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36#include <linux/file.h>
37#include <linux/fs.h>
38#include <linux/slab.h>
39#include <linux/sched.h>
40
41#include <linux/uaccess.h>
42
43#include <rdma/uverbs_types.h>
44#include <rdma/uverbs_std_types.h>
45#include "rdma_core.h"
46
47#include "uverbs.h"
48#include "core_priv.h"
49
50
51
52
53
54
55
56
57
58static int uverbs_response(struct uverbs_attr_bundle *attrs, const void *resp,
59 size_t resp_len)
60{
61 int ret;
62
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);
66
67 if (copy_to_user(attrs->ucore.outbuf, resp,
68 min(attrs->ucore.outlen, resp_len)))
69 return -EFAULT;
70
71 if (resp_len < attrs->ucore.outlen) {
72
73
74
75
76 ret = clear_user(attrs->ucore.outbuf + resp_len,
77 attrs->ucore.outlen - resp_len);
78 if (ret)
79 return -EFAULT;
80 }
81
82 return 0;
83}
84
85
86
87
88
89
90
91static int uverbs_request(struct uverbs_attr_bundle *attrs, void *req,
92 size_t req_len)
93{
94 if (copy_from_user(req, attrs->ucore.inbuf,
95 min(attrs->ucore.inlen, req_len)))
96 return -EFAULT;
97
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))
104 return -EOPNOTSUPP;
105 }
106 return 0;
107}
108
109
110
111
112
113
114
115static u32 uverbs_response_length(struct uverbs_attr_bundle *attrs,
116 size_t resp_len)
117{
118 return min_t(size_t, attrs->ucore.outlen, resp_len);
119}
120
121
122
123
124
125struct uverbs_req_iter {
126 const void __user *cur;
127 const void __user *end;
128};
129
130static int uverbs_request_start(struct uverbs_attr_bundle *attrs,
131 struct uverbs_req_iter *iter,
132 void *req,
133 size_t req_len)
134{
135 if (attrs->ucore.inlen < req_len)
136 return -ENOSPC;
137
138 if (copy_from_user(req, attrs->ucore.inbuf, req_len))
139 return -EFAULT;
140
141 iter->cur = attrs->ucore.inbuf + req_len;
142 iter->end = attrs->ucore.inbuf + attrs->ucore.inlen;
143 return 0;
144}
145
146static int uverbs_request_next(struct uverbs_req_iter *iter, void *val,
147 size_t len)
148{
149 if (iter->cur + len > iter->end)
150 return -ENOSPC;
151
152 if (copy_from_user(val, iter->cur, len))
153 return -EFAULT;
154
155 iter->cur += len;
156 return 0;
157}
158
159static const void __user *uverbs_request_next_ptr(struct uverbs_req_iter *iter,
160 size_t len)
161{
162 const void __user *res = iter->cur;
163
164 if (iter->cur + len > iter->end)
165 return (void __force __user *)ERR_PTR(-ENOSPC);
166 iter->cur += len;
167 return res;
168}
169
170static int uverbs_request_finish(struct uverbs_req_iter *iter)
171{
172 if (!ib_is_buffer_cleared(iter->cur, iter->end - iter->cur))
173 return -EOPNOTSUPP;
174 return 0;
175}
176
177
178
179
180
181
182struct ib_udata *uverbs_get_cleared_udata(struct uverbs_attr_bundle *attrs)
183{
184 attrs->driver_udata = (struct ib_udata){};
185 return &attrs->driver_udata;
186}
187
188static struct ib_uverbs_completion_event_file *
189_ib_uverbs_lookup_comp_file(s32 fd, struct uverbs_attr_bundle *attrs)
190{
191 struct ib_uobject *uobj = ufd_get_read(UVERBS_OBJECT_COMP_CHANNEL,
192 fd, attrs);
193
194 if (IS_ERR(uobj))
195 return (void *)uobj;
196
197 uverbs_uobject_get(uobj);
198 uobj_put_read(uobj);
199
200 return container_of(uobj, struct ib_uverbs_completion_event_file,
201 uobj);
202}
203#define ib_uverbs_lookup_comp_file(_fd, _ufile) \
204 _ib_uverbs_lookup_comp_file((_fd)*typecheck(s32, _fd), _ufile)
205
206int ib_alloc_ucontext(struct uverbs_attr_bundle *attrs)
207{
208 struct ib_uverbs_file *ufile = attrs->ufile;
209 struct ib_ucontext *ucontext;
210 struct ib_device *ib_dev;
211
212 ib_dev = srcu_dereference(ufile->device->ib_dev,
213 &ufile->device->disassociate_srcu);
214 if (!ib_dev)
215 return -EIO;
216
217 ucontext = rdma_zalloc_drv_obj(ib_dev, ib_ucontext);
218 if (!ucontext)
219 return -ENOMEM;
220
221 ucontext->device = ib_dev;
222 ucontext->ufile = ufile;
223 xa_init_flags(&ucontext->mmap_xa, XA_FLAGS_ALLOC);
224
225 rdma_restrack_new(&ucontext->res, RDMA_RESTRACK_CTX);
226 rdma_restrack_set_name(&ucontext->res, NULL);
227 attrs->context = ucontext;
228 return 0;
229}
230
231int ib_init_ucontext(struct uverbs_attr_bundle *attrs)
232{
233 struct ib_ucontext *ucontext = attrs->context;
234 struct ib_uverbs_file *file = attrs->ufile;
235 int ret;
236
237 if (!down_read_trylock(&file->hw_destroy_rwsem))
238 return -EIO;
239 mutex_lock(&file->ucontext_lock);
240 if (file->ucontext) {
241 ret = -EINVAL;
242 goto err;
243 }
244
245 ret = ib_rdmacg_try_charge(&ucontext->cg_obj, ucontext->device,
246 RDMACG_RESOURCE_HCA_HANDLE);
247 if (ret)
248 goto err;
249
250 ret = ucontext->device->ops.alloc_ucontext(ucontext,
251 &attrs->driver_udata);
252 if (ret)
253 goto err_uncharge;
254
255 rdma_restrack_add(&ucontext->res);
256
257
258
259
260
261 smp_store_release(&file->ucontext, ucontext);
262
263 mutex_unlock(&file->ucontext_lock);
264 up_read(&file->hw_destroy_rwsem);
265 return 0;
266
267err_uncharge:
268 ib_rdmacg_uncharge(&ucontext->cg_obj, ucontext->device,
269 RDMACG_RESOURCE_HCA_HANDLE);
270err:
271 mutex_unlock(&file->ucontext_lock);
272 up_read(&file->hw_destroy_rwsem);
273 return ret;
274}
275
276static int ib_uverbs_get_context(struct uverbs_attr_bundle *attrs)
277{
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;
282 int ret;
283
284 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
285 if (ret)
286 return ret;
287
288 ret = ib_alloc_ucontext(attrs);
289 if (ret)
290 return ret;
291
292 uobj = uobj_alloc(UVERBS_OBJECT_ASYNC_EVENT, attrs, &ib_dev);
293 if (IS_ERR(uobj)) {
294 ret = PTR_ERR(uobj);
295 goto err_ucontext;
296 }
297
298 resp = (struct ib_uverbs_get_context_resp){
299 .num_comp_vectors = attrs->ufile->device->num_comp_vectors,
300 .async_fd = uobj->id,
301 };
302 ret = uverbs_response(attrs, &resp, sizeof(resp));
303 if (ret)
304 goto err_uobj;
305
306 ret = ib_init_ucontext(attrs);
307 if (ret)
308 goto err_uobj;
309
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);
313 return 0;
314
315err_uobj:
316 rdma_alloc_abort_uobject(uobj, attrs, false);
317err_ucontext:
318 rdma_restrack_put(&attrs->context->res);
319 kfree(attrs->context);
320 attrs->context = NULL;
321 return ret;
322}
323
324static void copy_query_dev_fields(struct ib_ucontext *ucontext,
325 struct ib_uverbs_query_device_resp *resp,
326 struct ib_device_attr *attr)
327{
328 struct ib_device *ib_dev = ucontext->device;
329
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 = min_t(u32, ib_dev->phys_port_cnt, U8_MAX);
368}
369
370static int ib_uverbs_query_device(struct uverbs_attr_bundle *attrs)
371{
372 struct ib_uverbs_query_device cmd;
373 struct ib_uverbs_query_device_resp resp;
374 struct ib_ucontext *ucontext;
375 int ret;
376
377 ucontext = ib_uverbs_get_ucontext(attrs);
378 if (IS_ERR(ucontext))
379 return PTR_ERR(ucontext);
380
381 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
382 if (ret)
383 return ret;
384
385 memset(&resp, 0, sizeof resp);
386 copy_query_dev_fields(ucontext, &resp, &ucontext->device->attrs);
387
388 return uverbs_response(attrs, &resp, sizeof(resp));
389}
390
391static int ib_uverbs_query_port(struct uverbs_attr_bundle *attrs)
392{
393 struct ib_uverbs_query_port cmd;
394 struct ib_uverbs_query_port_resp resp;
395 struct ib_port_attr attr;
396 int ret;
397 struct ib_ucontext *ucontext;
398 struct ib_device *ib_dev;
399
400 ucontext = ib_uverbs_get_ucontext(attrs);
401 if (IS_ERR(ucontext))
402 return PTR_ERR(ucontext);
403 ib_dev = ucontext->device;
404
405 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
406 if (ret)
407 return ret;
408
409 ret = ib_query_port(ib_dev, cmd.port_num, &attr);
410 if (ret)
411 return ret;
412
413 memset(&resp, 0, sizeof resp);
414 copy_port_attr_to_resp(&attr, &resp, ib_dev, cmd.port_num);
415
416 return uverbs_response(attrs, &resp, sizeof(resp));
417}
418
419static int ib_uverbs_alloc_pd(struct uverbs_attr_bundle *attrs)
420{
421 struct ib_uverbs_alloc_pd_resp resp = {};
422 struct ib_uverbs_alloc_pd cmd;
423 struct ib_uobject *uobj;
424 struct ib_pd *pd;
425 int ret;
426 struct ib_device *ib_dev;
427
428 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
429 if (ret)
430 return ret;
431
432 uobj = uobj_alloc(UVERBS_OBJECT_PD, attrs, &ib_dev);
433 if (IS_ERR(uobj))
434 return PTR_ERR(uobj);
435
436 pd = rdma_zalloc_drv_obj(ib_dev, ib_pd);
437 if (!pd) {
438 ret = -ENOMEM;
439 goto err;
440 }
441
442 pd->device = ib_dev;
443 pd->uobject = uobj;
444 atomic_set(&pd->usecnt, 0);
445
446 rdma_restrack_new(&pd->res, RDMA_RESTRACK_PD);
447 rdma_restrack_set_name(&pd->res, NULL);
448
449 ret = ib_dev->ops.alloc_pd(pd, &attrs->driver_udata);
450 if (ret)
451 goto err_alloc;
452 rdma_restrack_add(&pd->res);
453
454 uobj->object = pd;
455 uobj_finalize_uobj_create(uobj, attrs);
456
457 resp.pd_handle = uobj->id;
458 return uverbs_response(attrs, &resp, sizeof(resp));
459
460err_alloc:
461 rdma_restrack_put(&pd->res);
462 kfree(pd);
463err:
464 uobj_alloc_abort(uobj, attrs);
465 return ret;
466}
467
468static int ib_uverbs_dealloc_pd(struct uverbs_attr_bundle *attrs)
469{
470 struct ib_uverbs_dealloc_pd cmd;
471 int ret;
472
473 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
474 if (ret)
475 return ret;
476
477 return uobj_perform_destroy(UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
478}
479
480struct xrcd_table_entry {
481 struct rb_node node;
482 struct ib_xrcd *xrcd;
483 struct inode *inode;
484};
485
486static int xrcd_table_insert(struct ib_uverbs_device *dev,
487 struct inode *inode,
488 struct ib_xrcd *xrcd)
489{
490 struct xrcd_table_entry *entry, *scan;
491 struct rb_node **p = &dev->xrcd_tree.rb_node;
492 struct rb_node *parent = NULL;
493
494 entry = kmalloc(sizeof *entry, GFP_KERNEL);
495 if (!entry)
496 return -ENOMEM;
497
498 entry->xrcd = xrcd;
499 entry->inode = inode;
500
501 while (*p) {
502 parent = *p;
503 scan = rb_entry(parent, struct xrcd_table_entry, node);
504
505 if (inode < scan->inode) {
506 p = &(*p)->rb_left;
507 } else if (inode > scan->inode) {
508 p = &(*p)->rb_right;
509 } else {
510 kfree(entry);
511 return -EEXIST;
512 }
513 }
514
515 rb_link_node(&entry->node, parent, p);
516 rb_insert_color(&entry->node, &dev->xrcd_tree);
517 igrab(inode);
518 return 0;
519}
520
521static struct xrcd_table_entry *xrcd_table_search(struct ib_uverbs_device *dev,
522 struct inode *inode)
523{
524 struct xrcd_table_entry *entry;
525 struct rb_node *p = dev->xrcd_tree.rb_node;
526
527 while (p) {
528 entry = rb_entry(p, struct xrcd_table_entry, node);
529
530 if (inode < entry->inode)
531 p = p->rb_left;
532 else if (inode > entry->inode)
533 p = p->rb_right;
534 else
535 return entry;
536 }
537
538 return NULL;
539}
540
541static struct ib_xrcd *find_xrcd(struct ib_uverbs_device *dev, struct inode *inode)
542{
543 struct xrcd_table_entry *entry;
544
545 entry = xrcd_table_search(dev, inode);
546 if (!entry)
547 return NULL;
548
549 return entry->xrcd;
550}
551
552static void xrcd_table_delete(struct ib_uverbs_device *dev,
553 struct inode *inode)
554{
555 struct xrcd_table_entry *entry;
556
557 entry = xrcd_table_search(dev, inode);
558 if (entry) {
559 iput(inode);
560 rb_erase(&entry->node, &dev->xrcd_tree);
561 kfree(entry);
562 }
563}
564
565static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs)
566{
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;
573 int new_xrcd = 0;
574 struct ib_device *ib_dev;
575 struct fd f = {};
576 int ret;
577
578 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
579 if (ret)
580 return ret;
581
582 mutex_lock(&ibudev->xrcd_tree_mutex);
583
584 if (cmd.fd != -1) {
585
586 f = fdget(cmd.fd);
587 if (!f.file) {
588 ret = -EBADF;
589 goto err_tree_mutex_unlock;
590 }
591
592 inode = file_inode(f.file);
593 xrcd = find_xrcd(ibudev, inode);
594 if (!xrcd && !(cmd.oflags & O_CREAT)) {
595
596 ret = -EAGAIN;
597 goto err_tree_mutex_unlock;
598 }
599
600 if (xrcd && cmd.oflags & O_EXCL) {
601 ret = -EINVAL;
602 goto err_tree_mutex_unlock;
603 }
604 }
605
606 obj = (struct ib_uxrcd_object *)uobj_alloc(UVERBS_OBJECT_XRCD, attrs,
607 &ib_dev);
608 if (IS_ERR(obj)) {
609 ret = PTR_ERR(obj);
610 goto err_tree_mutex_unlock;
611 }
612
613 if (!xrcd) {
614 xrcd = ib_alloc_xrcd_user(ib_dev, inode, &attrs->driver_udata);
615 if (IS_ERR(xrcd)) {
616 ret = PTR_ERR(xrcd);
617 goto err;
618 }
619 new_xrcd = 1;
620 }
621
622 atomic_set(&obj->refcnt, 0);
623 obj->uobject.object = xrcd;
624
625 if (inode) {
626 if (new_xrcd) {
627
628 ret = xrcd_table_insert(ibudev, inode, xrcd);
629 if (ret)
630 goto err_dealloc_xrcd;
631 }
632 atomic_inc(&xrcd->usecnt);
633 }
634
635 if (f.file)
636 fdput(f);
637
638 mutex_unlock(&ibudev->xrcd_tree_mutex);
639 uobj_finalize_uobj_create(&obj->uobject, attrs);
640
641 resp.xrcd_handle = obj->uobject.id;
642 return uverbs_response(attrs, &resp, sizeof(resp));
643
644err_dealloc_xrcd:
645 ib_dealloc_xrcd_user(xrcd, uverbs_get_cleared_udata(attrs));
646
647err:
648 uobj_alloc_abort(&obj->uobject, attrs);
649
650err_tree_mutex_unlock:
651 if (f.file)
652 fdput(f);
653
654 mutex_unlock(&ibudev->xrcd_tree_mutex);
655
656 return ret;
657}
658
659static int ib_uverbs_close_xrcd(struct uverbs_attr_bundle *attrs)
660{
661 struct ib_uverbs_close_xrcd cmd;
662 int ret;
663
664 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
665 if (ret)
666 return ret;
667
668 return uobj_perform_destroy(UVERBS_OBJECT_XRCD, cmd.xrcd_handle, attrs);
669}
670
671int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, struct ib_xrcd *xrcd,
672 enum rdma_remove_reason why,
673 struct uverbs_attr_bundle *attrs)
674{
675 struct inode *inode;
676 int ret;
677 struct ib_uverbs_device *dev = attrs->ufile->device;
678
679 inode = xrcd->inode;
680 if (inode && !atomic_dec_and_test(&xrcd->usecnt))
681 return 0;
682
683 ret = ib_dealloc_xrcd_user(xrcd, &attrs->driver_udata);
684 if (ret) {
685 atomic_inc(&xrcd->usecnt);
686 return ret;
687 }
688
689 if (inode)
690 xrcd_table_delete(dev, inode);
691
692 return 0;
693}
694
695static int ib_uverbs_reg_mr(struct uverbs_attr_bundle *attrs)
696{
697 struct ib_uverbs_reg_mr_resp resp = {};
698 struct ib_uverbs_reg_mr cmd;
699 struct ib_uobject *uobj;
700 struct ib_pd *pd;
701 struct ib_mr *mr;
702 int ret;
703 struct ib_device *ib_dev;
704
705 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
706 if (ret)
707 return ret;
708
709 if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK))
710 return -EINVAL;
711
712 uobj = uobj_alloc(UVERBS_OBJECT_MR, attrs, &ib_dev);
713 if (IS_ERR(uobj))
714 return PTR_ERR(uobj);
715
716 ret = ib_check_mr_access(ib_dev, cmd.access_flags);
717 if (ret)
718 goto err_free;
719
720 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
721 if (!pd) {
722 ret = -EINVAL;
723 goto err_free;
724 }
725
726 mr = pd->device->ops.reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va,
727 cmd.access_flags,
728 &attrs->driver_udata);
729 if (IS_ERR(mr)) {
730 ret = PTR_ERR(mr);
731 goto err_put;
732 }
733
734 mr->device = pd->device;
735 mr->pd = pd;
736 mr->type = IB_MR_TYPE_USER;
737 mr->dm = NULL;
738 mr->sig_attrs = NULL;
739 mr->uobject = uobj;
740 atomic_inc(&pd->usecnt);
741 mr->iova = cmd.hca_va;
742
743 rdma_restrack_new(&mr->res, RDMA_RESTRACK_MR);
744 rdma_restrack_set_name(&mr->res, NULL);
745 rdma_restrack_add(&mr->res);
746
747 uobj->object = mr;
748 uobj_put_obj_read(pd);
749 uobj_finalize_uobj_create(uobj, attrs);
750
751 resp.lkey = mr->lkey;
752 resp.rkey = mr->rkey;
753 resp.mr_handle = uobj->id;
754 return uverbs_response(attrs, &resp, sizeof(resp));
755
756err_put:
757 uobj_put_obj_read(pd);
758err_free:
759 uobj_alloc_abort(uobj, attrs);
760 return ret;
761}
762
763static int ib_uverbs_rereg_mr(struct uverbs_attr_bundle *attrs)
764{
765 struct ib_uverbs_rereg_mr cmd;
766 struct ib_uverbs_rereg_mr_resp resp;
767 struct ib_mr *mr;
768 int ret;
769 struct ib_uobject *uobj;
770 struct ib_uobject *new_uobj;
771 struct ib_device *ib_dev;
772 struct ib_pd *orig_pd;
773 struct ib_pd *new_pd;
774 struct ib_mr *new_mr;
775
776 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
777 if (ret)
778 return ret;
779
780 if (!cmd.flags)
781 return -EINVAL;
782
783 if (cmd.flags & ~IB_MR_REREG_SUPPORTED)
784 return -EOPNOTSUPP;
785
786 if ((cmd.flags & IB_MR_REREG_TRANS) &&
787 (cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK))
788 return -EINVAL;
789
790 uobj = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle, attrs);
791 if (IS_ERR(uobj))
792 return PTR_ERR(uobj);
793
794 mr = uobj->object;
795
796 if (mr->dm) {
797 ret = -EINVAL;
798 goto put_uobjs;
799 }
800
801 if (cmd.flags & IB_MR_REREG_ACCESS) {
802 ret = ib_check_mr_access(mr->device, cmd.access_flags);
803 if (ret)
804 goto put_uobjs;
805 }
806
807 orig_pd = mr->pd;
808 if (cmd.flags & IB_MR_REREG_PD) {
809 new_pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle,
810 attrs);
811 if (!new_pd) {
812 ret = -EINVAL;
813 goto put_uobjs;
814 }
815 } else {
816 new_pd = mr->pd;
817 }
818
819
820
821
822
823 new_uobj = uobj_alloc(UVERBS_OBJECT_MR, attrs, &ib_dev);
824 if (IS_ERR(new_uobj)) {
825 ret = PTR_ERR(new_uobj);
826 goto put_uobj_pd;
827 }
828
829 new_mr = ib_dev->ops.rereg_user_mr(mr, cmd.flags, cmd.start, cmd.length,
830 cmd.hca_va, cmd.access_flags, new_pd,
831 &attrs->driver_udata);
832 if (IS_ERR(new_mr)) {
833 ret = PTR_ERR(new_mr);
834 goto put_new_uobj;
835 }
836 if (new_mr) {
837 new_mr->device = new_pd->device;
838 new_mr->pd = new_pd;
839 new_mr->type = IB_MR_TYPE_USER;
840 new_mr->dm = NULL;
841 new_mr->sig_attrs = NULL;
842 new_mr->uobject = uobj;
843 atomic_inc(&new_pd->usecnt);
844 new_mr->iova = cmd.hca_va;
845 new_uobj->object = new_mr;
846
847 rdma_restrack_new(&new_mr->res, RDMA_RESTRACK_MR);
848 rdma_restrack_set_name(&new_mr->res, NULL);
849 rdma_restrack_add(&new_mr->res);
850
851
852
853
854
855 rdma_assign_uobject(uobj, new_uobj, attrs);
856 rdma_alloc_commit_uobject(new_uobj, attrs);
857 uobj_put_destroy(uobj);
858 new_uobj = NULL;
859 uobj = NULL;
860 mr = new_mr;
861 } else {
862 if (cmd.flags & IB_MR_REREG_PD) {
863 atomic_dec(&orig_pd->usecnt);
864 mr->pd = new_pd;
865 atomic_inc(&new_pd->usecnt);
866 }
867 if (cmd.flags & IB_MR_REREG_TRANS)
868 mr->iova = cmd.hca_va;
869 }
870
871 memset(&resp, 0, sizeof(resp));
872 resp.lkey = mr->lkey;
873 resp.rkey = mr->rkey;
874
875 ret = uverbs_response(attrs, &resp, sizeof(resp));
876
877put_new_uobj:
878 if (new_uobj)
879 uobj_alloc_abort(new_uobj, attrs);
880put_uobj_pd:
881 if (cmd.flags & IB_MR_REREG_PD)
882 uobj_put_obj_read(new_pd);
883
884put_uobjs:
885 if (uobj)
886 uobj_put_write(uobj);
887
888 return ret;
889}
890
891static int ib_uverbs_dereg_mr(struct uverbs_attr_bundle *attrs)
892{
893 struct ib_uverbs_dereg_mr cmd;
894 int ret;
895
896 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
897 if (ret)
898 return ret;
899
900 return uobj_perform_destroy(UVERBS_OBJECT_MR, cmd.mr_handle, attrs);
901}
902
903static int ib_uverbs_alloc_mw(struct uverbs_attr_bundle *attrs)
904{
905 struct ib_uverbs_alloc_mw cmd;
906 struct ib_uverbs_alloc_mw_resp resp = {};
907 struct ib_uobject *uobj;
908 struct ib_pd *pd;
909 struct ib_mw *mw;
910 int ret;
911 struct ib_device *ib_dev;
912
913 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
914 if (ret)
915 return ret;
916
917 uobj = uobj_alloc(UVERBS_OBJECT_MW, attrs, &ib_dev);
918 if (IS_ERR(uobj))
919 return PTR_ERR(uobj);
920
921 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
922 if (!pd) {
923 ret = -EINVAL;
924 goto err_free;
925 }
926
927 if (cmd.mw_type != IB_MW_TYPE_1 && cmd.mw_type != IB_MW_TYPE_2) {
928 ret = -EINVAL;
929 goto err_put;
930 }
931
932 mw = rdma_zalloc_drv_obj(ib_dev, ib_mw);
933 if (!mw) {
934 ret = -ENOMEM;
935 goto err_put;
936 }
937
938 mw->device = ib_dev;
939 mw->pd = pd;
940 mw->uobject = uobj;
941 mw->type = cmd.mw_type;
942
943 ret = pd->device->ops.alloc_mw(mw, &attrs->driver_udata);
944 if (ret)
945 goto err_alloc;
946
947 atomic_inc(&pd->usecnt);
948
949 uobj->object = mw;
950 uobj_put_obj_read(pd);
951 uobj_finalize_uobj_create(uobj, attrs);
952
953 resp.rkey = mw->rkey;
954 resp.mw_handle = uobj->id;
955 return uverbs_response(attrs, &resp, sizeof(resp));
956
957err_alloc:
958 kfree(mw);
959err_put:
960 uobj_put_obj_read(pd);
961err_free:
962 uobj_alloc_abort(uobj, attrs);
963 return ret;
964}
965
966static int ib_uverbs_dealloc_mw(struct uverbs_attr_bundle *attrs)
967{
968 struct ib_uverbs_dealloc_mw cmd;
969 int ret;
970
971 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
972 if (ret)
973 return ret;
974
975 return uobj_perform_destroy(UVERBS_OBJECT_MW, cmd.mw_handle, attrs);
976}
977
978static int ib_uverbs_create_comp_channel(struct uverbs_attr_bundle *attrs)
979{
980 struct ib_uverbs_create_comp_channel cmd;
981 struct ib_uverbs_create_comp_channel_resp resp;
982 struct ib_uobject *uobj;
983 struct ib_uverbs_completion_event_file *ev_file;
984 struct ib_device *ib_dev;
985 int ret;
986
987 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
988 if (ret)
989 return ret;
990
991 uobj = uobj_alloc(UVERBS_OBJECT_COMP_CHANNEL, attrs, &ib_dev);
992 if (IS_ERR(uobj))
993 return PTR_ERR(uobj);
994
995 ev_file = container_of(uobj, struct ib_uverbs_completion_event_file,
996 uobj);
997 ib_uverbs_init_event_queue(&ev_file->ev_queue);
998 uobj_finalize_uobj_create(uobj, attrs);
999
1000 resp.fd = uobj->id;
1001 return uverbs_response(attrs, &resp, sizeof(resp));
1002}
1003
1004static int create_cq(struct uverbs_attr_bundle *attrs,
1005 struct ib_uverbs_ex_create_cq *cmd)
1006{
1007 struct ib_ucq_object *obj;
1008 struct ib_uverbs_completion_event_file *ev_file = NULL;
1009 struct ib_cq *cq;
1010 int ret;
1011 struct ib_uverbs_ex_create_cq_resp resp = {};
1012 struct ib_cq_init_attr attr = {};
1013 struct ib_device *ib_dev;
1014
1015 if (cmd->comp_vector >= attrs->ufile->device->num_comp_vectors)
1016 return -EINVAL;
1017
1018 obj = (struct ib_ucq_object *)uobj_alloc(UVERBS_OBJECT_CQ, attrs,
1019 &ib_dev);
1020 if (IS_ERR(obj))
1021 return PTR_ERR(obj);
1022
1023 if (cmd->comp_channel >= 0) {
1024 ev_file = ib_uverbs_lookup_comp_file(cmd->comp_channel, attrs);
1025 if (IS_ERR(ev_file)) {
1026 ret = PTR_ERR(ev_file);
1027 goto err;
1028 }
1029 }
1030
1031 obj->uevent.uobject.user_handle = cmd->user_handle;
1032 INIT_LIST_HEAD(&obj->comp_list);
1033 INIT_LIST_HEAD(&obj->uevent.event_list);
1034
1035 attr.cqe = cmd->cqe;
1036 attr.comp_vector = cmd->comp_vector;
1037 attr.flags = cmd->flags;
1038
1039 cq = rdma_zalloc_drv_obj(ib_dev, ib_cq);
1040 if (!cq) {
1041 ret = -ENOMEM;
1042 goto err_file;
1043 }
1044 cq->device = ib_dev;
1045 cq->uobject = obj;
1046 cq->comp_handler = ib_uverbs_comp_handler;
1047 cq->event_handler = ib_uverbs_cq_event_handler;
1048 cq->cq_context = ev_file ? &ev_file->ev_queue : NULL;
1049 atomic_set(&cq->usecnt, 0);
1050
1051 rdma_restrack_new(&cq->res, RDMA_RESTRACK_CQ);
1052 rdma_restrack_set_name(&cq->res, NULL);
1053
1054 ret = ib_dev->ops.create_cq(cq, &attr, &attrs->driver_udata);
1055 if (ret)
1056 goto err_free;
1057 rdma_restrack_add(&cq->res);
1058
1059 obj->uevent.uobject.object = cq;
1060 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
1061 if (obj->uevent.event_file)
1062 uverbs_uobject_get(&obj->uevent.event_file->uobj);
1063 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1064
1065 resp.base.cq_handle = obj->uevent.uobject.id;
1066 resp.base.cqe = cq->cqe;
1067 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
1068 return uverbs_response(attrs, &resp, sizeof(resp));
1069
1070err_free:
1071 rdma_restrack_put(&cq->res);
1072 kfree(cq);
1073err_file:
1074 if (ev_file)
1075 ib_uverbs_release_ucq(ev_file, obj);
1076err:
1077 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1078 return ret;
1079}
1080
1081static int ib_uverbs_create_cq(struct uverbs_attr_bundle *attrs)
1082{
1083 struct ib_uverbs_create_cq cmd;
1084 struct ib_uverbs_ex_create_cq cmd_ex;
1085 int ret;
1086
1087 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1088 if (ret)
1089 return ret;
1090
1091 memset(&cmd_ex, 0, sizeof(cmd_ex));
1092 cmd_ex.user_handle = cmd.user_handle;
1093 cmd_ex.cqe = cmd.cqe;
1094 cmd_ex.comp_vector = cmd.comp_vector;
1095 cmd_ex.comp_channel = cmd.comp_channel;
1096
1097 return create_cq(attrs, &cmd_ex);
1098}
1099
1100static int ib_uverbs_ex_create_cq(struct uverbs_attr_bundle *attrs)
1101{
1102 struct ib_uverbs_ex_create_cq cmd;
1103 int ret;
1104
1105 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1106 if (ret)
1107 return ret;
1108
1109 if (cmd.comp_mask)
1110 return -EINVAL;
1111
1112 if (cmd.reserved)
1113 return -EINVAL;
1114
1115 return create_cq(attrs, &cmd);
1116}
1117
1118static int ib_uverbs_resize_cq(struct uverbs_attr_bundle *attrs)
1119{
1120 struct ib_uverbs_resize_cq cmd;
1121 struct ib_uverbs_resize_cq_resp resp = {};
1122 struct ib_cq *cq;
1123 int ret;
1124
1125 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1126 if (ret)
1127 return ret;
1128
1129 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1130 if (!cq)
1131 return -EINVAL;
1132
1133 ret = cq->device->ops.resize_cq(cq, cmd.cqe, &attrs->driver_udata);
1134 if (ret)
1135 goto out;
1136
1137 resp.cqe = cq->cqe;
1138
1139 ret = uverbs_response(attrs, &resp, sizeof(resp));
1140out:
1141 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1142 UVERBS_LOOKUP_READ);
1143
1144 return ret;
1145}
1146
1147static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest,
1148 struct ib_wc *wc)
1149{
1150 struct ib_uverbs_wc tmp;
1151
1152 tmp.wr_id = wc->wr_id;
1153 tmp.status = wc->status;
1154 tmp.opcode = wc->opcode;
1155 tmp.vendor_err = wc->vendor_err;
1156 tmp.byte_len = wc->byte_len;
1157 tmp.ex.imm_data = wc->ex.imm_data;
1158 tmp.qp_num = wc->qp->qp_num;
1159 tmp.src_qp = wc->src_qp;
1160 tmp.wc_flags = wc->wc_flags;
1161 tmp.pkey_index = wc->pkey_index;
1162 if (rdma_cap_opa_ah(ib_dev, wc->port_num))
1163 tmp.slid = OPA_TO_IB_UCAST_LID(wc->slid);
1164 else
1165 tmp.slid = ib_lid_cpu16(wc->slid);
1166 tmp.sl = wc->sl;
1167 tmp.dlid_path_bits = wc->dlid_path_bits;
1168 tmp.port_num = wc->port_num;
1169 tmp.reserved = 0;
1170
1171 if (copy_to_user(dest, &tmp, sizeof tmp))
1172 return -EFAULT;
1173
1174 return 0;
1175}
1176
1177static int ib_uverbs_poll_cq(struct uverbs_attr_bundle *attrs)
1178{
1179 struct ib_uverbs_poll_cq cmd;
1180 struct ib_uverbs_poll_cq_resp resp;
1181 u8 __user *header_ptr;
1182 u8 __user *data_ptr;
1183 struct ib_cq *cq;
1184 struct ib_wc wc;
1185 int ret;
1186
1187 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1188 if (ret)
1189 return ret;
1190
1191 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1192 if (!cq)
1193 return -EINVAL;
1194
1195
1196 header_ptr = attrs->ucore.outbuf;
1197 data_ptr = header_ptr + sizeof resp;
1198
1199 memset(&resp, 0, sizeof resp);
1200 while (resp.count < cmd.ne) {
1201 ret = ib_poll_cq(cq, 1, &wc);
1202 if (ret < 0)
1203 goto out_put;
1204 if (!ret)
1205 break;
1206
1207 ret = copy_wc_to_user(cq->device, data_ptr, &wc);
1208 if (ret)
1209 goto out_put;
1210
1211 data_ptr += sizeof(struct ib_uverbs_wc);
1212 ++resp.count;
1213 }
1214
1215 if (copy_to_user(header_ptr, &resp, sizeof resp)) {
1216 ret = -EFAULT;
1217 goto out_put;
1218 }
1219 ret = 0;
1220
1221 if (uverbs_attr_is_valid(attrs, UVERBS_ATTR_CORE_OUT))
1222 ret = uverbs_output_written(attrs, UVERBS_ATTR_CORE_OUT);
1223
1224out_put:
1225 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1226 UVERBS_LOOKUP_READ);
1227 return ret;
1228}
1229
1230static int ib_uverbs_req_notify_cq(struct uverbs_attr_bundle *attrs)
1231{
1232 struct ib_uverbs_req_notify_cq cmd;
1233 struct ib_cq *cq;
1234 int ret;
1235
1236 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1237 if (ret)
1238 return ret;
1239
1240 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1241 if (!cq)
1242 return -EINVAL;
1243
1244 ib_req_notify_cq(cq, cmd.solicited_only ?
1245 IB_CQ_SOLICITED : IB_CQ_NEXT_COMP);
1246
1247 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
1248 UVERBS_LOOKUP_READ);
1249 return 0;
1250}
1251
1252static int ib_uverbs_destroy_cq(struct uverbs_attr_bundle *attrs)
1253{
1254 struct ib_uverbs_destroy_cq cmd;
1255 struct ib_uverbs_destroy_cq_resp resp;
1256 struct ib_uobject *uobj;
1257 struct ib_ucq_object *obj;
1258 int ret;
1259
1260 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1261 if (ret)
1262 return ret;
1263
1264 uobj = uobj_get_destroy(UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
1265 if (IS_ERR(uobj))
1266 return PTR_ERR(uobj);
1267
1268 obj = container_of(uobj, struct ib_ucq_object, uevent.uobject);
1269 memset(&resp, 0, sizeof(resp));
1270 resp.comp_events_reported = obj->comp_events_reported;
1271 resp.async_events_reported = obj->uevent.events_reported;
1272
1273 uobj_put_destroy(uobj);
1274
1275 return uverbs_response(attrs, &resp, sizeof(resp));
1276}
1277
1278static int create_qp(struct uverbs_attr_bundle *attrs,
1279 struct ib_uverbs_ex_create_qp *cmd)
1280{
1281 struct ib_uqp_object *obj;
1282 struct ib_device *device;
1283 struct ib_pd *pd = NULL;
1284 struct ib_xrcd *xrcd = NULL;
1285 struct ib_uobject *xrcd_uobj = ERR_PTR(-ENOENT);
1286 struct ib_cq *scq = NULL, *rcq = NULL;
1287 struct ib_srq *srq = NULL;
1288 struct ib_qp *qp;
1289 struct ib_qp_init_attr attr = {};
1290 struct ib_uverbs_ex_create_qp_resp resp = {};
1291 int ret;
1292 struct ib_rwq_ind_table *ind_tbl = NULL;
1293 bool has_sq = true;
1294 struct ib_device *ib_dev;
1295
1296 switch (cmd->qp_type) {
1297 case IB_QPT_RAW_PACKET:
1298 if (!capable(CAP_NET_RAW))
1299 return -EPERM;
1300 break;
1301 case IB_QPT_RC:
1302 case IB_QPT_UC:
1303 case IB_QPT_UD:
1304 case IB_QPT_XRC_INI:
1305 case IB_QPT_XRC_TGT:
1306 case IB_QPT_DRIVER:
1307 break;
1308 default:
1309 return -EINVAL;
1310 }
1311
1312 obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
1313 &ib_dev);
1314 if (IS_ERR(obj))
1315 return PTR_ERR(obj);
1316 obj->uxrcd = NULL;
1317 obj->uevent.uobject.user_handle = cmd->user_handle;
1318 mutex_init(&obj->mcast_lock);
1319
1320 if (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE) {
1321 ind_tbl = uobj_get_obj_read(rwq_ind_table,
1322 UVERBS_OBJECT_RWQ_IND_TBL,
1323 cmd->rwq_ind_tbl_handle, attrs);
1324 if (!ind_tbl) {
1325 ret = -EINVAL;
1326 goto err_put;
1327 }
1328
1329 attr.rwq_ind_tbl = ind_tbl;
1330 }
1331
1332 if (ind_tbl && (cmd->max_recv_wr || cmd->max_recv_sge || cmd->is_srq)) {
1333 ret = -EINVAL;
1334 goto err_put;
1335 }
1336
1337 if (ind_tbl && !cmd->max_send_wr)
1338 has_sq = false;
1339
1340 if (cmd->qp_type == IB_QPT_XRC_TGT) {
1341 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->pd_handle,
1342 attrs);
1343
1344 if (IS_ERR(xrcd_uobj)) {
1345 ret = -EINVAL;
1346 goto err_put;
1347 }
1348
1349 xrcd = (struct ib_xrcd *)xrcd_uobj->object;
1350 if (!xrcd) {
1351 ret = -EINVAL;
1352 goto err_put;
1353 }
1354 device = xrcd->device;
1355 } else {
1356 if (cmd->qp_type == IB_QPT_XRC_INI) {
1357 cmd->max_recv_wr = 0;
1358 cmd->max_recv_sge = 0;
1359 } else {
1360 if (cmd->is_srq) {
1361 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ,
1362 cmd->srq_handle, attrs);
1363 if (!srq || srq->srq_type == IB_SRQT_XRC) {
1364 ret = -EINVAL;
1365 goto err_put;
1366 }
1367 }
1368
1369 if (!ind_tbl) {
1370 if (cmd->recv_cq_handle != cmd->send_cq_handle) {
1371 rcq = uobj_get_obj_read(
1372 cq, UVERBS_OBJECT_CQ,
1373 cmd->recv_cq_handle, attrs);
1374 if (!rcq) {
1375 ret = -EINVAL;
1376 goto err_put;
1377 }
1378 }
1379 }
1380 }
1381
1382 if (has_sq)
1383 scq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ,
1384 cmd->send_cq_handle, attrs);
1385 if (!ind_tbl && cmd->qp_type != IB_QPT_XRC_INI)
1386 rcq = rcq ?: scq;
1387 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle,
1388 attrs);
1389 if (!pd || (!scq && has_sq)) {
1390 ret = -EINVAL;
1391 goto err_put;
1392 }
1393
1394 device = pd->device;
1395 }
1396
1397 attr.event_handler = ib_uverbs_qp_event_handler;
1398 attr.send_cq = scq;
1399 attr.recv_cq = rcq;
1400 attr.srq = srq;
1401 attr.xrcd = xrcd;
1402 attr.sq_sig_type = cmd->sq_sig_all ? IB_SIGNAL_ALL_WR :
1403 IB_SIGNAL_REQ_WR;
1404 attr.qp_type = cmd->qp_type;
1405 attr.create_flags = 0;
1406
1407 attr.cap.max_send_wr = cmd->max_send_wr;
1408 attr.cap.max_recv_wr = cmd->max_recv_wr;
1409 attr.cap.max_send_sge = cmd->max_send_sge;
1410 attr.cap.max_recv_sge = cmd->max_recv_sge;
1411 attr.cap.max_inline_data = cmd->max_inline_data;
1412
1413 INIT_LIST_HEAD(&obj->uevent.event_list);
1414 INIT_LIST_HEAD(&obj->mcast_list);
1415
1416 attr.create_flags = cmd->create_flags;
1417 if (attr.create_flags & ~(IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK |
1418 IB_QP_CREATE_CROSS_CHANNEL |
1419 IB_QP_CREATE_MANAGED_SEND |
1420 IB_QP_CREATE_MANAGED_RECV |
1421 IB_QP_CREATE_SCATTER_FCS |
1422 IB_QP_CREATE_CVLAN_STRIPPING |
1423 IB_QP_CREATE_SOURCE_QPN |
1424 IB_QP_CREATE_PCI_WRITE_END_PADDING)) {
1425 ret = -EINVAL;
1426 goto err_put;
1427 }
1428
1429 if (attr.create_flags & IB_QP_CREATE_SOURCE_QPN) {
1430 if (!capable(CAP_NET_RAW)) {
1431 ret = -EPERM;
1432 goto err_put;
1433 }
1434
1435 attr.source_qpn = cmd->source_qpn;
1436 }
1437
1438 qp = ib_create_qp_user(device, pd, &attr, &attrs->driver_udata, obj,
1439 KBUILD_MODNAME);
1440 if (IS_ERR(qp)) {
1441 ret = PTR_ERR(qp);
1442 goto err_put;
1443 }
1444 ib_qp_usecnt_inc(qp);
1445
1446 obj->uevent.uobject.object = qp;
1447 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
1448 if (obj->uevent.event_file)
1449 uverbs_uobject_get(&obj->uevent.event_file->uobj);
1450
1451 if (xrcd) {
1452 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object,
1453 uobject);
1454 atomic_inc(&obj->uxrcd->refcnt);
1455 uobj_put_read(xrcd_uobj);
1456 }
1457
1458 if (pd)
1459 uobj_put_obj_read(pd);
1460 if (scq)
1461 rdma_lookup_put_uobject(&scq->uobject->uevent.uobject,
1462 UVERBS_LOOKUP_READ);
1463 if (rcq && rcq != scq)
1464 rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
1465 UVERBS_LOOKUP_READ);
1466 if (srq)
1467 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
1468 UVERBS_LOOKUP_READ);
1469 if (ind_tbl)
1470 uobj_put_obj_read(ind_tbl);
1471 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1472
1473 resp.base.qpn = qp->qp_num;
1474 resp.base.qp_handle = obj->uevent.uobject.id;
1475 resp.base.max_recv_sge = attr.cap.max_recv_sge;
1476 resp.base.max_send_sge = attr.cap.max_send_sge;
1477 resp.base.max_recv_wr = attr.cap.max_recv_wr;
1478 resp.base.max_send_wr = attr.cap.max_send_wr;
1479 resp.base.max_inline_data = attr.cap.max_inline_data;
1480 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
1481 return uverbs_response(attrs, &resp, sizeof(resp));
1482
1483err_put:
1484 if (!IS_ERR(xrcd_uobj))
1485 uobj_put_read(xrcd_uobj);
1486 if (pd)
1487 uobj_put_obj_read(pd);
1488 if (scq)
1489 rdma_lookup_put_uobject(&scq->uobject->uevent.uobject,
1490 UVERBS_LOOKUP_READ);
1491 if (rcq && rcq != scq)
1492 rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject,
1493 UVERBS_LOOKUP_READ);
1494 if (srq)
1495 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
1496 UVERBS_LOOKUP_READ);
1497 if (ind_tbl)
1498 uobj_put_obj_read(ind_tbl);
1499
1500 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1501 return ret;
1502}
1503
1504static int ib_uverbs_create_qp(struct uverbs_attr_bundle *attrs)
1505{
1506 struct ib_uverbs_create_qp cmd;
1507 struct ib_uverbs_ex_create_qp cmd_ex;
1508 int ret;
1509
1510 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1511 if (ret)
1512 return ret;
1513
1514 memset(&cmd_ex, 0, sizeof(cmd_ex));
1515 cmd_ex.user_handle = cmd.user_handle;
1516 cmd_ex.pd_handle = cmd.pd_handle;
1517 cmd_ex.send_cq_handle = cmd.send_cq_handle;
1518 cmd_ex.recv_cq_handle = cmd.recv_cq_handle;
1519 cmd_ex.srq_handle = cmd.srq_handle;
1520 cmd_ex.max_send_wr = cmd.max_send_wr;
1521 cmd_ex.max_recv_wr = cmd.max_recv_wr;
1522 cmd_ex.max_send_sge = cmd.max_send_sge;
1523 cmd_ex.max_recv_sge = cmd.max_recv_sge;
1524 cmd_ex.max_inline_data = cmd.max_inline_data;
1525 cmd_ex.sq_sig_all = cmd.sq_sig_all;
1526 cmd_ex.qp_type = cmd.qp_type;
1527 cmd_ex.is_srq = cmd.is_srq;
1528
1529 return create_qp(attrs, &cmd_ex);
1530}
1531
1532static int ib_uverbs_ex_create_qp(struct uverbs_attr_bundle *attrs)
1533{
1534 struct ib_uverbs_ex_create_qp cmd;
1535 int ret;
1536
1537 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1538 if (ret)
1539 return ret;
1540
1541 if (cmd.comp_mask & ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK)
1542 return -EINVAL;
1543
1544 if (cmd.reserved)
1545 return -EINVAL;
1546
1547 return create_qp(attrs, &cmd);
1548}
1549
1550static int ib_uverbs_open_qp(struct uverbs_attr_bundle *attrs)
1551{
1552 struct ib_uverbs_create_qp_resp resp = {};
1553 struct ib_uverbs_open_qp cmd;
1554 struct ib_uqp_object *obj;
1555 struct ib_xrcd *xrcd;
1556 struct ib_qp *qp;
1557 struct ib_qp_open_attr attr = {};
1558 int ret;
1559 struct ib_uobject *xrcd_uobj;
1560 struct ib_device *ib_dev;
1561
1562 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1563 if (ret)
1564 return ret;
1565
1566 obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
1567 &ib_dev);
1568 if (IS_ERR(obj))
1569 return PTR_ERR(obj);
1570
1571 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd.pd_handle, attrs);
1572 if (IS_ERR(xrcd_uobj)) {
1573 ret = -EINVAL;
1574 goto err_put;
1575 }
1576
1577 xrcd = (struct ib_xrcd *)xrcd_uobj->object;
1578 if (!xrcd) {
1579 ret = -EINVAL;
1580 goto err_xrcd;
1581 }
1582
1583 attr.event_handler = ib_uverbs_qp_event_handler;
1584 attr.qp_num = cmd.qpn;
1585 attr.qp_type = cmd.qp_type;
1586
1587 INIT_LIST_HEAD(&obj->uevent.event_list);
1588 INIT_LIST_HEAD(&obj->mcast_list);
1589
1590 qp = ib_open_qp(xrcd, &attr);
1591 if (IS_ERR(qp)) {
1592 ret = PTR_ERR(qp);
1593 goto err_xrcd;
1594 }
1595
1596 obj->uevent.uobject.object = qp;
1597 obj->uevent.uobject.user_handle = cmd.user_handle;
1598
1599 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
1600 atomic_inc(&obj->uxrcd->refcnt);
1601 qp->uobject = obj;
1602 uobj_put_read(xrcd_uobj);
1603 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
1604
1605 resp.qpn = qp->qp_num;
1606 resp.qp_handle = obj->uevent.uobject.id;
1607 return uverbs_response(attrs, &resp, sizeof(resp));
1608
1609err_xrcd:
1610 uobj_put_read(xrcd_uobj);
1611err_put:
1612 uobj_alloc_abort(&obj->uevent.uobject, attrs);
1613 return ret;
1614}
1615
1616static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest *uverb_attr,
1617 struct rdma_ah_attr *rdma_attr)
1618{
1619 const struct ib_global_route *grh;
1620
1621 uverb_attr->dlid = rdma_ah_get_dlid(rdma_attr);
1622 uverb_attr->sl = rdma_ah_get_sl(rdma_attr);
1623 uverb_attr->src_path_bits = rdma_ah_get_path_bits(rdma_attr);
1624 uverb_attr->static_rate = rdma_ah_get_static_rate(rdma_attr);
1625 uverb_attr->is_global = !!(rdma_ah_get_ah_flags(rdma_attr) &
1626 IB_AH_GRH);
1627 if (uverb_attr->is_global) {
1628 grh = rdma_ah_read_grh(rdma_attr);
1629 memcpy(uverb_attr->dgid, grh->dgid.raw, 16);
1630 uverb_attr->flow_label = grh->flow_label;
1631 uverb_attr->sgid_index = grh->sgid_index;
1632 uverb_attr->hop_limit = grh->hop_limit;
1633 uverb_attr->traffic_class = grh->traffic_class;
1634 }
1635 uverb_attr->port_num = rdma_ah_get_port_num(rdma_attr);
1636}
1637
1638static int ib_uverbs_query_qp(struct uverbs_attr_bundle *attrs)
1639{
1640 struct ib_uverbs_query_qp cmd;
1641 struct ib_uverbs_query_qp_resp resp;
1642 struct ib_qp *qp;
1643 struct ib_qp_attr *attr;
1644 struct ib_qp_init_attr *init_attr;
1645 int ret;
1646
1647 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1648 if (ret)
1649 return ret;
1650
1651 attr = kmalloc(sizeof *attr, GFP_KERNEL);
1652 init_attr = kmalloc(sizeof *init_attr, GFP_KERNEL);
1653 if (!attr || !init_attr) {
1654 ret = -ENOMEM;
1655 goto out;
1656 }
1657
1658 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
1659 if (!qp) {
1660 ret = -EINVAL;
1661 goto out;
1662 }
1663
1664 ret = ib_query_qp(qp, attr, cmd.attr_mask, init_attr);
1665
1666 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
1667 UVERBS_LOOKUP_READ);
1668
1669 if (ret)
1670 goto out;
1671
1672 memset(&resp, 0, sizeof resp);
1673
1674 resp.qp_state = attr->qp_state;
1675 resp.cur_qp_state = attr->cur_qp_state;
1676 resp.path_mtu = attr->path_mtu;
1677 resp.path_mig_state = attr->path_mig_state;
1678 resp.qkey = attr->qkey;
1679 resp.rq_psn = attr->rq_psn;
1680 resp.sq_psn = attr->sq_psn;
1681 resp.dest_qp_num = attr->dest_qp_num;
1682 resp.qp_access_flags = attr->qp_access_flags;
1683 resp.pkey_index = attr->pkey_index;
1684 resp.alt_pkey_index = attr->alt_pkey_index;
1685 resp.sq_draining = attr->sq_draining;
1686 resp.max_rd_atomic = attr->max_rd_atomic;
1687 resp.max_dest_rd_atomic = attr->max_dest_rd_atomic;
1688 resp.min_rnr_timer = attr->min_rnr_timer;
1689 resp.port_num = attr->port_num;
1690 resp.timeout = attr->timeout;
1691 resp.retry_cnt = attr->retry_cnt;
1692 resp.rnr_retry = attr->rnr_retry;
1693 resp.alt_port_num = attr->alt_port_num;
1694 resp.alt_timeout = attr->alt_timeout;
1695
1696 copy_ah_attr_to_uverbs(&resp.dest, &attr->ah_attr);
1697 copy_ah_attr_to_uverbs(&resp.alt_dest, &attr->alt_ah_attr);
1698
1699 resp.max_send_wr = init_attr->cap.max_send_wr;
1700 resp.max_recv_wr = init_attr->cap.max_recv_wr;
1701 resp.max_send_sge = init_attr->cap.max_send_sge;
1702 resp.max_recv_sge = init_attr->cap.max_recv_sge;
1703 resp.max_inline_data = init_attr->cap.max_inline_data;
1704 resp.sq_sig_all = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR;
1705
1706 ret = uverbs_response(attrs, &resp, sizeof(resp));
1707
1708out:
1709 kfree(attr);
1710 kfree(init_attr);
1711
1712 return ret;
1713}
1714
1715
1716static int modify_qp_mask(enum ib_qp_type qp_type, int mask)
1717{
1718 switch (qp_type) {
1719 case IB_QPT_XRC_INI:
1720 return mask & ~(IB_QP_MAX_DEST_RD_ATOMIC | IB_QP_MIN_RNR_TIMER);
1721 case IB_QPT_XRC_TGT:
1722 return mask & ~(IB_QP_MAX_QP_RD_ATOMIC | IB_QP_RETRY_CNT |
1723 IB_QP_RNR_RETRY);
1724 default:
1725 return mask;
1726 }
1727}
1728
1729static void copy_ah_attr_from_uverbs(struct ib_device *dev,
1730 struct rdma_ah_attr *rdma_attr,
1731 struct ib_uverbs_qp_dest *uverb_attr)
1732{
1733 rdma_attr->type = rdma_ah_find_type(dev, uverb_attr->port_num);
1734 if (uverb_attr->is_global) {
1735 rdma_ah_set_grh(rdma_attr, NULL,
1736 uverb_attr->flow_label,
1737 uverb_attr->sgid_index,
1738 uverb_attr->hop_limit,
1739 uverb_attr->traffic_class);
1740 rdma_ah_set_dgid_raw(rdma_attr, uverb_attr->dgid);
1741 } else {
1742 rdma_ah_set_ah_flags(rdma_attr, 0);
1743 }
1744 rdma_ah_set_dlid(rdma_attr, uverb_attr->dlid);
1745 rdma_ah_set_sl(rdma_attr, uverb_attr->sl);
1746 rdma_ah_set_path_bits(rdma_attr, uverb_attr->src_path_bits);
1747 rdma_ah_set_static_rate(rdma_attr, uverb_attr->static_rate);
1748 rdma_ah_set_port_num(rdma_attr, uverb_attr->port_num);
1749 rdma_ah_set_make_grd(rdma_attr, false);
1750}
1751
1752static int modify_qp(struct uverbs_attr_bundle *attrs,
1753 struct ib_uverbs_ex_modify_qp *cmd)
1754{
1755 struct ib_qp_attr *attr;
1756 struct ib_qp *qp;
1757 int ret;
1758
1759 attr = kzalloc(sizeof(*attr), GFP_KERNEL);
1760 if (!attr)
1761 return -ENOMEM;
1762
1763 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd->base.qp_handle,
1764 attrs);
1765 if (!qp) {
1766 ret = -EINVAL;
1767 goto out;
1768 }
1769
1770 if ((cmd->base.attr_mask & IB_QP_PORT) &&
1771 !rdma_is_port_valid(qp->device, cmd->base.port_num)) {
1772 ret = -EINVAL;
1773 goto release_qp;
1774 }
1775
1776 if ((cmd->base.attr_mask & IB_QP_AV)) {
1777 if (!rdma_is_port_valid(qp->device, cmd->base.dest.port_num)) {
1778 ret = -EINVAL;
1779 goto release_qp;
1780 }
1781
1782 if (cmd->base.attr_mask & IB_QP_STATE &&
1783 cmd->base.qp_state == IB_QPS_RTR) {
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798 if (cmd->base.dest.port_num != qp->real_qp->port) {
1799 ret = -EINVAL;
1800 goto release_qp;
1801 }
1802 } else {
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816 if (((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT))
1817 == (IB_QP_AV | IB_QP_PORT)) &&
1818 cmd->base.port_num != cmd->base.dest.port_num) {
1819 ret = -EINVAL;
1820 goto release_qp;
1821 }
1822 if ((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT))
1823 == IB_QP_AV) {
1824 cmd->base.attr_mask |= IB_QP_PORT;
1825 cmd->base.port_num = cmd->base.dest.port_num;
1826 }
1827 }
1828 }
1829
1830 if ((cmd->base.attr_mask & IB_QP_ALT_PATH) &&
1831 (!rdma_is_port_valid(qp->device, cmd->base.alt_port_num) ||
1832 !rdma_is_port_valid(qp->device, cmd->base.alt_dest.port_num) ||
1833 cmd->base.alt_port_num != cmd->base.alt_dest.port_num)) {
1834 ret = -EINVAL;
1835 goto release_qp;
1836 }
1837
1838 if ((cmd->base.attr_mask & IB_QP_CUR_STATE &&
1839 cmd->base.cur_qp_state > IB_QPS_ERR) ||
1840 (cmd->base.attr_mask & IB_QP_STATE &&
1841 cmd->base.qp_state > IB_QPS_ERR)) {
1842 ret = -EINVAL;
1843 goto release_qp;
1844 }
1845
1846 if (cmd->base.attr_mask & IB_QP_STATE)
1847 attr->qp_state = cmd->base.qp_state;
1848 if (cmd->base.attr_mask & IB_QP_CUR_STATE)
1849 attr->cur_qp_state = cmd->base.cur_qp_state;
1850 if (cmd->base.attr_mask & IB_QP_PATH_MTU)
1851 attr->path_mtu = cmd->base.path_mtu;
1852 if (cmd->base.attr_mask & IB_QP_PATH_MIG_STATE)
1853 attr->path_mig_state = cmd->base.path_mig_state;
1854 if (cmd->base.attr_mask & IB_QP_QKEY)
1855 attr->qkey = cmd->base.qkey;
1856 if (cmd->base.attr_mask & IB_QP_RQ_PSN)
1857 attr->rq_psn = cmd->base.rq_psn;
1858 if (cmd->base.attr_mask & IB_QP_SQ_PSN)
1859 attr->sq_psn = cmd->base.sq_psn;
1860 if (cmd->base.attr_mask & IB_QP_DEST_QPN)
1861 attr->dest_qp_num = cmd->base.dest_qp_num;
1862 if (cmd->base.attr_mask & IB_QP_ACCESS_FLAGS)
1863 attr->qp_access_flags = cmd->base.qp_access_flags;
1864 if (cmd->base.attr_mask & IB_QP_PKEY_INDEX)
1865 attr->pkey_index = cmd->base.pkey_index;
1866 if (cmd->base.attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY)
1867 attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify;
1868 if (cmd->base.attr_mask & IB_QP_MAX_QP_RD_ATOMIC)
1869 attr->max_rd_atomic = cmd->base.max_rd_atomic;
1870 if (cmd->base.attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
1871 attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic;
1872 if (cmd->base.attr_mask & IB_QP_MIN_RNR_TIMER)
1873 attr->min_rnr_timer = cmd->base.min_rnr_timer;
1874 if (cmd->base.attr_mask & IB_QP_PORT)
1875 attr->port_num = cmd->base.port_num;
1876 if (cmd->base.attr_mask & IB_QP_TIMEOUT)
1877 attr->timeout = cmd->base.timeout;
1878 if (cmd->base.attr_mask & IB_QP_RETRY_CNT)
1879 attr->retry_cnt = cmd->base.retry_cnt;
1880 if (cmd->base.attr_mask & IB_QP_RNR_RETRY)
1881 attr->rnr_retry = cmd->base.rnr_retry;
1882 if (cmd->base.attr_mask & IB_QP_ALT_PATH) {
1883 attr->alt_port_num = cmd->base.alt_port_num;
1884 attr->alt_timeout = cmd->base.alt_timeout;
1885 attr->alt_pkey_index = cmd->base.alt_pkey_index;
1886 }
1887 if (cmd->base.attr_mask & IB_QP_RATE_LIMIT)
1888 attr->rate_limit = cmd->rate_limit;
1889
1890 if (cmd->base.attr_mask & IB_QP_AV)
1891 copy_ah_attr_from_uverbs(qp->device, &attr->ah_attr,
1892 &cmd->base.dest);
1893
1894 if (cmd->base.attr_mask & IB_QP_ALT_PATH)
1895 copy_ah_attr_from_uverbs(qp->device, &attr->alt_ah_attr,
1896 &cmd->base.alt_dest);
1897
1898 ret = ib_modify_qp_with_udata(qp, attr,
1899 modify_qp_mask(qp->qp_type,
1900 cmd->base.attr_mask),
1901 &attrs->driver_udata);
1902
1903release_qp:
1904 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
1905 UVERBS_LOOKUP_READ);
1906out:
1907 kfree(attr);
1908
1909 return ret;
1910}
1911
1912static int ib_uverbs_modify_qp(struct uverbs_attr_bundle *attrs)
1913{
1914 struct ib_uverbs_ex_modify_qp cmd;
1915 int ret;
1916
1917 ret = uverbs_request(attrs, &cmd.base, sizeof(cmd.base));
1918 if (ret)
1919 return ret;
1920
1921 if (cmd.base.attr_mask & ~IB_QP_ATTR_STANDARD_BITS)
1922 return -EOPNOTSUPP;
1923
1924 return modify_qp(attrs, &cmd);
1925}
1926
1927static int ib_uverbs_ex_modify_qp(struct uverbs_attr_bundle *attrs)
1928{
1929 struct ib_uverbs_ex_modify_qp cmd;
1930 struct ib_uverbs_ex_modify_qp_resp resp = {
1931 .response_length = uverbs_response_length(attrs, sizeof(resp))
1932 };
1933 int ret;
1934
1935 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1936 if (ret)
1937 return ret;
1938
1939
1940
1941
1942
1943 if (cmd.base.attr_mask & ~(IB_QP_ATTR_STANDARD_BITS | IB_QP_RATE_LIMIT))
1944 return -EOPNOTSUPP;
1945
1946 ret = modify_qp(attrs, &cmd);
1947 if (ret)
1948 return ret;
1949
1950 return uverbs_response(attrs, &resp, sizeof(resp));
1951}
1952
1953static int ib_uverbs_destroy_qp(struct uverbs_attr_bundle *attrs)
1954{
1955 struct ib_uverbs_destroy_qp cmd;
1956 struct ib_uverbs_destroy_qp_resp resp;
1957 struct ib_uobject *uobj;
1958 struct ib_uqp_object *obj;
1959 int ret;
1960
1961 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
1962 if (ret)
1963 return ret;
1964
1965 uobj = uobj_get_destroy(UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
1966 if (IS_ERR(uobj))
1967 return PTR_ERR(uobj);
1968
1969 obj = container_of(uobj, struct ib_uqp_object, uevent.uobject);
1970 memset(&resp, 0, sizeof(resp));
1971 resp.events_reported = obj->uevent.events_reported;
1972
1973 uobj_put_destroy(uobj);
1974
1975 return uverbs_response(attrs, &resp, sizeof(resp));
1976}
1977
1978static void *alloc_wr(size_t wr_size, __u32 num_sge)
1979{
1980 if (num_sge >= (U32_MAX - ALIGN(wr_size, sizeof(struct ib_sge))) /
1981 sizeof(struct ib_sge))
1982 return NULL;
1983
1984 return kmalloc(ALIGN(wr_size, sizeof(struct ib_sge)) +
1985 num_sge * sizeof(struct ib_sge),
1986 GFP_KERNEL);
1987}
1988
1989static int ib_uverbs_post_send(struct uverbs_attr_bundle *attrs)
1990{
1991 struct ib_uverbs_post_send cmd;
1992 struct ib_uverbs_post_send_resp resp;
1993 struct ib_uverbs_send_wr *user_wr;
1994 struct ib_send_wr *wr = NULL, *last, *next;
1995 const struct ib_send_wr *bad_wr;
1996 struct ib_qp *qp;
1997 int i, sg_ind;
1998 int is_ud;
1999 int ret, ret2;
2000 size_t next_size;
2001 const struct ib_sge __user *sgls;
2002 const void __user *wqes;
2003 struct uverbs_req_iter iter;
2004
2005 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2006 if (ret)
2007 return ret;
2008 wqes = uverbs_request_next_ptr(&iter, cmd.wqe_size * cmd.wr_count);
2009 if (IS_ERR(wqes))
2010 return PTR_ERR(wqes);
2011 sgls = uverbs_request_next_ptr(
2012 &iter, cmd.sge_count * sizeof(struct ib_uverbs_sge));
2013 if (IS_ERR(sgls))
2014 return PTR_ERR(sgls);
2015 ret = uverbs_request_finish(&iter);
2016 if (ret)
2017 return ret;
2018
2019 user_wr = kmalloc(cmd.wqe_size, GFP_KERNEL);
2020 if (!user_wr)
2021 return -ENOMEM;
2022
2023 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2024 if (!qp) {
2025 ret = -EINVAL;
2026 goto out;
2027 }
2028
2029 is_ud = qp->qp_type == IB_QPT_UD;
2030 sg_ind = 0;
2031 last = NULL;
2032 for (i = 0; i < cmd.wr_count; ++i) {
2033 if (copy_from_user(user_wr, wqes + i * cmd.wqe_size,
2034 cmd.wqe_size)) {
2035 ret = -EFAULT;
2036 goto out_put;
2037 }
2038
2039 if (user_wr->num_sge + sg_ind > cmd.sge_count) {
2040 ret = -EINVAL;
2041 goto out_put;
2042 }
2043
2044 if (is_ud) {
2045 struct ib_ud_wr *ud;
2046
2047 if (user_wr->opcode != IB_WR_SEND &&
2048 user_wr->opcode != IB_WR_SEND_WITH_IMM) {
2049 ret = -EINVAL;
2050 goto out_put;
2051 }
2052
2053 next_size = sizeof(*ud);
2054 ud = alloc_wr(next_size, user_wr->num_sge);
2055 if (!ud) {
2056 ret = -ENOMEM;
2057 goto out_put;
2058 }
2059
2060 ud->ah = uobj_get_obj_read(ah, UVERBS_OBJECT_AH,
2061 user_wr->wr.ud.ah, attrs);
2062 if (!ud->ah) {
2063 kfree(ud);
2064 ret = -EINVAL;
2065 goto out_put;
2066 }
2067 ud->remote_qpn = user_wr->wr.ud.remote_qpn;
2068 ud->remote_qkey = user_wr->wr.ud.remote_qkey;
2069
2070 next = &ud->wr;
2071 } else if (user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM ||
2072 user_wr->opcode == IB_WR_RDMA_WRITE ||
2073 user_wr->opcode == IB_WR_RDMA_READ) {
2074 struct ib_rdma_wr *rdma;
2075
2076 next_size = sizeof(*rdma);
2077 rdma = alloc_wr(next_size, user_wr->num_sge);
2078 if (!rdma) {
2079 ret = -ENOMEM;
2080 goto out_put;
2081 }
2082
2083 rdma->remote_addr = user_wr->wr.rdma.remote_addr;
2084 rdma->rkey = user_wr->wr.rdma.rkey;
2085
2086 next = &rdma->wr;
2087 } else if (user_wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP ||
2088 user_wr->opcode == IB_WR_ATOMIC_FETCH_AND_ADD) {
2089 struct ib_atomic_wr *atomic;
2090
2091 next_size = sizeof(*atomic);
2092 atomic = alloc_wr(next_size, user_wr->num_sge);
2093 if (!atomic) {
2094 ret = -ENOMEM;
2095 goto out_put;
2096 }
2097
2098 atomic->remote_addr = user_wr->wr.atomic.remote_addr;
2099 atomic->compare_add = user_wr->wr.atomic.compare_add;
2100 atomic->swap = user_wr->wr.atomic.swap;
2101 atomic->rkey = user_wr->wr.atomic.rkey;
2102
2103 next = &atomic->wr;
2104 } else if (user_wr->opcode == IB_WR_SEND ||
2105 user_wr->opcode == IB_WR_SEND_WITH_IMM ||
2106 user_wr->opcode == IB_WR_SEND_WITH_INV) {
2107 next_size = sizeof(*next);
2108 next = alloc_wr(next_size, user_wr->num_sge);
2109 if (!next) {
2110 ret = -ENOMEM;
2111 goto out_put;
2112 }
2113 } else {
2114 ret = -EINVAL;
2115 goto out_put;
2116 }
2117
2118 if (user_wr->opcode == IB_WR_SEND_WITH_IMM ||
2119 user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) {
2120 next->ex.imm_data =
2121 (__be32 __force) user_wr->ex.imm_data;
2122 } else if (user_wr->opcode == IB_WR_SEND_WITH_INV) {
2123 next->ex.invalidate_rkey = user_wr->ex.invalidate_rkey;
2124 }
2125
2126 if (!last)
2127 wr = next;
2128 else
2129 last->next = next;
2130 last = next;
2131
2132 next->next = NULL;
2133 next->wr_id = user_wr->wr_id;
2134 next->num_sge = user_wr->num_sge;
2135 next->opcode = user_wr->opcode;
2136 next->send_flags = user_wr->send_flags;
2137
2138 if (next->num_sge) {
2139 next->sg_list = (void *) next +
2140 ALIGN(next_size, sizeof(struct ib_sge));
2141 if (copy_from_user(next->sg_list, sgls + sg_ind,
2142 next->num_sge *
2143 sizeof(struct ib_sge))) {
2144 ret = -EFAULT;
2145 goto out_put;
2146 }
2147 sg_ind += next->num_sge;
2148 } else
2149 next->sg_list = NULL;
2150 }
2151
2152 resp.bad_wr = 0;
2153 ret = qp->device->ops.post_send(qp->real_qp, wr, &bad_wr);
2154 if (ret)
2155 for (next = wr; next; next = next->next) {
2156 ++resp.bad_wr;
2157 if (next == bad_wr)
2158 break;
2159 }
2160
2161 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2162 if (ret2)
2163 ret = ret2;
2164
2165out_put:
2166 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2167 UVERBS_LOOKUP_READ);
2168
2169 while (wr) {
2170 if (is_ud && ud_wr(wr)->ah)
2171 uobj_put_obj_read(ud_wr(wr)->ah);
2172 next = wr->next;
2173 kfree(wr);
2174 wr = next;
2175 }
2176
2177out:
2178 kfree(user_wr);
2179
2180 return ret;
2181}
2182
2183static struct ib_recv_wr *
2184ib_uverbs_unmarshall_recv(struct uverbs_req_iter *iter, u32 wr_count,
2185 u32 wqe_size, u32 sge_count)
2186{
2187 struct ib_uverbs_recv_wr *user_wr;
2188 struct ib_recv_wr *wr = NULL, *last, *next;
2189 int sg_ind;
2190 int i;
2191 int ret;
2192 const struct ib_sge __user *sgls;
2193 const void __user *wqes;
2194
2195 if (wqe_size < sizeof(struct ib_uverbs_recv_wr))
2196 return ERR_PTR(-EINVAL);
2197
2198 wqes = uverbs_request_next_ptr(iter, wqe_size * wr_count);
2199 if (IS_ERR(wqes))
2200 return ERR_CAST(wqes);
2201 sgls = uverbs_request_next_ptr(
2202 iter, sge_count * sizeof(struct ib_uverbs_sge));
2203 if (IS_ERR(sgls))
2204 return ERR_CAST(sgls);
2205 ret = uverbs_request_finish(iter);
2206 if (ret)
2207 return ERR_PTR(ret);
2208
2209 user_wr = kmalloc(wqe_size, GFP_KERNEL);
2210 if (!user_wr)
2211 return ERR_PTR(-ENOMEM);
2212
2213 sg_ind = 0;
2214 last = NULL;
2215 for (i = 0; i < wr_count; ++i) {
2216 if (copy_from_user(user_wr, wqes + i * wqe_size,
2217 wqe_size)) {
2218 ret = -EFAULT;
2219 goto err;
2220 }
2221
2222 if (user_wr->num_sge + sg_ind > sge_count) {
2223 ret = -EINVAL;
2224 goto err;
2225 }
2226
2227 if (user_wr->num_sge >=
2228 (U32_MAX - ALIGN(sizeof(*next), sizeof(struct ib_sge))) /
2229 sizeof(struct ib_sge)) {
2230 ret = -EINVAL;
2231 goto err;
2232 }
2233
2234 next = kmalloc(ALIGN(sizeof(*next), sizeof(struct ib_sge)) +
2235 user_wr->num_sge * sizeof(struct ib_sge),
2236 GFP_KERNEL);
2237 if (!next) {
2238 ret = -ENOMEM;
2239 goto err;
2240 }
2241
2242 if (!last)
2243 wr = next;
2244 else
2245 last->next = next;
2246 last = next;
2247
2248 next->next = NULL;
2249 next->wr_id = user_wr->wr_id;
2250 next->num_sge = user_wr->num_sge;
2251
2252 if (next->num_sge) {
2253 next->sg_list = (void *)next +
2254 ALIGN(sizeof(*next), sizeof(struct ib_sge));
2255 if (copy_from_user(next->sg_list, sgls + sg_ind,
2256 next->num_sge *
2257 sizeof(struct ib_sge))) {
2258 ret = -EFAULT;
2259 goto err;
2260 }
2261 sg_ind += next->num_sge;
2262 } else
2263 next->sg_list = NULL;
2264 }
2265
2266 kfree(user_wr);
2267 return wr;
2268
2269err:
2270 kfree(user_wr);
2271
2272 while (wr) {
2273 next = wr->next;
2274 kfree(wr);
2275 wr = next;
2276 }
2277
2278 return ERR_PTR(ret);
2279}
2280
2281static int ib_uverbs_post_recv(struct uverbs_attr_bundle *attrs)
2282{
2283 struct ib_uverbs_post_recv cmd;
2284 struct ib_uverbs_post_recv_resp resp;
2285 struct ib_recv_wr *wr, *next;
2286 const struct ib_recv_wr *bad_wr;
2287 struct ib_qp *qp;
2288 int ret, ret2;
2289 struct uverbs_req_iter iter;
2290
2291 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2292 if (ret)
2293 return ret;
2294
2295 wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size,
2296 cmd.sge_count);
2297 if (IS_ERR(wr))
2298 return PTR_ERR(wr);
2299
2300 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2301 if (!qp) {
2302 ret = -EINVAL;
2303 goto out;
2304 }
2305
2306 resp.bad_wr = 0;
2307 ret = qp->device->ops.post_recv(qp->real_qp, wr, &bad_wr);
2308
2309 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2310 UVERBS_LOOKUP_READ);
2311 if (ret) {
2312 for (next = wr; next; next = next->next) {
2313 ++resp.bad_wr;
2314 if (next == bad_wr)
2315 break;
2316 }
2317 }
2318
2319 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2320 if (ret2)
2321 ret = ret2;
2322out:
2323 while (wr) {
2324 next = wr->next;
2325 kfree(wr);
2326 wr = next;
2327 }
2328
2329 return ret;
2330}
2331
2332static int ib_uverbs_post_srq_recv(struct uverbs_attr_bundle *attrs)
2333{
2334 struct ib_uverbs_post_srq_recv cmd;
2335 struct ib_uverbs_post_srq_recv_resp resp;
2336 struct ib_recv_wr *wr, *next;
2337 const struct ib_recv_wr *bad_wr;
2338 struct ib_srq *srq;
2339 int ret, ret2;
2340 struct uverbs_req_iter iter;
2341
2342 ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
2343 if (ret)
2344 return ret;
2345
2346 wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size,
2347 cmd.sge_count);
2348 if (IS_ERR(wr))
2349 return PTR_ERR(wr);
2350
2351 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
2352 if (!srq) {
2353 ret = -EINVAL;
2354 goto out;
2355 }
2356
2357 resp.bad_wr = 0;
2358 ret = srq->device->ops.post_srq_recv(srq, wr, &bad_wr);
2359
2360 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
2361 UVERBS_LOOKUP_READ);
2362
2363 if (ret)
2364 for (next = wr; next; next = next->next) {
2365 ++resp.bad_wr;
2366 if (next == bad_wr)
2367 break;
2368 }
2369
2370 ret2 = uverbs_response(attrs, &resp, sizeof(resp));
2371 if (ret2)
2372 ret = ret2;
2373
2374out:
2375 while (wr) {
2376 next = wr->next;
2377 kfree(wr);
2378 wr = next;
2379 }
2380
2381 return ret;
2382}
2383
2384static int ib_uverbs_create_ah(struct uverbs_attr_bundle *attrs)
2385{
2386 struct ib_uverbs_create_ah cmd;
2387 struct ib_uverbs_create_ah_resp resp;
2388 struct ib_uobject *uobj;
2389 struct ib_pd *pd;
2390 struct ib_ah *ah;
2391 struct rdma_ah_attr attr = {};
2392 int ret;
2393 struct ib_device *ib_dev;
2394
2395 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2396 if (ret)
2397 return ret;
2398
2399 uobj = uobj_alloc(UVERBS_OBJECT_AH, attrs, &ib_dev);
2400 if (IS_ERR(uobj))
2401 return PTR_ERR(uobj);
2402
2403 if (!rdma_is_port_valid(ib_dev, cmd.attr.port_num)) {
2404 ret = -EINVAL;
2405 goto err;
2406 }
2407
2408 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
2409 if (!pd) {
2410 ret = -EINVAL;
2411 goto err;
2412 }
2413
2414 attr.type = rdma_ah_find_type(ib_dev, cmd.attr.port_num);
2415 rdma_ah_set_make_grd(&attr, false);
2416 rdma_ah_set_dlid(&attr, cmd.attr.dlid);
2417 rdma_ah_set_sl(&attr, cmd.attr.sl);
2418 rdma_ah_set_path_bits(&attr, cmd.attr.src_path_bits);
2419 rdma_ah_set_static_rate(&attr, cmd.attr.static_rate);
2420 rdma_ah_set_port_num(&attr, cmd.attr.port_num);
2421
2422 if (cmd.attr.is_global) {
2423 rdma_ah_set_grh(&attr, NULL, cmd.attr.grh.flow_label,
2424 cmd.attr.grh.sgid_index,
2425 cmd.attr.grh.hop_limit,
2426 cmd.attr.grh.traffic_class);
2427 rdma_ah_set_dgid_raw(&attr, cmd.attr.grh.dgid);
2428 } else {
2429 rdma_ah_set_ah_flags(&attr, 0);
2430 }
2431
2432 ah = rdma_create_user_ah(pd, &attr, &attrs->driver_udata);
2433 if (IS_ERR(ah)) {
2434 ret = PTR_ERR(ah);
2435 goto err_put;
2436 }
2437
2438 ah->uobject = uobj;
2439 uobj->user_handle = cmd.user_handle;
2440 uobj->object = ah;
2441 uobj_put_obj_read(pd);
2442 uobj_finalize_uobj_create(uobj, attrs);
2443
2444 resp.ah_handle = uobj->id;
2445 return uverbs_response(attrs, &resp, sizeof(resp));
2446
2447err_put:
2448 uobj_put_obj_read(pd);
2449err:
2450 uobj_alloc_abort(uobj, attrs);
2451 return ret;
2452}
2453
2454static int ib_uverbs_destroy_ah(struct uverbs_attr_bundle *attrs)
2455{
2456 struct ib_uverbs_destroy_ah cmd;
2457 int ret;
2458
2459 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2460 if (ret)
2461 return ret;
2462
2463 return uobj_perform_destroy(UVERBS_OBJECT_AH, cmd.ah_handle, attrs);
2464}
2465
2466static int ib_uverbs_attach_mcast(struct uverbs_attr_bundle *attrs)
2467{
2468 struct ib_uverbs_attach_mcast cmd;
2469 struct ib_qp *qp;
2470 struct ib_uqp_object *obj;
2471 struct ib_uverbs_mcast_entry *mcast;
2472 int ret;
2473
2474 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2475 if (ret)
2476 return ret;
2477
2478 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2479 if (!qp)
2480 return -EINVAL;
2481
2482 obj = qp->uobject;
2483
2484 mutex_lock(&obj->mcast_lock);
2485 list_for_each_entry(mcast, &obj->mcast_list, list)
2486 if (cmd.mlid == mcast->lid &&
2487 !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) {
2488 ret = 0;
2489 goto out_put;
2490 }
2491
2492 mcast = kmalloc(sizeof *mcast, GFP_KERNEL);
2493 if (!mcast) {
2494 ret = -ENOMEM;
2495 goto out_put;
2496 }
2497
2498 mcast->lid = cmd.mlid;
2499 memcpy(mcast->gid.raw, cmd.gid, sizeof mcast->gid.raw);
2500
2501 ret = ib_attach_mcast(qp, &mcast->gid, cmd.mlid);
2502 if (!ret)
2503 list_add_tail(&mcast->list, &obj->mcast_list);
2504 else
2505 kfree(mcast);
2506
2507out_put:
2508 mutex_unlock(&obj->mcast_lock);
2509 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2510 UVERBS_LOOKUP_READ);
2511
2512 return ret;
2513}
2514
2515static int ib_uverbs_detach_mcast(struct uverbs_attr_bundle *attrs)
2516{
2517 struct ib_uverbs_detach_mcast cmd;
2518 struct ib_uqp_object *obj;
2519 struct ib_qp *qp;
2520 struct ib_uverbs_mcast_entry *mcast;
2521 int ret;
2522 bool found = false;
2523
2524 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2525 if (ret)
2526 return ret;
2527
2528 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
2529 if (!qp)
2530 return -EINVAL;
2531
2532 obj = qp->uobject;
2533 mutex_lock(&obj->mcast_lock);
2534
2535 list_for_each_entry(mcast, &obj->mcast_list, list)
2536 if (cmd.mlid == mcast->lid &&
2537 !memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) {
2538 list_del(&mcast->list);
2539 kfree(mcast);
2540 found = true;
2541 break;
2542 }
2543
2544 if (!found) {
2545 ret = -EINVAL;
2546 goto out_put;
2547 }
2548
2549 ret = ib_detach_mcast(qp, (union ib_gid *)cmd.gid, cmd.mlid);
2550
2551out_put:
2552 mutex_unlock(&obj->mcast_lock);
2553 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
2554 UVERBS_LOOKUP_READ);
2555 return ret;
2556}
2557
2558struct ib_uflow_resources *flow_resources_alloc(size_t num_specs)
2559{
2560 struct ib_uflow_resources *resources;
2561
2562 resources = kzalloc(sizeof(*resources), GFP_KERNEL);
2563
2564 if (!resources)
2565 return NULL;
2566
2567 if (!num_specs)
2568 goto out;
2569
2570 resources->counters =
2571 kcalloc(num_specs, sizeof(*resources->counters), GFP_KERNEL);
2572 resources->collection =
2573 kcalloc(num_specs, sizeof(*resources->collection), GFP_KERNEL);
2574
2575 if (!resources->counters || !resources->collection)
2576 goto err;
2577
2578out:
2579 resources->max = num_specs;
2580 return resources;
2581
2582err:
2583 kfree(resources->counters);
2584 kfree(resources);
2585
2586 return NULL;
2587}
2588EXPORT_SYMBOL(flow_resources_alloc);
2589
2590void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res)
2591{
2592 unsigned int i;
2593
2594 if (!uflow_res)
2595 return;
2596
2597 for (i = 0; i < uflow_res->collection_num; i++)
2598 atomic_dec(&uflow_res->collection[i]->usecnt);
2599
2600 for (i = 0; i < uflow_res->counters_num; i++)
2601 atomic_dec(&uflow_res->counters[i]->usecnt);
2602
2603 kfree(uflow_res->collection);
2604 kfree(uflow_res->counters);
2605 kfree(uflow_res);
2606}
2607EXPORT_SYMBOL(ib_uverbs_flow_resources_free);
2608
2609void flow_resources_add(struct ib_uflow_resources *uflow_res,
2610 enum ib_flow_spec_type type,
2611 void *ibobj)
2612{
2613 WARN_ON(uflow_res->num >= uflow_res->max);
2614
2615 switch (type) {
2616 case IB_FLOW_SPEC_ACTION_HANDLE:
2617 atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt);
2618 uflow_res->collection[uflow_res->collection_num++] =
2619 (struct ib_flow_action *)ibobj;
2620 break;
2621 case IB_FLOW_SPEC_ACTION_COUNT:
2622 atomic_inc(&((struct ib_counters *)ibobj)->usecnt);
2623 uflow_res->counters[uflow_res->counters_num++] =
2624 (struct ib_counters *)ibobj;
2625 break;
2626 default:
2627 WARN_ON(1);
2628 }
2629
2630 uflow_res->num++;
2631}
2632EXPORT_SYMBOL(flow_resources_add);
2633
2634static int kern_spec_to_ib_spec_action(struct uverbs_attr_bundle *attrs,
2635 struct ib_uverbs_flow_spec *kern_spec,
2636 union ib_flow_spec *ib_spec,
2637 struct ib_uflow_resources *uflow_res)
2638{
2639 ib_spec->type = kern_spec->type;
2640 switch (ib_spec->type) {
2641 case IB_FLOW_SPEC_ACTION_TAG:
2642 if (kern_spec->flow_tag.size !=
2643 sizeof(struct ib_uverbs_flow_spec_action_tag))
2644 return -EINVAL;
2645
2646 ib_spec->flow_tag.size = sizeof(struct ib_flow_spec_action_tag);
2647 ib_spec->flow_tag.tag_id = kern_spec->flow_tag.tag_id;
2648 break;
2649 case IB_FLOW_SPEC_ACTION_DROP:
2650 if (kern_spec->drop.size !=
2651 sizeof(struct ib_uverbs_flow_spec_action_drop))
2652 return -EINVAL;
2653
2654 ib_spec->drop.size = sizeof(struct ib_flow_spec_action_drop);
2655 break;
2656 case IB_FLOW_SPEC_ACTION_HANDLE:
2657 if (kern_spec->action.size !=
2658 sizeof(struct ib_uverbs_flow_spec_action_handle))
2659 return -EOPNOTSUPP;
2660 ib_spec->action.act = uobj_get_obj_read(flow_action,
2661 UVERBS_OBJECT_FLOW_ACTION,
2662 kern_spec->action.handle,
2663 attrs);
2664 if (!ib_spec->action.act)
2665 return -EINVAL;
2666 ib_spec->action.size =
2667 sizeof(struct ib_flow_spec_action_handle);
2668 flow_resources_add(uflow_res,
2669 IB_FLOW_SPEC_ACTION_HANDLE,
2670 ib_spec->action.act);
2671 uobj_put_obj_read(ib_spec->action.act);
2672 break;
2673 case IB_FLOW_SPEC_ACTION_COUNT:
2674 if (kern_spec->flow_count.size !=
2675 sizeof(struct ib_uverbs_flow_spec_action_count))
2676 return -EINVAL;
2677 ib_spec->flow_count.counters =
2678 uobj_get_obj_read(counters,
2679 UVERBS_OBJECT_COUNTERS,
2680 kern_spec->flow_count.handle,
2681 attrs);
2682 if (!ib_spec->flow_count.counters)
2683 return -EINVAL;
2684 ib_spec->flow_count.size =
2685 sizeof(struct ib_flow_spec_action_count);
2686 flow_resources_add(uflow_res,
2687 IB_FLOW_SPEC_ACTION_COUNT,
2688 ib_spec->flow_count.counters);
2689 uobj_put_obj_read(ib_spec->flow_count.counters);
2690 break;
2691 default:
2692 return -EINVAL;
2693 }
2694 return 0;
2695}
2696
2697static ssize_t spec_filter_size(const void *kern_spec_filter, u16 kern_filter_size,
2698 u16 ib_real_filter_sz)
2699{
2700
2701
2702
2703
2704
2705 if (kern_filter_size > ib_real_filter_sz) {
2706 if (memchr_inv(kern_spec_filter +
2707 ib_real_filter_sz, 0,
2708 kern_filter_size - ib_real_filter_sz))
2709 return -EINVAL;
2710 return ib_real_filter_sz;
2711 }
2712 return kern_filter_size;
2713}
2714
2715int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type,
2716 const void *kern_spec_mask,
2717 const void *kern_spec_val,
2718 size_t kern_filter_sz,
2719 union ib_flow_spec *ib_spec)
2720{
2721 ssize_t actual_filter_sz;
2722 ssize_t ib_filter_sz;
2723
2724
2725 if (kern_filter_sz != ALIGN(kern_filter_sz, 4))
2726 return -EINVAL;
2727
2728 ib_spec->type = type;
2729
2730 if (ib_spec->type == (IB_FLOW_SPEC_INNER | IB_FLOW_SPEC_VXLAN_TUNNEL))
2731 return -EINVAL;
2732
2733 switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) {
2734 case IB_FLOW_SPEC_ETH:
2735 ib_filter_sz = offsetof(struct ib_flow_eth_filter, real_sz);
2736 actual_filter_sz = spec_filter_size(kern_spec_mask,
2737 kern_filter_sz,
2738 ib_filter_sz);
2739 if (actual_filter_sz <= 0)
2740 return -EINVAL;
2741 ib_spec->size = sizeof(struct ib_flow_spec_eth);
2742 memcpy(&ib_spec->eth.val, kern_spec_val, actual_filter_sz);
2743 memcpy(&ib_spec->eth.mask, kern_spec_mask, actual_filter_sz);
2744 break;
2745 case IB_FLOW_SPEC_IPV4:
2746 ib_filter_sz = offsetof(struct ib_flow_ipv4_filter, real_sz);
2747 actual_filter_sz = spec_filter_size(kern_spec_mask,
2748 kern_filter_sz,
2749 ib_filter_sz);
2750 if (actual_filter_sz <= 0)
2751 return -EINVAL;
2752 ib_spec->size = sizeof(struct ib_flow_spec_ipv4);
2753 memcpy(&ib_spec->ipv4.val, kern_spec_val, actual_filter_sz);
2754 memcpy(&ib_spec->ipv4.mask, kern_spec_mask, actual_filter_sz);
2755 break;
2756 case IB_FLOW_SPEC_IPV6:
2757 ib_filter_sz = offsetof(struct ib_flow_ipv6_filter, real_sz);
2758 actual_filter_sz = spec_filter_size(kern_spec_mask,
2759 kern_filter_sz,
2760 ib_filter_sz);
2761 if (actual_filter_sz <= 0)
2762 return -EINVAL;
2763 ib_spec->size = sizeof(struct ib_flow_spec_ipv6);
2764 memcpy(&ib_spec->ipv6.val, kern_spec_val, actual_filter_sz);
2765 memcpy(&ib_spec->ipv6.mask, kern_spec_mask, actual_filter_sz);
2766
2767 if ((ntohl(ib_spec->ipv6.mask.flow_label)) >= BIT(20) ||
2768 (ntohl(ib_spec->ipv6.val.flow_label)) >= BIT(20))
2769 return -EINVAL;
2770 break;
2771 case IB_FLOW_SPEC_TCP:
2772 case IB_FLOW_SPEC_UDP:
2773 ib_filter_sz = offsetof(struct ib_flow_tcp_udp_filter, real_sz);
2774 actual_filter_sz = spec_filter_size(kern_spec_mask,
2775 kern_filter_sz,
2776 ib_filter_sz);
2777 if (actual_filter_sz <= 0)
2778 return -EINVAL;
2779 ib_spec->size = sizeof(struct ib_flow_spec_tcp_udp);
2780 memcpy(&ib_spec->tcp_udp.val, kern_spec_val, actual_filter_sz);
2781 memcpy(&ib_spec->tcp_udp.mask, kern_spec_mask, actual_filter_sz);
2782 break;
2783 case IB_FLOW_SPEC_VXLAN_TUNNEL:
2784 ib_filter_sz = offsetof(struct ib_flow_tunnel_filter, real_sz);
2785 actual_filter_sz = spec_filter_size(kern_spec_mask,
2786 kern_filter_sz,
2787 ib_filter_sz);
2788 if (actual_filter_sz <= 0)
2789 return -EINVAL;
2790 ib_spec->tunnel.size = sizeof(struct ib_flow_spec_tunnel);
2791 memcpy(&ib_spec->tunnel.val, kern_spec_val, actual_filter_sz);
2792 memcpy(&ib_spec->tunnel.mask, kern_spec_mask, actual_filter_sz);
2793
2794 if ((ntohl(ib_spec->tunnel.mask.tunnel_id)) >= BIT(24) ||
2795 (ntohl(ib_spec->tunnel.val.tunnel_id)) >= BIT(24))
2796 return -EINVAL;
2797 break;
2798 case IB_FLOW_SPEC_ESP:
2799 ib_filter_sz = offsetof(struct ib_flow_esp_filter, real_sz);
2800 actual_filter_sz = spec_filter_size(kern_spec_mask,
2801 kern_filter_sz,
2802 ib_filter_sz);
2803 if (actual_filter_sz <= 0)
2804 return -EINVAL;
2805 ib_spec->esp.size = sizeof(struct ib_flow_spec_esp);
2806 memcpy(&ib_spec->esp.val, kern_spec_val, actual_filter_sz);
2807 memcpy(&ib_spec->esp.mask, kern_spec_mask, actual_filter_sz);
2808 break;
2809 case IB_FLOW_SPEC_GRE:
2810 ib_filter_sz = offsetof(struct ib_flow_gre_filter, real_sz);
2811 actual_filter_sz = spec_filter_size(kern_spec_mask,
2812 kern_filter_sz,
2813 ib_filter_sz);
2814 if (actual_filter_sz <= 0)
2815 return -EINVAL;
2816 ib_spec->gre.size = sizeof(struct ib_flow_spec_gre);
2817 memcpy(&ib_spec->gre.val, kern_spec_val, actual_filter_sz);
2818 memcpy(&ib_spec->gre.mask, kern_spec_mask, actual_filter_sz);
2819 break;
2820 case IB_FLOW_SPEC_MPLS:
2821 ib_filter_sz = offsetof(struct ib_flow_mpls_filter, real_sz);
2822 actual_filter_sz = spec_filter_size(kern_spec_mask,
2823 kern_filter_sz,
2824 ib_filter_sz);
2825 if (actual_filter_sz <= 0)
2826 return -EINVAL;
2827 ib_spec->mpls.size = sizeof(struct ib_flow_spec_mpls);
2828 memcpy(&ib_spec->mpls.val, kern_spec_val, actual_filter_sz);
2829 memcpy(&ib_spec->mpls.mask, kern_spec_mask, actual_filter_sz);
2830 break;
2831 default:
2832 return -EINVAL;
2833 }
2834 return 0;
2835}
2836
2837static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec *kern_spec,
2838 union ib_flow_spec *ib_spec)
2839{
2840 size_t kern_filter_sz;
2841 void *kern_spec_mask;
2842 void *kern_spec_val;
2843
2844 if (check_sub_overflow((size_t)kern_spec->hdr.size,
2845 sizeof(struct ib_uverbs_flow_spec_hdr),
2846 &kern_filter_sz))
2847 return -EINVAL;
2848
2849 kern_filter_sz /= 2;
2850
2851 kern_spec_val = (void *)kern_spec +
2852 sizeof(struct ib_uverbs_flow_spec_hdr);
2853 kern_spec_mask = kern_spec_val + kern_filter_sz;
2854
2855 return ib_uverbs_kern_spec_to_ib_spec_filter(kern_spec->type,
2856 kern_spec_mask,
2857 kern_spec_val,
2858 kern_filter_sz, ib_spec);
2859}
2860
2861static int kern_spec_to_ib_spec(struct uverbs_attr_bundle *attrs,
2862 struct ib_uverbs_flow_spec *kern_spec,
2863 union ib_flow_spec *ib_spec,
2864 struct ib_uflow_resources *uflow_res)
2865{
2866 if (kern_spec->reserved)
2867 return -EINVAL;
2868
2869 if (kern_spec->type >= IB_FLOW_SPEC_ACTION_TAG)
2870 return kern_spec_to_ib_spec_action(attrs, kern_spec, ib_spec,
2871 uflow_res);
2872 else
2873 return kern_spec_to_ib_spec_filter(kern_spec, ib_spec);
2874}
2875
2876static int ib_uverbs_ex_create_wq(struct uverbs_attr_bundle *attrs)
2877{
2878 struct ib_uverbs_ex_create_wq cmd;
2879 struct ib_uverbs_ex_create_wq_resp resp = {};
2880 struct ib_uwq_object *obj;
2881 int err = 0;
2882 struct ib_cq *cq;
2883 struct ib_pd *pd;
2884 struct ib_wq *wq;
2885 struct ib_wq_init_attr wq_init_attr = {};
2886 struct ib_device *ib_dev;
2887
2888 err = uverbs_request(attrs, &cmd, sizeof(cmd));
2889 if (err)
2890 return err;
2891
2892 if (cmd.comp_mask)
2893 return -EOPNOTSUPP;
2894
2895 obj = (struct ib_uwq_object *)uobj_alloc(UVERBS_OBJECT_WQ, attrs,
2896 &ib_dev);
2897 if (IS_ERR(obj))
2898 return PTR_ERR(obj);
2899
2900 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs);
2901 if (!pd) {
2902 err = -EINVAL;
2903 goto err_uobj;
2904 }
2905
2906 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
2907 if (!cq) {
2908 err = -EINVAL;
2909 goto err_put_pd;
2910 }
2911
2912 wq_init_attr.cq = cq;
2913 wq_init_attr.max_sge = cmd.max_sge;
2914 wq_init_attr.max_wr = cmd.max_wr;
2915 wq_init_attr.wq_type = cmd.wq_type;
2916 wq_init_attr.event_handler = ib_uverbs_wq_event_handler;
2917 wq_init_attr.create_flags = cmd.create_flags;
2918 INIT_LIST_HEAD(&obj->uevent.event_list);
2919 obj->uevent.uobject.user_handle = cmd.user_handle;
2920
2921 wq = pd->device->ops.create_wq(pd, &wq_init_attr, &attrs->driver_udata);
2922 if (IS_ERR(wq)) {
2923 err = PTR_ERR(wq);
2924 goto err_put_cq;
2925 }
2926
2927 wq->uobject = obj;
2928 obj->uevent.uobject.object = wq;
2929 wq->wq_type = wq_init_attr.wq_type;
2930 wq->cq = cq;
2931 wq->pd = pd;
2932 wq->device = pd->device;
2933 atomic_set(&wq->usecnt, 0);
2934 atomic_inc(&pd->usecnt);
2935 atomic_inc(&cq->usecnt);
2936 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
2937 if (obj->uevent.event_file)
2938 uverbs_uobject_get(&obj->uevent.event_file->uobj);
2939
2940 uobj_put_obj_read(pd);
2941 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
2942 UVERBS_LOOKUP_READ);
2943 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
2944
2945 resp.wq_handle = obj->uevent.uobject.id;
2946 resp.max_sge = wq_init_attr.max_sge;
2947 resp.max_wr = wq_init_attr.max_wr;
2948 resp.wqn = wq->wq_num;
2949 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
2950 return uverbs_response(attrs, &resp, sizeof(resp));
2951
2952err_put_cq:
2953 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
2954 UVERBS_LOOKUP_READ);
2955err_put_pd:
2956 uobj_put_obj_read(pd);
2957err_uobj:
2958 uobj_alloc_abort(&obj->uevent.uobject, attrs);
2959
2960 return err;
2961}
2962
2963static int ib_uverbs_ex_destroy_wq(struct uverbs_attr_bundle *attrs)
2964{
2965 struct ib_uverbs_ex_destroy_wq cmd;
2966 struct ib_uverbs_ex_destroy_wq_resp resp = {};
2967 struct ib_uobject *uobj;
2968 struct ib_uwq_object *obj;
2969 int ret;
2970
2971 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2972 if (ret)
2973 return ret;
2974
2975 if (cmd.comp_mask)
2976 return -EOPNOTSUPP;
2977
2978 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
2979 uobj = uobj_get_destroy(UVERBS_OBJECT_WQ, cmd.wq_handle, attrs);
2980 if (IS_ERR(uobj))
2981 return PTR_ERR(uobj);
2982
2983 obj = container_of(uobj, struct ib_uwq_object, uevent.uobject);
2984 resp.events_reported = obj->uevent.events_reported;
2985
2986 uobj_put_destroy(uobj);
2987
2988 return uverbs_response(attrs, &resp, sizeof(resp));
2989}
2990
2991static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs)
2992{
2993 struct ib_uverbs_ex_modify_wq cmd;
2994 struct ib_wq *wq;
2995 struct ib_wq_attr wq_attr = {};
2996 int ret;
2997
2998 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
2999 if (ret)
3000 return ret;
3001
3002 if (!cmd.attr_mask)
3003 return -EINVAL;
3004
3005 if (cmd.attr_mask > (IB_WQ_STATE | IB_WQ_CUR_STATE | IB_WQ_FLAGS))
3006 return -EINVAL;
3007
3008 wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, cmd.wq_handle, attrs);
3009 if (!wq)
3010 return -EINVAL;
3011
3012 if (cmd.attr_mask & IB_WQ_FLAGS) {
3013 wq_attr.flags = cmd.flags;
3014 wq_attr.flags_mask = cmd.flags_mask;
3015 }
3016
3017 if (cmd.attr_mask & IB_WQ_CUR_STATE) {
3018 if (cmd.curr_wq_state > IB_WQS_ERR)
3019 return -EINVAL;
3020
3021 wq_attr.curr_wq_state = cmd.curr_wq_state;
3022 } else {
3023 wq_attr.curr_wq_state = wq->state;
3024 }
3025
3026 if (cmd.attr_mask & IB_WQ_STATE) {
3027 if (cmd.wq_state > IB_WQS_ERR)
3028 return -EINVAL;
3029
3030 wq_attr.wq_state = cmd.wq_state;
3031 } else {
3032 wq_attr.wq_state = wq_attr.curr_wq_state;
3033 }
3034
3035 ret = wq->device->ops.modify_wq(wq, &wq_attr, cmd.attr_mask,
3036 &attrs->driver_udata);
3037 rdma_lookup_put_uobject(&wq->uobject->uevent.uobject,
3038 UVERBS_LOOKUP_READ);
3039 return ret;
3040}
3041
3042static int ib_uverbs_ex_create_rwq_ind_table(struct uverbs_attr_bundle *attrs)
3043{
3044 struct ib_uverbs_ex_create_rwq_ind_table cmd;
3045 struct ib_uverbs_ex_create_rwq_ind_table_resp resp = {};
3046 struct ib_uobject *uobj;
3047 int err;
3048 struct ib_rwq_ind_table_init_attr init_attr = {};
3049 struct ib_rwq_ind_table *rwq_ind_tbl;
3050 struct ib_wq **wqs = NULL;
3051 u32 *wqs_handles = NULL;
3052 struct ib_wq *wq = NULL;
3053 int i, num_read_wqs;
3054 u32 num_wq_handles;
3055 struct uverbs_req_iter iter;
3056 struct ib_device *ib_dev;
3057
3058 err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
3059 if (err)
3060 return err;
3061
3062 if (cmd.comp_mask)
3063 return -EOPNOTSUPP;
3064
3065 if (cmd.log_ind_tbl_size > IB_USER_VERBS_MAX_LOG_IND_TBL_SIZE)
3066 return -EINVAL;
3067
3068 num_wq_handles = 1 << cmd.log_ind_tbl_size;
3069 wqs_handles = kcalloc(num_wq_handles, sizeof(*wqs_handles),
3070 GFP_KERNEL);
3071 if (!wqs_handles)
3072 return -ENOMEM;
3073
3074 err = uverbs_request_next(&iter, wqs_handles,
3075 num_wq_handles * sizeof(__u32));
3076 if (err)
3077 goto err_free;
3078
3079 err = uverbs_request_finish(&iter);
3080 if (err)
3081 goto err_free;
3082
3083 wqs = kcalloc(num_wq_handles, sizeof(*wqs), GFP_KERNEL);
3084 if (!wqs) {
3085 err = -ENOMEM;
3086 goto err_free;
3087 }
3088
3089 for (num_read_wqs = 0; num_read_wqs < num_wq_handles;
3090 num_read_wqs++) {
3091 wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ,
3092 wqs_handles[num_read_wqs], attrs);
3093 if (!wq) {
3094 err = -EINVAL;
3095 goto put_wqs;
3096 }
3097
3098 wqs[num_read_wqs] = wq;
3099 atomic_inc(&wqs[num_read_wqs]->usecnt);
3100 }
3101
3102 uobj = uobj_alloc(UVERBS_OBJECT_RWQ_IND_TBL, attrs, &ib_dev);
3103 if (IS_ERR(uobj)) {
3104 err = PTR_ERR(uobj);
3105 goto put_wqs;
3106 }
3107
3108 rwq_ind_tbl = rdma_zalloc_drv_obj(ib_dev, ib_rwq_ind_table);
3109 if (!rwq_ind_tbl) {
3110 err = -ENOMEM;
3111 goto err_uobj;
3112 }
3113
3114 init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size;
3115 init_attr.ind_tbl = wqs;
3116
3117 rwq_ind_tbl->ind_tbl = wqs;
3118 rwq_ind_tbl->log_ind_tbl_size = init_attr.log_ind_tbl_size;
3119 rwq_ind_tbl->uobject = uobj;
3120 uobj->object = rwq_ind_tbl;
3121 rwq_ind_tbl->device = ib_dev;
3122 atomic_set(&rwq_ind_tbl->usecnt, 0);
3123
3124 err = ib_dev->ops.create_rwq_ind_table(rwq_ind_tbl, &init_attr,
3125 &attrs->driver_udata);
3126 if (err)
3127 goto err_create;
3128
3129 for (i = 0; i < num_wq_handles; i++)
3130 rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject,
3131 UVERBS_LOOKUP_READ);
3132 kfree(wqs_handles);
3133 uobj_finalize_uobj_create(uobj, attrs);
3134
3135 resp.ind_tbl_handle = uobj->id;
3136 resp.ind_tbl_num = rwq_ind_tbl->ind_tbl_num;
3137 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
3138 return uverbs_response(attrs, &resp, sizeof(resp));
3139
3140err_create:
3141 kfree(rwq_ind_tbl);
3142err_uobj:
3143 uobj_alloc_abort(uobj, attrs);
3144put_wqs:
3145 for (i = 0; i < num_read_wqs; i++) {
3146 rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject,
3147 UVERBS_LOOKUP_READ);
3148 atomic_dec(&wqs[i]->usecnt);
3149 }
3150err_free:
3151 kfree(wqs_handles);
3152 kfree(wqs);
3153 return err;
3154}
3155
3156static int ib_uverbs_ex_destroy_rwq_ind_table(struct uverbs_attr_bundle *attrs)
3157{
3158 struct ib_uverbs_ex_destroy_rwq_ind_table cmd;
3159 int ret;
3160
3161 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3162 if (ret)
3163 return ret;
3164
3165 if (cmd.comp_mask)
3166 return -EOPNOTSUPP;
3167
3168 return uobj_perform_destroy(UVERBS_OBJECT_RWQ_IND_TBL,
3169 cmd.ind_tbl_handle, attrs);
3170}
3171
3172static int ib_uverbs_ex_create_flow(struct uverbs_attr_bundle *attrs)
3173{
3174 struct ib_uverbs_create_flow cmd;
3175 struct ib_uverbs_create_flow_resp resp = {};
3176 struct ib_uobject *uobj;
3177 struct ib_flow *flow_id;
3178 struct ib_uverbs_flow_attr *kern_flow_attr;
3179 struct ib_flow_attr *flow_attr;
3180 struct ib_qp *qp;
3181 struct ib_uflow_resources *uflow_res;
3182 struct ib_uverbs_flow_spec_hdr *kern_spec;
3183 struct uverbs_req_iter iter;
3184 int err;
3185 void *ib_spec;
3186 int i;
3187 struct ib_device *ib_dev;
3188
3189 err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd));
3190 if (err)
3191 return err;
3192
3193 if (cmd.comp_mask)
3194 return -EINVAL;
3195
3196 if (!capable(CAP_NET_RAW))
3197 return -EPERM;
3198
3199 if (cmd.flow_attr.flags >= IB_FLOW_ATTR_FLAGS_RESERVED)
3200 return -EINVAL;
3201
3202 if ((cmd.flow_attr.flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
3203 ((cmd.flow_attr.type == IB_FLOW_ATTR_ALL_DEFAULT) ||
3204 (cmd.flow_attr.type == IB_FLOW_ATTR_MC_DEFAULT)))
3205 return -EINVAL;
3206
3207 if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS)
3208 return -EINVAL;
3209
3210 if (cmd.flow_attr.size >
3211 (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec)))
3212 return -EINVAL;
3213
3214 if (cmd.flow_attr.reserved[0] ||
3215 cmd.flow_attr.reserved[1])
3216 return -EINVAL;
3217
3218 if (cmd.flow_attr.num_of_specs) {
3219 kern_flow_attr = kmalloc(sizeof(*kern_flow_attr) + cmd.flow_attr.size,
3220 GFP_KERNEL);
3221 if (!kern_flow_attr)
3222 return -ENOMEM;
3223
3224 *kern_flow_attr = cmd.flow_attr;
3225 err = uverbs_request_next(&iter, &kern_flow_attr->flow_specs,
3226 cmd.flow_attr.size);
3227 if (err)
3228 goto err_free_attr;
3229 } else {
3230 kern_flow_attr = &cmd.flow_attr;
3231 }
3232
3233 err = uverbs_request_finish(&iter);
3234 if (err)
3235 goto err_free_attr;
3236
3237 uobj = uobj_alloc(UVERBS_OBJECT_FLOW, attrs, &ib_dev);
3238 if (IS_ERR(uobj)) {
3239 err = PTR_ERR(uobj);
3240 goto err_free_attr;
3241 }
3242
3243 if (!rdma_is_port_valid(uobj->context->device, cmd.flow_attr.port)) {
3244 err = -EINVAL;
3245 goto err_uobj;
3246 }
3247
3248 qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs);
3249 if (!qp) {
3250 err = -EINVAL;
3251 goto err_uobj;
3252 }
3253
3254 if (qp->qp_type != IB_QPT_UD && qp->qp_type != IB_QPT_RAW_PACKET) {
3255 err = -EINVAL;
3256 goto err_put;
3257 }
3258
3259 flow_attr = kzalloc(struct_size(flow_attr, flows,
3260 cmd.flow_attr.num_of_specs), GFP_KERNEL);
3261 if (!flow_attr) {
3262 err = -ENOMEM;
3263 goto err_put;
3264 }
3265 uflow_res = flow_resources_alloc(cmd.flow_attr.num_of_specs);
3266 if (!uflow_res) {
3267 err = -ENOMEM;
3268 goto err_free_flow_attr;
3269 }
3270
3271 flow_attr->type = kern_flow_attr->type;
3272 flow_attr->priority = kern_flow_attr->priority;
3273 flow_attr->num_of_specs = kern_flow_attr->num_of_specs;
3274 flow_attr->port = kern_flow_attr->port;
3275 flow_attr->flags = kern_flow_attr->flags;
3276 flow_attr->size = sizeof(*flow_attr);
3277
3278 kern_spec = kern_flow_attr->flow_specs;
3279 ib_spec = flow_attr + 1;
3280 for (i = 0; i < flow_attr->num_of_specs &&
3281 cmd.flow_attr.size >= sizeof(*kern_spec) &&
3282 cmd.flow_attr.size >= kern_spec->size;
3283 i++) {
3284 err = kern_spec_to_ib_spec(
3285 attrs, (struct ib_uverbs_flow_spec *)kern_spec,
3286 ib_spec, uflow_res);
3287 if (err)
3288 goto err_free;
3289
3290 flow_attr->size +=
3291 ((union ib_flow_spec *) ib_spec)->size;
3292 cmd.flow_attr.size -= kern_spec->size;
3293 kern_spec = ((void *)kern_spec) + kern_spec->size;
3294 ib_spec += ((union ib_flow_spec *) ib_spec)->size;
3295 }
3296 if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) {
3297 pr_warn("create flow failed, flow %d: %u bytes left from uverb cmd\n",
3298 i, cmd.flow_attr.size);
3299 err = -EINVAL;
3300 goto err_free;
3301 }
3302
3303 flow_id = qp->device->ops.create_flow(qp, flow_attr,
3304 &attrs->driver_udata);
3305
3306 if (IS_ERR(flow_id)) {
3307 err = PTR_ERR(flow_id);
3308 goto err_free;
3309 }
3310
3311 ib_set_flow(uobj, flow_id, qp, qp->device, uflow_res);
3312
3313 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
3314 UVERBS_LOOKUP_READ);
3315 kfree(flow_attr);
3316
3317 if (cmd.flow_attr.num_of_specs)
3318 kfree(kern_flow_attr);
3319 uobj_finalize_uobj_create(uobj, attrs);
3320
3321 resp.flow_handle = uobj->id;
3322 return uverbs_response(attrs, &resp, sizeof(resp));
3323
3324err_free:
3325 ib_uverbs_flow_resources_free(uflow_res);
3326err_free_flow_attr:
3327 kfree(flow_attr);
3328err_put:
3329 rdma_lookup_put_uobject(&qp->uobject->uevent.uobject,
3330 UVERBS_LOOKUP_READ);
3331err_uobj:
3332 uobj_alloc_abort(uobj, attrs);
3333err_free_attr:
3334 if (cmd.flow_attr.num_of_specs)
3335 kfree(kern_flow_attr);
3336 return err;
3337}
3338
3339static int ib_uverbs_ex_destroy_flow(struct uverbs_attr_bundle *attrs)
3340{
3341 struct ib_uverbs_destroy_flow cmd;
3342 int ret;
3343
3344 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3345 if (ret)
3346 return ret;
3347
3348 if (cmd.comp_mask)
3349 return -EINVAL;
3350
3351 return uobj_perform_destroy(UVERBS_OBJECT_FLOW, cmd.flow_handle, attrs);
3352}
3353
3354static int __uverbs_create_xsrq(struct uverbs_attr_bundle *attrs,
3355 struct ib_uverbs_create_xsrq *cmd,
3356 struct ib_udata *udata)
3357{
3358 struct ib_uverbs_create_srq_resp resp = {};
3359 struct ib_usrq_object *obj;
3360 struct ib_pd *pd;
3361 struct ib_srq *srq;
3362 struct ib_srq_init_attr attr;
3363 int ret;
3364 struct ib_uobject *xrcd_uobj;
3365 struct ib_device *ib_dev;
3366
3367 obj = (struct ib_usrq_object *)uobj_alloc(UVERBS_OBJECT_SRQ, attrs,
3368 &ib_dev);
3369 if (IS_ERR(obj))
3370 return PTR_ERR(obj);
3371
3372 if (cmd->srq_type == IB_SRQT_TM)
3373 attr.ext.tag_matching.max_num_tags = cmd->max_num_tags;
3374
3375 if (cmd->srq_type == IB_SRQT_XRC) {
3376 xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->xrcd_handle,
3377 attrs);
3378 if (IS_ERR(xrcd_uobj)) {
3379 ret = -EINVAL;
3380 goto err;
3381 }
3382
3383 attr.ext.xrc.xrcd = (struct ib_xrcd *)xrcd_uobj->object;
3384 if (!attr.ext.xrc.xrcd) {
3385 ret = -EINVAL;
3386 goto err_put_xrcd;
3387 }
3388
3389 obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
3390 atomic_inc(&obj->uxrcd->refcnt);
3391 }
3392
3393 if (ib_srq_has_cq(cmd->srq_type)) {
3394 attr.ext.cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ,
3395 cmd->cq_handle, attrs);
3396 if (!attr.ext.cq) {
3397 ret = -EINVAL;
3398 goto err_put_xrcd;
3399 }
3400 }
3401
3402 pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, attrs);
3403 if (!pd) {
3404 ret = -EINVAL;
3405 goto err_put_cq;
3406 }
3407
3408 attr.event_handler = ib_uverbs_srq_event_handler;
3409 attr.srq_type = cmd->srq_type;
3410 attr.attr.max_wr = cmd->max_wr;
3411 attr.attr.max_sge = cmd->max_sge;
3412 attr.attr.srq_limit = cmd->srq_limit;
3413
3414 INIT_LIST_HEAD(&obj->uevent.event_list);
3415 obj->uevent.uobject.user_handle = cmd->user_handle;
3416
3417 srq = ib_create_srq_user(pd, &attr, obj, udata);
3418 if (IS_ERR(srq)) {
3419 ret = PTR_ERR(srq);
3420 goto err_put_pd;
3421 }
3422
3423 obj->uevent.uobject.object = srq;
3424 obj->uevent.uobject.user_handle = cmd->user_handle;
3425 obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file);
3426 if (obj->uevent.event_file)
3427 uverbs_uobject_get(&obj->uevent.event_file->uobj);
3428
3429 if (cmd->srq_type == IB_SRQT_XRC)
3430 resp.srqn = srq->ext.xrc.srq_num;
3431
3432 if (cmd->srq_type == IB_SRQT_XRC)
3433 uobj_put_read(xrcd_uobj);
3434
3435 if (ib_srq_has_cq(cmd->srq_type))
3436 rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject,
3437 UVERBS_LOOKUP_READ);
3438
3439 uobj_put_obj_read(pd);
3440 uobj_finalize_uobj_create(&obj->uevent.uobject, attrs);
3441
3442 resp.srq_handle = obj->uevent.uobject.id;
3443 resp.max_wr = attr.attr.max_wr;
3444 resp.max_sge = attr.attr.max_sge;
3445 return uverbs_response(attrs, &resp, sizeof(resp));
3446
3447err_put_pd:
3448 uobj_put_obj_read(pd);
3449err_put_cq:
3450 if (ib_srq_has_cq(cmd->srq_type))
3451 rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject,
3452 UVERBS_LOOKUP_READ);
3453
3454err_put_xrcd:
3455 if (cmd->srq_type == IB_SRQT_XRC) {
3456 atomic_dec(&obj->uxrcd->refcnt);
3457 uobj_put_read(xrcd_uobj);
3458 }
3459
3460err:
3461 uobj_alloc_abort(&obj->uevent.uobject, attrs);
3462 return ret;
3463}
3464
3465static int ib_uverbs_create_srq(struct uverbs_attr_bundle *attrs)
3466{
3467 struct ib_uverbs_create_srq cmd;
3468 struct ib_uverbs_create_xsrq xcmd;
3469 int ret;
3470
3471 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3472 if (ret)
3473 return ret;
3474
3475 memset(&xcmd, 0, sizeof(xcmd));
3476 xcmd.response = cmd.response;
3477 xcmd.user_handle = cmd.user_handle;
3478 xcmd.srq_type = IB_SRQT_BASIC;
3479 xcmd.pd_handle = cmd.pd_handle;
3480 xcmd.max_wr = cmd.max_wr;
3481 xcmd.max_sge = cmd.max_sge;
3482 xcmd.srq_limit = cmd.srq_limit;
3483
3484 return __uverbs_create_xsrq(attrs, &xcmd, &attrs->driver_udata);
3485}
3486
3487static int ib_uverbs_create_xsrq(struct uverbs_attr_bundle *attrs)
3488{
3489 struct ib_uverbs_create_xsrq cmd;
3490 int ret;
3491
3492 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3493 if (ret)
3494 return ret;
3495
3496 return __uverbs_create_xsrq(attrs, &cmd, &attrs->driver_udata);
3497}
3498
3499static int ib_uverbs_modify_srq(struct uverbs_attr_bundle *attrs)
3500{
3501 struct ib_uverbs_modify_srq cmd;
3502 struct ib_srq *srq;
3503 struct ib_srq_attr attr;
3504 int ret;
3505
3506 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3507 if (ret)
3508 return ret;
3509
3510 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3511 if (!srq)
3512 return -EINVAL;
3513
3514 attr.max_wr = cmd.max_wr;
3515 attr.srq_limit = cmd.srq_limit;
3516
3517 ret = srq->device->ops.modify_srq(srq, &attr, cmd.attr_mask,
3518 &attrs->driver_udata);
3519
3520 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
3521 UVERBS_LOOKUP_READ);
3522
3523 return ret;
3524}
3525
3526static int ib_uverbs_query_srq(struct uverbs_attr_bundle *attrs)
3527{
3528 struct ib_uverbs_query_srq cmd;
3529 struct ib_uverbs_query_srq_resp resp;
3530 struct ib_srq_attr attr;
3531 struct ib_srq *srq;
3532 int ret;
3533
3534 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3535 if (ret)
3536 return ret;
3537
3538 srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3539 if (!srq)
3540 return -EINVAL;
3541
3542 ret = ib_query_srq(srq, &attr);
3543
3544 rdma_lookup_put_uobject(&srq->uobject->uevent.uobject,
3545 UVERBS_LOOKUP_READ);
3546
3547 if (ret)
3548 return ret;
3549
3550 memset(&resp, 0, sizeof resp);
3551
3552 resp.max_wr = attr.max_wr;
3553 resp.max_sge = attr.max_sge;
3554 resp.srq_limit = attr.srq_limit;
3555
3556 return uverbs_response(attrs, &resp, sizeof(resp));
3557}
3558
3559static int ib_uverbs_destroy_srq(struct uverbs_attr_bundle *attrs)
3560{
3561 struct ib_uverbs_destroy_srq cmd;
3562 struct ib_uverbs_destroy_srq_resp resp;
3563 struct ib_uobject *uobj;
3564 struct ib_uevent_object *obj;
3565 int ret;
3566
3567 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3568 if (ret)
3569 return ret;
3570
3571 uobj = uobj_get_destroy(UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs);
3572 if (IS_ERR(uobj))
3573 return PTR_ERR(uobj);
3574
3575 obj = container_of(uobj, struct ib_uevent_object, uobject);
3576 memset(&resp, 0, sizeof(resp));
3577 resp.events_reported = obj->events_reported;
3578
3579 uobj_put_destroy(uobj);
3580
3581 return uverbs_response(attrs, &resp, sizeof(resp));
3582}
3583
3584static int ib_uverbs_ex_query_device(struct uverbs_attr_bundle *attrs)
3585{
3586 struct ib_uverbs_ex_query_device_resp resp = {};
3587 struct ib_uverbs_ex_query_device cmd;
3588 struct ib_device_attr attr = {0};
3589 struct ib_ucontext *ucontext;
3590 struct ib_device *ib_dev;
3591 int err;
3592
3593 ucontext = ib_uverbs_get_ucontext(attrs);
3594 if (IS_ERR(ucontext))
3595 return PTR_ERR(ucontext);
3596 ib_dev = ucontext->device;
3597
3598 err = uverbs_request(attrs, &cmd, sizeof(cmd));
3599 if (err)
3600 return err;
3601
3602 if (cmd.comp_mask)
3603 return -EINVAL;
3604
3605 if (cmd.reserved)
3606 return -EINVAL;
3607
3608 err = ib_dev->ops.query_device(ib_dev, &attr, &attrs->driver_udata);
3609 if (err)
3610 return err;
3611
3612 copy_query_dev_fields(ucontext, &resp.base, &attr);
3613
3614 resp.odp_caps.general_caps = attr.odp_caps.general_caps;
3615 resp.odp_caps.per_transport_caps.rc_odp_caps =
3616 attr.odp_caps.per_transport_caps.rc_odp_caps;
3617 resp.odp_caps.per_transport_caps.uc_odp_caps =
3618 attr.odp_caps.per_transport_caps.uc_odp_caps;
3619 resp.odp_caps.per_transport_caps.ud_odp_caps =
3620 attr.odp_caps.per_transport_caps.ud_odp_caps;
3621 resp.xrc_odp_caps = attr.odp_caps.per_transport_caps.xrc_odp_caps;
3622
3623 resp.timestamp_mask = attr.timestamp_mask;
3624 resp.hca_core_clock = attr.hca_core_clock;
3625 resp.device_cap_flags_ex = attr.device_cap_flags;
3626 resp.rss_caps.supported_qpts = attr.rss_caps.supported_qpts;
3627 resp.rss_caps.max_rwq_indirection_tables =
3628 attr.rss_caps.max_rwq_indirection_tables;
3629 resp.rss_caps.max_rwq_indirection_table_size =
3630 attr.rss_caps.max_rwq_indirection_table_size;
3631 resp.max_wq_type_rq = attr.max_wq_type_rq;
3632 resp.raw_packet_caps = attr.raw_packet_caps;
3633 resp.tm_caps.max_rndv_hdr_size = attr.tm_caps.max_rndv_hdr_size;
3634 resp.tm_caps.max_num_tags = attr.tm_caps.max_num_tags;
3635 resp.tm_caps.max_ops = attr.tm_caps.max_ops;
3636 resp.tm_caps.max_sge = attr.tm_caps.max_sge;
3637 resp.tm_caps.flags = attr.tm_caps.flags;
3638 resp.cq_moderation_caps.max_cq_moderation_count =
3639 attr.cq_caps.max_cq_moderation_count;
3640 resp.cq_moderation_caps.max_cq_moderation_period =
3641 attr.cq_caps.max_cq_moderation_period;
3642 resp.max_dm_size = attr.max_dm_size;
3643 resp.response_length = uverbs_response_length(attrs, sizeof(resp));
3644
3645 return uverbs_response(attrs, &resp, sizeof(resp));
3646}
3647
3648static int ib_uverbs_ex_modify_cq(struct uverbs_attr_bundle *attrs)
3649{
3650 struct ib_uverbs_ex_modify_cq cmd;
3651 struct ib_cq *cq;
3652 int ret;
3653
3654 ret = uverbs_request(attrs, &cmd, sizeof(cmd));
3655 if (ret)
3656 return ret;
3657
3658 if (!cmd.attr_mask || cmd.reserved)
3659 return -EINVAL;
3660
3661 if (cmd.attr_mask > IB_CQ_MODERATE)
3662 return -EOPNOTSUPP;
3663
3664 cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs);
3665 if (!cq)
3666 return -EINVAL;
3667
3668 ret = rdma_set_cq_moderation(cq, cmd.attr.cq_count, cmd.attr.cq_period);
3669
3670 rdma_lookup_put_uobject(&cq->uobject->uevent.uobject,
3671 UVERBS_LOOKUP_READ);
3672 return ret;
3673}
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684#define UAPI_DEF_WRITE_IO(req, resp) \
3685 .write.has_resp = 1 + \
3686 BUILD_BUG_ON_ZERO(offsetof(req, response) != 0) + \
3687 BUILD_BUG_ON_ZERO(sizeof_field(req, response) != \
3688 sizeof(u64)), \
3689 .write.req_size = sizeof(req), .write.resp_size = sizeof(resp)
3690
3691#define UAPI_DEF_WRITE_I(req) .write.req_size = sizeof(req)
3692
3693#define UAPI_DEF_WRITE_UDATA_IO(req, resp) \
3694 UAPI_DEF_WRITE_IO(req, resp), \
3695 .write.has_udata = \
3696 1 + \
3697 BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \
3698 sizeof(req)) + \
3699 BUILD_BUG_ON_ZERO(offsetof(resp, driver_data) != \
3700 sizeof(resp))
3701
3702#define UAPI_DEF_WRITE_UDATA_I(req) \
3703 UAPI_DEF_WRITE_I(req), \
3704 .write.has_udata = \
3705 1 + BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \
3706 sizeof(req))
3707
3708
3709
3710
3711
3712#define UAPI_DEF_WRITE_IO_EX(req, req_last_member, resp, resp_last_member) \
3713 .write.has_resp = 1, \
3714 .write.req_size = offsetofend(req, req_last_member), \
3715 .write.resp_size = offsetofend(resp, resp_last_member)
3716
3717#define UAPI_DEF_WRITE_I_EX(req, req_last_member) \
3718 .write.req_size = offsetofend(req, req_last_member)
3719
3720const struct uapi_definition uverbs_def_write_intf[] = {
3721 DECLARE_UVERBS_OBJECT(
3722 UVERBS_OBJECT_AH,
3723 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_AH,
3724 ib_uverbs_create_ah,
3725 UAPI_DEF_WRITE_UDATA_IO(
3726 struct ib_uverbs_create_ah,
3727 struct ib_uverbs_create_ah_resp)),
3728 DECLARE_UVERBS_WRITE(
3729 IB_USER_VERBS_CMD_DESTROY_AH,
3730 ib_uverbs_destroy_ah,
3731 UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_ah)),
3732 UAPI_DEF_OBJ_NEEDS_FN(create_user_ah),
3733 UAPI_DEF_OBJ_NEEDS_FN(destroy_ah)),
3734
3735 DECLARE_UVERBS_OBJECT(
3736 UVERBS_OBJECT_COMP_CHANNEL,
3737 DECLARE_UVERBS_WRITE(
3738 IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
3739 ib_uverbs_create_comp_channel,
3740 UAPI_DEF_WRITE_IO(
3741 struct ib_uverbs_create_comp_channel,
3742 struct ib_uverbs_create_comp_channel_resp))),
3743
3744 DECLARE_UVERBS_OBJECT(
3745 UVERBS_OBJECT_CQ,
3746 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_CQ,
3747 ib_uverbs_create_cq,
3748 UAPI_DEF_WRITE_UDATA_IO(
3749 struct ib_uverbs_create_cq,
3750 struct ib_uverbs_create_cq_resp),
3751 UAPI_DEF_METHOD_NEEDS_FN(create_cq)),
3752 DECLARE_UVERBS_WRITE(
3753 IB_USER_VERBS_CMD_DESTROY_CQ,
3754 ib_uverbs_destroy_cq,
3755 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_cq,
3756 struct ib_uverbs_destroy_cq_resp),
3757 UAPI_DEF_METHOD_NEEDS_FN(destroy_cq)),
3758 DECLARE_UVERBS_WRITE(
3759 IB_USER_VERBS_CMD_POLL_CQ,
3760 ib_uverbs_poll_cq,
3761 UAPI_DEF_WRITE_IO(struct ib_uverbs_poll_cq,
3762 struct ib_uverbs_poll_cq_resp),
3763 UAPI_DEF_METHOD_NEEDS_FN(poll_cq)),
3764 DECLARE_UVERBS_WRITE(
3765 IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
3766 ib_uverbs_req_notify_cq,
3767 UAPI_DEF_WRITE_I(struct ib_uverbs_req_notify_cq),
3768 UAPI_DEF_METHOD_NEEDS_FN(req_notify_cq)),
3769 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_RESIZE_CQ,
3770 ib_uverbs_resize_cq,
3771 UAPI_DEF_WRITE_UDATA_IO(
3772 struct ib_uverbs_resize_cq,
3773 struct ib_uverbs_resize_cq_resp),
3774 UAPI_DEF_METHOD_NEEDS_FN(resize_cq)),
3775 DECLARE_UVERBS_WRITE_EX(
3776 IB_USER_VERBS_EX_CMD_CREATE_CQ,
3777 ib_uverbs_ex_create_cq,
3778 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_cq,
3779 reserved,
3780 struct ib_uverbs_ex_create_cq_resp,
3781 response_length),
3782 UAPI_DEF_METHOD_NEEDS_FN(create_cq)),
3783 DECLARE_UVERBS_WRITE_EX(
3784 IB_USER_VERBS_EX_CMD_MODIFY_CQ,
3785 ib_uverbs_ex_modify_cq,
3786 UAPI_DEF_WRITE_I(struct ib_uverbs_ex_modify_cq),
3787 UAPI_DEF_METHOD_NEEDS_FN(modify_cq))),
3788
3789 DECLARE_UVERBS_OBJECT(
3790 UVERBS_OBJECT_DEVICE,
3791 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_GET_CONTEXT,
3792 ib_uverbs_get_context,
3793 UAPI_DEF_WRITE_UDATA_IO(
3794 struct ib_uverbs_get_context,
3795 struct ib_uverbs_get_context_resp)),
3796 DECLARE_UVERBS_WRITE(
3797 IB_USER_VERBS_CMD_QUERY_DEVICE,
3798 ib_uverbs_query_device,
3799 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_device,
3800 struct ib_uverbs_query_device_resp)),
3801 DECLARE_UVERBS_WRITE(
3802 IB_USER_VERBS_CMD_QUERY_PORT,
3803 ib_uverbs_query_port,
3804 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_port,
3805 struct ib_uverbs_query_port_resp),
3806 UAPI_DEF_METHOD_NEEDS_FN(query_port)),
3807 DECLARE_UVERBS_WRITE_EX(
3808 IB_USER_VERBS_EX_CMD_QUERY_DEVICE,
3809 ib_uverbs_ex_query_device,
3810 UAPI_DEF_WRITE_IO_EX(
3811 struct ib_uverbs_ex_query_device,
3812 reserved,
3813 struct ib_uverbs_ex_query_device_resp,
3814 response_length),
3815 UAPI_DEF_METHOD_NEEDS_FN(query_device)),
3816 UAPI_DEF_OBJ_NEEDS_FN(alloc_ucontext),
3817 UAPI_DEF_OBJ_NEEDS_FN(dealloc_ucontext)),
3818
3819 DECLARE_UVERBS_OBJECT(
3820 UVERBS_OBJECT_FLOW,
3821 DECLARE_UVERBS_WRITE_EX(
3822 IB_USER_VERBS_EX_CMD_CREATE_FLOW,
3823 ib_uverbs_ex_create_flow,
3824 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_create_flow,
3825 flow_attr,
3826 struct ib_uverbs_create_flow_resp,
3827 flow_handle),
3828 UAPI_DEF_METHOD_NEEDS_FN(create_flow)),
3829 DECLARE_UVERBS_WRITE_EX(
3830 IB_USER_VERBS_EX_CMD_DESTROY_FLOW,
3831 ib_uverbs_ex_destroy_flow,
3832 UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_flow),
3833 UAPI_DEF_METHOD_NEEDS_FN(destroy_flow))),
3834
3835 DECLARE_UVERBS_OBJECT(
3836 UVERBS_OBJECT_MR,
3837 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_DEREG_MR,
3838 ib_uverbs_dereg_mr,
3839 UAPI_DEF_WRITE_I(struct ib_uverbs_dereg_mr),
3840 UAPI_DEF_METHOD_NEEDS_FN(dereg_mr)),
3841 DECLARE_UVERBS_WRITE(
3842 IB_USER_VERBS_CMD_REG_MR,
3843 ib_uverbs_reg_mr,
3844 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_reg_mr,
3845 struct ib_uverbs_reg_mr_resp),
3846 UAPI_DEF_METHOD_NEEDS_FN(reg_user_mr)),
3847 DECLARE_UVERBS_WRITE(
3848 IB_USER_VERBS_CMD_REREG_MR,
3849 ib_uverbs_rereg_mr,
3850 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_rereg_mr,
3851 struct ib_uverbs_rereg_mr_resp),
3852 UAPI_DEF_METHOD_NEEDS_FN(rereg_user_mr))),
3853
3854 DECLARE_UVERBS_OBJECT(
3855 UVERBS_OBJECT_MW,
3856 DECLARE_UVERBS_WRITE(
3857 IB_USER_VERBS_CMD_ALLOC_MW,
3858 ib_uverbs_alloc_mw,
3859 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_mw,
3860 struct ib_uverbs_alloc_mw_resp),
3861 UAPI_DEF_METHOD_NEEDS_FN(alloc_mw)),
3862 DECLARE_UVERBS_WRITE(
3863 IB_USER_VERBS_CMD_DEALLOC_MW,
3864 ib_uverbs_dealloc_mw,
3865 UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_mw),
3866 UAPI_DEF_METHOD_NEEDS_FN(dealloc_mw))),
3867
3868 DECLARE_UVERBS_OBJECT(
3869 UVERBS_OBJECT_PD,
3870 DECLARE_UVERBS_WRITE(
3871 IB_USER_VERBS_CMD_ALLOC_PD,
3872 ib_uverbs_alloc_pd,
3873 UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_pd,
3874 struct ib_uverbs_alloc_pd_resp),
3875 UAPI_DEF_METHOD_NEEDS_FN(alloc_pd)),
3876 DECLARE_UVERBS_WRITE(
3877 IB_USER_VERBS_CMD_DEALLOC_PD,
3878 ib_uverbs_dealloc_pd,
3879 UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_pd),
3880 UAPI_DEF_METHOD_NEEDS_FN(dealloc_pd))),
3881
3882 DECLARE_UVERBS_OBJECT(
3883 UVERBS_OBJECT_QP,
3884 DECLARE_UVERBS_WRITE(
3885 IB_USER_VERBS_CMD_ATTACH_MCAST,
3886 ib_uverbs_attach_mcast,
3887 UAPI_DEF_WRITE_I(struct ib_uverbs_attach_mcast),
3888 UAPI_DEF_METHOD_NEEDS_FN(attach_mcast),
3889 UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)),
3890 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_QP,
3891 ib_uverbs_create_qp,
3892 UAPI_DEF_WRITE_UDATA_IO(
3893 struct ib_uverbs_create_qp,
3894 struct ib_uverbs_create_qp_resp),
3895 UAPI_DEF_METHOD_NEEDS_FN(create_qp)),
3896 DECLARE_UVERBS_WRITE(
3897 IB_USER_VERBS_CMD_DESTROY_QP,
3898 ib_uverbs_destroy_qp,
3899 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_qp,
3900 struct ib_uverbs_destroy_qp_resp),
3901 UAPI_DEF_METHOD_NEEDS_FN(destroy_qp)),
3902 DECLARE_UVERBS_WRITE(
3903 IB_USER_VERBS_CMD_DETACH_MCAST,
3904 ib_uverbs_detach_mcast,
3905 UAPI_DEF_WRITE_I(struct ib_uverbs_detach_mcast),
3906 UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)),
3907 DECLARE_UVERBS_WRITE(
3908 IB_USER_VERBS_CMD_MODIFY_QP,
3909 ib_uverbs_modify_qp,
3910 UAPI_DEF_WRITE_I(struct ib_uverbs_modify_qp),
3911 UAPI_DEF_METHOD_NEEDS_FN(modify_qp)),
3912 DECLARE_UVERBS_WRITE(
3913 IB_USER_VERBS_CMD_POST_RECV,
3914 ib_uverbs_post_recv,
3915 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_recv,
3916 struct ib_uverbs_post_recv_resp),
3917 UAPI_DEF_METHOD_NEEDS_FN(post_recv)),
3918 DECLARE_UVERBS_WRITE(
3919 IB_USER_VERBS_CMD_POST_SEND,
3920 ib_uverbs_post_send,
3921 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_send,
3922 struct ib_uverbs_post_send_resp),
3923 UAPI_DEF_METHOD_NEEDS_FN(post_send)),
3924 DECLARE_UVERBS_WRITE(
3925 IB_USER_VERBS_CMD_QUERY_QP,
3926 ib_uverbs_query_qp,
3927 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_qp,
3928 struct ib_uverbs_query_qp_resp),
3929 UAPI_DEF_METHOD_NEEDS_FN(query_qp)),
3930 DECLARE_UVERBS_WRITE_EX(
3931 IB_USER_VERBS_EX_CMD_CREATE_QP,
3932 ib_uverbs_ex_create_qp,
3933 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_qp,
3934 comp_mask,
3935 struct ib_uverbs_ex_create_qp_resp,
3936 response_length),
3937 UAPI_DEF_METHOD_NEEDS_FN(create_qp)),
3938 DECLARE_UVERBS_WRITE_EX(
3939 IB_USER_VERBS_EX_CMD_MODIFY_QP,
3940 ib_uverbs_ex_modify_qp,
3941 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_modify_qp,
3942 base,
3943 struct ib_uverbs_ex_modify_qp_resp,
3944 response_length),
3945 UAPI_DEF_METHOD_NEEDS_FN(modify_qp))),
3946
3947 DECLARE_UVERBS_OBJECT(
3948 UVERBS_OBJECT_RWQ_IND_TBL,
3949 DECLARE_UVERBS_WRITE_EX(
3950 IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL,
3951 ib_uverbs_ex_create_rwq_ind_table,
3952 UAPI_DEF_WRITE_IO_EX(
3953 struct ib_uverbs_ex_create_rwq_ind_table,
3954 log_ind_tbl_size,
3955 struct ib_uverbs_ex_create_rwq_ind_table_resp,
3956 ind_tbl_num),
3957 UAPI_DEF_METHOD_NEEDS_FN(create_rwq_ind_table)),
3958 DECLARE_UVERBS_WRITE_EX(
3959 IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL,
3960 ib_uverbs_ex_destroy_rwq_ind_table,
3961 UAPI_DEF_WRITE_I(
3962 struct ib_uverbs_ex_destroy_rwq_ind_table),
3963 UAPI_DEF_METHOD_NEEDS_FN(destroy_rwq_ind_table))),
3964
3965 DECLARE_UVERBS_OBJECT(
3966 UVERBS_OBJECT_WQ,
3967 DECLARE_UVERBS_WRITE_EX(
3968 IB_USER_VERBS_EX_CMD_CREATE_WQ,
3969 ib_uverbs_ex_create_wq,
3970 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_wq,
3971 max_sge,
3972 struct ib_uverbs_ex_create_wq_resp,
3973 wqn),
3974 UAPI_DEF_METHOD_NEEDS_FN(create_wq)),
3975 DECLARE_UVERBS_WRITE_EX(
3976 IB_USER_VERBS_EX_CMD_DESTROY_WQ,
3977 ib_uverbs_ex_destroy_wq,
3978 UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_destroy_wq,
3979 wq_handle,
3980 struct ib_uverbs_ex_destroy_wq_resp,
3981 reserved),
3982 UAPI_DEF_METHOD_NEEDS_FN(destroy_wq)),
3983 DECLARE_UVERBS_WRITE_EX(
3984 IB_USER_VERBS_EX_CMD_MODIFY_WQ,
3985 ib_uverbs_ex_modify_wq,
3986 UAPI_DEF_WRITE_I_EX(struct ib_uverbs_ex_modify_wq,
3987 curr_wq_state),
3988 UAPI_DEF_METHOD_NEEDS_FN(modify_wq))),
3989
3990 DECLARE_UVERBS_OBJECT(
3991 UVERBS_OBJECT_SRQ,
3992 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_SRQ,
3993 ib_uverbs_create_srq,
3994 UAPI_DEF_WRITE_UDATA_IO(
3995 struct ib_uverbs_create_srq,
3996 struct ib_uverbs_create_srq_resp),
3997 UAPI_DEF_METHOD_NEEDS_FN(create_srq)),
3998 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_XSRQ,
3999 ib_uverbs_create_xsrq,
4000 UAPI_DEF_WRITE_UDATA_IO(
4001 struct ib_uverbs_create_xsrq,
4002 struct ib_uverbs_create_srq_resp),
4003 UAPI_DEF_METHOD_NEEDS_FN(create_srq)),
4004 DECLARE_UVERBS_WRITE(
4005 IB_USER_VERBS_CMD_DESTROY_SRQ,
4006 ib_uverbs_destroy_srq,
4007 UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_srq,
4008 struct ib_uverbs_destroy_srq_resp),
4009 UAPI_DEF_METHOD_NEEDS_FN(destroy_srq)),
4010 DECLARE_UVERBS_WRITE(
4011 IB_USER_VERBS_CMD_MODIFY_SRQ,
4012 ib_uverbs_modify_srq,
4013 UAPI_DEF_WRITE_UDATA_I(struct ib_uverbs_modify_srq),
4014 UAPI_DEF_METHOD_NEEDS_FN(modify_srq)),
4015 DECLARE_UVERBS_WRITE(
4016 IB_USER_VERBS_CMD_POST_SRQ_RECV,
4017 ib_uverbs_post_srq_recv,
4018 UAPI_DEF_WRITE_IO(struct ib_uverbs_post_srq_recv,
4019 struct ib_uverbs_post_srq_recv_resp),
4020 UAPI_DEF_METHOD_NEEDS_FN(post_srq_recv)),
4021 DECLARE_UVERBS_WRITE(
4022 IB_USER_VERBS_CMD_QUERY_SRQ,
4023 ib_uverbs_query_srq,
4024 UAPI_DEF_WRITE_IO(struct ib_uverbs_query_srq,
4025 struct ib_uverbs_query_srq_resp),
4026 UAPI_DEF_METHOD_NEEDS_FN(query_srq))),
4027
4028 DECLARE_UVERBS_OBJECT(
4029 UVERBS_OBJECT_XRCD,
4030 DECLARE_UVERBS_WRITE(
4031 IB_USER_VERBS_CMD_CLOSE_XRCD,
4032 ib_uverbs_close_xrcd,
4033 UAPI_DEF_WRITE_I(struct ib_uverbs_close_xrcd)),
4034 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_QP,
4035 ib_uverbs_open_qp,
4036 UAPI_DEF_WRITE_UDATA_IO(
4037 struct ib_uverbs_open_qp,
4038 struct ib_uverbs_create_qp_resp)),
4039 DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_XRCD,
4040 ib_uverbs_open_xrcd,
4041 UAPI_DEF_WRITE_UDATA_IO(
4042 struct ib_uverbs_open_xrcd,
4043 struct ib_uverbs_open_xrcd_resp)),
4044 UAPI_DEF_OBJ_NEEDS_FN(alloc_xrcd),
4045 UAPI_DEF_OBJ_NEEDS_FN(dealloc_xrcd)),
4046
4047 {},
4048};
4049