2 * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
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6 * General Public License (GPL) Version 2, available from the file
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8 * OpenIB.org BSD license below:
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29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <rdma/uverbs_std_types.h>
36 static int uverbs_free_dm(struct ib_uobject *uobject,
37 enum rdma_remove_reason why)
39 struct ib_dm *dm = uobject->object;
42 ret = ib_destroy_usecnt(&dm->usecnt, why, uobject);
46 return dm->device->dealloc_dm(dm);
50 UVERBS_HANDLER(UVERBS_METHOD_DM_ALLOC)(struct ib_uverbs_file *file,
51 struct uverbs_attr_bundle *attrs)
53 struct ib_dm_alloc_attr attr = {};
54 struct ib_uobject *uobj =
55 uverbs_attr_get(attrs, UVERBS_ATTR_ALLOC_DM_HANDLE)
57 struct ib_device *ib_dev = uobj->context->device;
61 if (!ib_dev->alloc_dm)
64 ret = uverbs_copy_from(&attr.length, attrs,
65 UVERBS_ATTR_ALLOC_DM_LENGTH);
69 ret = uverbs_copy_from(&attr.alignment, attrs,
70 UVERBS_ATTR_ALLOC_DM_ALIGNMENT);
74 dm = ib_dev->alloc_dm(ib_dev, uobj->context, &attr, attrs);
79 dm->length = attr.length;
81 atomic_set(&dm->usecnt, 0);
88 DECLARE_UVERBS_NAMED_METHOD(
89 UVERBS_METHOD_DM_ALLOC,
90 UVERBS_ATTR_IDR(UVERBS_ATTR_ALLOC_DM_HANDLE,
94 UVERBS_ATTR_PTR_IN(UVERBS_ATTR_ALLOC_DM_LENGTH,
95 UVERBS_ATTR_TYPE(u64),
97 UVERBS_ATTR_PTR_IN(UVERBS_ATTR_ALLOC_DM_ALIGNMENT,
98 UVERBS_ATTR_TYPE(u32),
101 DECLARE_UVERBS_NAMED_METHOD_DESTROY(
102 UVERBS_METHOD_DM_FREE,
103 UVERBS_ATTR_IDR(UVERBS_ATTR_FREE_DM_HANDLE,
105 UVERBS_ACCESS_DESTROY,
108 DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_DM,
109 UVERBS_TYPE_ALLOC_IDR(uverbs_free_dm),
110 &UVERBS_METHOD(UVERBS_METHOD_DM_ALLOC),
111 &UVERBS_METHOD(UVERBS_METHOD_DM_FREE));