2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved.
4 * Copyright (c) 2005 PathScale, Inc. All rights reserved.
5 * Copyright (c) 2006 Mellanox Technologies. All rights reserved.
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:
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
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.
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
36 #include <linux/file.h>
38 #include <linux/slab.h>
39 #include <linux/sched.h>
41 #include <linux/uaccess.h>
43 #include <rdma/uverbs_types.h>
44 #include <rdma/uverbs_std_types.h>
45 #include "rdma_core.h"
48 #include "core_priv.h"
50 static struct ib_uverbs_completion_event_file
*
51 ib_uverbs_lookup_comp_file(int fd
, struct ib_ucontext
*context
)
53 struct ib_uobject
*uobj
= uobj_get_read(uobj_get_type(comp_channel
),
55 struct ib_uobject_file
*uobj_file
;
60 uverbs_uobject_get(uobj
);
63 uobj_file
= container_of(uobj
, struct ib_uobject_file
, uobj
);
64 return container_of(uobj_file
, struct ib_uverbs_completion_event_file
,
68 ssize_t
ib_uverbs_get_context(struct ib_uverbs_file
*file
,
69 struct ib_device
*ib_dev
,
70 const char __user
*buf
,
71 int in_len
, int out_len
)
73 struct ib_uverbs_get_context cmd
;
74 struct ib_uverbs_get_context_resp resp
;
75 struct ib_udata udata
;
76 struct ib_ucontext
*ucontext
;
78 struct ib_rdmacg_object cg_obj
;
81 if (out_len
< sizeof resp
)
84 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
87 mutex_lock(&file
->mutex
);
94 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
95 (unsigned long) cmd
.response
+ sizeof(resp
),
96 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
97 out_len
- sizeof(resp
));
99 ret
= ib_rdmacg_try_charge(&cg_obj
, ib_dev
, RDMACG_RESOURCE_HCA_HANDLE
);
103 ucontext
= ib_dev
->alloc_ucontext(ib_dev
, &udata
);
104 if (IS_ERR(ucontext
)) {
105 ret
= PTR_ERR(ucontext
);
109 ucontext
->device
= ib_dev
;
110 ucontext
->cg_obj
= cg_obj
;
111 /* ufile is required when some objects are released */
112 ucontext
->ufile
= file
;
113 uverbs_initialize_ucontext(ucontext
);
116 ucontext
->tgid
= get_task_pid(current
->group_leader
, PIDTYPE_PID
);
118 ucontext
->closing
= 0;
120 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
121 ucontext
->umem_tree
= RB_ROOT_CACHED
;
122 init_rwsem(&ucontext
->umem_rwsem
);
123 ucontext
->odp_mrs_count
= 0;
124 INIT_LIST_HEAD(&ucontext
->no_private_counters
);
126 if (!(ib_dev
->attrs
.device_cap_flags
& IB_DEVICE_ON_DEMAND_PAGING
))
127 ucontext
->invalidate_range
= NULL
;
131 resp
.num_comp_vectors
= file
->device
->num_comp_vectors
;
133 ret
= get_unused_fd_flags(O_CLOEXEC
);
138 filp
= ib_uverbs_alloc_async_event_file(file
, ib_dev
);
144 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
145 &resp
, sizeof resp
)) {
150 file
->ucontext
= ucontext
;
152 fd_install(resp
.async_fd
, filp
);
154 mutex_unlock(&file
->mutex
);
159 ib_uverbs_free_async_event_file(file
);
163 put_unused_fd(resp
.async_fd
);
166 put_pid(ucontext
->tgid
);
167 ib_dev
->dealloc_ucontext(ucontext
);
170 ib_rdmacg_uncharge(&cg_obj
, ib_dev
, RDMACG_RESOURCE_HCA_HANDLE
);
173 mutex_unlock(&file
->mutex
);
177 static void copy_query_dev_fields(struct ib_uverbs_file
*file
,
178 struct ib_device
*ib_dev
,
179 struct ib_uverbs_query_device_resp
*resp
,
180 struct ib_device_attr
*attr
)
182 resp
->fw_ver
= attr
->fw_ver
;
183 resp
->node_guid
= ib_dev
->node_guid
;
184 resp
->sys_image_guid
= attr
->sys_image_guid
;
185 resp
->max_mr_size
= attr
->max_mr_size
;
186 resp
->page_size_cap
= attr
->page_size_cap
;
187 resp
->vendor_id
= attr
->vendor_id
;
188 resp
->vendor_part_id
= attr
->vendor_part_id
;
189 resp
->hw_ver
= attr
->hw_ver
;
190 resp
->max_qp
= attr
->max_qp
;
191 resp
->max_qp_wr
= attr
->max_qp_wr
;
192 resp
->device_cap_flags
= lower_32_bits(attr
->device_cap_flags
);
193 resp
->max_sge
= attr
->max_sge
;
194 resp
->max_sge_rd
= attr
->max_sge_rd
;
195 resp
->max_cq
= attr
->max_cq
;
196 resp
->max_cqe
= attr
->max_cqe
;
197 resp
->max_mr
= attr
->max_mr
;
198 resp
->max_pd
= attr
->max_pd
;
199 resp
->max_qp_rd_atom
= attr
->max_qp_rd_atom
;
200 resp
->max_ee_rd_atom
= attr
->max_ee_rd_atom
;
201 resp
->max_res_rd_atom
= attr
->max_res_rd_atom
;
202 resp
->max_qp_init_rd_atom
= attr
->max_qp_init_rd_atom
;
203 resp
->max_ee_init_rd_atom
= attr
->max_ee_init_rd_atom
;
204 resp
->atomic_cap
= attr
->atomic_cap
;
205 resp
->max_ee
= attr
->max_ee
;
206 resp
->max_rdd
= attr
->max_rdd
;
207 resp
->max_mw
= attr
->max_mw
;
208 resp
->max_raw_ipv6_qp
= attr
->max_raw_ipv6_qp
;
209 resp
->max_raw_ethy_qp
= attr
->max_raw_ethy_qp
;
210 resp
->max_mcast_grp
= attr
->max_mcast_grp
;
211 resp
->max_mcast_qp_attach
= attr
->max_mcast_qp_attach
;
212 resp
->max_total_mcast_qp_attach
= attr
->max_total_mcast_qp_attach
;
213 resp
->max_ah
= attr
->max_ah
;
214 resp
->max_fmr
= attr
->max_fmr
;
215 resp
->max_map_per_fmr
= attr
->max_map_per_fmr
;
216 resp
->max_srq
= attr
->max_srq
;
217 resp
->max_srq_wr
= attr
->max_srq_wr
;
218 resp
->max_srq_sge
= attr
->max_srq_sge
;
219 resp
->max_pkeys
= attr
->max_pkeys
;
220 resp
->local_ca_ack_delay
= attr
->local_ca_ack_delay
;
221 resp
->phys_port_cnt
= ib_dev
->phys_port_cnt
;
224 ssize_t
ib_uverbs_query_device(struct ib_uverbs_file
*file
,
225 struct ib_device
*ib_dev
,
226 const char __user
*buf
,
227 int in_len
, int out_len
)
229 struct ib_uverbs_query_device cmd
;
230 struct ib_uverbs_query_device_resp resp
;
232 if (out_len
< sizeof resp
)
235 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
238 memset(&resp
, 0, sizeof resp
);
239 copy_query_dev_fields(file
, ib_dev
, &resp
, &ib_dev
->attrs
);
241 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
248 ssize_t
ib_uverbs_query_port(struct ib_uverbs_file
*file
,
249 struct ib_device
*ib_dev
,
250 const char __user
*buf
,
251 int in_len
, int out_len
)
253 struct ib_uverbs_query_port cmd
;
254 struct ib_uverbs_query_port_resp resp
;
255 struct ib_port_attr attr
;
258 if (out_len
< sizeof resp
)
261 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
264 ret
= ib_query_port(ib_dev
, cmd
.port_num
, &attr
);
268 memset(&resp
, 0, sizeof resp
);
270 resp
.state
= attr
.state
;
271 resp
.max_mtu
= attr
.max_mtu
;
272 resp
.active_mtu
= attr
.active_mtu
;
273 resp
.gid_tbl_len
= attr
.gid_tbl_len
;
274 resp
.port_cap_flags
= attr
.port_cap_flags
;
275 resp
.max_msg_sz
= attr
.max_msg_sz
;
276 resp
.bad_pkey_cntr
= attr
.bad_pkey_cntr
;
277 resp
.qkey_viol_cntr
= attr
.qkey_viol_cntr
;
278 resp
.pkey_tbl_len
= attr
.pkey_tbl_len
;
280 if (rdma_cap_opa_ah(ib_dev
, cmd
.port_num
)) {
281 resp
.lid
= OPA_TO_IB_UCAST_LID(attr
.lid
);
282 resp
.sm_lid
= OPA_TO_IB_UCAST_LID(attr
.sm_lid
);
284 resp
.lid
= ib_lid_cpu16(attr
.lid
);
285 resp
.sm_lid
= ib_lid_cpu16(attr
.sm_lid
);
288 resp
.max_vl_num
= attr
.max_vl_num
;
289 resp
.sm_sl
= attr
.sm_sl
;
290 resp
.subnet_timeout
= attr
.subnet_timeout
;
291 resp
.init_type_reply
= attr
.init_type_reply
;
292 resp
.active_width
= attr
.active_width
;
293 resp
.active_speed
= attr
.active_speed
;
294 resp
.phys_state
= attr
.phys_state
;
295 resp
.link_layer
= rdma_port_get_link_layer(ib_dev
,
298 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
305 ssize_t
ib_uverbs_alloc_pd(struct ib_uverbs_file
*file
,
306 struct ib_device
*ib_dev
,
307 const char __user
*buf
,
308 int in_len
, int out_len
)
310 struct ib_uverbs_alloc_pd cmd
;
311 struct ib_uverbs_alloc_pd_resp resp
;
312 struct ib_udata udata
;
313 struct ib_uobject
*uobj
;
317 if (out_len
< sizeof resp
)
320 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
323 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
324 (unsigned long) cmd
.response
+ sizeof(resp
),
325 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
326 out_len
- sizeof(resp
));
328 uobj
= uobj_alloc(uobj_get_type(pd
), file
->ucontext
);
330 return PTR_ERR(uobj
);
332 pd
= ib_dev
->alloc_pd(ib_dev
, file
->ucontext
, &udata
);
340 pd
->__internal_mr
= NULL
;
341 atomic_set(&pd
->usecnt
, 0);
344 memset(&resp
, 0, sizeof resp
);
345 resp
.pd_handle
= uobj
->id
;
347 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
348 &resp
, sizeof resp
)) {
353 uobj_alloc_commit(uobj
);
361 uobj_alloc_abort(uobj
);
365 ssize_t
ib_uverbs_dealloc_pd(struct ib_uverbs_file
*file
,
366 struct ib_device
*ib_dev
,
367 const char __user
*buf
,
368 int in_len
, int out_len
)
370 struct ib_uverbs_dealloc_pd cmd
;
371 struct ib_uobject
*uobj
;
374 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
377 uobj
= uobj_get_write(uobj_get_type(pd
), cmd
.pd_handle
,
380 return PTR_ERR(uobj
);
382 ret
= uobj_remove_commit(uobj
);
384 return ret
?: in_len
;
387 struct xrcd_table_entry
{
389 struct ib_xrcd
*xrcd
;
393 static int xrcd_table_insert(struct ib_uverbs_device
*dev
,
395 struct ib_xrcd
*xrcd
)
397 struct xrcd_table_entry
*entry
, *scan
;
398 struct rb_node
**p
= &dev
->xrcd_tree
.rb_node
;
399 struct rb_node
*parent
= NULL
;
401 entry
= kmalloc(sizeof *entry
, GFP_KERNEL
);
406 entry
->inode
= inode
;
410 scan
= rb_entry(parent
, struct xrcd_table_entry
, node
);
412 if (inode
< scan
->inode
) {
414 } else if (inode
> scan
->inode
) {
422 rb_link_node(&entry
->node
, parent
, p
);
423 rb_insert_color(&entry
->node
, &dev
->xrcd_tree
);
428 static struct xrcd_table_entry
*xrcd_table_search(struct ib_uverbs_device
*dev
,
431 struct xrcd_table_entry
*entry
;
432 struct rb_node
*p
= dev
->xrcd_tree
.rb_node
;
435 entry
= rb_entry(p
, struct xrcd_table_entry
, node
);
437 if (inode
< entry
->inode
)
439 else if (inode
> entry
->inode
)
448 static struct ib_xrcd
*find_xrcd(struct ib_uverbs_device
*dev
, struct inode
*inode
)
450 struct xrcd_table_entry
*entry
;
452 entry
= xrcd_table_search(dev
, inode
);
459 static void xrcd_table_delete(struct ib_uverbs_device
*dev
,
462 struct xrcd_table_entry
*entry
;
464 entry
= xrcd_table_search(dev
, inode
);
467 rb_erase(&entry
->node
, &dev
->xrcd_tree
);
472 ssize_t
ib_uverbs_open_xrcd(struct ib_uverbs_file
*file
,
473 struct ib_device
*ib_dev
,
474 const char __user
*buf
, int in_len
,
477 struct ib_uverbs_open_xrcd cmd
;
478 struct ib_uverbs_open_xrcd_resp resp
;
479 struct ib_udata udata
;
480 struct ib_uxrcd_object
*obj
;
481 struct ib_xrcd
*xrcd
= NULL
;
482 struct fd f
= {NULL
, 0};
483 struct inode
*inode
= NULL
;
487 if (out_len
< sizeof resp
)
490 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
493 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
494 (unsigned long) cmd
.response
+ sizeof(resp
),
495 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
496 out_len
- sizeof(resp
));
498 mutex_lock(&file
->device
->xrcd_tree_mutex
);
501 /* search for file descriptor */
505 goto err_tree_mutex_unlock
;
508 inode
= file_inode(f
.file
);
509 xrcd
= find_xrcd(file
->device
, inode
);
510 if (!xrcd
&& !(cmd
.oflags
& O_CREAT
)) {
511 /* no file descriptor. Need CREATE flag */
513 goto err_tree_mutex_unlock
;
516 if (xrcd
&& cmd
.oflags
& O_EXCL
) {
518 goto err_tree_mutex_unlock
;
522 obj
= (struct ib_uxrcd_object
*)uobj_alloc(uobj_get_type(xrcd
),
526 goto err_tree_mutex_unlock
;
530 xrcd
= ib_dev
->alloc_xrcd(ib_dev
, file
->ucontext
, &udata
);
537 xrcd
->device
= ib_dev
;
538 atomic_set(&xrcd
->usecnt
, 0);
539 mutex_init(&xrcd
->tgt_qp_mutex
);
540 INIT_LIST_HEAD(&xrcd
->tgt_qp_list
);
544 atomic_set(&obj
->refcnt
, 0);
545 obj
->uobject
.object
= xrcd
;
546 memset(&resp
, 0, sizeof resp
);
547 resp
.xrcd_handle
= obj
->uobject
.id
;
551 /* create new inode/xrcd table entry */
552 ret
= xrcd_table_insert(file
->device
, inode
, xrcd
);
554 goto err_dealloc_xrcd
;
556 atomic_inc(&xrcd
->usecnt
);
559 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
560 &resp
, sizeof resp
)) {
568 uobj_alloc_commit(&obj
->uobject
);
570 mutex_unlock(&file
->device
->xrcd_tree_mutex
);
576 xrcd_table_delete(file
->device
, inode
);
577 atomic_dec(&xrcd
->usecnt
);
581 ib_dealloc_xrcd(xrcd
);
584 uobj_alloc_abort(&obj
->uobject
);
586 err_tree_mutex_unlock
:
590 mutex_unlock(&file
->device
->xrcd_tree_mutex
);
595 ssize_t
ib_uverbs_close_xrcd(struct ib_uverbs_file
*file
,
596 struct ib_device
*ib_dev
,
597 const char __user
*buf
, int in_len
,
600 struct ib_uverbs_close_xrcd cmd
;
601 struct ib_uobject
*uobj
;
604 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
607 uobj
= uobj_get_write(uobj_get_type(xrcd
), cmd
.xrcd_handle
,
610 mutex_unlock(&file
->device
->xrcd_tree_mutex
);
611 return PTR_ERR(uobj
);
614 ret
= uobj_remove_commit(uobj
);
615 return ret
?: in_len
;
618 int ib_uverbs_dealloc_xrcd(struct ib_uverbs_device
*dev
,
619 struct ib_xrcd
*xrcd
,
620 enum rdma_remove_reason why
)
626 if (inode
&& !atomic_dec_and_test(&xrcd
->usecnt
))
629 ret
= ib_dealloc_xrcd(xrcd
);
631 if (why
== RDMA_REMOVE_DESTROY
&& ret
)
632 atomic_inc(&xrcd
->usecnt
);
634 xrcd_table_delete(dev
, inode
);
639 ssize_t
ib_uverbs_reg_mr(struct ib_uverbs_file
*file
,
640 struct ib_device
*ib_dev
,
641 const char __user
*buf
, int in_len
,
644 struct ib_uverbs_reg_mr cmd
;
645 struct ib_uverbs_reg_mr_resp resp
;
646 struct ib_udata udata
;
647 struct ib_uobject
*uobj
;
652 if (out_len
< sizeof resp
)
655 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
658 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
659 (unsigned long) cmd
.response
+ sizeof(resp
),
660 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
661 out_len
- sizeof(resp
));
663 if ((cmd
.start
& ~PAGE_MASK
) != (cmd
.hca_va
& ~PAGE_MASK
))
666 ret
= ib_check_mr_access(cmd
.access_flags
);
670 uobj
= uobj_alloc(uobj_get_type(mr
), file
->ucontext
);
672 return PTR_ERR(uobj
);
674 pd
= uobj_get_obj_read(pd
, cmd
.pd_handle
, file
->ucontext
);
680 if (cmd
.access_flags
& IB_ACCESS_ON_DEMAND
) {
681 if (!(pd
->device
->attrs
.device_cap_flags
&
682 IB_DEVICE_ON_DEMAND_PAGING
)) {
683 pr_debug("ODP support not available\n");
689 mr
= pd
->device
->reg_user_mr(pd
, cmd
.start
, cmd
.length
, cmd
.hca_va
,
690 cmd
.access_flags
, &udata
);
696 mr
->device
= pd
->device
;
699 atomic_inc(&pd
->usecnt
);
703 memset(&resp
, 0, sizeof resp
);
704 resp
.lkey
= mr
->lkey
;
705 resp
.rkey
= mr
->rkey
;
706 resp
.mr_handle
= uobj
->id
;
708 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
709 &resp
, sizeof resp
)) {
714 uobj_put_obj_read(pd
);
716 uobj_alloc_commit(uobj
);
724 uobj_put_obj_read(pd
);
727 uobj_alloc_abort(uobj
);
731 ssize_t
ib_uverbs_rereg_mr(struct ib_uverbs_file
*file
,
732 struct ib_device
*ib_dev
,
733 const char __user
*buf
, int in_len
,
736 struct ib_uverbs_rereg_mr cmd
;
737 struct ib_uverbs_rereg_mr_resp resp
;
738 struct ib_udata udata
;
739 struct ib_pd
*pd
= NULL
;
741 struct ib_pd
*old_pd
;
743 struct ib_uobject
*uobj
;
745 if (out_len
< sizeof(resp
))
748 if (copy_from_user(&cmd
, buf
, sizeof(cmd
)))
751 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
752 (unsigned long) cmd
.response
+ sizeof(resp
),
753 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
754 out_len
- sizeof(resp
));
756 if (cmd
.flags
& ~IB_MR_REREG_SUPPORTED
|| !cmd
.flags
)
759 if ((cmd
.flags
& IB_MR_REREG_TRANS
) &&
760 (!cmd
.start
|| !cmd
.hca_va
|| 0 >= cmd
.length
||
761 (cmd
.start
& ~PAGE_MASK
) != (cmd
.hca_va
& ~PAGE_MASK
)))
764 uobj
= uobj_get_write(uobj_get_type(mr
), cmd
.mr_handle
,
767 return PTR_ERR(uobj
);
771 if (cmd
.flags
& IB_MR_REREG_ACCESS
) {
772 ret
= ib_check_mr_access(cmd
.access_flags
);
777 if (cmd
.flags
& IB_MR_REREG_PD
) {
778 pd
= uobj_get_obj_read(pd
, cmd
.pd_handle
, file
->ucontext
);
786 ret
= mr
->device
->rereg_user_mr(mr
, cmd
.flags
, cmd
.start
,
787 cmd
.length
, cmd
.hca_va
,
788 cmd
.access_flags
, pd
, &udata
);
790 if (cmd
.flags
& IB_MR_REREG_PD
) {
791 atomic_inc(&pd
->usecnt
);
793 atomic_dec(&old_pd
->usecnt
);
799 memset(&resp
, 0, sizeof(resp
));
800 resp
.lkey
= mr
->lkey
;
801 resp
.rkey
= mr
->rkey
;
803 if (copy_to_user((void __user
*)(unsigned long)cmd
.response
,
804 &resp
, sizeof(resp
)))
810 if (cmd
.flags
& IB_MR_REREG_PD
)
811 uobj_put_obj_read(pd
);
814 uobj_put_write(uobj
);
819 ssize_t
ib_uverbs_dereg_mr(struct ib_uverbs_file
*file
,
820 struct ib_device
*ib_dev
,
821 const char __user
*buf
, int in_len
,
824 struct ib_uverbs_dereg_mr cmd
;
825 struct ib_uobject
*uobj
;
828 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
831 uobj
= uobj_get_write(uobj_get_type(mr
), cmd
.mr_handle
,
834 return PTR_ERR(uobj
);
836 ret
= uobj_remove_commit(uobj
);
838 return ret
?: in_len
;
841 ssize_t
ib_uverbs_alloc_mw(struct ib_uverbs_file
*file
,
842 struct ib_device
*ib_dev
,
843 const char __user
*buf
, int in_len
,
846 struct ib_uverbs_alloc_mw cmd
;
847 struct ib_uverbs_alloc_mw_resp resp
;
848 struct ib_uobject
*uobj
;
851 struct ib_udata udata
;
854 if (out_len
< sizeof(resp
))
857 if (copy_from_user(&cmd
, buf
, sizeof(cmd
)))
860 uobj
= uobj_alloc(uobj_get_type(mw
), file
->ucontext
);
862 return PTR_ERR(uobj
);
864 pd
= uobj_get_obj_read(pd
, cmd
.pd_handle
, file
->ucontext
);
870 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
871 (unsigned long)cmd
.response
+ sizeof(resp
),
872 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
873 out_len
- sizeof(resp
));
875 mw
= pd
->device
->alloc_mw(pd
, cmd
.mw_type
, &udata
);
881 mw
->device
= pd
->device
;
884 atomic_inc(&pd
->usecnt
);
888 memset(&resp
, 0, sizeof(resp
));
889 resp
.rkey
= mw
->rkey
;
890 resp
.mw_handle
= uobj
->id
;
892 if (copy_to_user((void __user
*)(unsigned long)cmd
.response
,
893 &resp
, sizeof(resp
))) {
898 uobj_put_obj_read(pd
);
899 uobj_alloc_commit(uobj
);
904 uverbs_dealloc_mw(mw
);
906 uobj_put_obj_read(pd
);
908 uobj_alloc_abort(uobj
);
912 ssize_t
ib_uverbs_dealloc_mw(struct ib_uverbs_file
*file
,
913 struct ib_device
*ib_dev
,
914 const char __user
*buf
, int in_len
,
917 struct ib_uverbs_dealloc_mw cmd
;
918 struct ib_uobject
*uobj
;
921 if (copy_from_user(&cmd
, buf
, sizeof(cmd
)))
924 uobj
= uobj_get_write(uobj_get_type(mw
), cmd
.mw_handle
,
927 return PTR_ERR(uobj
);
929 ret
= uobj_remove_commit(uobj
);
930 return ret
?: in_len
;
933 ssize_t
ib_uverbs_create_comp_channel(struct ib_uverbs_file
*file
,
934 struct ib_device
*ib_dev
,
935 const char __user
*buf
, int in_len
,
938 struct ib_uverbs_create_comp_channel cmd
;
939 struct ib_uverbs_create_comp_channel_resp resp
;
940 struct ib_uobject
*uobj
;
941 struct ib_uverbs_completion_event_file
*ev_file
;
943 if (out_len
< sizeof resp
)
946 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
949 uobj
= uobj_alloc(uobj_get_type(comp_channel
), file
->ucontext
);
951 return PTR_ERR(uobj
);
955 ev_file
= container_of(uobj
, struct ib_uverbs_completion_event_file
,
957 ib_uverbs_init_event_queue(&ev_file
->ev_queue
);
959 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
960 &resp
, sizeof resp
)) {
961 uobj_alloc_abort(uobj
);
965 uobj_alloc_commit(uobj
);
969 static struct ib_ucq_object
*create_cq(struct ib_uverbs_file
*file
,
970 struct ib_device
*ib_dev
,
971 struct ib_udata
*ucore
,
972 struct ib_udata
*uhw
,
973 struct ib_uverbs_ex_create_cq
*cmd
,
975 int (*cb
)(struct ib_uverbs_file
*file
,
976 struct ib_ucq_object
*obj
,
977 struct ib_uverbs_ex_create_cq_resp
*resp
,
978 struct ib_udata
*udata
,
982 struct ib_ucq_object
*obj
;
983 struct ib_uverbs_completion_event_file
*ev_file
= NULL
;
986 struct ib_uverbs_ex_create_cq_resp resp
;
987 struct ib_cq_init_attr attr
= {};
989 if (cmd
->comp_vector
>= file
->device
->num_comp_vectors
)
990 return ERR_PTR(-EINVAL
);
992 obj
= (struct ib_ucq_object
*)uobj_alloc(uobj_get_type(cq
),
997 if (cmd
->comp_channel
>= 0) {
998 ev_file
= ib_uverbs_lookup_comp_file(cmd
->comp_channel
,
1000 if (IS_ERR(ev_file
)) {
1001 ret
= PTR_ERR(ev_file
);
1006 obj
->uobject
.user_handle
= cmd
->user_handle
;
1007 obj
->uverbs_file
= file
;
1008 obj
->comp_events_reported
= 0;
1009 obj
->async_events_reported
= 0;
1010 INIT_LIST_HEAD(&obj
->comp_list
);
1011 INIT_LIST_HEAD(&obj
->async_list
);
1013 attr
.cqe
= cmd
->cqe
;
1014 attr
.comp_vector
= cmd
->comp_vector
;
1016 if (cmd_sz
> offsetof(typeof(*cmd
), flags
) + sizeof(cmd
->flags
))
1017 attr
.flags
= cmd
->flags
;
1019 cq
= ib_dev
->create_cq(ib_dev
, &attr
, file
->ucontext
, uhw
);
1025 cq
->device
= ib_dev
;
1026 cq
->uobject
= &obj
->uobject
;
1027 cq
->comp_handler
= ib_uverbs_comp_handler
;
1028 cq
->event_handler
= ib_uverbs_cq_event_handler
;
1029 cq
->cq_context
= ev_file
? &ev_file
->ev_queue
: NULL
;
1030 atomic_set(&cq
->usecnt
, 0);
1032 obj
->uobject
.object
= cq
;
1033 memset(&resp
, 0, sizeof resp
);
1034 resp
.base
.cq_handle
= obj
->uobject
.id
;
1035 resp
.base
.cqe
= cq
->cqe
;
1037 resp
.response_length
= offsetof(typeof(resp
), response_length
) +
1038 sizeof(resp
.response_length
);
1040 ret
= cb(file
, obj
, &resp
, ucore
, context
);
1044 uobj_alloc_commit(&obj
->uobject
);
1053 ib_uverbs_release_ucq(file
, ev_file
, obj
);
1056 uobj_alloc_abort(&obj
->uobject
);
1058 return ERR_PTR(ret
);
1061 static int ib_uverbs_create_cq_cb(struct ib_uverbs_file
*file
,
1062 struct ib_ucq_object
*obj
,
1063 struct ib_uverbs_ex_create_cq_resp
*resp
,
1064 struct ib_udata
*ucore
, void *context
)
1066 if (ib_copy_to_udata(ucore
, &resp
->base
, sizeof(resp
->base
)))
1072 ssize_t
ib_uverbs_create_cq(struct ib_uverbs_file
*file
,
1073 struct ib_device
*ib_dev
,
1074 const char __user
*buf
, int in_len
,
1077 struct ib_uverbs_create_cq cmd
;
1078 struct ib_uverbs_ex_create_cq cmd_ex
;
1079 struct ib_uverbs_create_cq_resp resp
;
1080 struct ib_udata ucore
;
1081 struct ib_udata uhw
;
1082 struct ib_ucq_object
*obj
;
1084 if (out_len
< sizeof(resp
))
1087 if (copy_from_user(&cmd
, buf
, sizeof(cmd
)))
1090 INIT_UDATA(&ucore
, buf
, (unsigned long)cmd
.response
, sizeof(cmd
), sizeof(resp
));
1092 INIT_UDATA(&uhw
, buf
+ sizeof(cmd
),
1093 (unsigned long)cmd
.response
+ sizeof(resp
),
1094 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
1095 out_len
- sizeof(resp
));
1097 memset(&cmd_ex
, 0, sizeof(cmd_ex
));
1098 cmd_ex
.user_handle
= cmd
.user_handle
;
1099 cmd_ex
.cqe
= cmd
.cqe
;
1100 cmd_ex
.comp_vector
= cmd
.comp_vector
;
1101 cmd_ex
.comp_channel
= cmd
.comp_channel
;
1103 obj
= create_cq(file
, ib_dev
, &ucore
, &uhw
, &cmd_ex
,
1104 offsetof(typeof(cmd_ex
), comp_channel
) +
1105 sizeof(cmd
.comp_channel
), ib_uverbs_create_cq_cb
,
1109 return PTR_ERR(obj
);
1114 static int ib_uverbs_ex_create_cq_cb(struct ib_uverbs_file
*file
,
1115 struct ib_ucq_object
*obj
,
1116 struct ib_uverbs_ex_create_cq_resp
*resp
,
1117 struct ib_udata
*ucore
, void *context
)
1119 if (ib_copy_to_udata(ucore
, resp
, resp
->response_length
))
1125 int ib_uverbs_ex_create_cq(struct ib_uverbs_file
*file
,
1126 struct ib_device
*ib_dev
,
1127 struct ib_udata
*ucore
,
1128 struct ib_udata
*uhw
)
1130 struct ib_uverbs_ex_create_cq_resp resp
;
1131 struct ib_uverbs_ex_create_cq cmd
;
1132 struct ib_ucq_object
*obj
;
1135 if (ucore
->inlen
< sizeof(cmd
))
1138 err
= ib_copy_from_udata(&cmd
, ucore
, sizeof(cmd
));
1148 if (ucore
->outlen
< (offsetof(typeof(resp
), response_length
) +
1149 sizeof(resp
.response_length
)))
1152 obj
= create_cq(file
, ib_dev
, ucore
, uhw
, &cmd
,
1153 min(ucore
->inlen
, sizeof(cmd
)),
1154 ib_uverbs_ex_create_cq_cb
, NULL
);
1157 return PTR_ERR(obj
);
1162 ssize_t
ib_uverbs_resize_cq(struct ib_uverbs_file
*file
,
1163 struct ib_device
*ib_dev
,
1164 const char __user
*buf
, int in_len
,
1167 struct ib_uverbs_resize_cq cmd
;
1168 struct ib_uverbs_resize_cq_resp resp
= {};
1169 struct ib_udata udata
;
1173 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
1176 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
1177 (unsigned long) cmd
.response
+ sizeof(resp
),
1178 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
1179 out_len
- sizeof(resp
));
1181 cq
= uobj_get_obj_read(cq
, cmd
.cq_handle
, file
->ucontext
);
1185 ret
= cq
->device
->resize_cq(cq
, cmd
.cqe
, &udata
);
1191 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
1192 &resp
, sizeof resp
.cqe
))
1196 uobj_put_obj_read(cq
);
1198 return ret
? ret
: in_len
;
1201 static int copy_wc_to_user(struct ib_device
*ib_dev
, void __user
*dest
,
1204 struct ib_uverbs_wc tmp
;
1206 tmp
.wr_id
= wc
->wr_id
;
1207 tmp
.status
= wc
->status
;
1208 tmp
.opcode
= wc
->opcode
;
1209 tmp
.vendor_err
= wc
->vendor_err
;
1210 tmp
.byte_len
= wc
->byte_len
;
1211 tmp
.ex
.imm_data
= (__u32 __force
) wc
->ex
.imm_data
;
1212 tmp
.qp_num
= wc
->qp
->qp_num
;
1213 tmp
.src_qp
= wc
->src_qp
;
1214 tmp
.wc_flags
= wc
->wc_flags
;
1215 tmp
.pkey_index
= wc
->pkey_index
;
1216 if (rdma_cap_opa_ah(ib_dev
, wc
->port_num
))
1217 tmp
.slid
= OPA_TO_IB_UCAST_LID(wc
->slid
);
1219 tmp
.slid
= ib_lid_cpu16(wc
->slid
);
1221 tmp
.dlid_path_bits
= wc
->dlid_path_bits
;
1222 tmp
.port_num
= wc
->port_num
;
1225 if (copy_to_user(dest
, &tmp
, sizeof tmp
))
1231 ssize_t
ib_uverbs_poll_cq(struct ib_uverbs_file
*file
,
1232 struct ib_device
*ib_dev
,
1233 const char __user
*buf
, int in_len
,
1236 struct ib_uverbs_poll_cq cmd
;
1237 struct ib_uverbs_poll_cq_resp resp
;
1238 u8 __user
*header_ptr
;
1239 u8 __user
*data_ptr
;
1244 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
1247 cq
= uobj_get_obj_read(cq
, cmd
.cq_handle
, file
->ucontext
);
1251 /* we copy a struct ib_uverbs_poll_cq_resp to user space */
1252 header_ptr
= (void __user
*)(unsigned long) cmd
.response
;
1253 data_ptr
= header_ptr
+ sizeof resp
;
1255 memset(&resp
, 0, sizeof resp
);
1256 while (resp
.count
< cmd
.ne
) {
1257 ret
= ib_poll_cq(cq
, 1, &wc
);
1263 ret
= copy_wc_to_user(ib_dev
, data_ptr
, &wc
);
1267 data_ptr
+= sizeof(struct ib_uverbs_wc
);
1271 if (copy_to_user(header_ptr
, &resp
, sizeof resp
)) {
1279 uobj_put_obj_read(cq
);
1283 ssize_t
ib_uverbs_req_notify_cq(struct ib_uverbs_file
*file
,
1284 struct ib_device
*ib_dev
,
1285 const char __user
*buf
, int in_len
,
1288 struct ib_uverbs_req_notify_cq cmd
;
1291 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
1294 cq
= uobj_get_obj_read(cq
, cmd
.cq_handle
, file
->ucontext
);
1298 ib_req_notify_cq(cq
, cmd
.solicited_only
?
1299 IB_CQ_SOLICITED
: IB_CQ_NEXT_COMP
);
1301 uobj_put_obj_read(cq
);
1306 ssize_t
ib_uverbs_destroy_cq(struct ib_uverbs_file
*file
,
1307 struct ib_device
*ib_dev
,
1308 const char __user
*buf
, int in_len
,
1311 struct ib_uverbs_destroy_cq cmd
;
1312 struct ib_uverbs_destroy_cq_resp resp
;
1313 struct ib_uobject
*uobj
;
1315 struct ib_ucq_object
*obj
;
1318 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
1321 uobj
= uobj_get_write(uobj_get_type(cq
), cmd
.cq_handle
,
1324 return PTR_ERR(uobj
);
1327 * Make sure we don't free the memory in remove_commit as we still
1328 * needs the uobject memory to create the response.
1330 uverbs_uobject_get(uobj
);
1332 obj
= container_of(cq
->uobject
, struct ib_ucq_object
, uobject
);
1334 memset(&resp
, 0, sizeof(resp
));
1336 ret
= uobj_remove_commit(uobj
);
1338 uverbs_uobject_put(uobj
);
1342 resp
.comp_events_reported
= obj
->comp_events_reported
;
1343 resp
.async_events_reported
= obj
->async_events_reported
;
1345 uverbs_uobject_put(uobj
);
1346 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
1347 &resp
, sizeof resp
))
1353 static int create_qp(struct ib_uverbs_file
*file
,
1354 struct ib_udata
*ucore
,
1355 struct ib_udata
*uhw
,
1356 struct ib_uverbs_ex_create_qp
*cmd
,
1358 int (*cb
)(struct ib_uverbs_file
*file
,
1359 struct ib_uverbs_ex_create_qp_resp
*resp
,
1360 struct ib_udata
*udata
),
1363 struct ib_uqp_object
*obj
;
1364 struct ib_device
*device
;
1365 struct ib_pd
*pd
= NULL
;
1366 struct ib_xrcd
*xrcd
= NULL
;
1367 struct ib_uobject
*xrcd_uobj
= ERR_PTR(-ENOENT
);
1368 struct ib_cq
*scq
= NULL
, *rcq
= NULL
;
1369 struct ib_srq
*srq
= NULL
;
1372 struct ib_qp_init_attr attr
= {};
1373 struct ib_uverbs_ex_create_qp_resp resp
;
1375 struct ib_rwq_ind_table
*ind_tbl
= NULL
;
1378 if (cmd
->qp_type
== IB_QPT_RAW_PACKET
&& !capable(CAP_NET_RAW
))
1381 obj
= (struct ib_uqp_object
*)uobj_alloc(uobj_get_type(qp
),
1384 return PTR_ERR(obj
);
1386 obj
->uevent
.uobject
.user_handle
= cmd
->user_handle
;
1387 mutex_init(&obj
->mcast_lock
);
1389 if (cmd_sz
>= offsetof(typeof(*cmd
), rwq_ind_tbl_handle
) +
1390 sizeof(cmd
->rwq_ind_tbl_handle
) &&
1391 (cmd
->comp_mask
& IB_UVERBS_CREATE_QP_MASK_IND_TABLE
)) {
1392 ind_tbl
= uobj_get_obj_read(rwq_ind_table
,
1393 cmd
->rwq_ind_tbl_handle
,
1400 attr
.rwq_ind_tbl
= ind_tbl
;
1403 if (cmd_sz
> sizeof(*cmd
) &&
1404 !ib_is_udata_cleared(ucore
, sizeof(*cmd
),
1405 cmd_sz
- sizeof(*cmd
))) {
1410 if (ind_tbl
&& (cmd
->max_recv_wr
|| cmd
->max_recv_sge
|| cmd
->is_srq
)) {
1415 if (ind_tbl
&& !cmd
->max_send_wr
)
1418 if (cmd
->qp_type
== IB_QPT_XRC_TGT
) {
1419 xrcd_uobj
= uobj_get_read(uobj_get_type(xrcd
), cmd
->pd_handle
,
1422 if (IS_ERR(xrcd_uobj
)) {
1427 xrcd
= (struct ib_xrcd
*)xrcd_uobj
->object
;
1432 device
= xrcd
->device
;
1434 if (cmd
->qp_type
== IB_QPT_XRC_INI
) {
1435 cmd
->max_recv_wr
= 0;
1436 cmd
->max_recv_sge
= 0;
1439 srq
= uobj_get_obj_read(srq
, cmd
->srq_handle
,
1441 if (!srq
|| srq
->srq_type
== IB_SRQT_XRC
) {
1448 if (cmd
->recv_cq_handle
!= cmd
->send_cq_handle
) {
1449 rcq
= uobj_get_obj_read(cq
, cmd
->recv_cq_handle
,
1460 scq
= uobj_get_obj_read(cq
, cmd
->send_cq_handle
,
1464 pd
= uobj_get_obj_read(pd
, cmd
->pd_handle
, file
->ucontext
);
1465 if (!pd
|| (!scq
&& has_sq
)) {
1470 device
= pd
->device
;
1473 attr
.event_handler
= ib_uverbs_qp_event_handler
;
1474 attr
.qp_context
= file
;
1479 attr
.sq_sig_type
= cmd
->sq_sig_all
? IB_SIGNAL_ALL_WR
:
1481 attr
.qp_type
= cmd
->qp_type
;
1482 attr
.create_flags
= 0;
1484 attr
.cap
.max_send_wr
= cmd
->max_send_wr
;
1485 attr
.cap
.max_recv_wr
= cmd
->max_recv_wr
;
1486 attr
.cap
.max_send_sge
= cmd
->max_send_sge
;
1487 attr
.cap
.max_recv_sge
= cmd
->max_recv_sge
;
1488 attr
.cap
.max_inline_data
= cmd
->max_inline_data
;
1490 obj
->uevent
.events_reported
= 0;
1491 INIT_LIST_HEAD(&obj
->uevent
.event_list
);
1492 INIT_LIST_HEAD(&obj
->mcast_list
);
1494 if (cmd_sz
>= offsetof(typeof(*cmd
), create_flags
) +
1495 sizeof(cmd
->create_flags
))
1496 attr
.create_flags
= cmd
->create_flags
;
1498 if (attr
.create_flags
& ~(IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK
|
1499 IB_QP_CREATE_CROSS_CHANNEL
|
1500 IB_QP_CREATE_MANAGED_SEND
|
1501 IB_QP_CREATE_MANAGED_RECV
|
1502 IB_QP_CREATE_SCATTER_FCS
|
1503 IB_QP_CREATE_CVLAN_STRIPPING
|
1504 IB_QP_CREATE_SOURCE_QPN
)) {
1509 if (attr
.create_flags
& IB_QP_CREATE_SOURCE_QPN
) {
1510 if (!capable(CAP_NET_RAW
)) {
1515 attr
.source_qpn
= cmd
->source_qpn
;
1518 buf
= (void *)cmd
+ sizeof(*cmd
);
1519 if (cmd_sz
> sizeof(*cmd
))
1520 if (!(buf
[0] == 0 && !memcmp(buf
, buf
+ 1,
1521 cmd_sz
- sizeof(*cmd
) - 1))) {
1526 if (cmd
->qp_type
== IB_QPT_XRC_TGT
)
1527 qp
= ib_create_qp(pd
, &attr
);
1529 qp
= device
->create_qp(pd
, &attr
, uhw
);
1536 if (cmd
->qp_type
!= IB_QPT_XRC_TGT
) {
1537 ret
= ib_create_qp_security(qp
, device
);
1542 qp
->device
= device
;
1544 qp
->send_cq
= attr
.send_cq
;
1545 qp
->recv_cq
= attr
.recv_cq
;
1547 qp
->rwq_ind_tbl
= ind_tbl
;
1548 qp
->event_handler
= attr
.event_handler
;
1549 qp
->qp_context
= attr
.qp_context
;
1550 qp
->qp_type
= attr
.qp_type
;
1551 atomic_set(&qp
->usecnt
, 0);
1552 atomic_inc(&pd
->usecnt
);
1555 atomic_inc(&attr
.send_cq
->usecnt
);
1557 atomic_inc(&attr
.recv_cq
->usecnt
);
1559 atomic_inc(&attr
.srq
->usecnt
);
1561 atomic_inc(&ind_tbl
->usecnt
);
1563 qp
->uobject
= &obj
->uevent
.uobject
;
1565 obj
->uevent
.uobject
.object
= qp
;
1567 memset(&resp
, 0, sizeof resp
);
1568 resp
.base
.qpn
= qp
->qp_num
;
1569 resp
.base
.qp_handle
= obj
->uevent
.uobject
.id
;
1570 resp
.base
.max_recv_sge
= attr
.cap
.max_recv_sge
;
1571 resp
.base
.max_send_sge
= attr
.cap
.max_send_sge
;
1572 resp
.base
.max_recv_wr
= attr
.cap
.max_recv_wr
;
1573 resp
.base
.max_send_wr
= attr
.cap
.max_send_wr
;
1574 resp
.base
.max_inline_data
= attr
.cap
.max_inline_data
;
1576 resp
.response_length
= offsetof(typeof(resp
), response_length
) +
1577 sizeof(resp
.response_length
);
1579 ret
= cb(file
, &resp
, ucore
);
1584 obj
->uxrcd
= container_of(xrcd_uobj
, struct ib_uxrcd_object
,
1586 atomic_inc(&obj
->uxrcd
->refcnt
);
1587 uobj_put_read(xrcd_uobj
);
1591 uobj_put_obj_read(pd
);
1593 uobj_put_obj_read(scq
);
1594 if (rcq
&& rcq
!= scq
)
1595 uobj_put_obj_read(rcq
);
1597 uobj_put_obj_read(srq
);
1599 uobj_put_obj_read(ind_tbl
);
1601 uobj_alloc_commit(&obj
->uevent
.uobject
);
1608 if (!IS_ERR(xrcd_uobj
))
1609 uobj_put_read(xrcd_uobj
);
1611 uobj_put_obj_read(pd
);
1613 uobj_put_obj_read(scq
);
1614 if (rcq
&& rcq
!= scq
)
1615 uobj_put_obj_read(rcq
);
1617 uobj_put_obj_read(srq
);
1619 uobj_put_obj_read(ind_tbl
);
1621 uobj_alloc_abort(&obj
->uevent
.uobject
);
1625 static int ib_uverbs_create_qp_cb(struct ib_uverbs_file
*file
,
1626 struct ib_uverbs_ex_create_qp_resp
*resp
,
1627 struct ib_udata
*ucore
)
1629 if (ib_copy_to_udata(ucore
, &resp
->base
, sizeof(resp
->base
)))
1635 ssize_t
ib_uverbs_create_qp(struct ib_uverbs_file
*file
,
1636 struct ib_device
*ib_dev
,
1637 const char __user
*buf
, int in_len
,
1640 struct ib_uverbs_create_qp cmd
;
1641 struct ib_uverbs_ex_create_qp cmd_ex
;
1642 struct ib_udata ucore
;
1643 struct ib_udata uhw
;
1644 ssize_t resp_size
= sizeof(struct ib_uverbs_create_qp_resp
);
1647 if (out_len
< resp_size
)
1650 if (copy_from_user(&cmd
, buf
, sizeof(cmd
)))
1653 INIT_UDATA(&ucore
, buf
, (unsigned long)cmd
.response
, sizeof(cmd
),
1655 INIT_UDATA(&uhw
, buf
+ sizeof(cmd
),
1656 (unsigned long)cmd
.response
+ resp_size
,
1657 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
1658 out_len
- resp_size
);
1660 memset(&cmd_ex
, 0, sizeof(cmd_ex
));
1661 cmd_ex
.user_handle
= cmd
.user_handle
;
1662 cmd_ex
.pd_handle
= cmd
.pd_handle
;
1663 cmd_ex
.send_cq_handle
= cmd
.send_cq_handle
;
1664 cmd_ex
.recv_cq_handle
= cmd
.recv_cq_handle
;
1665 cmd_ex
.srq_handle
= cmd
.srq_handle
;
1666 cmd_ex
.max_send_wr
= cmd
.max_send_wr
;
1667 cmd_ex
.max_recv_wr
= cmd
.max_recv_wr
;
1668 cmd_ex
.max_send_sge
= cmd
.max_send_sge
;
1669 cmd_ex
.max_recv_sge
= cmd
.max_recv_sge
;
1670 cmd_ex
.max_inline_data
= cmd
.max_inline_data
;
1671 cmd_ex
.sq_sig_all
= cmd
.sq_sig_all
;
1672 cmd_ex
.qp_type
= cmd
.qp_type
;
1673 cmd_ex
.is_srq
= cmd
.is_srq
;
1675 err
= create_qp(file
, &ucore
, &uhw
, &cmd_ex
,
1676 offsetof(typeof(cmd_ex
), is_srq
) +
1677 sizeof(cmd
.is_srq
), ib_uverbs_create_qp_cb
,
1686 static int ib_uverbs_ex_create_qp_cb(struct ib_uverbs_file
*file
,
1687 struct ib_uverbs_ex_create_qp_resp
*resp
,
1688 struct ib_udata
*ucore
)
1690 if (ib_copy_to_udata(ucore
, resp
, resp
->response_length
))
1696 int ib_uverbs_ex_create_qp(struct ib_uverbs_file
*file
,
1697 struct ib_device
*ib_dev
,
1698 struct ib_udata
*ucore
,
1699 struct ib_udata
*uhw
)
1701 struct ib_uverbs_ex_create_qp_resp resp
;
1702 struct ib_uverbs_ex_create_qp cmd
= {0};
1705 if (ucore
->inlen
< (offsetof(typeof(cmd
), comp_mask
) +
1706 sizeof(cmd
.comp_mask
)))
1709 err
= ib_copy_from_udata(&cmd
, ucore
, min(sizeof(cmd
), ucore
->inlen
));
1713 if (cmd
.comp_mask
& ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK
)
1719 if (ucore
->outlen
< (offsetof(typeof(resp
), response_length
) +
1720 sizeof(resp
.response_length
)))
1723 err
= create_qp(file
, ucore
, uhw
, &cmd
,
1724 min(ucore
->inlen
, sizeof(cmd
)),
1725 ib_uverbs_ex_create_qp_cb
, NULL
);
1733 ssize_t
ib_uverbs_open_qp(struct ib_uverbs_file
*file
,
1734 struct ib_device
*ib_dev
,
1735 const char __user
*buf
, int in_len
, int out_len
)
1737 struct ib_uverbs_open_qp cmd
;
1738 struct ib_uverbs_create_qp_resp resp
;
1739 struct ib_udata udata
;
1740 struct ib_uqp_object
*obj
;
1741 struct ib_xrcd
*xrcd
;
1742 struct ib_uobject
*uninitialized_var(xrcd_uobj
);
1744 struct ib_qp_open_attr attr
;
1747 if (out_len
< sizeof resp
)
1750 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
1753 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
1754 (unsigned long) cmd
.response
+ sizeof(resp
),
1755 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
1756 out_len
- sizeof(resp
));
1758 obj
= (struct ib_uqp_object
*)uobj_alloc(uobj_get_type(qp
),
1761 return PTR_ERR(obj
);
1763 xrcd_uobj
= uobj_get_read(uobj_get_type(xrcd
), cmd
.pd_handle
,
1765 if (IS_ERR(xrcd_uobj
)) {
1770 xrcd
= (struct ib_xrcd
*)xrcd_uobj
->object
;
1776 attr
.event_handler
= ib_uverbs_qp_event_handler
;
1777 attr
.qp_context
= file
;
1778 attr
.qp_num
= cmd
.qpn
;
1779 attr
.qp_type
= cmd
.qp_type
;
1781 obj
->uevent
.events_reported
= 0;
1782 INIT_LIST_HEAD(&obj
->uevent
.event_list
);
1783 INIT_LIST_HEAD(&obj
->mcast_list
);
1785 qp
= ib_open_qp(xrcd
, &attr
);
1791 obj
->uevent
.uobject
.object
= qp
;
1792 obj
->uevent
.uobject
.user_handle
= cmd
.user_handle
;
1794 memset(&resp
, 0, sizeof resp
);
1795 resp
.qpn
= qp
->qp_num
;
1796 resp
.qp_handle
= obj
->uevent
.uobject
.id
;
1798 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
1799 &resp
, sizeof resp
)) {
1804 obj
->uxrcd
= container_of(xrcd_uobj
, struct ib_uxrcd_object
, uobject
);
1805 atomic_inc(&obj
->uxrcd
->refcnt
);
1806 qp
->uobject
= &obj
->uevent
.uobject
;
1807 uobj_put_read(xrcd_uobj
);
1810 uobj_alloc_commit(&obj
->uevent
.uobject
);
1817 uobj_put_read(xrcd_uobj
);
1819 uobj_alloc_abort(&obj
->uevent
.uobject
);
1823 static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest
*uverb_attr
,
1824 struct rdma_ah_attr
*rdma_attr
)
1826 const struct ib_global_route
*grh
;
1828 uverb_attr
->dlid
= rdma_ah_get_dlid(rdma_attr
);
1829 uverb_attr
->sl
= rdma_ah_get_sl(rdma_attr
);
1830 uverb_attr
->src_path_bits
= rdma_ah_get_path_bits(rdma_attr
);
1831 uverb_attr
->static_rate
= rdma_ah_get_static_rate(rdma_attr
);
1832 uverb_attr
->is_global
= !!(rdma_ah_get_ah_flags(rdma_attr
) &
1834 if (uverb_attr
->is_global
) {
1835 grh
= rdma_ah_read_grh(rdma_attr
);
1836 memcpy(uverb_attr
->dgid
, grh
->dgid
.raw
, 16);
1837 uverb_attr
->flow_label
= grh
->flow_label
;
1838 uverb_attr
->sgid_index
= grh
->sgid_index
;
1839 uverb_attr
->hop_limit
= grh
->hop_limit
;
1840 uverb_attr
->traffic_class
= grh
->traffic_class
;
1842 uverb_attr
->port_num
= rdma_ah_get_port_num(rdma_attr
);
1845 ssize_t
ib_uverbs_query_qp(struct ib_uverbs_file
*file
,
1846 struct ib_device
*ib_dev
,
1847 const char __user
*buf
, int in_len
,
1850 struct ib_uverbs_query_qp cmd
;
1851 struct ib_uverbs_query_qp_resp resp
;
1853 struct ib_qp_attr
*attr
;
1854 struct ib_qp_init_attr
*init_attr
;
1857 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
1860 attr
= kmalloc(sizeof *attr
, GFP_KERNEL
);
1861 init_attr
= kmalloc(sizeof *init_attr
, GFP_KERNEL
);
1862 if (!attr
|| !init_attr
) {
1867 qp
= uobj_get_obj_read(qp
, cmd
.qp_handle
, file
->ucontext
);
1873 ret
= ib_query_qp(qp
, attr
, cmd
.attr_mask
, init_attr
);
1875 uobj_put_obj_read(qp
);
1880 memset(&resp
, 0, sizeof resp
);
1882 resp
.qp_state
= attr
->qp_state
;
1883 resp
.cur_qp_state
= attr
->cur_qp_state
;
1884 resp
.path_mtu
= attr
->path_mtu
;
1885 resp
.path_mig_state
= attr
->path_mig_state
;
1886 resp
.qkey
= attr
->qkey
;
1887 resp
.rq_psn
= attr
->rq_psn
;
1888 resp
.sq_psn
= attr
->sq_psn
;
1889 resp
.dest_qp_num
= attr
->dest_qp_num
;
1890 resp
.qp_access_flags
= attr
->qp_access_flags
;
1891 resp
.pkey_index
= attr
->pkey_index
;
1892 resp
.alt_pkey_index
= attr
->alt_pkey_index
;
1893 resp
.sq_draining
= attr
->sq_draining
;
1894 resp
.max_rd_atomic
= attr
->max_rd_atomic
;
1895 resp
.max_dest_rd_atomic
= attr
->max_dest_rd_atomic
;
1896 resp
.min_rnr_timer
= attr
->min_rnr_timer
;
1897 resp
.port_num
= attr
->port_num
;
1898 resp
.timeout
= attr
->timeout
;
1899 resp
.retry_cnt
= attr
->retry_cnt
;
1900 resp
.rnr_retry
= attr
->rnr_retry
;
1901 resp
.alt_port_num
= attr
->alt_port_num
;
1902 resp
.alt_timeout
= attr
->alt_timeout
;
1904 copy_ah_attr_to_uverbs(&resp
.dest
, &attr
->ah_attr
);
1905 copy_ah_attr_to_uverbs(&resp
.alt_dest
, &attr
->alt_ah_attr
);
1907 resp
.max_send_wr
= init_attr
->cap
.max_send_wr
;
1908 resp
.max_recv_wr
= init_attr
->cap
.max_recv_wr
;
1909 resp
.max_send_sge
= init_attr
->cap
.max_send_sge
;
1910 resp
.max_recv_sge
= init_attr
->cap
.max_recv_sge
;
1911 resp
.max_inline_data
= init_attr
->cap
.max_inline_data
;
1912 resp
.sq_sig_all
= init_attr
->sq_sig_type
== IB_SIGNAL_ALL_WR
;
1914 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
1915 &resp
, sizeof resp
))
1922 return ret
? ret
: in_len
;
1925 /* Remove ignored fields set in the attribute mask */
1926 static int modify_qp_mask(enum ib_qp_type qp_type
, int mask
)
1929 case IB_QPT_XRC_INI
:
1930 return mask
& ~(IB_QP_MAX_DEST_RD_ATOMIC
| IB_QP_MIN_RNR_TIMER
);
1931 case IB_QPT_XRC_TGT
:
1932 return mask
& ~(IB_QP_MAX_QP_RD_ATOMIC
| IB_QP_RETRY_CNT
|
1939 static void copy_ah_attr_from_uverbs(struct ib_device
*dev
,
1940 struct rdma_ah_attr
*rdma_attr
,
1941 struct ib_uverbs_qp_dest
*uverb_attr
)
1943 rdma_attr
->type
= rdma_ah_find_type(dev
, uverb_attr
->port_num
);
1944 if (uverb_attr
->is_global
) {
1945 rdma_ah_set_grh(rdma_attr
, NULL
,
1946 uverb_attr
->flow_label
,
1947 uverb_attr
->sgid_index
,
1948 uverb_attr
->hop_limit
,
1949 uverb_attr
->traffic_class
);
1950 rdma_ah_set_dgid_raw(rdma_attr
, uverb_attr
->dgid
);
1952 rdma_ah_set_ah_flags(rdma_attr
, 0);
1954 rdma_ah_set_dlid(rdma_attr
, uverb_attr
->dlid
);
1955 rdma_ah_set_sl(rdma_attr
, uverb_attr
->sl
);
1956 rdma_ah_set_path_bits(rdma_attr
, uverb_attr
->src_path_bits
);
1957 rdma_ah_set_static_rate(rdma_attr
, uverb_attr
->static_rate
);
1958 rdma_ah_set_port_num(rdma_attr
, uverb_attr
->port_num
);
1959 rdma_ah_set_make_grd(rdma_attr
, false);
1962 static int modify_qp(struct ib_uverbs_file
*file
,
1963 struct ib_uverbs_ex_modify_qp
*cmd
, struct ib_udata
*udata
)
1965 struct ib_qp_attr
*attr
;
1969 attr
= kmalloc(sizeof *attr
, GFP_KERNEL
);
1973 qp
= uobj_get_obj_read(qp
, cmd
->base
.qp_handle
, file
->ucontext
);
1979 if ((cmd
->base
.attr_mask
& IB_QP_PORT
) &&
1980 !rdma_is_port_valid(qp
->device
, cmd
->base
.port_num
)) {
1985 attr
->qp_state
= cmd
->base
.qp_state
;
1986 attr
->cur_qp_state
= cmd
->base
.cur_qp_state
;
1987 attr
->path_mtu
= cmd
->base
.path_mtu
;
1988 attr
->path_mig_state
= cmd
->base
.path_mig_state
;
1989 attr
->qkey
= cmd
->base
.qkey
;
1990 attr
->rq_psn
= cmd
->base
.rq_psn
;
1991 attr
->sq_psn
= cmd
->base
.sq_psn
;
1992 attr
->dest_qp_num
= cmd
->base
.dest_qp_num
;
1993 attr
->qp_access_flags
= cmd
->base
.qp_access_flags
;
1994 attr
->pkey_index
= cmd
->base
.pkey_index
;
1995 attr
->alt_pkey_index
= cmd
->base
.alt_pkey_index
;
1996 attr
->en_sqd_async_notify
= cmd
->base
.en_sqd_async_notify
;
1997 attr
->max_rd_atomic
= cmd
->base
.max_rd_atomic
;
1998 attr
->max_dest_rd_atomic
= cmd
->base
.max_dest_rd_atomic
;
1999 attr
->min_rnr_timer
= cmd
->base
.min_rnr_timer
;
2000 attr
->port_num
= cmd
->base
.port_num
;
2001 attr
->timeout
= cmd
->base
.timeout
;
2002 attr
->retry_cnt
= cmd
->base
.retry_cnt
;
2003 attr
->rnr_retry
= cmd
->base
.rnr_retry
;
2004 attr
->alt_port_num
= cmd
->base
.alt_port_num
;
2005 attr
->alt_timeout
= cmd
->base
.alt_timeout
;
2006 attr
->rate_limit
= cmd
->rate_limit
;
2008 if (cmd
->base
.attr_mask
& IB_QP_AV
)
2009 copy_ah_attr_from_uverbs(qp
->device
, &attr
->ah_attr
,
2012 if (cmd
->base
.attr_mask
& IB_QP_ALT_PATH
)
2013 copy_ah_attr_from_uverbs(qp
->device
, &attr
->alt_ah_attr
,
2014 &cmd
->base
.alt_dest
);
2016 ret
= ib_modify_qp_with_udata(qp
, attr
,
2017 modify_qp_mask(qp
->qp_type
,
2018 cmd
->base
.attr_mask
),
2022 uobj_put_obj_read(qp
);
2029 ssize_t
ib_uverbs_modify_qp(struct ib_uverbs_file
*file
,
2030 struct ib_device
*ib_dev
,
2031 const char __user
*buf
, int in_len
,
2034 struct ib_uverbs_ex_modify_qp cmd
= {};
2035 struct ib_udata udata
;
2038 if (copy_from_user(&cmd
.base
, buf
, sizeof(cmd
.base
)))
2041 if (cmd
.base
.attr_mask
&
2042 ~((IB_USER_LEGACY_LAST_QP_ATTR_MASK
<< 1) - 1))
2045 INIT_UDATA(&udata
, buf
+ sizeof(cmd
.base
), NULL
,
2046 in_len
- sizeof(cmd
.base
) - sizeof(struct ib_uverbs_cmd_hdr
),
2049 ret
= modify_qp(file
, &cmd
, &udata
);
2056 int ib_uverbs_ex_modify_qp(struct ib_uverbs_file
*file
,
2057 struct ib_device
*ib_dev
,
2058 struct ib_udata
*ucore
,
2059 struct ib_udata
*uhw
)
2061 struct ib_uverbs_ex_modify_qp cmd
= {};
2065 * Last bit is reserved for extending the attr_mask by
2066 * using another field.
2068 BUILD_BUG_ON(IB_USER_LAST_QP_ATTR_MASK
== (1 << 31));
2070 if (ucore
->inlen
< sizeof(cmd
.base
))
2073 ret
= ib_copy_from_udata(&cmd
, ucore
, min(sizeof(cmd
), ucore
->inlen
));
2077 if (cmd
.base
.attr_mask
&
2078 ~((IB_USER_LAST_QP_ATTR_MASK
<< 1) - 1))
2081 if (ucore
->inlen
> sizeof(cmd
)) {
2082 if (ib_is_udata_cleared(ucore
, sizeof(cmd
),
2083 ucore
->inlen
- sizeof(cmd
)))
2087 ret
= modify_qp(file
, &cmd
, uhw
);
2092 ssize_t
ib_uverbs_destroy_qp(struct ib_uverbs_file
*file
,
2093 struct ib_device
*ib_dev
,
2094 const char __user
*buf
, int in_len
,
2097 struct ib_uverbs_destroy_qp cmd
;
2098 struct ib_uverbs_destroy_qp_resp resp
;
2099 struct ib_uobject
*uobj
;
2100 struct ib_uqp_object
*obj
;
2103 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2106 memset(&resp
, 0, sizeof resp
);
2108 uobj
= uobj_get_write(uobj_get_type(qp
), cmd
.qp_handle
,
2111 return PTR_ERR(uobj
);
2113 obj
= container_of(uobj
, struct ib_uqp_object
, uevent
.uobject
);
2115 * Make sure we don't free the memory in remove_commit as we still
2116 * needs the uobject memory to create the response.
2118 uverbs_uobject_get(uobj
);
2120 ret
= uobj_remove_commit(uobj
);
2122 uverbs_uobject_put(uobj
);
2126 resp
.events_reported
= obj
->uevent
.events_reported
;
2127 uverbs_uobject_put(uobj
);
2129 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
2130 &resp
, sizeof resp
))
2136 static void *alloc_wr(size_t wr_size
, __u32 num_sge
)
2138 if (num_sge
>= (U32_MAX
- ALIGN(wr_size
, sizeof (struct ib_sge
))) /
2139 sizeof (struct ib_sge
))
2142 return kmalloc(ALIGN(wr_size
, sizeof (struct ib_sge
)) +
2143 num_sge
* sizeof (struct ib_sge
), GFP_KERNEL
);
2146 ssize_t
ib_uverbs_post_send(struct ib_uverbs_file
*file
,
2147 struct ib_device
*ib_dev
,
2148 const char __user
*buf
, int in_len
,
2151 struct ib_uverbs_post_send cmd
;
2152 struct ib_uverbs_post_send_resp resp
;
2153 struct ib_uverbs_send_wr
*user_wr
;
2154 struct ib_send_wr
*wr
= NULL
, *last
, *next
, *bad_wr
;
2158 ssize_t ret
= -EINVAL
;
2161 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2164 if (in_len
< sizeof cmd
+ cmd
.wqe_size
* cmd
.wr_count
+
2165 cmd
.sge_count
* sizeof (struct ib_uverbs_sge
))
2168 if (cmd
.wqe_size
< sizeof (struct ib_uverbs_send_wr
))
2171 user_wr
= kmalloc(cmd
.wqe_size
, GFP_KERNEL
);
2175 qp
= uobj_get_obj_read(qp
, cmd
.qp_handle
, file
->ucontext
);
2179 is_ud
= qp
->qp_type
== IB_QPT_UD
;
2182 for (i
= 0; i
< cmd
.wr_count
; ++i
) {
2183 if (copy_from_user(user_wr
,
2184 buf
+ sizeof cmd
+ i
* cmd
.wqe_size
,
2190 if (user_wr
->num_sge
+ sg_ind
> cmd
.sge_count
) {
2196 struct ib_ud_wr
*ud
;
2198 if (user_wr
->opcode
!= IB_WR_SEND
&&
2199 user_wr
->opcode
!= IB_WR_SEND_WITH_IMM
) {
2204 next_size
= sizeof(*ud
);
2205 ud
= alloc_wr(next_size
, user_wr
->num_sge
);
2211 ud
->ah
= uobj_get_obj_read(ah
, user_wr
->wr
.ud
.ah
,
2218 ud
->remote_qpn
= user_wr
->wr
.ud
.remote_qpn
;
2219 ud
->remote_qkey
= user_wr
->wr
.ud
.remote_qkey
;
2222 } else if (user_wr
->opcode
== IB_WR_RDMA_WRITE_WITH_IMM
||
2223 user_wr
->opcode
== IB_WR_RDMA_WRITE
||
2224 user_wr
->opcode
== IB_WR_RDMA_READ
) {
2225 struct ib_rdma_wr
*rdma
;
2227 next_size
= sizeof(*rdma
);
2228 rdma
= alloc_wr(next_size
, user_wr
->num_sge
);
2234 rdma
->remote_addr
= user_wr
->wr
.rdma
.remote_addr
;
2235 rdma
->rkey
= user_wr
->wr
.rdma
.rkey
;
2238 } else if (user_wr
->opcode
== IB_WR_ATOMIC_CMP_AND_SWP
||
2239 user_wr
->opcode
== IB_WR_ATOMIC_FETCH_AND_ADD
) {
2240 struct ib_atomic_wr
*atomic
;
2242 next_size
= sizeof(*atomic
);
2243 atomic
= alloc_wr(next_size
, user_wr
->num_sge
);
2249 atomic
->remote_addr
= user_wr
->wr
.atomic
.remote_addr
;
2250 atomic
->compare_add
= user_wr
->wr
.atomic
.compare_add
;
2251 atomic
->swap
= user_wr
->wr
.atomic
.swap
;
2252 atomic
->rkey
= user_wr
->wr
.atomic
.rkey
;
2255 } else if (user_wr
->opcode
== IB_WR_SEND
||
2256 user_wr
->opcode
== IB_WR_SEND_WITH_IMM
||
2257 user_wr
->opcode
== IB_WR_SEND_WITH_INV
) {
2258 next_size
= sizeof(*next
);
2259 next
= alloc_wr(next_size
, user_wr
->num_sge
);
2269 if (user_wr
->opcode
== IB_WR_SEND_WITH_IMM
||
2270 user_wr
->opcode
== IB_WR_RDMA_WRITE_WITH_IMM
) {
2272 (__be32 __force
) user_wr
->ex
.imm_data
;
2273 } else if (user_wr
->opcode
== IB_WR_SEND_WITH_INV
) {
2274 next
->ex
.invalidate_rkey
= user_wr
->ex
.invalidate_rkey
;
2284 next
->wr_id
= user_wr
->wr_id
;
2285 next
->num_sge
= user_wr
->num_sge
;
2286 next
->opcode
= user_wr
->opcode
;
2287 next
->send_flags
= user_wr
->send_flags
;
2289 if (next
->num_sge
) {
2290 next
->sg_list
= (void *) next
+
2291 ALIGN(next_size
, sizeof(struct ib_sge
));
2292 if (copy_from_user(next
->sg_list
,
2294 cmd
.wr_count
* cmd
.wqe_size
+
2295 sg_ind
* sizeof (struct ib_sge
),
2296 next
->num_sge
* sizeof (struct ib_sge
))) {
2300 sg_ind
+= next
->num_sge
;
2302 next
->sg_list
= NULL
;
2306 ret
= qp
->device
->post_send(qp
->real_qp
, wr
, &bad_wr
);
2308 for (next
= wr
; next
; next
= next
->next
) {
2314 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
2315 &resp
, sizeof resp
))
2319 uobj_put_obj_read(qp
);
2322 if (is_ud
&& ud_wr(wr
)->ah
)
2323 uobj_put_obj_read(ud_wr(wr
)->ah
);
2332 return ret
? ret
: in_len
;
2335 static struct ib_recv_wr
*ib_uverbs_unmarshall_recv(const char __user
*buf
,
2341 struct ib_uverbs_recv_wr
*user_wr
;
2342 struct ib_recv_wr
*wr
= NULL
, *last
, *next
;
2347 if (in_len
< wqe_size
* wr_count
+
2348 sge_count
* sizeof (struct ib_uverbs_sge
))
2349 return ERR_PTR(-EINVAL
);
2351 if (wqe_size
< sizeof (struct ib_uverbs_recv_wr
))
2352 return ERR_PTR(-EINVAL
);
2354 user_wr
= kmalloc(wqe_size
, GFP_KERNEL
);
2356 return ERR_PTR(-ENOMEM
);
2360 for (i
= 0; i
< wr_count
; ++i
) {
2361 if (copy_from_user(user_wr
, buf
+ i
* wqe_size
,
2367 if (user_wr
->num_sge
+ sg_ind
> sge_count
) {
2372 if (user_wr
->num_sge
>=
2373 (U32_MAX
- ALIGN(sizeof *next
, sizeof (struct ib_sge
))) /
2374 sizeof (struct ib_sge
)) {
2379 next
= kmalloc(ALIGN(sizeof *next
, sizeof (struct ib_sge
)) +
2380 user_wr
->num_sge
* sizeof (struct ib_sge
),
2394 next
->wr_id
= user_wr
->wr_id
;
2395 next
->num_sge
= user_wr
->num_sge
;
2397 if (next
->num_sge
) {
2398 next
->sg_list
= (void *) next
+
2399 ALIGN(sizeof *next
, sizeof (struct ib_sge
));
2400 if (copy_from_user(next
->sg_list
,
2401 buf
+ wr_count
* wqe_size
+
2402 sg_ind
* sizeof (struct ib_sge
),
2403 next
->num_sge
* sizeof (struct ib_sge
))) {
2407 sg_ind
+= next
->num_sge
;
2409 next
->sg_list
= NULL
;
2424 return ERR_PTR(ret
);
2427 ssize_t
ib_uverbs_post_recv(struct ib_uverbs_file
*file
,
2428 struct ib_device
*ib_dev
,
2429 const char __user
*buf
, int in_len
,
2432 struct ib_uverbs_post_recv cmd
;
2433 struct ib_uverbs_post_recv_resp resp
;
2434 struct ib_recv_wr
*wr
, *next
, *bad_wr
;
2436 ssize_t ret
= -EINVAL
;
2438 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2441 wr
= ib_uverbs_unmarshall_recv(buf
+ sizeof cmd
,
2442 in_len
- sizeof cmd
, cmd
.wr_count
,
2443 cmd
.sge_count
, cmd
.wqe_size
);
2447 qp
= uobj_get_obj_read(qp
, cmd
.qp_handle
, file
->ucontext
);
2452 ret
= qp
->device
->post_recv(qp
->real_qp
, wr
, &bad_wr
);
2454 uobj_put_obj_read(qp
);
2456 for (next
= wr
; next
; next
= next
->next
) {
2463 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
2464 &resp
, sizeof resp
))
2474 return ret
? ret
: in_len
;
2477 ssize_t
ib_uverbs_post_srq_recv(struct ib_uverbs_file
*file
,
2478 struct ib_device
*ib_dev
,
2479 const char __user
*buf
, int in_len
,
2482 struct ib_uverbs_post_srq_recv cmd
;
2483 struct ib_uverbs_post_srq_recv_resp resp
;
2484 struct ib_recv_wr
*wr
, *next
, *bad_wr
;
2486 ssize_t ret
= -EINVAL
;
2488 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2491 wr
= ib_uverbs_unmarshall_recv(buf
+ sizeof cmd
,
2492 in_len
- sizeof cmd
, cmd
.wr_count
,
2493 cmd
.sge_count
, cmd
.wqe_size
);
2497 srq
= uobj_get_obj_read(srq
, cmd
.srq_handle
, file
->ucontext
);
2502 ret
= srq
->device
->post_srq_recv(srq
, wr
, &bad_wr
);
2504 uobj_put_obj_read(srq
);
2507 for (next
= wr
; next
; next
= next
->next
) {
2513 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
2514 &resp
, sizeof resp
))
2524 return ret
? ret
: in_len
;
2527 ssize_t
ib_uverbs_create_ah(struct ib_uverbs_file
*file
,
2528 struct ib_device
*ib_dev
,
2529 const char __user
*buf
, int in_len
,
2532 struct ib_uverbs_create_ah cmd
;
2533 struct ib_uverbs_create_ah_resp resp
;
2534 struct ib_uobject
*uobj
;
2537 struct rdma_ah_attr attr
;
2539 struct ib_udata udata
;
2542 if (out_len
< sizeof resp
)
2545 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2548 if (!rdma_is_port_valid(ib_dev
, cmd
.attr
.port_num
))
2551 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
2552 (unsigned long)cmd
.response
+ sizeof(resp
),
2553 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
2554 out_len
- sizeof(resp
));
2556 uobj
= uobj_alloc(uobj_get_type(ah
), file
->ucontext
);
2558 return PTR_ERR(uobj
);
2560 pd
= uobj_get_obj_read(pd
, cmd
.pd_handle
, file
->ucontext
);
2566 attr
.type
= rdma_ah_find_type(ib_dev
, cmd
.attr
.port_num
);
2567 rdma_ah_set_make_grd(&attr
, false);
2568 rdma_ah_set_dlid(&attr
, cmd
.attr
.dlid
);
2569 rdma_ah_set_sl(&attr
, cmd
.attr
.sl
);
2570 rdma_ah_set_path_bits(&attr
, cmd
.attr
.src_path_bits
);
2571 rdma_ah_set_static_rate(&attr
, cmd
.attr
.static_rate
);
2572 rdma_ah_set_port_num(&attr
, cmd
.attr
.port_num
);
2574 if (cmd
.attr
.is_global
) {
2575 rdma_ah_set_grh(&attr
, NULL
, cmd
.attr
.grh
.flow_label
,
2576 cmd
.attr
.grh
.sgid_index
,
2577 cmd
.attr
.grh
.hop_limit
,
2578 cmd
.attr
.grh
.traffic_class
);
2579 rdma_ah_set_dgid_raw(&attr
, cmd
.attr
.grh
.dgid
);
2581 rdma_ah_set_ah_flags(&attr
, 0);
2583 dmac
= rdma_ah_retrieve_dmac(&attr
);
2585 memset(dmac
, 0, ETH_ALEN
);
2587 ah
= pd
->device
->create_ah(pd
, &attr
, &udata
);
2594 ah
->device
= pd
->device
;
2596 atomic_inc(&pd
->usecnt
);
2598 uobj
->user_handle
= cmd
.user_handle
;
2601 resp
.ah_handle
= uobj
->id
;
2603 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
2604 &resp
, sizeof resp
)) {
2609 uobj_put_obj_read(pd
);
2610 uobj_alloc_commit(uobj
);
2615 rdma_destroy_ah(ah
);
2618 uobj_put_obj_read(pd
);
2621 uobj_alloc_abort(uobj
);
2625 ssize_t
ib_uverbs_destroy_ah(struct ib_uverbs_file
*file
,
2626 struct ib_device
*ib_dev
,
2627 const char __user
*buf
, int in_len
, int out_len
)
2629 struct ib_uverbs_destroy_ah cmd
;
2630 struct ib_uobject
*uobj
;
2633 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2636 uobj
= uobj_get_write(uobj_get_type(ah
), cmd
.ah_handle
,
2639 return PTR_ERR(uobj
);
2641 ret
= uobj_remove_commit(uobj
);
2642 return ret
?: in_len
;
2645 ssize_t
ib_uverbs_attach_mcast(struct ib_uverbs_file
*file
,
2646 struct ib_device
*ib_dev
,
2647 const char __user
*buf
, int in_len
,
2650 struct ib_uverbs_attach_mcast cmd
;
2652 struct ib_uqp_object
*obj
;
2653 struct ib_uverbs_mcast_entry
*mcast
;
2656 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2659 qp
= uobj_get_obj_read(qp
, cmd
.qp_handle
, file
->ucontext
);
2663 obj
= container_of(qp
->uobject
, struct ib_uqp_object
, uevent
.uobject
);
2665 mutex_lock(&obj
->mcast_lock
);
2666 list_for_each_entry(mcast
, &obj
->mcast_list
, list
)
2667 if (cmd
.mlid
== mcast
->lid
&&
2668 !memcmp(cmd
.gid
, mcast
->gid
.raw
, sizeof mcast
->gid
.raw
)) {
2673 mcast
= kmalloc(sizeof *mcast
, GFP_KERNEL
);
2679 mcast
->lid
= cmd
.mlid
;
2680 memcpy(mcast
->gid
.raw
, cmd
.gid
, sizeof mcast
->gid
.raw
);
2682 ret
= ib_attach_mcast(qp
, &mcast
->gid
, cmd
.mlid
);
2684 list_add_tail(&mcast
->list
, &obj
->mcast_list
);
2689 mutex_unlock(&obj
->mcast_lock
);
2690 uobj_put_obj_read(qp
);
2692 return ret
? ret
: in_len
;
2695 ssize_t
ib_uverbs_detach_mcast(struct ib_uverbs_file
*file
,
2696 struct ib_device
*ib_dev
,
2697 const char __user
*buf
, int in_len
,
2700 struct ib_uverbs_detach_mcast cmd
;
2701 struct ib_uqp_object
*obj
;
2703 struct ib_uverbs_mcast_entry
*mcast
;
2707 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
2710 qp
= uobj_get_obj_read(qp
, cmd
.qp_handle
, file
->ucontext
);
2714 obj
= container_of(qp
->uobject
, struct ib_uqp_object
, uevent
.uobject
);
2715 mutex_lock(&obj
->mcast_lock
);
2717 list_for_each_entry(mcast
, &obj
->mcast_list
, list
)
2718 if (cmd
.mlid
== mcast
->lid
&&
2719 !memcmp(cmd
.gid
, mcast
->gid
.raw
, sizeof mcast
->gid
.raw
)) {
2720 list_del(&mcast
->list
);
2731 ret
= ib_detach_mcast(qp
, (union ib_gid
*)cmd
.gid
, cmd
.mlid
);
2734 mutex_unlock(&obj
->mcast_lock
);
2735 uobj_put_obj_read(qp
);
2736 return ret
? ret
: in_len
;
2739 static int kern_spec_to_ib_spec_action(struct ib_uverbs_flow_spec
*kern_spec
,
2740 union ib_flow_spec
*ib_spec
)
2742 ib_spec
->type
= kern_spec
->type
;
2743 switch (ib_spec
->type
) {
2744 case IB_FLOW_SPEC_ACTION_TAG
:
2745 if (kern_spec
->flow_tag
.size
!=
2746 sizeof(struct ib_uverbs_flow_spec_action_tag
))
2749 ib_spec
->flow_tag
.size
= sizeof(struct ib_flow_spec_action_tag
);
2750 ib_spec
->flow_tag
.tag_id
= kern_spec
->flow_tag
.tag_id
;
2752 case IB_FLOW_SPEC_ACTION_DROP
:
2753 if (kern_spec
->drop
.size
!=
2754 sizeof(struct ib_uverbs_flow_spec_action_drop
))
2757 ib_spec
->drop
.size
= sizeof(struct ib_flow_spec_action_drop
);
2765 static size_t kern_spec_filter_sz(struct ib_uverbs_flow_spec_hdr
*spec
)
2767 /* Returns user space filter size, includes padding */
2768 return (spec
->size
- sizeof(struct ib_uverbs_flow_spec_hdr
)) / 2;
2771 static ssize_t
spec_filter_size(void *kern_spec_filter
, u16 kern_filter_size
,
2772 u16 ib_real_filter_sz
)
2775 * User space filter structures must be 64 bit aligned, otherwise this
2776 * may pass, but we won't handle additional new attributes.
2779 if (kern_filter_size
> ib_real_filter_sz
) {
2780 if (memchr_inv(kern_spec_filter
+
2781 ib_real_filter_sz
, 0,
2782 kern_filter_size
- ib_real_filter_sz
))
2784 return ib_real_filter_sz
;
2786 return kern_filter_size
;
2789 static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec
*kern_spec
,
2790 union ib_flow_spec
*ib_spec
)
2792 ssize_t actual_filter_sz
;
2793 ssize_t kern_filter_sz
;
2794 ssize_t ib_filter_sz
;
2795 void *kern_spec_mask
;
2796 void *kern_spec_val
;
2798 if (kern_spec
->reserved
)
2801 ib_spec
->type
= kern_spec
->type
;
2803 kern_filter_sz
= kern_spec_filter_sz(&kern_spec
->hdr
);
2804 /* User flow spec size must be aligned to 4 bytes */
2805 if (kern_filter_sz
!= ALIGN(kern_filter_sz
, 4))
2808 kern_spec_val
= (void *)kern_spec
+
2809 sizeof(struct ib_uverbs_flow_spec_hdr
);
2810 kern_spec_mask
= kern_spec_val
+ kern_filter_sz
;
2811 if (ib_spec
->type
== (IB_FLOW_SPEC_INNER
| IB_FLOW_SPEC_VXLAN_TUNNEL
))
2814 switch (ib_spec
->type
& ~IB_FLOW_SPEC_INNER
) {
2815 case IB_FLOW_SPEC_ETH
:
2816 ib_filter_sz
= offsetof(struct ib_flow_eth_filter
, real_sz
);
2817 actual_filter_sz
= spec_filter_size(kern_spec_mask
,
2820 if (actual_filter_sz
<= 0)
2822 ib_spec
->size
= sizeof(struct ib_flow_spec_eth
);
2823 memcpy(&ib_spec
->eth
.val
, kern_spec_val
, actual_filter_sz
);
2824 memcpy(&ib_spec
->eth
.mask
, kern_spec_mask
, actual_filter_sz
);
2826 case IB_FLOW_SPEC_IPV4
:
2827 ib_filter_sz
= offsetof(struct ib_flow_ipv4_filter
, real_sz
);
2828 actual_filter_sz
= spec_filter_size(kern_spec_mask
,
2831 if (actual_filter_sz
<= 0)
2833 ib_spec
->size
= sizeof(struct ib_flow_spec_ipv4
);
2834 memcpy(&ib_spec
->ipv4
.val
, kern_spec_val
, actual_filter_sz
);
2835 memcpy(&ib_spec
->ipv4
.mask
, kern_spec_mask
, actual_filter_sz
);
2837 case IB_FLOW_SPEC_IPV6
:
2838 ib_filter_sz
= offsetof(struct ib_flow_ipv6_filter
, real_sz
);
2839 actual_filter_sz
= spec_filter_size(kern_spec_mask
,
2842 if (actual_filter_sz
<= 0)
2844 ib_spec
->size
= sizeof(struct ib_flow_spec_ipv6
);
2845 memcpy(&ib_spec
->ipv6
.val
, kern_spec_val
, actual_filter_sz
);
2846 memcpy(&ib_spec
->ipv6
.mask
, kern_spec_mask
, actual_filter_sz
);
2848 if ((ntohl(ib_spec
->ipv6
.mask
.flow_label
)) >= BIT(20) ||
2849 (ntohl(ib_spec
->ipv6
.val
.flow_label
)) >= BIT(20))
2852 case IB_FLOW_SPEC_TCP
:
2853 case IB_FLOW_SPEC_UDP
:
2854 ib_filter_sz
= offsetof(struct ib_flow_tcp_udp_filter
, real_sz
);
2855 actual_filter_sz
= spec_filter_size(kern_spec_mask
,
2858 if (actual_filter_sz
<= 0)
2860 ib_spec
->size
= sizeof(struct ib_flow_spec_tcp_udp
);
2861 memcpy(&ib_spec
->tcp_udp
.val
, kern_spec_val
, actual_filter_sz
);
2862 memcpy(&ib_spec
->tcp_udp
.mask
, kern_spec_mask
, actual_filter_sz
);
2864 case IB_FLOW_SPEC_VXLAN_TUNNEL
:
2865 ib_filter_sz
= offsetof(struct ib_flow_tunnel_filter
, real_sz
);
2866 actual_filter_sz
= spec_filter_size(kern_spec_mask
,
2869 if (actual_filter_sz
<= 0)
2871 ib_spec
->tunnel
.size
= sizeof(struct ib_flow_spec_tunnel
);
2872 memcpy(&ib_spec
->tunnel
.val
, kern_spec_val
, actual_filter_sz
);
2873 memcpy(&ib_spec
->tunnel
.mask
, kern_spec_mask
, actual_filter_sz
);
2875 if ((ntohl(ib_spec
->tunnel
.mask
.tunnel_id
)) >= BIT(24) ||
2876 (ntohl(ib_spec
->tunnel
.val
.tunnel_id
)) >= BIT(24))
2885 static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec
*kern_spec
,
2886 union ib_flow_spec
*ib_spec
)
2888 if (kern_spec
->reserved
)
2891 if (kern_spec
->type
>= IB_FLOW_SPEC_ACTION_TAG
)
2892 return kern_spec_to_ib_spec_action(kern_spec
, ib_spec
);
2894 return kern_spec_to_ib_spec_filter(kern_spec
, ib_spec
);
2897 int ib_uverbs_ex_create_wq(struct ib_uverbs_file
*file
,
2898 struct ib_device
*ib_dev
,
2899 struct ib_udata
*ucore
,
2900 struct ib_udata
*uhw
)
2902 struct ib_uverbs_ex_create_wq cmd
= {};
2903 struct ib_uverbs_ex_create_wq_resp resp
= {};
2904 struct ib_uwq_object
*obj
;
2909 struct ib_wq_init_attr wq_init_attr
= {};
2910 size_t required_cmd_sz
;
2911 size_t required_resp_len
;
2913 required_cmd_sz
= offsetof(typeof(cmd
), max_sge
) + sizeof(cmd
.max_sge
);
2914 required_resp_len
= offsetof(typeof(resp
), wqn
) + sizeof(resp
.wqn
);
2916 if (ucore
->inlen
< required_cmd_sz
)
2919 if (ucore
->outlen
< required_resp_len
)
2922 if (ucore
->inlen
> sizeof(cmd
) &&
2923 !ib_is_udata_cleared(ucore
, sizeof(cmd
),
2924 ucore
->inlen
- sizeof(cmd
)))
2927 err
= ib_copy_from_udata(&cmd
, ucore
, min(sizeof(cmd
), ucore
->inlen
));
2934 obj
= (struct ib_uwq_object
*)uobj_alloc(uobj_get_type(wq
),
2937 return PTR_ERR(obj
);
2939 pd
= uobj_get_obj_read(pd
, cmd
.pd_handle
, file
->ucontext
);
2945 cq
= uobj_get_obj_read(cq
, cmd
.cq_handle
, file
->ucontext
);
2951 wq_init_attr
.cq
= cq
;
2952 wq_init_attr
.max_sge
= cmd
.max_sge
;
2953 wq_init_attr
.max_wr
= cmd
.max_wr
;
2954 wq_init_attr
.wq_context
= file
;
2955 wq_init_attr
.wq_type
= cmd
.wq_type
;
2956 wq_init_attr
.event_handler
= ib_uverbs_wq_event_handler
;
2957 if (ucore
->inlen
>= (offsetof(typeof(cmd
), create_flags
) +
2958 sizeof(cmd
.create_flags
)))
2959 wq_init_attr
.create_flags
= cmd
.create_flags
;
2960 obj
->uevent
.events_reported
= 0;
2961 INIT_LIST_HEAD(&obj
->uevent
.event_list
);
2962 wq
= pd
->device
->create_wq(pd
, &wq_init_attr
, uhw
);
2968 wq
->uobject
= &obj
->uevent
.uobject
;
2969 obj
->uevent
.uobject
.object
= wq
;
2970 wq
->wq_type
= wq_init_attr
.wq_type
;
2973 wq
->device
= pd
->device
;
2974 wq
->wq_context
= wq_init_attr
.wq_context
;
2975 atomic_set(&wq
->usecnt
, 0);
2976 atomic_inc(&pd
->usecnt
);
2977 atomic_inc(&cq
->usecnt
);
2978 wq
->uobject
= &obj
->uevent
.uobject
;
2979 obj
->uevent
.uobject
.object
= wq
;
2981 memset(&resp
, 0, sizeof(resp
));
2982 resp
.wq_handle
= obj
->uevent
.uobject
.id
;
2983 resp
.max_sge
= wq_init_attr
.max_sge
;
2984 resp
.max_wr
= wq_init_attr
.max_wr
;
2985 resp
.wqn
= wq
->wq_num
;
2986 resp
.response_length
= required_resp_len
;
2987 err
= ib_copy_to_udata(ucore
,
2988 &resp
, resp
.response_length
);
2992 uobj_put_obj_read(pd
);
2993 uobj_put_obj_read(cq
);
2994 uobj_alloc_commit(&obj
->uevent
.uobject
);
3000 uobj_put_obj_read(cq
);
3002 uobj_put_obj_read(pd
);
3004 uobj_alloc_abort(&obj
->uevent
.uobject
);
3009 int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file
*file
,
3010 struct ib_device
*ib_dev
,
3011 struct ib_udata
*ucore
,
3012 struct ib_udata
*uhw
)
3014 struct ib_uverbs_ex_destroy_wq cmd
= {};
3015 struct ib_uverbs_ex_destroy_wq_resp resp
= {};
3016 struct ib_uobject
*uobj
;
3017 struct ib_uwq_object
*obj
;
3018 size_t required_cmd_sz
;
3019 size_t required_resp_len
;
3022 required_cmd_sz
= offsetof(typeof(cmd
), wq_handle
) + sizeof(cmd
.wq_handle
);
3023 required_resp_len
= offsetof(typeof(resp
), reserved
) + sizeof(resp
.reserved
);
3025 if (ucore
->inlen
< required_cmd_sz
)
3028 if (ucore
->outlen
< required_resp_len
)
3031 if (ucore
->inlen
> sizeof(cmd
) &&
3032 !ib_is_udata_cleared(ucore
, sizeof(cmd
),
3033 ucore
->inlen
- sizeof(cmd
)))
3036 ret
= ib_copy_from_udata(&cmd
, ucore
, min(sizeof(cmd
), ucore
->inlen
));
3043 resp
.response_length
= required_resp_len
;
3044 uobj
= uobj_get_write(uobj_get_type(wq
), cmd
.wq_handle
,
3047 return PTR_ERR(uobj
);
3049 obj
= container_of(uobj
, struct ib_uwq_object
, uevent
.uobject
);
3051 * Make sure we don't free the memory in remove_commit as we still
3052 * needs the uobject memory to create the response.
3054 uverbs_uobject_get(uobj
);
3056 ret
= uobj_remove_commit(uobj
);
3057 resp
.events_reported
= obj
->uevent
.events_reported
;
3058 uverbs_uobject_put(uobj
);
3062 return ib_copy_to_udata(ucore
, &resp
, resp
.response_length
);
3065 int ib_uverbs_ex_modify_wq(struct ib_uverbs_file
*file
,
3066 struct ib_device
*ib_dev
,
3067 struct ib_udata
*ucore
,
3068 struct ib_udata
*uhw
)
3070 struct ib_uverbs_ex_modify_wq cmd
= {};
3072 struct ib_wq_attr wq_attr
= {};
3073 size_t required_cmd_sz
;
3076 required_cmd_sz
= offsetof(typeof(cmd
), curr_wq_state
) + sizeof(cmd
.curr_wq_state
);
3077 if (ucore
->inlen
< required_cmd_sz
)
3080 if (ucore
->inlen
> sizeof(cmd
) &&
3081 !ib_is_udata_cleared(ucore
, sizeof(cmd
),
3082 ucore
->inlen
- sizeof(cmd
)))
3085 ret
= ib_copy_from_udata(&cmd
, ucore
, min(sizeof(cmd
), ucore
->inlen
));
3092 if (cmd
.attr_mask
> (IB_WQ_STATE
| IB_WQ_CUR_STATE
| IB_WQ_FLAGS
))
3095 wq
= uobj_get_obj_read(wq
, cmd
.wq_handle
, file
->ucontext
);
3099 wq_attr
.curr_wq_state
= cmd
.curr_wq_state
;
3100 wq_attr
.wq_state
= cmd
.wq_state
;
3101 if (cmd
.attr_mask
& IB_WQ_FLAGS
) {
3102 wq_attr
.flags
= cmd
.flags
;
3103 wq_attr
.flags_mask
= cmd
.flags_mask
;
3105 ret
= wq
->device
->modify_wq(wq
, &wq_attr
, cmd
.attr_mask
, uhw
);
3106 uobj_put_obj_read(wq
);
3110 int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file
*file
,
3111 struct ib_device
*ib_dev
,
3112 struct ib_udata
*ucore
,
3113 struct ib_udata
*uhw
)
3115 struct ib_uverbs_ex_create_rwq_ind_table cmd
= {};
3116 struct ib_uverbs_ex_create_rwq_ind_table_resp resp
= {};
3117 struct ib_uobject
*uobj
;
3119 struct ib_rwq_ind_table_init_attr init_attr
= {};
3120 struct ib_rwq_ind_table
*rwq_ind_tbl
;
3121 struct ib_wq
**wqs
= NULL
;
3122 u32
*wqs_handles
= NULL
;
3123 struct ib_wq
*wq
= NULL
;
3124 int i
, j
, num_read_wqs
;
3126 u32 expected_in_size
;
3127 size_t required_cmd_sz_header
;
3128 size_t required_resp_len
;
3130 required_cmd_sz_header
= offsetof(typeof(cmd
), log_ind_tbl_size
) + sizeof(cmd
.log_ind_tbl_size
);
3131 required_resp_len
= offsetof(typeof(resp
), ind_tbl_num
) + sizeof(resp
.ind_tbl_num
);
3133 if (ucore
->inlen
< required_cmd_sz_header
)
3136 if (ucore
->outlen
< required_resp_len
)
3139 err
= ib_copy_from_udata(&cmd
, ucore
, required_cmd_sz_header
);
3143 ucore
->inbuf
+= required_cmd_sz_header
;
3144 ucore
->inlen
-= required_cmd_sz_header
;
3149 if (cmd
.log_ind_tbl_size
> IB_USER_VERBS_MAX_LOG_IND_TBL_SIZE
)
3152 num_wq_handles
= 1 << cmd
.log_ind_tbl_size
;
3153 expected_in_size
= num_wq_handles
* sizeof(__u32
);
3154 if (num_wq_handles
== 1)
3155 /* input size for wq handles is u64 aligned */
3156 expected_in_size
+= sizeof(__u32
);
3158 if (ucore
->inlen
< expected_in_size
)
3161 if (ucore
->inlen
> expected_in_size
&&
3162 !ib_is_udata_cleared(ucore
, expected_in_size
,
3163 ucore
->inlen
- expected_in_size
))
3166 wqs_handles
= kcalloc(num_wq_handles
, sizeof(*wqs_handles
),
3171 err
= ib_copy_from_udata(wqs_handles
, ucore
,
3172 num_wq_handles
* sizeof(__u32
));
3176 wqs
= kcalloc(num_wq_handles
, sizeof(*wqs
), GFP_KERNEL
);
3182 for (num_read_wqs
= 0; num_read_wqs
< num_wq_handles
;
3184 wq
= uobj_get_obj_read(wq
, wqs_handles
[num_read_wqs
],
3191 wqs
[num_read_wqs
] = wq
;
3194 uobj
= uobj_alloc(uobj_get_type(rwq_ind_table
), file
->ucontext
);
3196 err
= PTR_ERR(uobj
);
3200 init_attr
.log_ind_tbl_size
= cmd
.log_ind_tbl_size
;
3201 init_attr
.ind_tbl
= wqs
;
3202 rwq_ind_tbl
= ib_dev
->create_rwq_ind_table(ib_dev
, &init_attr
, uhw
);
3204 if (IS_ERR(rwq_ind_tbl
)) {
3205 err
= PTR_ERR(rwq_ind_tbl
);
3209 rwq_ind_tbl
->ind_tbl
= wqs
;
3210 rwq_ind_tbl
->log_ind_tbl_size
= init_attr
.log_ind_tbl_size
;
3211 rwq_ind_tbl
->uobject
= uobj
;
3212 uobj
->object
= rwq_ind_tbl
;
3213 rwq_ind_tbl
->device
= ib_dev
;
3214 atomic_set(&rwq_ind_tbl
->usecnt
, 0);
3216 for (i
= 0; i
< num_wq_handles
; i
++)
3217 atomic_inc(&wqs
[i
]->usecnt
);
3219 resp
.ind_tbl_handle
= uobj
->id
;
3220 resp
.ind_tbl_num
= rwq_ind_tbl
->ind_tbl_num
;
3221 resp
.response_length
= required_resp_len
;
3223 err
= ib_copy_to_udata(ucore
,
3224 &resp
, resp
.response_length
);
3230 for (j
= 0; j
< num_read_wqs
; j
++)
3231 uobj_put_obj_read(wqs
[j
]);
3233 uobj_alloc_commit(uobj
);
3237 ib_destroy_rwq_ind_table(rwq_ind_tbl
);
3239 uobj_alloc_abort(uobj
);
3241 for (j
= 0; j
< num_read_wqs
; j
++)
3242 uobj_put_obj_read(wqs
[j
]);
3249 int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file
*file
,
3250 struct ib_device
*ib_dev
,
3251 struct ib_udata
*ucore
,
3252 struct ib_udata
*uhw
)
3254 struct ib_uverbs_ex_destroy_rwq_ind_table cmd
= {};
3255 struct ib_uobject
*uobj
;
3257 size_t required_cmd_sz
;
3259 required_cmd_sz
= offsetof(typeof(cmd
), ind_tbl_handle
) + sizeof(cmd
.ind_tbl_handle
);
3261 if (ucore
->inlen
< required_cmd_sz
)
3264 if (ucore
->inlen
> sizeof(cmd
) &&
3265 !ib_is_udata_cleared(ucore
, sizeof(cmd
),
3266 ucore
->inlen
- sizeof(cmd
)))
3269 ret
= ib_copy_from_udata(&cmd
, ucore
, min(sizeof(cmd
), ucore
->inlen
));
3276 uobj
= uobj_get_write(uobj_get_type(rwq_ind_table
), cmd
.ind_tbl_handle
,
3279 return PTR_ERR(uobj
);
3281 return uobj_remove_commit(uobj
);
3284 int ib_uverbs_ex_create_flow(struct ib_uverbs_file
*file
,
3285 struct ib_device
*ib_dev
,
3286 struct ib_udata
*ucore
,
3287 struct ib_udata
*uhw
)
3289 struct ib_uverbs_create_flow cmd
;
3290 struct ib_uverbs_create_flow_resp resp
;
3291 struct ib_uobject
*uobj
;
3292 struct ib_flow
*flow_id
;
3293 struct ib_uverbs_flow_attr
*kern_flow_attr
;
3294 struct ib_flow_attr
*flow_attr
;
3301 if (ucore
->inlen
< sizeof(cmd
))
3304 if (ucore
->outlen
< sizeof(resp
))
3307 err
= ib_copy_from_udata(&cmd
, ucore
, sizeof(cmd
));
3311 ucore
->inbuf
+= sizeof(cmd
);
3312 ucore
->inlen
-= sizeof(cmd
);
3317 if (!capable(CAP_NET_RAW
))
3320 if (cmd
.flow_attr
.flags
>= IB_FLOW_ATTR_FLAGS_RESERVED
)
3323 if ((cmd
.flow_attr
.flags
& IB_FLOW_ATTR_FLAGS_DONT_TRAP
) &&
3324 ((cmd
.flow_attr
.type
== IB_FLOW_ATTR_ALL_DEFAULT
) ||
3325 (cmd
.flow_attr
.type
== IB_FLOW_ATTR_MC_DEFAULT
)))
3328 if (cmd
.flow_attr
.num_of_specs
> IB_FLOW_SPEC_SUPPORT_LAYERS
)
3331 if (cmd
.flow_attr
.size
> ucore
->inlen
||
3332 cmd
.flow_attr
.size
>
3333 (cmd
.flow_attr
.num_of_specs
* sizeof(struct ib_uverbs_flow_spec
)))
3336 if (cmd
.flow_attr
.reserved
[0] ||
3337 cmd
.flow_attr
.reserved
[1])
3340 if (cmd
.flow_attr
.num_of_specs
) {
3341 kern_flow_attr
= kmalloc(sizeof(*kern_flow_attr
) + cmd
.flow_attr
.size
,
3343 if (!kern_flow_attr
)
3346 memcpy(kern_flow_attr
, &cmd
.flow_attr
, sizeof(*kern_flow_attr
));
3347 err
= ib_copy_from_udata(kern_flow_attr
+ 1, ucore
,
3348 cmd
.flow_attr
.size
);
3352 kern_flow_attr
= &cmd
.flow_attr
;
3355 uobj
= uobj_alloc(uobj_get_type(flow
), file
->ucontext
);
3357 err
= PTR_ERR(uobj
);
3361 qp
= uobj_get_obj_read(qp
, cmd
.qp_handle
, file
->ucontext
);
3367 flow_attr
= kzalloc(sizeof(*flow_attr
) + cmd
.flow_attr
.num_of_specs
*
3368 sizeof(union ib_flow_spec
), GFP_KERNEL
);
3374 flow_attr
->type
= kern_flow_attr
->type
;
3375 flow_attr
->priority
= kern_flow_attr
->priority
;
3376 flow_attr
->num_of_specs
= kern_flow_attr
->num_of_specs
;
3377 flow_attr
->port
= kern_flow_attr
->port
;
3378 flow_attr
->flags
= kern_flow_attr
->flags
;
3379 flow_attr
->size
= sizeof(*flow_attr
);
3381 kern_spec
= kern_flow_attr
+ 1;
3382 ib_spec
= flow_attr
+ 1;
3383 for (i
= 0; i
< flow_attr
->num_of_specs
&&
3384 cmd
.flow_attr
.size
> offsetof(struct ib_uverbs_flow_spec
, reserved
) &&
3385 cmd
.flow_attr
.size
>=
3386 ((struct ib_uverbs_flow_spec
*)kern_spec
)->size
; i
++) {
3387 err
= kern_spec_to_ib_spec(kern_spec
, ib_spec
);
3391 ((union ib_flow_spec
*) ib_spec
)->size
;
3392 cmd
.flow_attr
.size
-= ((struct ib_uverbs_flow_spec
*)kern_spec
)->size
;
3393 kern_spec
+= ((struct ib_uverbs_flow_spec
*) kern_spec
)->size
;
3394 ib_spec
+= ((union ib_flow_spec
*) ib_spec
)->size
;
3396 if (cmd
.flow_attr
.size
|| (i
!= flow_attr
->num_of_specs
)) {
3397 pr_warn("create flow failed, flow %d: %d bytes left from uverb cmd\n",
3398 i
, cmd
.flow_attr
.size
);
3402 flow_id
= ib_create_flow(qp
, flow_attr
, IB_FLOW_DOMAIN_USER
);
3403 if (IS_ERR(flow_id
)) {
3404 err
= PTR_ERR(flow_id
);
3407 flow_id
->uobject
= uobj
;
3408 uobj
->object
= flow_id
;
3410 memset(&resp
, 0, sizeof(resp
));
3411 resp
.flow_handle
= uobj
->id
;
3413 err
= ib_copy_to_udata(ucore
,
3414 &resp
, sizeof(resp
));
3418 uobj_put_obj_read(qp
);
3419 uobj_alloc_commit(uobj
);
3421 if (cmd
.flow_attr
.num_of_specs
)
3422 kfree(kern_flow_attr
);
3425 ib_destroy_flow(flow_id
);
3429 uobj_put_obj_read(qp
);
3431 uobj_alloc_abort(uobj
);
3433 if (cmd
.flow_attr
.num_of_specs
)
3434 kfree(kern_flow_attr
);
3438 int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file
*file
,
3439 struct ib_device
*ib_dev
,
3440 struct ib_udata
*ucore
,
3441 struct ib_udata
*uhw
)
3443 struct ib_uverbs_destroy_flow cmd
;
3444 struct ib_uobject
*uobj
;
3447 if (ucore
->inlen
< sizeof(cmd
))
3450 ret
= ib_copy_from_udata(&cmd
, ucore
, sizeof(cmd
));
3457 uobj
= uobj_get_write(uobj_get_type(flow
), cmd
.flow_handle
,
3460 return PTR_ERR(uobj
);
3462 ret
= uobj_remove_commit(uobj
);
3466 static int __uverbs_create_xsrq(struct ib_uverbs_file
*file
,
3467 struct ib_device
*ib_dev
,
3468 struct ib_uverbs_create_xsrq
*cmd
,
3469 struct ib_udata
*udata
)
3471 struct ib_uverbs_create_srq_resp resp
;
3472 struct ib_usrq_object
*obj
;
3475 struct ib_uobject
*uninitialized_var(xrcd_uobj
);
3476 struct ib_srq_init_attr attr
;
3479 obj
= (struct ib_usrq_object
*)uobj_alloc(uobj_get_type(srq
),
3482 return PTR_ERR(obj
);
3484 if (cmd
->srq_type
== IB_SRQT_TM
)
3485 attr
.ext
.tag_matching
.max_num_tags
= cmd
->max_num_tags
;
3487 if (cmd
->srq_type
== IB_SRQT_XRC
) {
3488 xrcd_uobj
= uobj_get_read(uobj_get_type(xrcd
), cmd
->xrcd_handle
,
3490 if (IS_ERR(xrcd_uobj
)) {
3495 attr
.ext
.xrc
.xrcd
= (struct ib_xrcd
*)xrcd_uobj
->object
;
3496 if (!attr
.ext
.xrc
.xrcd
) {
3501 obj
->uxrcd
= container_of(xrcd_uobj
, struct ib_uxrcd_object
, uobject
);
3502 atomic_inc(&obj
->uxrcd
->refcnt
);
3505 if (ib_srq_has_cq(cmd
->srq_type
)) {
3506 attr
.ext
.cq
= uobj_get_obj_read(cq
, cmd
->cq_handle
,
3514 pd
= uobj_get_obj_read(pd
, cmd
->pd_handle
, file
->ucontext
);
3520 attr
.event_handler
= ib_uverbs_srq_event_handler
;
3521 attr
.srq_context
= file
;
3522 attr
.srq_type
= cmd
->srq_type
;
3523 attr
.attr
.max_wr
= cmd
->max_wr
;
3524 attr
.attr
.max_sge
= cmd
->max_sge
;
3525 attr
.attr
.srq_limit
= cmd
->srq_limit
;
3527 obj
->uevent
.events_reported
= 0;
3528 INIT_LIST_HEAD(&obj
->uevent
.event_list
);
3530 srq
= pd
->device
->create_srq(pd
, &attr
, udata
);
3536 srq
->device
= pd
->device
;
3538 srq
->srq_type
= cmd
->srq_type
;
3539 srq
->uobject
= &obj
->uevent
.uobject
;
3540 srq
->event_handler
= attr
.event_handler
;
3541 srq
->srq_context
= attr
.srq_context
;
3543 if (ib_srq_has_cq(cmd
->srq_type
)) {
3544 srq
->ext
.cq
= attr
.ext
.cq
;
3545 atomic_inc(&attr
.ext
.cq
->usecnt
);
3548 if (cmd
->srq_type
== IB_SRQT_XRC
) {
3549 srq
->ext
.xrc
.xrcd
= attr
.ext
.xrc
.xrcd
;
3550 atomic_inc(&attr
.ext
.xrc
.xrcd
->usecnt
);
3553 atomic_inc(&pd
->usecnt
);
3554 atomic_set(&srq
->usecnt
, 0);
3556 obj
->uevent
.uobject
.object
= srq
;
3557 obj
->uevent
.uobject
.user_handle
= cmd
->user_handle
;
3559 memset(&resp
, 0, sizeof resp
);
3560 resp
.srq_handle
= obj
->uevent
.uobject
.id
;
3561 resp
.max_wr
= attr
.attr
.max_wr
;
3562 resp
.max_sge
= attr
.attr
.max_sge
;
3563 if (cmd
->srq_type
== IB_SRQT_XRC
)
3564 resp
.srqn
= srq
->ext
.xrc
.srq_num
;
3566 if (copy_to_user((void __user
*) (unsigned long) cmd
->response
,
3567 &resp
, sizeof resp
)) {
3572 if (cmd
->srq_type
== IB_SRQT_XRC
)
3573 uobj_put_read(xrcd_uobj
);
3575 if (ib_srq_has_cq(cmd
->srq_type
))
3576 uobj_put_obj_read(attr
.ext
.cq
);
3578 uobj_put_obj_read(pd
);
3579 uobj_alloc_commit(&obj
->uevent
.uobject
);
3584 ib_destroy_srq(srq
);
3587 uobj_put_obj_read(pd
);
3590 if (ib_srq_has_cq(cmd
->srq_type
))
3591 uobj_put_obj_read(attr
.ext
.cq
);
3594 if (cmd
->srq_type
== IB_SRQT_XRC
) {
3595 atomic_dec(&obj
->uxrcd
->refcnt
);
3596 uobj_put_read(xrcd_uobj
);
3600 uobj_alloc_abort(&obj
->uevent
.uobject
);
3604 ssize_t
ib_uverbs_create_srq(struct ib_uverbs_file
*file
,
3605 struct ib_device
*ib_dev
,
3606 const char __user
*buf
, int in_len
,
3609 struct ib_uverbs_create_srq cmd
;
3610 struct ib_uverbs_create_xsrq xcmd
;
3611 struct ib_uverbs_create_srq_resp resp
;
3612 struct ib_udata udata
;
3615 if (out_len
< sizeof resp
)
3618 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
3621 memset(&xcmd
, 0, sizeof(xcmd
));
3622 xcmd
.response
= cmd
.response
;
3623 xcmd
.user_handle
= cmd
.user_handle
;
3624 xcmd
.srq_type
= IB_SRQT_BASIC
;
3625 xcmd
.pd_handle
= cmd
.pd_handle
;
3626 xcmd
.max_wr
= cmd
.max_wr
;
3627 xcmd
.max_sge
= cmd
.max_sge
;
3628 xcmd
.srq_limit
= cmd
.srq_limit
;
3630 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
3631 (unsigned long) cmd
.response
+ sizeof(resp
),
3632 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
3633 out_len
- sizeof(resp
));
3635 ret
= __uverbs_create_xsrq(file
, ib_dev
, &xcmd
, &udata
);
3642 ssize_t
ib_uverbs_create_xsrq(struct ib_uverbs_file
*file
,
3643 struct ib_device
*ib_dev
,
3644 const char __user
*buf
, int in_len
, int out_len
)
3646 struct ib_uverbs_create_xsrq cmd
;
3647 struct ib_uverbs_create_srq_resp resp
;
3648 struct ib_udata udata
;
3651 if (out_len
< sizeof resp
)
3654 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
3657 INIT_UDATA(&udata
, buf
+ sizeof(cmd
),
3658 (unsigned long) cmd
.response
+ sizeof(resp
),
3659 in_len
- sizeof(cmd
) - sizeof(struct ib_uverbs_cmd_hdr
),
3660 out_len
- sizeof(resp
));
3662 ret
= __uverbs_create_xsrq(file
, ib_dev
, &cmd
, &udata
);
3669 ssize_t
ib_uverbs_modify_srq(struct ib_uverbs_file
*file
,
3670 struct ib_device
*ib_dev
,
3671 const char __user
*buf
, int in_len
,
3674 struct ib_uverbs_modify_srq cmd
;
3675 struct ib_udata udata
;
3677 struct ib_srq_attr attr
;
3680 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
3683 INIT_UDATA(&udata
, buf
+ sizeof cmd
, NULL
, in_len
- sizeof cmd
,
3686 srq
= uobj_get_obj_read(srq
, cmd
.srq_handle
, file
->ucontext
);
3690 attr
.max_wr
= cmd
.max_wr
;
3691 attr
.srq_limit
= cmd
.srq_limit
;
3693 ret
= srq
->device
->modify_srq(srq
, &attr
, cmd
.attr_mask
, &udata
);
3695 uobj_put_obj_read(srq
);
3697 return ret
? ret
: in_len
;
3700 ssize_t
ib_uverbs_query_srq(struct ib_uverbs_file
*file
,
3701 struct ib_device
*ib_dev
,
3702 const char __user
*buf
,
3703 int in_len
, int out_len
)
3705 struct ib_uverbs_query_srq cmd
;
3706 struct ib_uverbs_query_srq_resp resp
;
3707 struct ib_srq_attr attr
;
3711 if (out_len
< sizeof resp
)
3714 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
3717 srq
= uobj_get_obj_read(srq
, cmd
.srq_handle
, file
->ucontext
);
3721 ret
= ib_query_srq(srq
, &attr
);
3723 uobj_put_obj_read(srq
);
3728 memset(&resp
, 0, sizeof resp
);
3730 resp
.max_wr
= attr
.max_wr
;
3731 resp
.max_sge
= attr
.max_sge
;
3732 resp
.srq_limit
= attr
.srq_limit
;
3734 if (copy_to_user((void __user
*) (unsigned long) cmd
.response
,
3735 &resp
, sizeof resp
))
3741 ssize_t
ib_uverbs_destroy_srq(struct ib_uverbs_file
*file
,
3742 struct ib_device
*ib_dev
,
3743 const char __user
*buf
, int in_len
,
3746 struct ib_uverbs_destroy_srq cmd
;
3747 struct ib_uverbs_destroy_srq_resp resp
;
3748 struct ib_uobject
*uobj
;
3749 struct ib_uevent_object
*obj
;
3752 if (copy_from_user(&cmd
, buf
, sizeof cmd
))
3755 uobj
= uobj_get_write(uobj_get_type(srq
), cmd
.srq_handle
,
3758 return PTR_ERR(uobj
);
3760 obj
= container_of(uobj
, struct ib_uevent_object
, uobject
);
3762 * Make sure we don't free the memory in remove_commit as we still
3763 * needs the uobject memory to create the response.
3765 uverbs_uobject_get(uobj
);
3767 memset(&resp
, 0, sizeof(resp
));
3769 ret
= uobj_remove_commit(uobj
);
3771 uverbs_uobject_put(uobj
);
3774 resp
.events_reported
= obj
->events_reported
;
3775 uverbs_uobject_put(uobj
);
3776 if (copy_to_user((void __user
*)(unsigned long)cmd
.response
,
3777 &resp
, sizeof(resp
)))
3783 int ib_uverbs_ex_query_device(struct ib_uverbs_file
*file
,
3784 struct ib_device
*ib_dev
,
3785 struct ib_udata
*ucore
,
3786 struct ib_udata
*uhw
)
3788 struct ib_uverbs_ex_query_device_resp resp
= { {0} };
3789 struct ib_uverbs_ex_query_device cmd
;
3790 struct ib_device_attr attr
= {0};
3793 if (ucore
->inlen
< sizeof(cmd
))
3796 err
= ib_copy_from_udata(&cmd
, ucore
, sizeof(cmd
));
3806 resp
.response_length
= offsetof(typeof(resp
), odp_caps
);
3808 if (ucore
->outlen
< resp
.response_length
)
3811 err
= ib_dev
->query_device(ib_dev
, &attr
, uhw
);
3815 copy_query_dev_fields(file
, ib_dev
, &resp
.base
, &attr
);
3817 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.odp_caps
))
3820 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
3821 resp
.odp_caps
.general_caps
= attr
.odp_caps
.general_caps
;
3822 resp
.odp_caps
.per_transport_caps
.rc_odp_caps
=
3823 attr
.odp_caps
.per_transport_caps
.rc_odp_caps
;
3824 resp
.odp_caps
.per_transport_caps
.uc_odp_caps
=
3825 attr
.odp_caps
.per_transport_caps
.uc_odp_caps
;
3826 resp
.odp_caps
.per_transport_caps
.ud_odp_caps
=
3827 attr
.odp_caps
.per_transport_caps
.ud_odp_caps
;
3829 resp
.response_length
+= sizeof(resp
.odp_caps
);
3831 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.timestamp_mask
))
3834 resp
.timestamp_mask
= attr
.timestamp_mask
;
3835 resp
.response_length
+= sizeof(resp
.timestamp_mask
);
3837 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.hca_core_clock
))
3840 resp
.hca_core_clock
= attr
.hca_core_clock
;
3841 resp
.response_length
+= sizeof(resp
.hca_core_clock
);
3843 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.device_cap_flags_ex
))
3846 resp
.device_cap_flags_ex
= attr
.device_cap_flags
;
3847 resp
.response_length
+= sizeof(resp
.device_cap_flags_ex
);
3849 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.rss_caps
))
3852 resp
.rss_caps
.supported_qpts
= attr
.rss_caps
.supported_qpts
;
3853 resp
.rss_caps
.max_rwq_indirection_tables
=
3854 attr
.rss_caps
.max_rwq_indirection_tables
;
3855 resp
.rss_caps
.max_rwq_indirection_table_size
=
3856 attr
.rss_caps
.max_rwq_indirection_table_size
;
3858 resp
.response_length
+= sizeof(resp
.rss_caps
);
3860 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.max_wq_type_rq
))
3863 resp
.max_wq_type_rq
= attr
.max_wq_type_rq
;
3864 resp
.response_length
+= sizeof(resp
.max_wq_type_rq
);
3866 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.raw_packet_caps
))
3869 resp
.raw_packet_caps
= attr
.raw_packet_caps
;
3870 resp
.response_length
+= sizeof(resp
.raw_packet_caps
);
3872 if (ucore
->outlen
< resp
.response_length
+ sizeof(resp
.tm_caps
))
3875 resp
.tm_caps
.max_rndv_hdr_size
= attr
.tm_caps
.max_rndv_hdr_size
;
3876 resp
.tm_caps
.max_num_tags
= attr
.tm_caps
.max_num_tags
;
3877 resp
.tm_caps
.max_ops
= attr
.tm_caps
.max_ops
;
3878 resp
.tm_caps
.max_sge
= attr
.tm_caps
.max_sge
;
3879 resp
.tm_caps
.flags
= attr
.tm_caps
.flags
;
3880 resp
.response_length
+= sizeof(resp
.tm_caps
);
3882 err
= ib_copy_to_udata(ucore
, &resp
, resp
.response_length
);