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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. | |
2a1d9b7f RD |
3 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
4 | * Copyright (c) 2004 Voltaire, Inc. All rights reserved. | |
1da177e4 LT |
5 | * |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
1da177e4 LT |
33 | */ |
34 | ||
35 | #include <linux/skbuff.h> | |
36 | #include <linux/rtnetlink.h> | |
fec14d2f | 37 | #include <linux/moduleparam.h> |
1da177e4 LT |
38 | #include <linux/ip.h> |
39 | #include <linux/in.h> | |
40 | #include <linux/igmp.h> | |
41 | #include <linux/inetdevice.h> | |
42 | #include <linux/delay.h> | |
43 | #include <linux/completion.h> | |
5a0e3ad6 | 44 | #include <linux/slab.h> |
1da177e4 | 45 | |
14c85021 ACM |
46 | #include <net/dst.h> |
47 | ||
1da177e4 LT |
48 | #include "ipoib.h" |
49 | ||
50 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG | |
51 | static int mcast_debug_level; | |
52 | ||
53 | module_param(mcast_debug_level, int, 0644); | |
54 | MODULE_PARM_DESC(mcast_debug_level, | |
55 | "Enable multicast debug tracing if > 0"); | |
56 | #endif | |
57 | ||
95ed644f | 58 | static DEFINE_MUTEX(mcast_mutex); |
1da177e4 | 59 | |
1da177e4 LT |
60 | struct ipoib_mcast_iter { |
61 | struct net_device *dev; | |
62 | union ib_gid mgid; | |
63 | unsigned long created; | |
64 | unsigned int queuelen; | |
65 | unsigned int complete; | |
66 | unsigned int send_only; | |
67 | }; | |
68 | ||
69 | static void ipoib_mcast_free(struct ipoib_mcast *mcast) | |
70 | { | |
71 | struct net_device *dev = mcast->dev; | |
b36f170b | 72 | int tx_dropped = 0; |
1da177e4 | 73 | |
5b095d98 | 74 | ipoib_dbg_mcast(netdev_priv(dev), "deleting multicast group %pI6\n", |
fcace2fe | 75 | mcast->mcmember.mgid.raw); |
1da177e4 | 76 | |
b63b70d8 SP |
77 | /* remove all neigh connected to this mcast */ |
78 | ipoib_del_neighs_by_gid(dev, mcast->mcmember.mgid.raw); | |
1da177e4 | 79 | |
1da177e4 LT |
80 | if (mcast->ah) |
81 | ipoib_put_ah(mcast->ah); | |
82 | ||
b36f170b MT |
83 | while (!skb_queue_empty(&mcast->pkt_queue)) { |
84 | ++tx_dropped; | |
8c608a32 | 85 | dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue)); |
b36f170b MT |
86 | } |
87 | ||
943c246e | 88 | netif_tx_lock_bh(dev); |
de903512 | 89 | dev->stats.tx_dropped += tx_dropped; |
943c246e | 90 | netif_tx_unlock_bh(dev); |
1da177e4 LT |
91 | |
92 | kfree(mcast); | |
93 | } | |
94 | ||
95 | static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev, | |
96 | int can_sleep) | |
97 | { | |
98 | struct ipoib_mcast *mcast; | |
99 | ||
de6eb66b | 100 | mcast = kzalloc(sizeof *mcast, can_sleep ? GFP_KERNEL : GFP_ATOMIC); |
1da177e4 LT |
101 | if (!mcast) |
102 | return NULL; | |
103 | ||
1da177e4 LT |
104 | mcast->dev = dev; |
105 | mcast->created = jiffies; | |
ce5b65cc | 106 | mcast->backoff = 1; |
1da177e4 LT |
107 | |
108 | INIT_LIST_HEAD(&mcast->list); | |
109 | INIT_LIST_HEAD(&mcast->neigh_list); | |
110 | skb_queue_head_init(&mcast->pkt_queue); | |
111 | ||
1da177e4 LT |
112 | return mcast; |
113 | } | |
114 | ||
37c22a77 | 115 | static struct ipoib_mcast *__ipoib_mcast_find(struct net_device *dev, void *mgid) |
1da177e4 LT |
116 | { |
117 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
118 | struct rb_node *n = priv->multicast_tree.rb_node; | |
119 | ||
120 | while (n) { | |
121 | struct ipoib_mcast *mcast; | |
122 | int ret; | |
123 | ||
124 | mcast = rb_entry(n, struct ipoib_mcast, rb_node); | |
125 | ||
37c22a77 | 126 | ret = memcmp(mgid, mcast->mcmember.mgid.raw, |
1da177e4 LT |
127 | sizeof (union ib_gid)); |
128 | if (ret < 0) | |
129 | n = n->rb_left; | |
130 | else if (ret > 0) | |
131 | n = n->rb_right; | |
132 | else | |
133 | return mcast; | |
134 | } | |
135 | ||
136 | return NULL; | |
137 | } | |
138 | ||
139 | static int __ipoib_mcast_add(struct net_device *dev, struct ipoib_mcast *mcast) | |
140 | { | |
141 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
142 | struct rb_node **n = &priv->multicast_tree.rb_node, *pn = NULL; | |
143 | ||
144 | while (*n) { | |
145 | struct ipoib_mcast *tmcast; | |
146 | int ret; | |
147 | ||
148 | pn = *n; | |
149 | tmcast = rb_entry(pn, struct ipoib_mcast, rb_node); | |
150 | ||
151 | ret = memcmp(mcast->mcmember.mgid.raw, tmcast->mcmember.mgid.raw, | |
152 | sizeof (union ib_gid)); | |
153 | if (ret < 0) | |
154 | n = &pn->rb_left; | |
155 | else if (ret > 0) | |
156 | n = &pn->rb_right; | |
157 | else | |
158 | return -EEXIST; | |
159 | } | |
160 | ||
161 | rb_link_node(&mcast->rb_node, pn, n); | |
162 | rb_insert_color(&mcast->rb_node, &priv->multicast_tree); | |
163 | ||
164 | return 0; | |
165 | } | |
166 | ||
167 | static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, | |
168 | struct ib_sa_mcmember_rec *mcmember) | |
169 | { | |
170 | struct net_device *dev = mcast->dev; | |
171 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
7343b231 | 172 | struct ipoib_ah *ah; |
1da177e4 | 173 | int ret; |
d0de1362 | 174 | int set_qkey = 0; |
1da177e4 LT |
175 | |
176 | mcast->mcmember = *mcmember; | |
177 | ||
178 | /* Set the cached Q_Key before we attach if it's the broadcast group */ | |
179 | if (!memcmp(mcast->mcmember.mgid.raw, priv->dev->broadcast + 4, | |
180 | sizeof (union ib_gid))) { | |
e1d50dce JM |
181 | spin_lock_irq(&priv->lock); |
182 | if (!priv->broadcast) { | |
183 | spin_unlock_irq(&priv->lock); | |
184 | return -EAGAIN; | |
185 | } | |
1da177e4 | 186 | priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey); |
e1d50dce | 187 | spin_unlock_irq(&priv->lock); |
1da177e4 | 188 | priv->tx_wr.wr.ud.remote_qkey = priv->qkey; |
d0de1362 | 189 | set_qkey = 1; |
1da177e4 LT |
190 | } |
191 | ||
192 | if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { | |
193 | if (test_and_set_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) { | |
5b095d98 | 194 | ipoib_warn(priv, "multicast group %pI6 already attached\n", |
fcace2fe | 195 | mcast->mcmember.mgid.raw); |
1da177e4 LT |
196 | |
197 | return 0; | |
198 | } | |
199 | ||
200 | ret = ipoib_mcast_attach(dev, be16_to_cpu(mcast->mcmember.mlid), | |
d0de1362 | 201 | &mcast->mcmember.mgid, set_qkey); |
1da177e4 | 202 | if (ret < 0) { |
5b095d98 | 203 | ipoib_warn(priv, "couldn't attach QP to multicast group %pI6\n", |
fcace2fe | 204 | mcast->mcmember.mgid.raw); |
1da177e4 LT |
205 | |
206 | clear_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags); | |
207 | return ret; | |
208 | } | |
209 | } | |
210 | ||
211 | { | |
212 | struct ib_ah_attr av = { | |
213 | .dlid = be16_to_cpu(mcast->mcmember.mlid), | |
214 | .port_num = priv->port, | |
215 | .sl = mcast->mcmember.sl, | |
216 | .ah_flags = IB_AH_GRH, | |
bf6a9e31 | 217 | .static_rate = mcast->mcmember.rate, |
1da177e4 LT |
218 | .grh = { |
219 | .flow_label = be32_to_cpu(mcast->mcmember.flow_label), | |
220 | .hop_limit = mcast->mcmember.hop_limit, | |
221 | .sgid_index = 0, | |
222 | .traffic_class = mcast->mcmember.traffic_class | |
223 | } | |
224 | }; | |
1da177e4 LT |
225 | av.grh.dgid = mcast->mcmember.mgid; |
226 | ||
7343b231 | 227 | ah = ipoib_create_ah(dev, priv->pd, &av); |
3874397c MM |
228 | if (IS_ERR(ah)) { |
229 | ipoib_warn(priv, "ib_address_create failed %ld\n", | |
230 | -PTR_ERR(ah)); | |
231 | /* use original error */ | |
232 | return PTR_ERR(ah); | |
1da177e4 | 233 | } else { |
624d01f8 OG |
234 | spin_lock_irq(&priv->lock); |
235 | mcast->ah = ah; | |
236 | spin_unlock_irq(&priv->lock); | |
237 | ||
5b095d98 | 238 | ipoib_dbg_mcast(priv, "MGID %pI6 AV %p, LID 0x%04x, SL %d\n", |
fcace2fe | 239 | mcast->mcmember.mgid.raw, |
1da177e4 LT |
240 | mcast->ah->ah, |
241 | be16_to_cpu(mcast->mcmember.mlid), | |
242 | mcast->mcmember.sl); | |
243 | } | |
244 | } | |
245 | ||
246 | /* actually send any queued packets */ | |
943c246e | 247 | netif_tx_lock_bh(dev); |
1da177e4 LT |
248 | while (!skb_queue_empty(&mcast->pkt_queue)) { |
249 | struct sk_buff *skb = skb_dequeue(&mcast->pkt_queue); | |
69cce1d1 | 250 | |
943c246e | 251 | netif_tx_unlock_bh(dev); |
1da177e4 LT |
252 | |
253 | skb->dev = dev; | |
1da177e4 LT |
254 | if (dev_queue_xmit(skb)) |
255 | ipoib_warn(priv, "dev_queue_xmit failed to requeue packet\n"); | |
936d7de3 | 256 | |
943c246e | 257 | netif_tx_lock_bh(dev); |
1da177e4 | 258 | } |
943c246e | 259 | netif_tx_unlock_bh(dev); |
1da177e4 LT |
260 | |
261 | return 0; | |
262 | } | |
263 | ||
faec2f7b | 264 | static int |
1da177e4 | 265 | ipoib_mcast_sendonly_join_complete(int status, |
faec2f7b | 266 | struct ib_sa_multicast *multicast) |
1da177e4 | 267 | { |
faec2f7b | 268 | struct ipoib_mcast *mcast = multicast->context; |
1da177e4 LT |
269 | struct net_device *dev = mcast->dev; |
270 | ||
faec2f7b SH |
271 | /* We trap for port events ourselves. */ |
272 | if (status == -ENETRESET) | |
273 | return 0; | |
274 | ||
1da177e4 | 275 | if (!status) |
faec2f7b SH |
276 | status = ipoib_mcast_join_finish(mcast, &multicast->rec); |
277 | ||
278 | if (status) { | |
1da177e4 | 279 | if (mcast->logcount++ < 20) |
5b095d98 | 280 | ipoib_dbg_mcast(netdev_priv(dev), "multicast join failed for %pI6, status %d\n", |
fcace2fe | 281 | mcast->mcmember.mgid.raw, status); |
1da177e4 LT |
282 | |
283 | /* Flush out any queued packets */ | |
943c246e | 284 | netif_tx_lock_bh(dev); |
b36f170b | 285 | while (!skb_queue_empty(&mcast->pkt_queue)) { |
de903512 | 286 | ++dev->stats.tx_dropped; |
8c608a32 | 287 | dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue)); |
b36f170b | 288 | } |
943c246e | 289 | netif_tx_unlock_bh(dev); |
1da177e4 LT |
290 | |
291 | /* Clear the busy flag so we try again */ | |
faec2f7b SH |
292 | status = test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, |
293 | &mcast->flags); | |
1da177e4 | 294 | } |
faec2f7b | 295 | return status; |
1da177e4 LT |
296 | } |
297 | ||
298 | static int ipoib_mcast_sendonly_join(struct ipoib_mcast *mcast) | |
299 | { | |
300 | struct net_device *dev = mcast->dev; | |
301 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
302 | struct ib_sa_mcmember_rec rec = { | |
303 | #if 0 /* Some SMs don't support send-only yet */ | |
304 | .join_state = 4 | |
305 | #else | |
306 | .join_state = 1 | |
307 | #endif | |
308 | }; | |
309 | int ret = 0; | |
310 | ||
311 | if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags)) { | |
312 | ipoib_dbg_mcast(priv, "device shutting down, no multicast joins\n"); | |
313 | return -ENODEV; | |
314 | } | |
315 | ||
316 | if (test_and_set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) { | |
317 | ipoib_dbg_mcast(priv, "multicast entry busy, skipping\n"); | |
318 | return -EBUSY; | |
319 | } | |
320 | ||
321 | rec.mgid = mcast->mcmember.mgid; | |
322 | rec.port_gid = priv->local_gid; | |
97f52eb4 | 323 | rec.pkey = cpu_to_be16(priv->pkey); |
1da177e4 | 324 | |
faec2f7b SH |
325 | mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, |
326 | priv->port, &rec, | |
327 | IB_SA_MCMEMBER_REC_MGID | | |
328 | IB_SA_MCMEMBER_REC_PORT_GID | | |
329 | IB_SA_MCMEMBER_REC_PKEY | | |
330 | IB_SA_MCMEMBER_REC_JOIN_STATE, | |
331 | GFP_ATOMIC, | |
332 | ipoib_mcast_sendonly_join_complete, | |
333 | mcast); | |
334 | if (IS_ERR(mcast->mc)) { | |
335 | ret = PTR_ERR(mcast->mc); | |
336 | clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); | |
337 | ipoib_warn(priv, "ib_sa_join_multicast failed (ret = %d)\n", | |
1da177e4 LT |
338 | ret); |
339 | } else { | |
5b095d98 | 340 | ipoib_dbg_mcast(priv, "no multicast record for %pI6, starting join\n", |
fcace2fe | 341 | mcast->mcmember.mgid.raw); |
1da177e4 LT |
342 | } |
343 | ||
344 | return ret; | |
345 | } | |
346 | ||
e8224e4b YE |
347 | void ipoib_mcast_carrier_on_task(struct work_struct *work) |
348 | { | |
349 | struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, | |
350 | carrier_on_task); | |
5ee95120 | 351 | struct ib_port_attr attr; |
e8224e4b YE |
352 | |
353 | /* | |
354 | * Take rtnl_lock to avoid racing with ipoib_stop() and | |
355 | * turning the carrier back on while a device is being | |
356 | * removed. | |
357 | */ | |
5ee95120 MS |
358 | if (ib_query_port(priv->ca, priv->port, &attr) || |
359 | attr.state != IB_PORT_ACTIVE) { | |
360 | ipoib_dbg(priv, "Keeping carrier off until IB port is active\n"); | |
361 | return; | |
362 | } | |
363 | ||
e8224e4b YE |
364 | rtnl_lock(); |
365 | netif_carrier_on(priv->dev); | |
366 | rtnl_unlock(); | |
367 | } | |
368 | ||
faec2f7b SH |
369 | static int ipoib_mcast_join_complete(int status, |
370 | struct ib_sa_multicast *multicast) | |
1da177e4 | 371 | { |
faec2f7b | 372 | struct ipoib_mcast *mcast = multicast->context; |
1da177e4 LT |
373 | struct net_device *dev = mcast->dev; |
374 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
375 | ||
5b095d98 | 376 | ipoib_dbg_mcast(priv, "join completion for %pI6 (status %d)\n", |
fcace2fe | 377 | mcast->mcmember.mgid.raw, status); |
1da177e4 | 378 | |
faec2f7b SH |
379 | /* We trap for port events ourselves. */ |
380 | if (status == -ENETRESET) | |
381 | return 0; | |
382 | ||
383 | if (!status) | |
384 | status = ipoib_mcast_join_finish(mcast, &multicast->rec); | |
385 | ||
386 | if (!status) { | |
ce5b65cc | 387 | mcast->backoff = 1; |
95ed644f | 388 | mutex_lock(&mcast_mutex); |
1da177e4 | 389 | if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) |
c4028958 DH |
390 | queue_delayed_work(ipoib_workqueue, |
391 | &priv->mcast_task, 0); | |
95ed644f | 392 | mutex_unlock(&mcast_mutex); |
55c9adde | 393 | |
e8224e4b YE |
394 | /* |
395 | * Defer carrier on work to ipoib_workqueue to avoid a | |
396 | * deadlock on rtnl_lock here. | |
397 | */ | |
398 | if (mcast == priv->broadcast) | |
399 | queue_work(ipoib_workqueue, &priv->carrier_on_task); | |
55c9adde | 400 | |
faec2f7b | 401 | return 0; |
1da177e4 LT |
402 | } |
403 | ||
faec2f7b | 404 | if (mcast->logcount++ < 20) { |
3c209620 | 405 | if (status == -ETIMEDOUT || status == -EAGAIN) { |
5b095d98 | 406 | ipoib_dbg_mcast(priv, "multicast join failed for %pI6, status %d\n", |
fcace2fe | 407 | mcast->mcmember.mgid.raw, status); |
1da177e4 | 408 | } else { |
5b095d98 | 409 | ipoib_warn(priv, "multicast join failed for %pI6, status %d\n", |
fcace2fe | 410 | mcast->mcmember.mgid.raw, status); |
1da177e4 LT |
411 | } |
412 | } | |
413 | ||
414 | mcast->backoff *= 2; | |
415 | if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS) | |
416 | mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS; | |
417 | ||
faec2f7b SH |
418 | /* Clear the busy flag so we try again */ |
419 | status = test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); | |
9acf6a85 | 420 | |
faec2f7b | 421 | mutex_lock(&mcast_mutex); |
9acf6a85 | 422 | spin_lock_irq(&priv->lock); |
faec2f7b SH |
423 | if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) |
424 | queue_delayed_work(ipoib_workqueue, &priv->mcast_task, | |
425 | mcast->backoff * HZ); | |
9acf6a85 | 426 | spin_unlock_irq(&priv->lock); |
95ed644f | 427 | mutex_unlock(&mcast_mutex); |
1da177e4 | 428 | |
faec2f7b | 429 | return status; |
1da177e4 LT |
430 | } |
431 | ||
432 | static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast, | |
433 | int create) | |
434 | { | |
435 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
436 | struct ib_sa_mcmember_rec rec = { | |
437 | .join_state = 1 | |
438 | }; | |
439 | ib_sa_comp_mask comp_mask; | |
440 | int ret = 0; | |
441 | ||
5b095d98 | 442 | ipoib_dbg_mcast(priv, "joining MGID %pI6\n", mcast->mcmember.mgid.raw); |
1da177e4 LT |
443 | |
444 | rec.mgid = mcast->mcmember.mgid; | |
445 | rec.port_gid = priv->local_gid; | |
97f52eb4 | 446 | rec.pkey = cpu_to_be16(priv->pkey); |
1da177e4 LT |
447 | |
448 | comp_mask = | |
449 | IB_SA_MCMEMBER_REC_MGID | | |
450 | IB_SA_MCMEMBER_REC_PORT_GID | | |
451 | IB_SA_MCMEMBER_REC_PKEY | | |
452 | IB_SA_MCMEMBER_REC_JOIN_STATE; | |
453 | ||
454 | if (create) { | |
455 | comp_mask |= | |
d0df6d6d RD |
456 | IB_SA_MCMEMBER_REC_QKEY | |
457 | IB_SA_MCMEMBER_REC_MTU_SELECTOR | | |
458 | IB_SA_MCMEMBER_REC_MTU | | |
459 | IB_SA_MCMEMBER_REC_TRAFFIC_CLASS | | |
460 | IB_SA_MCMEMBER_REC_RATE_SELECTOR | | |
461 | IB_SA_MCMEMBER_REC_RATE | | |
462 | IB_SA_MCMEMBER_REC_SL | | |
463 | IB_SA_MCMEMBER_REC_FLOW_LABEL | | |
464 | IB_SA_MCMEMBER_REC_HOP_LIMIT; | |
1da177e4 LT |
465 | |
466 | rec.qkey = priv->broadcast->mcmember.qkey; | |
d0df6d6d RD |
467 | rec.mtu_selector = IB_SA_EQ; |
468 | rec.mtu = priv->broadcast->mcmember.mtu; | |
469 | rec.traffic_class = priv->broadcast->mcmember.traffic_class; | |
470 | rec.rate_selector = IB_SA_EQ; | |
471 | rec.rate = priv->broadcast->mcmember.rate; | |
1da177e4 LT |
472 | rec.sl = priv->broadcast->mcmember.sl; |
473 | rec.flow_label = priv->broadcast->mcmember.flow_label; | |
d0df6d6d | 474 | rec.hop_limit = priv->broadcast->mcmember.hop_limit; |
1da177e4 LT |
475 | } |
476 | ||
faec2f7b SH |
477 | set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); |
478 | mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port, | |
479 | &rec, comp_mask, GFP_KERNEL, | |
480 | ipoib_mcast_join_complete, mcast); | |
481 | if (IS_ERR(mcast->mc)) { | |
482 | clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); | |
483 | ret = PTR_ERR(mcast->mc); | |
484 | ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret); | |
1da177e4 LT |
485 | |
486 | mcast->backoff *= 2; | |
487 | if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS) | |
488 | mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS; | |
489 | ||
95ed644f | 490 | mutex_lock(&mcast_mutex); |
1da177e4 LT |
491 | if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) |
492 | queue_delayed_work(ipoib_workqueue, | |
493 | &priv->mcast_task, | |
ce5b65cc | 494 | mcast->backoff * HZ); |
95ed644f | 495 | mutex_unlock(&mcast_mutex); |
faec2f7b | 496 | } |
1da177e4 LT |
497 | } |
498 | ||
c4028958 | 499 | void ipoib_mcast_join_task(struct work_struct *work) |
1da177e4 | 500 | { |
c4028958 DH |
501 | struct ipoib_dev_priv *priv = |
502 | container_of(work, struct ipoib_dev_priv, mcast_task.work); | |
503 | struct net_device *dev = priv->dev; | |
1da177e4 LT |
504 | |
505 | if (!test_bit(IPOIB_MCAST_RUN, &priv->flags)) | |
506 | return; | |
507 | ||
508 | if (ib_query_gid(priv->ca, priv->port, 0, &priv->local_gid)) | |
24bd1e4e | 509 | ipoib_warn(priv, "ib_query_gid() failed\n"); |
1da177e4 LT |
510 | else |
511 | memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid)); | |
512 | ||
513 | { | |
514 | struct ib_port_attr attr; | |
515 | ||
658bcef6 RD |
516 | if (!ib_query_port(priv->ca, priv->port, &attr)) |
517 | priv->local_lid = attr.lid; | |
518 | else | |
faec2f7b | 519 | ipoib_warn(priv, "ib_query_port failed\n"); |
1da177e4 LT |
520 | } |
521 | ||
522 | if (!priv->broadcast) { | |
20b83382 RD |
523 | struct ipoib_mcast *broadcast; |
524 | ||
50df48f5 YE |
525 | if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) |
526 | return; | |
527 | ||
20b83382 RD |
528 | broadcast = ipoib_mcast_alloc(dev, 1); |
529 | if (!broadcast) { | |
1da177e4 | 530 | ipoib_warn(priv, "failed to allocate broadcast group\n"); |
95ed644f | 531 | mutex_lock(&mcast_mutex); |
1da177e4 LT |
532 | if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) |
533 | queue_delayed_work(ipoib_workqueue, | |
534 | &priv->mcast_task, HZ); | |
95ed644f | 535 | mutex_unlock(&mcast_mutex); |
1da177e4 LT |
536 | return; |
537 | } | |
538 | ||
20b83382 RD |
539 | spin_lock_irq(&priv->lock); |
540 | memcpy(broadcast->mcmember.mgid.raw, priv->dev->broadcast + 4, | |
1da177e4 | 541 | sizeof (union ib_gid)); |
20b83382 | 542 | priv->broadcast = broadcast; |
1da177e4 | 543 | |
1da177e4 LT |
544 | __ipoib_mcast_add(dev, priv->broadcast); |
545 | spin_unlock_irq(&priv->lock); | |
546 | } | |
547 | ||
548 | if (!test_bit(IPOIB_MCAST_FLAG_ATTACHED, &priv->broadcast->flags)) { | |
faec2f7b SH |
549 | if (!test_bit(IPOIB_MCAST_FLAG_BUSY, &priv->broadcast->flags)) |
550 | ipoib_mcast_join(dev, priv->broadcast, 0); | |
1da177e4 LT |
551 | return; |
552 | } | |
553 | ||
554 | while (1) { | |
555 | struct ipoib_mcast *mcast = NULL; | |
556 | ||
557 | spin_lock_irq(&priv->lock); | |
558 | list_for_each_entry(mcast, &priv->multicast_list, list) { | |
559 | if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags) | |
560 | && !test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags) | |
561 | && !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) { | |
562 | /* Found the next unjoined group */ | |
563 | break; | |
564 | } | |
565 | } | |
566 | spin_unlock_irq(&priv->lock); | |
567 | ||
568 | if (&mcast->list == &priv->multicast_list) { | |
569 | /* All done */ | |
570 | break; | |
571 | } | |
572 | ||
573 | ipoib_mcast_join(dev, mcast, 1); | |
574 | return; | |
575 | } | |
576 | ||
bc7b3a36 | 577 | priv->mcast_mtu = IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu)); |
839fcaba | 578 | |
c8c2afe3 EC |
579 | if (!ipoib_cm_admin_enabled(dev)) { |
580 | rtnl_lock(); | |
bd360671 | 581 | dev_set_mtu(dev, min(priv->mcast_mtu, priv->admin_mtu)); |
c8c2afe3 EC |
582 | rtnl_unlock(); |
583 | } | |
1da177e4 LT |
584 | |
585 | ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n"); | |
586 | ||
587 | clear_bit(IPOIB_MCAST_RUN, &priv->flags); | |
1da177e4 LT |
588 | } |
589 | ||
590 | int ipoib_mcast_start_thread(struct net_device *dev) | |
591 | { | |
592 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
593 | ||
594 | ipoib_dbg_mcast(priv, "starting multicast thread\n"); | |
595 | ||
95ed644f | 596 | mutex_lock(&mcast_mutex); |
1da177e4 | 597 | if (!test_and_set_bit(IPOIB_MCAST_RUN, &priv->flags)) |
c4028958 | 598 | queue_delayed_work(ipoib_workqueue, &priv->mcast_task, 0); |
95ed644f | 599 | mutex_unlock(&mcast_mutex); |
1da177e4 LT |
600 | |
601 | return 0; | |
602 | } | |
603 | ||
8d2cae06 | 604 | int ipoib_mcast_stop_thread(struct net_device *dev, int flush) |
1da177e4 LT |
605 | { |
606 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
1da177e4 LT |
607 | |
608 | ipoib_dbg_mcast(priv, "stopping multicast thread\n"); | |
609 | ||
95ed644f | 610 | mutex_lock(&mcast_mutex); |
1da177e4 LT |
611 | clear_bit(IPOIB_MCAST_RUN, &priv->flags); |
612 | cancel_delayed_work(&priv->mcast_task); | |
95ed644f | 613 | mutex_unlock(&mcast_mutex); |
1da177e4 | 614 | |
8d2cae06 RD |
615 | if (flush) |
616 | flush_workqueue(ipoib_workqueue); | |
1da177e4 | 617 | |
1da177e4 LT |
618 | return 0; |
619 | } | |
620 | ||
621 | static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast) | |
622 | { | |
623 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
1da177e4 LT |
624 | int ret = 0; |
625 | ||
e07832b6 SH |
626 | if (test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) |
627 | ib_sa_free_multicast(mcast->mc); | |
628 | ||
faec2f7b | 629 | if (test_and_clear_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) { |
5b095d98 | 630 | ipoib_dbg_mcast(priv, "leaving MGID %pI6\n", |
fcace2fe | 631 | mcast->mcmember.mgid.raw); |
1da177e4 | 632 | |
faec2f7b | 633 | /* Remove ourselves from the multicast group */ |
9eae554c RD |
634 | ret = ib_detach_mcast(priv->qp, &mcast->mcmember.mgid, |
635 | be16_to_cpu(mcast->mcmember.mlid)); | |
faec2f7b | 636 | if (ret) |
9eae554c | 637 | ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret); |
faec2f7b | 638 | } |
1da177e4 | 639 | |
1da177e4 LT |
640 | return 0; |
641 | } | |
642 | ||
b63b70d8 | 643 | void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb) |
1da177e4 LT |
644 | { |
645 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
646 | struct ipoib_mcast *mcast; | |
943c246e | 647 | unsigned long flags; |
b63b70d8 | 648 | void *mgid = daddr + 4; |
700db99d | 649 | |
943c246e | 650 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 | 651 | |
b3e2749b | 652 | if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags) || |
20b83382 RD |
653 | !priv->broadcast || |
654 | !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &priv->broadcast->flags)) { | |
de903512 | 655 | ++dev->stats.tx_dropped; |
479a0796 MT |
656 | dev_kfree_skb_any(skb); |
657 | goto unlock; | |
658 | } | |
659 | ||
1da177e4 LT |
660 | mcast = __ipoib_mcast_find(dev, mgid); |
661 | if (!mcast) { | |
662 | /* Let's create a new send only group now */ | |
5b095d98 | 663 | ipoib_dbg_mcast(priv, "setting up send only multicast group for %pI6\n", |
fcace2fe | 664 | mgid); |
1da177e4 LT |
665 | |
666 | mcast = ipoib_mcast_alloc(dev, 0); | |
667 | if (!mcast) { | |
668 | ipoib_warn(priv, "unable to allocate memory for " | |
669 | "multicast structure\n"); | |
de903512 | 670 | ++dev->stats.tx_dropped; |
1da177e4 LT |
671 | dev_kfree_skb_any(skb); |
672 | goto out; | |
673 | } | |
674 | ||
675 | set_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags); | |
37c22a77 | 676 | memcpy(mcast->mcmember.mgid.raw, mgid, sizeof (union ib_gid)); |
1da177e4 LT |
677 | __ipoib_mcast_add(dev, mcast); |
678 | list_add_tail(&mcast->list, &priv->multicast_list); | |
679 | } | |
680 | ||
681 | if (!mcast->ah) { | |
682 | if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE) | |
683 | skb_queue_tail(&mcast->pkt_queue, skb); | |
b36f170b | 684 | else { |
de903512 | 685 | ++dev->stats.tx_dropped; |
1da177e4 | 686 | dev_kfree_skb_any(skb); |
b36f170b | 687 | } |
1da177e4 | 688 | |
faec2f7b | 689 | if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) |
1da177e4 LT |
690 | ipoib_dbg_mcast(priv, "no address vector, " |
691 | "but multicast join already started\n"); | |
692 | else if (test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) | |
693 | ipoib_mcast_sendonly_join(mcast); | |
694 | ||
695 | /* | |
696 | * If lookup completes between here and out:, don't | |
697 | * want to send packet twice. | |
698 | */ | |
699 | mcast = NULL; | |
700 | } | |
701 | ||
702 | out: | |
703 | if (mcast && mcast->ah) { | |
b63b70d8 SP |
704 | struct ipoib_neigh *neigh; |
705 | ||
706 | spin_unlock_irqrestore(&priv->lock, flags); | |
707 | neigh = ipoib_neigh_get(dev, daddr); | |
708 | spin_lock_irqsave(&priv->lock, flags); | |
709 | if (!neigh) { | |
b63b70d8 | 710 | neigh = ipoib_neigh_alloc(daddr, dev); |
b63b70d8 SP |
711 | if (neigh) { |
712 | kref_get(&mcast->ah->ref); | |
713 | neigh->ah = mcast->ah; | |
714 | list_add_tail(&neigh->list, &mcast->neigh_list); | |
1da177e4 LT |
715 | } |
716 | } | |
721d67cd | 717 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 | 718 | ipoib_send(dev, skb, mcast->ah, IB_MULTICAST_QPN); |
b63b70d8 SP |
719 | if (neigh) |
720 | ipoib_neigh_put(neigh); | |
721d67cd | 721 | return; |
1da177e4 LT |
722 | } |
723 | ||
479a0796 | 724 | unlock: |
943c246e | 725 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 LT |
726 | } |
727 | ||
728 | void ipoib_mcast_dev_flush(struct net_device *dev) | |
729 | { | |
730 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
731 | LIST_HEAD(remove_list); | |
988bd503 | 732 | struct ipoib_mcast *mcast, *tmcast; |
1da177e4 LT |
733 | unsigned long flags; |
734 | ||
735 | ipoib_dbg_mcast(priv, "flushing multicast list\n"); | |
736 | ||
737 | spin_lock_irqsave(&priv->lock, flags); | |
1da177e4 | 738 | |
988bd503 EC |
739 | list_for_each_entry_safe(mcast, tmcast, &priv->multicast_list, list) { |
740 | list_del(&mcast->list); | |
741 | rb_erase(&mcast->rb_node, &priv->multicast_tree); | |
742 | list_add_tail(&mcast->list, &remove_list); | |
1da177e4 LT |
743 | } |
744 | ||
745 | if (priv->broadcast) { | |
3cd96564 | 746 | rb_erase(&priv->broadcast->rb_node, &priv->multicast_tree); |
988bd503 EC |
747 | list_add_tail(&priv->broadcast->list, &remove_list); |
748 | priv->broadcast = NULL; | |
1da177e4 LT |
749 | } |
750 | ||
751 | spin_unlock_irqrestore(&priv->lock, flags); | |
752 | ||
753 | list_for_each_entry_safe(mcast, tmcast, &remove_list, list) { | |
754 | ipoib_mcast_leave(dev, mcast); | |
755 | ipoib_mcast_free(mcast); | |
756 | } | |
757 | } | |
758 | ||
3e4aa12f | 759 | static int ipoib_mcast_addr_is_valid(const u8 *addr, const u8 *broadcast) |
5e47596b | 760 | { |
5e47596b JG |
761 | /* reserved QPN, prefix, scope */ |
762 | if (memcmp(addr, broadcast, 6)) | |
763 | return 0; | |
764 | /* signature lower, pkey */ | |
765 | if (memcmp(addr + 7, broadcast + 7, 3)) | |
766 | return 0; | |
767 | return 1; | |
768 | } | |
769 | ||
c4028958 | 770 | void ipoib_mcast_restart_task(struct work_struct *work) |
1da177e4 | 771 | { |
c4028958 DH |
772 | struct ipoib_dev_priv *priv = |
773 | container_of(work, struct ipoib_dev_priv, restart_task); | |
774 | struct net_device *dev = priv->dev; | |
22bedad3 | 775 | struct netdev_hw_addr *ha; |
1da177e4 LT |
776 | struct ipoib_mcast *mcast, *tmcast; |
777 | LIST_HEAD(remove_list); | |
778 | unsigned long flags; | |
335a64a5 | 779 | struct ib_sa_mcmember_rec rec; |
1da177e4 LT |
780 | |
781 | ipoib_dbg_mcast(priv, "restarting multicast task\n"); | |
782 | ||
8d2cae06 | 783 | ipoib_mcast_stop_thread(dev, 0); |
1da177e4 | 784 | |
932ff279 | 785 | local_irq_save(flags); |
e308a5d8 | 786 | netif_addr_lock(dev); |
78bfe0b5 | 787 | spin_lock(&priv->lock); |
1da177e4 LT |
788 | |
789 | /* | |
790 | * Unfortunately, the networking core only gives us a list of all of | |
791 | * the multicast hardware addresses. We need to figure out which ones | |
792 | * are new and which ones have been removed | |
793 | */ | |
794 | ||
795 | /* Clear out the found flag */ | |
796 | list_for_each_entry(mcast, &priv->multicast_list, list) | |
797 | clear_bit(IPOIB_MCAST_FLAG_FOUND, &mcast->flags); | |
798 | ||
799 | /* Mark all of the entries that are found or don't exist */ | |
22bedad3 | 800 | netdev_for_each_mc_addr(ha, dev) { |
1da177e4 LT |
801 | union ib_gid mgid; |
802 | ||
22bedad3 | 803 | if (!ipoib_mcast_addr_is_valid(ha->addr, dev->broadcast)) |
5e47596b JG |
804 | continue; |
805 | ||
22bedad3 | 806 | memcpy(mgid.raw, ha->addr + 4, sizeof mgid); |
1da177e4 | 807 | |
1da177e4 LT |
808 | mcast = __ipoib_mcast_find(dev, &mgid); |
809 | if (!mcast || test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { | |
810 | struct ipoib_mcast *nmcast; | |
811 | ||
335a64a5 OG |
812 | /* ignore group which is directly joined by userspace */ |
813 | if (test_bit(IPOIB_FLAG_UMCAST, &priv->flags) && | |
814 | !ib_sa_get_mcmember_rec(priv->ca, priv->port, &mgid, &rec)) { | |
5b095d98 | 815 | ipoib_dbg_mcast(priv, "ignoring multicast entry for mgid %pI6\n", |
fcace2fe | 816 | mgid.raw); |
335a64a5 OG |
817 | continue; |
818 | } | |
819 | ||
1da177e4 | 820 | /* Not found or send-only group, let's add a new entry */ |
5b095d98 | 821 | ipoib_dbg_mcast(priv, "adding multicast entry for mgid %pI6\n", |
fcace2fe | 822 | mgid.raw); |
1da177e4 LT |
823 | |
824 | nmcast = ipoib_mcast_alloc(dev, 0); | |
825 | if (!nmcast) { | |
826 | ipoib_warn(priv, "unable to allocate memory for multicast structure\n"); | |
827 | continue; | |
828 | } | |
829 | ||
830 | set_bit(IPOIB_MCAST_FLAG_FOUND, &nmcast->flags); | |
831 | ||
832 | nmcast->mcmember.mgid = mgid; | |
833 | ||
834 | if (mcast) { | |
835 | /* Destroy the send only entry */ | |
179e0917 | 836 | list_move_tail(&mcast->list, &remove_list); |
1da177e4 LT |
837 | |
838 | rb_replace_node(&mcast->rb_node, | |
839 | &nmcast->rb_node, | |
840 | &priv->multicast_tree); | |
841 | } else | |
842 | __ipoib_mcast_add(dev, nmcast); | |
843 | ||
844 | list_add_tail(&nmcast->list, &priv->multicast_list); | |
845 | } | |
846 | ||
847 | if (mcast) | |
848 | set_bit(IPOIB_MCAST_FLAG_FOUND, &mcast->flags); | |
849 | } | |
850 | ||
851 | /* Remove all of the entries don't exist anymore */ | |
852 | list_for_each_entry_safe(mcast, tmcast, &priv->multicast_list, list) { | |
853 | if (!test_bit(IPOIB_MCAST_FLAG_FOUND, &mcast->flags) && | |
854 | !test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { | |
5b095d98 | 855 | ipoib_dbg_mcast(priv, "deleting multicast group %pI6\n", |
fcace2fe | 856 | mcast->mcmember.mgid.raw); |
1da177e4 LT |
857 | |
858 | rb_erase(&mcast->rb_node, &priv->multicast_tree); | |
859 | ||
860 | /* Move to the remove list */ | |
179e0917 | 861 | list_move_tail(&mcast->list, &remove_list); |
1da177e4 LT |
862 | } |
863 | } | |
78bfe0b5 MT |
864 | |
865 | spin_unlock(&priv->lock); | |
e308a5d8 | 866 | netif_addr_unlock(dev); |
932ff279 | 867 | local_irq_restore(flags); |
1da177e4 LT |
868 | |
869 | /* We have to cancel outside of the spinlock */ | |
870 | list_for_each_entry_safe(mcast, tmcast, &remove_list, list) { | |
871 | ipoib_mcast_leave(mcast->dev, mcast); | |
872 | ipoib_mcast_free(mcast); | |
873 | } | |
874 | ||
875 | if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) | |
876 | ipoib_mcast_start_thread(dev); | |
877 | } | |
878 | ||
8ae5a8a2 RD |
879 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
880 | ||
1da177e4 LT |
881 | struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev) |
882 | { | |
883 | struct ipoib_mcast_iter *iter; | |
884 | ||
885 | iter = kmalloc(sizeof *iter, GFP_KERNEL); | |
886 | if (!iter) | |
887 | return NULL; | |
888 | ||
889 | iter->dev = dev; | |
1732b0ef | 890 | memset(iter->mgid.raw, 0, 16); |
1da177e4 LT |
891 | |
892 | if (ipoib_mcast_iter_next(iter)) { | |
1732b0ef | 893 | kfree(iter); |
1da177e4 LT |
894 | return NULL; |
895 | } | |
896 | ||
897 | return iter; | |
898 | } | |
899 | ||
1da177e4 LT |
900 | int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter) |
901 | { | |
902 | struct ipoib_dev_priv *priv = netdev_priv(iter->dev); | |
903 | struct rb_node *n; | |
904 | struct ipoib_mcast *mcast; | |
905 | int ret = 1; | |
906 | ||
907 | spin_lock_irq(&priv->lock); | |
908 | ||
909 | n = rb_first(&priv->multicast_tree); | |
910 | ||
911 | while (n) { | |
912 | mcast = rb_entry(n, struct ipoib_mcast, rb_node); | |
913 | ||
914 | if (memcmp(iter->mgid.raw, mcast->mcmember.mgid.raw, | |
915 | sizeof (union ib_gid)) < 0) { | |
916 | iter->mgid = mcast->mcmember.mgid; | |
917 | iter->created = mcast->created; | |
918 | iter->queuelen = skb_queue_len(&mcast->pkt_queue); | |
919 | iter->complete = !!mcast->ah; | |
920 | iter->send_only = !!(mcast->flags & (1 << IPOIB_MCAST_FLAG_SENDONLY)); | |
921 | ||
922 | ret = 0; | |
923 | ||
924 | break; | |
925 | } | |
926 | ||
927 | n = rb_next(n); | |
928 | } | |
929 | ||
930 | spin_unlock_irq(&priv->lock); | |
931 | ||
932 | return ret; | |
933 | } | |
934 | ||
935 | void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, | |
936 | union ib_gid *mgid, | |
937 | unsigned long *created, | |
938 | unsigned int *queuelen, | |
939 | unsigned int *complete, | |
940 | unsigned int *send_only) | |
941 | { | |
942 | *mgid = iter->mgid; | |
943 | *created = iter->created; | |
944 | *queuelen = iter->queuelen; | |
945 | *complete = iter->complete; | |
946 | *send_only = iter->send_only; | |
947 | } | |
8ae5a8a2 RD |
948 | |
949 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ |