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;
753 rdma_restrack_new(&mr->res, RDMA_RESTRACK_MR);
754 rdma_restrack_set_name(&mr->res, NULL);
755 rdma_restrack_add(&mr->res);
758 uobj_put_obj_read(pd);
759 uobj_finalize_uobj_create(uobj, attrs);
761 resp.lkey = mr->lkey;
762 resp.rkey = mr->rkey;
763 resp.mr_handle = uobj->id;
764 return uverbs_response(attrs, &resp, sizeof(resp));
767 uobj_put_obj_read(pd);
769 uobj_alloc_abort(uobj, attrs);
773 static int ib_uverbs_rereg_mr(struct uverbs_attr_bundle *attrs)
775 struct ib_uverbs_rereg_mr cmd;
776 struct ib_uverbs_rereg_mr_resp resp;
777 struct ib_pd *pd = NULL;
779 struct ib_pd *old_pd;
781 struct ib_uobject *uobj;
783 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
787 if (cmd.flags & ~IB_MR_REREG_SUPPORTED || !cmd.flags)
790 if ((cmd.flags & IB_MR_REREG_TRANS) &&
791 (!cmd.start || !cmd.hca_va || 0 >= cmd.length ||
792 (cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)))
795 uobj = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle, attrs);
797 return PTR_ERR(uobj);
806 if (cmd.flags & IB_MR_REREG_ACCESS) {
807 ret = ib_check_mr_access(cmd.access_flags);
812 if (cmd.flags & IB_MR_REREG_PD) {
813 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle,
822 ret = mr->device->ops.rereg_user_mr(mr, cmd.flags, cmd.start,
823 cmd.length, cmd.hca_va,
824 cmd.access_flags, pd,
825 &attrs->driver_udata);
829 if (cmd.flags & IB_MR_REREG_PD) {
830 atomic_inc(&pd->usecnt);
832 atomic_dec(&old_pd->usecnt);
835 if (cmd.flags & IB_MR_REREG_TRANS)
836 mr->iova = cmd.hca_va;
838 memset(&resp, 0, sizeof(resp));
839 resp.lkey = mr->lkey;
840 resp.rkey = mr->rkey;
842 ret = uverbs_response(attrs, &resp, sizeof(resp));
845 if (cmd.flags & IB_MR_REREG_PD)
846 uobj_put_obj_read(pd);
849 uobj_put_write(uobj);
854 static int ib_uverbs_dereg_mr(struct uverbs_attr_bundle *attrs)
856 struct ib_uverbs_dereg_mr cmd;
859 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
863 return uobj_perform_destroy(UVERBS_OBJECT_MR, cmd.mr_handle, attrs);
866 static int ib_uverbs_alloc_mw(struct uverbs_attr_bundle *attrs)
868 struct ib_uverbs_alloc_mw cmd;
869 struct ib_uverbs_alloc_mw_resp resp = {};
870 struct ib_uobject *uobj;
874 struct ib_device *ib_dev;
876 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
880 uobj = uobj_alloc(UVERBS_OBJECT_MW, attrs, &ib_dev);
882 return PTR_ERR(uobj);
884 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
890 if (cmd.mw_type != IB_MW_TYPE_1 && cmd.mw_type != IB_MW_TYPE_2) {
895 mw = rdma_zalloc_drv_obj(ib_dev, ib_mw);
904 mw->type = cmd.mw_type;
906 ret = pd->device->ops.alloc_mw(mw, &attrs->driver_udata);
910 atomic_inc(&pd->usecnt);
913 uobj_put_obj_read(pd);
914 uobj_finalize_uobj_create(uobj, attrs);
916 resp.rkey = mw->rkey;
917 resp.mw_handle = uobj->id;
918 return uverbs_response(attrs, &resp, sizeof(resp));
923 uobj_put_obj_read(pd);
925 uobj_alloc_abort(uobj, attrs);
929 static int ib_uverbs_dealloc_mw(struct uverbs_attr_bundle *attrs)
931 struct ib_uverbs_dealloc_mw cmd;
934 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
938 return uobj_perform_destroy(UVERBS_OBJECT_MW, cmd.mw_handle, attrs);
941 static int ib_uverbs_create_comp_channel(struct uverbs_attr_bundle *attrs)
943 struct ib_uverbs_create_comp_channel cmd;
944 struct ib_uverbs_create_comp_channel_resp resp;
945 struct ib_uobject *uobj;
946 struct ib_uverbs_completion_event_file *ev_file;
947 struct ib_device *ib_dev;
950 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
954 uobj = uobj_alloc(UVERBS_OBJECT_COMP_CHANNEL, attrs, &ib_dev);
956 return PTR_ERR(uobj);
958 ev_file = container_of(uobj, struct ib_uverbs_completion_event_file,
960 ib_uverbs_init_event_queue(&ev_file->ev_queue);
961 uobj_finalize_uobj_create(uobj, attrs);
964 return uverbs_response(attrs, &resp, sizeof(resp));
967 static int create_cq(struct uverbs_attr_bundle *attrs,
968 struct ib_uverbs_ex_create_cq *cmd)
970 struct ib_ucq_object *obj;
971 struct ib_uverbs_completion_event_file *ev_file = NULL;
974 struct ib_uverbs_ex_create_cq_resp resp = {};
975 struct ib_cq_init_attr attr = {};
976 struct ib_device *ib_dev;
978 if (cmd->comp_vector >= attrs->ufile->device->num_comp_vectors)
981 obj = (struct ib_ucq_object *)uobj_alloc(UVERBS_OBJECT_CQ, attrs,
986 if (cmd->comp_channel >= 0) {
987 ev_file = ib_uverbs_lookup_comp_file(cmd->comp_channel, attrs);
988 if (IS_ERR(ev_file)) {
989 ret = PTR_ERR(ev_file);
994 obj->uevent.uobject.user_handle = cmd->user_handle;
995 INIT_LIST_HEAD(&obj->comp_list);
996 INIT_LIST_HEAD(&obj->uevent.event_list);
999 attr.comp_vector = cmd->comp_vector;
1000 attr.flags = cmd->flags;
1002 cq = rdma_zalloc_drv_obj(ib_dev, ib_cq);
1007 cq->device = ib_dev;
1009 cq->comp_handler = ib_uverbs_comp_handler;
1010 cq->event_handler = ib_uverbs_cq_event_handler;
1011 cq->cq_context = ev_file ? &ev_file->ev_queue : NULL;
1012 atomic_set(&cq->usecnt, 0);
1014 rdma_restrack_new(&cq->res, RDMA_RESTRACK_CQ);
1015 rdma_restrack_set_name(&cq->res, NULL);
1017 ret = ib_dev->ops.create_cq(cq, &attr, &attrs->driver_udata);
1020 rdma_restrack_add(&cq->res);
1022 obj->uevent.uobject.object = cq;
1023 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
1024 if (obj->uevent.event_file)
1025 uverbs_uobject_get(&obj->uevent.event_file->uobj);
1026 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1028 resp.base.cq_handle = obj->uevent.uobject.id;
1029 resp.base.cqe = cq->cqe;
1030 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
1031 return uverbs_response(attrs, &resp, sizeof(resp));
1034 rdma_restrack_put(&cq->res);
1038 ib_uverbs_release_ucq(ev_file, obj);
1040 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1044 static int ib_uverbs_create_cq(struct uverbs_attr_bundle *attrs)
1046 struct ib_uverbs_create_cq cmd;
1047 struct ib_uverbs_ex_create_cq cmd_ex;
1050 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1054 memset(&cmd_ex, 0, sizeof(cmd_ex));
1055 cmd_ex.user_handle = cmd.user_handle;
1056 cmd_ex.cqe = cmd.cqe;
1057 cmd_ex.comp_vector = cmd.comp_vector;
1058 cmd_ex.comp_channel = cmd.comp_channel;
1060 return create_cq(attrs, &cmd_ex);
1063 static int ib_uverbs_ex_create_cq(struct uverbs_attr_bundle *attrs)
1065 struct ib_uverbs_ex_create_cq cmd;
1068 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1078 return create_cq(attrs, &cmd);
1081 static int ib_uverbs_resize_cq(struct uverbs_attr_bundle *attrs)
1083 struct ib_uverbs_resize_cq cmd;
1084 struct ib_uverbs_resize_cq_resp resp = {};
1088 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1092 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1096 ret = cq->device->ops.resize_cq(cq, cmd.cqe, &attrs->driver_udata);
1102 ret = uverbs_response(attrs, &resp, sizeof(resp));
1104 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1105 UVERBS_LOOKUP_READ);
1110 static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest,
1113 struct ib_uverbs_wc tmp;
1115 tmp.wr_id = wc->wr_id;
1116 tmp.status = wc->status;
1117 tmp.opcode = wc->opcode;
1118 tmp.vendor_err = wc->vendor_err;
1119 tmp.byte_len = wc->byte_len;
1120 tmp.ex.imm_data = wc->ex.imm_data;
1121 tmp.qp_num = wc->qp->qp_num;
1122 tmp.src_qp = wc->src_qp;
1123 tmp.wc_flags = wc->wc_flags;
1124 tmp.pkey_index = wc->pkey_index;
1125 if (rdma_cap_opa_ah(ib_dev, wc->port_num))
1126 tmp.slid = OPA_TO_IB_UCAST_LID(wc->slid);
1128 tmp.slid = ib_lid_cpu16(wc->slid);
1130 tmp.dlid_path_bits = wc->dlid_path_bits;
1131 tmp.port_num = wc->port_num;
1134 if (copy_to_user(dest, &tmp, sizeof tmp))
1140 static int ib_uverbs_poll_cq(struct uverbs_attr_bundle *attrs)
1142 struct ib_uverbs_poll_cq cmd;
1143 struct ib_uverbs_poll_cq_resp resp;
1144 u8 __user *header_ptr;
1145 u8 __user *data_ptr;
1150 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1154 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1158 /* we copy a struct ib_uverbs_poll_cq_resp to user space */
1159 header_ptr = attrs->ucore.outbuf;
1160 data_ptr = header_ptr + sizeof resp;
1162 memset(&resp, 0, sizeof resp);
1163 while (resp.count < cmd.ne) {
1164 ret = ib_poll_cq(cq, 1, &wc);
1170 ret = copy_wc_to_user(cq->device, data_ptr, &wc);
1174 data_ptr += sizeof(struct ib_uverbs_wc);
1178 if (copy_to_user(header_ptr, &resp, sizeof resp)) {
1184 if (uverbs_attr_is_valid(attrs, UVERBS_ATTR_CORE_OUT))
1185 ret = uverbs_output_written(attrs, UVERBS_ATTR_CORE_OUT);
1188 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1189 UVERBS_LOOKUP_READ);
1193 static int ib_uverbs_req_notify_cq(struct uverbs_attr_bundle *attrs)
1195 struct ib_uverbs_req_notify_cq cmd;
1199 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1203 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1207 ib_req_notify_cq(cq, cmd.solicited_only ?
1208 IB_CQ_SOLICITED : IB_CQ_NEXT_COMP);
1210 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1211 UVERBS_LOOKUP_READ);
1215 static int ib_uverbs_destroy_cq(struct uverbs_attr_bundle *attrs)
1217 struct ib_uverbs_destroy_cq cmd;
1218 struct ib_uverbs_destroy_cq_resp resp;
1219 struct ib_uobject *uobj;
1220 struct ib_ucq_object *obj;
1223 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1227 uobj = uobj_get_destroy(UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1229 return PTR_ERR(uobj);
1231 obj = container_of(uobj, struct ib_ucq_object, uevent.uobject);
1232 memset(&resp, 0, sizeof(resp));
1233 resp.comp_events_reported = obj->comp_events_reported;
1234 resp.async_events_reported = obj->uevent.events_reported;
1236 uobj_put_destroy(uobj);
1238 return uverbs_response(attrs, &resp, sizeof(resp));
1241 static int create_qp(struct uverbs_attr_bundle *attrs,
1242 struct ib_uverbs_ex_create_qp *cmd)
1244 struct ib_uqp_object *obj;
1245 struct ib_device *device;
1246 struct ib_pd *pd = NULL;
1247 struct ib_xrcd *xrcd = NULL;
1248 struct ib_uobject *xrcd_uobj = ERR_PTR(-ENOENT);
1249 struct ib_cq *scq = NULL, *rcq = NULL;
1250 struct ib_srq *srq = NULL;
1252 struct ib_qp_init_attr attr = {};
1253 struct ib_uverbs_ex_create_qp_resp resp = {};
1255 struct ib_rwq_ind_table *ind_tbl = NULL;
1257 struct ib_device *ib_dev;
1259 switch (cmd->qp_type) {
1260 case IB_QPT_RAW_PACKET:
1261 if (!capable(CAP_NET_RAW))
1267 case IB_QPT_XRC_INI:
1268 case IB_QPT_XRC_TGT:
1275 obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
1278 return PTR_ERR(obj);
1280 obj->uevent.uobject.user_handle = cmd->user_handle;
1281 mutex_init(&obj->mcast_lock);
1283 if (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE) {
1284 ind_tbl = uobj_get_obj_read(rwq_ind_table,
1285 UVERBS_OBJECT_RWQ_IND_TBL,
1286 cmd->rwq_ind_tbl_handle, attrs);
1292 attr.rwq_ind_tbl = ind_tbl;
1295 if (ind_tbl && (cmd->max_recv_wr || cmd->max_recv_sge || cmd->is_srq)) {
1300 if (ind_tbl && !cmd->max_send_wr)
1303 if (cmd->qp_type == IB_QPT_XRC_TGT) {
1304 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->pd_handle,
1307 if (IS_ERR(xrcd_uobj)) {
1312 xrcd = (struct ib_xrcd *)xrcd_uobj->object;
1317 device = xrcd->device;
1319 if (cmd->qp_type == IB_QPT_XRC_INI) {
1320 cmd->max_recv_wr = 0;
1321 cmd->max_recv_sge = 0;
1324 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ,
1325 cmd->srq_handle, attrs);
1326 if (!srq || srq->srq_type == IB_SRQT_XRC) {
1333 if (cmd->recv_cq_handle != cmd->send_cq_handle) {
1334 rcq = uobj_get_obj_read(
1335 cq, UVERBS_OBJECT_CQ,
1336 cmd->recv_cq_handle, attrs);
1346 scq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ,
1347 cmd->send_cq_handle, attrs);
1350 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle,
1352 if (!pd || (!scq && has_sq)) {
1357 device = pd->device;
1360 attr.event_handler = ib_uverbs_qp_event_handler;
1365 attr.sq_sig_type = cmd->sq_sig_all ? IB_SIGNAL_ALL_WR :
1367 attr.qp_type = cmd->qp_type;
1368 attr.create_flags = 0;
1370 attr.cap.max_send_wr = cmd->max_send_wr;
1371 attr.cap.max_recv_wr = cmd->max_recv_wr;
1372 attr.cap.max_send_sge = cmd->max_send_sge;
1373 attr.cap.max_recv_sge = cmd->max_recv_sge;
1374 attr.cap.max_inline_data = cmd->max_inline_data;
1376 INIT_LIST_HEAD(&obj->uevent.event_list);
1377 INIT_LIST_HEAD(&obj->mcast_list);
1379 attr.create_flags = cmd->create_flags;
1380 if (attr.create_flags & ~(IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK |
1381 IB_QP_CREATE_CROSS_CHANNEL |
1382 IB_QP_CREATE_MANAGED_SEND |
1383 IB_QP_CREATE_MANAGED_RECV |
1384 IB_QP_CREATE_SCATTER_FCS |
1385 IB_QP_CREATE_CVLAN_STRIPPING |
1386 IB_QP_CREATE_SOURCE_QPN |
1387 IB_QP_CREATE_PCI_WRITE_END_PADDING)) {
1392 if (attr.create_flags & IB_QP_CREATE_SOURCE_QPN) {
1393 if (!capable(CAP_NET_RAW)) {
1398 attr.source_qpn = cmd->source_qpn;
1401 if (cmd->qp_type == IB_QPT_XRC_TGT)
1402 qp = ib_create_qp(pd, &attr);
1404 qp = _ib_create_qp(device, pd, &attr, &attrs->driver_udata,
1412 if (cmd->qp_type != IB_QPT_XRC_TGT) {
1413 ret = ib_create_qp_security(qp, device);
1417 atomic_inc(&pd->usecnt);
1419 atomic_inc(&attr.send_cq->usecnt);
1421 atomic_inc(&attr.recv_cq->usecnt);
1423 atomic_inc(&attr.srq->usecnt);
1425 atomic_inc(&ind_tbl->usecnt);
1427 /* It is done in _ib_create_qp for other QP types */
1431 obj->uevent.uobject.object = qp;
1432 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
1433 if (obj->uevent.event_file)
1434 uverbs_uobject_get(&obj->uevent.event_file->uobj);
1437 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object,
1439 atomic_inc(&obj->uxrcd->refcnt);
1440 uobj_put_read(xrcd_uobj);
1444 uobj_put_obj_read(pd);
1446 rdma_lookup_put_uobject(&scq->uobject->uevent.uobject,
1447 UVERBS_LOOKUP_READ);
1448 if (rcq && rcq != scq)
1449 rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
1450 UVERBS_LOOKUP_READ);
1452 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
1453 UVERBS_LOOKUP_READ);
1455 uobj_put_obj_read(ind_tbl);
1456 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1458 resp.base.qpn = qp->qp_num;
1459 resp.base.qp_handle = obj->uevent.uobject.id;
1460 resp.base.max_recv_sge = attr.cap.max_recv_sge;
1461 resp.base.max_send_sge = attr.cap.max_send_sge;
1462 resp.base.max_recv_wr = attr.cap.max_recv_wr;
1463 resp.base.max_send_wr = attr.cap.max_send_wr;
1464 resp.base.max_inline_data = attr.cap.max_inline_data;
1465 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
1466 return uverbs_response(attrs, &resp, sizeof(resp));
1469 ib_destroy_qp_user(qp, uverbs_get_cleared_udata(attrs));
1472 if (!IS_ERR(xrcd_uobj))
1473 uobj_put_read(xrcd_uobj);
1475 uobj_put_obj_read(pd);
1477 rdma_lookup_put_uobject(&scq->uobject->uevent.uobject,
1478 UVERBS_LOOKUP_READ);
1479 if (rcq && rcq != scq)
1480 rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
1481 UVERBS_LOOKUP_READ);
1483 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
1484 UVERBS_LOOKUP_READ);
1486 uobj_put_obj_read(ind_tbl);
1488 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1492 static int ib_uverbs_create_qp(struct uverbs_attr_bundle *attrs)
1494 struct ib_uverbs_create_qp cmd;
1495 struct ib_uverbs_ex_create_qp cmd_ex;
1498 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1502 memset(&cmd_ex, 0, sizeof(cmd_ex));
1503 cmd_ex.user_handle = cmd.user_handle;
1504 cmd_ex.pd_handle = cmd.pd_handle;
1505 cmd_ex.send_cq_handle = cmd.send_cq_handle;
1506 cmd_ex.recv_cq_handle = cmd.recv_cq_handle;
1507 cmd_ex.srq_handle = cmd.srq_handle;
1508 cmd_ex.max_send_wr = cmd.max_send_wr;
1509 cmd_ex.max_recv_wr = cmd.max_recv_wr;
1510 cmd_ex.max_send_sge = cmd.max_send_sge;
1511 cmd_ex.max_recv_sge = cmd.max_recv_sge;
1512 cmd_ex.max_inline_data = cmd.max_inline_data;
1513 cmd_ex.sq_sig_all = cmd.sq_sig_all;
1514 cmd_ex.qp_type = cmd.qp_type;
1515 cmd_ex.is_srq = cmd.is_srq;
1517 return create_qp(attrs, &cmd_ex);
1520 static int ib_uverbs_ex_create_qp(struct uverbs_attr_bundle *attrs)
1522 struct ib_uverbs_ex_create_qp cmd;
1525 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1529 if (cmd.comp_mask & ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK)
1535 return create_qp(attrs, &cmd);
1538 static int ib_uverbs_open_qp(struct uverbs_attr_bundle *attrs)
1540 struct ib_uverbs_create_qp_resp resp = {};
1541 struct ib_uverbs_open_qp cmd;
1542 struct ib_uqp_object *obj;
1543 struct ib_xrcd *xrcd;
1545 struct ib_qp_open_attr attr = {};
1547 struct ib_uobject *xrcd_uobj;
1548 struct ib_device *ib_dev;
1550 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1554 obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
1557 return PTR_ERR(obj);
1559 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd.pd_handle, attrs);
1560 if (IS_ERR(xrcd_uobj)) {
1565 xrcd = (struct ib_xrcd *)xrcd_uobj->object;
1571 attr.event_handler = ib_uverbs_qp_event_handler;
1572 attr.qp_num = cmd.qpn;
1573 attr.qp_type = cmd.qp_type;
1575 INIT_LIST_HEAD(&obj->uevent.event_list);
1576 INIT_LIST_HEAD(&obj->mcast_list);
1578 qp = ib_open_qp(xrcd, &attr);
1584 obj->uevent.uobject.object = qp;
1585 obj->uevent.uobject.user_handle = cmd.user_handle;
1587 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
1588 atomic_inc(&obj->uxrcd->refcnt);
1590 uobj_put_read(xrcd_uobj);
1591 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1593 resp.qpn = qp->qp_num;
1594 resp.qp_handle = obj->uevent.uobject.id;
1595 return uverbs_response(attrs, &resp, sizeof(resp));
1598 uobj_put_read(xrcd_uobj);
1600 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1604 static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest *uverb_attr,
1605 struct rdma_ah_attr *rdma_attr)
1607 const struct ib_global_route *grh;
1609 uverb_attr->dlid = rdma_ah_get_dlid(rdma_attr);
1610 uverb_attr->sl = rdma_ah_get_sl(rdma_attr);
1611 uverb_attr->src_path_bits = rdma_ah_get_path_bits(rdma_attr);
1612 uverb_attr->static_rate = rdma_ah_get_static_rate(rdma_attr);
1613 uverb_attr->is_global = !!(rdma_ah_get_ah_flags(rdma_attr) &
1615 if (uverb_attr->is_global) {
1616 grh = rdma_ah_read_grh(rdma_attr);
1617 memcpy(uverb_attr->dgid, grh->dgid.raw, 16);
1618 uverb_attr->flow_label = grh->flow_label;
1619 uverb_attr->sgid_index = grh->sgid_index;
1620 uverb_attr->hop_limit = grh->hop_limit;
1621 uverb_attr->traffic_class = grh->traffic_class;
1623 uverb_attr->port_num = rdma_ah_get_port_num(rdma_attr);
1626 static int ib_uverbs_query_qp(struct uverbs_attr_bundle *attrs)
1628 struct ib_uverbs_query_qp cmd;
1629 struct ib_uverbs_query_qp_resp resp;
1631 struct ib_qp_attr *attr;
1632 struct ib_qp_init_attr *init_attr;
1635 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1639 attr = kmalloc(sizeof *attr, GFP_KERNEL);
1640 init_attr = kmalloc(sizeof *init_attr, GFP_KERNEL);
1641 if (!attr || !init_attr) {
1646 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
1652 ret = ib_query_qp(qp, attr, cmd.attr_mask, init_attr);
1654 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
1655 UVERBS_LOOKUP_READ);
1660 memset(&resp, 0, sizeof resp);
1662 resp.qp_state = attr->qp_state;
1663 resp.cur_qp_state = attr->cur_qp_state;
1664 resp.path_mtu = attr->path_mtu;
1665 resp.path_mig_state = attr->path_mig_state;
1666 resp.qkey = attr->qkey;
1667 resp.rq_psn = attr->rq_psn;
1668 resp.sq_psn = attr->sq_psn;
1669 resp.dest_qp_num = attr->dest_qp_num;
1670 resp.qp_access_flags = attr->qp_access_flags;
1671 resp.pkey_index = attr->pkey_index;
1672 resp.alt_pkey_index = attr->alt_pkey_index;
1673 resp.sq_draining = attr->sq_draining;
1674 resp.max_rd_atomic = attr->max_rd_atomic;
1675 resp.max_dest_rd_atomic = attr->max_dest_rd_atomic;
1676 resp.min_rnr_timer = attr->min_rnr_timer;
1677 resp.port_num = attr->port_num;
1678 resp.timeout = attr->timeout;
1679 resp.retry_cnt = attr->retry_cnt;
1680 resp.rnr_retry = attr->rnr_retry;
1681 resp.alt_port_num = attr->alt_port_num;
1682 resp.alt_timeout = attr->alt_timeout;
1684 copy_ah_attr_to_uverbs(&resp.dest, &attr->ah_attr);
1685 copy_ah_attr_to_uverbs(&resp.alt_dest, &attr->alt_ah_attr);
1687 resp.max_send_wr = init_attr->cap.max_send_wr;
1688 resp.max_recv_wr = init_attr->cap.max_recv_wr;
1689 resp.max_send_sge = init_attr->cap.max_send_sge;
1690 resp.max_recv_sge = init_attr->cap.max_recv_sge;
1691 resp.max_inline_data = init_attr->cap.max_inline_data;
1692 resp.sq_sig_all = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR;
1694 ret = uverbs_response(attrs, &resp, sizeof(resp));
1703 /* Remove ignored fields set in the attribute mask */
1704 static int modify_qp_mask(enum ib_qp_type qp_type, int mask)
1707 case IB_QPT_XRC_INI:
1708 return mask & ~(IB_QP_MAX_DEST_RD_ATOMIC | IB_QP_MIN_RNR_TIMER);
1709 case IB_QPT_XRC_TGT:
1710 return mask & ~(IB_QP_MAX_QP_RD_ATOMIC | IB_QP_RETRY_CNT |
1717 static void copy_ah_attr_from_uverbs(struct ib_device *dev,
1718 struct rdma_ah_attr *rdma_attr,
1719 struct ib_uverbs_qp_dest *uverb_attr)
1721 rdma_attr->type = rdma_ah_find_type(dev, uverb_attr->port_num);
1722 if (uverb_attr->is_global) {
1723 rdma_ah_set_grh(rdma_attr, NULL,
1724 uverb_attr->flow_label,
1725 uverb_attr->sgid_index,
1726 uverb_attr->hop_limit,
1727 uverb_attr->traffic_class);
1728 rdma_ah_set_dgid_raw(rdma_attr, uverb_attr->dgid);
1730 rdma_ah_set_ah_flags(rdma_attr, 0);
1732 rdma_ah_set_dlid(rdma_attr, uverb_attr->dlid);
1733 rdma_ah_set_sl(rdma_attr, uverb_attr->sl);
1734 rdma_ah_set_path_bits(rdma_attr, uverb_attr->src_path_bits);
1735 rdma_ah_set_static_rate(rdma_attr, uverb_attr->static_rate);
1736 rdma_ah_set_port_num(rdma_attr, uverb_attr->port_num);
1737 rdma_ah_set_make_grd(rdma_attr, false);
1740 static int modify_qp(struct uverbs_attr_bundle *attrs,
1741 struct ib_uverbs_ex_modify_qp *cmd)
1743 struct ib_qp_attr *attr;
1747 attr = kzalloc(sizeof(*attr), GFP_KERNEL);
1751 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd->base.qp_handle,
1758 if ((cmd->base.attr_mask & IB_QP_PORT) &&
1759 !rdma_is_port_valid(qp->device, cmd->base.port_num)) {
1764 if ((cmd->base.attr_mask & IB_QP_AV)) {
1765 if (!rdma_is_port_valid(qp->device, cmd->base.dest.port_num)) {
1770 if (cmd->base.attr_mask & IB_QP_STATE &&
1771 cmd->base.qp_state == IB_QPS_RTR) {
1772 /* We are in INIT->RTR TRANSITION (if we are not,
1773 * this transition will be rejected in subsequent checks).
1774 * In the INIT->RTR transition, we cannot have IB_QP_PORT set,
1775 * but the IB_QP_STATE flag is required.
1777 * Since kernel 3.14 (commit dbf727de7440), the uverbs driver,
1778 * when IB_QP_AV is set, has required inclusion of a valid
1779 * port number in the primary AV. (AVs are created and handled
1780 * differently for infiniband and ethernet (RoCE) ports).
1782 * Check the port number included in the primary AV against
1783 * the port number in the qp struct, which was set (and saved)
1784 * in the RST->INIT transition.
1786 if (cmd->base.dest.port_num != qp->real_qp->port) {
1791 /* We are in SQD->SQD. (If we are not, this transition will
1792 * be rejected later in the verbs layer checks).
1793 * Check for both IB_QP_PORT and IB_QP_AV, these can be set
1794 * together in the SQD->SQD transition.
1796 * If only IP_QP_AV was set, add in IB_QP_PORT as well (the
1797 * verbs layer driver does not track primary port changes
1798 * resulting from path migration. Thus, in SQD, if the primary
1799 * AV is modified, the primary port should also be modified).
1801 * Note that in this transition, the IB_QP_STATE flag
1804 if (((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT))
1805 == (IB_QP_AV | IB_QP_PORT)) &&
1806 cmd->base.port_num != cmd->base.dest.port_num) {
1810 if ((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT))
1812 cmd->base.attr_mask |= IB_QP_PORT;
1813 cmd->base.port_num = cmd->base.dest.port_num;
1818 if ((cmd->base.attr_mask & IB_QP_ALT_PATH) &&
1819 (!rdma_is_port_valid(qp->device, cmd->base.alt_port_num) ||
1820 !rdma_is_port_valid(qp->device, cmd->base.alt_dest.port_num) ||
1821 cmd->base.alt_port_num != cmd->base.alt_dest.port_num)) {
1826 if ((cmd->base.attr_mask & IB_QP_CUR_STATE &&
1827 cmd->base.cur_qp_state > IB_QPS_ERR) ||
1828 (cmd->base.attr_mask & IB_QP_STATE &&
1829 cmd->base.qp_state > IB_QPS_ERR)) {
1834 if (cmd->base.attr_mask & IB_QP_STATE)
1835 attr->qp_state = cmd->base.qp_state;
1836 if (cmd->base.attr_mask & IB_QP_CUR_STATE)
1837 attr->cur_qp_state = cmd->base.cur_qp_state;
1838 if (cmd->base.attr_mask & IB_QP_PATH_MTU)
1839 attr->path_mtu = cmd->base.path_mtu;
1840 if (cmd->base.attr_mask & IB_QP_PATH_MIG_STATE)
1841 attr->path_mig_state = cmd->base.path_mig_state;
1842 if (cmd->base.attr_mask & IB_QP_QKEY)
1843 attr->qkey = cmd->base.qkey;
1844 if (cmd->base.attr_mask & IB_QP_RQ_PSN)
1845 attr->rq_psn = cmd->base.rq_psn;
1846 if (cmd->base.attr_mask & IB_QP_SQ_PSN)
1847 attr->sq_psn = cmd->base.sq_psn;
1848 if (cmd->base.attr_mask & IB_QP_DEST_QPN)
1849 attr->dest_qp_num = cmd->base.dest_qp_num;
1850 if (cmd->base.attr_mask & IB_QP_ACCESS_FLAGS)
1851 attr->qp_access_flags = cmd->base.qp_access_flags;
1852 if (cmd->base.attr_mask & IB_QP_PKEY_INDEX)
1853 attr->pkey_index = cmd->base.pkey_index;
1854 if (cmd->base.attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY)
1855 attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify;
1856 if (cmd->base.attr_mask & IB_QP_MAX_QP_RD_ATOMIC)
1857 attr->max_rd_atomic = cmd->base.max_rd_atomic;
1858 if (cmd->base.attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
1859 attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic;
1860 if (cmd->base.attr_mask & IB_QP_MIN_RNR_TIMER)
1861 attr->min_rnr_timer = cmd->base.min_rnr_timer;
1862 if (cmd->base.attr_mask & IB_QP_PORT)
1863 attr->port_num = cmd->base.port_num;
1864 if (cmd->base.attr_mask & IB_QP_TIMEOUT)
1865 attr->timeout = cmd->base.timeout;
1866 if (cmd->base.attr_mask & IB_QP_RETRY_CNT)
1867 attr->retry_cnt = cmd->base.retry_cnt;
1868 if (cmd->base.attr_mask & IB_QP_RNR_RETRY)
1869 attr->rnr_retry = cmd->base.rnr_retry;
1870 if (cmd->base.attr_mask & IB_QP_ALT_PATH) {
1871 attr->alt_port_num = cmd->base.alt_port_num;
1872 attr->alt_timeout = cmd->base.alt_timeout;
1873 attr->alt_pkey_index = cmd->base.alt_pkey_index;
1875 if (cmd->base.attr_mask & IB_QP_RATE_LIMIT)
1876 attr->rate_limit = cmd->rate_limit;
1878 if (cmd->base.attr_mask & IB_QP_AV)
1879 copy_ah_attr_from_uverbs(qp->device, &attr->ah_attr,
1882 if (cmd->base.attr_mask & IB_QP_ALT_PATH)
1883 copy_ah_attr_from_uverbs(qp->device, &attr->alt_ah_attr,
1884 &cmd->base.alt_dest);
1886 ret = ib_modify_qp_with_udata(qp, attr,
1887 modify_qp_mask(qp->qp_type,
1888 cmd->base.attr_mask),
1889 &attrs->driver_udata);
1892 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
1893 UVERBS_LOOKUP_READ);
1900 static int ib_uverbs_modify_qp(struct uverbs_attr_bundle *attrs)
1902 struct ib_uverbs_ex_modify_qp cmd;
1905 ret = uverbs_request(attrs, &cmd.base, sizeof(cmd.base));
1909 if (cmd.base.attr_mask &
1910 ~((IB_USER_LEGACY_LAST_QP_ATTR_MASK << 1) - 1))
1913 return modify_qp(attrs, &cmd);
1916 static int ib_uverbs_ex_modify_qp(struct uverbs_attr_bundle *attrs)
1918 struct ib_uverbs_ex_modify_qp cmd;
1919 struct ib_uverbs_ex_modify_qp_resp resp = {
1920 .response_length = uverbs_response_length(attrs, sizeof(resp))
1924 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1929 * Last bit is reserved for extending the attr_mask by
1930 * using another field.
1932 BUILD_BUG_ON(IB_USER_LAST_QP_ATTR_MASK == (1ULL << 31));
1934 if (cmd.base.attr_mask &
1935 ~((IB_USER_LAST_QP_ATTR_MASK << 1) - 1))
1938 ret = modify_qp(attrs, &cmd);
1942 return uverbs_response(attrs, &resp, sizeof(resp));
1945 static int ib_uverbs_destroy_qp(struct uverbs_attr_bundle *attrs)
1947 struct ib_uverbs_destroy_qp cmd;
1948 struct ib_uverbs_destroy_qp_resp resp;
1949 struct ib_uobject *uobj;
1950 struct ib_uqp_object *obj;
1953 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1957 uobj = uobj_get_destroy(UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
1959 return PTR_ERR(uobj);
1961 obj = container_of(uobj, struct ib_uqp_object, uevent.uobject);
1962 memset(&resp, 0, sizeof(resp));
1963 resp.events_reported = obj->uevent.events_reported;
1965 uobj_put_destroy(uobj);
1967 return uverbs_response(attrs, &resp, sizeof(resp));
1970 static void *alloc_wr(size_t wr_size, __u32 num_sge)
1972 if (num_sge >= (U32_MAX - ALIGN(wr_size, sizeof (struct ib_sge))) /
1973 sizeof (struct ib_sge))
1976 return kmalloc(ALIGN(wr_size, sizeof (struct ib_sge)) +
1977 num_sge * sizeof (struct ib_sge), GFP_KERNEL);
1980 static int ib_uverbs_post_send(struct uverbs_attr_bundle *attrs)
1982 struct ib_uverbs_post_send cmd;
1983 struct ib_uverbs_post_send_resp resp;
1984 struct ib_uverbs_send_wr *user_wr;
1985 struct ib_send_wr *wr = NULL, *last, *next;
1986 const struct ib_send_wr *bad_wr;
1992 const struct ib_sge __user *sgls;
1993 const void __user *wqes;
1994 struct uverbs_req_iter iter;
1996 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
1999 wqes = uverbs_request_next_ptr(&iter, cmd.wqe_size * cmd.wr_count);
2001 return PTR_ERR(wqes);
2002 sgls = uverbs_request_next_ptr(
2003 &iter, cmd.sge_count * sizeof(struct ib_uverbs_sge));
2005 return PTR_ERR(sgls);
2006 ret = uverbs_request_finish(&iter);
2010 user_wr = kmalloc(cmd.wqe_size, GFP_KERNEL);
2014 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2020 is_ud = qp->qp_type == IB_QPT_UD;
2023 for (i = 0; i < cmd.wr_count; ++i) {
2024 if (copy_from_user(user_wr, wqes + i * cmd.wqe_size,
2030 if (user_wr->num_sge + sg_ind > cmd.sge_count) {
2036 struct ib_ud_wr *ud;
2038 if (user_wr->opcode != IB_WR_SEND &&
2039 user_wr->opcode != IB_WR_SEND_WITH_IMM) {
2044 next_size = sizeof(*ud);
2045 ud = alloc_wr(next_size, user_wr->num_sge);
2051 ud->ah = uobj_get_obj_read(ah, UVERBS_OBJECT_AH,
2052 user_wr->wr.ud.ah, attrs);
2058 ud->remote_qpn = user_wr->wr.ud.remote_qpn;
2059 ud->remote_qkey = user_wr->wr.ud.remote_qkey;
2062 } else if (user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM ||
2063 user_wr->opcode == IB_WR_RDMA_WRITE ||
2064 user_wr->opcode == IB_WR_RDMA_READ) {
2065 struct ib_rdma_wr *rdma;
2067 next_size = sizeof(*rdma);
2068 rdma = alloc_wr(next_size, user_wr->num_sge);
2074 rdma->remote_addr = user_wr->wr.rdma.remote_addr;
2075 rdma->rkey = user_wr->wr.rdma.rkey;
2078 } else if (user_wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP ||
2079 user_wr->opcode == IB_WR_ATOMIC_FETCH_AND_ADD) {
2080 struct ib_atomic_wr *atomic;
2082 next_size = sizeof(*atomic);
2083 atomic = alloc_wr(next_size, user_wr->num_sge);
2089 atomic->remote_addr = user_wr->wr.atomic.remote_addr;
2090 atomic->compare_add = user_wr->wr.atomic.compare_add;
2091 atomic->swap = user_wr->wr.atomic.swap;
2092 atomic->rkey = user_wr->wr.atomic.rkey;
2095 } else if (user_wr->opcode == IB_WR_SEND ||
2096 user_wr->opcode == IB_WR_SEND_WITH_IMM ||
2097 user_wr->opcode == IB_WR_SEND_WITH_INV) {
2098 next_size = sizeof(*next);
2099 next = alloc_wr(next_size, user_wr->num_sge);
2109 if (user_wr->opcode == IB_WR_SEND_WITH_IMM ||
2110 user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) {
2112 (__be32 __force) user_wr->ex.imm_data;
2113 } else if (user_wr->opcode == IB_WR_SEND_WITH_INV) {
2114 next->ex.invalidate_rkey = user_wr->ex.invalidate_rkey;
2124 next->wr_id = user_wr->wr_id;
2125 next->num_sge = user_wr->num_sge;
2126 next->opcode = user_wr->opcode;
2127 next->send_flags = user_wr->send_flags;
2129 if (next->num_sge) {
2130 next->sg_list = (void *) next +
2131 ALIGN(next_size, sizeof(struct ib_sge));
2132 if (copy_from_user(next->sg_list, sgls + sg_ind,
2134 sizeof(struct ib_sge))) {
2138 sg_ind += next->num_sge;
2140 next->sg_list = NULL;
2144 ret = qp->device->ops.post_send(qp->real_qp, wr, &bad_wr);
2146 for (next = wr; next; next = next->next) {
2152 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2157 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2158 UVERBS_LOOKUP_READ);
2161 if (is_ud && ud_wr(wr)->ah)
2162 uobj_put_obj_read(ud_wr(wr)->ah);
2174 static struct ib_recv_wr *
2175 ib_uverbs_unmarshall_recv(struct uverbs_req_iter *iter, u32 wr_count,
2176 u32 wqe_size, u32 sge_count)
2178 struct ib_uverbs_recv_wr *user_wr;
2179 struct ib_recv_wr *wr = NULL, *last, *next;
2183 const struct ib_sge __user *sgls;
2184 const void __user *wqes;
2186 if (wqe_size < sizeof (struct ib_uverbs_recv_wr))
2187 return ERR_PTR(-EINVAL);
2189 wqes = uverbs_request_next_ptr(iter, wqe_size * wr_count);
2191 return ERR_CAST(wqes);
2192 sgls = uverbs_request_next_ptr(
2193 iter, sge_count * sizeof(struct ib_uverbs_sge));
2195 return ERR_CAST(sgls);
2196 ret = uverbs_request_finish(iter);
2198 return ERR_PTR(ret);
2200 user_wr = kmalloc(wqe_size, GFP_KERNEL);
2202 return ERR_PTR(-ENOMEM);
2206 for (i = 0; i < wr_count; ++i) {
2207 if (copy_from_user(user_wr, wqes + i * wqe_size,
2213 if (user_wr->num_sge + sg_ind > sge_count) {
2218 if (user_wr->num_sge >=
2219 (U32_MAX - ALIGN(sizeof *next, sizeof (struct ib_sge))) /
2220 sizeof (struct ib_sge)) {
2225 next = kmalloc(ALIGN(sizeof *next, sizeof (struct ib_sge)) +
2226 user_wr->num_sge * sizeof (struct ib_sge),
2240 next->wr_id = user_wr->wr_id;
2241 next->num_sge = user_wr->num_sge;
2243 if (next->num_sge) {
2244 next->sg_list = (void *) next +
2245 ALIGN(sizeof *next, sizeof (struct ib_sge));
2246 if (copy_from_user(next->sg_list, sgls + sg_ind,
2248 sizeof(struct ib_sge))) {
2252 sg_ind += next->num_sge;
2254 next->sg_list = NULL;
2269 return ERR_PTR(ret);
2272 static int ib_uverbs_post_recv(struct uverbs_attr_bundle *attrs)
2274 struct ib_uverbs_post_recv cmd;
2275 struct ib_uverbs_post_recv_resp resp;
2276 struct ib_recv_wr *wr, *next;
2277 const struct ib_recv_wr *bad_wr;
2280 struct uverbs_req_iter iter;
2282 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2286 wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size,
2291 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2298 ret = qp->device->ops.post_recv(qp->real_qp, wr, &bad_wr);
2300 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2301 UVERBS_LOOKUP_READ);
2303 for (next = wr; next; next = next->next) {
2310 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2323 static int ib_uverbs_post_srq_recv(struct uverbs_attr_bundle *attrs)
2325 struct ib_uverbs_post_srq_recv cmd;
2326 struct ib_uverbs_post_srq_recv_resp resp;
2327 struct ib_recv_wr *wr, *next;
2328 const struct ib_recv_wr *bad_wr;
2331 struct uverbs_req_iter iter;
2333 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2337 wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size,
2342 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
2349 ret = srq->device->ops.post_srq_recv(srq, wr, &bad_wr);
2351 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
2352 UVERBS_LOOKUP_READ);
2355 for (next = wr; next; next = next->next) {
2361 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2375 static int ib_uverbs_create_ah(struct uverbs_attr_bundle *attrs)
2377 struct ib_uverbs_create_ah cmd;
2378 struct ib_uverbs_create_ah_resp resp;
2379 struct ib_uobject *uobj;
2382 struct rdma_ah_attr attr = {};
2384 struct ib_device *ib_dev;
2386 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2390 uobj = uobj_alloc(UVERBS_OBJECT_AH, attrs, &ib_dev);
2392 return PTR_ERR(uobj);
2394 if (!rdma_is_port_valid(ib_dev, cmd.attr.port_num)) {
2399 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
2405 attr.type = rdma_ah_find_type(ib_dev, cmd.attr.port_num);
2406 rdma_ah_set_make_grd(&attr, false);
2407 rdma_ah_set_dlid(&attr, cmd.attr.dlid);
2408 rdma_ah_set_sl(&attr, cmd.attr.sl);
2409 rdma_ah_set_path_bits(&attr, cmd.attr.src_path_bits);
2410 rdma_ah_set_static_rate(&attr, cmd.attr.static_rate);
2411 rdma_ah_set_port_num(&attr, cmd.attr.port_num);
2413 if (cmd.attr.is_global) {
2414 rdma_ah_set_grh(&attr, NULL, cmd.attr.grh.flow_label,
2415 cmd.attr.grh.sgid_index,
2416 cmd.attr.grh.hop_limit,
2417 cmd.attr.grh.traffic_class);
2418 rdma_ah_set_dgid_raw(&attr, cmd.attr.grh.dgid);
2420 rdma_ah_set_ah_flags(&attr, 0);
2423 ah = rdma_create_user_ah(pd, &attr, &attrs->driver_udata);
2430 uobj->user_handle = cmd.user_handle;
2432 uobj_put_obj_read(pd);
2433 uobj_finalize_uobj_create(uobj, attrs);
2435 resp.ah_handle = uobj->id;
2436 return uverbs_response(attrs, &resp, sizeof(resp));
2439 uobj_put_obj_read(pd);
2441 uobj_alloc_abort(uobj, attrs);
2445 static int ib_uverbs_destroy_ah(struct uverbs_attr_bundle *attrs)
2447 struct ib_uverbs_destroy_ah cmd;
2450 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2454 return uobj_perform_destroy(UVERBS_OBJECT_AH, cmd.ah_handle, attrs);
2457 static int ib_uverbs_attach_mcast(struct uverbs_attr_bundle *attrs)
2459 struct ib_uverbs_attach_mcast cmd;
2461 struct ib_uqp_object *obj;
2462 struct ib_uverbs_mcast_entry *mcast;
2465 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2469 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2475 mutex_lock(&obj->mcast_lock);
2476 list_for_each_entry(mcast, &obj->mcast_list, list)
2477 if (cmd.mlid == mcast->lid &&
2478 !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) {
2483 mcast = kmalloc(sizeof *mcast, GFP_KERNEL);
2489 mcast->lid = cmd.mlid;
2490 memcpy(mcast->gid.raw, cmd.gid, sizeof mcast->gid.raw);
2492 ret = ib_attach_mcast(qp, &mcast->gid, cmd.mlid);
2494 list_add_tail(&mcast->list, &obj->mcast_list);
2499 mutex_unlock(&obj->mcast_lock);
2500 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2501 UVERBS_LOOKUP_READ);
2506 static int ib_uverbs_detach_mcast(struct uverbs_attr_bundle *attrs)
2508 struct ib_uverbs_detach_mcast cmd;
2509 struct ib_uqp_object *obj;
2511 struct ib_uverbs_mcast_entry *mcast;
2515 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2519 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2524 mutex_lock(&obj->mcast_lock);
2526 list_for_each_entry(mcast, &obj->mcast_list, list)
2527 if (cmd.mlid == mcast->lid &&
2528 !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) {
2529 list_del(&mcast->list);
2540 ret = ib_detach_mcast(qp, (union ib_gid *)cmd.gid, cmd.mlid);
2543 mutex_unlock(&obj->mcast_lock);
2544 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2545 UVERBS_LOOKUP_READ);
2549 struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
2551 struct ib_uflow_resources *resources;
2553 resources = kzalloc(sizeof(*resources), GFP_KERNEL);
2561 resources->counters =
2562 kcalloc(num_specs, sizeof(*resources->counters), GFP_KERNEL);
2563 resources->collection =
2564 kcalloc(num_specs, sizeof(*resources->collection), GFP_KERNEL);
2566 if (!resources->counters || !resources->collection)
2570 resources->max = num_specs;
2574 kfree(resources->counters);
2579 EXPORT_SYMBOL(flow_resources_alloc);
2581 void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res)
2588 for (i = 0; i < uflow_res->collection_num; i++)
2589 atomic_dec(&uflow_res->collection[i]->usecnt);
2591 for (i = 0; i < uflow_res->counters_num; i++)
2592 atomic_dec(&uflow_res->counters[i]->usecnt);
2594 kfree(uflow_res->collection);
2595 kfree(uflow_res->counters);
2598 EXPORT_SYMBOL(ib_uverbs_flow_resources_free);
2600 void flow_resources_add(struct ib_uflow_resources *uflow_res,
2601 enum ib_flow_spec_type type,
2604 WARN_ON(uflow_res->num >= uflow_res->max);
2607 case IB_FLOW_SPEC_ACTION_HANDLE:
2608 atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt);
2609 uflow_res->collection[uflow_res->collection_num++] =
2610 (struct ib_flow_action *)ibobj;
2612 case IB_FLOW_SPEC_ACTION_COUNT:
2613 atomic_inc(&((struct ib_counters *)ibobj)->usecnt);
2614 uflow_res->counters[uflow_res->counters_num++] =
2615 (struct ib_counters *)ibobj;
2623 EXPORT_SYMBOL(flow_resources_add);
2625 static int kern_spec_to_ib_spec_action(struct uverbs_attr_bundle *attrs,
2626 struct ib_uverbs_flow_spec *kern_spec,
2627 union ib_flow_spec *ib_spec,
2628 struct ib_uflow_resources *uflow_res)
2630 ib_spec->type = kern_spec->type;
2631 switch (ib_spec->type) {
2632 case IB_FLOW_SPEC_ACTION_TAG:
2633 if (kern_spec->flow_tag.size !=
2634 sizeof(struct ib_uverbs_flow_spec_action_tag))
2637 ib_spec->flow_tag.size = sizeof(struct ib_flow_spec_action_tag);
2638 ib_spec->flow_tag.tag_id = kern_spec->flow_tag.tag_id;
2640 case IB_FLOW_SPEC_ACTION_DROP:
2641 if (kern_spec->drop.size !=
2642 sizeof(struct ib_uverbs_flow_spec_action_drop))
2645 ib_spec->drop.size = sizeof(struct ib_flow_spec_action_drop);
2647 case IB_FLOW_SPEC_ACTION_HANDLE:
2648 if (kern_spec->action.size !=
2649 sizeof(struct ib_uverbs_flow_spec_action_handle))
2651 ib_spec->action.act = uobj_get_obj_read(flow_action,
2652 UVERBS_OBJECT_FLOW_ACTION,
2653 kern_spec->action.handle,
2655 if (!ib_spec->action.act)
2657 ib_spec->action.size =
2658 sizeof(struct ib_flow_spec_action_handle);
2659 flow_resources_add(uflow_res,
2660 IB_FLOW_SPEC_ACTION_HANDLE,
2661 ib_spec->action.act);
2662 uobj_put_obj_read(ib_spec->action.act);
2664 case IB_FLOW_SPEC_ACTION_COUNT:
2665 if (kern_spec->flow_count.size !=
2666 sizeof(struct ib_uverbs_flow_spec_action_count))
2668 ib_spec->flow_count.counters =
2669 uobj_get_obj_read(counters,
2670 UVERBS_OBJECT_COUNTERS,
2671 kern_spec->flow_count.handle,
2673 if (!ib_spec->flow_count.counters)
2675 ib_spec->flow_count.size =
2676 sizeof(struct ib_flow_spec_action_count);
2677 flow_resources_add(uflow_res,
2678 IB_FLOW_SPEC_ACTION_COUNT,
2679 ib_spec->flow_count.counters);
2680 uobj_put_obj_read(ib_spec->flow_count.counters);
2688 static ssize_t spec_filter_size(const void *kern_spec_filter, u16 kern_filter_size,
2689 u16 ib_real_filter_sz)
2692 * User space filter structures must be 64 bit aligned, otherwise this
2693 * may pass, but we won't handle additional new attributes.
2696 if (kern_filter_size > ib_real_filter_sz) {
2697 if (memchr_inv(kern_spec_filter +
2698 ib_real_filter_sz, 0,
2699 kern_filter_size - ib_real_filter_sz))
2701 return ib_real_filter_sz;
2703 return kern_filter_size;
2706 int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type,
2707 const void *kern_spec_mask,
2708 const void *kern_spec_val,
2709 size_t kern_filter_sz,
2710 union ib_flow_spec *ib_spec)
2712 ssize_t actual_filter_sz;
2713 ssize_t ib_filter_sz;
2715 /* User flow spec size must be aligned to 4 bytes */
2716 if (kern_filter_sz != ALIGN(kern_filter_sz, 4))
2719 ib_spec->type = type;
2721 if (ib_spec->type == (IB_FLOW_SPEC_INNER | IB_FLOW_SPEC_VXLAN_TUNNEL))
2724 switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) {
2725 case IB_FLOW_SPEC_ETH:
2726 ib_filter_sz = offsetof(struct ib_flow_eth_filter, real_sz);
2727 actual_filter_sz = spec_filter_size(kern_spec_mask,
2730 if (actual_filter_sz <= 0)
2732 ib_spec->size = sizeof(struct ib_flow_spec_eth);
2733 memcpy(&ib_spec->eth.val, kern_spec_val, actual_filter_sz);
2734 memcpy(&ib_spec->eth.mask, kern_spec_mask, actual_filter_sz);
2736 case IB_FLOW_SPEC_IPV4:
2737 ib_filter_sz = offsetof(struct ib_flow_ipv4_filter, real_sz);
2738 actual_filter_sz = spec_filter_size(kern_spec_mask,
2741 if (actual_filter_sz <= 0)
2743 ib_spec->size = sizeof(struct ib_flow_spec_ipv4);
2744 memcpy(&ib_spec->ipv4.val, kern_spec_val, actual_filter_sz);
2745 memcpy(&ib_spec->ipv4.mask, kern_spec_mask, actual_filter_sz);
2747 case IB_FLOW_SPEC_IPV6:
2748 ib_filter_sz = offsetof(struct ib_flow_ipv6_filter, real_sz);
2749 actual_filter_sz = spec_filter_size(kern_spec_mask,
2752 if (actual_filter_sz <= 0)
2754 ib_spec->size = sizeof(struct ib_flow_spec_ipv6);
2755 memcpy(&ib_spec->ipv6.val, kern_spec_val, actual_filter_sz);
2756 memcpy(&ib_spec->ipv6.mask, kern_spec_mask, actual_filter_sz);
2758 if ((ntohl(ib_spec->ipv6.mask.flow_label)) >= BIT(20) ||
2759 (ntohl(ib_spec->ipv6.val.flow_label)) >= BIT(20))
2762 case IB_FLOW_SPEC_TCP:
2763 case IB_FLOW_SPEC_UDP:
2764 ib_filter_sz = offsetof(struct ib_flow_tcp_udp_filter, real_sz);
2765 actual_filter_sz = spec_filter_size(kern_spec_mask,
2768 if (actual_filter_sz <= 0)
2770 ib_spec->size = sizeof(struct ib_flow_spec_tcp_udp);
2771 memcpy(&ib_spec->tcp_udp.val, kern_spec_val, actual_filter_sz);
2772 memcpy(&ib_spec->tcp_udp.mask, kern_spec_mask, actual_filter_sz);
2774 case IB_FLOW_SPEC_VXLAN_TUNNEL:
2775 ib_filter_sz = offsetof(struct ib_flow_tunnel_filter, real_sz);
2776 actual_filter_sz = spec_filter_size(kern_spec_mask,
2779 if (actual_filter_sz <= 0)
2781 ib_spec->tunnel.size = sizeof(struct ib_flow_spec_tunnel);
2782 memcpy(&ib_spec->tunnel.val, kern_spec_val, actual_filter_sz);
2783 memcpy(&ib_spec->tunnel.mask, kern_spec_mask, actual_filter_sz);
2785 if ((ntohl(ib_spec->tunnel.mask.tunnel_id)) >= BIT(24) ||
2786 (ntohl(ib_spec->tunnel.val.tunnel_id)) >= BIT(24))
2789 case IB_FLOW_SPEC_ESP:
2790 ib_filter_sz = offsetof(struct ib_flow_esp_filter, real_sz);
2791 actual_filter_sz = spec_filter_size(kern_spec_mask,
2794 if (actual_filter_sz <= 0)
2796 ib_spec->esp.size = sizeof(struct ib_flow_spec_esp);
2797 memcpy(&ib_spec->esp.val, kern_spec_val, actual_filter_sz);
2798 memcpy(&ib_spec->esp.mask, kern_spec_mask, actual_filter_sz);
2800 case IB_FLOW_SPEC_GRE:
2801 ib_filter_sz = offsetof(struct ib_flow_gre_filter, real_sz);
2802 actual_filter_sz = spec_filter_size(kern_spec_mask,
2805 if (actual_filter_sz <= 0)
2807 ib_spec->gre.size = sizeof(struct ib_flow_spec_gre);
2808 memcpy(&ib_spec->gre.val, kern_spec_val, actual_filter_sz);
2809 memcpy(&ib_spec->gre.mask, kern_spec_mask, actual_filter_sz);
2811 case IB_FLOW_SPEC_MPLS:
2812 ib_filter_sz = offsetof(struct ib_flow_mpls_filter, real_sz);
2813 actual_filter_sz = spec_filter_size(kern_spec_mask,
2816 if (actual_filter_sz <= 0)
2818 ib_spec->mpls.size = sizeof(struct ib_flow_spec_mpls);
2819 memcpy(&ib_spec->mpls.val, kern_spec_val, actual_filter_sz);
2820 memcpy(&ib_spec->mpls.mask, kern_spec_mask, actual_filter_sz);
2828 static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec *kern_spec,
2829 union ib_flow_spec *ib_spec)
2831 size_t kern_filter_sz;
2832 void *kern_spec_mask;
2833 void *kern_spec_val;
2835 if (check_sub_overflow((size_t)kern_spec->hdr.size,
2836 sizeof(struct ib_uverbs_flow_spec_hdr),
2840 kern_filter_sz /= 2;
2842 kern_spec_val = (void *)kern_spec +
2843 sizeof(struct ib_uverbs_flow_spec_hdr);
2844 kern_spec_mask = kern_spec_val + kern_filter_sz;
2846 return ib_uverbs_kern_spec_to_ib_spec_filter(kern_spec->type,
2849 kern_filter_sz, ib_spec);
2852 static int kern_spec_to_ib_spec(struct uverbs_attr_bundle *attrs,
2853 struct ib_uverbs_flow_spec *kern_spec,
2854 union ib_flow_spec *ib_spec,
2855 struct ib_uflow_resources *uflow_res)
2857 if (kern_spec->reserved)
2860 if (kern_spec->type >= IB_FLOW_SPEC_ACTION_TAG)
2861 return kern_spec_to_ib_spec_action(attrs, kern_spec, ib_spec,
2864 return kern_spec_to_ib_spec_filter(kern_spec, ib_spec);
2867 static int ib_uverbs_ex_create_wq(struct uverbs_attr_bundle *attrs)
2869 struct ib_uverbs_ex_create_wq cmd;
2870 struct ib_uverbs_ex_create_wq_resp resp = {};
2871 struct ib_uwq_object *obj;
2876 struct ib_wq_init_attr wq_init_attr = {};
2877 struct ib_device *ib_dev;
2879 err = uverbs_request(attrs, &cmd, sizeof(cmd));
2886 obj = (struct ib_uwq_object *)uobj_alloc(UVERBS_OBJECT_WQ, attrs,
2889 return PTR_ERR(obj);
2891 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
2897 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
2903 wq_init_attr.cq = cq;
2904 wq_init_attr.max_sge = cmd.max_sge;
2905 wq_init_attr.max_wr = cmd.max_wr;
2906 wq_init_attr.wq_type = cmd.wq_type;
2907 wq_init_attr.event_handler = ib_uverbs_wq_event_handler;
2908 wq_init_attr.create_flags = cmd.create_flags;
2909 INIT_LIST_HEAD(&obj->uevent.event_list);
2910 obj->uevent.uobject.user_handle = cmd.user_handle;
2912 wq = pd->device->ops.create_wq(pd, &wq_init_attr, &attrs->driver_udata);
2919 obj->uevent.uobject.object = wq;
2920 wq->wq_type = wq_init_attr.wq_type;
2923 wq->device = pd->device;
2924 atomic_set(&wq->usecnt, 0);
2925 atomic_inc(&pd->usecnt);
2926 atomic_inc(&cq->usecnt);
2927 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
2928 if (obj->uevent.event_file)
2929 uverbs_uobject_get(&obj->uevent.event_file->uobj);
2931 uobj_put_obj_read(pd);
2932 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
2933 UVERBS_LOOKUP_READ);
2934 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
2936 resp.wq_handle = obj->uevent.uobject.id;
2937 resp.max_sge = wq_init_attr.max_sge;
2938 resp.max_wr = wq_init_attr.max_wr;
2939 resp.wqn = wq->wq_num;
2940 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
2941 return uverbs_response(attrs, &resp, sizeof(resp));
2944 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
2945 UVERBS_LOOKUP_READ);
2947 uobj_put_obj_read(pd);
2949 uobj_alloc_abort(&obj->uevent.uobject, attrs);
2954 static int ib_uverbs_ex_destroy_wq(struct uverbs_attr_bundle *attrs)
2956 struct ib_uverbs_ex_destroy_wq cmd;
2957 struct ib_uverbs_ex_destroy_wq_resp resp = {};
2958 struct ib_uobject *uobj;
2959 struct ib_uwq_object *obj;
2962 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2969 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
2970 uobj = uobj_get_destroy(UVERBS_OBJECT_WQ, cmd.wq_handle, attrs);
2972 return PTR_ERR(uobj);
2974 obj = container_of(uobj, struct ib_uwq_object, uevent.uobject);
2975 resp.events_reported = obj->uevent.events_reported;
2977 uobj_put_destroy(uobj);
2979 return uverbs_response(attrs, &resp, sizeof(resp));
2982 static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs)
2984 struct ib_uverbs_ex_modify_wq cmd;
2986 struct ib_wq_attr wq_attr = {};
2989 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2996 if (cmd.attr_mask > (IB_WQ_STATE | IB_WQ_CUR_STATE | IB_WQ_FLAGS))
2999 wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, cmd.wq_handle, attrs);
3003 wq_attr.curr_wq_state = cmd.curr_wq_state;
3004 wq_attr.wq_state = cmd.wq_state;
3005 if (cmd.attr_mask & IB_WQ_FLAGS) {
3006 wq_attr.flags = cmd.flags;
3007 wq_attr.flags_mask = cmd.flags_mask;
3009 ret = wq->device->ops.modify_wq(wq, &wq_attr, cmd.attr_mask,
3010 &attrs->driver_udata);
3011 rdma_lookup_put_uobject(&wq->uobject->uevent.uobject,
3012 UVERBS_LOOKUP_READ);
3016 static int ib_uverbs_ex_create_rwq_ind_table(struct uverbs_attr_bundle *attrs)
3018 struct ib_uverbs_ex_create_rwq_ind_table cmd;
3019 struct ib_uverbs_ex_create_rwq_ind_table_resp resp = {};
3020 struct ib_uobject *uobj;
3022 struct ib_rwq_ind_table_init_attr init_attr = {};
3023 struct ib_rwq_ind_table *rwq_ind_tbl;
3024 struct ib_wq **wqs = NULL;
3025 u32 *wqs_handles = NULL;
3026 struct ib_wq *wq = NULL;
3027 int i, num_read_wqs;
3029 struct uverbs_req_iter iter;
3030 struct ib_device *ib_dev;
3032 err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
3039 if (cmd.log_ind_tbl_size > IB_USER_VERBS_MAX_LOG_IND_TBL_SIZE)
3042 num_wq_handles = 1 << cmd.log_ind_tbl_size;
3043 wqs_handles = kcalloc(num_wq_handles, sizeof(*wqs_handles),
3048 err = uverbs_request_next(&iter, wqs_handles,
3049 num_wq_handles * sizeof(__u32));
3053 err = uverbs_request_finish(&iter);
3057 wqs = kcalloc(num_wq_handles, sizeof(*wqs), GFP_KERNEL);
3063 for (num_read_wqs = 0; num_read_wqs < num_wq_handles;
3065 wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ,
3066 wqs_handles[num_read_wqs], attrs);
3072 wqs[num_read_wqs] = wq;
3073 atomic_inc(&wqs[num_read_wqs]->usecnt);
3076 uobj = uobj_alloc(UVERBS_OBJECT_RWQ_IND_TBL, attrs, &ib_dev);
3078 err = PTR_ERR(uobj);
3082 rwq_ind_tbl = rdma_zalloc_drv_obj(ib_dev, ib_rwq_ind_table);
3088 init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size;
3089 init_attr.ind_tbl = wqs;
3091 rwq_ind_tbl->ind_tbl = wqs;
3092 rwq_ind_tbl->log_ind_tbl_size = init_attr.log_ind_tbl_size;
3093 rwq_ind_tbl->uobject = uobj;
3094 uobj->object = rwq_ind_tbl;
3095 rwq_ind_tbl->device = ib_dev;
3096 atomic_set(&rwq_ind_tbl->usecnt, 0);
3098 err = ib_dev->ops.create_rwq_ind_table(rwq_ind_tbl, &init_attr,
3099 &attrs->driver_udata);
3103 for (i = 0; i < num_wq_handles; i++)
3104 rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject,
3105 UVERBS_LOOKUP_READ);
3107 uobj_finalize_uobj_create(uobj, attrs);
3109 resp.ind_tbl_handle = uobj->id;
3110 resp.ind_tbl_num = rwq_ind_tbl->ind_tbl_num;
3111 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
3112 return uverbs_response(attrs, &resp, sizeof(resp));
3117 uobj_alloc_abort(uobj, attrs);
3119 for (i = 0; i < num_read_wqs; i++) {
3120 rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject,
3121 UVERBS_LOOKUP_READ);
3122 atomic_dec(&wqs[i]->usecnt);
3130 static int ib_uverbs_ex_destroy_rwq_ind_table(struct uverbs_attr_bundle *attrs)
3132 struct ib_uverbs_ex_destroy_rwq_ind_table cmd;
3135 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3142 return uobj_perform_destroy(UVERBS_OBJECT_RWQ_IND_TBL,
3143 cmd.ind_tbl_handle, attrs);
3146 static int ib_uverbs_ex_create_flow(struct uverbs_attr_bundle *attrs)
3148 struct ib_uverbs_create_flow cmd;
3149 struct ib_uverbs_create_flow_resp resp = {};
3150 struct ib_uobject *uobj;
3151 struct ib_flow *flow_id;
3152 struct ib_uverbs_flow_attr *kern_flow_attr;
3153 struct ib_flow_attr *flow_attr;
3155 struct ib_uflow_resources *uflow_res;
3156 struct ib_uverbs_flow_spec_hdr *kern_spec;
3157 struct uverbs_req_iter iter;
3161 struct ib_device *ib_dev;
3163 err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
3170 if (!capable(CAP_NET_RAW))
3173 if (cmd.flow_attr.flags >= IB_FLOW_ATTR_FLAGS_RESERVED)
3176 if ((cmd.flow_attr.flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
3177 ((cmd.flow_attr.type == IB_FLOW_ATTR_ALL_DEFAULT) ||
3178 (cmd.flow_attr.type == IB_FLOW_ATTR_MC_DEFAULT)))
3181 if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS)
3184 if (cmd.flow_attr.size >
3185 (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec)))
3188 if (cmd.flow_attr.reserved[0] ||
3189 cmd.flow_attr.reserved[1])
3192 if (cmd.flow_attr.num_of_specs) {
3193 kern_flow_attr = kmalloc(sizeof(*kern_flow_attr) + cmd.flow_attr.size,
3195 if (!kern_flow_attr)
3198 *kern_flow_attr = cmd.flow_attr;
3199 err = uverbs_request_next(&iter, &kern_flow_attr->flow_specs,
3200 cmd.flow_attr.size);
3204 kern_flow_attr = &cmd.flow_attr;
3207 err = uverbs_request_finish(&iter);
3211 uobj = uobj_alloc(UVERBS_OBJECT_FLOW, attrs, &ib_dev);
3213 err = PTR_ERR(uobj);
3217 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
3223 if (qp->qp_type != IB_QPT_UD && qp->qp_type != IB_QPT_RAW_PACKET) {
3228 flow_attr = kzalloc(struct_size(flow_attr, flows,
3229 cmd.flow_attr.num_of_specs), GFP_KERNEL);
3234 uflow_res = flow_resources_alloc(cmd.flow_attr.num_of_specs);
3237 goto err_free_flow_attr;
3240 flow_attr->type = kern_flow_attr->type;
3241 flow_attr->priority = kern_flow_attr->priority;
3242 flow_attr->num_of_specs = kern_flow_attr->num_of_specs;
3243 flow_attr->port = kern_flow_attr->port;
3244 flow_attr->flags = kern_flow_attr->flags;
3245 flow_attr->size = sizeof(*flow_attr);
3247 kern_spec = kern_flow_attr->flow_specs;
3248 ib_spec = flow_attr + 1;
3249 for (i = 0; i < flow_attr->num_of_specs &&
3250 cmd.flow_attr.size >= sizeof(*kern_spec) &&
3251 cmd.flow_attr.size >= kern_spec->size;
3253 err = kern_spec_to_ib_spec(
3254 attrs, (struct ib_uverbs_flow_spec *)kern_spec,
3255 ib_spec, uflow_res);
3260 ((union ib_flow_spec *) ib_spec)->size;
3261 cmd.flow_attr.size -= kern_spec->size;
3262 kern_spec = ((void *)kern_spec) + kern_spec->size;
3263 ib_spec += ((union ib_flow_spec *) ib_spec)->size;
3265 if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) {
3266 pr_warn("create flow failed, flow %d: %d bytes left from uverb cmd\n",
3267 i, cmd.flow_attr.size);
3272 flow_id = qp->device->ops.create_flow(qp, flow_attr,
3273 &attrs->driver_udata);
3275 if (IS_ERR(flow_id)) {
3276 err = PTR_ERR(flow_id);
3280 ib_set_flow(uobj, flow_id, qp, qp->device, uflow_res);
3282 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
3283 UVERBS_LOOKUP_READ);
3286 if (cmd.flow_attr.num_of_specs)
3287 kfree(kern_flow_attr);
3288 uobj_finalize_uobj_create(uobj, attrs);
3290 resp.flow_handle = uobj->id;
3291 return uverbs_response(attrs, &resp, sizeof(resp));
3294 ib_uverbs_flow_resources_free(uflow_res);
3298 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
3299 UVERBS_LOOKUP_READ);
3301 uobj_alloc_abort(uobj, attrs);
3303 if (cmd.flow_attr.num_of_specs)
3304 kfree(kern_flow_attr);
3308 static int ib_uverbs_ex_destroy_flow(struct uverbs_attr_bundle *attrs)
3310 struct ib_uverbs_destroy_flow cmd;
3313 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3320 return uobj_perform_destroy(UVERBS_OBJECT_FLOW, cmd.flow_handle, attrs);
3323 static int __uverbs_create_xsrq(struct uverbs_attr_bundle *attrs,
3324 struct ib_uverbs_create_xsrq *cmd,
3325 struct ib_udata *udata)
3327 struct ib_uverbs_create_srq_resp resp = {};
3328 struct ib_usrq_object *obj;
3331 struct ib_srq_init_attr attr;
3333 struct ib_uobject *xrcd_uobj;
3334 struct ib_device *ib_dev;
3336 obj = (struct ib_usrq_object *)uobj_alloc(UVERBS_OBJECT_SRQ, attrs,
3339 return PTR_ERR(obj);
3341 if (cmd->srq_type == IB_SRQT_TM)
3342 attr.ext.tag_matching.max_num_tags = cmd->max_num_tags;
3344 if (cmd->srq_type == IB_SRQT_XRC) {
3345 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->xrcd_handle,
3347 if (IS_ERR(xrcd_uobj)) {
3352 attr.ext.xrc.xrcd = (struct ib_xrcd *)xrcd_uobj->object;
3353 if (!attr.ext.xrc.xrcd) {
3358 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
3359 atomic_inc(&obj->uxrcd->refcnt);
3362 if (ib_srq_has_cq(cmd->srq_type)) {
3363 attr.ext.cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ,
3364 cmd->cq_handle, attrs);
3371 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, attrs);
3377 attr.event_handler = ib_uverbs_srq_event_handler;
3378 attr.srq_type = cmd->srq_type;
3379 attr.attr.max_wr = cmd->max_wr;
3380 attr.attr.max_sge = cmd->max_sge;
3381 attr.attr.srq_limit = cmd->srq_limit;
3383 INIT_LIST_HEAD(&obj->uevent.event_list);
3384 obj->uevent.uobject.user_handle = cmd->user_handle;
3386 srq = ib_create_srq_user(pd, &attr, obj, udata);
3392 obj->uevent.uobject.object = srq;
3393 obj->uevent.uobject.user_handle = cmd->user_handle;
3394 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
3395 if (obj->uevent.event_file)
3396 uverbs_uobject_get(&obj->uevent.event_file->uobj);
3398 if (cmd->srq_type == IB_SRQT_XRC)
3399 resp.srqn = srq->ext.xrc.srq_num;
3401 if (cmd->srq_type == IB_SRQT_XRC)
3402 uobj_put_read(xrcd_uobj);
3404 if (ib_srq_has_cq(cmd->srq_type))
3405 rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject,
3406 UVERBS_LOOKUP_READ);
3408 uobj_put_obj_read(pd);
3409 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
3411 resp.srq_handle = obj->uevent.uobject.id;
3412 resp.max_wr = attr.attr.max_wr;
3413 resp.max_sge = attr.attr.max_sge;
3414 return uverbs_response(attrs, &resp, sizeof(resp));
3417 uobj_put_obj_read(pd);
3419 if (ib_srq_has_cq(cmd->srq_type))
3420 rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject,
3421 UVERBS_LOOKUP_READ);
3424 if (cmd->srq_type == IB_SRQT_XRC) {
3425 atomic_dec(&obj->uxrcd->refcnt);
3426 uobj_put_read(xrcd_uobj);
3430 uobj_alloc_abort(&obj->uevent.uobject, attrs);
3434 static int ib_uverbs_create_srq(struct uverbs_attr_bundle *attrs)
3436 struct ib_uverbs_create_srq cmd;
3437 struct ib_uverbs_create_xsrq xcmd;
3440 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3444 memset(&xcmd, 0, sizeof(xcmd));
3445 xcmd.response = cmd.response;
3446 xcmd.user_handle = cmd.user_handle;
3447 xcmd.srq_type = IB_SRQT_BASIC;
3448 xcmd.pd_handle = cmd.pd_handle;
3449 xcmd.max_wr = cmd.max_wr;
3450 xcmd.max_sge = cmd.max_sge;
3451 xcmd.srq_limit = cmd.srq_limit;
3453 return __uverbs_create_xsrq(attrs, &xcmd, &attrs->driver_udata);
3456 static int ib_uverbs_create_xsrq(struct uverbs_attr_bundle *attrs)
3458 struct ib_uverbs_create_xsrq cmd;
3461 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3465 return __uverbs_create_xsrq(attrs, &cmd, &attrs->driver_udata);
3468 static int ib_uverbs_modify_srq(struct uverbs_attr_bundle *attrs)
3470 struct ib_uverbs_modify_srq cmd;
3472 struct ib_srq_attr attr;
3475 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3479 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3483 attr.max_wr = cmd.max_wr;
3484 attr.srq_limit = cmd.srq_limit;
3486 ret = srq->device->ops.modify_srq(srq, &attr, cmd.attr_mask,
3487 &attrs->driver_udata);
3489 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
3490 UVERBS_LOOKUP_READ);
3495 static int ib_uverbs_query_srq(struct uverbs_attr_bundle *attrs)
3497 struct ib_uverbs_query_srq cmd;
3498 struct ib_uverbs_query_srq_resp resp;
3499 struct ib_srq_attr attr;
3503 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3507 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3511 ret = ib_query_srq(srq, &attr);
3513 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
3514 UVERBS_LOOKUP_READ);
3519 memset(&resp, 0, sizeof resp);
3521 resp.max_wr = attr.max_wr;
3522 resp.max_sge = attr.max_sge;
3523 resp.srq_limit = attr.srq_limit;
3525 return uverbs_response(attrs, &resp, sizeof(resp));
3528 static int ib_uverbs_destroy_srq(struct uverbs_attr_bundle *attrs)
3530 struct ib_uverbs_destroy_srq cmd;
3531 struct ib_uverbs_destroy_srq_resp resp;
3532 struct ib_uobject *uobj;
3533 struct ib_uevent_object *obj;
3536 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3540 uobj = uobj_get_destroy(UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3542 return PTR_ERR(uobj);
3544 obj = container_of(uobj, struct ib_uevent_object, uobject);
3545 memset(&resp, 0, sizeof(resp));
3546 resp.events_reported = obj->events_reported;
3548 uobj_put_destroy(uobj);
3550 return uverbs_response(attrs, &resp, sizeof(resp));
3553 static int ib_uverbs_ex_query_device(struct uverbs_attr_bundle *attrs)
3555 struct ib_uverbs_ex_query_device_resp resp = {};
3556 struct ib_uverbs_ex_query_device cmd;
3557 struct ib_device_attr attr = {0};
3558 struct ib_ucontext *ucontext;
3559 struct ib_device *ib_dev;
3562 ucontext = ib_uverbs_get_ucontext(attrs);
3563 if (IS_ERR(ucontext))
3564 return PTR_ERR(ucontext);
3565 ib_dev = ucontext->device;
3567 err = uverbs_request(attrs, &cmd, sizeof(cmd));
3577 err = ib_dev->ops.query_device(ib_dev, &attr, &attrs->driver_udata);
3581 copy_query_dev_fields(ucontext, &resp.base, &attr);
3583 resp.odp_caps.general_caps = attr.odp_caps.general_caps;
3584 resp.odp_caps.per_transport_caps.rc_odp_caps =
3585 attr.odp_caps.per_transport_caps.rc_odp_caps;
3586 resp.odp_caps.per_transport_caps.uc_odp_caps =
3587 attr.odp_caps.per_transport_caps.uc_odp_caps;
3588 resp.odp_caps.per_transport_caps.ud_odp_caps =
3589 attr.odp_caps.per_transport_caps.ud_odp_caps;
3590 resp.xrc_odp_caps = attr.odp_caps.per_transport_caps.xrc_odp_caps;
3592 resp.timestamp_mask = attr.timestamp_mask;
3593 resp.hca_core_clock = attr.hca_core_clock;
3594 resp.device_cap_flags_ex = attr.device_cap_flags;
3595 resp.rss_caps.supported_qpts = attr.rss_caps.supported_qpts;
3596 resp.rss_caps.max_rwq_indirection_tables =
3597 attr.rss_caps.max_rwq_indirection_tables;
3598 resp.rss_caps.max_rwq_indirection_table_size =
3599 attr.rss_caps.max_rwq_indirection_table_size;
3600 resp.max_wq_type_rq = attr.max_wq_type_rq;
3601 resp.raw_packet_caps = attr.raw_packet_caps;
3602 resp.tm_caps.max_rndv_hdr_size = attr.tm_caps.max_rndv_hdr_size;
3603 resp.tm_caps.max_num_tags = attr.tm_caps.max_num_tags;
3604 resp.tm_caps.max_ops = attr.tm_caps.max_ops;
3605 resp.tm_caps.max_sge = attr.tm_caps.max_sge;
3606 resp.tm_caps.flags = attr.tm_caps.flags;
3607 resp.cq_moderation_caps.max_cq_moderation_count =
3608 attr.cq_caps.max_cq_moderation_count;
3609 resp.cq_moderation_caps.max_cq_moderation_period =
3610 attr.cq_caps.max_cq_moderation_period;
3611 resp.max_dm_size = attr.max_dm_size;
3612 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
3614 return uverbs_response(attrs, &resp, sizeof(resp));
3617 static int ib_uverbs_ex_modify_cq(struct uverbs_attr_bundle *attrs)
3619 struct ib_uverbs_ex_modify_cq cmd;
3623 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3627 if (!cmd.attr_mask || cmd.reserved)
3630 if (cmd.attr_mask > IB_CQ_MODERATE)
3633 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
3637 ret = rdma_set_cq_moderation(cq, cmd.attr.cq_count, cmd.attr.cq_period);
3639 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
3640 UVERBS_LOOKUP_READ);
3645 * Describe the input structs for write(). Some write methods have an input
3646 * only struct, most have an input and output. If the struct has an output then
3647 * the 'response' u64 must be the first field in the request structure.
3649 * If udata is present then both the request and response structs have a
3650 * trailing driver_data flex array. In this case the size of the base struct
3651 * cannot be changed.
3653 #define UAPI_DEF_WRITE_IO(req, resp) \
3654 .write.has_resp = 1 + \
3655 BUILD_BUG_ON_ZERO(offsetof(req, response) != 0) + \
3656 BUILD_BUG_ON_ZERO(sizeof_field(req, response) != \
3658 .write.req_size = sizeof(req), .write.resp_size = sizeof(resp)
3660 #define UAPI_DEF_WRITE_I(req) .write.req_size = sizeof(req)
3662 #define UAPI_DEF_WRITE_UDATA_IO(req, resp) \
3663 UAPI_DEF_WRITE_IO(req, resp), \
3664 .write.has_udata = \
3666 BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \
3668 BUILD_BUG_ON_ZERO(offsetof(resp, driver_data) != \
3671 #define UAPI_DEF_WRITE_UDATA_I(req) \
3672 UAPI_DEF_WRITE_I(req), \
3673 .write.has_udata = \
3674 1 + BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \
3678 * The _EX versions are for use with WRITE_EX and allow the last struct member
3679 * to be specified. Buffers that do not include that member will be rejected.
3681 #define UAPI_DEF_WRITE_IO_EX(req, req_last_member, resp, resp_last_member) \
3682 .write.has_resp = 1, \
3683 .write.req_size = offsetofend(req, req_last_member), \
3684 .write.resp_size = offsetofend(resp, resp_last_member)
3686 #define UAPI_DEF_WRITE_I_EX(req, req_last_member) \
3687 .write.req_size = offsetofend(req, req_last_member)
3689 const struct uapi_definition uverbs_def_write_intf[] = {
3690 DECLARE_UVERBS_OBJECT(
3692 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_AH,
3693 ib_uverbs_create_ah,
3694 UAPI_DEF_WRITE_UDATA_IO(
3695 struct ib_uverbs_create_ah,
3696 struct ib_uverbs_create_ah_resp),
3697 UAPI_DEF_METHOD_NEEDS_FN(create_ah)),
3698 DECLARE_UVERBS_WRITE(
3699 IB_USER_VERBS_CMD_DESTROY_AH,
3700 ib_uverbs_destroy_ah,
3701 UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_ah),
3702 UAPI_DEF_METHOD_NEEDS_FN(destroy_ah))),
3704 DECLARE_UVERBS_OBJECT(
3705 UVERBS_OBJECT_COMP_CHANNEL,
3706 DECLARE_UVERBS_WRITE(
3707 IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
3708 ib_uverbs_create_comp_channel,
3710 struct ib_uverbs_create_comp_channel,
3711 struct ib_uverbs_create_comp_channel_resp))),
3713 DECLARE_UVERBS_OBJECT(
3715 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_CQ,
3716 ib_uverbs_create_cq,
3717 UAPI_DEF_WRITE_UDATA_IO(
3718 struct ib_uverbs_create_cq,
3719 struct ib_uverbs_create_cq_resp),
3720 UAPI_DEF_METHOD_NEEDS_FN(create_cq)),
3721 DECLARE_UVERBS_WRITE(
3722 IB_USER_VERBS_CMD_DESTROY_CQ,
3723 ib_uverbs_destroy_cq,
3724 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_cq,
3725 struct ib_uverbs_destroy_cq_resp),
3726 UAPI_DEF_METHOD_NEEDS_FN(destroy_cq)),
3727 DECLARE_UVERBS_WRITE(
3728 IB_USER_VERBS_CMD_POLL_CQ,
3730 UAPI_DEF_WRITE_IO(struct ib_uverbs_poll_cq,
3731 struct ib_uverbs_poll_cq_resp),
3732 UAPI_DEF_METHOD_NEEDS_FN(poll_cq)),
3733 DECLARE_UVERBS_WRITE(
3734 IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
3735 ib_uverbs_req_notify_cq,
3736 UAPI_DEF_WRITE_I(struct ib_uverbs_req_notify_cq),
3737 UAPI_DEF_METHOD_NEEDS_FN(req_notify_cq)),
3738 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_RESIZE_CQ,
3739 ib_uverbs_resize_cq,
3740 UAPI_DEF_WRITE_UDATA_IO(
3741 struct ib_uverbs_resize_cq,
3742 struct ib_uverbs_resize_cq_resp),
3743 UAPI_DEF_METHOD_NEEDS_FN(resize_cq)),
3744 DECLARE_UVERBS_WRITE_EX(
3745 IB_USER_VERBS_EX_CMD_CREATE_CQ,
3746 ib_uverbs_ex_create_cq,
3747 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_cq,
3749 struct ib_uverbs_ex_create_cq_resp,
3751 UAPI_DEF_METHOD_NEEDS_FN(create_cq)),
3752 DECLARE_UVERBS_WRITE_EX(
3753 IB_USER_VERBS_EX_CMD_MODIFY_CQ,
3754 ib_uverbs_ex_modify_cq,
3755 UAPI_DEF_WRITE_I(struct ib_uverbs_ex_modify_cq),
3756 UAPI_DEF_METHOD_NEEDS_FN(create_cq))),
3758 DECLARE_UVERBS_OBJECT(
3759 UVERBS_OBJECT_DEVICE,
3760 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_GET_CONTEXT,
3761 ib_uverbs_get_context,
3762 UAPI_DEF_WRITE_UDATA_IO(
3763 struct ib_uverbs_get_context,
3764 struct ib_uverbs_get_context_resp)),
3765 DECLARE_UVERBS_WRITE(
3766 IB_USER_VERBS_CMD_QUERY_DEVICE,
3767 ib_uverbs_query_device,
3768 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_device,
3769 struct ib_uverbs_query_device_resp)),
3770 DECLARE_UVERBS_WRITE(
3771 IB_USER_VERBS_CMD_QUERY_PORT,
3772 ib_uverbs_query_port,
3773 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_port,
3774 struct ib_uverbs_query_port_resp),
3775 UAPI_DEF_METHOD_NEEDS_FN(query_port)),
3776 DECLARE_UVERBS_WRITE_EX(
3777 IB_USER_VERBS_EX_CMD_QUERY_DEVICE,
3778 ib_uverbs_ex_query_device,
3779 UAPI_DEF_WRITE_IO_EX(
3780 struct ib_uverbs_ex_query_device,
3782 struct ib_uverbs_ex_query_device_resp,
3784 UAPI_DEF_METHOD_NEEDS_FN(query_device)),
3785 UAPI_DEF_OBJ_NEEDS_FN(alloc_ucontext),
3786 UAPI_DEF_OBJ_NEEDS_FN(dealloc_ucontext)),
3788 DECLARE_UVERBS_OBJECT(
3790 DECLARE_UVERBS_WRITE_EX(
3791 IB_USER_VERBS_EX_CMD_CREATE_FLOW,
3792 ib_uverbs_ex_create_flow,
3793 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_create_flow,
3795 struct ib_uverbs_create_flow_resp,
3797 UAPI_DEF_METHOD_NEEDS_FN(create_flow)),
3798 DECLARE_UVERBS_WRITE_EX(
3799 IB_USER_VERBS_EX_CMD_DESTROY_FLOW,
3800 ib_uverbs_ex_destroy_flow,
3801 UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_flow),
3802 UAPI_DEF_METHOD_NEEDS_FN(destroy_flow))),
3804 DECLARE_UVERBS_OBJECT(
3806 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_DEREG_MR,
3808 UAPI_DEF_WRITE_I(struct ib_uverbs_dereg_mr),
3809 UAPI_DEF_METHOD_NEEDS_FN(dereg_mr)),
3810 DECLARE_UVERBS_WRITE(
3811 IB_USER_VERBS_CMD_REG_MR,
3813 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_reg_mr,
3814 struct ib_uverbs_reg_mr_resp),
3815 UAPI_DEF_METHOD_NEEDS_FN(reg_user_mr)),
3816 DECLARE_UVERBS_WRITE(
3817 IB_USER_VERBS_CMD_REREG_MR,
3819 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_rereg_mr,
3820 struct ib_uverbs_rereg_mr_resp),
3821 UAPI_DEF_METHOD_NEEDS_FN(rereg_user_mr))),
3823 DECLARE_UVERBS_OBJECT(
3825 DECLARE_UVERBS_WRITE(
3826 IB_USER_VERBS_CMD_ALLOC_MW,
3828 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_mw,
3829 struct ib_uverbs_alloc_mw_resp),
3830 UAPI_DEF_METHOD_NEEDS_FN(alloc_mw)),
3831 DECLARE_UVERBS_WRITE(
3832 IB_USER_VERBS_CMD_DEALLOC_MW,
3833 ib_uverbs_dealloc_mw,
3834 UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_mw),
3835 UAPI_DEF_METHOD_NEEDS_FN(dealloc_mw))),
3837 DECLARE_UVERBS_OBJECT(
3839 DECLARE_UVERBS_WRITE(
3840 IB_USER_VERBS_CMD_ALLOC_PD,
3842 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_pd,
3843 struct ib_uverbs_alloc_pd_resp),
3844 UAPI_DEF_METHOD_NEEDS_FN(alloc_pd)),
3845 DECLARE_UVERBS_WRITE(
3846 IB_USER_VERBS_CMD_DEALLOC_PD,
3847 ib_uverbs_dealloc_pd,
3848 UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_pd),
3849 UAPI_DEF_METHOD_NEEDS_FN(dealloc_pd))),
3851 DECLARE_UVERBS_OBJECT(
3853 DECLARE_UVERBS_WRITE(
3854 IB_USER_VERBS_CMD_ATTACH_MCAST,
3855 ib_uverbs_attach_mcast,
3856 UAPI_DEF_WRITE_I(struct ib_uverbs_attach_mcast),
3857 UAPI_DEF_METHOD_NEEDS_FN(attach_mcast),
3858 UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)),
3859 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_QP,
3860 ib_uverbs_create_qp,
3861 UAPI_DEF_WRITE_UDATA_IO(
3862 struct ib_uverbs_create_qp,
3863 struct ib_uverbs_create_qp_resp),
3864 UAPI_DEF_METHOD_NEEDS_FN(create_qp)),
3865 DECLARE_UVERBS_WRITE(
3866 IB_USER_VERBS_CMD_DESTROY_QP,
3867 ib_uverbs_destroy_qp,
3868 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_qp,
3869 struct ib_uverbs_destroy_qp_resp),
3870 UAPI_DEF_METHOD_NEEDS_FN(destroy_qp)),
3871 DECLARE_UVERBS_WRITE(
3872 IB_USER_VERBS_CMD_DETACH_MCAST,
3873 ib_uverbs_detach_mcast,
3874 UAPI_DEF_WRITE_I(struct ib_uverbs_detach_mcast),
3875 UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)),
3876 DECLARE_UVERBS_WRITE(
3877 IB_USER_VERBS_CMD_MODIFY_QP,
3878 ib_uverbs_modify_qp,
3879 UAPI_DEF_WRITE_I(struct ib_uverbs_modify_qp),
3880 UAPI_DEF_METHOD_NEEDS_FN(modify_qp)),
3881 DECLARE_UVERBS_WRITE(
3882 IB_USER_VERBS_CMD_POST_RECV,
3883 ib_uverbs_post_recv,
3884 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_recv,
3885 struct ib_uverbs_post_recv_resp),
3886 UAPI_DEF_METHOD_NEEDS_FN(post_recv)),
3887 DECLARE_UVERBS_WRITE(
3888 IB_USER_VERBS_CMD_POST_SEND,
3889 ib_uverbs_post_send,
3890 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_send,
3891 struct ib_uverbs_post_send_resp),
3892 UAPI_DEF_METHOD_NEEDS_FN(post_send)),
3893 DECLARE_UVERBS_WRITE(
3894 IB_USER_VERBS_CMD_QUERY_QP,
3896 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_qp,
3897 struct ib_uverbs_query_qp_resp),
3898 UAPI_DEF_METHOD_NEEDS_FN(query_qp)),
3899 DECLARE_UVERBS_WRITE_EX(
3900 IB_USER_VERBS_EX_CMD_CREATE_QP,
3901 ib_uverbs_ex_create_qp,
3902 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_qp,
3904 struct ib_uverbs_ex_create_qp_resp,
3906 UAPI_DEF_METHOD_NEEDS_FN(create_qp)),
3907 DECLARE_UVERBS_WRITE_EX(
3908 IB_USER_VERBS_EX_CMD_MODIFY_QP,
3909 ib_uverbs_ex_modify_qp,
3910 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_modify_qp,
3912 struct ib_uverbs_ex_modify_qp_resp,
3914 UAPI_DEF_METHOD_NEEDS_FN(modify_qp))),
3916 DECLARE_UVERBS_OBJECT(
3917 UVERBS_OBJECT_RWQ_IND_TBL,
3918 DECLARE_UVERBS_WRITE_EX(
3919 IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL,
3920 ib_uverbs_ex_create_rwq_ind_table,
3921 UAPI_DEF_WRITE_IO_EX(
3922 struct ib_uverbs_ex_create_rwq_ind_table,
3924 struct ib_uverbs_ex_create_rwq_ind_table_resp,
3926 UAPI_DEF_METHOD_NEEDS_FN(create_rwq_ind_table)),
3927 DECLARE_UVERBS_WRITE_EX(
3928 IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL,
3929 ib_uverbs_ex_destroy_rwq_ind_table,
3931 struct ib_uverbs_ex_destroy_rwq_ind_table),
3932 UAPI_DEF_METHOD_NEEDS_FN(destroy_rwq_ind_table))),
3934 DECLARE_UVERBS_OBJECT(
3936 DECLARE_UVERBS_WRITE_EX(
3937 IB_USER_VERBS_EX_CMD_CREATE_WQ,
3938 ib_uverbs_ex_create_wq,
3939 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_wq,
3941 struct ib_uverbs_ex_create_wq_resp,
3943 UAPI_DEF_METHOD_NEEDS_FN(create_wq)),
3944 DECLARE_UVERBS_WRITE_EX(
3945 IB_USER_VERBS_EX_CMD_DESTROY_WQ,
3946 ib_uverbs_ex_destroy_wq,
3947 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_destroy_wq,
3949 struct ib_uverbs_ex_destroy_wq_resp,
3951 UAPI_DEF_METHOD_NEEDS_FN(destroy_wq)),
3952 DECLARE_UVERBS_WRITE_EX(
3953 IB_USER_VERBS_EX_CMD_MODIFY_WQ,
3954 ib_uverbs_ex_modify_wq,
3955 UAPI_DEF_WRITE_I_EX(struct ib_uverbs_ex_modify_wq,
3957 UAPI_DEF_METHOD_NEEDS_FN(modify_wq))),
3959 DECLARE_UVERBS_OBJECT(
3961 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_SRQ,
3962 ib_uverbs_create_srq,
3963 UAPI_DEF_WRITE_UDATA_IO(
3964 struct ib_uverbs_create_srq,
3965 struct ib_uverbs_create_srq_resp),
3966 UAPI_DEF_METHOD_NEEDS_FN(create_srq)),
3967 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_XSRQ,
3968 ib_uverbs_create_xsrq,
3969 UAPI_DEF_WRITE_UDATA_IO(
3970 struct ib_uverbs_create_xsrq,
3971 struct ib_uverbs_create_srq_resp),
3972 UAPI_DEF_METHOD_NEEDS_FN(create_srq)),
3973 DECLARE_UVERBS_WRITE(
3974 IB_USER_VERBS_CMD_DESTROY_SRQ,
3975 ib_uverbs_destroy_srq,
3976 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_srq,
3977 struct ib_uverbs_destroy_srq_resp),
3978 UAPI_DEF_METHOD_NEEDS_FN(destroy_srq)),
3979 DECLARE_UVERBS_WRITE(
3980 IB_USER_VERBS_CMD_MODIFY_SRQ,
3981 ib_uverbs_modify_srq,
3982 UAPI_DEF_WRITE_UDATA_I(struct ib_uverbs_modify_srq),
3983 UAPI_DEF_METHOD_NEEDS_FN(modify_srq)),
3984 DECLARE_UVERBS_WRITE(
3985 IB_USER_VERBS_CMD_POST_SRQ_RECV,
3986 ib_uverbs_post_srq_recv,
3987 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_srq_recv,
3988 struct ib_uverbs_post_srq_recv_resp),
3989 UAPI_DEF_METHOD_NEEDS_FN(post_srq_recv)),
3990 DECLARE_UVERBS_WRITE(
3991 IB_USER_VERBS_CMD_QUERY_SRQ,
3992 ib_uverbs_query_srq,
3993 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_srq,
3994 struct ib_uverbs_query_srq_resp),
3995 UAPI_DEF_METHOD_NEEDS_FN(query_srq))),
3997 DECLARE_UVERBS_OBJECT(
3999 DECLARE_UVERBS_WRITE(
4000 IB_USER_VERBS_CMD_CLOSE_XRCD,
4001 ib_uverbs_close_xrcd,
4002 UAPI_DEF_WRITE_I(struct ib_uverbs_close_xrcd),
4003 UAPI_DEF_METHOD_NEEDS_FN(dealloc_xrcd)),
4004 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_QP,
4006 UAPI_DEF_WRITE_UDATA_IO(
4007 struct ib_uverbs_open_qp,
4008 struct ib_uverbs_create_qp_resp)),
4009 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_XRCD,
4010 ib_uverbs_open_xrcd,
4011 UAPI_DEF_WRITE_UDATA_IO(
4012 struct ib_uverbs_open_xrcd,
4013 struct ib_uverbs_open_xrcd_resp),
4014 UAPI_DEF_METHOD_NEEDS_FN(alloc_xrcd))),