uapi/rdma/mthca-abi.h

0001 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
0002 /*
0003  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
0004  * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
0005  *
0006  * This software is available to you under a choice of one of two
0007  * licenses.  You may choose to be licensed under the terms of the GNU
0008  * General Public License (GPL) Version 2, available from the file
0009  * COPYING in the main directory of this source tree, or the
0010  * OpenIB.org BSD license below:
0011  *
0012  *     Redistribution and use in source and binary forms, with or
0013  *     without modification, are permitted provided that the following
0014  *     conditions are met:
0015  *
0016  *      - Redistributions of source code must retain the above
0017  *        copyright notice, this list of conditions and the following
0018  *        disclaimer.
0019  *
0020  *      - Redistributions in binary form must reproduce the above
0021  *        copyright notice, this list of conditions and the following
0022  *        disclaimer in the documentation and/or other materials
0023  *        provided with the distribution.
0024  *
0025  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0026  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0027  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0028  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
0029  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
0030  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
0031  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
0032  * SOFTWARE.
0033  */
0034
0035 #ifndef MTHCA_ABI_USER_H
0036 #define MTHCA_ABI_USER_H
0037
0038 #include <linux/types.h>
0039
0040 /*
0041  * Increment this value if any changes that break userspace ABI
0042  * compatibility are made.
0043  */
0044 #define MTHCA_UVERBS_ABI_VERSION    1
0045
0046 /*
0047  * Make sure that all structs defined in this file remain laid out so
0048  * that they pack the same way on 32-bit and 64-bit architectures (to
0049  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
0050  * In particular do not use pointer types -- pass pointers in __u64
0051  * instead.
0052  */
0053 struct mthca_alloc_ucontext_resp {
0054     __u32 qp_tab_size;
0055     __u32 uarc_size;
0056 };
0057
0058 struct mthca_alloc_pd_resp {
0059     __u32 pdn;
0060     __u32 reserved;
0061 };
0062
0063 /*
0064  * Mark the memory region with a DMA attribute that causes
0065  * in-flight DMA to be flushed when the region is written to:
0066  */
0067 #define MTHCA_MR_DMASYNC    0x1
0068
0069 struct mthca_reg_mr {
0070     __u32 mr_attrs;
0071     __u32 reserved;
0072 };
0073
0074 struct mthca_create_cq {
0075     __u32 lkey;
0076     __u32 pdn;
0077     __aligned_u64 arm_db_page;
0078     __aligned_u64 set_db_page;
0079     __u32 arm_db_index;
0080     __u32 set_db_index;
0081 };
0082
0083 struct mthca_create_cq_resp {
0084     __u32 cqn;
0085     __u32 reserved;
0086 };
0087
0088 struct mthca_resize_cq {
0089     __u32 lkey;
0090     __u32 reserved;
0091 };
0092
0093 struct mthca_create_srq {
0094     __u32 lkey;
0095     __u32 db_index;
0096     __aligned_u64 db_page;
0097 };
0098
0099 struct mthca_create_srq_resp {
0100     __u32 srqn;
0101     __u32 reserved;
0102 };
0103
0104 struct mthca_create_qp {
0105     __u32 lkey;
0106     __u32 reserved;
0107     __aligned_u64 sq_db_page;
0108     __aligned_u64 rq_db_page;
0109     __u32 sq_db_index;
0110     __u32 rq_db_index;
0111 };
0112 #endif /* MTHCA_ABI_USER_H */