Commit | Line | Data |
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bc38a6ab RD |
1 | /* |
2 | * Copyright (c) 2005 Topspin Communications. All rights reserved. | |
f7c6a7b5 | 3 | * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. |
eb9d3cd5 | 4 | * Copyright (c) 2005 PathScale, Inc. All rights reserved. |
8bdb0e86 | 5 | * Copyright (c) 2006 Mellanox Technologies. All rights reserved. |
bc38a6ab RD |
6 | * |
7 | * This software is available to you under a choice of one of two | |
8 | * licenses. You may choose to be licensed under the terms of the GNU | |
9 | * General Public License (GPL) Version 2, available from the file | |
10 | * COPYING in the main directory of this source tree, or the | |
11 | * OpenIB.org BSD license below: | |
12 | * | |
13 | * Redistribution and use in source and binary forms, with or | |
14 | * without modification, are permitted provided that the following | |
15 | * conditions are met: | |
16 | * | |
17 | * - Redistributions of source code must retain the above | |
18 | * copyright notice, this list of conditions and the following | |
19 | * disclaimer. | |
20 | * | |
21 | * - Redistributions in binary form must reproduce the above | |
22 | * copyright notice, this list of conditions and the following | |
23 | * disclaimer in the documentation and/or other materials | |
24 | * provided with the distribution. | |
25 | * | |
26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
27 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
28 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
29 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
30 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
31 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
32 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
33 | * SOFTWARE. | |
bc38a6ab RD |
34 | */ |
35 | ||
6b73597e | 36 | #include <linux/file.h> |
70a30e16 | 37 | #include <linux/fs.h> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
8ada2c1c | 39 | #include <linux/sched.h> |
6b73597e | 40 | |
7c0f6ba6 | 41 | #include <linux/uaccess.h> |
bc38a6ab | 42 | |
fd3c7904 MB |
43 | #include <rdma/uverbs_types.h> |
44 | #include <rdma/uverbs_std_types.h> | |
45 | #include "rdma_core.h" | |
46 | ||
bc38a6ab | 47 | #include "uverbs.h" |
ed4c54e5 | 48 | #include "core_priv.h" |
bc38a6ab | 49 | |
1e7710f3 MB |
50 | static struct ib_uverbs_completion_event_file * |
51 | ib_uverbs_lookup_comp_file(int fd, struct ib_ucontext *context) | |
52 | { | |
53 | struct ib_uobject *uobj = uobj_get_read(uobj_get_type(comp_channel), | |
54 | fd, context); | |
55 | struct ib_uobject_file *uobj_file; | |
56 | ||
57 | if (IS_ERR(uobj)) | |
58 | return (void *)uobj; | |
59 | ||
60 | uverbs_uobject_get(uobj); | |
61 | uobj_put_read(uobj); | |
62 | ||
63 | uobj_file = container_of(uobj, struct ib_uobject_file, uobj); | |
64 | return container_of(uobj_file, struct ib_uverbs_completion_event_file, | |
65 | uobj_file); | |
66 | } | |
67 | ||
bc38a6ab | 68 | ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, |
057aec0d | 69 | struct ib_device *ib_dev, |
bc38a6ab RD |
70 | const char __user *buf, |
71 | int in_len, int out_len) | |
72 | { | |
73 | struct ib_uverbs_get_context cmd; | |
74 | struct ib_uverbs_get_context_resp resp; | |
75 | struct ib_udata udata; | |
63c47c28 | 76 | struct ib_ucontext *ucontext; |
6b73597e | 77 | struct file *filp; |
43579b5f | 78 | struct ib_rdmacg_object cg_obj; |
63c47c28 | 79 | int ret; |
bc38a6ab RD |
80 | |
81 | if (out_len < sizeof resp) | |
82 | return -ENOSPC; | |
83 | ||
84 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
85 | return -EFAULT; | |
86 | ||
95ed644f | 87 | mutex_lock(&file->mutex); |
63c47c28 RD |
88 | |
89 | if (file->ucontext) { | |
90 | ret = -EINVAL; | |
91 | goto err; | |
92 | } | |
93 | ||
40a20339 AB |
94 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
95 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
96 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
97 | out_len - sizeof(resp)); | |
bc38a6ab | 98 | |
43579b5f PP |
99 | ret = ib_rdmacg_try_charge(&cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE); |
100 | if (ret) | |
101 | goto err; | |
102 | ||
057aec0d | 103 | ucontext = ib_dev->alloc_ucontext(ib_dev, &udata); |
77f76013 | 104 | if (IS_ERR(ucontext)) { |
df42245a | 105 | ret = PTR_ERR(ucontext); |
43579b5f | 106 | goto err_alloc; |
77f76013 | 107 | } |
bc38a6ab | 108 | |
057aec0d | 109 | ucontext->device = ib_dev; |
43579b5f | 110 | ucontext->cg_obj = cg_obj; |
771addf6 MB |
111 | /* ufile is required when some objects are released */ |
112 | ucontext->ufile = file; | |
fd3c7904 MB |
113 | uverbs_initialize_ucontext(ucontext); |
114 | ||
8ada2c1c SR |
115 | rcu_read_lock(); |
116 | ucontext->tgid = get_task_pid(current->group_leader, PIDTYPE_PID); | |
117 | rcu_read_unlock(); | |
f7c6a7b5 | 118 | ucontext->closing = 0; |
bc38a6ab | 119 | |
882214e2 | 120 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
f808c13f | 121 | ucontext->umem_tree = RB_ROOT_CACHED; |
882214e2 HE |
122 | init_rwsem(&ucontext->umem_rwsem); |
123 | ucontext->odp_mrs_count = 0; | |
124 | INIT_LIST_HEAD(&ucontext->no_private_counters); | |
125 | ||
86bee4c9 | 126 | if (!(ib_dev->attrs.device_cap_flags & IB_DEVICE_ON_DEMAND_PAGING)) |
882214e2 HE |
127 | ucontext->invalidate_range = NULL; |
128 | ||
129 | #endif | |
130 | ||
6b73597e RD |
131 | resp.num_comp_vectors = file->device->num_comp_vectors; |
132 | ||
da183c7a | 133 | ret = get_unused_fd_flags(O_CLOEXEC); |
b1e4594b AV |
134 | if (ret < 0) |
135 | goto err_free; | |
136 | resp.async_fd = ret; | |
137 | ||
1e7710f3 | 138 | filp = ib_uverbs_alloc_async_event_file(file, ib_dev); |
6b73597e RD |
139 | if (IS_ERR(filp)) { |
140 | ret = PTR_ERR(filp); | |
b1e4594b | 141 | goto err_fd; |
6b73597e | 142 | } |
bc38a6ab | 143 | |
40a20339 | 144 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { |
63c47c28 | 145 | ret = -EFAULT; |
6b73597e | 146 | goto err_file; |
63c47c28 RD |
147 | } |
148 | ||
70a30e16 | 149 | file->ucontext = ucontext; |
6b73597e RD |
150 | |
151 | fd_install(resp.async_fd, filp); | |
152 | ||
95ed644f | 153 | mutex_unlock(&file->mutex); |
bc38a6ab RD |
154 | |
155 | return in_len; | |
156 | ||
6b73597e | 157 | err_file: |
03c40442 | 158 | ib_uverbs_free_async_event_file(file); |
6b73597e RD |
159 | fput(filp); |
160 | ||
b1e4594b AV |
161 | err_fd: |
162 | put_unused_fd(resp.async_fd); | |
163 | ||
63c47c28 | 164 | err_free: |
8ada2c1c | 165 | put_pid(ucontext->tgid); |
057aec0d | 166 | ib_dev->dealloc_ucontext(ucontext); |
bc38a6ab | 167 | |
43579b5f PP |
168 | err_alloc: |
169 | ib_rdmacg_uncharge(&cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE); | |
170 | ||
63c47c28 | 171 | err: |
95ed644f | 172 | mutex_unlock(&file->mutex); |
63c47c28 | 173 | return ret; |
bc38a6ab RD |
174 | } |
175 | ||
02d1aa7a | 176 | static void copy_query_dev_fields(struct ib_uverbs_file *file, |
057aec0d | 177 | struct ib_device *ib_dev, |
02d1aa7a EC |
178 | struct ib_uverbs_query_device_resp *resp, |
179 | struct ib_device_attr *attr) | |
180 | { | |
181 | resp->fw_ver = attr->fw_ver; | |
057aec0d | 182 | resp->node_guid = ib_dev->node_guid; |
02d1aa7a EC |
183 | resp->sys_image_guid = attr->sys_image_guid; |
184 | resp->max_mr_size = attr->max_mr_size; | |
185 | resp->page_size_cap = attr->page_size_cap; | |
186 | resp->vendor_id = attr->vendor_id; | |
187 | resp->vendor_part_id = attr->vendor_part_id; | |
188 | resp->hw_ver = attr->hw_ver; | |
189 | resp->max_qp = attr->max_qp; | |
190 | resp->max_qp_wr = attr->max_qp_wr; | |
fb532d6a | 191 | resp->device_cap_flags = lower_32_bits(attr->device_cap_flags); |
02d1aa7a EC |
192 | resp->max_sge = attr->max_sge; |
193 | resp->max_sge_rd = attr->max_sge_rd; | |
194 | resp->max_cq = attr->max_cq; | |
195 | resp->max_cqe = attr->max_cqe; | |
196 | resp->max_mr = attr->max_mr; | |
197 | resp->max_pd = attr->max_pd; | |
198 | resp->max_qp_rd_atom = attr->max_qp_rd_atom; | |
199 | resp->max_ee_rd_atom = attr->max_ee_rd_atom; | |
200 | resp->max_res_rd_atom = attr->max_res_rd_atom; | |
201 | resp->max_qp_init_rd_atom = attr->max_qp_init_rd_atom; | |
202 | resp->max_ee_init_rd_atom = attr->max_ee_init_rd_atom; | |
203 | resp->atomic_cap = attr->atomic_cap; | |
204 | resp->max_ee = attr->max_ee; | |
205 | resp->max_rdd = attr->max_rdd; | |
206 | resp->max_mw = attr->max_mw; | |
207 | resp->max_raw_ipv6_qp = attr->max_raw_ipv6_qp; | |
208 | resp->max_raw_ethy_qp = attr->max_raw_ethy_qp; | |
209 | resp->max_mcast_grp = attr->max_mcast_grp; | |
210 | resp->max_mcast_qp_attach = attr->max_mcast_qp_attach; | |
211 | resp->max_total_mcast_qp_attach = attr->max_total_mcast_qp_attach; | |
212 | resp->max_ah = attr->max_ah; | |
213 | resp->max_fmr = attr->max_fmr; | |
214 | resp->max_map_per_fmr = attr->max_map_per_fmr; | |
215 | resp->max_srq = attr->max_srq; | |
216 | resp->max_srq_wr = attr->max_srq_wr; | |
217 | resp->max_srq_sge = attr->max_srq_sge; | |
218 | resp->max_pkeys = attr->max_pkeys; | |
219 | resp->local_ca_ack_delay = attr->local_ca_ack_delay; | |
057aec0d | 220 | resp->phys_port_cnt = ib_dev->phys_port_cnt; |
02d1aa7a EC |
221 | } |
222 | ||
bc38a6ab | 223 | ssize_t ib_uverbs_query_device(struct ib_uverbs_file *file, |
057aec0d | 224 | struct ib_device *ib_dev, |
bc38a6ab RD |
225 | const char __user *buf, |
226 | int in_len, int out_len) | |
227 | { | |
228 | struct ib_uverbs_query_device cmd; | |
229 | struct ib_uverbs_query_device_resp resp; | |
bc38a6ab RD |
230 | |
231 | if (out_len < sizeof resp) | |
232 | return -ENOSPC; | |
233 | ||
234 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
235 | return -EFAULT; | |
236 | ||
bc38a6ab | 237 | memset(&resp, 0, sizeof resp); |
86bee4c9 | 238 | copy_query_dev_fields(file, ib_dev, &resp, &ib_dev->attrs); |
bc38a6ab | 239 | |
40a20339 | 240 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
bc38a6ab RD |
241 | return -EFAULT; |
242 | ||
243 | return in_len; | |
244 | } | |
245 | ||
246 | ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file, | |
057aec0d | 247 | struct ib_device *ib_dev, |
bc38a6ab RD |
248 | const char __user *buf, |
249 | int in_len, int out_len) | |
250 | { | |
251 | struct ib_uverbs_query_port cmd; | |
252 | struct ib_uverbs_query_port_resp resp; | |
253 | struct ib_port_attr attr; | |
254 | int ret; | |
255 | ||
256 | if (out_len < sizeof resp) | |
257 | return -ENOSPC; | |
258 | ||
259 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
260 | return -EFAULT; | |
261 | ||
057aec0d | 262 | ret = ib_query_port(ib_dev, cmd.port_num, &attr); |
bc38a6ab RD |
263 | if (ret) |
264 | return ret; | |
265 | ||
266 | memset(&resp, 0, sizeof resp); | |
267 | ||
268 | resp.state = attr.state; | |
269 | resp.max_mtu = attr.max_mtu; | |
270 | resp.active_mtu = attr.active_mtu; | |
271 | resp.gid_tbl_len = attr.gid_tbl_len; | |
272 | resp.port_cap_flags = attr.port_cap_flags; | |
273 | resp.max_msg_sz = attr.max_msg_sz; | |
274 | resp.bad_pkey_cntr = attr.bad_pkey_cntr; | |
275 | resp.qkey_viol_cntr = attr.qkey_viol_cntr; | |
276 | resp.pkey_tbl_len = attr.pkey_tbl_len; | |
62ede777 | 277 | |
db58540b | 278 | if (rdma_cap_opa_ah(ib_dev, cmd.port_num)) { |
62ede777 | 279 | resp.lid = OPA_TO_IB_UCAST_LID(attr.lid); |
db58540b DC |
280 | resp.sm_lid = OPA_TO_IB_UCAST_LID(attr.sm_lid); |
281 | } else { | |
62ede777 HD |
282 | resp.lid = ib_lid_cpu16(attr.lid); |
283 | resp.sm_lid = ib_lid_cpu16(attr.sm_lid); | |
db58540b | 284 | } |
bc38a6ab RD |
285 | resp.lmc = attr.lmc; |
286 | resp.max_vl_num = attr.max_vl_num; | |
287 | resp.sm_sl = attr.sm_sl; | |
288 | resp.subnet_timeout = attr.subnet_timeout; | |
289 | resp.init_type_reply = attr.init_type_reply; | |
290 | resp.active_width = attr.active_width; | |
291 | resp.active_speed = attr.active_speed; | |
292 | resp.phys_state = attr.phys_state; | |
057aec0d | 293 | resp.link_layer = rdma_port_get_link_layer(ib_dev, |
2420b60b | 294 | cmd.port_num); |
bc38a6ab | 295 | |
40a20339 | 296 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
bc38a6ab RD |
297 | return -EFAULT; |
298 | ||
299 | return in_len; | |
300 | } | |
301 | ||
bc38a6ab | 302 | ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file, |
057aec0d | 303 | struct ib_device *ib_dev, |
bc38a6ab RD |
304 | const char __user *buf, |
305 | int in_len, int out_len) | |
306 | { | |
307 | struct ib_uverbs_alloc_pd cmd; | |
308 | struct ib_uverbs_alloc_pd_resp resp; | |
309 | struct ib_udata udata; | |
310 | struct ib_uobject *uobj; | |
311 | struct ib_pd *pd; | |
312 | int ret; | |
313 | ||
314 | if (out_len < sizeof resp) | |
315 | return -ENOSPC; | |
316 | ||
317 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
318 | return -EFAULT; | |
319 | ||
40a20339 AB |
320 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
321 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
322 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
323 | out_len - sizeof(resp)); | |
bc38a6ab | 324 | |
fd3c7904 MB |
325 | uobj = uobj_alloc(uobj_get_type(pd), file->ucontext); |
326 | if (IS_ERR(uobj)) | |
327 | return PTR_ERR(uobj); | |
bc38a6ab | 328 | |
057aec0d | 329 | pd = ib_dev->alloc_pd(ib_dev, file->ucontext, &udata); |
bc38a6ab RD |
330 | if (IS_ERR(pd)) { |
331 | ret = PTR_ERR(pd); | |
332 | goto err; | |
333 | } | |
334 | ||
057aec0d | 335 | pd->device = ib_dev; |
bc38a6ab | 336 | pd->uobject = uobj; |
50d46335 | 337 | pd->__internal_mr = NULL; |
bc38a6ab RD |
338 | atomic_set(&pd->usecnt, 0); |
339 | ||
9ead190b | 340 | uobj->object = pd; |
bc38a6ab RD |
341 | memset(&resp, 0, sizeof resp); |
342 | resp.pd_handle = uobj->id; | |
343 | ||
40a20339 | 344 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { |
bc38a6ab | 345 | ret = -EFAULT; |
9ead190b | 346 | goto err_copy; |
bc38a6ab RD |
347 | } |
348 | ||
fd3c7904 | 349 | uobj_alloc_commit(uobj); |
bc38a6ab | 350 | |
eb9d3cd5 RD |
351 | return in_len; |
352 | ||
9ead190b | 353 | err_copy: |
bc38a6ab RD |
354 | ib_dealloc_pd(pd); |
355 | ||
356 | err: | |
fd3c7904 | 357 | uobj_alloc_abort(uobj); |
bc38a6ab RD |
358 | return ret; |
359 | } | |
360 | ||
361 | ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file, | |
057aec0d | 362 | struct ib_device *ib_dev, |
bc38a6ab RD |
363 | const char __user *buf, |
364 | int in_len, int out_len) | |
365 | { | |
366 | struct ib_uverbs_dealloc_pd cmd; | |
bc38a6ab | 367 | struct ib_uobject *uobj; |
9ead190b | 368 | int ret; |
bc38a6ab RD |
369 | |
370 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
371 | return -EFAULT; | |
372 | ||
fd3c7904 MB |
373 | uobj = uobj_get_write(uobj_get_type(pd), cmd.pd_handle, |
374 | file->ucontext); | |
375 | if (IS_ERR(uobj)) | |
376 | return PTR_ERR(uobj); | |
bc38a6ab | 377 | |
fd3c7904 | 378 | ret = uobj_remove_commit(uobj); |
bc38a6ab | 379 | |
fd3c7904 | 380 | return ret ?: in_len; |
bc38a6ab RD |
381 | } |
382 | ||
53d0bd1e SH |
383 | struct xrcd_table_entry { |
384 | struct rb_node node; | |
385 | struct ib_xrcd *xrcd; | |
386 | struct inode *inode; | |
387 | }; | |
388 | ||
389 | static int xrcd_table_insert(struct ib_uverbs_device *dev, | |
390 | struct inode *inode, | |
391 | struct ib_xrcd *xrcd) | |
392 | { | |
393 | struct xrcd_table_entry *entry, *scan; | |
394 | struct rb_node **p = &dev->xrcd_tree.rb_node; | |
395 | struct rb_node *parent = NULL; | |
396 | ||
397 | entry = kmalloc(sizeof *entry, GFP_KERNEL); | |
398 | if (!entry) | |
399 | return -ENOMEM; | |
400 | ||
401 | entry->xrcd = xrcd; | |
402 | entry->inode = inode; | |
403 | ||
404 | while (*p) { | |
405 | parent = *p; | |
406 | scan = rb_entry(parent, struct xrcd_table_entry, node); | |
407 | ||
408 | if (inode < scan->inode) { | |
409 | p = &(*p)->rb_left; | |
410 | } else if (inode > scan->inode) { | |
411 | p = &(*p)->rb_right; | |
412 | } else { | |
413 | kfree(entry); | |
414 | return -EEXIST; | |
415 | } | |
416 | } | |
417 | ||
418 | rb_link_node(&entry->node, parent, p); | |
419 | rb_insert_color(&entry->node, &dev->xrcd_tree); | |
420 | igrab(inode); | |
421 | return 0; | |
422 | } | |
423 | ||
424 | static struct xrcd_table_entry *xrcd_table_search(struct ib_uverbs_device *dev, | |
425 | struct inode *inode) | |
426 | { | |
427 | struct xrcd_table_entry *entry; | |
428 | struct rb_node *p = dev->xrcd_tree.rb_node; | |
429 | ||
430 | while (p) { | |
431 | entry = rb_entry(p, struct xrcd_table_entry, node); | |
432 | ||
433 | if (inode < entry->inode) | |
434 | p = p->rb_left; | |
435 | else if (inode > entry->inode) | |
436 | p = p->rb_right; | |
437 | else | |
438 | return entry; | |
439 | } | |
440 | ||
441 | return NULL; | |
442 | } | |
443 | ||
444 | static struct ib_xrcd *find_xrcd(struct ib_uverbs_device *dev, struct inode *inode) | |
445 | { | |
446 | struct xrcd_table_entry *entry; | |
447 | ||
448 | entry = xrcd_table_search(dev, inode); | |
449 | if (!entry) | |
450 | return NULL; | |
451 | ||
452 | return entry->xrcd; | |
453 | } | |
454 | ||
455 | static void xrcd_table_delete(struct ib_uverbs_device *dev, | |
456 | struct inode *inode) | |
457 | { | |
458 | struct xrcd_table_entry *entry; | |
459 | ||
460 | entry = xrcd_table_search(dev, inode); | |
461 | if (entry) { | |
462 | iput(inode); | |
463 | rb_erase(&entry->node, &dev->xrcd_tree); | |
464 | kfree(entry); | |
465 | } | |
466 | } | |
467 | ||
468 | ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file, | |
057aec0d | 469 | struct ib_device *ib_dev, |
53d0bd1e SH |
470 | const char __user *buf, int in_len, |
471 | int out_len) | |
472 | { | |
473 | struct ib_uverbs_open_xrcd cmd; | |
474 | struct ib_uverbs_open_xrcd_resp resp; | |
475 | struct ib_udata udata; | |
476 | struct ib_uxrcd_object *obj; | |
477 | struct ib_xrcd *xrcd = NULL; | |
2903ff01 | 478 | struct fd f = {NULL, 0}; |
53d0bd1e | 479 | struct inode *inode = NULL; |
2903ff01 | 480 | int ret = 0; |
53d0bd1e SH |
481 | int new_xrcd = 0; |
482 | ||
483 | if (out_len < sizeof resp) | |
484 | return -ENOSPC; | |
485 | ||
486 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
487 | return -EFAULT; | |
488 | ||
40a20339 AB |
489 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
490 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
491 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
492 | out_len - sizeof(resp)); | |
53d0bd1e SH |
493 | |
494 | mutex_lock(&file->device->xrcd_tree_mutex); | |
495 | ||
496 | if (cmd.fd != -1) { | |
497 | /* search for file descriptor */ | |
2903ff01 AV |
498 | f = fdget(cmd.fd); |
499 | if (!f.file) { | |
53d0bd1e SH |
500 | ret = -EBADF; |
501 | goto err_tree_mutex_unlock; | |
502 | } | |
503 | ||
496ad9aa | 504 | inode = file_inode(f.file); |
53d0bd1e SH |
505 | xrcd = find_xrcd(file->device, inode); |
506 | if (!xrcd && !(cmd.oflags & O_CREAT)) { | |
507 | /* no file descriptor. Need CREATE flag */ | |
508 | ret = -EAGAIN; | |
509 | goto err_tree_mutex_unlock; | |
510 | } | |
511 | ||
512 | if (xrcd && cmd.oflags & O_EXCL) { | |
513 | ret = -EINVAL; | |
514 | goto err_tree_mutex_unlock; | |
515 | } | |
516 | } | |
517 | ||
fd3c7904 MB |
518 | obj = (struct ib_uxrcd_object *)uobj_alloc(uobj_get_type(xrcd), |
519 | file->ucontext); | |
520 | if (IS_ERR(obj)) { | |
521 | ret = PTR_ERR(obj); | |
53d0bd1e SH |
522 | goto err_tree_mutex_unlock; |
523 | } | |
524 | ||
53d0bd1e | 525 | if (!xrcd) { |
057aec0d | 526 | xrcd = ib_dev->alloc_xrcd(ib_dev, file->ucontext, &udata); |
53d0bd1e SH |
527 | if (IS_ERR(xrcd)) { |
528 | ret = PTR_ERR(xrcd); | |
529 | goto err; | |
530 | } | |
531 | ||
532 | xrcd->inode = inode; | |
057aec0d | 533 | xrcd->device = ib_dev; |
53d0bd1e SH |
534 | atomic_set(&xrcd->usecnt, 0); |
535 | mutex_init(&xrcd->tgt_qp_mutex); | |
536 | INIT_LIST_HEAD(&xrcd->tgt_qp_list); | |
537 | new_xrcd = 1; | |
538 | } | |
539 | ||
540 | atomic_set(&obj->refcnt, 0); | |
541 | obj->uobject.object = xrcd; | |
53d0bd1e SH |
542 | memset(&resp, 0, sizeof resp); |
543 | resp.xrcd_handle = obj->uobject.id; | |
544 | ||
545 | if (inode) { | |
546 | if (new_xrcd) { | |
547 | /* create new inode/xrcd table entry */ | |
548 | ret = xrcd_table_insert(file->device, inode, xrcd); | |
549 | if (ret) | |
fd3c7904 | 550 | goto err_dealloc_xrcd; |
53d0bd1e SH |
551 | } |
552 | atomic_inc(&xrcd->usecnt); | |
553 | } | |
554 | ||
40a20339 | 555 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { |
53d0bd1e SH |
556 | ret = -EFAULT; |
557 | goto err_copy; | |
558 | } | |
559 | ||
2903ff01 AV |
560 | if (f.file) |
561 | fdput(f); | |
53d0bd1e | 562 | |
fd3c7904 | 563 | uobj_alloc_commit(&obj->uobject); |
53d0bd1e SH |
564 | |
565 | mutex_unlock(&file->device->xrcd_tree_mutex); | |
566 | return in_len; | |
567 | ||
568 | err_copy: | |
569 | if (inode) { | |
570 | if (new_xrcd) | |
571 | xrcd_table_delete(file->device, inode); | |
572 | atomic_dec(&xrcd->usecnt); | |
573 | } | |
574 | ||
fd3c7904 | 575 | err_dealloc_xrcd: |
53d0bd1e SH |
576 | ib_dealloc_xrcd(xrcd); |
577 | ||
578 | err: | |
fd3c7904 | 579 | uobj_alloc_abort(&obj->uobject); |
53d0bd1e SH |
580 | |
581 | err_tree_mutex_unlock: | |
2903ff01 AV |
582 | if (f.file) |
583 | fdput(f); | |
53d0bd1e SH |
584 | |
585 | mutex_unlock(&file->device->xrcd_tree_mutex); | |
586 | ||
587 | return ret; | |
588 | } | |
589 | ||
590 | ssize_t ib_uverbs_close_xrcd(struct ib_uverbs_file *file, | |
057aec0d | 591 | struct ib_device *ib_dev, |
53d0bd1e SH |
592 | const char __user *buf, int in_len, |
593 | int out_len) | |
594 | { | |
595 | struct ib_uverbs_close_xrcd cmd; | |
596 | struct ib_uobject *uobj; | |
53d0bd1e SH |
597 | int ret = 0; |
598 | ||
599 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
600 | return -EFAULT; | |
601 | ||
fd3c7904 MB |
602 | uobj = uobj_get_write(uobj_get_type(xrcd), cmd.xrcd_handle, |
603 | file->ucontext); | |
604 | if (IS_ERR(uobj)) { | |
605 | mutex_unlock(&file->device->xrcd_tree_mutex); | |
606 | return PTR_ERR(uobj); | |
53d0bd1e SH |
607 | } |
608 | ||
fd3c7904 MB |
609 | ret = uobj_remove_commit(uobj); |
610 | return ret ?: in_len; | |
53d0bd1e SH |
611 | } |
612 | ||
6be60aed MB |
613 | int ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, |
614 | struct ib_xrcd *xrcd, | |
615 | enum rdma_remove_reason why) | |
53d0bd1e SH |
616 | { |
617 | struct inode *inode; | |
6be60aed | 618 | int ret; |
53d0bd1e SH |
619 | |
620 | inode = xrcd->inode; | |
621 | if (inode && !atomic_dec_and_test(&xrcd->usecnt)) | |
6be60aed | 622 | return 0; |
53d0bd1e | 623 | |
6be60aed | 624 | ret = ib_dealloc_xrcd(xrcd); |
53d0bd1e | 625 | |
6be60aed MB |
626 | if (why == RDMA_REMOVE_DESTROY && ret) |
627 | atomic_inc(&xrcd->usecnt); | |
628 | else if (inode) | |
53d0bd1e | 629 | xrcd_table_delete(dev, inode); |
6be60aed MB |
630 | |
631 | return ret; | |
53d0bd1e SH |
632 | } |
633 | ||
bc38a6ab | 634 | ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, |
057aec0d | 635 | struct ib_device *ib_dev, |
bc38a6ab RD |
636 | const char __user *buf, int in_len, |
637 | int out_len) | |
638 | { | |
639 | struct ib_uverbs_reg_mr cmd; | |
640 | struct ib_uverbs_reg_mr_resp resp; | |
641 | struct ib_udata udata; | |
f7c6a7b5 | 642 | struct ib_uobject *uobj; |
bc38a6ab RD |
643 | struct ib_pd *pd; |
644 | struct ib_mr *mr; | |
645 | int ret; | |
646 | ||
647 | if (out_len < sizeof resp) | |
648 | return -ENOSPC; | |
649 | ||
650 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
651 | return -EFAULT; | |
652 | ||
40a20339 AB |
653 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
654 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
655 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
656 | out_len - sizeof(resp)); | |
bc38a6ab RD |
657 | |
658 | if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)) | |
659 | return -EINVAL; | |
660 | ||
1c636f80 EC |
661 | ret = ib_check_mr_access(cmd.access_flags); |
662 | if (ret) | |
663 | return ret; | |
f575394f | 664 | |
fd3c7904 MB |
665 | uobj = uobj_alloc(uobj_get_type(mr), file->ucontext); |
666 | if (IS_ERR(uobj)) | |
667 | return PTR_ERR(uobj); | |
bc38a6ab | 668 | |
fd3c7904 | 669 | pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext); |
aaf1aef5 RD |
670 | if (!pd) { |
671 | ret = -EINVAL; | |
f7c6a7b5 | 672 | goto err_free; |
aaf1aef5 | 673 | } |
bc38a6ab | 674 | |
860f10a7 | 675 | if (cmd.access_flags & IB_ACCESS_ON_DEMAND) { |
86bee4c9 OG |
676 | if (!(pd->device->attrs.device_cap_flags & |
677 | IB_DEVICE_ON_DEMAND_PAGING)) { | |
860f10a7 SG |
678 | pr_debug("ODP support not available\n"); |
679 | ret = -EINVAL; | |
680 | goto err_put; | |
681 | } | |
682 | } | |
683 | ||
f7c6a7b5 RD |
684 | mr = pd->device->reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va, |
685 | cmd.access_flags, &udata); | |
bc38a6ab RD |
686 | if (IS_ERR(mr)) { |
687 | ret = PTR_ERR(mr); | |
9ead190b | 688 | goto err_put; |
bc38a6ab RD |
689 | } |
690 | ||
691 | mr->device = pd->device; | |
692 | mr->pd = pd; | |
f7c6a7b5 | 693 | mr->uobject = uobj; |
bc38a6ab | 694 | atomic_inc(&pd->usecnt); |
bc38a6ab | 695 | |
f7c6a7b5 | 696 | uobj->object = mr; |
bc38a6ab | 697 | |
9ead190b RD |
698 | memset(&resp, 0, sizeof resp); |
699 | resp.lkey = mr->lkey; | |
700 | resp.rkey = mr->rkey; | |
f7c6a7b5 | 701 | resp.mr_handle = uobj->id; |
bc38a6ab | 702 | |
40a20339 | 703 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { |
bc38a6ab | 704 | ret = -EFAULT; |
9ead190b | 705 | goto err_copy; |
bc38a6ab RD |
706 | } |
707 | ||
fd3c7904 | 708 | uobj_put_obj_read(pd); |
eb9d3cd5 | 709 | |
fd3c7904 | 710 | uobj_alloc_commit(uobj); |
bc38a6ab RD |
711 | |
712 | return in_len; | |
713 | ||
9ead190b | 714 | err_copy: |
bc38a6ab RD |
715 | ib_dereg_mr(mr); |
716 | ||
9ead190b | 717 | err_put: |
fd3c7904 | 718 | uobj_put_obj_read(pd); |
bc38a6ab | 719 | |
bc38a6ab | 720 | err_free: |
fd3c7904 | 721 | uobj_alloc_abort(uobj); |
bc38a6ab RD |
722 | return ret; |
723 | } | |
724 | ||
7e6edb9b | 725 | ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file, |
057aec0d | 726 | struct ib_device *ib_dev, |
7e6edb9b MB |
727 | const char __user *buf, int in_len, |
728 | int out_len) | |
729 | { | |
730 | struct ib_uverbs_rereg_mr cmd; | |
731 | struct ib_uverbs_rereg_mr_resp resp; | |
732 | struct ib_udata udata; | |
733 | struct ib_pd *pd = NULL; | |
734 | struct ib_mr *mr; | |
735 | struct ib_pd *old_pd; | |
736 | int ret; | |
737 | struct ib_uobject *uobj; | |
738 | ||
739 | if (out_len < sizeof(resp)) | |
740 | return -ENOSPC; | |
741 | ||
742 | if (copy_from_user(&cmd, buf, sizeof(cmd))) | |
743 | return -EFAULT; | |
744 | ||
40a20339 AB |
745 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
746 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
747 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
748 | out_len - sizeof(resp)); | |
7e6edb9b MB |
749 | |
750 | if (cmd.flags & ~IB_MR_REREG_SUPPORTED || !cmd.flags) | |
751 | return -EINVAL; | |
752 | ||
753 | if ((cmd.flags & IB_MR_REREG_TRANS) && | |
754 | (!cmd.start || !cmd.hca_va || 0 >= cmd.length || | |
755 | (cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK))) | |
756 | return -EINVAL; | |
757 | ||
fd3c7904 MB |
758 | uobj = uobj_get_write(uobj_get_type(mr), cmd.mr_handle, |
759 | file->ucontext); | |
760 | if (IS_ERR(uobj)) | |
761 | return PTR_ERR(uobj); | |
7e6edb9b MB |
762 | |
763 | mr = uobj->object; | |
764 | ||
765 | if (cmd.flags & IB_MR_REREG_ACCESS) { | |
766 | ret = ib_check_mr_access(cmd.access_flags); | |
767 | if (ret) | |
768 | goto put_uobjs; | |
769 | } | |
770 | ||
771 | if (cmd.flags & IB_MR_REREG_PD) { | |
fd3c7904 | 772 | pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext); |
7e6edb9b MB |
773 | if (!pd) { |
774 | ret = -EINVAL; | |
775 | goto put_uobjs; | |
776 | } | |
777 | } | |
778 | ||
7e6edb9b MB |
779 | old_pd = mr->pd; |
780 | ret = mr->device->rereg_user_mr(mr, cmd.flags, cmd.start, | |
781 | cmd.length, cmd.hca_va, | |
782 | cmd.access_flags, pd, &udata); | |
783 | if (!ret) { | |
784 | if (cmd.flags & IB_MR_REREG_PD) { | |
785 | atomic_inc(&pd->usecnt); | |
786 | mr->pd = pd; | |
787 | atomic_dec(&old_pd->usecnt); | |
788 | } | |
789 | } else { | |
790 | goto put_uobj_pd; | |
791 | } | |
792 | ||
793 | memset(&resp, 0, sizeof(resp)); | |
794 | resp.lkey = mr->lkey; | |
795 | resp.rkey = mr->rkey; | |
796 | ||
40a20339 | 797 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof(resp))) |
7e6edb9b MB |
798 | ret = -EFAULT; |
799 | else | |
800 | ret = in_len; | |
801 | ||
802 | put_uobj_pd: | |
803 | if (cmd.flags & IB_MR_REREG_PD) | |
fd3c7904 | 804 | uobj_put_obj_read(pd); |
7e6edb9b MB |
805 | |
806 | put_uobjs: | |
fd3c7904 | 807 | uobj_put_write(uobj); |
7e6edb9b MB |
808 | |
809 | return ret; | |
810 | } | |
811 | ||
bc38a6ab | 812 | ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file, |
057aec0d | 813 | struct ib_device *ib_dev, |
bc38a6ab RD |
814 | const char __user *buf, int in_len, |
815 | int out_len) | |
816 | { | |
817 | struct ib_uverbs_dereg_mr cmd; | |
9ead190b | 818 | struct ib_uobject *uobj; |
bc38a6ab RD |
819 | int ret = -EINVAL; |
820 | ||
821 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
822 | return -EFAULT; | |
823 | ||
fd3c7904 MB |
824 | uobj = uobj_get_write(uobj_get_type(mr), cmd.mr_handle, |
825 | file->ucontext); | |
826 | if (IS_ERR(uobj)) | |
827 | return PTR_ERR(uobj); | |
9ead190b | 828 | |
fd3c7904 | 829 | ret = uobj_remove_commit(uobj); |
bc38a6ab | 830 | |
fd3c7904 | 831 | return ret ?: in_len; |
bc38a6ab RD |
832 | } |
833 | ||
6b52a12b | 834 | ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file, |
057aec0d YH |
835 | struct ib_device *ib_dev, |
836 | const char __user *buf, int in_len, | |
837 | int out_len) | |
6b52a12b SM |
838 | { |
839 | struct ib_uverbs_alloc_mw cmd; | |
840 | struct ib_uverbs_alloc_mw_resp resp; | |
841 | struct ib_uobject *uobj; | |
842 | struct ib_pd *pd; | |
843 | struct ib_mw *mw; | |
b2a239df | 844 | struct ib_udata udata; |
6b52a12b SM |
845 | int ret; |
846 | ||
847 | if (out_len < sizeof(resp)) | |
848 | return -ENOSPC; | |
849 | ||
850 | if (copy_from_user(&cmd, buf, sizeof(cmd))) | |
851 | return -EFAULT; | |
852 | ||
fd3c7904 MB |
853 | uobj = uobj_alloc(uobj_get_type(mw), file->ucontext); |
854 | if (IS_ERR(uobj)) | |
855 | return PTR_ERR(uobj); | |
6b52a12b | 856 | |
fd3c7904 | 857 | pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext); |
6b52a12b SM |
858 | if (!pd) { |
859 | ret = -EINVAL; | |
860 | goto err_free; | |
861 | } | |
862 | ||
40a20339 AB |
863 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
864 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
b2a239df MB |
865 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
866 | out_len - sizeof(resp)); | |
867 | ||
868 | mw = pd->device->alloc_mw(pd, cmd.mw_type, &udata); | |
6b52a12b SM |
869 | if (IS_ERR(mw)) { |
870 | ret = PTR_ERR(mw); | |
871 | goto err_put; | |
872 | } | |
873 | ||
874 | mw->device = pd->device; | |
875 | mw->pd = pd; | |
876 | mw->uobject = uobj; | |
877 | atomic_inc(&pd->usecnt); | |
878 | ||
879 | uobj->object = mw; | |
6b52a12b SM |
880 | |
881 | memset(&resp, 0, sizeof(resp)); | |
882 | resp.rkey = mw->rkey; | |
883 | resp.mw_handle = uobj->id; | |
884 | ||
40a20339 | 885 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof(resp))) { |
6b52a12b SM |
886 | ret = -EFAULT; |
887 | goto err_copy; | |
888 | } | |
889 | ||
fd3c7904 MB |
890 | uobj_put_obj_read(pd); |
891 | uobj_alloc_commit(uobj); | |
6b52a12b SM |
892 | |
893 | return in_len; | |
894 | ||
895 | err_copy: | |
feb7c1e3 | 896 | uverbs_dealloc_mw(mw); |
6b52a12b | 897 | err_put: |
fd3c7904 | 898 | uobj_put_obj_read(pd); |
6b52a12b | 899 | err_free: |
fd3c7904 | 900 | uobj_alloc_abort(uobj); |
6b52a12b SM |
901 | return ret; |
902 | } | |
903 | ||
904 | ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file, | |
057aec0d YH |
905 | struct ib_device *ib_dev, |
906 | const char __user *buf, int in_len, | |
907 | int out_len) | |
6b52a12b SM |
908 | { |
909 | struct ib_uverbs_dealloc_mw cmd; | |
6b52a12b SM |
910 | struct ib_uobject *uobj; |
911 | int ret = -EINVAL; | |
912 | ||
913 | if (copy_from_user(&cmd, buf, sizeof(cmd))) | |
914 | return -EFAULT; | |
915 | ||
fd3c7904 MB |
916 | uobj = uobj_get_write(uobj_get_type(mw), cmd.mw_handle, |
917 | file->ucontext); | |
918 | if (IS_ERR(uobj)) | |
919 | return PTR_ERR(uobj); | |
6b52a12b | 920 | |
fd3c7904 MB |
921 | ret = uobj_remove_commit(uobj); |
922 | return ret ?: in_len; | |
6b52a12b SM |
923 | } |
924 | ||
6b73597e | 925 | ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file, |
057aec0d | 926 | struct ib_device *ib_dev, |
6b73597e RD |
927 | const char __user *buf, int in_len, |
928 | int out_len) | |
929 | { | |
930 | struct ib_uverbs_create_comp_channel cmd; | |
931 | struct ib_uverbs_create_comp_channel_resp resp; | |
1e7710f3 MB |
932 | struct ib_uobject *uobj; |
933 | struct ib_uverbs_completion_event_file *ev_file; | |
6b73597e RD |
934 | |
935 | if (out_len < sizeof resp) | |
936 | return -ENOSPC; | |
937 | ||
938 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
939 | return -EFAULT; | |
940 | ||
1e7710f3 MB |
941 | uobj = uobj_alloc(uobj_get_type(comp_channel), file->ucontext); |
942 | if (IS_ERR(uobj)) | |
943 | return PTR_ERR(uobj); | |
b1e4594b | 944 | |
1e7710f3 MB |
945 | resp.fd = uobj->id; |
946 | ||
947 | ev_file = container_of(uobj, struct ib_uverbs_completion_event_file, | |
948 | uobj_file.uobj); | |
db1b5ddd | 949 | ib_uverbs_init_event_queue(&ev_file->ev_queue); |
6b73597e | 950 | |
40a20339 | 951 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { |
1e7710f3 | 952 | uobj_alloc_abort(uobj); |
6b73597e RD |
953 | return -EFAULT; |
954 | } | |
955 | ||
1e7710f3 | 956 | uobj_alloc_commit(uobj); |
6b73597e RD |
957 | return in_len; |
958 | } | |
959 | ||
565197dd | 960 | static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file, |
057aec0d | 961 | struct ib_device *ib_dev, |
565197dd MB |
962 | struct ib_udata *ucore, |
963 | struct ib_udata *uhw, | |
964 | struct ib_uverbs_ex_create_cq *cmd, | |
965 | size_t cmd_sz, | |
966 | int (*cb)(struct ib_uverbs_file *file, | |
967 | struct ib_ucq_object *obj, | |
968 | struct ib_uverbs_ex_create_cq_resp *resp, | |
969 | struct ib_udata *udata, | |
970 | void *context), | |
971 | void *context) | |
bc38a6ab | 972 | { |
9ead190b | 973 | struct ib_ucq_object *obj; |
1e7710f3 | 974 | struct ib_uverbs_completion_event_file *ev_file = NULL; |
bc38a6ab RD |
975 | struct ib_cq *cq; |
976 | int ret; | |
565197dd | 977 | struct ib_uverbs_ex_create_cq_resp resp; |
bcf4c1ea | 978 | struct ib_cq_init_attr attr = {}; |
bc38a6ab | 979 | |
565197dd MB |
980 | if (cmd->comp_vector >= file->device->num_comp_vectors) |
981 | return ERR_PTR(-EINVAL); | |
bc38a6ab | 982 | |
fd3c7904 MB |
983 | obj = (struct ib_ucq_object *)uobj_alloc(uobj_get_type(cq), |
984 | file->ucontext); | |
985 | if (IS_ERR(obj)) | |
986 | return obj; | |
9ead190b | 987 | |
565197dd | 988 | if (cmd->comp_channel >= 0) { |
1e7710f3 MB |
989 | ev_file = ib_uverbs_lookup_comp_file(cmd->comp_channel, |
990 | file->ucontext); | |
991 | if (IS_ERR(ev_file)) { | |
992 | ret = PTR_ERR(ev_file); | |
ac4e7b35 JM |
993 | goto err; |
994 | } | |
995 | } | |
996 | ||
fd3c7904 | 997 | obj->uobject.user_handle = cmd->user_handle; |
9ead190b RD |
998 | obj->uverbs_file = file; |
999 | obj->comp_events_reported = 0; | |
1000 | obj->async_events_reported = 0; | |
1001 | INIT_LIST_HEAD(&obj->comp_list); | |
1002 | INIT_LIST_HEAD(&obj->async_list); | |
bc38a6ab | 1003 | |
565197dd MB |
1004 | attr.cqe = cmd->cqe; |
1005 | attr.comp_vector = cmd->comp_vector; | |
1006 | ||
1007 | if (cmd_sz > offsetof(typeof(*cmd), flags) + sizeof(cmd->flags)) | |
1008 | attr.flags = cmd->flags; | |
1009 | ||
fd3c7904 | 1010 | cq = ib_dev->create_cq(ib_dev, &attr, file->ucontext, uhw); |
bc38a6ab RD |
1011 | if (IS_ERR(cq)) { |
1012 | ret = PTR_ERR(cq); | |
9ead190b | 1013 | goto err_file; |
bc38a6ab RD |
1014 | } |
1015 | ||
057aec0d | 1016 | cq->device = ib_dev; |
9ead190b | 1017 | cq->uobject = &obj->uobject; |
bc38a6ab RD |
1018 | cq->comp_handler = ib_uverbs_comp_handler; |
1019 | cq->event_handler = ib_uverbs_cq_event_handler; | |
699a2d5b | 1020 | cq->cq_context = ev_file ? &ev_file->ev_queue : NULL; |
bc38a6ab RD |
1021 | atomic_set(&cq->usecnt, 0); |
1022 | ||
9ead190b | 1023 | obj->uobject.object = cq; |
bc38a6ab | 1024 | memset(&resp, 0, sizeof resp); |
565197dd MB |
1025 | resp.base.cq_handle = obj->uobject.id; |
1026 | resp.base.cqe = cq->cqe; | |
bc38a6ab | 1027 | |
565197dd MB |
1028 | resp.response_length = offsetof(typeof(resp), response_length) + |
1029 | sizeof(resp.response_length); | |
1030 | ||
1031 | ret = cb(file, obj, &resp, ucore, context); | |
1032 | if (ret) | |
1033 | goto err_cb; | |
bc38a6ab | 1034 | |
fd3c7904 | 1035 | uobj_alloc_commit(&obj->uobject); |
bc38a6ab | 1036 | |
565197dd | 1037 | return obj; |
eb9d3cd5 | 1038 | |
565197dd | 1039 | err_cb: |
bc38a6ab RD |
1040 | ib_destroy_cq(cq); |
1041 | ||
9ead190b | 1042 | err_file: |
ac4e7b35 | 1043 | if (ev_file) |
9ead190b RD |
1044 | ib_uverbs_release_ucq(file, ev_file, obj); |
1045 | ||
1046 | err: | |
fd3c7904 | 1047 | uobj_alloc_abort(&obj->uobject); |
565197dd MB |
1048 | |
1049 | return ERR_PTR(ret); | |
1050 | } | |
1051 | ||
1052 | static int ib_uverbs_create_cq_cb(struct ib_uverbs_file *file, | |
1053 | struct ib_ucq_object *obj, | |
1054 | struct ib_uverbs_ex_create_cq_resp *resp, | |
1055 | struct ib_udata *ucore, void *context) | |
1056 | { | |
1057 | if (ib_copy_to_udata(ucore, &resp->base, sizeof(resp->base))) | |
1058 | return -EFAULT; | |
1059 | ||
1060 | return 0; | |
1061 | } | |
1062 | ||
1063 | ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file, | |
057aec0d | 1064 | struct ib_device *ib_dev, |
565197dd MB |
1065 | const char __user *buf, int in_len, |
1066 | int out_len) | |
1067 | { | |
1068 | struct ib_uverbs_create_cq cmd; | |
1069 | struct ib_uverbs_ex_create_cq cmd_ex; | |
1070 | struct ib_uverbs_create_cq_resp resp; | |
1071 | struct ib_udata ucore; | |
1072 | struct ib_udata uhw; | |
1073 | struct ib_ucq_object *obj; | |
1074 | ||
1075 | if (out_len < sizeof(resp)) | |
1076 | return -ENOSPC; | |
1077 | ||
1078 | if (copy_from_user(&cmd, buf, sizeof(cmd))) | |
1079 | return -EFAULT; | |
1080 | ||
40a20339 AB |
1081 | ib_uverbs_init_udata(&ucore, buf, u64_to_user_ptr(cmd.response), |
1082 | sizeof(cmd), sizeof(resp)); | |
565197dd | 1083 | |
40a20339 AB |
1084 | ib_uverbs_init_udata(&uhw, buf + sizeof(cmd), |
1085 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
1086 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
1087 | out_len - sizeof(resp)); | |
565197dd MB |
1088 | |
1089 | memset(&cmd_ex, 0, sizeof(cmd_ex)); | |
1090 | cmd_ex.user_handle = cmd.user_handle; | |
1091 | cmd_ex.cqe = cmd.cqe; | |
1092 | cmd_ex.comp_vector = cmd.comp_vector; | |
1093 | cmd_ex.comp_channel = cmd.comp_channel; | |
1094 | ||
057aec0d | 1095 | obj = create_cq(file, ib_dev, &ucore, &uhw, &cmd_ex, |
565197dd MB |
1096 | offsetof(typeof(cmd_ex), comp_channel) + |
1097 | sizeof(cmd.comp_channel), ib_uverbs_create_cq_cb, | |
1098 | NULL); | |
1099 | ||
1100 | if (IS_ERR(obj)) | |
1101 | return PTR_ERR(obj); | |
1102 | ||
1103 | return in_len; | |
1104 | } | |
1105 | ||
1106 | static int ib_uverbs_ex_create_cq_cb(struct ib_uverbs_file *file, | |
1107 | struct ib_ucq_object *obj, | |
1108 | struct ib_uverbs_ex_create_cq_resp *resp, | |
1109 | struct ib_udata *ucore, void *context) | |
1110 | { | |
1111 | if (ib_copy_to_udata(ucore, resp, resp->response_length)) | |
1112 | return -EFAULT; | |
1113 | ||
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | int ib_uverbs_ex_create_cq(struct ib_uverbs_file *file, | |
057aec0d | 1118 | struct ib_device *ib_dev, |
565197dd MB |
1119 | struct ib_udata *ucore, |
1120 | struct ib_udata *uhw) | |
1121 | { | |
1122 | struct ib_uverbs_ex_create_cq_resp resp; | |
1123 | struct ib_uverbs_ex_create_cq cmd; | |
1124 | struct ib_ucq_object *obj; | |
1125 | int err; | |
1126 | ||
1127 | if (ucore->inlen < sizeof(cmd)) | |
1128 | return -EINVAL; | |
1129 | ||
1130 | err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); | |
1131 | if (err) | |
1132 | return err; | |
1133 | ||
1134 | if (cmd.comp_mask) | |
1135 | return -EINVAL; | |
1136 | ||
1137 | if (cmd.reserved) | |
1138 | return -EINVAL; | |
1139 | ||
1140 | if (ucore->outlen < (offsetof(typeof(resp), response_length) + | |
1141 | sizeof(resp.response_length))) | |
1142 | return -ENOSPC; | |
1143 | ||
057aec0d | 1144 | obj = create_cq(file, ib_dev, ucore, uhw, &cmd, |
565197dd MB |
1145 | min(ucore->inlen, sizeof(cmd)), |
1146 | ib_uverbs_ex_create_cq_cb, NULL); | |
1147 | ||
1148 | if (IS_ERR(obj)) | |
1149 | return PTR_ERR(obj); | |
1150 | ||
1151 | return 0; | |
bc38a6ab RD |
1152 | } |
1153 | ||
33b9b3ee | 1154 | ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file, |
057aec0d | 1155 | struct ib_device *ib_dev, |
33b9b3ee RD |
1156 | const char __user *buf, int in_len, |
1157 | int out_len) | |
1158 | { | |
1159 | struct ib_uverbs_resize_cq cmd; | |
f7a6cb7b | 1160 | struct ib_uverbs_resize_cq_resp resp = {}; |
33b9b3ee RD |
1161 | struct ib_udata udata; |
1162 | struct ib_cq *cq; | |
1163 | int ret = -EINVAL; | |
1164 | ||
1165 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
1166 | return -EFAULT; | |
1167 | ||
40a20339 AB |
1168 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
1169 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
1170 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
1171 | out_len - sizeof(resp)); | |
33b9b3ee | 1172 | |
fd3c7904 | 1173 | cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext); |
9ead190b RD |
1174 | if (!cq) |
1175 | return -EINVAL; | |
33b9b3ee RD |
1176 | |
1177 | ret = cq->device->resize_cq(cq, cmd.cqe, &udata); | |
1178 | if (ret) | |
1179 | goto out; | |
1180 | ||
33b9b3ee RD |
1181 | resp.cqe = cq->cqe; |
1182 | ||
40a20339 | 1183 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp.cqe)) |
33b9b3ee RD |
1184 | ret = -EFAULT; |
1185 | ||
1186 | out: | |
fd3c7904 | 1187 | uobj_put_obj_read(cq); |
33b9b3ee RD |
1188 | |
1189 | return ret ? ret : in_len; | |
1190 | } | |
1191 | ||
7db20ecd HD |
1192 | static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest, |
1193 | struct ib_wc *wc) | |
7182afea DC |
1194 | { |
1195 | struct ib_uverbs_wc tmp; | |
1196 | ||
1197 | tmp.wr_id = wc->wr_id; | |
1198 | tmp.status = wc->status; | |
1199 | tmp.opcode = wc->opcode; | |
1200 | tmp.vendor_err = wc->vendor_err; | |
1201 | tmp.byte_len = wc->byte_len; | |
1202 | tmp.ex.imm_data = (__u32 __force) wc->ex.imm_data; | |
1203 | tmp.qp_num = wc->qp->qp_num; | |
1204 | tmp.src_qp = wc->src_qp; | |
1205 | tmp.wc_flags = wc->wc_flags; | |
1206 | tmp.pkey_index = wc->pkey_index; | |
7db20ecd | 1207 | if (rdma_cap_opa_ah(ib_dev, wc->port_num)) |
62ede777 | 1208 | tmp.slid = OPA_TO_IB_UCAST_LID(wc->slid); |
7db20ecd | 1209 | else |
62ede777 | 1210 | tmp.slid = ib_lid_cpu16(wc->slid); |
7182afea DC |
1211 | tmp.sl = wc->sl; |
1212 | tmp.dlid_path_bits = wc->dlid_path_bits; | |
1213 | tmp.port_num = wc->port_num; | |
1214 | tmp.reserved = 0; | |
1215 | ||
1216 | if (copy_to_user(dest, &tmp, sizeof tmp)) | |
1217 | return -EFAULT; | |
1218 | ||
1219 | return 0; | |
1220 | } | |
1221 | ||
67cdb40c | 1222 | ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, |
057aec0d | 1223 | struct ib_device *ib_dev, |
67cdb40c RD |
1224 | const char __user *buf, int in_len, |
1225 | int out_len) | |
1226 | { | |
1227 | struct ib_uverbs_poll_cq cmd; | |
7182afea DC |
1228 | struct ib_uverbs_poll_cq_resp resp; |
1229 | u8 __user *header_ptr; | |
1230 | u8 __user *data_ptr; | |
67cdb40c | 1231 | struct ib_cq *cq; |
7182afea DC |
1232 | struct ib_wc wc; |
1233 | int ret; | |
67cdb40c RD |
1234 | |
1235 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
1236 | return -EFAULT; | |
1237 | ||
fd3c7904 | 1238 | cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext); |
7182afea DC |
1239 | if (!cq) |
1240 | return -EINVAL; | |
67cdb40c | 1241 | |
7182afea | 1242 | /* we copy a struct ib_uverbs_poll_cq_resp to user space */ |
40a20339 | 1243 | header_ptr = u64_to_user_ptr(cmd.response); |
7182afea | 1244 | data_ptr = header_ptr + sizeof resp; |
9ead190b | 1245 | |
7182afea DC |
1246 | memset(&resp, 0, sizeof resp); |
1247 | while (resp.count < cmd.ne) { | |
1248 | ret = ib_poll_cq(cq, 1, &wc); | |
1249 | if (ret < 0) | |
1250 | goto out_put; | |
1251 | if (!ret) | |
1252 | break; | |
1253 | ||
7db20ecd | 1254 | ret = copy_wc_to_user(ib_dev, data_ptr, &wc); |
7182afea DC |
1255 | if (ret) |
1256 | goto out_put; | |
1257 | ||
1258 | data_ptr += sizeof(struct ib_uverbs_wc); | |
1259 | ++resp.count; | |
67cdb40c RD |
1260 | } |
1261 | ||
7182afea | 1262 | if (copy_to_user(header_ptr, &resp, sizeof resp)) { |
67cdb40c | 1263 | ret = -EFAULT; |
7182afea DC |
1264 | goto out_put; |
1265 | } | |
67cdb40c | 1266 | |
7182afea | 1267 | ret = in_len; |
67cdb40c | 1268 | |
7182afea | 1269 | out_put: |
fd3c7904 | 1270 | uobj_put_obj_read(cq); |
7182afea | 1271 | return ret; |
67cdb40c RD |
1272 | } |
1273 | ||
1274 | ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file, | |
057aec0d | 1275 | struct ib_device *ib_dev, |
67cdb40c RD |
1276 | const char __user *buf, int in_len, |
1277 | int out_len) | |
1278 | { | |
1279 | struct ib_uverbs_req_notify_cq cmd; | |
1280 | struct ib_cq *cq; | |
67cdb40c RD |
1281 | |
1282 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
1283 | return -EFAULT; | |
1284 | ||
fd3c7904 | 1285 | cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext); |
ab108676 | 1286 | if (!cq) |
9ead190b | 1287 | return -EINVAL; |
67cdb40c | 1288 | |
9ead190b RD |
1289 | ib_req_notify_cq(cq, cmd.solicited_only ? |
1290 | IB_CQ_SOLICITED : IB_CQ_NEXT_COMP); | |
1291 | ||
fd3c7904 | 1292 | uobj_put_obj_read(cq); |
9ead190b RD |
1293 | |
1294 | return in_len; | |
67cdb40c RD |
1295 | } |
1296 | ||
bc38a6ab | 1297 | ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, |
057aec0d | 1298 | struct ib_device *ib_dev, |
bc38a6ab RD |
1299 | const char __user *buf, int in_len, |
1300 | int out_len) | |
1301 | { | |
63aaf647 RD |
1302 | struct ib_uverbs_destroy_cq cmd; |
1303 | struct ib_uverbs_destroy_cq_resp resp; | |
9ead190b | 1304 | struct ib_uobject *uobj; |
63aaf647 | 1305 | struct ib_cq *cq; |
9ead190b | 1306 | struct ib_ucq_object *obj; |
63aaf647 | 1307 | int ret = -EINVAL; |
bc38a6ab RD |
1308 | |
1309 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
1310 | return -EFAULT; | |
1311 | ||
fd3c7904 MB |
1312 | uobj = uobj_get_write(uobj_get_type(cq), cmd.cq_handle, |
1313 | file->ucontext); | |
1314 | if (IS_ERR(uobj)) | |
1315 | return PTR_ERR(uobj); | |
1316 | ||
1317 | /* | |
1318 | * Make sure we don't free the memory in remove_commit as we still | |
1319 | * needs the uobject memory to create the response. | |
1320 | */ | |
1321 | uverbs_uobject_get(uobj); | |
9ead190b | 1322 | cq = uobj->object; |
9ead190b | 1323 | obj = container_of(cq->uobject, struct ib_ucq_object, uobject); |
bc38a6ab | 1324 | |
fd3c7904 | 1325 | memset(&resp, 0, sizeof(resp)); |
bc38a6ab | 1326 | |
fd3c7904 MB |
1327 | ret = uobj_remove_commit(uobj); |
1328 | if (ret) { | |
1329 | uverbs_uobject_put(uobj); | |
9ead190b | 1330 | return ret; |
fd3c7904 | 1331 | } |
bc38a6ab | 1332 | |
9ead190b RD |
1333 | resp.comp_events_reported = obj->comp_events_reported; |
1334 | resp.async_events_reported = obj->async_events_reported; | |
63aaf647 | 1335 | |
fd3c7904 | 1336 | uverbs_uobject_put(uobj); |
40a20339 | 1337 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
9ead190b | 1338 | return -EFAULT; |
bc38a6ab | 1339 | |
9ead190b | 1340 | return in_len; |
bc38a6ab RD |
1341 | } |
1342 | ||
6d8a7497 EBE |
1343 | static int create_qp(struct ib_uverbs_file *file, |
1344 | struct ib_udata *ucore, | |
1345 | struct ib_udata *uhw, | |
1346 | struct ib_uverbs_ex_create_qp *cmd, | |
1347 | size_t cmd_sz, | |
1348 | int (*cb)(struct ib_uverbs_file *file, | |
1349 | struct ib_uverbs_ex_create_qp_resp *resp, | |
1350 | struct ib_udata *udata), | |
1351 | void *context) | |
bc38a6ab | 1352 | { |
6d8a7497 EBE |
1353 | struct ib_uqp_object *obj; |
1354 | struct ib_device *device; | |
1355 | struct ib_pd *pd = NULL; | |
1356 | struct ib_xrcd *xrcd = NULL; | |
fd3c7904 | 1357 | struct ib_uobject *xrcd_uobj = ERR_PTR(-ENOENT); |
6d8a7497 EBE |
1358 | struct ib_cq *scq = NULL, *rcq = NULL; |
1359 | struct ib_srq *srq = NULL; | |
1360 | struct ib_qp *qp; | |
1361 | char *buf; | |
c70285f8 | 1362 | struct ib_qp_init_attr attr = {}; |
6d8a7497 EBE |
1363 | struct ib_uverbs_ex_create_qp_resp resp; |
1364 | int ret; | |
c70285f8 YH |
1365 | struct ib_rwq_ind_table *ind_tbl = NULL; |
1366 | bool has_sq = true; | |
6d8a7497 EBE |
1367 | |
1368 | if (cmd->qp_type == IB_QPT_RAW_PACKET && !capable(CAP_NET_RAW)) | |
c938a616 OG |
1369 | return -EPERM; |
1370 | ||
fd3c7904 MB |
1371 | obj = (struct ib_uqp_object *)uobj_alloc(uobj_get_type(qp), |
1372 | file->ucontext); | |
1373 | if (IS_ERR(obj)) | |
1374 | return PTR_ERR(obj); | |
1375 | obj->uxrcd = NULL; | |
1376 | obj->uevent.uobject.user_handle = cmd->user_handle; | |
f48b7269 | 1377 | mutex_init(&obj->mcast_lock); |
bc38a6ab | 1378 | |
c70285f8 YH |
1379 | if (cmd_sz >= offsetof(typeof(*cmd), rwq_ind_tbl_handle) + |
1380 | sizeof(cmd->rwq_ind_tbl_handle) && | |
1381 | (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE)) { | |
fd3c7904 MB |
1382 | ind_tbl = uobj_get_obj_read(rwq_ind_table, |
1383 | cmd->rwq_ind_tbl_handle, | |
1384 | file->ucontext); | |
c70285f8 YH |
1385 | if (!ind_tbl) { |
1386 | ret = -EINVAL; | |
1387 | goto err_put; | |
1388 | } | |
1389 | ||
1390 | attr.rwq_ind_tbl = ind_tbl; | |
1391 | } | |
1392 | ||
2dee0e54 YH |
1393 | if (cmd_sz > sizeof(*cmd) && |
1394 | !ib_is_udata_cleared(ucore, sizeof(*cmd), | |
1395 | cmd_sz - sizeof(*cmd))) { | |
c70285f8 YH |
1396 | ret = -EOPNOTSUPP; |
1397 | goto err_put; | |
1398 | } | |
1399 | ||
1400 | if (ind_tbl && (cmd->max_recv_wr || cmd->max_recv_sge || cmd->is_srq)) { | |
1401 | ret = -EINVAL; | |
1402 | goto err_put; | |
1403 | } | |
1404 | ||
1405 | if (ind_tbl && !cmd->max_send_wr) | |
1406 | has_sq = false; | |
bc38a6ab | 1407 | |
6d8a7497 | 1408 | if (cmd->qp_type == IB_QPT_XRC_TGT) { |
fd3c7904 MB |
1409 | xrcd_uobj = uobj_get_read(uobj_get_type(xrcd), cmd->pd_handle, |
1410 | file->ucontext); | |
1411 | ||
1412 | if (IS_ERR(xrcd_uobj)) { | |
1413 | ret = -EINVAL; | |
1414 | goto err_put; | |
1415 | } | |
1416 | ||
1417 | xrcd = (struct ib_xrcd *)xrcd_uobj->object; | |
b93f3c18 SH |
1418 | if (!xrcd) { |
1419 | ret = -EINVAL; | |
1420 | goto err_put; | |
1421 | } | |
1422 | device = xrcd->device; | |
9977f4f6 | 1423 | } else { |
6d8a7497 EBE |
1424 | if (cmd->qp_type == IB_QPT_XRC_INI) { |
1425 | cmd->max_recv_wr = 0; | |
1426 | cmd->max_recv_sge = 0; | |
b93f3c18 | 1427 | } else { |
6d8a7497 | 1428 | if (cmd->is_srq) { |
fd3c7904 MB |
1429 | srq = uobj_get_obj_read(srq, cmd->srq_handle, |
1430 | file->ucontext); | |
38eb44fa | 1431 | if (!srq || srq->srq_type == IB_SRQT_XRC) { |
b93f3c18 SH |
1432 | ret = -EINVAL; |
1433 | goto err_put; | |
1434 | } | |
1435 | } | |
5909ce54 | 1436 | |
c70285f8 YH |
1437 | if (!ind_tbl) { |
1438 | if (cmd->recv_cq_handle != cmd->send_cq_handle) { | |
fd3c7904 MB |
1439 | rcq = uobj_get_obj_read(cq, cmd->recv_cq_handle, |
1440 | file->ucontext); | |
c70285f8 YH |
1441 | if (!rcq) { |
1442 | ret = -EINVAL; | |
1443 | goto err_put; | |
1444 | } | |
5909ce54 | 1445 | } |
9977f4f6 SH |
1446 | } |
1447 | } | |
5909ce54 | 1448 | |
c70285f8 | 1449 | if (has_sq) |
fd3c7904 MB |
1450 | scq = uobj_get_obj_read(cq, cmd->send_cq_handle, |
1451 | file->ucontext); | |
c70285f8 YH |
1452 | if (!ind_tbl) |
1453 | rcq = rcq ?: scq; | |
fd3c7904 | 1454 | pd = uobj_get_obj_read(pd, cmd->pd_handle, file->ucontext); |
c70285f8 | 1455 | if (!pd || (!scq && has_sq)) { |
5909ce54 RD |
1456 | ret = -EINVAL; |
1457 | goto err_put; | |
1458 | } | |
1459 | ||
b93f3c18 | 1460 | device = pd->device; |
9977f4f6 SH |
1461 | } |
1462 | ||
bc38a6ab RD |
1463 | attr.event_handler = ib_uverbs_qp_event_handler; |
1464 | attr.qp_context = file; | |
1465 | attr.send_cq = scq; | |
1466 | attr.recv_cq = rcq; | |
f520ba5a | 1467 | attr.srq = srq; |
b93f3c18 | 1468 | attr.xrcd = xrcd; |
6d8a7497 EBE |
1469 | attr.sq_sig_type = cmd->sq_sig_all ? IB_SIGNAL_ALL_WR : |
1470 | IB_SIGNAL_REQ_WR; | |
1471 | attr.qp_type = cmd->qp_type; | |
b846f25a | 1472 | attr.create_flags = 0; |
bc38a6ab | 1473 | |
6d8a7497 EBE |
1474 | attr.cap.max_send_wr = cmd->max_send_wr; |
1475 | attr.cap.max_recv_wr = cmd->max_recv_wr; | |
1476 | attr.cap.max_send_sge = cmd->max_send_sge; | |
1477 | attr.cap.max_recv_sge = cmd->max_recv_sge; | |
1478 | attr.cap.max_inline_data = cmd->max_inline_data; | |
bc38a6ab | 1479 | |
9ead190b RD |
1480 | obj->uevent.events_reported = 0; |
1481 | INIT_LIST_HEAD(&obj->uevent.event_list); | |
1482 | INIT_LIST_HEAD(&obj->mcast_list); | |
bc38a6ab | 1483 | |
6d8a7497 EBE |
1484 | if (cmd_sz >= offsetof(typeof(*cmd), create_flags) + |
1485 | sizeof(cmd->create_flags)) | |
1486 | attr.create_flags = cmd->create_flags; | |
1487 | ||
8a06ce59 LR |
1488 | if (attr.create_flags & ~(IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK | |
1489 | IB_QP_CREATE_CROSS_CHANNEL | | |
1490 | IB_QP_CREATE_MANAGED_SEND | | |
b531b909 | 1491 | IB_QP_CREATE_MANAGED_RECV | |
9e1b161f | 1492 | IB_QP_CREATE_SCATTER_FCS | |
2dee0e54 | 1493 | IB_QP_CREATE_CVLAN_STRIPPING | |
e1d2e887 NO |
1494 | IB_QP_CREATE_SOURCE_QPN | |
1495 | IB_QP_CREATE_PCI_WRITE_END_PADDING)) { | |
6d8a7497 EBE |
1496 | ret = -EINVAL; |
1497 | goto err_put; | |
1498 | } | |
1499 | ||
2dee0e54 YH |
1500 | if (attr.create_flags & IB_QP_CREATE_SOURCE_QPN) { |
1501 | if (!capable(CAP_NET_RAW)) { | |
1502 | ret = -EPERM; | |
1503 | goto err_put; | |
1504 | } | |
1505 | ||
1506 | attr.source_qpn = cmd->source_qpn; | |
1507 | } | |
1508 | ||
6d8a7497 EBE |
1509 | buf = (void *)cmd + sizeof(*cmd); |
1510 | if (cmd_sz > sizeof(*cmd)) | |
1511 | if (!(buf[0] == 0 && !memcmp(buf, buf + 1, | |
1512 | cmd_sz - sizeof(*cmd) - 1))) { | |
1513 | ret = -EINVAL; | |
1514 | goto err_put; | |
1515 | } | |
1516 | ||
1517 | if (cmd->qp_type == IB_QPT_XRC_TGT) | |
b93f3c18 SH |
1518 | qp = ib_create_qp(pd, &attr); |
1519 | else | |
6d8a7497 | 1520 | qp = device->create_qp(pd, &attr, uhw); |
b93f3c18 | 1521 | |
bc38a6ab RD |
1522 | if (IS_ERR(qp)) { |
1523 | ret = PTR_ERR(qp); | |
fd3c7904 | 1524 | goto err_put; |
bc38a6ab RD |
1525 | } |
1526 | ||
6d8a7497 | 1527 | if (cmd->qp_type != IB_QPT_XRC_TGT) { |
d291f1a6 DJ |
1528 | ret = ib_create_qp_security(qp, device); |
1529 | if (ret) | |
1530 | goto err_cb; | |
1531 | ||
0e0ec7e0 | 1532 | qp->real_qp = qp; |
b93f3c18 SH |
1533 | qp->device = device; |
1534 | qp->pd = pd; | |
1535 | qp->send_cq = attr.send_cq; | |
1536 | qp->recv_cq = attr.recv_cq; | |
1537 | qp->srq = attr.srq; | |
c70285f8 | 1538 | qp->rwq_ind_tbl = ind_tbl; |
b93f3c18 SH |
1539 | qp->event_handler = attr.event_handler; |
1540 | qp->qp_context = attr.qp_context; | |
1541 | qp->qp_type = attr.qp_type; | |
e47e321a | 1542 | atomic_set(&qp->usecnt, 0); |
b93f3c18 | 1543 | atomic_inc(&pd->usecnt); |
498ca3c8 | 1544 | qp->port = 0; |
c70285f8 YH |
1545 | if (attr.send_cq) |
1546 | atomic_inc(&attr.send_cq->usecnt); | |
b93f3c18 SH |
1547 | if (attr.recv_cq) |
1548 | atomic_inc(&attr.recv_cq->usecnt); | |
1549 | if (attr.srq) | |
1550 | atomic_inc(&attr.srq->usecnt); | |
c70285f8 YH |
1551 | if (ind_tbl) |
1552 | atomic_inc(&ind_tbl->usecnt); | |
b93f3c18 SH |
1553 | } |
1554 | qp->uobject = &obj->uevent.uobject; | |
bc38a6ab | 1555 | |
9ead190b | 1556 | obj->uevent.uobject.object = qp; |
bc38a6ab | 1557 | |
9ead190b | 1558 | memset(&resp, 0, sizeof resp); |
6d8a7497 EBE |
1559 | resp.base.qpn = qp->qp_num; |
1560 | resp.base.qp_handle = obj->uevent.uobject.id; | |
1561 | resp.base.max_recv_sge = attr.cap.max_recv_sge; | |
1562 | resp.base.max_send_sge = attr.cap.max_send_sge; | |
1563 | resp.base.max_recv_wr = attr.cap.max_recv_wr; | |
1564 | resp.base.max_send_wr = attr.cap.max_send_wr; | |
1565 | resp.base.max_inline_data = attr.cap.max_inline_data; | |
bc38a6ab | 1566 | |
6d8a7497 EBE |
1567 | resp.response_length = offsetof(typeof(resp), response_length) + |
1568 | sizeof(resp.response_length); | |
1569 | ||
1570 | ret = cb(file, &resp, ucore); | |
1571 | if (ret) | |
1572 | goto err_cb; | |
bc38a6ab | 1573 | |
846be90d YH |
1574 | if (xrcd) { |
1575 | obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, | |
1576 | uobject); | |
1577 | atomic_inc(&obj->uxrcd->refcnt); | |
fd3c7904 | 1578 | uobj_put_read(xrcd_uobj); |
846be90d YH |
1579 | } |
1580 | ||
b93f3c18 | 1581 | if (pd) |
fd3c7904 | 1582 | uobj_put_obj_read(pd); |
b93f3c18 | 1583 | if (scq) |
fd3c7904 | 1584 | uobj_put_obj_read(scq); |
9977f4f6 | 1585 | if (rcq && rcq != scq) |
fd3c7904 | 1586 | uobj_put_obj_read(rcq); |
9ead190b | 1587 | if (srq) |
fd3c7904 | 1588 | uobj_put_obj_read(srq); |
c70285f8 | 1589 | if (ind_tbl) |
fd3c7904 | 1590 | uobj_put_obj_read(ind_tbl); |
9ead190b | 1591 | |
fd3c7904 | 1592 | uobj_alloc_commit(&obj->uevent.uobject); |
bc38a6ab | 1593 | |
6d8a7497 EBE |
1594 | return 0; |
1595 | err_cb: | |
bc38a6ab RD |
1596 | ib_destroy_qp(qp); |
1597 | ||
9ead190b | 1598 | err_put: |
fd3c7904 MB |
1599 | if (!IS_ERR(xrcd_uobj)) |
1600 | uobj_put_read(xrcd_uobj); | |
9ead190b | 1601 | if (pd) |
fd3c7904 | 1602 | uobj_put_obj_read(pd); |
9ead190b | 1603 | if (scq) |
fd3c7904 | 1604 | uobj_put_obj_read(scq); |
43db2bc0 | 1605 | if (rcq && rcq != scq) |
fd3c7904 | 1606 | uobj_put_obj_read(rcq); |
9ead190b | 1607 | if (srq) |
fd3c7904 | 1608 | uobj_put_obj_read(srq); |
c70285f8 | 1609 | if (ind_tbl) |
fd3c7904 | 1610 | uobj_put_obj_read(ind_tbl); |
9ead190b | 1611 | |
fd3c7904 | 1612 | uobj_alloc_abort(&obj->uevent.uobject); |
bc38a6ab RD |
1613 | return ret; |
1614 | } | |
1615 | ||
6d8a7497 EBE |
1616 | static int ib_uverbs_create_qp_cb(struct ib_uverbs_file *file, |
1617 | struct ib_uverbs_ex_create_qp_resp *resp, | |
1618 | struct ib_udata *ucore) | |
1619 | { | |
1620 | if (ib_copy_to_udata(ucore, &resp->base, sizeof(resp->base))) | |
1621 | return -EFAULT; | |
1622 | ||
1623 | return 0; | |
1624 | } | |
1625 | ||
1626 | ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file, | |
1627 | struct ib_device *ib_dev, | |
1628 | const char __user *buf, int in_len, | |
1629 | int out_len) | |
1630 | { | |
1631 | struct ib_uverbs_create_qp cmd; | |
1632 | struct ib_uverbs_ex_create_qp cmd_ex; | |
1633 | struct ib_udata ucore; | |
1634 | struct ib_udata uhw; | |
1635 | ssize_t resp_size = sizeof(struct ib_uverbs_create_qp_resp); | |
1636 | int err; | |
1637 | ||
1638 | if (out_len < resp_size) | |
1639 | return -ENOSPC; | |
1640 | ||
1641 | if (copy_from_user(&cmd, buf, sizeof(cmd))) | |
1642 | return -EFAULT; | |
1643 | ||
40a20339 AB |
1644 | ib_uverbs_init_udata(&ucore, buf, u64_to_user_ptr(cmd.response), |
1645 | sizeof(cmd), resp_size); | |
1646 | ib_uverbs_init_udata(&uhw, buf + sizeof(cmd), | |
1647 | u64_to_user_ptr(cmd.response) + resp_size, | |
3d943c9d MD |
1648 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
1649 | out_len - resp_size); | |
6d8a7497 EBE |
1650 | |
1651 | memset(&cmd_ex, 0, sizeof(cmd_ex)); | |
1652 | cmd_ex.user_handle = cmd.user_handle; | |
1653 | cmd_ex.pd_handle = cmd.pd_handle; | |
1654 | cmd_ex.send_cq_handle = cmd.send_cq_handle; | |
1655 | cmd_ex.recv_cq_handle = cmd.recv_cq_handle; | |
1656 | cmd_ex.srq_handle = cmd.srq_handle; | |
1657 | cmd_ex.max_send_wr = cmd.max_send_wr; | |
1658 | cmd_ex.max_recv_wr = cmd.max_recv_wr; | |
1659 | cmd_ex.max_send_sge = cmd.max_send_sge; | |
1660 | cmd_ex.max_recv_sge = cmd.max_recv_sge; | |
1661 | cmd_ex.max_inline_data = cmd.max_inline_data; | |
1662 | cmd_ex.sq_sig_all = cmd.sq_sig_all; | |
1663 | cmd_ex.qp_type = cmd.qp_type; | |
1664 | cmd_ex.is_srq = cmd.is_srq; | |
1665 | ||
1666 | err = create_qp(file, &ucore, &uhw, &cmd_ex, | |
1667 | offsetof(typeof(cmd_ex), is_srq) + | |
1668 | sizeof(cmd.is_srq), ib_uverbs_create_qp_cb, | |
1669 | NULL); | |
1670 | ||
1671 | if (err) | |
1672 | return err; | |
1673 | ||
1674 | return in_len; | |
1675 | } | |
1676 | ||
1677 | static int ib_uverbs_ex_create_qp_cb(struct ib_uverbs_file *file, | |
1678 | struct ib_uverbs_ex_create_qp_resp *resp, | |
1679 | struct ib_udata *ucore) | |
1680 | { | |
1681 | if (ib_copy_to_udata(ucore, resp, resp->response_length)) | |
1682 | return -EFAULT; | |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | ||
1687 | int ib_uverbs_ex_create_qp(struct ib_uverbs_file *file, | |
1688 | struct ib_device *ib_dev, | |
1689 | struct ib_udata *ucore, | |
1690 | struct ib_udata *uhw) | |
1691 | { | |
1692 | struct ib_uverbs_ex_create_qp_resp resp; | |
1693 | struct ib_uverbs_ex_create_qp cmd = {0}; | |
1694 | int err; | |
1695 | ||
1696 | if (ucore->inlen < (offsetof(typeof(cmd), comp_mask) + | |
1697 | sizeof(cmd.comp_mask))) | |
1698 | return -EINVAL; | |
1699 | ||
1700 | err = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); | |
1701 | if (err) | |
1702 | return err; | |
1703 | ||
c70285f8 | 1704 | if (cmd.comp_mask & ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK) |
6d8a7497 EBE |
1705 | return -EINVAL; |
1706 | ||
1707 | if (cmd.reserved) | |
1708 | return -EINVAL; | |
1709 | ||
1710 | if (ucore->outlen < (offsetof(typeof(resp), response_length) + | |
1711 | sizeof(resp.response_length))) | |
1712 | return -ENOSPC; | |
1713 | ||
1714 | err = create_qp(file, ucore, uhw, &cmd, | |
1715 | min(ucore->inlen, sizeof(cmd)), | |
1716 | ib_uverbs_ex_create_qp_cb, NULL); | |
1717 | ||
1718 | if (err) | |
1719 | return err; | |
1720 | ||
1721 | return 0; | |
1722 | } | |
1723 | ||
42849b26 | 1724 | ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file, |
057aec0d | 1725 | struct ib_device *ib_dev, |
42849b26 SH |
1726 | const char __user *buf, int in_len, int out_len) |
1727 | { | |
1728 | struct ib_uverbs_open_qp cmd; | |
1729 | struct ib_uverbs_create_qp_resp resp; | |
1730 | struct ib_udata udata; | |
1731 | struct ib_uqp_object *obj; | |
1732 | struct ib_xrcd *xrcd; | |
1733 | struct ib_uobject *uninitialized_var(xrcd_uobj); | |
1734 | struct ib_qp *qp; | |
1735 | struct ib_qp_open_attr attr; | |
1736 | int ret; | |
1737 | ||
1738 | if (out_len < sizeof resp) | |
1739 | return -ENOSPC; | |
1740 | ||
1741 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
1742 | return -EFAULT; | |
1743 | ||
40a20339 AB |
1744 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
1745 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
1746 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
1747 | out_len - sizeof(resp)); | |
42849b26 | 1748 | |
fd3c7904 MB |
1749 | obj = (struct ib_uqp_object *)uobj_alloc(uobj_get_type(qp), |
1750 | file->ucontext); | |
1751 | if (IS_ERR(obj)) | |
1752 | return PTR_ERR(obj); | |
42849b26 | 1753 | |
fd3c7904 MB |
1754 | xrcd_uobj = uobj_get_read(uobj_get_type(xrcd), cmd.pd_handle, |
1755 | file->ucontext); | |
1756 | if (IS_ERR(xrcd_uobj)) { | |
1757 | ret = -EINVAL; | |
1758 | goto err_put; | |
1759 | } | |
42849b26 | 1760 | |
fd3c7904 | 1761 | xrcd = (struct ib_xrcd *)xrcd_uobj->object; |
42849b26 SH |
1762 | if (!xrcd) { |
1763 | ret = -EINVAL; | |
fd3c7904 | 1764 | goto err_xrcd; |
42849b26 SH |
1765 | } |
1766 | ||
1767 | attr.event_handler = ib_uverbs_qp_event_handler; | |
1768 | attr.qp_context = file; | |
1769 | attr.qp_num = cmd.qpn; | |
1770 | attr.qp_type = cmd.qp_type; | |
1771 | ||
1772 | obj->uevent.events_reported = 0; | |
1773 | INIT_LIST_HEAD(&obj->uevent.event_list); | |
1774 | INIT_LIST_HEAD(&obj->mcast_list); | |
1775 | ||
1776 | qp = ib_open_qp(xrcd, &attr); | |
1777 | if (IS_ERR(qp)) { | |
1778 | ret = PTR_ERR(qp); | |
fd3c7904 | 1779 | goto err_xrcd; |
42849b26 SH |
1780 | } |
1781 | ||
42849b26 | 1782 | obj->uevent.uobject.object = qp; |
fd3c7904 | 1783 | obj->uevent.uobject.user_handle = cmd.user_handle; |
42849b26 SH |
1784 | |
1785 | memset(&resp, 0, sizeof resp); | |
1786 | resp.qpn = qp->qp_num; | |
1787 | resp.qp_handle = obj->uevent.uobject.id; | |
1788 | ||
40a20339 | 1789 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { |
42849b26 | 1790 | ret = -EFAULT; |
fd3c7904 | 1791 | goto err_destroy; |
42849b26 SH |
1792 | } |
1793 | ||
846be90d YH |
1794 | obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject); |
1795 | atomic_inc(&obj->uxrcd->refcnt); | |
fd3c7904 MB |
1796 | qp->uobject = &obj->uevent.uobject; |
1797 | uobj_put_read(xrcd_uobj); | |
42849b26 | 1798 | |
42849b26 | 1799 | |
fd3c7904 | 1800 | uobj_alloc_commit(&obj->uevent.uobject); |
42849b26 SH |
1801 | |
1802 | return in_len; | |
1803 | ||
42849b26 SH |
1804 | err_destroy: |
1805 | ib_destroy_qp(qp); | |
fd3c7904 MB |
1806 | err_xrcd: |
1807 | uobj_put_read(xrcd_uobj); | |
42849b26 | 1808 | err_put: |
fd3c7904 | 1809 | uobj_alloc_abort(&obj->uevent.uobject); |
42849b26 SH |
1810 | return ret; |
1811 | } | |
1812 | ||
89caa053 PP |
1813 | static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest *uverb_attr, |
1814 | struct rdma_ah_attr *rdma_attr) | |
1815 | { | |
1816 | const struct ib_global_route *grh; | |
1817 | ||
1818 | uverb_attr->dlid = rdma_ah_get_dlid(rdma_attr); | |
1819 | uverb_attr->sl = rdma_ah_get_sl(rdma_attr); | |
1820 | uverb_attr->src_path_bits = rdma_ah_get_path_bits(rdma_attr); | |
1821 | uverb_attr->static_rate = rdma_ah_get_static_rate(rdma_attr); | |
1822 | uverb_attr->is_global = !!(rdma_ah_get_ah_flags(rdma_attr) & | |
1823 | IB_AH_GRH); | |
1824 | if (uverb_attr->is_global) { | |
1825 | grh = rdma_ah_read_grh(rdma_attr); | |
1826 | memcpy(uverb_attr->dgid, grh->dgid.raw, 16); | |
1827 | uverb_attr->flow_label = grh->flow_label; | |
1828 | uverb_attr->sgid_index = grh->sgid_index; | |
1829 | uverb_attr->hop_limit = grh->hop_limit; | |
1830 | uverb_attr->traffic_class = grh->traffic_class; | |
1831 | } | |
1832 | uverb_attr->port_num = rdma_ah_get_port_num(rdma_attr); | |
1833 | } | |
1834 | ||
7ccc9a24 | 1835 | ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file, |
057aec0d | 1836 | struct ib_device *ib_dev, |
7ccc9a24 DB |
1837 | const char __user *buf, int in_len, |
1838 | int out_len) | |
1839 | { | |
1840 | struct ib_uverbs_query_qp cmd; | |
1841 | struct ib_uverbs_query_qp_resp resp; | |
1842 | struct ib_qp *qp; | |
1843 | struct ib_qp_attr *attr; | |
1844 | struct ib_qp_init_attr *init_attr; | |
1845 | int ret; | |
1846 | ||
1847 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
1848 | return -EFAULT; | |
1849 | ||
1850 | attr = kmalloc(sizeof *attr, GFP_KERNEL); | |
1851 | init_attr = kmalloc(sizeof *init_attr, GFP_KERNEL); | |
1852 | if (!attr || !init_attr) { | |
1853 | ret = -ENOMEM; | |
1854 | goto out; | |
1855 | } | |
1856 | ||
fd3c7904 | 1857 | qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext); |
9ead190b | 1858 | if (!qp) { |
7ccc9a24 | 1859 | ret = -EINVAL; |
9ead190b RD |
1860 | goto out; |
1861 | } | |
1862 | ||
1863 | ret = ib_query_qp(qp, attr, cmd.attr_mask, init_attr); | |
7ccc9a24 | 1864 | |
fd3c7904 | 1865 | uobj_put_obj_read(qp); |
7ccc9a24 DB |
1866 | |
1867 | if (ret) | |
1868 | goto out; | |
1869 | ||
1870 | memset(&resp, 0, sizeof resp); | |
1871 | ||
1872 | resp.qp_state = attr->qp_state; | |
1873 | resp.cur_qp_state = attr->cur_qp_state; | |
1874 | resp.path_mtu = attr->path_mtu; | |
1875 | resp.path_mig_state = attr->path_mig_state; | |
1876 | resp.qkey = attr->qkey; | |
1877 | resp.rq_psn = attr->rq_psn; | |
1878 | resp.sq_psn = attr->sq_psn; | |
1879 | resp.dest_qp_num = attr->dest_qp_num; | |
1880 | resp.qp_access_flags = attr->qp_access_flags; | |
1881 | resp.pkey_index = attr->pkey_index; | |
1882 | resp.alt_pkey_index = attr->alt_pkey_index; | |
0b26c88f | 1883 | resp.sq_draining = attr->sq_draining; |
7ccc9a24 DB |
1884 | resp.max_rd_atomic = attr->max_rd_atomic; |
1885 | resp.max_dest_rd_atomic = attr->max_dest_rd_atomic; | |
1886 | resp.min_rnr_timer = attr->min_rnr_timer; | |
1887 | resp.port_num = attr->port_num; | |
1888 | resp.timeout = attr->timeout; | |
1889 | resp.retry_cnt = attr->retry_cnt; | |
1890 | resp.rnr_retry = attr->rnr_retry; | |
1891 | resp.alt_port_num = attr->alt_port_num; | |
1892 | resp.alt_timeout = attr->alt_timeout; | |
1893 | ||
89caa053 PP |
1894 | copy_ah_attr_to_uverbs(&resp.dest, &attr->ah_attr); |
1895 | copy_ah_attr_to_uverbs(&resp.alt_dest, &attr->alt_ah_attr); | |
7ccc9a24 DB |
1896 | |
1897 | resp.max_send_wr = init_attr->cap.max_send_wr; | |
1898 | resp.max_recv_wr = init_attr->cap.max_recv_wr; | |
1899 | resp.max_send_sge = init_attr->cap.max_send_sge; | |
1900 | resp.max_recv_sge = init_attr->cap.max_recv_sge; | |
1901 | resp.max_inline_data = init_attr->cap.max_inline_data; | |
27d56300 | 1902 | resp.sq_sig_all = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR; |
7ccc9a24 | 1903 | |
40a20339 | 1904 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
7ccc9a24 DB |
1905 | ret = -EFAULT; |
1906 | ||
1907 | out: | |
1908 | kfree(attr); | |
1909 | kfree(init_attr); | |
1910 | ||
1911 | return ret ? ret : in_len; | |
1912 | } | |
1913 | ||
9977f4f6 SH |
1914 | /* Remove ignored fields set in the attribute mask */ |
1915 | static int modify_qp_mask(enum ib_qp_type qp_type, int mask) | |
1916 | { | |
1917 | switch (qp_type) { | |
1918 | case IB_QPT_XRC_INI: | |
1919 | return mask & ~(IB_QP_MAX_DEST_RD_ATOMIC | IB_QP_MIN_RNR_TIMER); | |
b93f3c18 SH |
1920 | case IB_QPT_XRC_TGT: |
1921 | return mask & ~(IB_QP_MAX_QP_RD_ATOMIC | IB_QP_RETRY_CNT | | |
1922 | IB_QP_RNR_RETRY); | |
9977f4f6 SH |
1923 | default: |
1924 | return mask; | |
1925 | } | |
1926 | } | |
1927 | ||
89caa053 PP |
1928 | static void copy_ah_attr_from_uverbs(struct ib_device *dev, |
1929 | struct rdma_ah_attr *rdma_attr, | |
1930 | struct ib_uverbs_qp_dest *uverb_attr) | |
1931 | { | |
1932 | rdma_attr->type = rdma_ah_find_type(dev, uverb_attr->port_num); | |
1933 | if (uverb_attr->is_global) { | |
1934 | rdma_ah_set_grh(rdma_attr, NULL, | |
1935 | uverb_attr->flow_label, | |
1936 | uverb_attr->sgid_index, | |
1937 | uverb_attr->hop_limit, | |
1938 | uverb_attr->traffic_class); | |
1939 | rdma_ah_set_dgid_raw(rdma_attr, uverb_attr->dgid); | |
1940 | } else { | |
1941 | rdma_ah_set_ah_flags(rdma_attr, 0); | |
1942 | } | |
1943 | rdma_ah_set_dlid(rdma_attr, uverb_attr->dlid); | |
1944 | rdma_ah_set_sl(rdma_attr, uverb_attr->sl); | |
1945 | rdma_ah_set_path_bits(rdma_attr, uverb_attr->src_path_bits); | |
1946 | rdma_ah_set_static_rate(rdma_attr, uverb_attr->static_rate); | |
1947 | rdma_ah_set_port_num(rdma_attr, uverb_attr->port_num); | |
1948 | rdma_ah_set_make_grd(rdma_attr, false); | |
1949 | } | |
1950 | ||
189aba99 BW |
1951 | static int modify_qp(struct ib_uverbs_file *file, |
1952 | struct ib_uverbs_ex_modify_qp *cmd, struct ib_udata *udata) | |
bc38a6ab | 1953 | { |
189aba99 BW |
1954 | struct ib_qp_attr *attr; |
1955 | struct ib_qp *qp; | |
1956 | int ret; | |
9bc57e2d | 1957 | |
bc38a6ab RD |
1958 | attr = kmalloc(sizeof *attr, GFP_KERNEL); |
1959 | if (!attr) | |
1960 | return -ENOMEM; | |
1961 | ||
fd3c7904 | 1962 | qp = uobj_get_obj_read(qp, cmd->base.qp_handle, file->ucontext); |
9ead190b | 1963 | if (!qp) { |
bc38a6ab RD |
1964 | ret = -EINVAL; |
1965 | goto out; | |
1966 | } | |
1967 | ||
5a7a88f1 IM |
1968 | if ((cmd->base.attr_mask & IB_QP_PORT) && |
1969 | !rdma_is_port_valid(qp->device, cmd->base.port_num)) { | |
5ecce4c9 BP |
1970 | ret = -EINVAL; |
1971 | goto release_qp; | |
1972 | } | |
1973 | ||
189aba99 BW |
1974 | attr->qp_state = cmd->base.qp_state; |
1975 | attr->cur_qp_state = cmd->base.cur_qp_state; | |
1976 | attr->path_mtu = cmd->base.path_mtu; | |
1977 | attr->path_mig_state = cmd->base.path_mig_state; | |
1978 | attr->qkey = cmd->base.qkey; | |
1979 | attr->rq_psn = cmd->base.rq_psn; | |
1980 | attr->sq_psn = cmd->base.sq_psn; | |
1981 | attr->dest_qp_num = cmd->base.dest_qp_num; | |
1982 | attr->qp_access_flags = cmd->base.qp_access_flags; | |
1983 | attr->pkey_index = cmd->base.pkey_index; | |
1984 | attr->alt_pkey_index = cmd->base.alt_pkey_index; | |
1985 | attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify; | |
1986 | attr->max_rd_atomic = cmd->base.max_rd_atomic; | |
1987 | attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic; | |
1988 | attr->min_rnr_timer = cmd->base.min_rnr_timer; | |
1989 | attr->port_num = cmd->base.port_num; | |
1990 | attr->timeout = cmd->base.timeout; | |
1991 | attr->retry_cnt = cmd->base.retry_cnt; | |
1992 | attr->rnr_retry = cmd->base.rnr_retry; | |
1993 | attr->alt_port_num = cmd->base.alt_port_num; | |
1994 | attr->alt_timeout = cmd->base.alt_timeout; | |
1995 | attr->rate_limit = cmd->rate_limit; | |
1996 | ||
498ca3c8 | 1997 | if (cmd->base.attr_mask & IB_QP_AV) |
89caa053 PP |
1998 | copy_ah_attr_from_uverbs(qp->device, &attr->ah_attr, |
1999 | &cmd->base.dest); | |
189aba99 | 2000 | |
498ca3c8 | 2001 | if (cmd->base.attr_mask & IB_QP_ALT_PATH) |
89caa053 PP |
2002 | copy_ah_attr_from_uverbs(qp->device, &attr->alt_ah_attr, |
2003 | &cmd->base.alt_dest); | |
bc38a6ab | 2004 | |
f7c8f2e9 PP |
2005 | ret = ib_modify_qp_with_udata(qp, attr, |
2006 | modify_qp_mask(qp->qp_type, | |
2007 | cmd->base.attr_mask), | |
2008 | udata); | |
9ead190b | 2009 | |
0fb8bcf0 | 2010 | release_qp: |
fd3c7904 | 2011 | uobj_put_obj_read(qp); |
bc38a6ab | 2012 | out: |
bc38a6ab RD |
2013 | kfree(attr); |
2014 | ||
2015 | return ret; | |
2016 | } | |
2017 | ||
189aba99 BW |
2018 | ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, |
2019 | struct ib_device *ib_dev, | |
2020 | const char __user *buf, int in_len, | |
2021 | int out_len) | |
2022 | { | |
2023 | struct ib_uverbs_ex_modify_qp cmd = {}; | |
2024 | struct ib_udata udata; | |
2025 | int ret; | |
2026 | ||
2027 | if (copy_from_user(&cmd.base, buf, sizeof(cmd.base))) | |
2028 | return -EFAULT; | |
2029 | ||
2030 | if (cmd.base.attr_mask & | |
2031 | ~((IB_USER_LEGACY_LAST_QP_ATTR_MASK << 1) - 1)) | |
2032 | return -EOPNOTSUPP; | |
2033 | ||
40a20339 | 2034 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd.base), NULL, |
e093111d AR |
2035 | in_len - sizeof(cmd.base) - sizeof(struct ib_uverbs_cmd_hdr), |
2036 | out_len); | |
189aba99 BW |
2037 | |
2038 | ret = modify_qp(file, &cmd, &udata); | |
2039 | if (ret) | |
2040 | return ret; | |
2041 | ||
2042 | return in_len; | |
2043 | } | |
2044 | ||
2045 | int ib_uverbs_ex_modify_qp(struct ib_uverbs_file *file, | |
2046 | struct ib_device *ib_dev, | |
2047 | struct ib_udata *ucore, | |
2048 | struct ib_udata *uhw) | |
2049 | { | |
2050 | struct ib_uverbs_ex_modify_qp cmd = {}; | |
2051 | int ret; | |
2052 | ||
2053 | /* | |
2054 | * Last bit is reserved for extending the attr_mask by | |
2055 | * using another field. | |
2056 | */ | |
2057 | BUILD_BUG_ON(IB_USER_LAST_QP_ATTR_MASK == (1 << 31)); | |
2058 | ||
2059 | if (ucore->inlen < sizeof(cmd.base)) | |
2060 | return -EINVAL; | |
2061 | ||
2062 | ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); | |
2063 | if (ret) | |
2064 | return ret; | |
2065 | ||
2066 | if (cmd.base.attr_mask & | |
2067 | ~((IB_USER_LAST_QP_ATTR_MASK << 1) - 1)) | |
2068 | return -EOPNOTSUPP; | |
2069 | ||
2070 | if (ucore->inlen > sizeof(cmd)) { | |
2071 | if (ib_is_udata_cleared(ucore, sizeof(cmd), | |
2072 | ucore->inlen - sizeof(cmd))) | |
2073 | return -EOPNOTSUPP; | |
2074 | } | |
2075 | ||
2076 | ret = modify_qp(file, &cmd, uhw); | |
2077 | ||
2078 | return ret; | |
2079 | } | |
2080 | ||
bc38a6ab | 2081 | ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, |
057aec0d | 2082 | struct ib_device *ib_dev, |
bc38a6ab RD |
2083 | const char __user *buf, int in_len, |
2084 | int out_len) | |
2085 | { | |
63aaf647 RD |
2086 | struct ib_uverbs_destroy_qp cmd; |
2087 | struct ib_uverbs_destroy_qp_resp resp; | |
9ead190b | 2088 | struct ib_uobject *uobj; |
9ead190b | 2089 | struct ib_uqp_object *obj; |
63aaf647 | 2090 | int ret = -EINVAL; |
bc38a6ab RD |
2091 | |
2092 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2093 | return -EFAULT; | |
2094 | ||
63aaf647 RD |
2095 | memset(&resp, 0, sizeof resp); |
2096 | ||
fd3c7904 MB |
2097 | uobj = uobj_get_write(uobj_get_type(qp), cmd.qp_handle, |
2098 | file->ucontext); | |
2099 | if (IS_ERR(uobj)) | |
2100 | return PTR_ERR(uobj); | |
2101 | ||
9ead190b | 2102 | obj = container_of(uobj, struct ib_uqp_object, uevent.uobject); |
fd3c7904 MB |
2103 | /* |
2104 | * Make sure we don't free the memory in remove_commit as we still | |
2105 | * needs the uobject memory to create the response. | |
2106 | */ | |
2107 | uverbs_uobject_get(uobj); | |
f4e40156 | 2108 | |
fd3c7904 MB |
2109 | ret = uobj_remove_commit(uobj); |
2110 | if (ret) { | |
2111 | uverbs_uobject_put(uobj); | |
9ead190b | 2112 | return ret; |
fd3c7904 | 2113 | } |
63aaf647 | 2114 | |
9ead190b | 2115 | resp.events_reported = obj->uevent.events_reported; |
fd3c7904 | 2116 | uverbs_uobject_put(uobj); |
bc38a6ab | 2117 | |
40a20339 | 2118 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
9ead190b | 2119 | return -EFAULT; |
bc38a6ab | 2120 | |
9ead190b | 2121 | return in_len; |
bc38a6ab RD |
2122 | } |
2123 | ||
e622f2f4 CH |
2124 | static void *alloc_wr(size_t wr_size, __u32 num_sge) |
2125 | { | |
4f7f4dcf VT |
2126 | if (num_sge >= (U32_MAX - ALIGN(wr_size, sizeof (struct ib_sge))) / |
2127 | sizeof (struct ib_sge)) | |
2128 | return NULL; | |
2129 | ||
e622f2f4 CH |
2130 | return kmalloc(ALIGN(wr_size, sizeof (struct ib_sge)) + |
2131 | num_sge * sizeof (struct ib_sge), GFP_KERNEL); | |
4f7f4dcf | 2132 | } |
e622f2f4 | 2133 | |
67cdb40c | 2134 | ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, |
057aec0d | 2135 | struct ib_device *ib_dev, |
a74cd4af RD |
2136 | const char __user *buf, int in_len, |
2137 | int out_len) | |
67cdb40c RD |
2138 | { |
2139 | struct ib_uverbs_post_send cmd; | |
2140 | struct ib_uverbs_post_send_resp resp; | |
2141 | struct ib_uverbs_send_wr *user_wr; | |
2142 | struct ib_send_wr *wr = NULL, *last, *next, *bad_wr; | |
2143 | struct ib_qp *qp; | |
2144 | int i, sg_ind; | |
9ead190b | 2145 | int is_ud; |
67cdb40c | 2146 | ssize_t ret = -EINVAL; |
1d784b89 | 2147 | size_t next_size; |
67cdb40c RD |
2148 | |
2149 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2150 | return -EFAULT; | |
2151 | ||
2152 | if (in_len < sizeof cmd + cmd.wqe_size * cmd.wr_count + | |
2153 | cmd.sge_count * sizeof (struct ib_uverbs_sge)) | |
2154 | return -EINVAL; | |
2155 | ||
2156 | if (cmd.wqe_size < sizeof (struct ib_uverbs_send_wr)) | |
2157 | return -EINVAL; | |
2158 | ||
2159 | user_wr = kmalloc(cmd.wqe_size, GFP_KERNEL); | |
2160 | if (!user_wr) | |
2161 | return -ENOMEM; | |
2162 | ||
fd3c7904 | 2163 | qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext); |
9ead190b | 2164 | if (!qp) |
67cdb40c RD |
2165 | goto out; |
2166 | ||
9ead190b | 2167 | is_ud = qp->qp_type == IB_QPT_UD; |
67cdb40c RD |
2168 | sg_ind = 0; |
2169 | last = NULL; | |
2170 | for (i = 0; i < cmd.wr_count; ++i) { | |
2171 | if (copy_from_user(user_wr, | |
2172 | buf + sizeof cmd + i * cmd.wqe_size, | |
2173 | cmd.wqe_size)) { | |
2174 | ret = -EFAULT; | |
9ead190b | 2175 | goto out_put; |
67cdb40c RD |
2176 | } |
2177 | ||
2178 | if (user_wr->num_sge + sg_ind > cmd.sge_count) { | |
2179 | ret = -EINVAL; | |
9ead190b | 2180 | goto out_put; |
67cdb40c RD |
2181 | } |
2182 | ||
e622f2f4 CH |
2183 | if (is_ud) { |
2184 | struct ib_ud_wr *ud; | |
2185 | ||
2186 | if (user_wr->opcode != IB_WR_SEND && | |
2187 | user_wr->opcode != IB_WR_SEND_WITH_IMM) { | |
2188 | ret = -EINVAL; | |
2189 | goto out_put; | |
2190 | } | |
2191 | ||
1d784b89 MM |
2192 | next_size = sizeof(*ud); |
2193 | ud = alloc_wr(next_size, user_wr->num_sge); | |
e622f2f4 CH |
2194 | if (!ud) { |
2195 | ret = -ENOMEM; | |
2196 | goto out_put; | |
2197 | } | |
2198 | ||
fd3c7904 MB |
2199 | ud->ah = uobj_get_obj_read(ah, user_wr->wr.ud.ah, |
2200 | file->ucontext); | |
e622f2f4 CH |
2201 | if (!ud->ah) { |
2202 | kfree(ud); | |
2203 | ret = -EINVAL; | |
2204 | goto out_put; | |
2205 | } | |
2206 | ud->remote_qpn = user_wr->wr.ud.remote_qpn; | |
2207 | ud->remote_qkey = user_wr->wr.ud.remote_qkey; | |
2208 | ||
2209 | next = &ud->wr; | |
2210 | } else if (user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM || | |
2211 | user_wr->opcode == IB_WR_RDMA_WRITE || | |
2212 | user_wr->opcode == IB_WR_RDMA_READ) { | |
2213 | struct ib_rdma_wr *rdma; | |
2214 | ||
1d784b89 MM |
2215 | next_size = sizeof(*rdma); |
2216 | rdma = alloc_wr(next_size, user_wr->num_sge); | |
e622f2f4 CH |
2217 | if (!rdma) { |
2218 | ret = -ENOMEM; | |
2219 | goto out_put; | |
2220 | } | |
2221 | ||
2222 | rdma->remote_addr = user_wr->wr.rdma.remote_addr; | |
2223 | rdma->rkey = user_wr->wr.rdma.rkey; | |
2224 | ||
2225 | next = &rdma->wr; | |
2226 | } else if (user_wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP || | |
2227 | user_wr->opcode == IB_WR_ATOMIC_FETCH_AND_ADD) { | |
2228 | struct ib_atomic_wr *atomic; | |
2229 | ||
1d784b89 MM |
2230 | next_size = sizeof(*atomic); |
2231 | atomic = alloc_wr(next_size, user_wr->num_sge); | |
e622f2f4 CH |
2232 | if (!atomic) { |
2233 | ret = -ENOMEM; | |
2234 | goto out_put; | |
2235 | } | |
2236 | ||
2237 | atomic->remote_addr = user_wr->wr.atomic.remote_addr; | |
2238 | atomic->compare_add = user_wr->wr.atomic.compare_add; | |
2239 | atomic->swap = user_wr->wr.atomic.swap; | |
2240 | atomic->rkey = user_wr->wr.atomic.rkey; | |
2241 | ||
2242 | next = &atomic->wr; | |
2243 | } else if (user_wr->opcode == IB_WR_SEND || | |
2244 | user_wr->opcode == IB_WR_SEND_WITH_IMM || | |
2245 | user_wr->opcode == IB_WR_SEND_WITH_INV) { | |
1d784b89 MM |
2246 | next_size = sizeof(*next); |
2247 | next = alloc_wr(next_size, user_wr->num_sge); | |
e622f2f4 CH |
2248 | if (!next) { |
2249 | ret = -ENOMEM; | |
2250 | goto out_put; | |
2251 | } | |
2252 | } else { | |
2253 | ret = -EINVAL; | |
9ead190b | 2254 | goto out_put; |
67cdb40c RD |
2255 | } |
2256 | ||
e622f2f4 CH |
2257 | if (user_wr->opcode == IB_WR_SEND_WITH_IMM || |
2258 | user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) { | |
2259 | next->ex.imm_data = | |
2260 | (__be32 __force) user_wr->ex.imm_data; | |
2261 | } else if (user_wr->opcode == IB_WR_SEND_WITH_INV) { | |
2262 | next->ex.invalidate_rkey = user_wr->ex.invalidate_rkey; | |
2263 | } | |
2264 | ||
67cdb40c RD |
2265 | if (!last) |
2266 | wr = next; | |
2267 | else | |
2268 | last->next = next; | |
2269 | last = next; | |
2270 | ||
2271 | next->next = NULL; | |
2272 | next->wr_id = user_wr->wr_id; | |
2273 | next->num_sge = user_wr->num_sge; | |
2274 | next->opcode = user_wr->opcode; | |
2275 | next->send_flags = user_wr->send_flags; | |
67cdb40c | 2276 | |
67cdb40c RD |
2277 | if (next->num_sge) { |
2278 | next->sg_list = (void *) next + | |
1d784b89 | 2279 | ALIGN(next_size, sizeof(struct ib_sge)); |
67cdb40c RD |
2280 | if (copy_from_user(next->sg_list, |
2281 | buf + sizeof cmd + | |
2282 | cmd.wr_count * cmd.wqe_size + | |
2283 | sg_ind * sizeof (struct ib_sge), | |
2284 | next->num_sge * sizeof (struct ib_sge))) { | |
2285 | ret = -EFAULT; | |
9ead190b | 2286 | goto out_put; |
67cdb40c RD |
2287 | } |
2288 | sg_ind += next->num_sge; | |
2289 | } else | |
2290 | next->sg_list = NULL; | |
2291 | } | |
2292 | ||
2293 | resp.bad_wr = 0; | |
0e0ec7e0 | 2294 | ret = qp->device->post_send(qp->real_qp, wr, &bad_wr); |
67cdb40c RD |
2295 | if (ret) |
2296 | for (next = wr; next; next = next->next) { | |
2297 | ++resp.bad_wr; | |
2298 | if (next == bad_wr) | |
2299 | break; | |
2300 | } | |
2301 | ||
40a20339 | 2302 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
67cdb40c RD |
2303 | ret = -EFAULT; |
2304 | ||
9ead190b | 2305 | out_put: |
fd3c7904 | 2306 | uobj_put_obj_read(qp); |
67cdb40c RD |
2307 | |
2308 | while (wr) { | |
e622f2f4 | 2309 | if (is_ud && ud_wr(wr)->ah) |
fd3c7904 | 2310 | uobj_put_obj_read(ud_wr(wr)->ah); |
67cdb40c RD |
2311 | next = wr->next; |
2312 | kfree(wr); | |
2313 | wr = next; | |
2314 | } | |
2315 | ||
18320828 | 2316 | out: |
67cdb40c RD |
2317 | kfree(user_wr); |
2318 | ||
2319 | return ret ? ret : in_len; | |
2320 | } | |
2321 | ||
2322 | static struct ib_recv_wr *ib_uverbs_unmarshall_recv(const char __user *buf, | |
2323 | int in_len, | |
2324 | u32 wr_count, | |
2325 | u32 sge_count, | |
2326 | u32 wqe_size) | |
2327 | { | |
2328 | struct ib_uverbs_recv_wr *user_wr; | |
2329 | struct ib_recv_wr *wr = NULL, *last, *next; | |
2330 | int sg_ind; | |
2331 | int i; | |
2332 | int ret; | |
2333 | ||
2334 | if (in_len < wqe_size * wr_count + | |
2335 | sge_count * sizeof (struct ib_uverbs_sge)) | |
2336 | return ERR_PTR(-EINVAL); | |
2337 | ||
2338 | if (wqe_size < sizeof (struct ib_uverbs_recv_wr)) | |
2339 | return ERR_PTR(-EINVAL); | |
2340 | ||
2341 | user_wr = kmalloc(wqe_size, GFP_KERNEL); | |
2342 | if (!user_wr) | |
2343 | return ERR_PTR(-ENOMEM); | |
2344 | ||
2345 | sg_ind = 0; | |
2346 | last = NULL; | |
2347 | for (i = 0; i < wr_count; ++i) { | |
2348 | if (copy_from_user(user_wr, buf + i * wqe_size, | |
2349 | wqe_size)) { | |
2350 | ret = -EFAULT; | |
2351 | goto err; | |
2352 | } | |
2353 | ||
2354 | if (user_wr->num_sge + sg_ind > sge_count) { | |
2355 | ret = -EINVAL; | |
2356 | goto err; | |
2357 | } | |
2358 | ||
4f7f4dcf VT |
2359 | if (user_wr->num_sge >= |
2360 | (U32_MAX - ALIGN(sizeof *next, sizeof (struct ib_sge))) / | |
2361 | sizeof (struct ib_sge)) { | |
2362 | ret = -EINVAL; | |
2363 | goto err; | |
2364 | } | |
2365 | ||
67cdb40c RD |
2366 | next = kmalloc(ALIGN(sizeof *next, sizeof (struct ib_sge)) + |
2367 | user_wr->num_sge * sizeof (struct ib_sge), | |
2368 | GFP_KERNEL); | |
2369 | if (!next) { | |
2370 | ret = -ENOMEM; | |
2371 | goto err; | |
2372 | } | |
2373 | ||
2374 | if (!last) | |
2375 | wr = next; | |
2376 | else | |
2377 | last->next = next; | |
2378 | last = next; | |
2379 | ||
2380 | next->next = NULL; | |
2381 | next->wr_id = user_wr->wr_id; | |
2382 | next->num_sge = user_wr->num_sge; | |
2383 | ||
2384 | if (next->num_sge) { | |
2385 | next->sg_list = (void *) next + | |
2386 | ALIGN(sizeof *next, sizeof (struct ib_sge)); | |
2387 | if (copy_from_user(next->sg_list, | |
2388 | buf + wr_count * wqe_size + | |
2389 | sg_ind * sizeof (struct ib_sge), | |
2390 | next->num_sge * sizeof (struct ib_sge))) { | |
2391 | ret = -EFAULT; | |
2392 | goto err; | |
2393 | } | |
2394 | sg_ind += next->num_sge; | |
2395 | } else | |
2396 | next->sg_list = NULL; | |
2397 | } | |
2398 | ||
2399 | kfree(user_wr); | |
2400 | return wr; | |
2401 | ||
2402 | err: | |
2403 | kfree(user_wr); | |
2404 | ||
2405 | while (wr) { | |
2406 | next = wr->next; | |
2407 | kfree(wr); | |
2408 | wr = next; | |
2409 | } | |
2410 | ||
2411 | return ERR_PTR(ret); | |
2412 | } | |
2413 | ||
2414 | ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file, | |
057aec0d | 2415 | struct ib_device *ib_dev, |
a74cd4af RD |
2416 | const char __user *buf, int in_len, |
2417 | int out_len) | |
67cdb40c RD |
2418 | { |
2419 | struct ib_uverbs_post_recv cmd; | |
2420 | struct ib_uverbs_post_recv_resp resp; | |
2421 | struct ib_recv_wr *wr, *next, *bad_wr; | |
2422 | struct ib_qp *qp; | |
2423 | ssize_t ret = -EINVAL; | |
2424 | ||
2425 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2426 | return -EFAULT; | |
2427 | ||
2428 | wr = ib_uverbs_unmarshall_recv(buf + sizeof cmd, | |
2429 | in_len - sizeof cmd, cmd.wr_count, | |
2430 | cmd.sge_count, cmd.wqe_size); | |
2431 | if (IS_ERR(wr)) | |
2432 | return PTR_ERR(wr); | |
2433 | ||
fd3c7904 | 2434 | qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext); |
9ead190b | 2435 | if (!qp) |
67cdb40c RD |
2436 | goto out; |
2437 | ||
2438 | resp.bad_wr = 0; | |
0e0ec7e0 | 2439 | ret = qp->device->post_recv(qp->real_qp, wr, &bad_wr); |
9ead190b | 2440 | |
fd3c7904 MB |
2441 | uobj_put_obj_read(qp); |
2442 | if (ret) { | |
67cdb40c RD |
2443 | for (next = wr; next; next = next->next) { |
2444 | ++resp.bad_wr; | |
2445 | if (next == bad_wr) | |
2446 | break; | |
2447 | } | |
fd3c7904 | 2448 | } |
67cdb40c | 2449 | |
40a20339 | 2450 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
67cdb40c RD |
2451 | ret = -EFAULT; |
2452 | ||
2453 | out: | |
67cdb40c RD |
2454 | while (wr) { |
2455 | next = wr->next; | |
2456 | kfree(wr); | |
2457 | wr = next; | |
2458 | } | |
2459 | ||
2460 | return ret ? ret : in_len; | |
2461 | } | |
2462 | ||
2463 | ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file, | |
057aec0d | 2464 | struct ib_device *ib_dev, |
a74cd4af RD |
2465 | const char __user *buf, int in_len, |
2466 | int out_len) | |
67cdb40c RD |
2467 | { |
2468 | struct ib_uverbs_post_srq_recv cmd; | |
2469 | struct ib_uverbs_post_srq_recv_resp resp; | |
2470 | struct ib_recv_wr *wr, *next, *bad_wr; | |
2471 | struct ib_srq *srq; | |
2472 | ssize_t ret = -EINVAL; | |
2473 | ||
2474 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2475 | return -EFAULT; | |
2476 | ||
2477 | wr = ib_uverbs_unmarshall_recv(buf + sizeof cmd, | |
2478 | in_len - sizeof cmd, cmd.wr_count, | |
2479 | cmd.sge_count, cmd.wqe_size); | |
2480 | if (IS_ERR(wr)) | |
2481 | return PTR_ERR(wr); | |
2482 | ||
fd3c7904 | 2483 | srq = uobj_get_obj_read(srq, cmd.srq_handle, file->ucontext); |
9ead190b | 2484 | if (!srq) |
67cdb40c RD |
2485 | goto out; |
2486 | ||
2487 | resp.bad_wr = 0; | |
2488 | ret = srq->device->post_srq_recv(srq, wr, &bad_wr); | |
9ead190b | 2489 | |
fd3c7904 | 2490 | uobj_put_obj_read(srq); |
9ead190b | 2491 | |
67cdb40c RD |
2492 | if (ret) |
2493 | for (next = wr; next; next = next->next) { | |
2494 | ++resp.bad_wr; | |
2495 | if (next == bad_wr) | |
2496 | break; | |
2497 | } | |
2498 | ||
40a20339 | 2499 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
67cdb40c RD |
2500 | ret = -EFAULT; |
2501 | ||
2502 | out: | |
67cdb40c RD |
2503 | while (wr) { |
2504 | next = wr->next; | |
2505 | kfree(wr); | |
2506 | wr = next; | |
2507 | } | |
2508 | ||
2509 | return ret ? ret : in_len; | |
2510 | } | |
2511 | ||
2512 | ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, | |
057aec0d | 2513 | struct ib_device *ib_dev, |
67cdb40c RD |
2514 | const char __user *buf, int in_len, |
2515 | int out_len) | |
2516 | { | |
2517 | struct ib_uverbs_create_ah cmd; | |
2518 | struct ib_uverbs_create_ah_resp resp; | |
2519 | struct ib_uobject *uobj; | |
2520 | struct ib_pd *pd; | |
2521 | struct ib_ah *ah; | |
90898850 | 2522 | struct rdma_ah_attr attr; |
67cdb40c | 2523 | int ret; |
477864c8 | 2524 | struct ib_udata udata; |
67cdb40c RD |
2525 | |
2526 | if (out_len < sizeof resp) | |
2527 | return -ENOSPC; | |
2528 | ||
2529 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2530 | return -EFAULT; | |
2531 | ||
5ecce4c9 BP |
2532 | if (!rdma_is_port_valid(ib_dev, cmd.attr.port_num)) |
2533 | return -EINVAL; | |
2534 | ||
40a20339 AB |
2535 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
2536 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
2537 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
2538 | out_len - sizeof(resp)); | |
477864c8 | 2539 | |
fd3c7904 MB |
2540 | uobj = uobj_alloc(uobj_get_type(ah), file->ucontext); |
2541 | if (IS_ERR(uobj)) | |
2542 | return PTR_ERR(uobj); | |
67cdb40c | 2543 | |
fd3c7904 | 2544 | pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext); |
9ead190b | 2545 | if (!pd) { |
67cdb40c | 2546 | ret = -EINVAL; |
9ead190b | 2547 | goto err; |
67cdb40c RD |
2548 | } |
2549 | ||
44c58487 | 2550 | attr.type = rdma_ah_find_type(ib_dev, cmd.attr.port_num); |
d98bb7f7 | 2551 | rdma_ah_set_make_grd(&attr, false); |
d8966fcd DC |
2552 | rdma_ah_set_dlid(&attr, cmd.attr.dlid); |
2553 | rdma_ah_set_sl(&attr, cmd.attr.sl); | |
2554 | rdma_ah_set_path_bits(&attr, cmd.attr.src_path_bits); | |
2555 | rdma_ah_set_static_rate(&attr, cmd.attr.static_rate); | |
2556 | rdma_ah_set_port_num(&attr, cmd.attr.port_num); | |
2557 | ||
4ba66093 | 2558 | if (cmd.attr.is_global) { |
d8966fcd DC |
2559 | rdma_ah_set_grh(&attr, NULL, cmd.attr.grh.flow_label, |
2560 | cmd.attr.grh.sgid_index, | |
2561 | cmd.attr.grh.hop_limit, | |
2562 | cmd.attr.grh.traffic_class); | |
2563 | rdma_ah_set_dgid_raw(&attr, cmd.attr.grh.dgid); | |
4ba66093 | 2564 | } else { |
d8966fcd | 2565 | rdma_ah_set_ah_flags(&attr, 0); |
4ba66093 | 2566 | } |
477864c8 | 2567 | |
5cda6587 | 2568 | ah = rdma_create_user_ah(pd, &attr, &udata); |
67cdb40c RD |
2569 | if (IS_ERR(ah)) { |
2570 | ret = PTR_ERR(ah); | |
fd3c7904 | 2571 | goto err_put; |
67cdb40c RD |
2572 | } |
2573 | ||
9ead190b | 2574 | ah->uobject = uobj; |
fd3c7904 | 2575 | uobj->user_handle = cmd.user_handle; |
9ead190b | 2576 | uobj->object = ah; |
67cdb40c | 2577 | |
67cdb40c RD |
2578 | resp.ah_handle = uobj->id; |
2579 | ||
40a20339 | 2580 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { |
67cdb40c | 2581 | ret = -EFAULT; |
9ead190b | 2582 | goto err_copy; |
67cdb40c RD |
2583 | } |
2584 | ||
fd3c7904 MB |
2585 | uobj_put_obj_read(pd); |
2586 | uobj_alloc_commit(uobj); | |
67cdb40c RD |
2587 | |
2588 | return in_len; | |
2589 | ||
9ead190b | 2590 | err_copy: |
36523159 | 2591 | rdma_destroy_ah(ah); |
67cdb40c | 2592 | |
fd3c7904 MB |
2593 | err_put: |
2594 | uobj_put_obj_read(pd); | |
ec924b47 | 2595 | |
9ead190b | 2596 | err: |
fd3c7904 | 2597 | uobj_alloc_abort(uobj); |
67cdb40c RD |
2598 | return ret; |
2599 | } | |
2600 | ||
2601 | ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file, | |
057aec0d | 2602 | struct ib_device *ib_dev, |
67cdb40c RD |
2603 | const char __user *buf, int in_len, int out_len) |
2604 | { | |
2605 | struct ib_uverbs_destroy_ah cmd; | |
67cdb40c | 2606 | struct ib_uobject *uobj; |
9ead190b | 2607 | int ret; |
67cdb40c RD |
2608 | |
2609 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2610 | return -EFAULT; | |
2611 | ||
fd3c7904 MB |
2612 | uobj = uobj_get_write(uobj_get_type(ah), cmd.ah_handle, |
2613 | file->ucontext); | |
2614 | if (IS_ERR(uobj)) | |
2615 | return PTR_ERR(uobj); | |
67cdb40c | 2616 | |
fd3c7904 MB |
2617 | ret = uobj_remove_commit(uobj); |
2618 | return ret ?: in_len; | |
67cdb40c RD |
2619 | } |
2620 | ||
bc38a6ab | 2621 | ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file, |
057aec0d | 2622 | struct ib_device *ib_dev, |
bc38a6ab RD |
2623 | const char __user *buf, int in_len, |
2624 | int out_len) | |
2625 | { | |
2626 | struct ib_uverbs_attach_mcast cmd; | |
2627 | struct ib_qp *qp; | |
9ead190b | 2628 | struct ib_uqp_object *obj; |
f4e40156 | 2629 | struct ib_uverbs_mcast_entry *mcast; |
9ead190b | 2630 | int ret; |
bc38a6ab RD |
2631 | |
2632 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2633 | return -EFAULT; | |
2634 | ||
fd3c7904 | 2635 | qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext); |
9ead190b RD |
2636 | if (!qp) |
2637 | return -EINVAL; | |
f4e40156 | 2638 | |
9ead190b | 2639 | obj = container_of(qp->uobject, struct ib_uqp_object, uevent.uobject); |
f4e40156 | 2640 | |
f48b7269 | 2641 | mutex_lock(&obj->mcast_lock); |
9ead190b | 2642 | list_for_each_entry(mcast, &obj->mcast_list, list) |
f4e40156 JM |
2643 | if (cmd.mlid == mcast->lid && |
2644 | !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) { | |
2645 | ret = 0; | |
9ead190b | 2646 | goto out_put; |
f4e40156 JM |
2647 | } |
2648 | ||
2649 | mcast = kmalloc(sizeof *mcast, GFP_KERNEL); | |
2650 | if (!mcast) { | |
2651 | ret = -ENOMEM; | |
9ead190b | 2652 | goto out_put; |
f4e40156 JM |
2653 | } |
2654 | ||
2655 | mcast->lid = cmd.mlid; | |
2656 | memcpy(mcast->gid.raw, cmd.gid, sizeof mcast->gid.raw); | |
bc38a6ab | 2657 | |
f4e40156 | 2658 | ret = ib_attach_mcast(qp, &mcast->gid, cmd.mlid); |
9ead190b RD |
2659 | if (!ret) |
2660 | list_add_tail(&mcast->list, &obj->mcast_list); | |
2661 | else | |
f4e40156 JM |
2662 | kfree(mcast); |
2663 | ||
9ead190b | 2664 | out_put: |
f48b7269 | 2665 | mutex_unlock(&obj->mcast_lock); |
fd3c7904 | 2666 | uobj_put_obj_read(qp); |
bc38a6ab RD |
2667 | |
2668 | return ret ? ret : in_len; | |
2669 | } | |
2670 | ||
2671 | ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file, | |
057aec0d | 2672 | struct ib_device *ib_dev, |
bc38a6ab RD |
2673 | const char __user *buf, int in_len, |
2674 | int out_len) | |
2675 | { | |
2676 | struct ib_uverbs_detach_mcast cmd; | |
9ead190b | 2677 | struct ib_uqp_object *obj; |
bc38a6ab | 2678 | struct ib_qp *qp; |
f4e40156 | 2679 | struct ib_uverbs_mcast_entry *mcast; |
bc38a6ab | 2680 | int ret = -EINVAL; |
20c7840a | 2681 | bool found = false; |
bc38a6ab RD |
2682 | |
2683 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
2684 | return -EFAULT; | |
2685 | ||
fd3c7904 | 2686 | qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext); |
9ead190b RD |
2687 | if (!qp) |
2688 | return -EINVAL; | |
bc38a6ab | 2689 | |
fd3c7904 | 2690 | obj = container_of(qp->uobject, struct ib_uqp_object, uevent.uobject); |
f48b7269 | 2691 | mutex_lock(&obj->mcast_lock); |
fd3c7904 | 2692 | |
9ead190b | 2693 | list_for_each_entry(mcast, &obj->mcast_list, list) |
f4e40156 JM |
2694 | if (cmd.mlid == mcast->lid && |
2695 | !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) { | |
2696 | list_del(&mcast->list); | |
2697 | kfree(mcast); | |
20c7840a | 2698 | found = true; |
f4e40156 JM |
2699 | break; |
2700 | } | |
2701 | ||
20c7840a MR |
2702 | if (!found) { |
2703 | ret = -EINVAL; | |
2704 | goto out_put; | |
2705 | } | |
2706 | ||
2707 | ret = ib_detach_mcast(qp, (union ib_gid *)cmd.gid, cmd.mlid); | |
2708 | ||
9ead190b | 2709 | out_put: |
f48b7269 | 2710 | mutex_unlock(&obj->mcast_lock); |
fd3c7904 | 2711 | uobj_put_obj_read(qp); |
bc38a6ab RD |
2712 | return ret ? ret : in_len; |
2713 | } | |
f520ba5a | 2714 | |
94e03f11 MR |
2715 | static int kern_spec_to_ib_spec_action(struct ib_uverbs_flow_spec *kern_spec, |
2716 | union ib_flow_spec *ib_spec) | |
2717 | { | |
2718 | ib_spec->type = kern_spec->type; | |
2719 | switch (ib_spec->type) { | |
2720 | case IB_FLOW_SPEC_ACTION_TAG: | |
2721 | if (kern_spec->flow_tag.size != | |
2722 | sizeof(struct ib_uverbs_flow_spec_action_tag)) | |
2723 | return -EINVAL; | |
2724 | ||
2725 | ib_spec->flow_tag.size = sizeof(struct ib_flow_spec_action_tag); | |
2726 | ib_spec->flow_tag.tag_id = kern_spec->flow_tag.tag_id; | |
2727 | break; | |
483a3966 SS |
2728 | case IB_FLOW_SPEC_ACTION_DROP: |
2729 | if (kern_spec->drop.size != | |
2730 | sizeof(struct ib_uverbs_flow_spec_action_drop)) | |
2731 | return -EINVAL; | |
2732 | ||
2733 | ib_spec->drop.size = sizeof(struct ib_flow_spec_action_drop); | |
2734 | break; | |
94e03f11 MR |
2735 | default: |
2736 | return -EINVAL; | |
2737 | } | |
2738 | return 0; | |
2739 | } | |
2740 | ||
15dfbd6b MG |
2741 | static size_t kern_spec_filter_sz(struct ib_uverbs_flow_spec_hdr *spec) |
2742 | { | |
2743 | /* Returns user space filter size, includes padding */ | |
2744 | return (spec->size - sizeof(struct ib_uverbs_flow_spec_hdr)) / 2; | |
2745 | } | |
2746 | ||
2747 | static ssize_t spec_filter_size(void *kern_spec_filter, u16 kern_filter_size, | |
2748 | u16 ib_real_filter_sz) | |
2749 | { | |
2750 | /* | |
2751 | * User space filter structures must be 64 bit aligned, otherwise this | |
2752 | * may pass, but we won't handle additional new attributes. | |
2753 | */ | |
2754 | ||
2755 | if (kern_filter_size > ib_real_filter_sz) { | |
2756 | if (memchr_inv(kern_spec_filter + | |
2757 | ib_real_filter_sz, 0, | |
2758 | kern_filter_size - ib_real_filter_sz)) | |
2759 | return -EINVAL; | |
2760 | return ib_real_filter_sz; | |
2761 | } | |
2762 | return kern_filter_size; | |
2763 | } | |
2764 | ||
94e03f11 MR |
2765 | static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec *kern_spec, |
2766 | union ib_flow_spec *ib_spec) | |
436f2ad0 | 2767 | { |
15dfbd6b MG |
2768 | ssize_t actual_filter_sz; |
2769 | ssize_t kern_filter_sz; | |
2770 | ssize_t ib_filter_sz; | |
2771 | void *kern_spec_mask; | |
2772 | void *kern_spec_val; | |
2773 | ||
c780d82a YD |
2774 | if (kern_spec->reserved) |
2775 | return -EINVAL; | |
2776 | ||
436f2ad0 HHZ |
2777 | ib_spec->type = kern_spec->type; |
2778 | ||
15dfbd6b MG |
2779 | kern_filter_sz = kern_spec_filter_sz(&kern_spec->hdr); |
2780 | /* User flow spec size must be aligned to 4 bytes */ | |
2781 | if (kern_filter_sz != ALIGN(kern_filter_sz, 4)) | |
2782 | return -EINVAL; | |
2783 | ||
2784 | kern_spec_val = (void *)kern_spec + | |
2785 | sizeof(struct ib_uverbs_flow_spec_hdr); | |
2786 | kern_spec_mask = kern_spec_val + kern_filter_sz; | |
fbf46860 MR |
2787 | if (ib_spec->type == (IB_FLOW_SPEC_INNER | IB_FLOW_SPEC_VXLAN_TUNNEL)) |
2788 | return -EINVAL; | |
15dfbd6b | 2789 | |
fbf46860 | 2790 | switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) { |
436f2ad0 | 2791 | case IB_FLOW_SPEC_ETH: |
15dfbd6b MG |
2792 | ib_filter_sz = offsetof(struct ib_flow_eth_filter, real_sz); |
2793 | actual_filter_sz = spec_filter_size(kern_spec_mask, | |
2794 | kern_filter_sz, | |
2795 | ib_filter_sz); | |
2796 | if (actual_filter_sz <= 0) | |
436f2ad0 | 2797 | return -EINVAL; |
15dfbd6b MG |
2798 | ib_spec->size = sizeof(struct ib_flow_spec_eth); |
2799 | memcpy(&ib_spec->eth.val, kern_spec_val, actual_filter_sz); | |
2800 | memcpy(&ib_spec->eth.mask, kern_spec_mask, actual_filter_sz); | |
436f2ad0 HHZ |
2801 | break; |
2802 | case IB_FLOW_SPEC_IPV4: | |
15dfbd6b MG |
2803 | ib_filter_sz = offsetof(struct ib_flow_ipv4_filter, real_sz); |
2804 | actual_filter_sz = spec_filter_size(kern_spec_mask, | |
2805 | kern_filter_sz, | |
2806 | ib_filter_sz); | |
2807 | if (actual_filter_sz <= 0) | |
436f2ad0 | 2808 | return -EINVAL; |
15dfbd6b MG |
2809 | ib_spec->size = sizeof(struct ib_flow_spec_ipv4); |
2810 | memcpy(&ib_spec->ipv4.val, kern_spec_val, actual_filter_sz); | |
2811 | memcpy(&ib_spec->ipv4.mask, kern_spec_mask, actual_filter_sz); | |
436f2ad0 | 2812 | break; |
4c2aae71 | 2813 | case IB_FLOW_SPEC_IPV6: |
15dfbd6b MG |
2814 | ib_filter_sz = offsetof(struct ib_flow_ipv6_filter, real_sz); |
2815 | actual_filter_sz = spec_filter_size(kern_spec_mask, | |
2816 | kern_filter_sz, | |
2817 | ib_filter_sz); | |
2818 | if (actual_filter_sz <= 0) | |
4c2aae71 | 2819 | return -EINVAL; |
15dfbd6b MG |
2820 | ib_spec->size = sizeof(struct ib_flow_spec_ipv6); |
2821 | memcpy(&ib_spec->ipv6.val, kern_spec_val, actual_filter_sz); | |
2822 | memcpy(&ib_spec->ipv6.mask, kern_spec_mask, actual_filter_sz); | |
a72c6a2b MG |
2823 | |
2824 | if ((ntohl(ib_spec->ipv6.mask.flow_label)) >= BIT(20) || | |
2825 | (ntohl(ib_spec->ipv6.val.flow_label)) >= BIT(20)) | |
2826 | return -EINVAL; | |
4c2aae71 | 2827 | break; |
436f2ad0 HHZ |
2828 | case IB_FLOW_SPEC_TCP: |
2829 | case IB_FLOW_SPEC_UDP: | |
15dfbd6b MG |
2830 | ib_filter_sz = offsetof(struct ib_flow_tcp_udp_filter, real_sz); |
2831 | actual_filter_sz = spec_filter_size(kern_spec_mask, | |
2832 | kern_filter_sz, | |
2833 | ib_filter_sz); | |
2834 | if (actual_filter_sz <= 0) | |
436f2ad0 | 2835 | return -EINVAL; |
15dfbd6b MG |
2836 | ib_spec->size = sizeof(struct ib_flow_spec_tcp_udp); |
2837 | memcpy(&ib_spec->tcp_udp.val, kern_spec_val, actual_filter_sz); | |
2838 | memcpy(&ib_spec->tcp_udp.mask, kern_spec_mask, actual_filter_sz); | |
436f2ad0 | 2839 | break; |
0dbf3332 MR |
2840 | case IB_FLOW_SPEC_VXLAN_TUNNEL: |
2841 | ib_filter_sz = offsetof(struct ib_flow_tunnel_filter, real_sz); | |
2842 | actual_filter_sz = spec_filter_size(kern_spec_mask, | |
2843 | kern_filter_sz, | |
2844 | ib_filter_sz); | |
2845 | if (actual_filter_sz <= 0) | |
2846 | return -EINVAL; | |
2847 | ib_spec->tunnel.size = sizeof(struct ib_flow_spec_tunnel); | |
2848 | memcpy(&ib_spec->tunnel.val, kern_spec_val, actual_filter_sz); | |
2849 | memcpy(&ib_spec->tunnel.mask, kern_spec_mask, actual_filter_sz); | |
2850 | ||
2851 | if ((ntohl(ib_spec->tunnel.mask.tunnel_id)) >= BIT(24) || | |
2852 | (ntohl(ib_spec->tunnel.val.tunnel_id)) >= BIT(24)) | |
2853 | return -EINVAL; | |
2854 | break; | |
436f2ad0 HHZ |
2855 | default: |
2856 | return -EINVAL; | |
2857 | } | |
2858 | return 0; | |
2859 | } | |
2860 | ||
94e03f11 MR |
2861 | static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec, |
2862 | union ib_flow_spec *ib_spec) | |
2863 | { | |
2864 | if (kern_spec->reserved) | |
2865 | return -EINVAL; | |
2866 | ||
2867 | if (kern_spec->type >= IB_FLOW_SPEC_ACTION_TAG) | |
2868 | return kern_spec_to_ib_spec_action(kern_spec, ib_spec); | |
2869 | else | |
2870 | return kern_spec_to_ib_spec_filter(kern_spec, ib_spec); | |
2871 | } | |
2872 | ||
f213c052 YH |
2873 | int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file, |
2874 | struct ib_device *ib_dev, | |
2875 | struct ib_udata *ucore, | |
2876 | struct ib_udata *uhw) | |
2877 | { | |
2878 | struct ib_uverbs_ex_create_wq cmd = {}; | |
2879 | struct ib_uverbs_ex_create_wq_resp resp = {}; | |
2880 | struct ib_uwq_object *obj; | |
2881 | int err = 0; | |
2882 | struct ib_cq *cq; | |
2883 | struct ib_pd *pd; | |
2884 | struct ib_wq *wq; | |
2885 | struct ib_wq_init_attr wq_init_attr = {}; | |
2886 | size_t required_cmd_sz; | |
2887 | size_t required_resp_len; | |
2888 | ||
2889 | required_cmd_sz = offsetof(typeof(cmd), max_sge) + sizeof(cmd.max_sge); | |
2890 | required_resp_len = offsetof(typeof(resp), wqn) + sizeof(resp.wqn); | |
2891 | ||
2892 | if (ucore->inlen < required_cmd_sz) | |
2893 | return -EINVAL; | |
2894 | ||
2895 | if (ucore->outlen < required_resp_len) | |
2896 | return -ENOSPC; | |
2897 | ||
2898 | if (ucore->inlen > sizeof(cmd) && | |
2899 | !ib_is_udata_cleared(ucore, sizeof(cmd), | |
2900 | ucore->inlen - sizeof(cmd))) | |
2901 | return -EOPNOTSUPP; | |
2902 | ||
2903 | err = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); | |
2904 | if (err) | |
2905 | return err; | |
2906 | ||
2907 | if (cmd.comp_mask) | |
2908 | return -EOPNOTSUPP; | |
2909 | ||
fd3c7904 MB |
2910 | obj = (struct ib_uwq_object *)uobj_alloc(uobj_get_type(wq), |
2911 | file->ucontext); | |
2912 | if (IS_ERR(obj)) | |
2913 | return PTR_ERR(obj); | |
f213c052 | 2914 | |
fd3c7904 | 2915 | pd = uobj_get_obj_read(pd, cmd.pd_handle, file->ucontext); |
f213c052 YH |
2916 | if (!pd) { |
2917 | err = -EINVAL; | |
2918 | goto err_uobj; | |
2919 | } | |
2920 | ||
fd3c7904 | 2921 | cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext); |
f213c052 YH |
2922 | if (!cq) { |
2923 | err = -EINVAL; | |
2924 | goto err_put_pd; | |
2925 | } | |
2926 | ||
2927 | wq_init_attr.cq = cq; | |
2928 | wq_init_attr.max_sge = cmd.max_sge; | |
2929 | wq_init_attr.max_wr = cmd.max_wr; | |
2930 | wq_init_attr.wq_context = file; | |
2931 | wq_init_attr.wq_type = cmd.wq_type; | |
2932 | wq_init_attr.event_handler = ib_uverbs_wq_event_handler; | |
af1cb95d NO |
2933 | if (ucore->inlen >= (offsetof(typeof(cmd), create_flags) + |
2934 | sizeof(cmd.create_flags))) | |
2935 | wq_init_attr.create_flags = cmd.create_flags; | |
f213c052 YH |
2936 | obj->uevent.events_reported = 0; |
2937 | INIT_LIST_HEAD(&obj->uevent.event_list); | |
2938 | wq = pd->device->create_wq(pd, &wq_init_attr, uhw); | |
2939 | if (IS_ERR(wq)) { | |
2940 | err = PTR_ERR(wq); | |
2941 | goto err_put_cq; | |
2942 | } | |
2943 | ||
2944 | wq->uobject = &obj->uevent.uobject; | |
2945 | obj->uevent.uobject.object = wq; | |
2946 | wq->wq_type = wq_init_attr.wq_type; | |
2947 | wq->cq = cq; | |
2948 | wq->pd = pd; | |
2949 | wq->device = pd->device; | |
2950 | wq->wq_context = wq_init_attr.wq_context; | |
2951 | atomic_set(&wq->usecnt, 0); | |
2952 | atomic_inc(&pd->usecnt); | |
2953 | atomic_inc(&cq->usecnt); | |
2954 | wq->uobject = &obj->uevent.uobject; | |
2955 | obj->uevent.uobject.object = wq; | |
f213c052 YH |
2956 | |
2957 | memset(&resp, 0, sizeof(resp)); | |
2958 | resp.wq_handle = obj->uevent.uobject.id; | |
2959 | resp.max_sge = wq_init_attr.max_sge; | |
2960 | resp.max_wr = wq_init_attr.max_wr; | |
2961 | resp.wqn = wq->wq_num; | |
2962 | resp.response_length = required_resp_len; | |
2963 | err = ib_copy_to_udata(ucore, | |
2964 | &resp, resp.response_length); | |
2965 | if (err) | |
2966 | goto err_copy; | |
2967 | ||
fd3c7904 MB |
2968 | uobj_put_obj_read(pd); |
2969 | uobj_put_obj_read(cq); | |
2970 | uobj_alloc_commit(&obj->uevent.uobject); | |
f213c052 YH |
2971 | return 0; |
2972 | ||
2973 | err_copy: | |
f213c052 YH |
2974 | ib_destroy_wq(wq); |
2975 | err_put_cq: | |
fd3c7904 | 2976 | uobj_put_obj_read(cq); |
f213c052 | 2977 | err_put_pd: |
fd3c7904 | 2978 | uobj_put_obj_read(pd); |
f213c052 | 2979 | err_uobj: |
fd3c7904 | 2980 | uobj_alloc_abort(&obj->uevent.uobject); |
f213c052 YH |
2981 | |
2982 | return err; | |
2983 | } | |
2984 | ||
2985 | int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file *file, | |
2986 | struct ib_device *ib_dev, | |
2987 | struct ib_udata *ucore, | |
2988 | struct ib_udata *uhw) | |
2989 | { | |
2990 | struct ib_uverbs_ex_destroy_wq cmd = {}; | |
2991 | struct ib_uverbs_ex_destroy_wq_resp resp = {}; | |
f213c052 YH |
2992 | struct ib_uobject *uobj; |
2993 | struct ib_uwq_object *obj; | |
2994 | size_t required_cmd_sz; | |
2995 | size_t required_resp_len; | |
2996 | int ret; | |
2997 | ||
2998 | required_cmd_sz = offsetof(typeof(cmd), wq_handle) + sizeof(cmd.wq_handle); | |
2999 | required_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved); | |
3000 | ||
3001 | if (ucore->inlen < required_cmd_sz) | |
3002 | return -EINVAL; | |
3003 | ||
3004 | if (ucore->outlen < required_resp_len) | |
3005 | return -ENOSPC; | |
3006 | ||
3007 | if (ucore->inlen > sizeof(cmd) && | |
3008 | !ib_is_udata_cleared(ucore, sizeof(cmd), | |
3009 | ucore->inlen - sizeof(cmd))) | |
3010 | return -EOPNOTSUPP; | |
3011 | ||
3012 | ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); | |
3013 | if (ret) | |
3014 | return ret; | |
3015 | ||
3016 | if (cmd.comp_mask) | |
3017 | return -EOPNOTSUPP; | |
3018 | ||
3019 | resp.response_length = required_resp_len; | |
fd3c7904 MB |
3020 | uobj = uobj_get_write(uobj_get_type(wq), cmd.wq_handle, |
3021 | file->ucontext); | |
3022 | if (IS_ERR(uobj)) | |
3023 | return PTR_ERR(uobj); | |
f213c052 | 3024 | |
f213c052 | 3025 | obj = container_of(uobj, struct ib_uwq_object, uevent.uobject); |
fd3c7904 MB |
3026 | /* |
3027 | * Make sure we don't free the memory in remove_commit as we still | |
3028 | * needs the uobject memory to create the response. | |
3029 | */ | |
3030 | uverbs_uobject_get(uobj); | |
f213c052 | 3031 | |
fd3c7904 | 3032 | ret = uobj_remove_commit(uobj); |
f213c052 | 3033 | resp.events_reported = obj->uevent.events_reported; |
fd3c7904 | 3034 | uverbs_uobject_put(uobj); |
f213c052 YH |
3035 | if (ret) |
3036 | return ret; | |
3037 | ||
c52d8114 | 3038 | return ib_copy_to_udata(ucore, &resp, resp.response_length); |
f213c052 YH |
3039 | } |
3040 | ||
3041 | int ib_uverbs_ex_modify_wq(struct ib_uverbs_file *file, | |
3042 | struct ib_device *ib_dev, | |
3043 | struct ib_udata *ucore, | |
3044 | struct ib_udata *uhw) | |
3045 | { | |
3046 | struct ib_uverbs_ex_modify_wq cmd = {}; | |
3047 | struct ib_wq *wq; | |
3048 | struct ib_wq_attr wq_attr = {}; | |
3049 | size_t required_cmd_sz; | |
3050 | int ret; | |
3051 | ||
3052 | required_cmd_sz = offsetof(typeof(cmd), curr_wq_state) + sizeof(cmd.curr_wq_state); | |
3053 | if (ucore->inlen < required_cmd_sz) | |
3054 | return -EINVAL; | |
3055 | ||
3056 | if (ucore->inlen > sizeof(cmd) && | |
3057 | !ib_is_udata_cleared(ucore, sizeof(cmd), | |
3058 | ucore->inlen - sizeof(cmd))) | |
3059 | return -EOPNOTSUPP; | |
3060 | ||
3061 | ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); | |
3062 | if (ret) | |
3063 | return ret; | |
3064 | ||
3065 | if (!cmd.attr_mask) | |
3066 | return -EINVAL; | |
3067 | ||
af1cb95d | 3068 | if (cmd.attr_mask > (IB_WQ_STATE | IB_WQ_CUR_STATE | IB_WQ_FLAGS)) |
f213c052 YH |
3069 | return -EINVAL; |
3070 | ||
fd3c7904 | 3071 | wq = uobj_get_obj_read(wq, cmd.wq_handle, file->ucontext); |
f213c052 YH |
3072 | if (!wq) |
3073 | return -EINVAL; | |
3074 | ||
3075 | wq_attr.curr_wq_state = cmd.curr_wq_state; | |
3076 | wq_attr.wq_state = cmd.wq_state; | |
af1cb95d NO |
3077 | if (cmd.attr_mask & IB_WQ_FLAGS) { |
3078 | wq_attr.flags = cmd.flags; | |
3079 | wq_attr.flags_mask = cmd.flags_mask; | |
3080 | } | |
f213c052 | 3081 | ret = wq->device->modify_wq(wq, &wq_attr, cmd.attr_mask, uhw); |
fd3c7904 | 3082 | uobj_put_obj_read(wq); |
f213c052 YH |
3083 | return ret; |
3084 | } | |
3085 | ||
de019a94 YH |
3086 | int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, |
3087 | struct ib_device *ib_dev, | |
3088 | struct ib_udata *ucore, | |
3089 | struct ib_udata *uhw) | |
3090 | { | |
3091 | struct ib_uverbs_ex_create_rwq_ind_table cmd = {}; | |
3092 | struct ib_uverbs_ex_create_rwq_ind_table_resp resp = {}; | |
3093 | struct ib_uobject *uobj; | |
3094 | int err = 0; | |
3095 | struct ib_rwq_ind_table_init_attr init_attr = {}; | |
3096 | struct ib_rwq_ind_table *rwq_ind_tbl; | |
3097 | struct ib_wq **wqs = NULL; | |
3098 | u32 *wqs_handles = NULL; | |
3099 | struct ib_wq *wq = NULL; | |
3100 | int i, j, num_read_wqs; | |
3101 | u32 num_wq_handles; | |
3102 | u32 expected_in_size; | |
3103 | size_t required_cmd_sz_header; | |
3104 | size_t required_resp_len; | |
3105 | ||
3106 | required_cmd_sz_header = offsetof(typeof(cmd), log_ind_tbl_size) + sizeof(cmd.log_ind_tbl_size); | |
3107 | required_resp_len = offsetof(typeof(resp), ind_tbl_num) + sizeof(resp.ind_tbl_num); | |
3108 | ||
3109 | if (ucore->inlen < required_cmd_sz_header) | |
3110 | return -EINVAL; | |
3111 | ||
3112 | if (ucore->outlen < required_resp_len) | |
3113 | return -ENOSPC; | |
3114 | ||
3115 | err = ib_copy_from_udata(&cmd, ucore, required_cmd_sz_header); | |
3116 | if (err) | |
3117 | return err; | |
3118 | ||
3119 | ucore->inbuf += required_cmd_sz_header; | |
3120 | ucore->inlen -= required_cmd_sz_header; | |
3121 | ||
3122 | if (cmd.comp_mask) | |
3123 | return -EOPNOTSUPP; | |
3124 | ||
3125 | if (cmd.log_ind_tbl_size > IB_USER_VERBS_MAX_LOG_IND_TBL_SIZE) | |
3126 | return -EINVAL; | |
3127 | ||
3128 | num_wq_handles = 1 << cmd.log_ind_tbl_size; | |
3129 | expected_in_size = num_wq_handles * sizeof(__u32); | |
3130 | if (num_wq_handles == 1) | |
3131 | /* input size for wq handles is u64 aligned */ | |
3132 | expected_in_size += sizeof(__u32); | |
3133 | ||
3134 | if (ucore->inlen < expected_in_size) | |
3135 | return -EINVAL; | |
3136 | ||
3137 | if (ucore->inlen > expected_in_size && | |
3138 | !ib_is_udata_cleared(ucore, expected_in_size, | |
3139 | ucore->inlen - expected_in_size)) | |
3140 | return -EOPNOTSUPP; | |
3141 | ||
3142 | wqs_handles = kcalloc(num_wq_handles, sizeof(*wqs_handles), | |
3143 | GFP_KERNEL); | |
3144 | if (!wqs_handles) | |
3145 | return -ENOMEM; | |
3146 | ||
3147 | err = ib_copy_from_udata(wqs_handles, ucore, | |
3148 | num_wq_handles * sizeof(__u32)); | |
3149 | if (err) | |
3150 | goto err_free; | |
3151 | ||
3152 | wqs = kcalloc(num_wq_handles, sizeof(*wqs), GFP_KERNEL); | |
3153 | if (!wqs) { | |
3154 | err = -ENOMEM; | |
3155 | goto err_free; | |
3156 | } | |
3157 | ||
3158 | for (num_read_wqs = 0; num_read_wqs < num_wq_handles; | |
3159 | num_read_wqs++) { | |
fd3c7904 MB |
3160 | wq = uobj_get_obj_read(wq, wqs_handles[num_read_wqs], |
3161 | file->ucontext); | |
de019a94 YH |
3162 | if (!wq) { |
3163 | err = -EINVAL; | |
3164 | goto put_wqs; | |
3165 | } | |
3166 | ||
3167 | wqs[num_read_wqs] = wq; | |
3168 | } | |
3169 | ||
fd3c7904 MB |
3170 | uobj = uobj_alloc(uobj_get_type(rwq_ind_table), file->ucontext); |
3171 | if (IS_ERR(uobj)) { | |
3172 | err = PTR_ERR(uobj); | |
de019a94 YH |
3173 | goto put_wqs; |
3174 | } | |
3175 | ||
de019a94 YH |
3176 | init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size; |
3177 | init_attr.ind_tbl = wqs; | |
3178 | rwq_ind_tbl = ib_dev->create_rwq_ind_table(ib_dev, &init_attr, uhw); | |
3179 | ||
3180 | if (IS_ERR(rwq_ind_tbl)) { | |
3181 | err = PTR_ERR(rwq_ind_tbl); | |
3182 | goto err_uobj; | |
3183 | } | |
3184 | ||
3185 | rwq_ind_tbl->ind_tbl = wqs; | |
3186 | rwq_ind_tbl->log_ind_tbl_size = init_attr.log_ind_tbl_size; | |
3187 | rwq_ind_tbl->uobject = uobj; | |
3188 | uobj->object = rwq_ind_tbl; | |
3189 | rwq_ind_tbl->device = ib_dev; | |
3190 | atomic_set(&rwq_ind_tbl->usecnt, 0); | |
3191 | ||
3192 | for (i = 0; i < num_wq_handles; i++) | |
3193 | atomic_inc(&wqs[i]->usecnt); | |
3194 | ||
de019a94 YH |
3195 | resp.ind_tbl_handle = uobj->id; |
3196 | resp.ind_tbl_num = rwq_ind_tbl->ind_tbl_num; | |
3197 | resp.response_length = required_resp_len; | |
3198 | ||
3199 | err = ib_copy_to_udata(ucore, | |
3200 | &resp, resp.response_length); | |
3201 | if (err) | |
3202 | goto err_copy; | |
3203 | ||
3204 | kfree(wqs_handles); | |
3205 | ||
3206 | for (j = 0; j < num_read_wqs; j++) | |
fd3c7904 | 3207 | uobj_put_obj_read(wqs[j]); |
de019a94 | 3208 | |
fd3c7904 | 3209 | uobj_alloc_commit(uobj); |
de019a94 YH |
3210 | return 0; |
3211 | ||
3212 | err_copy: | |
de019a94 YH |
3213 | ib_destroy_rwq_ind_table(rwq_ind_tbl); |
3214 | err_uobj: | |
fd3c7904 | 3215 | uobj_alloc_abort(uobj); |
de019a94 YH |
3216 | put_wqs: |
3217 | for (j = 0; j < num_read_wqs; j++) | |
fd3c7904 | 3218 | uobj_put_obj_read(wqs[j]); |
de019a94 YH |
3219 | err_free: |
3220 | kfree(wqs_handles); | |
3221 | kfree(wqs); | |
3222 | return err; | |
3223 | } | |
3224 | ||
3225 | int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file *file, | |
3226 | struct ib_device *ib_dev, | |
3227 | struct ib_udata *ucore, | |
3228 | struct ib_udata *uhw) | |
3229 | { | |
3230 | struct ib_uverbs_ex_destroy_rwq_ind_table cmd = {}; | |
de019a94 YH |
3231 | struct ib_uobject *uobj; |
3232 | int ret; | |
de019a94 YH |
3233 | size_t required_cmd_sz; |
3234 | ||
3235 | required_cmd_sz = offsetof(typeof(cmd), ind_tbl_handle) + sizeof(cmd.ind_tbl_handle); | |
3236 | ||
3237 | if (ucore->inlen < required_cmd_sz) | |
3238 | return -EINVAL; | |
3239 | ||
3240 | if (ucore->inlen > sizeof(cmd) && | |
3241 | !ib_is_udata_cleared(ucore, sizeof(cmd), | |
3242 | ucore->inlen - sizeof(cmd))) | |
3243 | return -EOPNOTSUPP; | |
3244 | ||
3245 | ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); | |
3246 | if (ret) | |
3247 | return ret; | |
3248 | ||
3249 | if (cmd.comp_mask) | |
3250 | return -EOPNOTSUPP; | |
3251 | ||
fd3c7904 MB |
3252 | uobj = uobj_get_write(uobj_get_type(rwq_ind_table), cmd.ind_tbl_handle, |
3253 | file->ucontext); | |
3254 | if (IS_ERR(uobj)) | |
3255 | return PTR_ERR(uobj); | |
de019a94 | 3256 | |
fd3c7904 | 3257 | return uobj_remove_commit(uobj); |
de019a94 YH |
3258 | } |
3259 | ||
f21519b2 | 3260 | int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, |
057aec0d | 3261 | struct ib_device *ib_dev, |
f21519b2 YD |
3262 | struct ib_udata *ucore, |
3263 | struct ib_udata *uhw) | |
436f2ad0 HHZ |
3264 | { |
3265 | struct ib_uverbs_create_flow cmd; | |
3266 | struct ib_uverbs_create_flow_resp resp; | |
3267 | struct ib_uobject *uobj; | |
3268 | struct ib_flow *flow_id; | |
d82693da | 3269 | struct ib_uverbs_flow_attr *kern_flow_attr; |
436f2ad0 HHZ |
3270 | struct ib_flow_attr *flow_attr; |
3271 | struct ib_qp *qp; | |
3272 | int err = 0; | |
3273 | void *kern_spec; | |
3274 | void *ib_spec; | |
3275 | int i; | |
436f2ad0 | 3276 | |
6bcca3d4 YD |
3277 | if (ucore->inlen < sizeof(cmd)) |
3278 | return -EINVAL; | |
3279 | ||
f21519b2 | 3280 | if (ucore->outlen < sizeof(resp)) |
436f2ad0 HHZ |
3281 | return -ENOSPC; |
3282 | ||
f21519b2 YD |
3283 | err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); |
3284 | if (err) | |
3285 | return err; | |
3286 | ||
3287 | ucore->inbuf += sizeof(cmd); | |
3288 | ucore->inlen -= sizeof(cmd); | |
436f2ad0 | 3289 | |
22878dbc MB |
3290 | if (cmd.comp_mask) |
3291 | return -EINVAL; | |
3292 | ||
e3b6d8cf | 3293 | if (!capable(CAP_NET_RAW)) |
436f2ad0 HHZ |
3294 | return -EPERM; |
3295 | ||
a3100a78 MV |
3296 | if (cmd.flow_attr.flags >= IB_FLOW_ATTR_FLAGS_RESERVED) |
3297 | return -EINVAL; | |
3298 | ||
3299 | if ((cmd.flow_attr.flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) && | |
3300 | ((cmd.flow_attr.type == IB_FLOW_ATTR_ALL_DEFAULT) || | |
3301 | (cmd.flow_attr.type == IB_FLOW_ATTR_MC_DEFAULT))) | |
3302 | return -EINVAL; | |
3303 | ||
f8848274 | 3304 | if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS) |
22878dbc MB |
3305 | return -EINVAL; |
3306 | ||
f21519b2 | 3307 | if (cmd.flow_attr.size > ucore->inlen || |
f8848274 | 3308 | cmd.flow_attr.size > |
b68c9560 | 3309 | (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec))) |
22878dbc MB |
3310 | return -EINVAL; |
3311 | ||
c780d82a YD |
3312 | if (cmd.flow_attr.reserved[0] || |
3313 | cmd.flow_attr.reserved[1]) | |
3314 | return -EINVAL; | |
3315 | ||
436f2ad0 | 3316 | if (cmd.flow_attr.num_of_specs) { |
f8848274 MB |
3317 | kern_flow_attr = kmalloc(sizeof(*kern_flow_attr) + cmd.flow_attr.size, |
3318 | GFP_KERNEL); | |
436f2ad0 HHZ |
3319 | if (!kern_flow_attr) |
3320 | return -ENOMEM; | |
3321 | ||
3322 | memcpy(kern_flow_attr, &cmd.flow_attr, sizeof(*kern_flow_attr)); | |
f21519b2 YD |
3323 | err = ib_copy_from_udata(kern_flow_attr + 1, ucore, |
3324 | cmd.flow_attr.size); | |
3325 | if (err) | |
436f2ad0 | 3326 | goto err_free_attr; |
436f2ad0 HHZ |
3327 | } else { |
3328 | kern_flow_attr = &cmd.flow_attr; | |
436f2ad0 HHZ |
3329 | } |
3330 | ||
fd3c7904 MB |
3331 | uobj = uobj_alloc(uobj_get_type(flow), file->ucontext); |
3332 | if (IS_ERR(uobj)) { | |
3333 | err = PTR_ERR(uobj); | |
436f2ad0 HHZ |
3334 | goto err_free_attr; |
3335 | } | |
436f2ad0 | 3336 | |
fd3c7904 | 3337 | qp = uobj_get_obj_read(qp, cmd.qp_handle, file->ucontext); |
436f2ad0 HHZ |
3338 | if (!qp) { |
3339 | err = -EINVAL; | |
3340 | goto err_uobj; | |
3341 | } | |
3342 | ||
15dfbd6b MG |
3343 | flow_attr = kzalloc(sizeof(*flow_attr) + cmd.flow_attr.num_of_specs * |
3344 | sizeof(union ib_flow_spec), GFP_KERNEL); | |
436f2ad0 HHZ |
3345 | if (!flow_attr) { |
3346 | err = -ENOMEM; | |
3347 | goto err_put; | |
3348 | } | |
3349 | ||
3350 | flow_attr->type = kern_flow_attr->type; | |
3351 | flow_attr->priority = kern_flow_attr->priority; | |
3352 | flow_attr->num_of_specs = kern_flow_attr->num_of_specs; | |
3353 | flow_attr->port = kern_flow_attr->port; | |
3354 | flow_attr->flags = kern_flow_attr->flags; | |
3355 | flow_attr->size = sizeof(*flow_attr); | |
3356 | ||
3357 | kern_spec = kern_flow_attr + 1; | |
3358 | ib_spec = flow_attr + 1; | |
f8848274 | 3359 | for (i = 0; i < flow_attr->num_of_specs && |
b68c9560 | 3360 | cmd.flow_attr.size > offsetof(struct ib_uverbs_flow_spec, reserved) && |
f8848274 | 3361 | cmd.flow_attr.size >= |
b68c9560 | 3362 | ((struct ib_uverbs_flow_spec *)kern_spec)->size; i++) { |
436f2ad0 HHZ |
3363 | err = kern_spec_to_ib_spec(kern_spec, ib_spec); |
3364 | if (err) | |
3365 | goto err_free; | |
3366 | flow_attr->size += | |
3367 | ((union ib_flow_spec *) ib_spec)->size; | |
b68c9560 YD |
3368 | cmd.flow_attr.size -= ((struct ib_uverbs_flow_spec *)kern_spec)->size; |
3369 | kern_spec += ((struct ib_uverbs_flow_spec *) kern_spec)->size; | |
436f2ad0 HHZ |
3370 | ib_spec += ((union ib_flow_spec *) ib_spec)->size; |
3371 | } | |
f8848274 MB |
3372 | if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) { |
3373 | pr_warn("create flow failed, flow %d: %d bytes left from uverb cmd\n", | |
3374 | i, cmd.flow_attr.size); | |
98a37510 | 3375 | err = -EINVAL; |
436f2ad0 HHZ |
3376 | goto err_free; |
3377 | } | |
3378 | flow_id = ib_create_flow(qp, flow_attr, IB_FLOW_DOMAIN_USER); | |
3379 | if (IS_ERR(flow_id)) { | |
3380 | err = PTR_ERR(flow_id); | |
fd3c7904 | 3381 | goto err_free; |
436f2ad0 | 3382 | } |
436f2ad0 HHZ |
3383 | flow_id->uobject = uobj; |
3384 | uobj->object = flow_id; | |
3385 | ||
436f2ad0 HHZ |
3386 | memset(&resp, 0, sizeof(resp)); |
3387 | resp.flow_handle = uobj->id; | |
3388 | ||
f21519b2 YD |
3389 | err = ib_copy_to_udata(ucore, |
3390 | &resp, sizeof(resp)); | |
3391 | if (err) | |
436f2ad0 | 3392 | goto err_copy; |
436f2ad0 | 3393 | |
fd3c7904 MB |
3394 | uobj_put_obj_read(qp); |
3395 | uobj_alloc_commit(uobj); | |
436f2ad0 HHZ |
3396 | kfree(flow_attr); |
3397 | if (cmd.flow_attr.num_of_specs) | |
3398 | kfree(kern_flow_attr); | |
f21519b2 | 3399 | return 0; |
436f2ad0 | 3400 | err_copy: |
436f2ad0 HHZ |
3401 | ib_destroy_flow(flow_id); |
3402 | err_free: | |
3403 | kfree(flow_attr); | |
3404 | err_put: | |
fd3c7904 | 3405 | uobj_put_obj_read(qp); |
436f2ad0 | 3406 | err_uobj: |
fd3c7904 | 3407 | uobj_alloc_abort(uobj); |
436f2ad0 HHZ |
3408 | err_free_attr: |
3409 | if (cmd.flow_attr.num_of_specs) | |
3410 | kfree(kern_flow_attr); | |
3411 | return err; | |
3412 | } | |
3413 | ||
f21519b2 | 3414 | int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, |
057aec0d | 3415 | struct ib_device *ib_dev, |
f21519b2 YD |
3416 | struct ib_udata *ucore, |
3417 | struct ib_udata *uhw) | |
3418 | { | |
436f2ad0 | 3419 | struct ib_uverbs_destroy_flow cmd; |
436f2ad0 HHZ |
3420 | struct ib_uobject *uobj; |
3421 | int ret; | |
3422 | ||
6bcca3d4 YD |
3423 | if (ucore->inlen < sizeof(cmd)) |
3424 | return -EINVAL; | |
3425 | ||
f21519b2 YD |
3426 | ret = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); |
3427 | if (ret) | |
3428 | return ret; | |
436f2ad0 | 3429 | |
2782c2d3 YD |
3430 | if (cmd.comp_mask) |
3431 | return -EINVAL; | |
3432 | ||
fd3c7904 MB |
3433 | uobj = uobj_get_write(uobj_get_type(flow), cmd.flow_handle, |
3434 | file->ucontext); | |
3435 | if (IS_ERR(uobj)) | |
3436 | return PTR_ERR(uobj); | |
436f2ad0 | 3437 | |
fd3c7904 | 3438 | ret = uobj_remove_commit(uobj); |
f21519b2 | 3439 | return ret; |
436f2ad0 HHZ |
3440 | } |
3441 | ||
c89d1bed | 3442 | static int __uverbs_create_xsrq(struct ib_uverbs_file *file, |
057aec0d | 3443 | struct ib_device *ib_dev, |
c89d1bed SH |
3444 | struct ib_uverbs_create_xsrq *cmd, |
3445 | struct ib_udata *udata) | |
f520ba5a | 3446 | { |
f520ba5a | 3447 | struct ib_uverbs_create_srq_resp resp; |
8541f8de | 3448 | struct ib_usrq_object *obj; |
f520ba5a RD |
3449 | struct ib_pd *pd; |
3450 | struct ib_srq *srq; | |
8541f8de | 3451 | struct ib_uobject *uninitialized_var(xrcd_uobj); |
f520ba5a RD |
3452 | struct ib_srq_init_attr attr; |
3453 | int ret; | |
3454 | ||
fd3c7904 MB |
3455 | obj = (struct ib_usrq_object *)uobj_alloc(uobj_get_type(srq), |
3456 | file->ucontext); | |
3457 | if (IS_ERR(obj)) | |
3458 | return PTR_ERR(obj); | |
f520ba5a | 3459 | |
38eb44fa AK |
3460 | if (cmd->srq_type == IB_SRQT_TM) |
3461 | attr.ext.tag_matching.max_num_tags = cmd->max_num_tags; | |
3462 | ||
8541f8de | 3463 | if (cmd->srq_type == IB_SRQT_XRC) { |
fd3c7904 MB |
3464 | xrcd_uobj = uobj_get_read(uobj_get_type(xrcd), cmd->xrcd_handle, |
3465 | file->ucontext); | |
3466 | if (IS_ERR(xrcd_uobj)) { | |
8541f8de | 3467 | ret = -EINVAL; |
5909ce54 | 3468 | goto err; |
8541f8de SH |
3469 | } |
3470 | ||
fd3c7904 MB |
3471 | attr.ext.xrc.xrcd = (struct ib_xrcd *)xrcd_uobj->object; |
3472 | if (!attr.ext.xrc.xrcd) { | |
3473 | ret = -EINVAL; | |
3474 | goto err_put_xrcd; | |
3475 | } | |
3476 | ||
8541f8de SH |
3477 | obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject); |
3478 | atomic_inc(&obj->uxrcd->refcnt); | |
1a56ff6d | 3479 | } |
5909ce54 | 3480 | |
1a56ff6d AK |
3481 | if (ib_srq_has_cq(cmd->srq_type)) { |
3482 | attr.ext.cq = uobj_get_obj_read(cq, cmd->cq_handle, | |
3483 | file->ucontext); | |
3484 | if (!attr.ext.cq) { | |
5909ce54 RD |
3485 | ret = -EINVAL; |
3486 | goto err_put_xrcd; | |
3487 | } | |
3488 | } | |
3489 | ||
fd3c7904 | 3490 | pd = uobj_get_obj_read(pd, cmd->pd_handle, file->ucontext); |
5909ce54 RD |
3491 | if (!pd) { |
3492 | ret = -EINVAL; | |
3493 | goto err_put_cq; | |
8541f8de SH |
3494 | } |
3495 | ||
f520ba5a RD |
3496 | attr.event_handler = ib_uverbs_srq_event_handler; |
3497 | attr.srq_context = file; | |
8541f8de SH |
3498 | attr.srq_type = cmd->srq_type; |
3499 | attr.attr.max_wr = cmd->max_wr; | |
3500 | attr.attr.max_sge = cmd->max_sge; | |
3501 | attr.attr.srq_limit = cmd->srq_limit; | |
f520ba5a | 3502 | |
8541f8de SH |
3503 | obj->uevent.events_reported = 0; |
3504 | INIT_LIST_HEAD(&obj->uevent.event_list); | |
f520ba5a | 3505 | |
8541f8de | 3506 | srq = pd->device->create_srq(pd, &attr, udata); |
f520ba5a RD |
3507 | if (IS_ERR(srq)) { |
3508 | ret = PTR_ERR(srq); | |
ec924b47 | 3509 | goto err_put; |
f520ba5a RD |
3510 | } |
3511 | ||
8541f8de SH |
3512 | srq->device = pd->device; |
3513 | srq->pd = pd; | |
3514 | srq->srq_type = cmd->srq_type; | |
3515 | srq->uobject = &obj->uevent.uobject; | |
f520ba5a RD |
3516 | srq->event_handler = attr.event_handler; |
3517 | srq->srq_context = attr.srq_context; | |
8541f8de | 3518 | |
1a56ff6d AK |
3519 | if (ib_srq_has_cq(cmd->srq_type)) { |
3520 | srq->ext.cq = attr.ext.cq; | |
3521 | atomic_inc(&attr.ext.cq->usecnt); | |
3522 | } | |
3523 | ||
8541f8de | 3524 | if (cmd->srq_type == IB_SRQT_XRC) { |
8541f8de | 3525 | srq->ext.xrc.xrcd = attr.ext.xrc.xrcd; |
8541f8de SH |
3526 | atomic_inc(&attr.ext.xrc.xrcd->usecnt); |
3527 | } | |
3528 | ||
f520ba5a RD |
3529 | atomic_inc(&pd->usecnt); |
3530 | atomic_set(&srq->usecnt, 0); | |
3531 | ||
8541f8de | 3532 | obj->uevent.uobject.object = srq; |
fd3c7904 | 3533 | obj->uevent.uobject.user_handle = cmd->user_handle; |
f520ba5a | 3534 | |
9ead190b | 3535 | memset(&resp, 0, sizeof resp); |
8541f8de | 3536 | resp.srq_handle = obj->uevent.uobject.id; |
ea88fd16 DB |
3537 | resp.max_wr = attr.attr.max_wr; |
3538 | resp.max_sge = attr.attr.max_sge; | |
8541f8de SH |
3539 | if (cmd->srq_type == IB_SRQT_XRC) |
3540 | resp.srqn = srq->ext.xrc.srq_num; | |
f520ba5a | 3541 | |
8541f8de | 3542 | if (copy_to_user((void __user *) (unsigned long) cmd->response, |
f520ba5a RD |
3543 | &resp, sizeof resp)) { |
3544 | ret = -EFAULT; | |
9ead190b | 3545 | goto err_copy; |
f520ba5a RD |
3546 | } |
3547 | ||
1a56ff6d | 3548 | if (cmd->srq_type == IB_SRQT_XRC) |
fd3c7904 | 3549 | uobj_put_read(xrcd_uobj); |
1a56ff6d AK |
3550 | |
3551 | if (ib_srq_has_cq(cmd->srq_type)) | |
3552 | uobj_put_obj_read(attr.ext.cq); | |
3553 | ||
fd3c7904 MB |
3554 | uobj_put_obj_read(pd); |
3555 | uobj_alloc_commit(&obj->uevent.uobject); | |
f520ba5a | 3556 | |
8541f8de | 3557 | return 0; |
f520ba5a | 3558 | |
9ead190b | 3559 | err_copy: |
f520ba5a RD |
3560 | ib_destroy_srq(srq); |
3561 | ||
ec924b47 | 3562 | err_put: |
fd3c7904 | 3563 | uobj_put_obj_read(pd); |
8541f8de SH |
3564 | |
3565 | err_put_cq: | |
1a56ff6d AK |
3566 | if (ib_srq_has_cq(cmd->srq_type)) |
3567 | uobj_put_obj_read(attr.ext.cq); | |
8541f8de | 3568 | |
5909ce54 RD |
3569 | err_put_xrcd: |
3570 | if (cmd->srq_type == IB_SRQT_XRC) { | |
3571 | atomic_dec(&obj->uxrcd->refcnt); | |
fd3c7904 | 3572 | uobj_put_read(xrcd_uobj); |
5909ce54 | 3573 | } |
ec924b47 | 3574 | |
9ead190b | 3575 | err: |
fd3c7904 | 3576 | uobj_alloc_abort(&obj->uevent.uobject); |
f520ba5a RD |
3577 | return ret; |
3578 | } | |
3579 | ||
8541f8de | 3580 | ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file, |
057aec0d | 3581 | struct ib_device *ib_dev, |
8541f8de SH |
3582 | const char __user *buf, int in_len, |
3583 | int out_len) | |
3584 | { | |
3585 | struct ib_uverbs_create_srq cmd; | |
3586 | struct ib_uverbs_create_xsrq xcmd; | |
3587 | struct ib_uverbs_create_srq_resp resp; | |
3588 | struct ib_udata udata; | |
3589 | int ret; | |
3590 | ||
3591 | if (out_len < sizeof resp) | |
3592 | return -ENOSPC; | |
3593 | ||
3594 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
3595 | return -EFAULT; | |
3596 | ||
38eb44fa | 3597 | memset(&xcmd, 0, sizeof(xcmd)); |
8541f8de SH |
3598 | xcmd.response = cmd.response; |
3599 | xcmd.user_handle = cmd.user_handle; | |
3600 | xcmd.srq_type = IB_SRQT_BASIC; | |
3601 | xcmd.pd_handle = cmd.pd_handle; | |
3602 | xcmd.max_wr = cmd.max_wr; | |
3603 | xcmd.max_sge = cmd.max_sge; | |
3604 | xcmd.srq_limit = cmd.srq_limit; | |
3605 | ||
40a20339 AB |
3606 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
3607 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
3608 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
3609 | out_len - sizeof(resp)); | |
8541f8de | 3610 | |
057aec0d | 3611 | ret = __uverbs_create_xsrq(file, ib_dev, &xcmd, &udata); |
8541f8de SH |
3612 | if (ret) |
3613 | return ret; | |
3614 | ||
3615 | return in_len; | |
3616 | } | |
3617 | ||
3618 | ssize_t ib_uverbs_create_xsrq(struct ib_uverbs_file *file, | |
057aec0d | 3619 | struct ib_device *ib_dev, |
8541f8de SH |
3620 | const char __user *buf, int in_len, int out_len) |
3621 | { | |
3622 | struct ib_uverbs_create_xsrq cmd; | |
3623 | struct ib_uverbs_create_srq_resp resp; | |
3624 | struct ib_udata udata; | |
3625 | int ret; | |
3626 | ||
3627 | if (out_len < sizeof resp) | |
3628 | return -ENOSPC; | |
3629 | ||
3630 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
3631 | return -EFAULT; | |
3632 | ||
40a20339 AB |
3633 | ib_uverbs_init_udata(&udata, buf + sizeof(cmd), |
3634 | u64_to_user_ptr(cmd.response) + sizeof(resp), | |
e093111d AR |
3635 | in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), |
3636 | out_len - sizeof(resp)); | |
8541f8de | 3637 | |
057aec0d | 3638 | ret = __uverbs_create_xsrq(file, ib_dev, &cmd, &udata); |
8541f8de SH |
3639 | if (ret) |
3640 | return ret; | |
3641 | ||
3642 | return in_len; | |
3643 | } | |
3644 | ||
f520ba5a | 3645 | ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, |
057aec0d | 3646 | struct ib_device *ib_dev, |
f520ba5a RD |
3647 | const char __user *buf, int in_len, |
3648 | int out_len) | |
3649 | { | |
3650 | struct ib_uverbs_modify_srq cmd; | |
9bc57e2d | 3651 | struct ib_udata udata; |
f520ba5a RD |
3652 | struct ib_srq *srq; |
3653 | struct ib_srq_attr attr; | |
3654 | int ret; | |
3655 | ||
3656 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
3657 | return -EFAULT; | |
3658 | ||
40a20339 | 3659 | ib_uverbs_init_udata(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd, |
9bc57e2d RC |
3660 | out_len); |
3661 | ||
fd3c7904 | 3662 | srq = uobj_get_obj_read(srq, cmd.srq_handle, file->ucontext); |
9ead190b RD |
3663 | if (!srq) |
3664 | return -EINVAL; | |
f520ba5a RD |
3665 | |
3666 | attr.max_wr = cmd.max_wr; | |
f520ba5a RD |
3667 | attr.srq_limit = cmd.srq_limit; |
3668 | ||
9bc57e2d | 3669 | ret = srq->device->modify_srq(srq, &attr, cmd.attr_mask, &udata); |
f520ba5a | 3670 | |
fd3c7904 | 3671 | uobj_put_obj_read(srq); |
f520ba5a RD |
3672 | |
3673 | return ret ? ret : in_len; | |
3674 | } | |
3675 | ||
8bdb0e86 | 3676 | ssize_t ib_uverbs_query_srq(struct ib_uverbs_file *file, |
057aec0d | 3677 | struct ib_device *ib_dev, |
8bdb0e86 DB |
3678 | const char __user *buf, |
3679 | int in_len, int out_len) | |
3680 | { | |
3681 | struct ib_uverbs_query_srq cmd; | |
3682 | struct ib_uverbs_query_srq_resp resp; | |
3683 | struct ib_srq_attr attr; | |
3684 | struct ib_srq *srq; | |
3685 | int ret; | |
3686 | ||
3687 | if (out_len < sizeof resp) | |
3688 | return -ENOSPC; | |
3689 | ||
3690 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
3691 | return -EFAULT; | |
3692 | ||
fd3c7904 | 3693 | srq = uobj_get_obj_read(srq, cmd.srq_handle, file->ucontext); |
9ead190b RD |
3694 | if (!srq) |
3695 | return -EINVAL; | |
8bdb0e86 | 3696 | |
9ead190b | 3697 | ret = ib_query_srq(srq, &attr); |
8bdb0e86 | 3698 | |
fd3c7904 | 3699 | uobj_put_obj_read(srq); |
8bdb0e86 DB |
3700 | |
3701 | if (ret) | |
9ead190b | 3702 | return ret; |
8bdb0e86 DB |
3703 | |
3704 | memset(&resp, 0, sizeof resp); | |
3705 | ||
3706 | resp.max_wr = attr.max_wr; | |
3707 | resp.max_sge = attr.max_sge; | |
3708 | resp.srq_limit = attr.srq_limit; | |
3709 | ||
40a20339 | 3710 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) |
9ead190b | 3711 | return -EFAULT; |
8bdb0e86 | 3712 | |
9ead190b | 3713 | return in_len; |
8bdb0e86 DB |
3714 | } |
3715 | ||
f520ba5a | 3716 | ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, |
057aec0d | 3717 | struct ib_device *ib_dev, |
f520ba5a RD |
3718 | const char __user *buf, int in_len, |
3719 | int out_len) | |
3720 | { | |
63aaf647 RD |
3721 | struct ib_uverbs_destroy_srq cmd; |
3722 | struct ib_uverbs_destroy_srq_resp resp; | |
9ead190b | 3723 | struct ib_uobject *uobj; |
9ead190b | 3724 | struct ib_uevent_object *obj; |
63aaf647 | 3725 | int ret = -EINVAL; |
f520ba5a RD |
3726 | |
3727 | if (copy_from_user(&cmd, buf, sizeof cmd)) | |
3728 | return -EFAULT; | |
3729 | ||
fd3c7904 MB |
3730 | uobj = uobj_get_write(uobj_get_type(srq), cmd.srq_handle, |
3731 | file->ucontext); | |
3732 | if (IS_ERR(uobj)) | |
3733 | return PTR_ERR(uobj); | |
3734 | ||
9ead190b | 3735 | obj = container_of(uobj, struct ib_uevent_object, uobject); |
fd3c7904 MB |
3736 | /* |
3737 | * Make sure we don't free the memory in remove_commit as we still | |
3738 | * needs the uobject memory to create the response. | |
3739 | */ | |
3740 | uverbs_uobject_get(uobj); | |
63aaf647 | 3741 | |
fd3c7904 | 3742 | memset(&resp, 0, sizeof(resp)); |
f520ba5a | 3743 | |
fd3c7904 MB |
3744 | ret = uobj_remove_commit(uobj); |
3745 | if (ret) { | |
3746 | uverbs_uobject_put(uobj); | |
9ead190b | 3747 | return ret; |
846be90d | 3748 | } |
9ead190b | 3749 | resp.events_reported = obj->events_reported; |
fd3c7904 | 3750 | uverbs_uobject_put(uobj); |
40a20339 | 3751 | if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof(resp))) |
fd3c7904 | 3752 | return -EFAULT; |
63aaf647 | 3753 | |
fd3c7904 | 3754 | return in_len; |
f520ba5a | 3755 | } |
02d1aa7a EC |
3756 | |
3757 | int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, | |
057aec0d | 3758 | struct ib_device *ib_dev, |
02d1aa7a EC |
3759 | struct ib_udata *ucore, |
3760 | struct ib_udata *uhw) | |
3761 | { | |
2953f425 | 3762 | struct ib_uverbs_ex_query_device_resp resp = { {0} }; |
02d1aa7a | 3763 | struct ib_uverbs_ex_query_device cmd; |
2953f425 | 3764 | struct ib_device_attr attr = {0}; |
02d1aa7a EC |
3765 | int err; |
3766 | ||
02d1aa7a EC |
3767 | if (ucore->inlen < sizeof(cmd)) |
3768 | return -EINVAL; | |
3769 | ||
3770 | err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); | |
3771 | if (err) | |
3772 | return err; | |
3773 | ||
3774 | if (cmd.comp_mask) | |
3775 | return -EINVAL; | |
3776 | ||
3777 | if (cmd.reserved) | |
3778 | return -EINVAL; | |
3779 | ||
f4056bfd | 3780 | resp.response_length = offsetof(typeof(resp), odp_caps); |
02d1aa7a EC |
3781 | |
3782 | if (ucore->outlen < resp.response_length) | |
3783 | return -ENOSPC; | |
3784 | ||
057aec0d | 3785 | err = ib_dev->query_device(ib_dev, &attr, uhw); |
02d1aa7a EC |
3786 | if (err) |
3787 | return err; | |
3788 | ||
057aec0d | 3789 | copy_query_dev_fields(file, ib_dev, &resp.base, &attr); |
02d1aa7a | 3790 | |
f4056bfd HE |
3791 | if (ucore->outlen < resp.response_length + sizeof(resp.odp_caps)) |
3792 | goto end; | |
3793 | ||
3794 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING | |
3795 | resp.odp_caps.general_caps = attr.odp_caps.general_caps; | |
3796 | resp.odp_caps.per_transport_caps.rc_odp_caps = | |
3797 | attr.odp_caps.per_transport_caps.rc_odp_caps; | |
3798 | resp.odp_caps.per_transport_caps.uc_odp_caps = | |
3799 | attr.odp_caps.per_transport_caps.uc_odp_caps; | |
3800 | resp.odp_caps.per_transport_caps.ud_odp_caps = | |
3801 | attr.odp_caps.per_transport_caps.ud_odp_caps; | |
f4056bfd HE |
3802 | #endif |
3803 | resp.response_length += sizeof(resp.odp_caps); | |
3804 | ||
24306dc6 MB |
3805 | if (ucore->outlen < resp.response_length + sizeof(resp.timestamp_mask)) |
3806 | goto end; | |
3807 | ||
3808 | resp.timestamp_mask = attr.timestamp_mask; | |
3809 | resp.response_length += sizeof(resp.timestamp_mask); | |
3810 | ||
3811 | if (ucore->outlen < resp.response_length + sizeof(resp.hca_core_clock)) | |
3812 | goto end; | |
3813 | ||
3814 | resp.hca_core_clock = attr.hca_core_clock; | |
3815 | resp.response_length += sizeof(resp.hca_core_clock); | |
3816 | ||
0b24e5ac MD |
3817 | if (ucore->outlen < resp.response_length + sizeof(resp.device_cap_flags_ex)) |
3818 | goto end; | |
3819 | ||
3820 | resp.device_cap_flags_ex = attr.device_cap_flags; | |
3821 | resp.response_length += sizeof(resp.device_cap_flags_ex); | |
47adf2f4 YH |
3822 | |
3823 | if (ucore->outlen < resp.response_length + sizeof(resp.rss_caps)) | |
3824 | goto end; | |
3825 | ||
3826 | resp.rss_caps.supported_qpts = attr.rss_caps.supported_qpts; | |
3827 | resp.rss_caps.max_rwq_indirection_tables = | |
3828 | attr.rss_caps.max_rwq_indirection_tables; | |
3829 | resp.rss_caps.max_rwq_indirection_table_size = | |
3830 | attr.rss_caps.max_rwq_indirection_table_size; | |
3831 | ||
3832 | resp.response_length += sizeof(resp.rss_caps); | |
3833 | ||
3834 | if (ucore->outlen < resp.response_length + sizeof(resp.max_wq_type_rq)) | |
3835 | goto end; | |
3836 | ||
3837 | resp.max_wq_type_rq = attr.max_wq_type_rq; | |
3838 | resp.response_length += sizeof(resp.max_wq_type_rq); | |
5f23d426 NO |
3839 | |
3840 | if (ucore->outlen < resp.response_length + sizeof(resp.raw_packet_caps)) | |
3841 | goto end; | |
3842 | ||
3843 | resp.raw_packet_caps = attr.raw_packet_caps; | |
3844 | resp.response_length += sizeof(resp.raw_packet_caps); | |
8d50505a | 3845 | |
78b1beb0 | 3846 | if (ucore->outlen < resp.response_length + sizeof(resp.tm_caps)) |
8d50505a AK |
3847 | goto end; |
3848 | ||
78b1beb0 LR |
3849 | resp.tm_caps.max_rndv_hdr_size = attr.tm_caps.max_rndv_hdr_size; |
3850 | resp.tm_caps.max_num_tags = attr.tm_caps.max_num_tags; | |
3851 | resp.tm_caps.max_ops = attr.tm_caps.max_ops; | |
3852 | resp.tm_caps.max_sge = attr.tm_caps.max_sge; | |
3853 | resp.tm_caps.flags = attr.tm_caps.flags; | |
3854 | resp.response_length += sizeof(resp.tm_caps); | |
18bd9072 YC |
3855 | |
3856 | if (ucore->outlen < resp.response_length + sizeof(resp.cq_moderation_caps)) | |
3857 | goto end; | |
3858 | ||
3859 | resp.cq_moderation_caps.max_cq_moderation_count = | |
3860 | attr.cq_caps.max_cq_moderation_count; | |
3861 | resp.cq_moderation_caps.max_cq_moderation_period = | |
3862 | attr.cq_caps.max_cq_moderation_period; | |
3863 | resp.response_length += sizeof(resp.cq_moderation_caps); | |
f4056bfd | 3864 | end: |
02d1aa7a | 3865 | err = ib_copy_to_udata(ucore, &resp, resp.response_length); |
2953f425 | 3866 | return err; |
02d1aa7a | 3867 | } |
869ddcf8 YC |
3868 | |
3869 | int ib_uverbs_ex_modify_cq(struct ib_uverbs_file *file, | |
3870 | struct ib_device *ib_dev, | |
3871 | struct ib_udata *ucore, | |
3872 | struct ib_udata *uhw) | |
3873 | { | |
3874 | struct ib_uverbs_ex_modify_cq cmd = {}; | |
3875 | struct ib_cq *cq; | |
3876 | size_t required_cmd_sz; | |
3877 | int ret; | |
3878 | ||
3879 | required_cmd_sz = offsetof(typeof(cmd), reserved) + | |
3880 | sizeof(cmd.reserved); | |
3881 | if (ucore->inlen < required_cmd_sz) | |
3882 | return -EINVAL; | |
3883 | ||
3884 | /* sanity checks */ | |
3885 | if (ucore->inlen > sizeof(cmd) && | |
3886 | !ib_is_udata_cleared(ucore, sizeof(cmd), | |
3887 | ucore->inlen - sizeof(cmd))) | |
3888 | return -EOPNOTSUPP; | |
3889 | ||
3890 | ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); | |
3891 | if (ret) | |
3892 | return ret; | |
3893 | ||
3894 | if (!cmd.attr_mask || cmd.reserved) | |
3895 | return -EINVAL; | |
3896 | ||
3897 | if (cmd.attr_mask > IB_CQ_MODERATE) | |
3898 | return -EOPNOTSUPP; | |
3899 | ||
3900 | cq = uobj_get_obj_read(cq, cmd.cq_handle, file->ucontext); | |
3901 | if (!cq) | |
3902 | return -EINVAL; | |
3903 | ||
3904 | ret = ib_modify_cq(cq, cmd.attr.cq_count, cmd.attr.cq_period); | |
3905 | ||
3906 | uobj_put_obj_read(cq); | |
3907 | ||
3908 | return ret; | |
3909 | } |