl; | |
1902 | ||
1903 | /* prepare callback control */ | |
1904 | cbctl.sub_cmd = cmd; | |
1905 | cbctl.param.vnic_char = vnicc; | |
1906 | if (cmd == IPA_VNICC_SET_TIMEOUT) | |
1907 | cbctl.param.timeout = *timeout; | |
1908 | if (cmd == IPA_VNICC_GET_TIMEOUT) | |
1909 | cbctl.result.timeout = timeout; | |
1910 | ||
1911 | QETH_CARD_TEXT(card, 2, "vniccgst"); | |
1912 | return qeth_l2_vnicc_request(card, &cbctl); | |
1913 | } | |
1914 | ||
caa1f0b1 HW |
1915 | /* set current VNICC flag state; called from sysfs store function */ |
1916 | int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state) | |
1917 | { | |
1918 | int rc = 0; | |
1919 | u32 cmd; | |
1920 | ||
1921 | QETH_CARD_TEXT(card, 2, "vniccsch"); | |
1922 | ||
1923 | /* do not change anything if BridgePort is enabled */ | |
1924 | if (qeth_bridgeport_is_in_use(card)) | |
1925 | return -EBUSY; | |
1926 | ||
1927 | /* check if characteristic and enable/disable are supported */ | |
1928 | if (!(card->options.vnicc.sup_chars & vnicc) || | |
1929 | !(card->options.vnicc.set_char_sup & vnicc)) | |
1930 | return -EOPNOTSUPP; | |
1931 | ||
1932 | /* set enable/disable command and store wanted characteristic */ | |
1933 | if (state) { | |
1934 | cmd = IPA_VNICC_ENABLE; | |
1935 | card->options.vnicc.wanted_chars |= vnicc; | |
1936 | } else { | |
1937 | cmd = IPA_VNICC_DISABLE; | |
1938 | card->options.vnicc.wanted_chars &= ~vnicc; | |
1939 | } | |
1940 | ||
1941 | /* do we need to do anything? */ | |
1942 | if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars) | |
1943 | return rc; | |
1944 | ||
1945 | /* if card is not ready, simply stop here */ | |
1946 | if (!qeth_card_hw_is_reachable(card)) { | |
1947 | if (state) | |
1948 | card->options.vnicc.cur_chars |= vnicc; | |
1949 | else | |
1950 | card->options.vnicc.cur_chars &= ~vnicc; | |
1951 | return rc; | |
1952 | } | |
1953 | ||
1954 | rc = qeth_l2_vnicc_set_char(card, vnicc, cmd); | |
1955 | if (rc) | |
1956 | card->options.vnicc.wanted_chars = | |
1957 | card->options.vnicc.cur_chars; | |
349d13d5 HW |
1958 | else { |
1959 | /* successful online VNICC change; handle special cases */ | |
1960 | if (state && vnicc == QETH_VNICC_RX_BCAST) | |
1961 | card->options.vnicc.rx_bcast_enabled = true; | |
1962 | if (!state && vnicc == QETH_VNICC_LEARNING) | |
1963 | qeth_l2_vnicc_recover_timeout(card, vnicc, | |
1964 | &card->options.vnicc.learning_timeout); | |
1965 | } | |
caa1f0b1 HW |
1966 | |
1967 | return rc; | |
1968 | } | |
1969 | ||
1970 | /* get current VNICC flag state; called from sysfs show function */ | |
1971 | int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state) | |
1972 | { | |
1973 | int rc = 0; | |
1974 | ||
1975 | QETH_CARD_TEXT(card, 2, "vniccgch"); | |
1976 | ||
1977 | /* do not get anything if BridgePort is enabled */ | |
1978 | if (qeth_bridgeport_is_in_use(card)) | |
1979 | return -EBUSY; | |
1980 | ||
1981 | /* check if characteristic is supported */ | |
1982 | if (!(card->options.vnicc.sup_chars & vnicc)) | |
1983 | return -EOPNOTSUPP; | |
1984 | ||
1985 | /* if card is ready, query current VNICC state */ | |
1986 | if (qeth_card_hw_is_reachable(card)) | |
1987 | rc = qeth_l2_vnicc_query_chars(card); | |
1988 | ||
1989 | *state = (card->options.vnicc.cur_chars & vnicc) ? true : false; | |
1990 | return rc; | |
1991 | } | |
1992 | ||
349d13d5 HW |
1993 | /* set VNICC timeout; called from sysfs store function. Currently, only learning |
1994 | * supports timeout | |
1995 | */ | |
1996 | int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout) | |
1997 | { | |
1998 | int rc = 0; | |
1999 | ||
2000 | QETH_CARD_TEXT(card, 2, "vniccsto"); | |
2001 | ||
2002 | /* do not change anything if BridgePort is enabled */ | |
2003 | if (qeth_bridgeport_is_in_use(card)) | |
2004 | return -EBUSY; | |
2005 | ||
2006 | /* check if characteristic and set_timeout are supported */ | |
2007 | if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || | |
2008 | !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) | |
2009 | return -EOPNOTSUPP; | |
2010 | ||
2011 | /* do we need to do anything? */ | |
2012 | if (card->options.vnicc.learning_timeout == timeout) | |
2013 | return rc; | |
2014 | ||
2015 | /* if card is not ready, simply store the value internally and return */ | |
2016 | if (!qeth_card_hw_is_reachable(card)) { | |
2017 | card->options.vnicc.learning_timeout = timeout; | |
2018 | return rc; | |
2019 | } | |
2020 | ||
2021 | /* send timeout value to card; if successful, store value internally */ | |
2022 | rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, | |
2023 | IPA_VNICC_SET_TIMEOUT, &timeout); | |
2024 | if (!rc) | |
2025 | card->options.vnicc.learning_timeout = timeout; | |
2026 | ||
2027 | return rc; | |
2028 | } | |
2029 | ||
2030 | /* get current VNICC timeout; called from sysfs show function. Currently, only | |
2031 | * learning supports timeout | |
2032 | */ | |
2033 | int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout) | |
2034 | { | |
2035 | int rc = 0; | |
2036 | ||
2037 | QETH_CARD_TEXT(card, 2, "vniccgto"); | |
2038 | ||
2039 | /* do not get anything if BridgePort is enabled */ | |
2040 | if (qeth_bridgeport_is_in_use(card)) | |
2041 | return -EBUSY; | |
2042 | ||
2043 | /* check if characteristic and get_timeout are supported */ | |
2044 | if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || | |
2045 | !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) | |
2046 | return -EOPNOTSUPP; | |
2047 | /* if card is ready, get timeout. Otherwise, just return stored value */ | |
2048 | *timeout = card->options.vnicc.learning_timeout; | |
2049 | if (qeth_card_hw_is_reachable(card)) | |
2050 | rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, | |
2051 | IPA_VNICC_GET_TIMEOUT, | |
2052 | timeout); | |
2053 | ||
2054 | return rc; | |
2055 | } | |
2056 | ||
caa1f0b1 HW |
2057 | /* check if VNICC is currently enabled */ |
2058 | bool qeth_l2_vnicc_is_in_use(struct qeth_card *card) | |
2059 | { | |
2060 | /* if everything is turned off, VNICC is not active */ | |
2061 | if (!card->options.vnicc.cur_chars) | |
2062 | return false; | |
2063 | /* default values are only OK if rx_bcast was not enabled by user | |
2064 | * or the card is offline. | |
2065 | */ | |
2066 | if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) { | |
2067 | if (!card->options.vnicc.rx_bcast_enabled || | |
2068 | !qeth_card_hw_is_reachable(card)) | |
2069 | return false; | |
2070 | } | |
2071 | return true; | |
2072 | } | |
2073 | ||
349d13d5 HW |
2074 | /* recover user timeout setting */ |
2075 | static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, | |
2076 | u32 *timeout) | |
2077 | { | |
2078 | if (card->options.vnicc.sup_chars & vnicc && | |
2079 | card->options.vnicc.getset_timeout_sup & vnicc && | |
2080 | !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT, | |
2081 | timeout)) | |
2082 | return false; | |
2083 | *timeout = QETH_VNICC_DEFAULT_TIMEOUT; | |
2084 | return true; | |
2085 | } | |
2086 | ||
caa1f0b1 HW |
2087 | /* recover user characteristic setting */ |
2088 | static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc, | |
2089 | bool enable) | |
2090 | { | |
2091 | u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE; | |
2092 | ||
2093 | if (card->options.vnicc.sup_chars & vnicc && | |
2094 | card->options.vnicc.set_char_sup & vnicc && | |
2095 | !qeth_l2_vnicc_set_char(card, vnicc, cmd)) | |
2096 | return false; | |
2097 | card->options.vnicc.wanted_chars &= ~vnicc; | |
2098 | card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc; | |
2099 | return true; | |
2100 | } | |
2101 | ||
a45b3faf HW |
2102 | /* (re-)initialize VNICC */ |
2103 | static void qeth_l2_vnicc_init(struct qeth_card *card) | |
2104 | { | |
349d13d5 | 2105 | u32 *timeout = &card->options.vnicc.learning_timeout; |
caa1f0b1 HW |
2106 | unsigned int chars_len, i; |
2107 | unsigned long chars_tmp; | |
2108 | u32 sup_cmds, vnicc; | |
2109 | bool enable, error; | |
2110 | ||
a45b3faf | 2111 | QETH_CARD_TEXT(card, 2, "vniccini"); |
caa1f0b1 HW |
2112 | /* reset rx_bcast */ |
2113 | card->options.vnicc.rx_bcast_enabled = 0; | |
a45b3faf HW |
2114 | /* initial query and storage of VNIC characteristics */ |
2115 | if (qeth_l2_vnicc_query_chars(card)) { | |
349d13d5 HW |
2116 | if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT || |
2117 | *timeout != QETH_VNICC_DEFAULT_TIMEOUT) | |
caa1f0b1 HW |
2118 | dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); |
2119 | /* fail quietly if user didn't change the default config */ | |
a45b3faf HW |
2120 | card->options.vnicc.sup_chars = 0; |
2121 | card->options.vnicc.cur_chars = 0; | |
caa1f0b1 HW |
2122 | card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; |
2123 | return; | |
a45b3faf | 2124 | } |
caa1f0b1 HW |
2125 | /* get supported commands for each supported characteristic */ |
2126 | chars_tmp = card->options.vnicc.sup_chars; | |
2127 | chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE; | |
2128 | for_each_set_bit(i, &chars_tmp, chars_len) { | |
2129 | vnicc = BIT(i); | |
2130 | qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds); | |
349d13d5 HW |
2131 | if (!(sup_cmds & IPA_VNICC_SET_TIMEOUT) || |
2132 | !(sup_cmds & IPA_VNICC_GET_TIMEOUT)) | |
2133 | card->options.vnicc.getset_timeout_sup &= ~vnicc; | |
caa1f0b1 HW |
2134 | if (!(sup_cmds & IPA_VNICC_ENABLE) || |
2135 | !(sup_cmds & IPA_VNICC_DISABLE)) | |
2136 | card->options.vnicc.set_char_sup &= ~vnicc; | |
2137 | } | |
2138 | /* enforce assumed default values and recover settings, if changed */ | |
349d13d5 HW |
2139 | error = qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING, |
2140 | timeout); | |
caa1f0b1 HW |
2141 | chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT; |
2142 | chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE; | |
2143 | chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE; | |
2144 | for_each_set_bit(i, &chars_tmp, chars_len) { | |
2145 | vnicc = BIT(i); | |
2146 | enable = card->options.vnicc.wanted_chars & vnicc; | |
2147 | error |= qeth_l2_vnicc_recover_char(card, vnicc, enable); | |
2148 | } | |
2149 | if (error) | |
2150 | dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); | |
2151 | } | |
2152 | ||
2153 | /* configure default values of VNIC characteristics */ | |
2154 | static void qeth_l2_vnicc_set_defaults(struct qeth_card *card) | |
2155 | { | |
2156 | /* characteristics values */ | |
2157 | card->options.vnicc.sup_chars = QETH_VNICC_ALL; | |
2158 | card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT; | |
349d13d5 | 2159 | card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT; |
caa1f0b1 HW |
2160 | /* supported commands */ |
2161 | card->options.vnicc.set_char_sup = QETH_VNICC_ALL; | |
349d13d5 | 2162 | card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING; |
caa1f0b1 HW |
2163 | /* settings wanted by users */ |
2164 | card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; | |
a45b3faf HW |
2165 | } |
2166 | ||
4a71df50 FB |
2167 | module_init(qeth_l2_init); |
2168 | module_exit(qeth_l2_exit); | |
2169 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); | |
2170 | MODULE_DESCRIPTION("qeth layer 2 discipline"); | |
2171 | MODULE_LICENSE("GPL"); |