mirror of https://gitee.com/openkylin/linux.git
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*
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* Copyright (c) 2017, Mellanox Technologies inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _UVERBS_IOCTL_
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#define _UVERBS_IOCTL_
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#include <rdma/uverbs_types.h>
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/*
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* =======================================
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* Verbs action specifications
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* =======================================
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*/
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enum uverbs_attr_type {
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UVERBS_ATTR_TYPE_NA,
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UVERBS_ATTR_TYPE_IDR,
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UVERBS_ATTR_TYPE_FD,
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};
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enum uverbs_obj_access {
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UVERBS_ACCESS_READ,
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UVERBS_ACCESS_WRITE,
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UVERBS_ACCESS_NEW,
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UVERBS_ACCESS_DESTROY
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};
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struct uverbs_attr_spec {
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enum uverbs_attr_type type;
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struct {
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/*
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* higher bits mean the namespace and lower bits mean
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* the type id within the namespace.
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*/
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u16 obj_type;
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u8 access;
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} obj;
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};
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struct uverbs_attr_spec_hash {
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size_t num_attrs;
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struct uverbs_attr_spec attrs[0];
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};
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struct uverbs_obj_attr {
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struct ib_uobject *uobject;
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};
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struct uverbs_attr {
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struct uverbs_obj_attr obj_attr;
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};
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struct uverbs_attr_bundle_hash {
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/* if bit i is set, it means attrs[i] contains valid information */
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unsigned long *valid_bitmap;
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size_t num_attrs;
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/*
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* arrays of attributes, each element corresponds to the specification
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* of the attribute in the same index.
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*/
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struct uverbs_attr *attrs;
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};
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struct uverbs_attr_bundle {
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size_t num_buckets;
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struct uverbs_attr_bundle_hash hash[];
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};
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static inline bool uverbs_attr_is_valid_in_hash(const struct uverbs_attr_bundle_hash *attrs_hash,
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unsigned int idx)
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{
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return test_bit(idx, attrs_hash->valid_bitmap);
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}
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#endif
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