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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. | |
3 | * Copyright (c) 2004 Infinicon Corporation. All rights reserved. | |
4 | * Copyright (c) 2004 Intel Corporation. All rights reserved. | |
5 | * Copyright (c) 2004 Topspin Corporation. All rights reserved. | |
6 | * Copyright (c) 2004 Voltaire Corporation. All rights reserved. | |
2a1d9b7f | 7 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
33b9b3ee | 8 | * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. |
1da177e4 LT |
9 | * |
10 | * This software is available to you under a choice of one of two | |
11 | * licenses. You may choose to be licensed under the terms of the GNU | |
12 | * General Public License (GPL) Version 2, available from the file | |
13 | * COPYING in the main directory of this source tree, or the | |
14 | * OpenIB.org BSD license below: | |
15 | * | |
16 | * Redistribution and use in source and binary forms, with or | |
17 | * without modification, are permitted provided that the following | |
18 | * conditions are met: | |
19 | * | |
20 | * - Redistributions of source code must retain the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer. | |
23 | * | |
24 | * - Redistributions in binary form must reproduce the above | |
25 | * copyright notice, this list of conditions and the following | |
26 | * disclaimer in the documentation and/or other materials | |
27 | * provided with the distribution. | |
28 | * | |
29 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
30 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
31 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
32 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
33 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
34 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
35 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
36 | * SOFTWARE. | |
1da177e4 LT |
37 | */ |
38 | ||
39 | #include <linux/errno.h> | |
40 | #include <linux/err.h> | |
b108d976 | 41 | #include <linux/export.h> |
8c65b4a6 | 42 | #include <linux/string.h> |
0e0ec7e0 | 43 | #include <linux/slab.h> |
1da177e4 | 44 | |
a4d61e84 RD |
45 | #include <rdma/ib_verbs.h> |
46 | #include <rdma/ib_cache.h> | |
1da177e4 | 47 | |
bf6a9e31 JM |
48 | int ib_rate_to_mult(enum ib_rate rate) |
49 | { | |
50 | switch (rate) { | |
51 | case IB_RATE_2_5_GBPS: return 1; | |
52 | case IB_RATE_5_GBPS: return 2; | |
53 | case IB_RATE_10_GBPS: return 4; | |
54 | case IB_RATE_20_GBPS: return 8; | |
55 | case IB_RATE_30_GBPS: return 12; | |
56 | case IB_RATE_40_GBPS: return 16; | |
57 | case IB_RATE_60_GBPS: return 24; | |
58 | case IB_RATE_80_GBPS: return 32; | |
59 | case IB_RATE_120_GBPS: return 48; | |
60 | default: return -1; | |
61 | } | |
62 | } | |
63 | EXPORT_SYMBOL(ib_rate_to_mult); | |
64 | ||
65 | enum ib_rate mult_to_ib_rate(int mult) | |
66 | { | |
67 | switch (mult) { | |
68 | case 1: return IB_RATE_2_5_GBPS; | |
69 | case 2: return IB_RATE_5_GBPS; | |
70 | case 4: return IB_RATE_10_GBPS; | |
71 | case 8: return IB_RATE_20_GBPS; | |
72 | case 12: return IB_RATE_30_GBPS; | |
73 | case 16: return IB_RATE_40_GBPS; | |
74 | case 24: return IB_RATE_60_GBPS; | |
75 | case 32: return IB_RATE_80_GBPS; | |
76 | case 48: return IB_RATE_120_GBPS; | |
77 | default: return IB_RATE_PORT_CURRENT; | |
78 | } | |
79 | } | |
80 | EXPORT_SYMBOL(mult_to_ib_rate); | |
81 | ||
71eeba16 MA |
82 | int ib_rate_to_mbps(enum ib_rate rate) |
83 | { | |
84 | switch (rate) { | |
85 | case IB_RATE_2_5_GBPS: return 2500; | |
86 | case IB_RATE_5_GBPS: return 5000; | |
87 | case IB_RATE_10_GBPS: return 10000; | |
88 | case IB_RATE_20_GBPS: return 20000; | |
89 | case IB_RATE_30_GBPS: return 30000; | |
90 | case IB_RATE_40_GBPS: return 40000; | |
91 | case IB_RATE_60_GBPS: return 60000; | |
92 | case IB_RATE_80_GBPS: return 80000; | |
93 | case IB_RATE_120_GBPS: return 120000; | |
94 | case IB_RATE_14_GBPS: return 14062; | |
95 | case IB_RATE_56_GBPS: return 56250; | |
96 | case IB_RATE_112_GBPS: return 112500; | |
97 | case IB_RATE_168_GBPS: return 168750; | |
98 | case IB_RATE_25_GBPS: return 25781; | |
99 | case IB_RATE_100_GBPS: return 103125; | |
100 | case IB_RATE_200_GBPS: return 206250; | |
101 | case IB_RATE_300_GBPS: return 309375; | |
102 | default: return -1; | |
103 | } | |
104 | } | |
105 | EXPORT_SYMBOL(ib_rate_to_mbps); | |
106 | ||
07ebafba TT |
107 | enum rdma_transport_type |
108 | rdma_node_get_transport(enum rdma_node_type node_type) | |
109 | { | |
110 | switch (node_type) { | |
111 | case RDMA_NODE_IB_CA: | |
112 | case RDMA_NODE_IB_SWITCH: | |
113 | case RDMA_NODE_IB_ROUTER: | |
114 | return RDMA_TRANSPORT_IB; | |
115 | case RDMA_NODE_RNIC: | |
116 | return RDMA_TRANSPORT_IWARP; | |
117 | default: | |
118 | BUG(); | |
119 | return 0; | |
120 | } | |
121 | } | |
122 | EXPORT_SYMBOL(rdma_node_get_transport); | |
123 | ||
a3f5adaf EC |
124 | enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_num) |
125 | { | |
126 | if (device->get_link_layer) | |
127 | return device->get_link_layer(device, port_num); | |
128 | ||
129 | switch (rdma_node_get_transport(device->node_type)) { | |
130 | case RDMA_TRANSPORT_IB: | |
131 | return IB_LINK_LAYER_INFINIBAND; | |
132 | case RDMA_TRANSPORT_IWARP: | |
133 | return IB_LINK_LAYER_ETHERNET; | |
134 | default: | |
135 | return IB_LINK_LAYER_UNSPECIFIED; | |
136 | } | |
137 | } | |
138 | EXPORT_SYMBOL(rdma_port_get_link_layer); | |
139 | ||
1da177e4 LT |
140 | /* Protection domains */ |
141 | ||
142 | struct ib_pd *ib_alloc_pd(struct ib_device *device) | |
143 | { | |
144 | struct ib_pd *pd; | |
145 | ||
b5e81bf5 | 146 | pd = device->alloc_pd(device, NULL, NULL); |
1da177e4 LT |
147 | |
148 | if (!IS_ERR(pd)) { | |
b5e81bf5 RD |
149 | pd->device = device; |
150 | pd->uobject = NULL; | |
1da177e4 LT |
151 | atomic_set(&pd->usecnt, 0); |
152 | } | |
153 | ||
154 | return pd; | |
155 | } | |
156 | EXPORT_SYMBOL(ib_alloc_pd); | |
157 | ||
158 | int ib_dealloc_pd(struct ib_pd *pd) | |
159 | { | |
160 | if (atomic_read(&pd->usecnt)) | |
161 | return -EBUSY; | |
162 | ||
163 | return pd->device->dealloc_pd(pd); | |
164 | } | |
165 | EXPORT_SYMBOL(ib_dealloc_pd); | |
166 | ||
167 | /* Address handles */ | |
168 | ||
169 | struct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) | |
170 | { | |
171 | struct ib_ah *ah; | |
172 | ||
173 | ah = pd->device->create_ah(pd, ah_attr); | |
174 | ||
175 | if (!IS_ERR(ah)) { | |
b5e81bf5 RD |
176 | ah->device = pd->device; |
177 | ah->pd = pd; | |
178 | ah->uobject = NULL; | |
1da177e4 LT |
179 | atomic_inc(&pd->usecnt); |
180 | } | |
181 | ||
182 | return ah; | |
183 | } | |
184 | EXPORT_SYMBOL(ib_create_ah); | |
185 | ||
4e00d694 SH |
186 | int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, |
187 | struct ib_grh *grh, struct ib_ah_attr *ah_attr) | |
513789ed | 188 | { |
513789ed HR |
189 | u32 flow_class; |
190 | u16 gid_index; | |
191 | int ret; | |
192 | ||
4e00d694 SH |
193 | memset(ah_attr, 0, sizeof *ah_attr); |
194 | ah_attr->dlid = wc->slid; | |
195 | ah_attr->sl = wc->sl; | |
196 | ah_attr->src_path_bits = wc->dlid_path_bits; | |
197 | ah_attr->port_num = port_num; | |
513789ed HR |
198 | |
199 | if (wc->wc_flags & IB_WC_GRH) { | |
4e00d694 SH |
200 | ah_attr->ah_flags = IB_AH_GRH; |
201 | ah_attr->grh.dgid = grh->sgid; | |
513789ed | 202 | |
4e00d694 | 203 | ret = ib_find_cached_gid(device, &grh->dgid, &port_num, |
513789ed HR |
204 | &gid_index); |
205 | if (ret) | |
4e00d694 | 206 | return ret; |
513789ed | 207 | |
4e00d694 | 208 | ah_attr->grh.sgid_index = (u8) gid_index; |
497677ab | 209 | flow_class = be32_to_cpu(grh->version_tclass_flow); |
4e00d694 | 210 | ah_attr->grh.flow_label = flow_class & 0xFFFFF; |
47645d8d | 211 | ah_attr->grh.hop_limit = 0xFF; |
4e00d694 | 212 | ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF; |
513789ed | 213 | } |
4e00d694 SH |
214 | return 0; |
215 | } | |
216 | EXPORT_SYMBOL(ib_init_ah_from_wc); | |
217 | ||
218 | struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, | |
219 | struct ib_grh *grh, u8 port_num) | |
220 | { | |
221 | struct ib_ah_attr ah_attr; | |
222 | int ret; | |
223 | ||
224 | ret = ib_init_ah_from_wc(pd->device, port_num, wc, grh, &ah_attr); | |
225 | if (ret) | |
226 | return ERR_PTR(ret); | |
513789ed HR |
227 | |
228 | return ib_create_ah(pd, &ah_attr); | |
229 | } | |
230 | EXPORT_SYMBOL(ib_create_ah_from_wc); | |
231 | ||
1da177e4 LT |
232 | int ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) |
233 | { | |
234 | return ah->device->modify_ah ? | |
235 | ah->device->modify_ah(ah, ah_attr) : | |
236 | -ENOSYS; | |
237 | } | |
238 | EXPORT_SYMBOL(ib_modify_ah); | |
239 | ||
240 | int ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) | |
241 | { | |
242 | return ah->device->query_ah ? | |
243 | ah->device->query_ah(ah, ah_attr) : | |
244 | -ENOSYS; | |
245 | } | |
246 | EXPORT_SYMBOL(ib_query_ah); | |
247 | ||
248 | int ib_destroy_ah(struct ib_ah *ah) | |
249 | { | |
250 | struct ib_pd *pd; | |
251 | int ret; | |
252 | ||
253 | pd = ah->pd; | |
254 | ret = ah->device->destroy_ah(ah); | |
255 | if (!ret) | |
256 | atomic_dec(&pd->usecnt); | |
257 | ||
258 | return ret; | |
259 | } | |
260 | EXPORT_SYMBOL(ib_destroy_ah); | |
261 | ||
d41fcc67 RD |
262 | /* Shared receive queues */ |
263 | ||
264 | struct ib_srq *ib_create_srq(struct ib_pd *pd, | |
265 | struct ib_srq_init_attr *srq_init_attr) | |
266 | { | |
267 | struct ib_srq *srq; | |
268 | ||
269 | if (!pd->device->create_srq) | |
270 | return ERR_PTR(-ENOSYS); | |
271 | ||
272 | srq = pd->device->create_srq(pd, srq_init_attr, NULL); | |
273 | ||
274 | if (!IS_ERR(srq)) { | |
275 | srq->device = pd->device; | |
276 | srq->pd = pd; | |
277 | srq->uobject = NULL; | |
278 | srq->event_handler = srq_init_attr->event_handler; | |
279 | srq->srq_context = srq_init_attr->srq_context; | |
96104eda | 280 | srq->srq_type = srq_init_attr->srq_type; |
418d5130 SH |
281 | if (srq->srq_type == IB_SRQT_XRC) { |
282 | srq->ext.xrc.xrcd = srq_init_attr->ext.xrc.xrcd; | |
283 | srq->ext.xrc.cq = srq_init_attr->ext.xrc.cq; | |
284 | atomic_inc(&srq->ext.xrc.xrcd->usecnt); | |
285 | atomic_inc(&srq->ext.xrc.cq->usecnt); | |
286 | } | |
d41fcc67 RD |
287 | atomic_inc(&pd->usecnt); |
288 | atomic_set(&srq->usecnt, 0); | |
289 | } | |
290 | ||
291 | return srq; | |
292 | } | |
293 | EXPORT_SYMBOL(ib_create_srq); | |
294 | ||
295 | int ib_modify_srq(struct ib_srq *srq, | |
296 | struct ib_srq_attr *srq_attr, | |
297 | enum ib_srq_attr_mask srq_attr_mask) | |
298 | { | |
7ce5eacb DB |
299 | return srq->device->modify_srq ? |
300 | srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL) : | |
301 | -ENOSYS; | |
d41fcc67 RD |
302 | } |
303 | EXPORT_SYMBOL(ib_modify_srq); | |
304 | ||
305 | int ib_query_srq(struct ib_srq *srq, | |
306 | struct ib_srq_attr *srq_attr) | |
307 | { | |
308 | return srq->device->query_srq ? | |
309 | srq->device->query_srq(srq, srq_attr) : -ENOSYS; | |
310 | } | |
311 | EXPORT_SYMBOL(ib_query_srq); | |
312 | ||
313 | int ib_destroy_srq(struct ib_srq *srq) | |
314 | { | |
315 | struct ib_pd *pd; | |
418d5130 SH |
316 | enum ib_srq_type srq_type; |
317 | struct ib_xrcd *uninitialized_var(xrcd); | |
318 | struct ib_cq *uninitialized_var(cq); | |
d41fcc67 RD |
319 | int ret; |
320 | ||
321 | if (atomic_read(&srq->usecnt)) | |
322 | return -EBUSY; | |
323 | ||
324 | pd = srq->pd; | |
418d5130 SH |
325 | srq_type = srq->srq_type; |
326 | if (srq_type == IB_SRQT_XRC) { | |
327 | xrcd = srq->ext.xrc.xrcd; | |
328 | cq = srq->ext.xrc.cq; | |
329 | } | |
d41fcc67 RD |
330 | |
331 | ret = srq->device->destroy_srq(srq); | |
418d5130 | 332 | if (!ret) { |
d41fcc67 | 333 | atomic_dec(&pd->usecnt); |
418d5130 SH |
334 | if (srq_type == IB_SRQT_XRC) { |
335 | atomic_dec(&xrcd->usecnt); | |
336 | atomic_dec(&cq->usecnt); | |
337 | } | |
338 | } | |
d41fcc67 RD |
339 | |
340 | return ret; | |
341 | } | |
342 | EXPORT_SYMBOL(ib_destroy_srq); | |
343 | ||
1da177e4 LT |
344 | /* Queue pairs */ |
345 | ||
0e0ec7e0 SH |
346 | static void __ib_shared_qp_event_handler(struct ib_event *event, void *context) |
347 | { | |
348 | struct ib_qp *qp = context; | |
73c40c61 | 349 | unsigned long flags; |
0e0ec7e0 | 350 | |
73c40c61 | 351 | spin_lock_irqsave(&qp->device->event_handler_lock, flags); |
0e0ec7e0 | 352 | list_for_each_entry(event->element.qp, &qp->open_list, open_list) |
eec9e29f SP |
353 | if (event->element.qp->event_handler) |
354 | event->element.qp->event_handler(event, event->element.qp->qp_context); | |
73c40c61 | 355 | spin_unlock_irqrestore(&qp->device->event_handler_lock, flags); |
0e0ec7e0 SH |
356 | } |
357 | ||
d3d72d90 SH |
358 | static void __ib_insert_xrcd_qp(struct ib_xrcd *xrcd, struct ib_qp *qp) |
359 | { | |
360 | mutex_lock(&xrcd->tgt_qp_mutex); | |
361 | list_add(&qp->xrcd_list, &xrcd->tgt_qp_list); | |
362 | mutex_unlock(&xrcd->tgt_qp_mutex); | |
363 | } | |
364 | ||
0e0ec7e0 SH |
365 | static struct ib_qp *__ib_open_qp(struct ib_qp *real_qp, |
366 | void (*event_handler)(struct ib_event *, void *), | |
367 | void *qp_context) | |
d3d72d90 | 368 | { |
0e0ec7e0 SH |
369 | struct ib_qp *qp; |
370 | unsigned long flags; | |
371 | ||
372 | qp = kzalloc(sizeof *qp, GFP_KERNEL); | |
373 | if (!qp) | |
374 | return ERR_PTR(-ENOMEM); | |
375 | ||
376 | qp->real_qp = real_qp; | |
377 | atomic_inc(&real_qp->usecnt); | |
378 | qp->device = real_qp->device; | |
379 | qp->event_handler = event_handler; | |
380 | qp->qp_context = qp_context; | |
381 | qp->qp_num = real_qp->qp_num; | |
382 | qp->qp_type = real_qp->qp_type; | |
383 | ||
384 | spin_lock_irqsave(&real_qp->device->event_handler_lock, flags); | |
385 | list_add(&qp->open_list, &real_qp->open_list); | |
386 | spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags); | |
387 | ||
388 | return qp; | |
389 | } | |
390 | ||
391 | struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, | |
392 | struct ib_qp_open_attr *qp_open_attr) | |
393 | { | |
394 | struct ib_qp *qp, *real_qp; | |
395 | ||
396 | if (qp_open_attr->qp_type != IB_QPT_XRC_TGT) | |
397 | return ERR_PTR(-EINVAL); | |
398 | ||
399 | qp = ERR_PTR(-EINVAL); | |
d3d72d90 | 400 | mutex_lock(&xrcd->tgt_qp_mutex); |
0e0ec7e0 SH |
401 | list_for_each_entry(real_qp, &xrcd->tgt_qp_list, xrcd_list) { |
402 | if (real_qp->qp_num == qp_open_attr->qp_num) { | |
403 | qp = __ib_open_qp(real_qp, qp_open_attr->event_handler, | |
404 | qp_open_attr->qp_context); | |
405 | break; | |
406 | } | |
407 | } | |
d3d72d90 | 408 | mutex_unlock(&xrcd->tgt_qp_mutex); |
0e0ec7e0 | 409 | return qp; |
d3d72d90 | 410 | } |
0e0ec7e0 | 411 | EXPORT_SYMBOL(ib_open_qp); |
d3d72d90 | 412 | |
1da177e4 LT |
413 | struct ib_qp *ib_create_qp(struct ib_pd *pd, |
414 | struct ib_qp_init_attr *qp_init_attr) | |
415 | { | |
0e0ec7e0 | 416 | struct ib_qp *qp, *real_qp; |
b42b63cf | 417 | struct ib_device *device; |
1da177e4 | 418 | |
b42b63cf SH |
419 | device = pd ? pd->device : qp_init_attr->xrcd->device; |
420 | qp = device->create_qp(pd, qp_init_attr, NULL); | |
1da177e4 LT |
421 | |
422 | if (!IS_ERR(qp)) { | |
0e0ec7e0 SH |
423 | qp->device = device; |
424 | qp->real_qp = qp; | |
425 | qp->uobject = NULL; | |
426 | qp->qp_type = qp_init_attr->qp_type; | |
b42b63cf | 427 | |
e47e321a | 428 | atomic_set(&qp->usecnt, 0); |
b42b63cf | 429 | if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) { |
0e0ec7e0 SH |
430 | qp->event_handler = __ib_shared_qp_event_handler; |
431 | qp->qp_context = qp; | |
b42b63cf SH |
432 | qp->pd = NULL; |
433 | qp->send_cq = qp->recv_cq = NULL; | |
434 | qp->srq = NULL; | |
435 | qp->xrcd = qp_init_attr->xrcd; | |
436 | atomic_inc(&qp_init_attr->xrcd->usecnt); | |
0e0ec7e0 | 437 | INIT_LIST_HEAD(&qp->open_list); |
0e0ec7e0 SH |
438 | |
439 | real_qp = qp; | |
440 | qp = __ib_open_qp(real_qp, qp_init_attr->event_handler, | |
441 | qp_init_attr->qp_context); | |
442 | if (!IS_ERR(qp)) | |
443 | __ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp); | |
444 | else | |
445 | real_qp->device->destroy_qp(real_qp); | |
b42b63cf | 446 | } else { |
0e0ec7e0 SH |
447 | qp->event_handler = qp_init_attr->event_handler; |
448 | qp->qp_context = qp_init_attr->qp_context; | |
b42b63cf SH |
449 | if (qp_init_attr->qp_type == IB_QPT_XRC_INI) { |
450 | qp->recv_cq = NULL; | |
451 | qp->srq = NULL; | |
452 | } else { | |
453 | qp->recv_cq = qp_init_attr->recv_cq; | |
454 | atomic_inc(&qp_init_attr->recv_cq->usecnt); | |
455 | qp->srq = qp_init_attr->srq; | |
456 | if (qp->srq) | |
457 | atomic_inc(&qp_init_attr->srq->usecnt); | |
458 | } | |
459 | ||
460 | qp->pd = pd; | |
461 | qp->send_cq = qp_init_attr->send_cq; | |
462 | qp->xrcd = NULL; | |
463 | ||
464 | atomic_inc(&pd->usecnt); | |
465 | atomic_inc(&qp_init_attr->send_cq->usecnt); | |
466 | } | |
1da177e4 LT |
467 | } |
468 | ||
469 | return qp; | |
470 | } | |
471 | EXPORT_SYMBOL(ib_create_qp); | |
472 | ||
8a51866f RD |
473 | static const struct { |
474 | int valid; | |
b42b63cf SH |
475 | enum ib_qp_attr_mask req_param[IB_QPT_MAX]; |
476 | enum ib_qp_attr_mask opt_param[IB_QPT_MAX]; | |
8a51866f RD |
477 | } qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { |
478 | [IB_QPS_RESET] = { | |
479 | [IB_QPS_RESET] = { .valid = 1 }, | |
8a51866f RD |
480 | [IB_QPS_INIT] = { |
481 | .valid = 1, | |
482 | .req_param = { | |
483 | [IB_QPT_UD] = (IB_QP_PKEY_INDEX | | |
484 | IB_QP_PORT | | |
485 | IB_QP_QKEY), | |
c938a616 | 486 | [IB_QPT_RAW_PACKET] = IB_QP_PORT, |
8a51866f RD |
487 | [IB_QPT_UC] = (IB_QP_PKEY_INDEX | |
488 | IB_QP_PORT | | |
489 | IB_QP_ACCESS_FLAGS), | |
490 | [IB_QPT_RC] = (IB_QP_PKEY_INDEX | | |
491 | IB_QP_PORT | | |
492 | IB_QP_ACCESS_FLAGS), | |
b42b63cf SH |
493 | [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX | |
494 | IB_QP_PORT | | |
495 | IB_QP_ACCESS_FLAGS), | |
496 | [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX | | |
497 | IB_QP_PORT | | |
498 | IB_QP_ACCESS_FLAGS), | |
8a51866f RD |
499 | [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | |
500 | IB_QP_QKEY), | |
501 | [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | | |
502 | IB_QP_QKEY), | |
503 | } | |
504 | }, | |
505 | }, | |
506 | [IB_QPS_INIT] = { | |
507 | [IB_QPS_RESET] = { .valid = 1 }, | |
508 | [IB_QPS_ERR] = { .valid = 1 }, | |
509 | [IB_QPS_INIT] = { | |
510 | .valid = 1, | |
511 | .opt_param = { | |
512 | [IB_QPT_UD] = (IB_QP_PKEY_INDEX | | |
513 | IB_QP_PORT | | |
514 | IB_QP_QKEY), | |
515 | [IB_QPT_UC] = (IB_QP_PKEY_INDEX | | |
516 | IB_QP_PORT | | |
517 | IB_QP_ACCESS_FLAGS), | |
518 | [IB_QPT_RC] = (IB_QP_PKEY_INDEX | | |
519 | IB_QP_PORT | | |
520 | IB_QP_ACCESS_FLAGS), | |
b42b63cf SH |
521 | [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX | |
522 | IB_QP_PORT | | |
523 | IB_QP_ACCESS_FLAGS), | |
524 | [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX | | |
525 | IB_QP_PORT | | |
526 | IB_QP_ACCESS_FLAGS), | |
8a51866f RD |
527 | [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | |
528 | IB_QP_QKEY), | |
529 | [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | | |
530 | IB_QP_QKEY), | |
531 | } | |
532 | }, | |
533 | [IB_QPS_RTR] = { | |
534 | .valid = 1, | |
535 | .req_param = { | |
536 | [IB_QPT_UC] = (IB_QP_AV | | |
537 | IB_QP_PATH_MTU | | |
538 | IB_QP_DEST_QPN | | |
539 | IB_QP_RQ_PSN), | |
540 | [IB_QPT_RC] = (IB_QP_AV | | |
541 | IB_QP_PATH_MTU | | |
542 | IB_QP_DEST_QPN | | |
543 | IB_QP_RQ_PSN | | |
544 | IB_QP_MAX_DEST_RD_ATOMIC | | |
545 | IB_QP_MIN_RNR_TIMER), | |
b42b63cf SH |
546 | [IB_QPT_XRC_INI] = (IB_QP_AV | |
547 | IB_QP_PATH_MTU | | |
548 | IB_QP_DEST_QPN | | |
549 | IB_QP_RQ_PSN), | |
550 | [IB_QPT_XRC_TGT] = (IB_QP_AV | | |
551 | IB_QP_PATH_MTU | | |
552 | IB_QP_DEST_QPN | | |
553 | IB_QP_RQ_PSN | | |
554 | IB_QP_MAX_DEST_RD_ATOMIC | | |
555 | IB_QP_MIN_RNR_TIMER), | |
8a51866f RD |
556 | }, |
557 | .opt_param = { | |
558 | [IB_QPT_UD] = (IB_QP_PKEY_INDEX | | |
559 | IB_QP_QKEY), | |
560 | [IB_QPT_UC] = (IB_QP_ALT_PATH | | |
561 | IB_QP_ACCESS_FLAGS | | |
562 | IB_QP_PKEY_INDEX), | |
563 | [IB_QPT_RC] = (IB_QP_ALT_PATH | | |
564 | IB_QP_ACCESS_FLAGS | | |
565 | IB_QP_PKEY_INDEX), | |
b42b63cf SH |
566 | [IB_QPT_XRC_INI] = (IB_QP_ALT_PATH | |
567 | IB_QP_ACCESS_FLAGS | | |
568 | IB_QP_PKEY_INDEX), | |
569 | [IB_QPT_XRC_TGT] = (IB_QP_ALT_PATH | | |
570 | IB_QP_ACCESS_FLAGS | | |
571 | IB_QP_PKEY_INDEX), | |
8a51866f RD |
572 | [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | |
573 | IB_QP_QKEY), | |
574 | [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | | |
575 | IB_QP_QKEY), | |
576 | } | |
577 | } | |
578 | }, | |
579 | [IB_QPS_RTR] = { | |
580 | [IB_QPS_RESET] = { .valid = 1 }, | |
581 | [IB_QPS_ERR] = { .valid = 1 }, | |
582 | [IB_QPS_RTS] = { | |
583 | .valid = 1, | |
584 | .req_param = { | |
585 | [IB_QPT_UD] = IB_QP_SQ_PSN, | |
586 | [IB_QPT_UC] = IB_QP_SQ_PSN, | |
587 | [IB_QPT_RC] = (IB_QP_TIMEOUT | | |
588 | IB_QP_RETRY_CNT | | |
589 | IB_QP_RNR_RETRY | | |
590 | IB_QP_SQ_PSN | | |
591 | IB_QP_MAX_QP_RD_ATOMIC), | |
b42b63cf SH |
592 | [IB_QPT_XRC_INI] = (IB_QP_TIMEOUT | |
593 | IB_QP_RETRY_CNT | | |
594 | IB_QP_RNR_RETRY | | |
595 | IB_QP_SQ_PSN | | |
596 | IB_QP_MAX_QP_RD_ATOMIC), | |
597 | [IB_QPT_XRC_TGT] = (IB_QP_TIMEOUT | | |
598 | IB_QP_SQ_PSN), | |
8a51866f RD |
599 | [IB_QPT_SMI] = IB_QP_SQ_PSN, |
600 | [IB_QPT_GSI] = IB_QP_SQ_PSN, | |
601 | }, | |
602 | .opt_param = { | |
603 | [IB_QPT_UD] = (IB_QP_CUR_STATE | | |
604 | IB_QP_QKEY), | |
605 | [IB_QPT_UC] = (IB_QP_CUR_STATE | | |
606 | IB_QP_ALT_PATH | | |
607 | IB_QP_ACCESS_FLAGS | | |
608 | IB_QP_PATH_MIG_STATE), | |
609 | [IB_QPT_RC] = (IB_QP_CUR_STATE | | |
610 | IB_QP_ALT_PATH | | |
611 | IB_QP_ACCESS_FLAGS | | |
612 | IB_QP_MIN_RNR_TIMER | | |
613 | IB_QP_PATH_MIG_STATE), | |
b42b63cf SH |
614 | [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | |
615 | IB_QP_ALT_PATH | | |
616 | IB_QP_ACCESS_FLAGS | | |
617 | IB_QP_PATH_MIG_STATE), | |
618 | [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | | |
619 | IB_QP_ALT_PATH | | |
620 | IB_QP_ACCESS_FLAGS | | |
621 | IB_QP_MIN_RNR_TIMER | | |
622 | IB_QP_PATH_MIG_STATE), | |
8a51866f RD |
623 | [IB_QPT_SMI] = (IB_QP_CUR_STATE | |
624 | IB_QP_QKEY), | |
625 | [IB_QPT_GSI] = (IB_QP_CUR_STATE | | |
626 | IB_QP_QKEY), | |
627 | } | |
628 | } | |
629 | }, | |
630 | [IB_QPS_RTS] = { | |
631 | [IB_QPS_RESET] = { .valid = 1 }, | |
632 | [IB_QPS_ERR] = { .valid = 1 }, | |
633 | [IB_QPS_RTS] = { | |
634 | .valid = 1, | |
635 | .opt_param = { | |
636 | [IB_QPT_UD] = (IB_QP_CUR_STATE | | |
637 | IB_QP_QKEY), | |
4546d31d DB |
638 | [IB_QPT_UC] = (IB_QP_CUR_STATE | |
639 | IB_QP_ACCESS_FLAGS | | |
8a51866f RD |
640 | IB_QP_ALT_PATH | |
641 | IB_QP_PATH_MIG_STATE), | |
4546d31d DB |
642 | [IB_QPT_RC] = (IB_QP_CUR_STATE | |
643 | IB_QP_ACCESS_FLAGS | | |
8a51866f RD |
644 | IB_QP_ALT_PATH | |
645 | IB_QP_PATH_MIG_STATE | | |
646 | IB_QP_MIN_RNR_TIMER), | |
b42b63cf SH |
647 | [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | |
648 | IB_QP_ACCESS_FLAGS | | |
649 | IB_QP_ALT_PATH | | |
650 | IB_QP_PATH_MIG_STATE), | |
651 | [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | | |
652 | IB_QP_ACCESS_FLAGS | | |
653 | IB_QP_ALT_PATH | | |
654 | IB_QP_PATH_MIG_STATE | | |
655 | IB_QP_MIN_RNR_TIMER), | |
8a51866f RD |
656 | [IB_QPT_SMI] = (IB_QP_CUR_STATE | |
657 | IB_QP_QKEY), | |
658 | [IB_QPT_GSI] = (IB_QP_CUR_STATE | | |
659 | IB_QP_QKEY), | |
660 | } | |
661 | }, | |
662 | [IB_QPS_SQD] = { | |
663 | .valid = 1, | |
664 | .opt_param = { | |
665 | [IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY, | |
666 | [IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY, | |
667 | [IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY, | |
b42b63cf SH |
668 | [IB_QPT_XRC_INI] = IB_QP_EN_SQD_ASYNC_NOTIFY, |
669 | [IB_QPT_XRC_TGT] = IB_QP_EN_SQD_ASYNC_NOTIFY, /* ??? */ | |
8a51866f RD |
670 | [IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY, |
671 | [IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY | |
672 | } | |
673 | }, | |
674 | }, | |
675 | [IB_QPS_SQD] = { | |
676 | [IB_QPS_RESET] = { .valid = 1 }, | |
677 | [IB_QPS_ERR] = { .valid = 1 }, | |
678 | [IB_QPS_RTS] = { | |
679 | .valid = 1, | |
680 | .opt_param = { | |
681 | [IB_QPT_UD] = (IB_QP_CUR_STATE | | |
682 | IB_QP_QKEY), | |
683 | [IB_QPT_UC] = (IB_QP_CUR_STATE | | |
684 | IB_QP_ALT_PATH | | |
685 | IB_QP_ACCESS_FLAGS | | |
686 | IB_QP_PATH_MIG_STATE), | |
687 | [IB_QPT_RC] = (IB_QP_CUR_STATE | | |
688 | IB_QP_ALT_PATH | | |
689 | IB_QP_ACCESS_FLAGS | | |
690 | IB_QP_MIN_RNR_TIMER | | |
691 | IB_QP_PATH_MIG_STATE), | |
b42b63cf SH |
692 | [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | |
693 | IB_QP_ALT_PATH | | |
694 | IB_QP_ACCESS_FLAGS | | |
695 | IB_QP_PATH_MIG_STATE), | |
696 | [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | | |
697 | IB_QP_ALT_PATH | | |
698 | IB_QP_ACCESS_FLAGS | | |
699 | IB_QP_MIN_RNR_TIMER | | |
700 | IB_QP_PATH_MIG_STATE), | |
8a51866f RD |
701 | [IB_QPT_SMI] = (IB_QP_CUR_STATE | |
702 | IB_QP_QKEY), | |
703 | [IB_QPT_GSI] = (IB_QP_CUR_STATE | | |
704 | IB_QP_QKEY), | |
705 | } | |
706 | }, | |
707 | [IB_QPS_SQD] = { | |
708 | .valid = 1, | |
709 | .opt_param = { | |
710 | [IB_QPT_UD] = (IB_QP_PKEY_INDEX | | |
711 | IB_QP_QKEY), | |
712 | [IB_QPT_UC] = (IB_QP_AV | | |
8a51866f RD |
713 | IB_QP_ALT_PATH | |
714 | IB_QP_ACCESS_FLAGS | | |
715 | IB_QP_PKEY_INDEX | | |
716 | IB_QP_PATH_MIG_STATE), | |
717 | [IB_QPT_RC] = (IB_QP_PORT | | |
718 | IB_QP_AV | | |
719 | IB_QP_TIMEOUT | | |
720 | IB_QP_RETRY_CNT | | |
721 | IB_QP_RNR_RETRY | | |
722 | IB_QP_MAX_QP_RD_ATOMIC | | |
723 | IB_QP_MAX_DEST_RD_ATOMIC | | |
8a51866f RD |
724 | IB_QP_ALT_PATH | |
725 | IB_QP_ACCESS_FLAGS | | |
726 | IB_QP_PKEY_INDEX | | |
727 | IB_QP_MIN_RNR_TIMER | | |
728 | IB_QP_PATH_MIG_STATE), | |
b42b63cf SH |
729 | [IB_QPT_XRC_INI] = (IB_QP_PORT | |
730 | IB_QP_AV | | |
731 | IB_QP_TIMEOUT | | |
732 | IB_QP_RETRY_CNT | | |
733 | IB_QP_RNR_RETRY | | |
734 | IB_QP_MAX_QP_RD_ATOMIC | | |
735 | IB_QP_ALT_PATH | | |
736 | IB_QP_ACCESS_FLAGS | | |
737 | IB_QP_PKEY_INDEX | | |
738 | IB_QP_PATH_MIG_STATE), | |
739 | [IB_QPT_XRC_TGT] = (IB_QP_PORT | | |
740 | IB_QP_AV | | |
741 | IB_QP_TIMEOUT | | |
742 | IB_QP_MAX_DEST_RD_ATOMIC | | |
743 | IB_QP_ALT_PATH | | |
744 | IB_QP_ACCESS_FLAGS | | |
745 | IB_QP_PKEY_INDEX | | |
746 | IB_QP_MIN_RNR_TIMER | | |
747 | IB_QP_PATH_MIG_STATE), | |
8a51866f RD |
748 | [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | |
749 | IB_QP_QKEY), | |
750 | [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | | |
751 | IB_QP_QKEY), | |
752 | } | |
753 | } | |
754 | }, | |
755 | [IB_QPS_SQE] = { | |
756 | [IB_QPS_RESET] = { .valid = 1 }, | |
757 | [IB_QPS_ERR] = { .valid = 1 }, | |
758 | [IB_QPS_RTS] = { | |
759 | .valid = 1, | |
760 | .opt_param = { | |
761 | [IB_QPT_UD] = (IB_QP_CUR_STATE | | |
762 | IB_QP_QKEY), | |
763 | [IB_QPT_UC] = (IB_QP_CUR_STATE | | |
764 | IB_QP_ACCESS_FLAGS), | |
765 | [IB_QPT_SMI] = (IB_QP_CUR_STATE | | |
766 | IB_QP_QKEY), | |
767 | [IB_QPT_GSI] = (IB_QP_CUR_STATE | | |
768 | IB_QP_QKEY), | |
769 | } | |
770 | } | |
771 | }, | |
772 | [IB_QPS_ERR] = { | |
773 | [IB_QPS_RESET] = { .valid = 1 }, | |
774 | [IB_QPS_ERR] = { .valid = 1 } | |
775 | } | |
776 | }; | |
777 | ||
778 | int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, | |
779 | enum ib_qp_type type, enum ib_qp_attr_mask mask) | |
780 | { | |
781 | enum ib_qp_attr_mask req_param, opt_param; | |
782 | ||
783 | if (cur_state < 0 || cur_state > IB_QPS_ERR || | |
784 | next_state < 0 || next_state > IB_QPS_ERR) | |
785 | return 0; | |
786 | ||
787 | if (mask & IB_QP_CUR_STATE && | |
788 | cur_state != IB_QPS_RTR && cur_state != IB_QPS_RTS && | |
789 | cur_state != IB_QPS_SQD && cur_state != IB_QPS_SQE) | |
790 | return 0; | |
791 | ||
792 | if (!qp_state_table[cur_state][next_state].valid) | |
793 | return 0; | |
794 | ||
795 | req_param = qp_state_table[cur_state][next_state].req_param[type]; | |
796 | opt_param = qp_state_table[cur_state][next_state].opt_param[type]; | |
797 | ||
798 | if ((mask & req_param) != req_param) | |
799 | return 0; | |
800 | ||
801 | if (mask & ~(req_param | opt_param | IB_QP_STATE)) | |
802 | return 0; | |
803 | ||
804 | return 1; | |
805 | } | |
806 | EXPORT_SYMBOL(ib_modify_qp_is_ok); | |
807 | ||
1da177e4 LT |
808 | int ib_modify_qp(struct ib_qp *qp, |
809 | struct ib_qp_attr *qp_attr, | |
810 | int qp_attr_mask) | |
811 | { | |
0e0ec7e0 | 812 | return qp->device->modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL); |
1da177e4 LT |
813 | } |
814 | EXPORT_SYMBOL(ib_modify_qp); | |
815 | ||
816 | int ib_query_qp(struct ib_qp *qp, | |
817 | struct ib_qp_attr *qp_attr, | |
818 | int qp_attr_mask, | |
819 | struct ib_qp_init_attr *qp_init_attr) | |
820 | { | |
821 | return qp->device->query_qp ? | |
0e0ec7e0 | 822 | qp->device->query_qp(qp->real_qp, qp_attr, qp_attr_mask, qp_init_attr) : |
1da177e4 LT |
823 | -ENOSYS; |
824 | } | |
825 | EXPORT_SYMBOL(ib_query_qp); | |
826 | ||
0e0ec7e0 SH |
827 | int ib_close_qp(struct ib_qp *qp) |
828 | { | |
829 | struct ib_qp *real_qp; | |
830 | unsigned long flags; | |
831 | ||
832 | real_qp = qp->real_qp; | |
833 | if (real_qp == qp) | |
834 | return -EINVAL; | |
835 | ||
836 | spin_lock_irqsave(&real_qp->device->event_handler_lock, flags); | |
837 | list_del(&qp->open_list); | |
838 | spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags); | |
839 | ||
840 | atomic_dec(&real_qp->usecnt); | |
841 | kfree(qp); | |
842 | ||
843 | return 0; | |
844 | } | |
845 | EXPORT_SYMBOL(ib_close_qp); | |
846 | ||
847 | static int __ib_destroy_shared_qp(struct ib_qp *qp) | |
848 | { | |
849 | struct ib_xrcd *xrcd; | |
850 | struct ib_qp *real_qp; | |
851 | int ret; | |
852 | ||
853 | real_qp = qp->real_qp; | |
854 | xrcd = real_qp->xrcd; | |
855 | ||
856 | mutex_lock(&xrcd->tgt_qp_mutex); | |
857 | ib_close_qp(qp); | |
858 | if (atomic_read(&real_qp->usecnt) == 0) | |
859 | list_del(&real_qp->xrcd_list); | |
860 | else | |
861 | real_qp = NULL; | |
862 | mutex_unlock(&xrcd->tgt_qp_mutex); | |
863 | ||
864 | if (real_qp) { | |
865 | ret = ib_destroy_qp(real_qp); | |
866 | if (!ret) | |
867 | atomic_dec(&xrcd->usecnt); | |
868 | else | |
869 | __ib_insert_xrcd_qp(xrcd, real_qp); | |
870 | } | |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
1da177e4 LT |
875 | int ib_destroy_qp(struct ib_qp *qp) |
876 | { | |
877 | struct ib_pd *pd; | |
878 | struct ib_cq *scq, *rcq; | |
879 | struct ib_srq *srq; | |
880 | int ret; | |
881 | ||
0e0ec7e0 SH |
882 | if (atomic_read(&qp->usecnt)) |
883 | return -EBUSY; | |
884 | ||
885 | if (qp->real_qp != qp) | |
886 | return __ib_destroy_shared_qp(qp); | |
887 | ||
b42b63cf SH |
888 | pd = qp->pd; |
889 | scq = qp->send_cq; | |
890 | rcq = qp->recv_cq; | |
891 | srq = qp->srq; | |
1da177e4 LT |
892 | |
893 | ret = qp->device->destroy_qp(qp); | |
894 | if (!ret) { | |
b42b63cf SH |
895 | if (pd) |
896 | atomic_dec(&pd->usecnt); | |
897 | if (scq) | |
898 | atomic_dec(&scq->usecnt); | |
899 | if (rcq) | |
900 | atomic_dec(&rcq->usecnt); | |
1da177e4 LT |
901 | if (srq) |
902 | atomic_dec(&srq->usecnt); | |
903 | } | |
904 | ||
905 | return ret; | |
906 | } | |
907 | EXPORT_SYMBOL(ib_destroy_qp); | |
908 | ||
909 | /* Completion queues */ | |
910 | ||
911 | struct ib_cq *ib_create_cq(struct ib_device *device, | |
912 | ib_comp_handler comp_handler, | |
913 | void (*event_handler)(struct ib_event *, void *), | |
f4fd0b22 | 914 | void *cq_context, int cqe, int comp_vector) |
1da177e4 LT |
915 | { |
916 | struct ib_cq *cq; | |
917 | ||
f4fd0b22 | 918 | cq = device->create_cq(device, cqe, comp_vector, NULL, NULL); |
1da177e4 LT |
919 | |
920 | if (!IS_ERR(cq)) { | |
921 | cq->device = device; | |
b5e81bf5 | 922 | cq->uobject = NULL; |
1da177e4 LT |
923 | cq->comp_handler = comp_handler; |
924 | cq->event_handler = event_handler; | |
925 | cq->cq_context = cq_context; | |
926 | atomic_set(&cq->usecnt, 0); | |
927 | } | |
928 | ||
929 | return cq; | |
930 | } | |
931 | EXPORT_SYMBOL(ib_create_cq); | |
932 | ||
2dd57162 EC |
933 | int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) |
934 | { | |
935 | return cq->device->modify_cq ? | |
936 | cq->device->modify_cq(cq, cq_count, cq_period) : -ENOSYS; | |
937 | } | |
938 | EXPORT_SYMBOL(ib_modify_cq); | |
939 | ||
1da177e4 LT |
940 | int ib_destroy_cq(struct ib_cq *cq) |
941 | { | |
942 | if (atomic_read(&cq->usecnt)) | |
943 | return -EBUSY; | |
944 | ||
945 | return cq->device->destroy_cq(cq); | |
946 | } | |
947 | EXPORT_SYMBOL(ib_destroy_cq); | |
948 | ||
a74cd4af | 949 | int ib_resize_cq(struct ib_cq *cq, int cqe) |
1da177e4 | 950 | { |
40de2e54 | 951 | return cq->device->resize_cq ? |
33b9b3ee | 952 | cq->device->resize_cq(cq, cqe, NULL) : -ENOSYS; |
1da177e4 LT |
953 | } |
954 | EXPORT_SYMBOL(ib_resize_cq); | |
955 | ||
956 | /* Memory regions */ | |
957 | ||
958 | struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags) | |
959 | { | |
960 | struct ib_mr *mr; | |
961 | ||
962 | mr = pd->device->get_dma_mr(pd, mr_access_flags); | |
963 | ||
964 | if (!IS_ERR(mr)) { | |
b5e81bf5 RD |
965 | mr->device = pd->device; |
966 | mr->pd = pd; | |
967 | mr->uobject = NULL; | |
1da177e4 LT |
968 | atomic_inc(&pd->usecnt); |
969 | atomic_set(&mr->usecnt, 0); | |
970 | } | |
971 | ||
972 | return mr; | |
973 | } | |
974 | EXPORT_SYMBOL(ib_get_dma_mr); | |
975 | ||
976 | struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, | |
977 | struct ib_phys_buf *phys_buf_array, | |
978 | int num_phys_buf, | |
979 | int mr_access_flags, | |
980 | u64 *iova_start) | |
981 | { | |
982 | struct ib_mr *mr; | |
983 | ||
7ce5eacb DB |
984 | if (!pd->device->reg_phys_mr) |
985 | return ERR_PTR(-ENOSYS); | |
986 | ||
1da177e4 LT |
987 | mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf, |
988 | mr_access_flags, iova_start); | |
989 | ||
990 | if (!IS_ERR(mr)) { | |
b5e81bf5 RD |
991 | mr->device = pd->device; |
992 | mr->pd = pd; | |
993 | mr->uobject = NULL; | |
1da177e4 LT |
994 | atomic_inc(&pd->usecnt); |
995 | atomic_set(&mr->usecnt, 0); | |
996 | } | |
997 | ||
998 | return mr; | |
999 | } | |
1000 | EXPORT_SYMBOL(ib_reg_phys_mr); | |
1001 | ||
1002 | int ib_rereg_phys_mr(struct ib_mr *mr, | |
1003 | int mr_rereg_mask, | |
1004 | struct ib_pd *pd, | |
1005 | struct ib_phys_buf *phys_buf_array, | |
1006 | int num_phys_buf, | |
1007 | int mr_access_flags, | |
1008 | u64 *iova_start) | |
1009 | { | |
1010 | struct ib_pd *old_pd; | |
1011 | int ret; | |
1012 | ||
1013 | if (!mr->device->rereg_phys_mr) | |
1014 | return -ENOSYS; | |
1015 | ||
1016 | if (atomic_read(&mr->usecnt)) | |
1017 | return -EBUSY; | |
1018 | ||
1019 | old_pd = mr->pd; | |
1020 | ||
1021 | ret = mr->device->rereg_phys_mr(mr, mr_rereg_mask, pd, | |
1022 | phys_buf_array, num_phys_buf, | |
1023 | mr_access_flags, iova_start); | |
1024 | ||
1025 | if (!ret && (mr_rereg_mask & IB_MR_REREG_PD)) { | |
1026 | atomic_dec(&old_pd->usecnt); | |
1027 | atomic_inc(&pd->usecnt); | |
1028 | } | |
1029 | ||
1030 | return ret; | |
1031 | } | |
1032 | EXPORT_SYMBOL(ib_rereg_phys_mr); | |
1033 | ||
1034 | int ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) | |
1035 | { | |
1036 | return mr->device->query_mr ? | |
1037 | mr->device->query_mr(mr, mr_attr) : -ENOSYS; | |
1038 | } | |
1039 | EXPORT_SYMBOL(ib_query_mr); | |
1040 | ||
1041 | int ib_dereg_mr(struct ib_mr *mr) | |
1042 | { | |
1043 | struct ib_pd *pd; | |
1044 | int ret; | |
1045 | ||
1046 | if (atomic_read(&mr->usecnt)) | |
1047 | return -EBUSY; | |
1048 | ||
1049 | pd = mr->pd; | |
1050 | ret = mr->device->dereg_mr(mr); | |
1051 | if (!ret) | |
1052 | atomic_dec(&pd->usecnt); | |
1053 | ||
1054 | return ret; | |
1055 | } | |
1056 | EXPORT_SYMBOL(ib_dereg_mr); | |
1057 | ||
00f7ec36 SW |
1058 | struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len) |
1059 | { | |
1060 | struct ib_mr *mr; | |
1061 | ||
1062 | if (!pd->device->alloc_fast_reg_mr) | |
1063 | return ERR_PTR(-ENOSYS); | |
1064 | ||
1065 | mr = pd->device->alloc_fast_reg_mr(pd, max_page_list_len); | |
1066 | ||
1067 | if (!IS_ERR(mr)) { | |
1068 | mr->device = pd->device; | |
1069 | mr->pd = pd; | |
1070 | mr->uobject = NULL; | |
1071 | atomic_inc(&pd->usecnt); | |
1072 | atomic_set(&mr->usecnt, 0); | |
1073 | } | |
1074 | ||
1075 | return mr; | |
1076 | } | |
1077 | EXPORT_SYMBOL(ib_alloc_fast_reg_mr); | |
1078 | ||
1079 | struct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list(struct ib_device *device, | |
1080 | int max_page_list_len) | |
1081 | { | |
1082 | struct ib_fast_reg_page_list *page_list; | |
1083 | ||
1084 | if (!device->alloc_fast_reg_page_list) | |
1085 | return ERR_PTR(-ENOSYS); | |
1086 | ||
1087 | page_list = device->alloc_fast_reg_page_list(device, max_page_list_len); | |
1088 | ||
1089 | if (!IS_ERR(page_list)) { | |
1090 | page_list->device = device; | |
1091 | page_list->max_page_list_len = max_page_list_len; | |
1092 | } | |
1093 | ||
1094 | return page_list; | |
1095 | } | |
1096 | EXPORT_SYMBOL(ib_alloc_fast_reg_page_list); | |
1097 | ||
1098 | void ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list) | |
1099 | { | |
1100 | page_list->device->free_fast_reg_page_list(page_list); | |
1101 | } | |
1102 | EXPORT_SYMBOL(ib_free_fast_reg_page_list); | |
1103 | ||
1da177e4 LT |
1104 | /* Memory windows */ |
1105 | ||
7083e42e | 1106 | struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type) |
1da177e4 LT |
1107 | { |
1108 | struct ib_mw *mw; | |
1109 | ||
1110 | if (!pd->device->alloc_mw) | |
1111 | return ERR_PTR(-ENOSYS); | |
1112 | ||
7083e42e | 1113 | mw = pd->device->alloc_mw(pd, type); |
1da177e4 | 1114 | if (!IS_ERR(mw)) { |
b5e81bf5 RD |
1115 | mw->device = pd->device; |
1116 | mw->pd = pd; | |
1117 | mw->uobject = NULL; | |
7083e42e | 1118 | mw->type = type; |
1da177e4 LT |
1119 | atomic_inc(&pd->usecnt); |
1120 | } | |
1121 | ||
1122 | return mw; | |
1123 | } | |
1124 | EXPORT_SYMBOL(ib_alloc_mw); | |
1125 | ||
1126 | int ib_dealloc_mw(struct ib_mw *mw) | |
1127 | { | |
1128 | struct ib_pd *pd; | |
1129 | int ret; | |
1130 | ||
1131 | pd = mw->pd; | |
1132 | ret = mw->device->dealloc_mw(mw); | |
1133 | if (!ret) | |
1134 | atomic_dec(&pd->usecnt); | |
1135 | ||
1136 | return ret; | |
1137 | } | |
1138 | EXPORT_SYMBOL(ib_dealloc_mw); | |
1139 | ||
1140 | /* "Fast" memory regions */ | |
1141 | ||
1142 | struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, | |
1143 | int mr_access_flags, | |
1144 | struct ib_fmr_attr *fmr_attr) | |
1145 | { | |
1146 | struct ib_fmr *fmr; | |
1147 | ||
1148 | if (!pd->device->alloc_fmr) | |
1149 | return ERR_PTR(-ENOSYS); | |
1150 | ||
1151 | fmr = pd->device->alloc_fmr(pd, mr_access_flags, fmr_attr); | |
1152 | if (!IS_ERR(fmr)) { | |
1153 | fmr->device = pd->device; | |
1154 | fmr->pd = pd; | |
1155 | atomic_inc(&pd->usecnt); | |
1156 | } | |
1157 | ||
1158 | return fmr; | |
1159 | } | |
1160 | EXPORT_SYMBOL(ib_alloc_fmr); | |
1161 | ||
1162 | int ib_unmap_fmr(struct list_head *fmr_list) | |
1163 | { | |
1164 | struct ib_fmr *fmr; | |
1165 | ||
1166 | if (list_empty(fmr_list)) | |
1167 | return 0; | |
1168 | ||
1169 | fmr = list_entry(fmr_list->next, struct ib_fmr, list); | |
1170 | return fmr->device->unmap_fmr(fmr_list); | |
1171 | } | |
1172 | EXPORT_SYMBOL(ib_unmap_fmr); | |
1173 | ||
1174 | int ib_dealloc_fmr(struct ib_fmr *fmr) | |
1175 | { | |
1176 | struct ib_pd *pd; | |
1177 | int ret; | |
1178 | ||
1179 | pd = fmr->pd; | |
1180 | ret = fmr->device->dealloc_fmr(fmr); | |
1181 | if (!ret) | |
1182 | atomic_dec(&pd->usecnt); | |
1183 | ||
1184 | return ret; | |
1185 | } | |
1186 | EXPORT_SYMBOL(ib_dealloc_fmr); | |
1187 | ||
1188 | /* Multicast groups */ | |
1189 | ||
1190 | int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) | |
1191 | { | |
c3bccbfb OG |
1192 | int ret; |
1193 | ||
0c33aeed JM |
1194 | if (!qp->device->attach_mcast) |
1195 | return -ENOSYS; | |
1196 | if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) | |
1197 | return -EINVAL; | |
1198 | ||
c3bccbfb OG |
1199 | ret = qp->device->attach_mcast(qp, gid, lid); |
1200 | if (!ret) | |
1201 | atomic_inc(&qp->usecnt); | |
1202 | return ret; | |
1da177e4 LT |
1203 | } |
1204 | EXPORT_SYMBOL(ib_attach_mcast); | |
1205 | ||
1206 | int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) | |
1207 | { | |
c3bccbfb OG |
1208 | int ret; |
1209 | ||
0c33aeed JM |
1210 | if (!qp->device->detach_mcast) |
1211 | return -ENOSYS; | |
1212 | if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) | |
1213 | return -EINVAL; | |
1214 | ||
c3bccbfb OG |
1215 | ret = qp->device->detach_mcast(qp, gid, lid); |
1216 | if (!ret) | |
1217 | atomic_dec(&qp->usecnt); | |
1218 | return ret; | |
1da177e4 LT |
1219 | } |
1220 | EXPORT_SYMBOL(ib_detach_mcast); | |
59991f94 SH |
1221 | |
1222 | struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device) | |
1223 | { | |
1224 | struct ib_xrcd *xrcd; | |
1225 | ||
1226 | if (!device->alloc_xrcd) | |
1227 | return ERR_PTR(-ENOSYS); | |
1228 | ||
1229 | xrcd = device->alloc_xrcd(device, NULL, NULL); | |
1230 | if (!IS_ERR(xrcd)) { | |
1231 | xrcd->device = device; | |
53d0bd1e | 1232 | xrcd->inode = NULL; |
59991f94 | 1233 | atomic_set(&xrcd->usecnt, 0); |
d3d72d90 SH |
1234 | mutex_init(&xrcd->tgt_qp_mutex); |
1235 | INIT_LIST_HEAD(&xrcd->tgt_qp_list); | |
59991f94 SH |
1236 | } |
1237 | ||
1238 | return xrcd; | |
1239 | } | |
1240 | EXPORT_SYMBOL(ib_alloc_xrcd); | |
1241 | ||
1242 | int ib_dealloc_xrcd(struct ib_xrcd *xrcd) | |
1243 | { | |
d3d72d90 SH |
1244 | struct ib_qp *qp; |
1245 | int ret; | |
1246 | ||
59991f94 SH |
1247 | if (atomic_read(&xrcd->usecnt)) |
1248 | return -EBUSY; | |
1249 | ||
d3d72d90 SH |
1250 | while (!list_empty(&xrcd->tgt_qp_list)) { |
1251 | qp = list_entry(xrcd->tgt_qp_list.next, struct ib_qp, xrcd_list); | |
1252 | ret = ib_destroy_qp(qp); | |
1253 | if (ret) | |
1254 | return ret; | |
1255 | } | |
1256 | ||
59991f94 SH |
1257 | return xrcd->device->dealloc_xrcd(xrcd); |
1258 | } | |
1259 | EXPORT_SYMBOL(ib_dealloc_xrcd); | |
319a441d HHZ |
1260 | |
1261 | struct ib_flow *ib_create_flow(struct ib_qp *qp, | |
1262 | struct ib_flow_attr *flow_attr, | |
1263 | int domain) | |
1264 | { | |
1265 | struct ib_flow *flow_id; | |
1266 | if (!qp->device->create_flow) | |
1267 | return ERR_PTR(-ENOSYS); | |
1268 | ||
1269 | flow_id = qp->device->create_flow(qp, flow_attr, domain); | |
1270 | if (!IS_ERR(flow_id)) | |
1271 | atomic_inc(&qp->usecnt); | |
1272 | return flow_id; | |
1273 | } | |
1274 | EXPORT_SYMBOL(ib_create_flow); | |
1275 | ||
1276 | int ib_destroy_flow(struct ib_flow *flow_id) | |
1277 | { | |
1278 | int err; | |
1279 | struct ib_qp *qp = flow_id->qp; | |
1280 | ||
1281 | err = qp->device->destroy_flow(flow_id); | |
1282 | if (!err) | |
1283 | atomic_dec(&qp->usecnt); | |
1284 | return err; | |
1285 | } | |
1286 | EXPORT_SYMBOL(ib_destroy_flow); |