2 * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
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34 #include <rdma/uverbs_std_types.h>
36 static int uverbs_free_mr(struct ib_uobject *uobject,
37 enum rdma_remove_reason why)
39 return ib_dereg_mr((struct ib_mr *)uobject->object);
42 static int UVERBS_HANDLER(UVERBS_METHOD_ADVISE_MR)(
43 struct uverbs_attr_bundle *attrs)
46 uverbs_attr_get_obj(attrs, UVERBS_ATTR_ADVISE_MR_PD_HANDLE);
47 enum ib_uverbs_advise_mr_advice advice;
48 struct ib_device *ib_dev = pd->device;
49 struct ib_sge *sg_list;
54 /* FIXME: Extend the UAPI_DEF_OBJ_NEEDS_FN stuff.. */
55 if (!ib_dev->ops.advise_mr)
58 ret = uverbs_get_const(&advice, attrs, UVERBS_ATTR_ADVISE_MR_ADVICE);
62 ret = uverbs_get_flags32(&flags, attrs, UVERBS_ATTR_ADVISE_MR_FLAGS,
63 IB_UVERBS_ADVISE_MR_FLAG_FLUSH);
67 num_sge = uverbs_attr_ptr_get_array_size(
68 attrs, UVERBS_ATTR_ADVISE_MR_SGE_LIST, sizeof(struct ib_sge));
72 sg_list = uverbs_attr_get_alloced_ptr(attrs,
73 UVERBS_ATTR_ADVISE_MR_SGE_LIST);
74 return ib_dev->ops.advise_mr(pd, advice, flags, sg_list, num_sge,
78 static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)(
79 struct uverbs_attr_bundle *attrs)
81 struct ib_dm_mr_attr attr = {};
82 struct ib_uobject *uobj =
83 uverbs_attr_get_uobject(attrs, UVERBS_ATTR_REG_DM_MR_HANDLE);
85 uverbs_attr_get_obj(attrs, UVERBS_ATTR_REG_DM_MR_DM_HANDLE);
87 uverbs_attr_get_obj(attrs, UVERBS_ATTR_REG_DM_MR_PD_HANDLE);
88 struct ib_device *ib_dev = pd->device;
93 if (!ib_dev->ops.reg_dm_mr)
96 ret = uverbs_copy_from(&attr.offset, attrs, UVERBS_ATTR_REG_DM_MR_OFFSET);
100 ret = uverbs_copy_from(&attr.length, attrs,
101 UVERBS_ATTR_REG_DM_MR_LENGTH);
105 ret = uverbs_get_flags32(&attr.access_flags, attrs,
106 UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS,
107 IB_ACCESS_SUPPORTED);
111 if (!(attr.access_flags & IB_ZERO_BASED))
114 ret = ib_check_mr_access(attr.access_flags);
118 if (attr.offset > dm->length || attr.length > dm->length ||
119 attr.length > dm->length - attr.offset)
122 mr = pd->device->ops.reg_dm_mr(pd, dm, &attr, attrs);
126 mr->device = pd->device;
130 atomic_inc(&pd->usecnt);
131 atomic_inc(&dm->usecnt);
135 ret = uverbs_copy_to(attrs, UVERBS_ATTR_REG_DM_MR_RESP_LKEY, &mr->lkey,
140 ret = uverbs_copy_to(attrs, UVERBS_ATTR_REG_DM_MR_RESP_RKEY,
141 &mr->rkey, sizeof(mr->rkey));
153 DECLARE_UVERBS_NAMED_METHOD(
154 UVERBS_METHOD_ADVISE_MR,
155 UVERBS_ATTR_IDR(UVERBS_ATTR_ADVISE_MR_PD_HANDLE,
159 UVERBS_ATTR_CONST_IN(UVERBS_ATTR_ADVISE_MR_ADVICE,
160 enum ib_uverbs_advise_mr_advice,
162 UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_ADVISE_MR_FLAGS,
163 enum ib_uverbs_advise_mr_flag,
165 UVERBS_ATTR_PTR_IN(UVERBS_ATTR_ADVISE_MR_SGE_LIST,
166 UVERBS_ATTR_MIN_SIZE(sizeof(struct ib_uverbs_sge)),
170 DECLARE_UVERBS_NAMED_METHOD(
171 UVERBS_METHOD_DM_MR_REG,
172 UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_HANDLE,
176 UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_OFFSET,
177 UVERBS_ATTR_TYPE(u64),
179 UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_LENGTH,
180 UVERBS_ATTR_TYPE(u64),
182 UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_PD_HANDLE,
186 UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS,
187 enum ib_access_flags),
188 UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_DM_HANDLE,
192 UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_REG_DM_MR_RESP_LKEY,
193 UVERBS_ATTR_TYPE(u32),
195 UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_REG_DM_MR_RESP_RKEY,
196 UVERBS_ATTR_TYPE(u32),
199 DECLARE_UVERBS_NAMED_METHOD_DESTROY(
200 UVERBS_METHOD_MR_DESTROY,
201 UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_MR_HANDLE,
203 UVERBS_ACCESS_DESTROY,
206 DECLARE_UVERBS_NAMED_OBJECT(
208 UVERBS_TYPE_ALLOC_IDR(uverbs_free_mr),
209 &UVERBS_METHOD(UVERBS_METHOD_DM_MR_REG),
210 &UVERBS_METHOD(UVERBS_METHOD_MR_DESTROY),
211 &UVERBS_METHOD(UVERBS_METHOD_ADVISE_MR));
213 const struct uapi_definition uverbs_def_obj_mr[] = {
214 UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_MR,
215 UAPI_DEF_OBJ_NEEDS_FN(dereg_mr)),