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"
51 * Copy a response to userspace. If the provided 'resp' is larger than the
52 * user buffer it is silently truncated. If the user provided a larger buffer
53 * then the trailing portion is zero filled.
55 * These semantics are intended to support future extension of the output
58 static int uverbs_response(struct uverbs_attr_bundle *attrs, const void *resp,
63 if (uverbs_attr_is_valid(attrs, UVERBS_ATTR_CORE_OUT))
64 return uverbs_copy_to_struct_or_zero(
65 attrs, UVERBS_ATTR_CORE_OUT, resp, resp_len);
67 if (copy_to_user(attrs->ucore.outbuf, resp,
68 min(attrs->ucore.outlen, resp_len)))
71 if (resp_len < attrs->ucore.outlen) {
73 * Zero fill any extra memory that user
74 * space might have provided.
76 ret = clear_user(attrs->ucore.outbuf + resp_len,
77 attrs->ucore.outlen - resp_len);
86 * Copy a request from userspace. If the provided 'req' is larger than the
87 * user buffer then the user buffer is zero extended into the 'req'. If 'req'
88 * is smaller than the user buffer then the uncopied bytes in the user buffer
91 static int uverbs_request(struct uverbs_attr_bundle *attrs, void *req,
94 if (copy_from_user(req, attrs->ucore.inbuf,
95 min(attrs->ucore.inlen, req_len)))
98 if (attrs->ucore.inlen < req_len) {
99 memset(req + attrs->ucore.inlen, 0,
100 req_len - attrs->ucore.inlen);
101 } else if (attrs->ucore.inlen > req_len) {
102 if (!ib_is_buffer_cleared(attrs->ucore.inbuf + req_len,
103 attrs->ucore.inlen - req_len))
110 * Generate the value for the 'response_length' protocol used by write_ex.
111 * This is the number of bytes the kernel actually wrote. Userspace can use
112 * this to detect what structure members in the response the kernel
115 static u32 uverbs_response_length(struct uverbs_attr_bundle *attrs,
118 return min_t(size_t, attrs->ucore.outlen, resp_len);
122 * The iterator version of the request interface is for handlers that need to
123 * step over a flex array at the end of a command header.
125 struct uverbs_req_iter {
126 const void __user *cur;
127 const void __user *end;
130 static int uverbs_request_start(struct uverbs_attr_bundle *attrs,
131 struct uverbs_req_iter *iter,
135 if (attrs->ucore.inlen < req_len)
138 if (copy_from_user(req, attrs->ucore.inbuf, req_len))
141 iter->cur = attrs->ucore.inbuf + req_len;
142 iter->end = attrs->ucore.inbuf + attrs->ucore.inlen;
146 static int uverbs_request_next(struct uverbs_req_iter *iter, void *val,
149 if (iter->cur + len > iter->end)
152 if (copy_from_user(val, iter->cur, len))
159 static const void __user *uverbs_request_next_ptr(struct uverbs_req_iter *iter,
162 const void __user *res = iter->cur;
164 if (iter->cur + len > iter->end)
165 return (void __force __user *)ERR_PTR(-ENOSPC);
170 static int uverbs_request_finish(struct uverbs_req_iter *iter)
172 if (!ib_is_buffer_cleared(iter->cur, iter->end - iter->cur))
178 * When calling a destroy function during an error unwind we need to pass in
179 * the udata that is sanitized of all user arguments. Ie from the driver
180 * perspective it looks like no udata was passed.
182 struct ib_udata *uverbs_get_cleared_udata(struct uverbs_attr_bundle *attrs)
184 attrs->driver_udata = (struct ib_udata){};
185 return &attrs->driver_udata;
188 static struct ib_uverbs_completion_event_file *
189 _ib_uverbs_lookup_comp_file(s32 fd, struct uverbs_attr_bundle *attrs)
191 struct ib_uobject *uobj = ufd_get_read(UVERBS_OBJECT_COMP_CHANNEL,
197 uverbs_uobject_get(uobj);
200 return container_of(uobj, struct ib_uverbs_completion_event_file,
203 #define ib_uverbs_lookup_comp_file(_fd, _ufile) \
204 _ib_uverbs_lookup_comp_file((_fd)*typecheck(s32, _fd), _ufile)
206 int ib_alloc_ucontext(struct uverbs_attr_bundle *attrs)
208 struct ib_uverbs_file *ufile = attrs->ufile;
209 struct ib_ucontext *ucontext;
210 struct ib_device *ib_dev;
212 ib_dev = srcu_dereference(ufile->device->ib_dev,
213 &ufile->device->disassociate_srcu);
217 ucontext = rdma_zalloc_drv_obj(ib_dev, ib_ucontext);
221 ucontext->device = ib_dev;
222 ucontext->ufile = ufile;
223 xa_init_flags(&ucontext->mmap_xa, XA_FLAGS_ALLOC);
225 rdma_restrack_new(&ucontext->res, RDMA_RESTRACK_CTX);
226 rdma_restrack_set_name(&ucontext->res, NULL);
227 attrs->context = ucontext;
231 int ib_init_ucontext(struct uverbs_attr_bundle *attrs)
233 struct ib_ucontext *ucontext = attrs->context;
234 struct ib_uverbs_file *file = attrs->ufile;
237 if (!down_read_trylock(&file->hw_destroy_rwsem))
239 mutex_lock(&file->ucontext_lock);
240 if (file->ucontext) {
245 ret = ib_rdmacg_try_charge(&ucontext->cg_obj, ucontext->device,
246 RDMACG_RESOURCE_HCA_HANDLE);
250 ret = ucontext->device->ops.alloc_ucontext(ucontext,
251 &attrs->driver_udata);
255 rdma_restrack_add(&ucontext->res);
258 * Make sure that ib_uverbs_get_ucontext() sees the pointer update
259 * only after all writes to setup the ucontext have completed
261 smp_store_release(&file->ucontext, ucontext);
263 mutex_unlock(&file->ucontext_lock);
264 up_read(&file->hw_destroy_rwsem);
268 ib_rdmacg_uncharge(&ucontext->cg_obj, ucontext->device,
269 RDMACG_RESOURCE_HCA_HANDLE);
271 mutex_unlock(&file->ucontext_lock);
272 up_read(&file->hw_destroy_rwsem);
276 static int ib_uverbs_get_context(struct uverbs_attr_bundle *attrs)
278 struct ib_uverbs_get_context_resp resp;
279 struct ib_uverbs_get_context cmd;
280 struct ib_device *ib_dev;
281 struct ib_uobject *uobj;
284 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
288 ret = ib_alloc_ucontext(attrs);
292 uobj = uobj_alloc(UVERBS_OBJECT_ASYNC_EVENT, attrs, &ib_dev);
298 resp = (struct ib_uverbs_get_context_resp){
299 .num_comp_vectors = attrs->ufile->device->num_comp_vectors,
300 .async_fd = uobj->id,
302 ret = uverbs_response(attrs, &resp, sizeof(resp));
306 ret = ib_init_ucontext(attrs);
310 ib_uverbs_init_async_event_file(
311 container_of(uobj, struct ib_uverbs_async_event_file, uobj));
312 rdma_alloc_commit_uobject(uobj, attrs);
316 rdma_alloc_abort_uobject(uobj, attrs, false);
318 rdma_restrack_put(&attrs->context->res);
319 kfree(attrs->context);
320 attrs->context = NULL;
324 static void copy_query_dev_fields(struct ib_ucontext *ucontext,
325 struct ib_uverbs_query_device_resp *resp,
326 struct ib_device_attr *attr)
328 struct ib_device *ib_dev = ucontext->device;
330 resp->fw_ver = attr->fw_ver;
331 resp->node_guid = ib_dev->node_guid;
332 resp->sys_image_guid = attr->sys_image_guid;
333 resp->max_mr_size = attr->max_mr_size;
334 resp->page_size_cap = attr->page_size_cap;
335 resp->vendor_id = attr->vendor_id;
336 resp->vendor_part_id = attr->vendor_part_id;
337 resp->hw_ver = attr->hw_ver;
338 resp->max_qp = attr->max_qp;
339 resp->max_qp_wr = attr->max_qp_wr;
340 resp->device_cap_flags = lower_32_bits(attr->device_cap_flags);
341 resp->max_sge = min(attr->max_send_sge, attr->max_recv_sge);
342 resp->max_sge_rd = attr->max_sge_rd;
343 resp->max_cq = attr->max_cq;
344 resp->max_cqe = attr->max_cqe;
345 resp->max_mr = attr->max_mr;
346 resp->max_pd = attr->max_pd;
347 resp->max_qp_rd_atom = attr->max_qp_rd_atom;
348 resp->max_ee_rd_atom = attr->max_ee_rd_atom;
349 resp->max_res_rd_atom = attr->max_res_rd_atom;
350 resp->max_qp_init_rd_atom = attr->max_qp_init_rd_atom;
351 resp->max_ee_init_rd_atom = attr->max_ee_init_rd_atom;
352 resp->atomic_cap = attr->atomic_cap;
353 resp->max_ee = attr->max_ee;
354 resp->max_rdd = attr->max_rdd;
355 resp->max_mw = attr->max_mw;
356 resp->max_raw_ipv6_qp = attr->max_raw_ipv6_qp;
357 resp->max_raw_ethy_qp = attr->max_raw_ethy_qp;
358 resp->max_mcast_grp = attr->max_mcast_grp;
359 resp->max_mcast_qp_attach = attr->max_mcast_qp_attach;
360 resp->max_total_mcast_qp_attach = attr->max_total_mcast_qp_attach;
361 resp->max_ah = attr->max_ah;
362 resp->max_srq = attr->max_srq;
363 resp->max_srq_wr = attr->max_srq_wr;
364 resp->max_srq_sge = attr->max_srq_sge;
365 resp->max_pkeys = attr->max_pkeys;
366 resp->local_ca_ack_delay = attr->local_ca_ack_delay;
367 resp->phys_port_cnt = ib_dev->phys_port_cnt;
370 static int ib_uverbs_query_device(struct uverbs_attr_bundle *attrs)
372 struct ib_uverbs_query_device cmd;
373 struct ib_uverbs_query_device_resp resp;
374 struct ib_ucontext *ucontext;
377 ucontext = ib_uverbs_get_ucontext(attrs);
378 if (IS_ERR(ucontext))
379 return PTR_ERR(ucontext);
381 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
385 memset(&resp, 0, sizeof resp);
386 copy_query_dev_fields(ucontext, &resp, &ucontext->device->attrs);
388 return uverbs_response(attrs, &resp, sizeof(resp));
391 static int ib_uverbs_query_port(struct uverbs_attr_bundle *attrs)
393 struct ib_uverbs_query_port cmd;
394 struct ib_uverbs_query_port_resp resp;
395 struct ib_port_attr attr;
397 struct ib_ucontext *ucontext;
398 struct ib_device *ib_dev;
400 ucontext = ib_uverbs_get_ucontext(attrs);
401 if (IS_ERR(ucontext))
402 return PTR_ERR(ucontext);
403 ib_dev = ucontext->device;
405 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
409 ret = ib_query_port(ib_dev, cmd.port_num, &attr);
413 memset(&resp, 0, sizeof resp);
414 copy_port_attr_to_resp(&attr, &resp, ib_dev, cmd.port_num);
416 return uverbs_response(attrs, &resp, sizeof(resp));
419 static int ib_uverbs_alloc_pd(struct uverbs_attr_bundle *attrs)
421 struct ib_uverbs_alloc_pd_resp resp = {};
422 struct ib_uverbs_alloc_pd cmd;
423 struct ib_uobject *uobj;
426 struct ib_device *ib_dev;
428 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
432 uobj = uobj_alloc(UVERBS_OBJECT_PD, attrs, &ib_dev);
434 return PTR_ERR(uobj);
436 pd = rdma_zalloc_drv_obj(ib_dev, ib_pd);
444 atomic_set(&pd->usecnt, 0);
446 rdma_restrack_new(&pd->res, RDMA_RESTRACK_PD);
447 rdma_restrack_set_name(&pd->res, NULL);
449 ret = ib_dev->ops.alloc_pd(pd, &attrs->driver_udata);
452 rdma_restrack_add(&pd->res);
455 uobj_finalize_uobj_create(uobj, attrs);
457 resp.pd_handle = uobj->id;
458 return uverbs_response(attrs, &resp, sizeof(resp));
461 rdma_restrack_put(&pd->res);
464 uobj_alloc_abort(uobj, attrs);
468 static int ib_uverbs_dealloc_pd(struct uverbs_attr_bundle *attrs)
470 struct ib_uverbs_dealloc_pd cmd;
473 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
477 return uobj_perform_destroy(UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
480 struct xrcd_table_entry {
482 struct ib_xrcd *xrcd;
486 static int xrcd_table_insert(struct ib_uverbs_device *dev,
488 struct ib_xrcd *xrcd)
490 struct xrcd_table_entry *entry, *scan;
491 struct rb_node **p = &dev->xrcd_tree.rb_node;
492 struct rb_node *parent = NULL;
494 entry = kmalloc(sizeof *entry, GFP_KERNEL);
499 entry->inode = inode;
503 scan = rb_entry(parent, struct xrcd_table_entry, node);
505 if (inode < scan->inode) {
507 } else if (inode > scan->inode) {
515 rb_link_node(&entry->node, parent, p);
516 rb_insert_color(&entry->node, &dev->xrcd_tree);
521 static struct xrcd_table_entry *xrcd_table_search(struct ib_uverbs_device *dev,
524 struct xrcd_table_entry *entry;
525 struct rb_node *p = dev->xrcd_tree.rb_node;
528 entry = rb_entry(p, struct xrcd_table_entry, node);
530 if (inode < entry->inode)
532 else if (inode > entry->inode)
541 static struct ib_xrcd *find_xrcd(struct ib_uverbs_device *dev, struct inode *inode)
543 struct xrcd_table_entry *entry;
545 entry = xrcd_table_search(dev, inode);
552 static void xrcd_table_delete(struct ib_uverbs_device *dev,
555 struct xrcd_table_entry *entry;
557 entry = xrcd_table_search(dev, inode);
560 rb_erase(&entry->node, &dev->xrcd_tree);
565 static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs)
567 struct ib_uverbs_device *ibudev = attrs->ufile->device;
568 struct ib_uverbs_open_xrcd_resp resp = {};
569 struct ib_uverbs_open_xrcd cmd;
570 struct ib_uxrcd_object *obj;
571 struct ib_xrcd *xrcd = NULL;
572 struct inode *inode = NULL;
574 struct ib_device *ib_dev;
578 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
582 mutex_lock(&ibudev->xrcd_tree_mutex);
585 /* search for file descriptor */
589 goto err_tree_mutex_unlock;
592 inode = file_inode(f.file);
593 xrcd = find_xrcd(ibudev, inode);
594 if (!xrcd && !(cmd.oflags & O_CREAT)) {
595 /* no file descriptor. Need CREATE flag */
597 goto err_tree_mutex_unlock;
600 if (xrcd && cmd.oflags & O_EXCL) {
602 goto err_tree_mutex_unlock;
606 obj = (struct ib_uxrcd_object *)uobj_alloc(UVERBS_OBJECT_XRCD, attrs,
610 goto err_tree_mutex_unlock;
614 xrcd = ib_alloc_xrcd_user(ib_dev, inode, &attrs->driver_udata);
622 atomic_set(&obj->refcnt, 0);
623 obj->uobject.object = xrcd;
627 /* create new inode/xrcd table entry */
628 ret = xrcd_table_insert(ibudev, inode, xrcd);
630 goto err_dealloc_xrcd;
632 atomic_inc(&xrcd->usecnt);
638 mutex_unlock(&ibudev->xrcd_tree_mutex);
639 uobj_finalize_uobj_create(&obj->uobject, attrs);
641 resp.xrcd_handle = obj->uobject.id;
642 return uverbs_response(attrs, &resp, sizeof(resp));
645 ib_dealloc_xrcd_user(xrcd, uverbs_get_cleared_udata(attrs));
648 uobj_alloc_abort(&obj->uobject, attrs);
650 err_tree_mutex_unlock:
654 mutex_unlock(&ibudev->xrcd_tree_mutex);
659 static int ib_uverbs_close_xrcd(struct uverbs_attr_bundle *attrs)
661 struct ib_uverbs_close_xrcd cmd;
664 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
668 return uobj_perform_destroy(UVERBS_OBJECT_XRCD, cmd.xrcd_handle, attrs);
671 int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, struct ib_xrcd *xrcd,
672 enum rdma_remove_reason why,
673 struct uverbs_attr_bundle *attrs)
677 struct ib_uverbs_device *dev = attrs->ufile->device;
680 if (inode && !atomic_dec_and_test(&xrcd->usecnt))
683 ret = ib_dealloc_xrcd_user(xrcd, &attrs->driver_udata);
685 if (ib_is_destroy_retryable(ret, why, uobject)) {
686 atomic_inc(&xrcd->usecnt);
691 xrcd_table_delete(dev, inode);
696 static int ib_uverbs_reg_mr(struct uverbs_attr_bundle *attrs)
698 struct ib_uverbs_reg_mr_resp resp = {};
699 struct ib_uverbs_reg_mr cmd;
700 struct ib_uobject *uobj;
704 struct ib_device *ib_dev;
706 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
710 if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK))
713 ret = ib_check_mr_access(cmd.access_flags);
717 uobj = uobj_alloc(UVERBS_OBJECT_MR, attrs, &ib_dev);
719 return PTR_ERR(uobj);
721 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
727 if (cmd.access_flags & IB_ACCESS_ON_DEMAND) {
728 if (!(pd->device->attrs.device_cap_flags &
729 IB_DEVICE_ON_DEMAND_PAGING)) {
730 pr_debug("ODP support not available\n");
736 mr = pd->device->ops.reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va,
738 &attrs->driver_udata);
744 mr->device = pd->device;
746 mr->type = IB_MR_TYPE_USER;
748 mr->sig_attrs = NULL;
750 atomic_inc(&pd->usecnt);
751 mr->iova = cmd.hca_va;
752 mr->length = cmd.length;
754 rdma_restrack_new(&mr->res, RDMA_RESTRACK_MR);
755 rdma_restrack_set_name(&mr->res, NULL);
756 rdma_restrack_add(&mr->res);
759 uobj_put_obj_read(pd);
760 uobj_finalize_uobj_create(uobj, attrs);
762 resp.lkey = mr->lkey;
763 resp.rkey = mr->rkey;
764 resp.mr_handle = uobj->id;
765 return uverbs_response(attrs, &resp, sizeof(resp));
768 uobj_put_obj_read(pd);
770 uobj_alloc_abort(uobj, attrs);
774 static int ib_uverbs_rereg_mr(struct uverbs_attr_bundle *attrs)
776 struct ib_uverbs_rereg_mr cmd;
777 struct ib_uverbs_rereg_mr_resp resp;
778 struct ib_pd *pd = NULL;
780 struct ib_pd *old_pd;
782 struct ib_uobject *uobj;
784 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
788 if (cmd.flags & ~IB_MR_REREG_SUPPORTED || !cmd.flags)
791 if ((cmd.flags & IB_MR_REREG_TRANS) &&
792 (!cmd.start || !cmd.hca_va || 0 >= cmd.length ||
793 (cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)))
796 uobj = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle, attrs);
798 return PTR_ERR(uobj);
807 if (cmd.flags & IB_MR_REREG_ACCESS) {
808 ret = ib_check_mr_access(cmd.access_flags);
813 if (cmd.flags & IB_MR_REREG_PD) {
814 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle,
823 ret = mr->device->ops.rereg_user_mr(mr, cmd.flags, cmd.start,
824 cmd.length, cmd.hca_va,
825 cmd.access_flags, pd,
826 &attrs->driver_udata);
830 if (cmd.flags & IB_MR_REREG_PD) {
831 atomic_inc(&pd->usecnt);
833 atomic_dec(&old_pd->usecnt);
836 if (cmd.flags & IB_MR_REREG_TRANS) {
837 mr->iova = cmd.hca_va;
838 mr->length = cmd.length;
841 memset(&resp, 0, sizeof(resp));
842 resp.lkey = mr->lkey;
843 resp.rkey = mr->rkey;
845 ret = uverbs_response(attrs, &resp, sizeof(resp));
848 if (cmd.flags & IB_MR_REREG_PD)
849 uobj_put_obj_read(pd);
852 uobj_put_write(uobj);
857 static int ib_uverbs_dereg_mr(struct uverbs_attr_bundle *attrs)
859 struct ib_uverbs_dereg_mr cmd;
862 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
866 return uobj_perform_destroy(UVERBS_OBJECT_MR, cmd.mr_handle, attrs);
869 static int ib_uverbs_alloc_mw(struct uverbs_attr_bundle *attrs)
871 struct ib_uverbs_alloc_mw cmd;
872 struct ib_uverbs_alloc_mw_resp resp = {};
873 struct ib_uobject *uobj;
877 struct ib_device *ib_dev;
879 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
883 uobj = uobj_alloc(UVERBS_OBJECT_MW, attrs, &ib_dev);
885 return PTR_ERR(uobj);
887 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
893 if (cmd.mw_type != IB_MW_TYPE_1 && cmd.mw_type != IB_MW_TYPE_2) {
898 mw = rdma_zalloc_drv_obj(ib_dev, ib_mw);
907 mw->type = cmd.mw_type;
909 ret = pd->device->ops.alloc_mw(mw, &attrs->driver_udata);
913 atomic_inc(&pd->usecnt);
916 uobj_put_obj_read(pd);
917 uobj_finalize_uobj_create(uobj, attrs);
919 resp.rkey = mw->rkey;
920 resp.mw_handle = uobj->id;
921 return uverbs_response(attrs, &resp, sizeof(resp));
926 uobj_put_obj_read(pd);
928 uobj_alloc_abort(uobj, attrs);
932 static int ib_uverbs_dealloc_mw(struct uverbs_attr_bundle *attrs)
934 struct ib_uverbs_dealloc_mw cmd;
937 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
941 return uobj_perform_destroy(UVERBS_OBJECT_MW, cmd.mw_handle, attrs);
944 static int ib_uverbs_create_comp_channel(struct uverbs_attr_bundle *attrs)
946 struct ib_uverbs_create_comp_channel cmd;
947 struct ib_uverbs_create_comp_channel_resp resp;
948 struct ib_uobject *uobj;
949 struct ib_uverbs_completion_event_file *ev_file;
950 struct ib_device *ib_dev;
953 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
957 uobj = uobj_alloc(UVERBS_OBJECT_COMP_CHANNEL, attrs, &ib_dev);
959 return PTR_ERR(uobj);
961 ev_file = container_of(uobj, struct ib_uverbs_completion_event_file,
963 ib_uverbs_init_event_queue(&ev_file->ev_queue);
964 uobj_finalize_uobj_create(uobj, attrs);
967 return uverbs_response(attrs, &resp, sizeof(resp));
970 static int create_cq(struct uverbs_attr_bundle *attrs,
971 struct ib_uverbs_ex_create_cq *cmd)
973 struct ib_ucq_object *obj;
974 struct ib_uverbs_completion_event_file *ev_file = NULL;
977 struct ib_uverbs_ex_create_cq_resp resp = {};
978 struct ib_cq_init_attr attr = {};
979 struct ib_device *ib_dev;
981 if (cmd->comp_vector >= attrs->ufile->device->num_comp_vectors)
984 obj = (struct ib_ucq_object *)uobj_alloc(UVERBS_OBJECT_CQ, attrs,
989 if (cmd->comp_channel >= 0) {
990 ev_file = ib_uverbs_lookup_comp_file(cmd->comp_channel, attrs);
991 if (IS_ERR(ev_file)) {
992 ret = PTR_ERR(ev_file);
997 obj->uevent.uobject.user_handle = cmd->user_handle;
998 INIT_LIST_HEAD(&obj->comp_list);
999 INIT_LIST_HEAD(&obj->uevent.event_list);
1001 attr.cqe = cmd->cqe;
1002 attr.comp_vector = cmd->comp_vector;
1003 attr.flags = cmd->flags;
1005 cq = rdma_zalloc_drv_obj(ib_dev, ib_cq);
1010 cq->device = ib_dev;
1012 cq->comp_handler = ib_uverbs_comp_handler;
1013 cq->event_handler = ib_uverbs_cq_event_handler;
1014 cq->cq_context = ev_file ? &ev_file->ev_queue : NULL;
1015 atomic_set(&cq->usecnt, 0);
1017 rdma_restrack_new(&cq->res, RDMA_RESTRACK_CQ);
1018 rdma_restrack_set_name(&cq->res, NULL);
1020 ret = ib_dev->ops.create_cq(cq, &attr, &attrs->driver_udata);
1023 rdma_restrack_add(&cq->res);
1025 obj->uevent.uobject.object = cq;
1026 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
1027 if (obj->uevent.event_file)
1028 uverbs_uobject_get(&obj->uevent.event_file->uobj);
1029 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1031 resp.base.cq_handle = obj->uevent.uobject.id;
1032 resp.base.cqe = cq->cqe;
1033 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
1034 return uverbs_response(attrs, &resp, sizeof(resp));
1037 rdma_restrack_put(&cq->res);
1041 ib_uverbs_release_ucq(ev_file, obj);
1043 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1047 static int ib_uverbs_create_cq(struct uverbs_attr_bundle *attrs)
1049 struct ib_uverbs_create_cq cmd;
1050 struct ib_uverbs_ex_create_cq cmd_ex;
1053 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1057 memset(&cmd_ex, 0, sizeof(cmd_ex));
1058 cmd_ex.user_handle = cmd.user_handle;
1059 cmd_ex.cqe = cmd.cqe;
1060 cmd_ex.comp_vector = cmd.comp_vector;
1061 cmd_ex.comp_channel = cmd.comp_channel;
1063 return create_cq(attrs, &cmd_ex);
1066 static int ib_uverbs_ex_create_cq(struct uverbs_attr_bundle *attrs)
1068 struct ib_uverbs_ex_create_cq cmd;
1071 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1081 return create_cq(attrs, &cmd);
1084 static int ib_uverbs_resize_cq(struct uverbs_attr_bundle *attrs)
1086 struct ib_uverbs_resize_cq cmd;
1087 struct ib_uverbs_resize_cq_resp resp = {};
1091 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1095 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1099 ret = cq->device->ops.resize_cq(cq, cmd.cqe, &attrs->driver_udata);
1105 ret = uverbs_response(attrs, &resp, sizeof(resp));
1107 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1108 UVERBS_LOOKUP_READ);
1113 static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest,
1116 struct ib_uverbs_wc tmp;
1118 tmp.wr_id = wc->wr_id;
1119 tmp.status = wc->status;
1120 tmp.opcode = wc->opcode;
1121 tmp.vendor_err = wc->vendor_err;
1122 tmp.byte_len = wc->byte_len;
1123 tmp.ex.imm_data = wc->ex.imm_data;
1124 tmp.qp_num = wc->qp->qp_num;
1125 tmp.src_qp = wc->src_qp;
1126 tmp.wc_flags = wc->wc_flags;
1127 tmp.pkey_index = wc->pkey_index;
1128 if (rdma_cap_opa_ah(ib_dev, wc->port_num))
1129 tmp.slid = OPA_TO_IB_UCAST_LID(wc->slid);
1131 tmp.slid = ib_lid_cpu16(wc->slid);
1133 tmp.dlid_path_bits = wc->dlid_path_bits;
1134 tmp.port_num = wc->port_num;
1137 if (copy_to_user(dest, &tmp, sizeof tmp))
1143 static int ib_uverbs_poll_cq(struct uverbs_attr_bundle *attrs)
1145 struct ib_uverbs_poll_cq cmd;
1146 struct ib_uverbs_poll_cq_resp resp;
1147 u8 __user *header_ptr;
1148 u8 __user *data_ptr;
1153 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1157 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1161 /* we copy a struct ib_uverbs_poll_cq_resp to user space */
1162 header_ptr = attrs->ucore.outbuf;
1163 data_ptr = header_ptr + sizeof resp;
1165 memset(&resp, 0, sizeof resp);
1166 while (resp.count < cmd.ne) {
1167 ret = ib_poll_cq(cq, 1, &wc);
1173 ret = copy_wc_to_user(cq->device, data_ptr, &wc);
1177 data_ptr += sizeof(struct ib_uverbs_wc);
1181 if (copy_to_user(header_ptr, &resp, sizeof resp)) {
1187 if (uverbs_attr_is_valid(attrs, UVERBS_ATTR_CORE_OUT))
1188 ret = uverbs_output_written(attrs, UVERBS_ATTR_CORE_OUT);
1191 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1192 UVERBS_LOOKUP_READ);
1196 static int ib_uverbs_req_notify_cq(struct uverbs_attr_bundle *attrs)
1198 struct ib_uverbs_req_notify_cq cmd;
1202 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1206 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1210 ib_req_notify_cq(cq, cmd.solicited_only ?
1211 IB_CQ_SOLICITED : IB_CQ_NEXT_COMP);
1213 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1214 UVERBS_LOOKUP_READ);
1218 static int ib_uverbs_destroy_cq(struct uverbs_attr_bundle *attrs)
1220 struct ib_uverbs_destroy_cq cmd;
1221 struct ib_uverbs_destroy_cq_resp resp;
1222 struct ib_uobject *uobj;
1223 struct ib_ucq_object *obj;
1226 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1230 uobj = uobj_get_destroy(UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1232 return PTR_ERR(uobj);
1234 obj = container_of(uobj, struct ib_ucq_object, uevent.uobject);
1235 memset(&resp, 0, sizeof(resp));
1236 resp.comp_events_reported = obj->comp_events_reported;
1237 resp.async_events_reported = obj->uevent.events_reported;
1239 uobj_put_destroy(uobj);
1241 return uverbs_response(attrs, &resp, sizeof(resp));
1244 static int create_qp(struct uverbs_attr_bundle *attrs,
1245 struct ib_uverbs_ex_create_qp *cmd)
1247 struct ib_uqp_object *obj;
1248 struct ib_device *device;
1249 struct ib_pd *pd = NULL;
1250 struct ib_xrcd *xrcd = NULL;
1251 struct ib_uobject *xrcd_uobj = ERR_PTR(-ENOENT);
1252 struct ib_cq *scq = NULL, *rcq = NULL;
1253 struct ib_srq *srq = NULL;
1255 struct ib_qp_init_attr attr = {};
1256 struct ib_uverbs_ex_create_qp_resp resp = {};
1258 struct ib_rwq_ind_table *ind_tbl = NULL;
1260 struct ib_device *ib_dev;
1262 switch (cmd->qp_type) {
1263 case IB_QPT_RAW_PACKET:
1264 if (!capable(CAP_NET_RAW))
1270 case IB_QPT_XRC_INI:
1271 case IB_QPT_XRC_TGT:
1278 obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
1281 return PTR_ERR(obj);
1283 obj->uevent.uobject.user_handle = cmd->user_handle;
1284 mutex_init(&obj->mcast_lock);
1286 if (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE) {
1287 ind_tbl = uobj_get_obj_read(rwq_ind_table,
1288 UVERBS_OBJECT_RWQ_IND_TBL,
1289 cmd->rwq_ind_tbl_handle, attrs);
1295 attr.rwq_ind_tbl = ind_tbl;
1298 if (ind_tbl && (cmd->max_recv_wr || cmd->max_recv_sge || cmd->is_srq)) {
1303 if (ind_tbl && !cmd->max_send_wr)
1306 if (cmd->qp_type == IB_QPT_XRC_TGT) {
1307 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->pd_handle,
1310 if (IS_ERR(xrcd_uobj)) {
1315 xrcd = (struct ib_xrcd *)xrcd_uobj->object;
1320 device = xrcd->device;
1322 if (cmd->qp_type == IB_QPT_XRC_INI) {
1323 cmd->max_recv_wr = 0;
1324 cmd->max_recv_sge = 0;
1327 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ,
1328 cmd->srq_handle, attrs);
1329 if (!srq || srq->srq_type == IB_SRQT_XRC) {
1336 if (cmd->recv_cq_handle != cmd->send_cq_handle) {
1337 rcq = uobj_get_obj_read(
1338 cq, UVERBS_OBJECT_CQ,
1339 cmd->recv_cq_handle, attrs);
1349 scq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ,
1350 cmd->send_cq_handle, attrs);
1353 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle,
1355 if (!pd || (!scq && has_sq)) {
1360 device = pd->device;
1363 attr.event_handler = ib_uverbs_qp_event_handler;
1368 attr.sq_sig_type = cmd->sq_sig_all ? IB_SIGNAL_ALL_WR :
1370 attr.qp_type = cmd->qp_type;
1371 attr.create_flags = 0;
1373 attr.cap.max_send_wr = cmd->max_send_wr;
1374 attr.cap.max_recv_wr = cmd->max_recv_wr;
1375 attr.cap.max_send_sge = cmd->max_send_sge;
1376 attr.cap.max_recv_sge = cmd->max_recv_sge;
1377 attr.cap.max_inline_data = cmd->max_inline_data;
1379 INIT_LIST_HEAD(&obj->uevent.event_list);
1380 INIT_LIST_HEAD(&obj->mcast_list);
1382 attr.create_flags = cmd->create_flags;
1383 if (attr.create_flags & ~(IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK |
1384 IB_QP_CREATE_CROSS_CHANNEL |
1385 IB_QP_CREATE_MANAGED_SEND |
1386 IB_QP_CREATE_MANAGED_RECV |
1387 IB_QP_CREATE_SCATTER_FCS |
1388 IB_QP_CREATE_CVLAN_STRIPPING |
1389 IB_QP_CREATE_SOURCE_QPN |
1390 IB_QP_CREATE_PCI_WRITE_END_PADDING)) {
1395 if (attr.create_flags & IB_QP_CREATE_SOURCE_QPN) {
1396 if (!capable(CAP_NET_RAW)) {
1401 attr.source_qpn = cmd->source_qpn;
1404 if (cmd->qp_type == IB_QPT_XRC_TGT)
1405 qp = ib_create_qp(pd, &attr);
1407 qp = _ib_create_qp(device, pd, &attr, &attrs->driver_udata,
1415 if (cmd->qp_type != IB_QPT_XRC_TGT) {
1416 ret = ib_create_qp_security(qp, device);
1420 atomic_inc(&pd->usecnt);
1422 atomic_inc(&attr.send_cq->usecnt);
1424 atomic_inc(&attr.recv_cq->usecnt);
1426 atomic_inc(&attr.srq->usecnt);
1428 atomic_inc(&ind_tbl->usecnt);
1430 /* It is done in _ib_create_qp for other QP types */
1434 obj->uevent.uobject.object = qp;
1435 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
1436 if (obj->uevent.event_file)
1437 uverbs_uobject_get(&obj->uevent.event_file->uobj);
1440 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object,
1442 atomic_inc(&obj->uxrcd->refcnt);
1443 uobj_put_read(xrcd_uobj);
1447 uobj_put_obj_read(pd);
1449 rdma_lookup_put_uobject(&scq->uobject->uevent.uobject,
1450 UVERBS_LOOKUP_READ);
1451 if (rcq && rcq != scq)
1452 rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
1453 UVERBS_LOOKUP_READ);
1455 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
1456 UVERBS_LOOKUP_READ);
1458 uobj_put_obj_read(ind_tbl);
1459 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1461 resp.base.qpn = qp->qp_num;
1462 resp.base.qp_handle = obj->uevent.uobject.id;
1463 resp.base.max_recv_sge = attr.cap.max_recv_sge;
1464 resp.base.max_send_sge = attr.cap.max_send_sge;
1465 resp.base.max_recv_wr = attr.cap.max_recv_wr;
1466 resp.base.max_send_wr = attr.cap.max_send_wr;
1467 resp.base.max_inline_data = attr.cap.max_inline_data;
1468 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
1469 return uverbs_response(attrs, &resp, sizeof(resp));
1472 ib_destroy_qp_user(qp, uverbs_get_cleared_udata(attrs));
1475 if (!IS_ERR(xrcd_uobj))
1476 uobj_put_read(xrcd_uobj);
1478 uobj_put_obj_read(pd);
1480 rdma_lookup_put_uobject(&scq->uobject->uevent.uobject,
1481 UVERBS_LOOKUP_READ);
1482 if (rcq && rcq != scq)
1483 rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
1484 UVERBS_LOOKUP_READ);
1486 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
1487 UVERBS_LOOKUP_READ);
1489 uobj_put_obj_read(ind_tbl);
1491 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1495 static int ib_uverbs_create_qp(struct uverbs_attr_bundle *attrs)
1497 struct ib_uverbs_create_qp cmd;
1498 struct ib_uverbs_ex_create_qp cmd_ex;
1501 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1505 memset(&cmd_ex, 0, sizeof(cmd_ex));
1506 cmd_ex.user_handle = cmd.user_handle;
1507 cmd_ex.pd_handle = cmd.pd_handle;
1508 cmd_ex.send_cq_handle = cmd.send_cq_handle;
1509 cmd_ex.recv_cq_handle = cmd.recv_cq_handle;
1510 cmd_ex.srq_handle = cmd.srq_handle;
1511 cmd_ex.max_send_wr = cmd.max_send_wr;
1512 cmd_ex.max_recv_wr = cmd.max_recv_wr;
1513 cmd_ex.max_send_sge = cmd.max_send_sge;
1514 cmd_ex.max_recv_sge = cmd.max_recv_sge;
1515 cmd_ex.max_inline_data = cmd.max_inline_data;
1516 cmd_ex.sq_sig_all = cmd.sq_sig_all;
1517 cmd_ex.qp_type = cmd.qp_type;
1518 cmd_ex.is_srq = cmd.is_srq;
1520 return create_qp(attrs, &cmd_ex);
1523 static int ib_uverbs_ex_create_qp(struct uverbs_attr_bundle *attrs)
1525 struct ib_uverbs_ex_create_qp cmd;
1528 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1532 if (cmd.comp_mask & ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK)
1538 return create_qp(attrs, &cmd);
1541 static int ib_uverbs_open_qp(struct uverbs_attr_bundle *attrs)
1543 struct ib_uverbs_create_qp_resp resp = {};
1544 struct ib_uverbs_open_qp cmd;
1545 struct ib_uqp_object *obj;
1546 struct ib_xrcd *xrcd;
1548 struct ib_qp_open_attr attr = {};
1550 struct ib_uobject *xrcd_uobj;
1551 struct ib_device *ib_dev;
1553 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1557 obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
1560 return PTR_ERR(obj);
1562 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd.pd_handle, attrs);
1563 if (IS_ERR(xrcd_uobj)) {
1568 xrcd = (struct ib_xrcd *)xrcd_uobj->object;
1574 attr.event_handler = ib_uverbs_qp_event_handler;
1575 attr.qp_num = cmd.qpn;
1576 attr.qp_type = cmd.qp_type;
1578 INIT_LIST_HEAD(&obj->uevent.event_list);
1579 INIT_LIST_HEAD(&obj->mcast_list);
1581 qp = ib_open_qp(xrcd, &attr);
1587 obj->uevent.uobject.object = qp;
1588 obj->uevent.uobject.user_handle = cmd.user_handle;
1590 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
1591 atomic_inc(&obj->uxrcd->refcnt);
1593 uobj_put_read(xrcd_uobj);
1594 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1596 resp.qpn = qp->qp_num;
1597 resp.qp_handle = obj->uevent.uobject.id;
1598 return uverbs_response(attrs, &resp, sizeof(resp));
1601 uobj_put_read(xrcd_uobj);
1603 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1607 static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest *uverb_attr,
1608 struct rdma_ah_attr *rdma_attr)
1610 const struct ib_global_route *grh;
1612 uverb_attr->dlid = rdma_ah_get_dlid(rdma_attr);
1613 uverb_attr->sl = rdma_ah_get_sl(rdma_attr);
1614 uverb_attr->src_path_bits = rdma_ah_get_path_bits(rdma_attr);
1615 uverb_attr->static_rate = rdma_ah_get_static_rate(rdma_attr);
1616 uverb_attr->is_global = !!(rdma_ah_get_ah_flags(rdma_attr) &
1618 if (uverb_attr->is_global) {
1619 grh = rdma_ah_read_grh(rdma_attr);
1620 memcpy(uverb_attr->dgid, grh->dgid.raw, 16);
1621 uverb_attr->flow_label = grh->flow_label;
1622 uverb_attr->sgid_index = grh->sgid_index;
1623 uverb_attr->hop_limit = grh->hop_limit;
1624 uverb_attr->traffic_class = grh->traffic_class;
1626 uverb_attr->port_num = rdma_ah_get_port_num(rdma_attr);
1629 static int ib_uverbs_query_qp(struct uverbs_attr_bundle *attrs)
1631 struct ib_uverbs_query_qp cmd;
1632 struct ib_uverbs_query_qp_resp resp;
1634 struct ib_qp_attr *attr;
1635 struct ib_qp_init_attr *init_attr;
1638 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1642 attr = kmalloc(sizeof *attr, GFP_KERNEL);
1643 init_attr = kmalloc(sizeof *init_attr, GFP_KERNEL);
1644 if (!attr || !init_attr) {
1649 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
1655 ret = ib_query_qp(qp, attr, cmd.attr_mask, init_attr);
1657 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
1658 UVERBS_LOOKUP_READ);
1663 memset(&resp, 0, sizeof resp);
1665 resp.qp_state = attr->qp_state;
1666 resp.cur_qp_state = attr->cur_qp_state;
1667 resp.path_mtu = attr->path_mtu;
1668 resp.path_mig_state = attr->path_mig_state;
1669 resp.qkey = attr->qkey;
1670 resp.rq_psn = attr->rq_psn;
1671 resp.sq_psn = attr->sq_psn;
1672 resp.dest_qp_num = attr->dest_qp_num;
1673 resp.qp_access_flags = attr->qp_access_flags;
1674 resp.pkey_index = attr->pkey_index;
1675 resp.alt_pkey_index = attr->alt_pkey_index;
1676 resp.sq_draining = attr->sq_draining;
1677 resp.max_rd_atomic = attr->max_rd_atomic;
1678 resp.max_dest_rd_atomic = attr->max_dest_rd_atomic;
1679 resp.min_rnr_timer = attr->min_rnr_timer;
1680 resp.port_num = attr->port_num;
1681 resp.timeout = attr->timeout;
1682 resp.retry_cnt = attr->retry_cnt;
1683 resp.rnr_retry = attr->rnr_retry;
1684 resp.alt_port_num = attr->alt_port_num;
1685 resp.alt_timeout = attr->alt_timeout;
1687 copy_ah_attr_to_uverbs(&resp.dest, &attr->ah_attr);
1688 copy_ah_attr_to_uverbs(&resp.alt_dest, &attr->alt_ah_attr);
1690 resp.max_send_wr = init_attr->cap.max_send_wr;
1691 resp.max_recv_wr = init_attr->cap.max_recv_wr;
1692 resp.max_send_sge = init_attr->cap.max_send_sge;
1693 resp.max_recv_sge = init_attr->cap.max_recv_sge;
1694 resp.max_inline_data = init_attr->cap.max_inline_data;
1695 resp.sq_sig_all = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR;
1697 ret = uverbs_response(attrs, &resp, sizeof(resp));
1706 /* Remove ignored fields set in the attribute mask */
1707 static int modify_qp_mask(enum ib_qp_type qp_type, int mask)
1710 case IB_QPT_XRC_INI:
1711 return mask & ~(IB_QP_MAX_DEST_RD_ATOMIC | IB_QP_MIN_RNR_TIMER);
1712 case IB_QPT_XRC_TGT:
1713 return mask & ~(IB_QP_MAX_QP_RD_ATOMIC | IB_QP_RETRY_CNT |
1720 static void copy_ah_attr_from_uverbs(struct ib_device *dev,
1721 struct rdma_ah_attr *rdma_attr,
1722 struct ib_uverbs_qp_dest *uverb_attr)
1724 rdma_attr->type = rdma_ah_find_type(dev, uverb_attr->port_num);
1725 if (uverb_attr->is_global) {
1726 rdma_ah_set_grh(rdma_attr, NULL,
1727 uverb_attr->flow_label,
1728 uverb_attr->sgid_index,
1729 uverb_attr->hop_limit,
1730 uverb_attr->traffic_class);
1731 rdma_ah_set_dgid_raw(rdma_attr, uverb_attr->dgid);
1733 rdma_ah_set_ah_flags(rdma_attr, 0);
1735 rdma_ah_set_dlid(rdma_attr, uverb_attr->dlid);
1736 rdma_ah_set_sl(rdma_attr, uverb_attr->sl);
1737 rdma_ah_set_path_bits(rdma_attr, uverb_attr->src_path_bits);
1738 rdma_ah_set_static_rate(rdma_attr, uverb_attr->static_rate);
1739 rdma_ah_set_port_num(rdma_attr, uverb_attr->port_num);
1740 rdma_ah_set_make_grd(rdma_attr, false);
1743 static int modify_qp(struct uverbs_attr_bundle *attrs,
1744 struct ib_uverbs_ex_modify_qp *cmd)
1746 struct ib_qp_attr *attr;
1750 attr = kzalloc(sizeof(*attr), GFP_KERNEL);
1754 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd->base.qp_handle,
1761 if ((cmd->base.attr_mask & IB_QP_PORT) &&
1762 !rdma_is_port_valid(qp->device, cmd->base.port_num)) {
1767 if ((cmd->base.attr_mask & IB_QP_AV)) {
1768 if (!rdma_is_port_valid(qp->device, cmd->base.dest.port_num)) {
1773 if (cmd->base.attr_mask & IB_QP_STATE &&
1774 cmd->base.qp_state == IB_QPS_RTR) {
1775 /* We are in INIT->RTR TRANSITION (if we are not,
1776 * this transition will be rejected in subsequent checks).
1777 * In the INIT->RTR transition, we cannot have IB_QP_PORT set,
1778 * but the IB_QP_STATE flag is required.
1780 * Since kernel 3.14 (commit dbf727de7440), the uverbs driver,
1781 * when IB_QP_AV is set, has required inclusion of a valid
1782 * port number in the primary AV. (AVs are created and handled
1783 * differently for infiniband and ethernet (RoCE) ports).
1785 * Check the port number included in the primary AV against
1786 * the port number in the qp struct, which was set (and saved)
1787 * in the RST->INIT transition.
1789 if (cmd->base.dest.port_num != qp->real_qp->port) {
1794 /* We are in SQD->SQD. (If we are not, this transition will
1795 * be rejected later in the verbs layer checks).
1796 * Check for both IB_QP_PORT and IB_QP_AV, these can be set
1797 * together in the SQD->SQD transition.
1799 * If only IP_QP_AV was set, add in IB_QP_PORT as well (the
1800 * verbs layer driver does not track primary port changes
1801 * resulting from path migration. Thus, in SQD, if the primary
1802 * AV is modified, the primary port should also be modified).
1804 * Note that in this transition, the IB_QP_STATE flag
1807 if (((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT))
1808 == (IB_QP_AV | IB_QP_PORT)) &&
1809 cmd->base.port_num != cmd->base.dest.port_num) {
1813 if ((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT))
1815 cmd->base.attr_mask |= IB_QP_PORT;
1816 cmd->base.port_num = cmd->base.dest.port_num;
1821 if ((cmd->base.attr_mask & IB_QP_ALT_PATH) &&
1822 (!rdma_is_port_valid(qp->device, cmd->base.alt_port_num) ||
1823 !rdma_is_port_valid(qp->device, cmd->base.alt_dest.port_num) ||
1824 cmd->base.alt_port_num != cmd->base.alt_dest.port_num)) {
1829 if ((cmd->base.attr_mask & IB_QP_CUR_STATE &&
1830 cmd->base.cur_qp_state > IB_QPS_ERR) ||
1831 (cmd->base.attr_mask & IB_QP_STATE &&
1832 cmd->base.qp_state > IB_QPS_ERR)) {
1837 if (cmd->base.attr_mask & IB_QP_STATE)
1838 attr->qp_state = cmd->base.qp_state;
1839 if (cmd->base.attr_mask & IB_QP_CUR_STATE)
1840 attr->cur_qp_state = cmd->base.cur_qp_state;
1841 if (cmd->base.attr_mask & IB_QP_PATH_MTU)
1842 attr->path_mtu = cmd->base.path_mtu;
1843 if (cmd->base.attr_mask & IB_QP_PATH_MIG_STATE)
1844 attr->path_mig_state = cmd->base.path_mig_state;
1845 if (cmd->base.attr_mask & IB_QP_QKEY)
1846 attr->qkey = cmd->base.qkey;
1847 if (cmd->base.attr_mask & IB_QP_RQ_PSN)
1848 attr->rq_psn = cmd->base.rq_psn;
1849 if (cmd->base.attr_mask & IB_QP_SQ_PSN)
1850 attr->sq_psn = cmd->base.sq_psn;
1851 if (cmd->base.attr_mask & IB_QP_DEST_QPN)
1852 attr->dest_qp_num = cmd->base.dest_qp_num;
1853 if (cmd->base.attr_mask & IB_QP_ACCESS_FLAGS)
1854 attr->qp_access_flags = cmd->base.qp_access_flags;
1855 if (cmd->base.attr_mask & IB_QP_PKEY_INDEX)
1856 attr->pkey_index = cmd->base.pkey_index;
1857 if (cmd->base.attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY)
1858 attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify;
1859 if (cmd->base.attr_mask & IB_QP_MAX_QP_RD_ATOMIC)
1860 attr->max_rd_atomic = cmd->base.max_rd_atomic;
1861 if (cmd->base.attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
1862 attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic;
1863 if (cmd->base.attr_mask & IB_QP_MIN_RNR_TIMER)
1864 attr->min_rnr_timer = cmd->base.min_rnr_timer;
1865 if (cmd->base.attr_mask & IB_QP_PORT)
1866 attr->port_num = cmd->base.port_num;
1867 if (cmd->base.attr_mask & IB_QP_TIMEOUT)
1868 attr->timeout = cmd->base.timeout;
1869 if (cmd->base.attr_mask & IB_QP_RETRY_CNT)
1870 attr->retry_cnt = cmd->base.retry_cnt;
1871 if (cmd->base.attr_mask & IB_QP_RNR_RETRY)
1872 attr->rnr_retry = cmd->base.rnr_retry;
1873 if (cmd->base.attr_mask & IB_QP_ALT_PATH) {
1874 attr->alt_port_num = cmd->base.alt_port_num;
1875 attr->alt_timeout = cmd->base.alt_timeout;
1876 attr->alt_pkey_index = cmd->base.alt_pkey_index;
1878 if (cmd->base.attr_mask & IB_QP_RATE_LIMIT)
1879 attr->rate_limit = cmd->rate_limit;
1881 if (cmd->base.attr_mask & IB_QP_AV)
1882 copy_ah_attr_from_uverbs(qp->device, &attr->ah_attr,
1885 if (cmd->base.attr_mask & IB_QP_ALT_PATH)
1886 copy_ah_attr_from_uverbs(qp->device, &attr->alt_ah_attr,
1887 &cmd->base.alt_dest);
1889 ret = ib_modify_qp_with_udata(qp, attr,
1890 modify_qp_mask(qp->qp_type,
1891 cmd->base.attr_mask),
1892 &attrs->driver_udata);
1895 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
1896 UVERBS_LOOKUP_READ);
1903 static int ib_uverbs_modify_qp(struct uverbs_attr_bundle *attrs)
1905 struct ib_uverbs_ex_modify_qp cmd;
1908 ret = uverbs_request(attrs, &cmd.base, sizeof(cmd.base));
1912 if (cmd.base.attr_mask &
1913 ~((IB_USER_LEGACY_LAST_QP_ATTR_MASK << 1) - 1))
1916 return modify_qp(attrs, &cmd);
1919 static int ib_uverbs_ex_modify_qp(struct uverbs_attr_bundle *attrs)
1921 struct ib_uverbs_ex_modify_qp cmd;
1922 struct ib_uverbs_ex_modify_qp_resp resp = {
1923 .response_length = uverbs_response_length(attrs, sizeof(resp))
1927 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1932 * Last bit is reserved for extending the attr_mask by
1933 * using another field.
1935 BUILD_BUG_ON(IB_USER_LAST_QP_ATTR_MASK == (1ULL << 31));
1937 if (cmd.base.attr_mask &
1938 ~((IB_USER_LAST_QP_ATTR_MASK << 1) - 1))
1941 ret = modify_qp(attrs, &cmd);
1945 return uverbs_response(attrs, &resp, sizeof(resp));
1948 static int ib_uverbs_destroy_qp(struct uverbs_attr_bundle *attrs)
1950 struct ib_uverbs_destroy_qp cmd;
1951 struct ib_uverbs_destroy_qp_resp resp;
1952 struct ib_uobject *uobj;
1953 struct ib_uqp_object *obj;
1956 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1960 uobj = uobj_get_destroy(UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
1962 return PTR_ERR(uobj);
1964 obj = container_of(uobj, struct ib_uqp_object, uevent.uobject);
1965 memset(&resp, 0, sizeof(resp));
1966 resp.events_reported = obj->uevent.events_reported;
1968 uobj_put_destroy(uobj);
1970 return uverbs_response(attrs, &resp, sizeof(resp));
1973 static void *alloc_wr(size_t wr_size, __u32 num_sge)
1975 if (num_sge >= (U32_MAX - ALIGN(wr_size, sizeof (struct ib_sge))) /
1976 sizeof (struct ib_sge))
1979 return kmalloc(ALIGN(wr_size, sizeof (struct ib_sge)) +
1980 num_sge * sizeof (struct ib_sge), GFP_KERNEL);
1983 static int ib_uverbs_post_send(struct uverbs_attr_bundle *attrs)
1985 struct ib_uverbs_post_send cmd;
1986 struct ib_uverbs_post_send_resp resp;
1987 struct ib_uverbs_send_wr *user_wr;
1988 struct ib_send_wr *wr = NULL, *last, *next;
1989 const struct ib_send_wr *bad_wr;
1995 const struct ib_sge __user *sgls;
1996 const void __user *wqes;
1997 struct uverbs_req_iter iter;
1999 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2002 wqes = uverbs_request_next_ptr(&iter, cmd.wqe_size * cmd.wr_count);
2004 return PTR_ERR(wqes);
2005 sgls = uverbs_request_next_ptr(
2006 &iter, cmd.sge_count * sizeof(struct ib_uverbs_sge));
2008 return PTR_ERR(sgls);
2009 ret = uverbs_request_finish(&iter);
2013 user_wr = kmalloc(cmd.wqe_size, GFP_KERNEL);
2017 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2023 is_ud = qp->qp_type == IB_QPT_UD;
2026 for (i = 0; i < cmd.wr_count; ++i) {
2027 if (copy_from_user(user_wr, wqes + i * cmd.wqe_size,
2033 if (user_wr->num_sge + sg_ind > cmd.sge_count) {
2039 struct ib_ud_wr *ud;
2041 if (user_wr->opcode != IB_WR_SEND &&
2042 user_wr->opcode != IB_WR_SEND_WITH_IMM) {
2047 next_size = sizeof(*ud);
2048 ud = alloc_wr(next_size, user_wr->num_sge);
2054 ud->ah = uobj_get_obj_read(ah, UVERBS_OBJECT_AH,
2055 user_wr->wr.ud.ah, attrs);
2061 ud->remote_qpn = user_wr->wr.ud.remote_qpn;
2062 ud->remote_qkey = user_wr->wr.ud.remote_qkey;
2065 } else if (user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM ||
2066 user_wr->opcode == IB_WR_RDMA_WRITE ||
2067 user_wr->opcode == IB_WR_RDMA_READ) {
2068 struct ib_rdma_wr *rdma;
2070 next_size = sizeof(*rdma);
2071 rdma = alloc_wr(next_size, user_wr->num_sge);
2077 rdma->remote_addr = user_wr->wr.rdma.remote_addr;
2078 rdma->rkey = user_wr->wr.rdma.rkey;
2081 } else if (user_wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP ||
2082 user_wr->opcode == IB_WR_ATOMIC_FETCH_AND_ADD) {
2083 struct ib_atomic_wr *atomic;
2085 next_size = sizeof(*atomic);
2086 atomic = alloc_wr(next_size, user_wr->num_sge);
2092 atomic->remote_addr = user_wr->wr.atomic.remote_addr;
2093 atomic->compare_add = user_wr->wr.atomic.compare_add;
2094 atomic->swap = user_wr->wr.atomic.swap;
2095 atomic->rkey = user_wr->wr.atomic.rkey;
2098 } else if (user_wr->opcode == IB_WR_SEND ||
2099 user_wr->opcode == IB_WR_SEND_WITH_IMM ||
2100 user_wr->opcode == IB_WR_SEND_WITH_INV) {
2101 next_size = sizeof(*next);
2102 next = alloc_wr(next_size, user_wr->num_sge);
2112 if (user_wr->opcode == IB_WR_SEND_WITH_IMM ||
2113 user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) {
2115 (__be32 __force) user_wr->ex.imm_data;
2116 } else if (user_wr->opcode == IB_WR_SEND_WITH_INV) {
2117 next->ex.invalidate_rkey = user_wr->ex.invalidate_rkey;
2127 next->wr_id = user_wr->wr_id;
2128 next->num_sge = user_wr->num_sge;
2129 next->opcode = user_wr->opcode;
2130 next->send_flags = user_wr->send_flags;
2132 if (next->num_sge) {
2133 next->sg_list = (void *) next +
2134 ALIGN(next_size, sizeof(struct ib_sge));
2135 if (copy_from_user(next->sg_list, sgls + sg_ind,
2137 sizeof(struct ib_sge))) {
2141 sg_ind += next->num_sge;
2143 next->sg_list = NULL;
2147 ret = qp->device->ops.post_send(qp->real_qp, wr, &bad_wr);
2149 for (next = wr; next; next = next->next) {
2155 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2160 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2161 UVERBS_LOOKUP_READ);
2164 if (is_ud && ud_wr(wr)->ah)
2165 uobj_put_obj_read(ud_wr(wr)->ah);
2177 static struct ib_recv_wr *
2178 ib_uverbs_unmarshall_recv(struct uverbs_req_iter *iter, u32 wr_count,
2179 u32 wqe_size, u32 sge_count)
2181 struct ib_uverbs_recv_wr *user_wr;
2182 struct ib_recv_wr *wr = NULL, *last, *next;
2186 const struct ib_sge __user *sgls;
2187 const void __user *wqes;
2189 if (wqe_size < sizeof (struct ib_uverbs_recv_wr))
2190 return ERR_PTR(-EINVAL);
2192 wqes = uverbs_request_next_ptr(iter, wqe_size * wr_count);
2194 return ERR_CAST(wqes);
2195 sgls = uverbs_request_next_ptr(
2196 iter, sge_count * sizeof(struct ib_uverbs_sge));
2198 return ERR_CAST(sgls);
2199 ret = uverbs_request_finish(iter);
2201 return ERR_PTR(ret);
2203 user_wr = kmalloc(wqe_size, GFP_KERNEL);
2205 return ERR_PTR(-ENOMEM);
2209 for (i = 0; i < wr_count; ++i) {
2210 if (copy_from_user(user_wr, wqes + i * wqe_size,
2216 if (user_wr->num_sge + sg_ind > sge_count) {
2221 if (user_wr->num_sge >=
2222 (U32_MAX - ALIGN(sizeof *next, sizeof (struct ib_sge))) /
2223 sizeof (struct ib_sge)) {
2228 next = kmalloc(ALIGN(sizeof *next, sizeof (struct ib_sge)) +
2229 user_wr->num_sge * sizeof (struct ib_sge),
2243 next->wr_id = user_wr->wr_id;
2244 next->num_sge = user_wr->num_sge;
2246 if (next->num_sge) {
2247 next->sg_list = (void *) next +
2248 ALIGN(sizeof *next, sizeof (struct ib_sge));
2249 if (copy_from_user(next->sg_list, sgls + sg_ind,
2251 sizeof(struct ib_sge))) {
2255 sg_ind += next->num_sge;
2257 next->sg_list = NULL;
2272 return ERR_PTR(ret);
2275 static int ib_uverbs_post_recv(struct uverbs_attr_bundle *attrs)
2277 struct ib_uverbs_post_recv cmd;
2278 struct ib_uverbs_post_recv_resp resp;
2279 struct ib_recv_wr *wr, *next;
2280 const struct ib_recv_wr *bad_wr;
2283 struct uverbs_req_iter iter;
2285 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2289 wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size,
2294 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2301 ret = qp->device->ops.post_recv(qp->real_qp, wr, &bad_wr);
2303 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2304 UVERBS_LOOKUP_READ);
2306 for (next = wr; next; next = next->next) {
2313 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2326 static int ib_uverbs_post_srq_recv(struct uverbs_attr_bundle *attrs)
2328 struct ib_uverbs_post_srq_recv cmd;
2329 struct ib_uverbs_post_srq_recv_resp resp;
2330 struct ib_recv_wr *wr, *next;
2331 const struct ib_recv_wr *bad_wr;
2334 struct uverbs_req_iter iter;
2336 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2340 wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size,
2345 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
2352 ret = srq->device->ops.post_srq_recv(srq, wr, &bad_wr);
2354 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
2355 UVERBS_LOOKUP_READ);
2358 for (next = wr; next; next = next->next) {
2364 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2378 static int ib_uverbs_create_ah(struct uverbs_attr_bundle *attrs)
2380 struct ib_uverbs_create_ah cmd;
2381 struct ib_uverbs_create_ah_resp resp;
2382 struct ib_uobject *uobj;
2385 struct rdma_ah_attr attr = {};
2387 struct ib_device *ib_dev;
2389 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2393 uobj = uobj_alloc(UVERBS_OBJECT_AH, attrs, &ib_dev);
2395 return PTR_ERR(uobj);
2397 if (!rdma_is_port_valid(ib_dev, cmd.attr.port_num)) {
2402 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
2408 attr.type = rdma_ah_find_type(ib_dev, cmd.attr.port_num);
2409 rdma_ah_set_make_grd(&attr, false);
2410 rdma_ah_set_dlid(&attr, cmd.attr.dlid);
2411 rdma_ah_set_sl(&attr, cmd.attr.sl);
2412 rdma_ah_set_path_bits(&attr, cmd.attr.src_path_bits);
2413 rdma_ah_set_static_rate(&attr, cmd.attr.static_rate);
2414 rdma_ah_set_port_num(&attr, cmd.attr.port_num);
2416 if (cmd.attr.is_global) {
2417 rdma_ah_set_grh(&attr, NULL, cmd.attr.grh.flow_label,
2418 cmd.attr.grh.sgid_index,
2419 cmd.attr.grh.hop_limit,
2420 cmd.attr.grh.traffic_class);
2421 rdma_ah_set_dgid_raw(&attr, cmd.attr.grh.dgid);
2423 rdma_ah_set_ah_flags(&attr, 0);
2426 ah = rdma_create_user_ah(pd, &attr, &attrs->driver_udata);
2433 uobj->user_handle = cmd.user_handle;
2435 uobj_put_obj_read(pd);
2436 uobj_finalize_uobj_create(uobj, attrs);
2438 resp.ah_handle = uobj->id;
2439 return uverbs_response(attrs, &resp, sizeof(resp));
2442 uobj_put_obj_read(pd);
2444 uobj_alloc_abort(uobj, attrs);
2448 static int ib_uverbs_destroy_ah(struct uverbs_attr_bundle *attrs)
2450 struct ib_uverbs_destroy_ah cmd;
2453 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2457 return uobj_perform_destroy(UVERBS_OBJECT_AH, cmd.ah_handle, attrs);
2460 static int ib_uverbs_attach_mcast(struct uverbs_attr_bundle *attrs)
2462 struct ib_uverbs_attach_mcast cmd;
2464 struct ib_uqp_object *obj;
2465 struct ib_uverbs_mcast_entry *mcast;
2468 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2472 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2478 mutex_lock(&obj->mcast_lock);
2479 list_for_each_entry(mcast, &obj->mcast_list, list)
2480 if (cmd.mlid == mcast->lid &&
2481 !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) {
2486 mcast = kmalloc(sizeof *mcast, GFP_KERNEL);
2492 mcast->lid = cmd.mlid;
2493 memcpy(mcast->gid.raw, cmd.gid, sizeof mcast->gid.raw);
2495 ret = ib_attach_mcast(qp, &mcast->gid, cmd.mlid);
2497 list_add_tail(&mcast->list, &obj->mcast_list);
2502 mutex_unlock(&obj->mcast_lock);
2503 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2504 UVERBS_LOOKUP_READ);
2509 static int ib_uverbs_detach_mcast(struct uverbs_attr_bundle *attrs)
2511 struct ib_uverbs_detach_mcast cmd;
2512 struct ib_uqp_object *obj;
2514 struct ib_uverbs_mcast_entry *mcast;
2518 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2522 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2527 mutex_lock(&obj->mcast_lock);
2529 list_for_each_entry(mcast, &obj->mcast_list, list)
2530 if (cmd.mlid == mcast->lid &&
2531 !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) {
2532 list_del(&mcast->list);
2543 ret = ib_detach_mcast(qp, (union ib_gid *)cmd.gid, cmd.mlid);
2546 mutex_unlock(&obj->mcast_lock);
2547 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2548 UVERBS_LOOKUP_READ);
2552 struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
2554 struct ib_uflow_resources *resources;
2556 resources = kzalloc(sizeof(*resources), GFP_KERNEL);
2564 resources->counters =
2565 kcalloc(num_specs, sizeof(*resources->counters), GFP_KERNEL);
2566 resources->collection =
2567 kcalloc(num_specs, sizeof(*resources->collection), GFP_KERNEL);
2569 if (!resources->counters || !resources->collection)
2573 resources->max = num_specs;
2577 kfree(resources->counters);
2582 EXPORT_SYMBOL(flow_resources_alloc);
2584 void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res)
2591 for (i = 0; i < uflow_res->collection_num; i++)
2592 atomic_dec(&uflow_res->collection[i]->usecnt);
2594 for (i = 0; i < uflow_res->counters_num; i++)
2595 atomic_dec(&uflow_res->counters[i]->usecnt);
2597 kfree(uflow_res->collection);
2598 kfree(uflow_res->counters);
2601 EXPORT_SYMBOL(ib_uverbs_flow_resources_free);
2603 void flow_resources_add(struct ib_uflow_resources *uflow_res,
2604 enum ib_flow_spec_type type,
2607 WARN_ON(uflow_res->num >= uflow_res->max);
2610 case IB_FLOW_SPEC_ACTION_HANDLE:
2611 atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt);
2612 uflow_res->collection[uflow_res->collection_num++] =
2613 (struct ib_flow_action *)ibobj;
2615 case IB_FLOW_SPEC_ACTION_COUNT:
2616 atomic_inc(&((struct ib_counters *)ibobj)->usecnt);
2617 uflow_res->counters[uflow_res->counters_num++] =
2618 (struct ib_counters *)ibobj;
2626 EXPORT_SYMBOL(flow_resources_add);
2628 static int kern_spec_to_ib_spec_action(struct uverbs_attr_bundle *attrs,
2629 struct ib_uverbs_flow_spec *kern_spec,
2630 union ib_flow_spec *ib_spec,
2631 struct ib_uflow_resources *uflow_res)
2633 ib_spec->type = kern_spec->type;
2634 switch (ib_spec->type) {
2635 case IB_FLOW_SPEC_ACTION_TAG:
2636 if (kern_spec->flow_tag.size !=
2637 sizeof(struct ib_uverbs_flow_spec_action_tag))
2640 ib_spec->flow_tag.size = sizeof(struct ib_flow_spec_action_tag);
2641 ib_spec->flow_tag.tag_id = kern_spec->flow_tag.tag_id;
2643 case IB_FLOW_SPEC_ACTION_DROP:
2644 if (kern_spec->drop.size !=
2645 sizeof(struct ib_uverbs_flow_spec_action_drop))
2648 ib_spec->drop.size = sizeof(struct ib_flow_spec_action_drop);
2650 case IB_FLOW_SPEC_ACTION_HANDLE:
2651 if (kern_spec->action.size !=
2652 sizeof(struct ib_uverbs_flow_spec_action_handle))
2654 ib_spec->action.act = uobj_get_obj_read(flow_action,
2655 UVERBS_OBJECT_FLOW_ACTION,
2656 kern_spec->action.handle,
2658 if (!ib_spec->action.act)
2660 ib_spec->action.size =
2661 sizeof(struct ib_flow_spec_action_handle);
2662 flow_resources_add(uflow_res,
2663 IB_FLOW_SPEC_ACTION_HANDLE,
2664 ib_spec->action.act);
2665 uobj_put_obj_read(ib_spec->action.act);
2667 case IB_FLOW_SPEC_ACTION_COUNT:
2668 if (kern_spec->flow_count.size !=
2669 sizeof(struct ib_uverbs_flow_spec_action_count))
2671 ib_spec->flow_count.counters =
2672 uobj_get_obj_read(counters,
2673 UVERBS_OBJECT_COUNTERS,
2674 kern_spec->flow_count.handle,
2676 if (!ib_spec->flow_count.counters)
2678 ib_spec->flow_count.size =
2679 sizeof(struct ib_flow_spec_action_count);
2680 flow_resources_add(uflow_res,
2681 IB_FLOW_SPEC_ACTION_COUNT,
2682 ib_spec->flow_count.counters);
2683 uobj_put_obj_read(ib_spec->flow_count.counters);
2691 static ssize_t spec_filter_size(const void *kern_spec_filter, u16 kern_filter_size,
2692 u16 ib_real_filter_sz)
2695 * User space filter structures must be 64 bit aligned, otherwise this
2696 * may pass, but we won't handle additional new attributes.
2699 if (kern_filter_size > ib_real_filter_sz) {
2700 if (memchr_inv(kern_spec_filter +
2701 ib_real_filter_sz, 0,
2702 kern_filter_size - ib_real_filter_sz))
2704 return ib_real_filter_sz;
2706 return kern_filter_size;
2709 int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type,
2710 const void *kern_spec_mask,
2711 const void *kern_spec_val,
2712 size_t kern_filter_sz,
2713 union ib_flow_spec *ib_spec)
2715 ssize_t actual_filter_sz;
2716 ssize_t ib_filter_sz;
2718 /* User flow spec size must be aligned to 4 bytes */
2719 if (kern_filter_sz != ALIGN(kern_filter_sz, 4))
2722 ib_spec->type = type;
2724 if (ib_spec->type == (IB_FLOW_SPEC_INNER | IB_FLOW_SPEC_VXLAN_TUNNEL))
2727 switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) {
2728 case IB_FLOW_SPEC_ETH:
2729 ib_filter_sz = offsetof(struct ib_flow_eth_filter, real_sz);
2730 actual_filter_sz = spec_filter_size(kern_spec_mask,
2733 if (actual_filter_sz <= 0)
2735 ib_spec->size = sizeof(struct ib_flow_spec_eth);
2736 memcpy(&ib_spec->eth.val, kern_spec_val, actual_filter_sz);
2737 memcpy(&ib_spec->eth.mask, kern_spec_mask, actual_filter_sz);
2739 case IB_FLOW_SPEC_IPV4:
2740 ib_filter_sz = offsetof(struct ib_flow_ipv4_filter, real_sz);
2741 actual_filter_sz = spec_filter_size(kern_spec_mask,
2744 if (actual_filter_sz <= 0)
2746 ib_spec->size = sizeof(struct ib_flow_spec_ipv4);
2747 memcpy(&ib_spec->ipv4.val, kern_spec_val, actual_filter_sz);
2748 memcpy(&ib_spec->ipv4.mask, kern_spec_mask, actual_filter_sz);
2750 case IB_FLOW_SPEC_IPV6:
2751 ib_filter_sz = offsetof(struct ib_flow_ipv6_filter, real_sz);
2752 actual_filter_sz = spec_filter_size(kern_spec_mask,
2755 if (actual_filter_sz <= 0)
2757 ib_spec->size = sizeof(struct ib_flow_spec_ipv6);
2758 memcpy(&ib_spec->ipv6.val, kern_spec_val, actual_filter_sz);
2759 memcpy(&ib_spec->ipv6.mask, kern_spec_mask, actual_filter_sz);
2761 if ((ntohl(ib_spec->ipv6.mask.flow_label)) >= BIT(20) ||
2762 (ntohl(ib_spec->ipv6.val.flow_label)) >= BIT(20))
2765 case IB_FLOW_SPEC_TCP:
2766 case IB_FLOW_SPEC_UDP:
2767 ib_filter_sz = offsetof(struct ib_flow_tcp_udp_filter, real_sz);
2768 actual_filter_sz = spec_filter_size(kern_spec_mask,
2771 if (actual_filter_sz <= 0)
2773 ib_spec->size = sizeof(struct ib_flow_spec_tcp_udp);
2774 memcpy(&ib_spec->tcp_udp.val, kern_spec_val, actual_filter_sz);
2775 memcpy(&ib_spec->tcp_udp.mask, kern_spec_mask, actual_filter_sz);
2777 case IB_FLOW_SPEC_VXLAN_TUNNEL:
2778 ib_filter_sz = offsetof(struct ib_flow_tunnel_filter, real_sz);
2779 actual_filter_sz = spec_filter_size(kern_spec_mask,
2782 if (actual_filter_sz <= 0)
2784 ib_spec->tunnel.size = sizeof(struct ib_flow_spec_tunnel);
2785 memcpy(&ib_spec->tunnel.val, kern_spec_val, actual_filter_sz);
2786 memcpy(&ib_spec->tunnel.mask, kern_spec_mask, actual_filter_sz);
2788 if ((ntohl(ib_spec->tunnel.mask.tunnel_id)) >= BIT(24) ||
2789 (ntohl(ib_spec->tunnel.val.tunnel_id)) >= BIT(24))
2792 case IB_FLOW_SPEC_ESP:
2793 ib_filter_sz = offsetof(struct ib_flow_esp_filter, real_sz);
2794 actual_filter_sz = spec_filter_size(kern_spec_mask,
2797 if (actual_filter_sz <= 0)
2799 ib_spec->esp.size = sizeof(struct ib_flow_spec_esp);
2800 memcpy(&ib_spec->esp.val, kern_spec_val, actual_filter_sz);
2801 memcpy(&ib_spec->esp.mask, kern_spec_mask, actual_filter_sz);
2803 case IB_FLOW_SPEC_GRE:
2804 ib_filter_sz = offsetof(struct ib_flow_gre_filter, real_sz);
2805 actual_filter_sz = spec_filter_size(kern_spec_mask,
2808 if (actual_filter_sz <= 0)
2810 ib_spec->gre.size = sizeof(struct ib_flow_spec_gre);
2811 memcpy(&ib_spec->gre.val, kern_spec_val, actual_filter_sz);
2812 memcpy(&ib_spec->gre.mask, kern_spec_mask, actual_filter_sz);
2814 case IB_FLOW_SPEC_MPLS:
2815 ib_filter_sz = offsetof(struct ib_flow_mpls_filter, real_sz);
2816 actual_filter_sz = spec_filter_size(kern_spec_mask,
2819 if (actual_filter_sz <= 0)
2821 ib_spec->mpls.size = sizeof(struct ib_flow_spec_mpls);
2822 memcpy(&ib_spec->mpls.val, kern_spec_val, actual_filter_sz);
2823 memcpy(&ib_spec->mpls.mask, kern_spec_mask, actual_filter_sz);
2831 static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec *kern_spec,
2832 union ib_flow_spec *ib_spec)
2834 size_t kern_filter_sz;
2835 void *kern_spec_mask;
2836 void *kern_spec_val;
2838 if (check_sub_overflow((size_t)kern_spec->hdr.size,
2839 sizeof(struct ib_uverbs_flow_spec_hdr),
2843 kern_filter_sz /= 2;
2845 kern_spec_val = (void *)kern_spec +
2846 sizeof(struct ib_uverbs_flow_spec_hdr);
2847 kern_spec_mask = kern_spec_val + kern_filter_sz;
2849 return ib_uverbs_kern_spec_to_ib_spec_filter(kern_spec->type,
2852 kern_filter_sz, ib_spec);
2855 static int kern_spec_to_ib_spec(struct uverbs_attr_bundle *attrs,
2856 struct ib_uverbs_flow_spec *kern_spec,
2857 union ib_flow_spec *ib_spec,
2858 struct ib_uflow_resources *uflow_res)
2860 if (kern_spec->reserved)
2863 if (kern_spec->type >= IB_FLOW_SPEC_ACTION_TAG)
2864 return kern_spec_to_ib_spec_action(attrs, kern_spec, ib_spec,
2867 return kern_spec_to_ib_spec_filter(kern_spec, ib_spec);
2870 static int ib_uverbs_ex_create_wq(struct uverbs_attr_bundle *attrs)
2872 struct ib_uverbs_ex_create_wq cmd;
2873 struct ib_uverbs_ex_create_wq_resp resp = {};
2874 struct ib_uwq_object *obj;
2879 struct ib_wq_init_attr wq_init_attr = {};
2880 struct ib_device *ib_dev;
2882 err = uverbs_request(attrs, &cmd, sizeof(cmd));
2889 obj = (struct ib_uwq_object *)uobj_alloc(UVERBS_OBJECT_WQ, attrs,
2892 return PTR_ERR(obj);
2894 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
2900 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
2906 wq_init_attr.cq = cq;
2907 wq_init_attr.max_sge = cmd.max_sge;
2908 wq_init_attr.max_wr = cmd.max_wr;
2909 wq_init_attr.wq_type = cmd.wq_type;
2910 wq_init_attr.event_handler = ib_uverbs_wq_event_handler;
2911 wq_init_attr.create_flags = cmd.create_flags;
2912 INIT_LIST_HEAD(&obj->uevent.event_list);
2913 obj->uevent.uobject.user_handle = cmd.user_handle;
2915 wq = pd->device->ops.create_wq(pd, &wq_init_attr, &attrs->driver_udata);
2922 obj->uevent.uobject.object = wq;
2923 wq->wq_type = wq_init_attr.wq_type;
2926 wq->device = pd->device;
2927 atomic_set(&wq->usecnt, 0);
2928 atomic_inc(&pd->usecnt);
2929 atomic_inc(&cq->usecnt);
2930 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
2931 if (obj->uevent.event_file)
2932 uverbs_uobject_get(&obj->uevent.event_file->uobj);
2934 uobj_put_obj_read(pd);
2935 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
2936 UVERBS_LOOKUP_READ);
2937 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
2939 resp.wq_handle = obj->uevent.uobject.id;
2940 resp.max_sge = wq_init_attr.max_sge;
2941 resp.max_wr = wq_init_attr.max_wr;
2942 resp.wqn = wq->wq_num;
2943 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
2944 return uverbs_response(attrs, &resp, sizeof(resp));
2947 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
2948 UVERBS_LOOKUP_READ);
2950 uobj_put_obj_read(pd);
2952 uobj_alloc_abort(&obj->uevent.uobject, attrs);
2957 static int ib_uverbs_ex_destroy_wq(struct uverbs_attr_bundle *attrs)
2959 struct ib_uverbs_ex_destroy_wq cmd;
2960 struct ib_uverbs_ex_destroy_wq_resp resp = {};
2961 struct ib_uobject *uobj;
2962 struct ib_uwq_object *obj;
2965 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2972 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
2973 uobj = uobj_get_destroy(UVERBS_OBJECT_WQ, cmd.wq_handle, attrs);
2975 return PTR_ERR(uobj);
2977 obj = container_of(uobj, struct ib_uwq_object, uevent.uobject);
2978 resp.events_reported = obj->uevent.events_reported;
2980 uobj_put_destroy(uobj);
2982 return uverbs_response(attrs, &resp, sizeof(resp));
2985 static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs)
2987 struct ib_uverbs_ex_modify_wq cmd;
2989 struct ib_wq_attr wq_attr = {};
2992 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2999 if (cmd.attr_mask > (IB_WQ_STATE | IB_WQ_CUR_STATE | IB_WQ_FLAGS))
3002 wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, cmd.wq_handle, attrs);
3006 if (cmd.attr_mask & IB_WQ_FLAGS) {
3007 wq_attr.flags = cmd.flags;
3008 wq_attr.flags_mask = cmd.flags_mask;
3011 if (cmd.attr_mask & IB_WQ_CUR_STATE) {
3012 if (cmd.curr_wq_state > IB_WQS_ERR)
3015 wq_attr.curr_wq_state = cmd.curr_wq_state;
3017 wq_attr.curr_wq_state = wq->state;
3020 if (cmd.attr_mask & IB_WQ_STATE) {
3021 if (cmd.wq_state > IB_WQS_ERR)
3024 wq_attr.wq_state = cmd.wq_state;
3026 wq_attr.wq_state = wq_attr.curr_wq_state;
3029 ret = wq->device->ops.modify_wq(wq, &wq_attr, cmd.attr_mask,
3030 &attrs->driver_udata);
3031 rdma_lookup_put_uobject(&wq->uobject->uevent.uobject,
3032 UVERBS_LOOKUP_READ);
3036 static int ib_uverbs_ex_create_rwq_ind_table(struct uverbs_attr_bundle *attrs)
3038 struct ib_uverbs_ex_create_rwq_ind_table cmd;
3039 struct ib_uverbs_ex_create_rwq_ind_table_resp resp = {};
3040 struct ib_uobject *uobj;
3042 struct ib_rwq_ind_table_init_attr init_attr = {};
3043 struct ib_rwq_ind_table *rwq_ind_tbl;
3044 struct ib_wq **wqs = NULL;
3045 u32 *wqs_handles = NULL;
3046 struct ib_wq *wq = NULL;
3047 int i, num_read_wqs;
3049 struct uverbs_req_iter iter;
3050 struct ib_device *ib_dev;
3052 err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
3059 if (cmd.log_ind_tbl_size > IB_USER_VERBS_MAX_LOG_IND_TBL_SIZE)
3062 num_wq_handles = 1 << cmd.log_ind_tbl_size;
3063 wqs_handles = kcalloc(num_wq_handles, sizeof(*wqs_handles),
3068 err = uverbs_request_next(&iter, wqs_handles,
3069 num_wq_handles * sizeof(__u32));
3073 err = uverbs_request_finish(&iter);
3077 wqs = kcalloc(num_wq_handles, sizeof(*wqs), GFP_KERNEL);
3083 for (num_read_wqs = 0; num_read_wqs < num_wq_handles;
3085 wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ,
3086 wqs_handles[num_read_wqs], attrs);
3092 wqs[num_read_wqs] = wq;
3093 atomic_inc(&wqs[num_read_wqs]->usecnt);
3096 uobj = uobj_alloc(UVERBS_OBJECT_RWQ_IND_TBL, attrs, &ib_dev);
3098 err = PTR_ERR(uobj);
3102 rwq_ind_tbl = rdma_zalloc_drv_obj(ib_dev, ib_rwq_ind_table);
3108 init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size;
3109 init_attr.ind_tbl = wqs;
3111 rwq_ind_tbl->ind_tbl = wqs;
3112 rwq_ind_tbl->log_ind_tbl_size = init_attr.log_ind_tbl_size;
3113 rwq_ind_tbl->uobject = uobj;
3114 uobj->object = rwq_ind_tbl;
3115 rwq_ind_tbl->device = ib_dev;
3116 atomic_set(&rwq_ind_tbl->usecnt, 0);
3118 err = ib_dev->ops.create_rwq_ind_table(rwq_ind_tbl, &init_attr,
3119 &attrs->driver_udata);
3123 for (i = 0; i < num_wq_handles; i++)
3124 rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject,
3125 UVERBS_LOOKUP_READ);
3127 uobj_finalize_uobj_create(uobj, attrs);
3129 resp.ind_tbl_handle = uobj->id;
3130 resp.ind_tbl_num = rwq_ind_tbl->ind_tbl_num;
3131 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
3132 return uverbs_response(attrs, &resp, sizeof(resp));
3137 uobj_alloc_abort(uobj, attrs);
3139 for (i = 0; i < num_read_wqs; i++) {
3140 rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject,
3141 UVERBS_LOOKUP_READ);
3142 atomic_dec(&wqs[i]->usecnt);
3150 static int ib_uverbs_ex_destroy_rwq_ind_table(struct uverbs_attr_bundle *attrs)
3152 struct ib_uverbs_ex_destroy_rwq_ind_table cmd;
3155 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3162 return uobj_perform_destroy(UVERBS_OBJECT_RWQ_IND_TBL,
3163 cmd.ind_tbl_handle, attrs);
3166 static int ib_uverbs_ex_create_flow(struct uverbs_attr_bundle *attrs)
3168 struct ib_uverbs_create_flow cmd;
3169 struct ib_uverbs_create_flow_resp resp = {};
3170 struct ib_uobject *uobj;
3171 struct ib_flow *flow_id;
3172 struct ib_uverbs_flow_attr *kern_flow_attr;
3173 struct ib_flow_attr *flow_attr;
3175 struct ib_uflow_resources *uflow_res;
3176 struct ib_uverbs_flow_spec_hdr *kern_spec;
3177 struct uverbs_req_iter iter;
3181 struct ib_device *ib_dev;
3183 err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
3190 if (!capable(CAP_NET_RAW))
3193 if (cmd.flow_attr.flags >= IB_FLOW_ATTR_FLAGS_RESERVED)
3196 if ((cmd.flow_attr.flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
3197 ((cmd.flow_attr.type == IB_FLOW_ATTR_ALL_DEFAULT) ||
3198 (cmd.flow_attr.type == IB_FLOW_ATTR_MC_DEFAULT)))
3201 if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS)
3204 if (cmd.flow_attr.size >
3205 (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec)))
3208 if (cmd.flow_attr.reserved[0] ||
3209 cmd.flow_attr.reserved[1])
3212 if (cmd.flow_attr.num_of_specs) {
3213 kern_flow_attr = kmalloc(sizeof(*kern_flow_attr) + cmd.flow_attr.size,
3215 if (!kern_flow_attr)
3218 *kern_flow_attr = cmd.flow_attr;
3219 err = uverbs_request_next(&iter, &kern_flow_attr->flow_specs,
3220 cmd.flow_attr.size);
3224 kern_flow_attr = &cmd.flow_attr;
3227 err = uverbs_request_finish(&iter);
3231 uobj = uobj_alloc(UVERBS_OBJECT_FLOW, attrs, &ib_dev);
3233 err = PTR_ERR(uobj);
3237 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
3243 if (qp->qp_type != IB_QPT_UD && qp->qp_type != IB_QPT_RAW_PACKET) {
3248 flow_attr = kzalloc(struct_size(flow_attr, flows,
3249 cmd.flow_attr.num_of_specs), GFP_KERNEL);
3254 uflow_res = flow_resources_alloc(cmd.flow_attr.num_of_specs);
3257 goto err_free_flow_attr;
3260 flow_attr->type = kern_flow_attr->type;
3261 flow_attr->priority = kern_flow_attr->priority;
3262 flow_attr->num_of_specs = kern_flow_attr->num_of_specs;
3263 flow_attr->port = kern_flow_attr->port;
3264 flow_attr->flags = kern_flow_attr->flags;
3265 flow_attr->size = sizeof(*flow_attr);
3267 kern_spec = kern_flow_attr->flow_specs;
3268 ib_spec = flow_attr + 1;
3269 for (i = 0; i < flow_attr->num_of_specs &&
3270 cmd.flow_attr.size >= sizeof(*kern_spec) &&
3271 cmd.flow_attr.size >= kern_spec->size;
3273 err = kern_spec_to_ib_spec(
3274 attrs, (struct ib_uverbs_flow_spec *)kern_spec,
3275 ib_spec, uflow_res);
3280 ((union ib_flow_spec *) ib_spec)->size;
3281 cmd.flow_attr.size -= kern_spec->size;
3282 kern_spec = ((void *)kern_spec) + kern_spec->size;
3283 ib_spec += ((union ib_flow_spec *) ib_spec)->size;
3285 if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) {
3286 pr_warn("create flow failed, flow %d: %d bytes left from uverb cmd\n",
3287 i, cmd.flow_attr.size);
3292 flow_id = qp->device->ops.create_flow(qp, flow_attr,
3293 &attrs->driver_udata);
3295 if (IS_ERR(flow_id)) {
3296 err = PTR_ERR(flow_id);
3300 ib_set_flow(uobj, flow_id, qp, qp->device, uflow_res);
3302 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
3303 UVERBS_LOOKUP_READ);
3306 if (cmd.flow_attr.num_of_specs)
3307 kfree(kern_flow_attr);
3308 uobj_finalize_uobj_create(uobj, attrs);
3310 resp.flow_handle = uobj->id;
3311 return uverbs_response(attrs, &resp, sizeof(resp));
3314 ib_uverbs_flow_resources_free(uflow_res);
3318 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
3319 UVERBS_LOOKUP_READ);
3321 uobj_alloc_abort(uobj, attrs);
3323 if (cmd.flow_attr.num_of_specs)
3324 kfree(kern_flow_attr);
3328 static int ib_uverbs_ex_destroy_flow(struct uverbs_attr_bundle *attrs)
3330 struct ib_uverbs_destroy_flow cmd;
3333 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3340 return uobj_perform_destroy(UVERBS_OBJECT_FLOW, cmd.flow_handle, attrs);
3343 static int __uverbs_create_xsrq(struct uverbs_attr_bundle *attrs,
3344 struct ib_uverbs_create_xsrq *cmd,
3345 struct ib_udata *udata)
3347 struct ib_uverbs_create_srq_resp resp = {};
3348 struct ib_usrq_object *obj;
3351 struct ib_srq_init_attr attr;
3353 struct ib_uobject *xrcd_uobj;
3354 struct ib_device *ib_dev;
3356 obj = (struct ib_usrq_object *)uobj_alloc(UVERBS_OBJECT_SRQ, attrs,
3359 return PTR_ERR(obj);
3361 if (cmd->srq_type == IB_SRQT_TM)
3362 attr.ext.tag_matching.max_num_tags = cmd->max_num_tags;
3364 if (cmd->srq_type == IB_SRQT_XRC) {
3365 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->xrcd_handle,
3367 if (IS_ERR(xrcd_uobj)) {
3372 attr.ext.xrc.xrcd = (struct ib_xrcd *)xrcd_uobj->object;
3373 if (!attr.ext.xrc.xrcd) {
3378 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
3379 atomic_inc(&obj->uxrcd->refcnt);
3382 if (ib_srq_has_cq(cmd->srq_type)) {
3383 attr.ext.cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ,
3384 cmd->cq_handle, attrs);
3391 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, attrs);
3397 attr.event_handler = ib_uverbs_srq_event_handler;
3398 attr.srq_type = cmd->srq_type;
3399 attr.attr.max_wr = cmd->max_wr;
3400 attr.attr.max_sge = cmd->max_sge;
3401 attr.attr.srq_limit = cmd->srq_limit;
3403 INIT_LIST_HEAD(&obj->uevent.event_list);
3404 obj->uevent.uobject.user_handle = cmd->user_handle;
3406 srq = ib_create_srq_user(pd, &attr, obj, udata);
3412 obj->uevent.uobject.object = srq;
3413 obj->uevent.uobject.user_handle = cmd->user_handle;
3414 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
3415 if (obj->uevent.event_file)
3416 uverbs_uobject_get(&obj->uevent.event_file->uobj);
3418 if (cmd->srq_type == IB_SRQT_XRC)
3419 resp.srqn = srq->ext.xrc.srq_num;
3421 if (cmd->srq_type == IB_SRQT_XRC)
3422 uobj_put_read(xrcd_uobj);
3424 if (ib_srq_has_cq(cmd->srq_type))
3425 rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject,
3426 UVERBS_LOOKUP_READ);
3428 uobj_put_obj_read(pd);
3429 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
3431 resp.srq_handle = obj->uevent.uobject.id;
3432 resp.max_wr = attr.attr.max_wr;
3433 resp.max_sge = attr.attr.max_sge;
3434 return uverbs_response(attrs, &resp, sizeof(resp));
3437 uobj_put_obj_read(pd);
3439 if (ib_srq_has_cq(cmd->srq_type))
3440 rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject,
3441 UVERBS_LOOKUP_READ);
3444 if (cmd->srq_type == IB_SRQT_XRC) {
3445 atomic_dec(&obj->uxrcd->refcnt);
3446 uobj_put_read(xrcd_uobj);
3450 uobj_alloc_abort(&obj->uevent.uobject, attrs);
3454 static int ib_uverbs_create_srq(struct uverbs_attr_bundle *attrs)
3456 struct ib_uverbs_create_srq cmd;
3457 struct ib_uverbs_create_xsrq xcmd;
3460 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3464 memset(&xcmd, 0, sizeof(xcmd));
3465 xcmd.response = cmd.response;
3466 xcmd.user_handle = cmd.user_handle;
3467 xcmd.srq_type = IB_SRQT_BASIC;
3468 xcmd.pd_handle = cmd.pd_handle;
3469 xcmd.max_wr = cmd.max_wr;
3470 xcmd.max_sge = cmd.max_sge;
3471 xcmd.srq_limit = cmd.srq_limit;
3473 return __uverbs_create_xsrq(attrs, &xcmd, &attrs->driver_udata);
3476 static int ib_uverbs_create_xsrq(struct uverbs_attr_bundle *attrs)
3478 struct ib_uverbs_create_xsrq cmd;
3481 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3485 return __uverbs_create_xsrq(attrs, &cmd, &attrs->driver_udata);
3488 static int ib_uverbs_modify_srq(struct uverbs_attr_bundle *attrs)
3490 struct ib_uverbs_modify_srq cmd;
3492 struct ib_srq_attr attr;
3495 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3499 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3503 attr.max_wr = cmd.max_wr;
3504 attr.srq_limit = cmd.srq_limit;
3506 ret = srq->device->ops.modify_srq(srq, &attr, cmd.attr_mask,
3507 &attrs->driver_udata);
3509 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
3510 UVERBS_LOOKUP_READ);
3515 static int ib_uverbs_query_srq(struct uverbs_attr_bundle *attrs)
3517 struct ib_uverbs_query_srq cmd;
3518 struct ib_uverbs_query_srq_resp resp;
3519 struct ib_srq_attr attr;
3523 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3527 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3531 ret = ib_query_srq(srq, &attr);
3533 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
3534 UVERBS_LOOKUP_READ);
3539 memset(&resp, 0, sizeof resp);
3541 resp.max_wr = attr.max_wr;
3542 resp.max_sge = attr.max_sge;
3543 resp.srq_limit = attr.srq_limit;
3545 return uverbs_response(attrs, &resp, sizeof(resp));
3548 static int ib_uverbs_destroy_srq(struct uverbs_attr_bundle *attrs)
3550 struct ib_uverbs_destroy_srq cmd;
3551 struct ib_uverbs_destroy_srq_resp resp;
3552 struct ib_uobject *uobj;
3553 struct ib_uevent_object *obj;
3556 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3560 uobj = uobj_get_destroy(UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3562 return PTR_ERR(uobj);
3564 obj = container_of(uobj, struct ib_uevent_object, uobject);
3565 memset(&resp, 0, sizeof(resp));
3566 resp.events_reported = obj->events_reported;
3568 uobj_put_destroy(uobj);
3570 return uverbs_response(attrs, &resp, sizeof(resp));
3573 static int ib_uverbs_ex_query_device(struct uverbs_attr_bundle *attrs)
3575 struct ib_uverbs_ex_query_device_resp resp = {};
3576 struct ib_uverbs_ex_query_device cmd;
3577 struct ib_device_attr attr = {0};
3578 struct ib_ucontext *ucontext;
3579 struct ib_device *ib_dev;
3582 ucontext = ib_uverbs_get_ucontext(attrs);
3583 if (IS_ERR(ucontext))
3584 return PTR_ERR(ucontext);
3585 ib_dev = ucontext->device;
3587 err = uverbs_request(attrs, &cmd, sizeof(cmd));
3597 err = ib_dev->ops.query_device(ib_dev, &attr, &attrs->driver_udata);
3601 copy_query_dev_fields(ucontext, &resp.base, &attr);
3603 resp.odp_caps.general_caps = attr.odp_caps.general_caps;
3604 resp.odp_caps.per_transport_caps.rc_odp_caps =
3605 attr.odp_caps.per_transport_caps.rc_odp_caps;
3606 resp.odp_caps.per_transport_caps.uc_odp_caps =
3607 attr.odp_caps.per_transport_caps.uc_odp_caps;
3608 resp.odp_caps.per_transport_caps.ud_odp_caps =
3609 attr.odp_caps.per_transport_caps.ud_odp_caps;
3610 resp.xrc_odp_caps = attr.odp_caps.per_transport_caps.xrc_odp_caps;
3612 resp.timestamp_mask = attr.timestamp_mask;
3613 resp.hca_core_clock = attr.hca_core_clock;
3614 resp.device_cap_flags_ex = attr.device_cap_flags;
3615 resp.rss_caps.supported_qpts = attr.rss_caps.supported_qpts;
3616 resp.rss_caps.max_rwq_indirection_tables =
3617 attr.rss_caps.max_rwq_indirection_tables;
3618 resp.rss_caps.max_rwq_indirection_table_size =
3619 attr.rss_caps.max_rwq_indirection_table_size;
3620 resp.max_wq_type_rq = attr.max_wq_type_rq;
3621 resp.raw_packet_caps = attr.raw_packet_caps;
3622 resp.tm_caps.max_rndv_hdr_size = attr.tm_caps.max_rndv_hdr_size;
3623 resp.tm_caps.max_num_tags = attr.tm_caps.max_num_tags;
3624 resp.tm_caps.max_ops = attr.tm_caps.max_ops;
3625 resp.tm_caps.max_sge = attr.tm_caps.max_sge;
3626 resp.tm_caps.flags = attr.tm_caps.flags;
3627 resp.cq_moderation_caps.max_cq_moderation_count =
3628 attr.cq_caps.max_cq_moderation_count;
3629 resp.cq_moderation_caps.max_cq_moderation_period =
3630 attr.cq_caps.max_cq_moderation_period;
3631 resp.max_dm_size = attr.max_dm_size;
3632 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
3634 return uverbs_response(attrs, &resp, sizeof(resp));
3637 static int ib_uverbs_ex_modify_cq(struct uverbs_attr_bundle *attrs)
3639 struct ib_uverbs_ex_modify_cq cmd;
3643 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3647 if (!cmd.attr_mask || cmd.reserved)
3650 if (cmd.attr_mask > IB_CQ_MODERATE)
3653 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
3657 ret = rdma_set_cq_moderation(cq, cmd.attr.cq_count, cmd.attr.cq_period);
3659 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
3660 UVERBS_LOOKUP_READ);
3665 * Describe the input structs for write(). Some write methods have an input
3666 * only struct, most have an input and output. If the struct has an output then
3667 * the 'response' u64 must be the first field in the request structure.
3669 * If udata is present then both the request and response structs have a
3670 * trailing driver_data flex array. In this case the size of the base struct
3671 * cannot be changed.
3673 #define UAPI_DEF_WRITE_IO(req, resp) \
3674 .write.has_resp = 1 + \
3675 BUILD_BUG_ON_ZERO(offsetof(req, response) != 0) + \
3676 BUILD_BUG_ON_ZERO(sizeof_field(req, response) != \
3678 .write.req_size = sizeof(req), .write.resp_size = sizeof(resp)
3680 #define UAPI_DEF_WRITE_I(req) .write.req_size = sizeof(req)
3682 #define UAPI_DEF_WRITE_UDATA_IO(req, resp) \
3683 UAPI_DEF_WRITE_IO(req, resp), \
3684 .write.has_udata = \
3686 BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \
3688 BUILD_BUG_ON_ZERO(offsetof(resp, driver_data) != \
3691 #define UAPI_DEF_WRITE_UDATA_I(req) \
3692 UAPI_DEF_WRITE_I(req), \
3693 .write.has_udata = \
3694 1 + BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \
3698 * The _EX versions are for use with WRITE_EX and allow the last struct member
3699 * to be specified. Buffers that do not include that member will be rejected.
3701 #define UAPI_DEF_WRITE_IO_EX(req, req_last_member, resp, resp_last_member) \
3702 .write.has_resp = 1, \
3703 .write.req_size = offsetofend(req, req_last_member), \
3704 .write.resp_size = offsetofend(resp, resp_last_member)
3706 #define UAPI_DEF_WRITE_I_EX(req, req_last_member) \
3707 .write.req_size = offsetofend(req, req_last_member)
3709 const struct uapi_definition uverbs_def_write_intf[] = {
3710 DECLARE_UVERBS_OBJECT(
3712 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_AH,
3713 ib_uverbs_create_ah,
3714 UAPI_DEF_WRITE_UDATA_IO(
3715 struct ib_uverbs_create_ah,
3716 struct ib_uverbs_create_ah_resp),
3717 UAPI_DEF_METHOD_NEEDS_FN(create_ah)),
3718 DECLARE_UVERBS_WRITE(
3719 IB_USER_VERBS_CMD_DESTROY_AH,
3720 ib_uverbs_destroy_ah,
3721 UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_ah),
3722 UAPI_DEF_METHOD_NEEDS_FN(destroy_ah))),
3724 DECLARE_UVERBS_OBJECT(
3725 UVERBS_OBJECT_COMP_CHANNEL,
3726 DECLARE_UVERBS_WRITE(
3727 IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
3728 ib_uverbs_create_comp_channel,
3730 struct ib_uverbs_create_comp_channel,
3731 struct ib_uverbs_create_comp_channel_resp))),
3733 DECLARE_UVERBS_OBJECT(
3735 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_CQ,
3736 ib_uverbs_create_cq,
3737 UAPI_DEF_WRITE_UDATA_IO(
3738 struct ib_uverbs_create_cq,
3739 struct ib_uverbs_create_cq_resp),
3740 UAPI_DEF_METHOD_NEEDS_FN(create_cq)),
3741 DECLARE_UVERBS_WRITE(
3742 IB_USER_VERBS_CMD_DESTROY_CQ,
3743 ib_uverbs_destroy_cq,
3744 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_cq,
3745 struct ib_uverbs_destroy_cq_resp),
3746 UAPI_DEF_METHOD_NEEDS_FN(destroy_cq)),
3747 DECLARE_UVERBS_WRITE(
3748 IB_USER_VERBS_CMD_POLL_CQ,
3750 UAPI_DEF_WRITE_IO(struct ib_uverbs_poll_cq,
3751 struct ib_uverbs_poll_cq_resp),
3752 UAPI_DEF_METHOD_NEEDS_FN(poll_cq)),
3753 DECLARE_UVERBS_WRITE(
3754 IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
3755 ib_uverbs_req_notify_cq,
3756 UAPI_DEF_WRITE_I(struct ib_uverbs_req_notify_cq),
3757 UAPI_DEF_METHOD_NEEDS_FN(req_notify_cq)),
3758 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_RESIZE_CQ,
3759 ib_uverbs_resize_cq,
3760 UAPI_DEF_WRITE_UDATA_IO(
3761 struct ib_uverbs_resize_cq,
3762 struct ib_uverbs_resize_cq_resp),
3763 UAPI_DEF_METHOD_NEEDS_FN(resize_cq)),
3764 DECLARE_UVERBS_WRITE_EX(
3765 IB_USER_VERBS_EX_CMD_CREATE_CQ,
3766 ib_uverbs_ex_create_cq,
3767 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_cq,
3769 struct ib_uverbs_ex_create_cq_resp,
3771 UAPI_DEF_METHOD_NEEDS_FN(create_cq)),
3772 DECLARE_UVERBS_WRITE_EX(
3773 IB_USER_VERBS_EX_CMD_MODIFY_CQ,
3774 ib_uverbs_ex_modify_cq,
3775 UAPI_DEF_WRITE_I(struct ib_uverbs_ex_modify_cq),
3776 UAPI_DEF_METHOD_NEEDS_FN(create_cq))),
3778 DECLARE_UVERBS_OBJECT(
3779 UVERBS_OBJECT_DEVICE,
3780 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_GET_CONTEXT,
3781 ib_uverbs_get_context,
3782 UAPI_DEF_WRITE_UDATA_IO(
3783 struct ib_uverbs_get_context,
3784 struct ib_uverbs_get_context_resp)),
3785 DECLARE_UVERBS_WRITE(
3786 IB_USER_VERBS_CMD_QUERY_DEVICE,
3787 ib_uverbs_query_device,
3788 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_device,
3789 struct ib_uverbs_query_device_resp)),
3790 DECLARE_UVERBS_WRITE(
3791 IB_USER_VERBS_CMD_QUERY_PORT,
3792 ib_uverbs_query_port,
3793 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_port,
3794 struct ib_uverbs_query_port_resp),
3795 UAPI_DEF_METHOD_NEEDS_FN(query_port)),
3796 DECLARE_UVERBS_WRITE_EX(
3797 IB_USER_VERBS_EX_CMD_QUERY_DEVICE,
3798 ib_uverbs_ex_query_device,
3799 UAPI_DEF_WRITE_IO_EX(
3800 struct ib_uverbs_ex_query_device,
3802 struct ib_uverbs_ex_query_device_resp,
3804 UAPI_DEF_METHOD_NEEDS_FN(query_device)),
3805 UAPI_DEF_OBJ_NEEDS_FN(alloc_ucontext),
3806 UAPI_DEF_OBJ_NEEDS_FN(dealloc_ucontext)),
3808 DECLARE_UVERBS_OBJECT(
3810 DECLARE_UVERBS_WRITE_EX(
3811 IB_USER_VERBS_EX_CMD_CREATE_FLOW,
3812 ib_uverbs_ex_create_flow,
3813 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_create_flow,
3815 struct ib_uverbs_create_flow_resp,
3817 UAPI_DEF_METHOD_NEEDS_FN(create_flow)),
3818 DECLARE_UVERBS_WRITE_EX(
3819 IB_USER_VERBS_EX_CMD_DESTROY_FLOW,
3820 ib_uverbs_ex_destroy_flow,
3821 UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_flow),
3822 UAPI_DEF_METHOD_NEEDS_FN(destroy_flow))),
3824 DECLARE_UVERBS_OBJECT(
3826 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_DEREG_MR,
3828 UAPI_DEF_WRITE_I(struct ib_uverbs_dereg_mr),
3829 UAPI_DEF_METHOD_NEEDS_FN(dereg_mr)),
3830 DECLARE_UVERBS_WRITE(
3831 IB_USER_VERBS_CMD_REG_MR,
3833 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_reg_mr,
3834 struct ib_uverbs_reg_mr_resp),
3835 UAPI_DEF_METHOD_NEEDS_FN(reg_user_mr)),
3836 DECLARE_UVERBS_WRITE(
3837 IB_USER_VERBS_CMD_REREG_MR,
3839 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_rereg_mr,
3840 struct ib_uverbs_rereg_mr_resp),
3841 UAPI_DEF_METHOD_NEEDS_FN(rereg_user_mr))),
3843 DECLARE_UVERBS_OBJECT(
3845 DECLARE_UVERBS_WRITE(
3846 IB_USER_VERBS_CMD_ALLOC_MW,
3848 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_mw,
3849 struct ib_uverbs_alloc_mw_resp),
3850 UAPI_DEF_METHOD_NEEDS_FN(alloc_mw)),
3851 DECLARE_UVERBS_WRITE(
3852 IB_USER_VERBS_CMD_DEALLOC_MW,
3853 ib_uverbs_dealloc_mw,
3854 UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_mw),
3855 UAPI_DEF_METHOD_NEEDS_FN(dealloc_mw))),
3857 DECLARE_UVERBS_OBJECT(
3859 DECLARE_UVERBS_WRITE(
3860 IB_USER_VERBS_CMD_ALLOC_PD,
3862 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_pd,
3863 struct ib_uverbs_alloc_pd_resp),
3864 UAPI_DEF_METHOD_NEEDS_FN(alloc_pd)),
3865 DECLARE_UVERBS_WRITE(
3866 IB_USER_VERBS_CMD_DEALLOC_PD,
3867 ib_uverbs_dealloc_pd,
3868 UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_pd),
3869 UAPI_DEF_METHOD_NEEDS_FN(dealloc_pd))),
3871 DECLARE_UVERBS_OBJECT(
3873 DECLARE_UVERBS_WRITE(
3874 IB_USER_VERBS_CMD_ATTACH_MCAST,
3875 ib_uverbs_attach_mcast,
3876 UAPI_DEF_WRITE_I(struct ib_uverbs_attach_mcast),
3877 UAPI_DEF_METHOD_NEEDS_FN(attach_mcast),
3878 UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)),
3879 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_QP,
3880 ib_uverbs_create_qp,
3881 UAPI_DEF_WRITE_UDATA_IO(
3882 struct ib_uverbs_create_qp,
3883 struct ib_uverbs_create_qp_resp),
3884 UAPI_DEF_METHOD_NEEDS_FN(create_qp)),
3885 DECLARE_UVERBS_WRITE(
3886 IB_USER_VERBS_CMD_DESTROY_QP,
3887 ib_uverbs_destroy_qp,
3888 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_qp,
3889 struct ib_uverbs_destroy_qp_resp),
3890 UAPI_DEF_METHOD_NEEDS_FN(destroy_qp)),
3891 DECLARE_UVERBS_WRITE(
3892 IB_USER_VERBS_CMD_DETACH_MCAST,
3893 ib_uverbs_detach_mcast,
3894 UAPI_DEF_WRITE_I(struct ib_uverbs_detach_mcast),
3895 UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)),
3896 DECLARE_UVERBS_WRITE(
3897 IB_USER_VERBS_CMD_MODIFY_QP,
3898 ib_uverbs_modify_qp,
3899 UAPI_DEF_WRITE_I(struct ib_uverbs_modify_qp),
3900 UAPI_DEF_METHOD_NEEDS_FN(modify_qp)),
3901 DECLARE_UVERBS_WRITE(
3902 IB_USER_VERBS_CMD_POST_RECV,
3903 ib_uverbs_post_recv,
3904 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_recv,
3905 struct ib_uverbs_post_recv_resp),
3906 UAPI_DEF_METHOD_NEEDS_FN(post_recv)),
3907 DECLARE_UVERBS_WRITE(
3908 IB_USER_VERBS_CMD_POST_SEND,
3909 ib_uverbs_post_send,
3910 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_send,
3911 struct ib_uverbs_post_send_resp),
3912 UAPI_DEF_METHOD_NEEDS_FN(post_send)),
3913 DECLARE_UVERBS_WRITE(
3914 IB_USER_VERBS_CMD_QUERY_QP,
3916 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_qp,
3917 struct ib_uverbs_query_qp_resp),
3918 UAPI_DEF_METHOD_NEEDS_FN(query_qp)),
3919 DECLARE_UVERBS_WRITE_EX(
3920 IB_USER_VERBS_EX_CMD_CREATE_QP,
3921 ib_uverbs_ex_create_qp,
3922 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_qp,
3924 struct ib_uverbs_ex_create_qp_resp,
3926 UAPI_DEF_METHOD_NEEDS_FN(create_qp)),
3927 DECLARE_UVERBS_WRITE_EX(
3928 IB_USER_VERBS_EX_CMD_MODIFY_QP,
3929 ib_uverbs_ex_modify_qp,
3930 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_modify_qp,
3932 struct ib_uverbs_ex_modify_qp_resp,
3934 UAPI_DEF_METHOD_NEEDS_FN(modify_qp))),
3936 DECLARE_UVERBS_OBJECT(
3937 UVERBS_OBJECT_RWQ_IND_TBL,
3938 DECLARE_UVERBS_WRITE_EX(
3939 IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL,
3940 ib_uverbs_ex_create_rwq_ind_table,
3941 UAPI_DEF_WRITE_IO_EX(
3942 struct ib_uverbs_ex_create_rwq_ind_table,
3944 struct ib_uverbs_ex_create_rwq_ind_table_resp,
3946 UAPI_DEF_METHOD_NEEDS_FN(create_rwq_ind_table)),
3947 DECLARE_UVERBS_WRITE_EX(
3948 IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL,
3949 ib_uverbs_ex_destroy_rwq_ind_table,
3951 struct ib_uverbs_ex_destroy_rwq_ind_table),
3952 UAPI_DEF_METHOD_NEEDS_FN(destroy_rwq_ind_table))),
3954 DECLARE_UVERBS_OBJECT(
3956 DECLARE_UVERBS_WRITE_EX(
3957 IB_USER_VERBS_EX_CMD_CREATE_WQ,
3958 ib_uverbs_ex_create_wq,
3959 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_wq,
3961 struct ib_uverbs_ex_create_wq_resp,
3963 UAPI_DEF_METHOD_NEEDS_FN(create_wq)),
3964 DECLARE_UVERBS_WRITE_EX(
3965 IB_USER_VERBS_EX_CMD_DESTROY_WQ,
3966 ib_uverbs_ex_destroy_wq,
3967 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_destroy_wq,
3969 struct ib_uverbs_ex_destroy_wq_resp,
3971 UAPI_DEF_METHOD_NEEDS_FN(destroy_wq)),
3972 DECLARE_UVERBS_WRITE_EX(
3973 IB_USER_VERBS_EX_CMD_MODIFY_WQ,
3974 ib_uverbs_ex_modify_wq,
3975 UAPI_DEF_WRITE_I_EX(struct ib_uverbs_ex_modify_wq,
3977 UAPI_DEF_METHOD_NEEDS_FN(modify_wq))),
3979 DECLARE_UVERBS_OBJECT(
3981 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_SRQ,
3982 ib_uverbs_create_srq,
3983 UAPI_DEF_WRITE_UDATA_IO(
3984 struct ib_uverbs_create_srq,
3985 struct ib_uverbs_create_srq_resp),
3986 UAPI_DEF_METHOD_NEEDS_FN(create_srq)),
3987 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_XSRQ,
3988 ib_uverbs_create_xsrq,
3989 UAPI_DEF_WRITE_UDATA_IO(
3990 struct ib_uverbs_create_xsrq,
3991 struct ib_uverbs_create_srq_resp),
3992 UAPI_DEF_METHOD_NEEDS_FN(create_srq)),
3993 DECLARE_UVERBS_WRITE(
3994 IB_USER_VERBS_CMD_DESTROY_SRQ,
3995 ib_uverbs_destroy_srq,
3996 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_srq,
3997 struct ib_uverbs_destroy_srq_resp),
3998 UAPI_DEF_METHOD_NEEDS_FN(destroy_srq)),
3999 DECLARE_UVERBS_WRITE(
4000 IB_USER_VERBS_CMD_MODIFY_SRQ,
4001 ib_uverbs_modify_srq,
4002 UAPI_DEF_WRITE_UDATA_I(struct ib_uverbs_modify_srq),
4003 UAPI_DEF_METHOD_NEEDS_FN(modify_srq)),
4004 DECLARE_UVERBS_WRITE(
4005 IB_USER_VERBS_CMD_POST_SRQ_RECV,
4006 ib_uverbs_post_srq_recv,
4007 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_srq_recv,
4008 struct ib_uverbs_post_srq_recv_resp),
4009 UAPI_DEF_METHOD_NEEDS_FN(post_srq_recv)),
4010 DECLARE_UVERBS_WRITE(
4011 IB_USER_VERBS_CMD_QUERY_SRQ,
4012 ib_uverbs_query_srq,
4013 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_srq,
4014 struct ib_uverbs_query_srq_resp),
4015 UAPI_DEF_METHOD_NEEDS_FN(query_srq))),
4017 DECLARE_UVERBS_OBJECT(
4019 DECLARE_UVERBS_WRITE(
4020 IB_USER_VERBS_CMD_CLOSE_XRCD,
4021 ib_uverbs_close_xrcd,
4022 UAPI_DEF_WRITE_I(struct ib_uverbs_close_xrcd),
4023 UAPI_DEF_METHOD_NEEDS_FN(dealloc_xrcd)),
4024 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_QP,
4026 UAPI_DEF_WRITE_UDATA_IO(
4027 struct ib_uverbs_open_qp,
4028 struct ib_uverbs_create_qp_resp)),
4029 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_XRCD,
4030 ib_uverbs_open_xrcd,
4031 UAPI_DEF_WRITE_UDATA_IO(
4032 struct ib_uverbs_open_xrcd,
4033 struct ib_uverbs_open_xrcd_resp),
4034 UAPI_DEF_METHOD_NEEDS_FN(alloc_xrcd))),