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sys/ofed/drivers/infiniband/core/ib_uverbs_std_types_dm.c
- This file was added.
/* | |||||
* Copyright (c) 2018, Mellanox Technologies inc. All rights reserved. | |||||
* | |||||
* This software is available to you under a choice of one of two | |||||
* licenses. You may choose to be licensed under the terms of the GNU | |||||
* General Public License (GPL) Version 2, available from the file | |||||
* COPYING in the main directory of this source tree, or the | |||||
* OpenIB.org BSD license below: | |||||
* | |||||
* Redistribution and use in source and binary forms, with or | |||||
* without modification, are permitted provided that the following | |||||
* conditions are met: | |||||
* | |||||
* - Redistributions of source code must retain the above | |||||
* copyright notice, this list of conditions and the following | |||||
* disclaimer. | |||||
* | |||||
* - Redistributions in binary form must reproduce the above | |||||
* copyright notice, this list of conditions and the following | |||||
* disclaimer in the documentation and/or other materials | |||||
* provided with the distribution. | |||||
* | |||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |||||
* SOFTWARE. | |||||
*/ | |||||
#include "rdma_core.h" | |||||
#include "uverbs.h" | |||||
#include <rdma/uverbs_std_types.h> | |||||
static int uverbs_free_dm(struct ib_uobject *uobject, | |||||
enum rdma_remove_reason why, | |||||
struct uverbs_attr_bundle *attrs) | |||||
{ | |||||
struct ib_dm *dm = uobject->object; | |||||
int ret; | |||||
ret = ib_destroy_usecnt(&dm->usecnt, why, uobject); | |||||
if (ret) | |||||
return ret; | |||||
return dm->device->dealloc_dm(dm, attrs); | |||||
} | |||||
static int UVERBS_HANDLER(UVERBS_METHOD_DM_ALLOC)( | |||||
struct uverbs_attr_bundle *attrs) | |||||
{ | |||||
struct ib_dm_alloc_attr attr = {}; | |||||
struct ib_uobject *uobj = | |||||
uverbs_attr_get(attrs, UVERBS_ATTR_ALLOC_DM_HANDLE) | |||||
->obj_attr.uobject; | |||||
struct ib_device *ib_dev = attrs->context->device; | |||||
struct ib_dm *dm; | |||||
int ret; | |||||
if (!ib_dev->alloc_dm) | |||||
return -EOPNOTSUPP; | |||||
ret = uverbs_copy_from(&attr.length, attrs, | |||||
UVERBS_ATTR_ALLOC_DM_LENGTH); | |||||
if (ret) | |||||
return ret; | |||||
ret = uverbs_copy_from(&attr.alignment, attrs, | |||||
UVERBS_ATTR_ALLOC_DM_ALIGNMENT); | |||||
if (ret) | |||||
return ret; | |||||
dm = ib_dev->alloc_dm(ib_dev, attrs->context, &attr, attrs); | |||||
if (IS_ERR(dm)) | |||||
return PTR_ERR(dm); | |||||
dm->device = ib_dev; | |||||
dm->length = attr.length; | |||||
dm->uobject = uobj; | |||||
atomic_set(&dm->usecnt, 0); | |||||
uobj->object = dm; | |||||
return 0; | |||||
} | |||||
DECLARE_UVERBS_NAMED_METHOD( | |||||
UVERBS_METHOD_DM_ALLOC, | |||||
UVERBS_ATTR_IDR(UVERBS_ATTR_ALLOC_DM_HANDLE, | |||||
UVERBS_OBJECT_DM, | |||||
UVERBS_ACCESS_NEW, | |||||
UA_MANDATORY), | |||||
UVERBS_ATTR_PTR_IN(UVERBS_ATTR_ALLOC_DM_LENGTH, | |||||
UVERBS_ATTR_TYPE(u64), | |||||
UA_MANDATORY), | |||||
UVERBS_ATTR_PTR_IN(UVERBS_ATTR_ALLOC_DM_ALIGNMENT, | |||||
UVERBS_ATTR_TYPE(u32), | |||||
UA_MANDATORY)); | |||||
DECLARE_UVERBS_NAMED_METHOD_DESTROY( | |||||
UVERBS_METHOD_DM_FREE, | |||||
UVERBS_ATTR_IDR(UVERBS_ATTR_FREE_DM_HANDLE, | |||||
UVERBS_OBJECT_DM, | |||||
UVERBS_ACCESS_DESTROY, | |||||
UA_MANDATORY)); | |||||
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_DM, | |||||
UVERBS_TYPE_ALLOC_IDR(uverbs_free_dm), | |||||
&UVERBS_METHOD(UVERBS_METHOD_DM_ALLOC), | |||||
&UVERBS_METHOD(UVERBS_METHOD_DM_FREE)); | |||||
const struct uapi_definition uverbs_def_obj_dm[] = { | |||||
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_DM, | |||||
UAPI_DEF_OBJ_NEEDS_FN(dealloc_dm)), | |||||
{} | |||||
}; |