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sys/ofed/drivers/infiniband/core/ib_uverbs_std_types_mr.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_mr(struct ib_uobject *uobject, | |||||
| enum rdma_remove_reason why, | |||||
| struct uverbs_attr_bundle *attrs) | |||||
| { | |||||
| return ib_dereg_mr_user((struct ib_mr *)uobject->object, | |||||
| &attrs->driver_udata); | |||||
| } | |||||
| static int UVERBS_HANDLER(UVERBS_METHOD_ADVISE_MR)( | |||||
| struct uverbs_attr_bundle *attrs) | |||||
| { | |||||
| struct ib_pd *pd = | |||||
| uverbs_attr_get_obj(attrs, UVERBS_ATTR_ADVISE_MR_PD_HANDLE); | |||||
| enum ib_uverbs_advise_mr_advice advice; | |||||
| struct ib_device *ib_dev = pd->device; | |||||
| const struct ib_sge *sg_list; | |||||
| int num_sge; | |||||
| u32 flags; | |||||
| int ret; | |||||
| /* FIXME: Extend the UAPI_DEF_OBJ_NEEDS_FN stuff.. */ | |||||
| if (!ib_dev->advise_mr) | |||||
| return -EOPNOTSUPP; | |||||
| ret = uverbs_get_const(&advice, attrs, UVERBS_ATTR_ADVISE_MR_ADVICE); | |||||
| if (ret) | |||||
| return ret; | |||||
| ret = uverbs_get_flags32(&flags, attrs, UVERBS_ATTR_ADVISE_MR_FLAGS, | |||||
| IB_UVERBS_ADVISE_MR_FLAG_FLUSH); | |||||
| if (ret) | |||||
| return ret; | |||||
| num_sge = uverbs_attr_ptr_get_array_size( | |||||
| attrs, UVERBS_ATTR_ADVISE_MR_SGE_LIST, sizeof(struct ib_sge)); | |||||
| if (num_sge < 0) | |||||
| return num_sge; | |||||
| sg_list = uverbs_attr_get_alloced_ptr(attrs, | |||||
| UVERBS_ATTR_ADVISE_MR_SGE_LIST); | |||||
| return ib_dev->advise_mr(pd, advice, flags, sg_list, num_sge, | |||||
| attrs); | |||||
| } | |||||
| static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)( | |||||
| struct uverbs_attr_bundle *attrs) | |||||
| { | |||||
| struct ib_dm_mr_attr attr = {}; | |||||
| struct ib_uobject *uobj = | |||||
| uverbs_attr_get_uobject(attrs, UVERBS_ATTR_REG_DM_MR_HANDLE); | |||||
| struct ib_dm *dm = | |||||
| uverbs_attr_get_obj(attrs, UVERBS_ATTR_REG_DM_MR_DM_HANDLE); | |||||
| struct ib_pd *pd = | |||||
| uverbs_attr_get_obj(attrs, UVERBS_ATTR_REG_DM_MR_PD_HANDLE); | |||||
| struct ib_device *ib_dev = pd->device; | |||||
| struct ib_mr *mr; | |||||
| int ret; | |||||
| if (!ib_dev->reg_dm_mr) | |||||
| return -EOPNOTSUPP; | |||||
| ret = uverbs_copy_from(&attr.offset, attrs, UVERBS_ATTR_REG_DM_MR_OFFSET); | |||||
| if (ret) | |||||
| return ret; | |||||
| ret = uverbs_copy_from(&attr.length, attrs, | |||||
| UVERBS_ATTR_REG_DM_MR_LENGTH); | |||||
| if (ret) | |||||
| return ret; | |||||
| ret = uverbs_get_flags32(&attr.access_flags, attrs, | |||||
| UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS, | |||||
| IB_ACCESS_SUPPORTED); | |||||
| if (ret) | |||||
| return ret; | |||||
| if (!(attr.access_flags & IB_ZERO_BASED)) | |||||
| return -EINVAL; | |||||
| ret = ib_check_mr_access(attr.access_flags); | |||||
| if (ret) | |||||
| return ret; | |||||
| if (attr.offset > dm->length || attr.length > dm->length || | |||||
| attr.length > dm->length - attr.offset) | |||||
| return -EINVAL; | |||||
| mr = pd->device->reg_dm_mr(pd, dm, &attr, attrs); | |||||
| if (IS_ERR(mr)) | |||||
| return PTR_ERR(mr); | |||||
| mr->device = pd->device; | |||||
| mr->pd = pd; | |||||
| mr->type = IB_MR_TYPE_DM; | |||||
| mr->dm = dm; | |||||
| mr->uobject = uobj; | |||||
| atomic_inc(&pd->usecnt); | |||||
| atomic_inc(&dm->usecnt); | |||||
| uobj->object = mr; | |||||
| ret = uverbs_copy_to(attrs, UVERBS_ATTR_REG_DM_MR_RESP_LKEY, &mr->lkey, | |||||
| sizeof(mr->lkey)); | |||||
| if (ret) | |||||
| goto err_dereg; | |||||
| ret = uverbs_copy_to(attrs, UVERBS_ATTR_REG_DM_MR_RESP_RKEY, | |||||
| &mr->rkey, sizeof(mr->rkey)); | |||||
| if (ret) | |||||
| goto err_dereg; | |||||
| return 0; | |||||
| err_dereg: | |||||
| ib_dereg_mr_user(mr, uverbs_get_cleared_udata(attrs)); | |||||
| return ret; | |||||
| } | |||||
| DECLARE_UVERBS_NAMED_METHOD( | |||||
| UVERBS_METHOD_ADVISE_MR, | |||||
| UVERBS_ATTR_IDR(UVERBS_ATTR_ADVISE_MR_PD_HANDLE, | |||||
| UVERBS_OBJECT_PD, | |||||
| UVERBS_ACCESS_READ, | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_CONST_IN(UVERBS_ATTR_ADVISE_MR_ADVICE, | |||||
| enum ib_uverbs_advise_mr_advice, | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_ADVISE_MR_FLAGS, | |||||
| enum ib_uverbs_advise_mr_flag, | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_PTR_IN(UVERBS_ATTR_ADVISE_MR_SGE_LIST, | |||||
| UVERBS_ATTR_MIN_SIZE(sizeof(struct ib_uverbs_sge)), | |||||
| UA_MANDATORY, | |||||
| UA_ALLOC_AND_COPY)); | |||||
| DECLARE_UVERBS_NAMED_METHOD( | |||||
| UVERBS_METHOD_DM_MR_REG, | |||||
| UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_HANDLE, | |||||
| UVERBS_OBJECT_MR, | |||||
| UVERBS_ACCESS_NEW, | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_OFFSET, | |||||
| UVERBS_ATTR_TYPE(u64), | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_LENGTH, | |||||
| UVERBS_ATTR_TYPE(u64), | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_PD_HANDLE, | |||||
| UVERBS_OBJECT_PD, | |||||
| UVERBS_ACCESS_READ, | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS, | |||||
| enum ib_access_flags), | |||||
| UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_DM_HANDLE, | |||||
| UVERBS_OBJECT_DM, | |||||
| UVERBS_ACCESS_READ, | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_REG_DM_MR_RESP_LKEY, | |||||
| UVERBS_ATTR_TYPE(u32), | |||||
| UA_MANDATORY), | |||||
| UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_REG_DM_MR_RESP_RKEY, | |||||
| UVERBS_ATTR_TYPE(u32), | |||||
| UA_MANDATORY)); | |||||
| DECLARE_UVERBS_NAMED_METHOD_DESTROY( | |||||
| UVERBS_METHOD_MR_DESTROY, | |||||
| UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_MR_HANDLE, | |||||
| UVERBS_OBJECT_MR, | |||||
| UVERBS_ACCESS_DESTROY, | |||||
| UA_MANDATORY)); | |||||
| DECLARE_UVERBS_NAMED_OBJECT( | |||||
| UVERBS_OBJECT_MR, | |||||
| UVERBS_TYPE_ALLOC_IDR(uverbs_free_mr), | |||||
| &UVERBS_METHOD(UVERBS_METHOD_DM_MR_REG), | |||||
| &UVERBS_METHOD(UVERBS_METHOD_MR_DESTROY), | |||||
| &UVERBS_METHOD(UVERBS_METHOD_ADVISE_MR)); | |||||
| const struct uapi_definition uverbs_def_obj_mr[] = { | |||||
| UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_MR, | |||||
| UAPI_DEF_OBJ_NEEDS_FN(dereg_mr)), | |||||
| {} | |||||
| }; | |||||