1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 3 * 4 * Copyright (c) 2005 Topspin Communications. All rights reserved. 5 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * OpenIB.org BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or 14 * without modification, are permitted provided that the following 15 * conditions are met: 16 * 17 * - Redistributions of source code must retain the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer. 20 * 21 * - Redistributions in binary form must reproduce the above 22 * copyright notice, this list of conditions and the following 23 * disclaimer in the documentation and/or other materials 24 * provided with the distribution. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 33 * SOFTWARE. 34 */ 35 36 #ifndef MTHCA_ABI_USER_H 37 #define MTHCA_ABI_USER_H 38 39 #include <linux/types.h> 40 41 /* 42 * Increment this value if any changes that break userspace ABI 43 * compatibility are made. 44 */ 45 #define MTHCA_UVERBS_ABI_VERSION 1 46 47 /* 48 * Make sure that all structs defined in this file remain laid out so 49 * that they pack the same way on 32-bit and 64-bit architectures (to 50 * avoid incompatibility between 32-bit userspace and 64-bit kernels). 51 * In particular do not use pointer types -- pass pointers in __u64 52 * instead. 53 */ 54 struct mthca_alloc_ucontext_resp { 55 __u32 qp_tab_size; 56 __u32 uarc_size; 57 }; 58 59 struct mthca_alloc_pd_resp { 60 __u32 pdn; 61 __u32 reserved; 62 }; 63 64 /* 65 * Mark the memory region with a DMA attribute that causes 66 * in-flight DMA to be flushed when the region is written to: 67 */ 68 #define MTHCA_MR_DMASYNC 0x1 69 70 struct mthca_reg_mr { 71 __u32 mr_attrs; 72 __u32 reserved; 73 }; 74 75 struct mthca_create_cq { 76 __u32 lkey; 77 __u32 pdn; 78 __u64 arm_db_page; 79 __u64 set_db_page; 80 __u32 arm_db_index; 81 __u32 set_db_index; 82 }; 83 84 struct mthca_create_cq_resp { 85 __u32 cqn; 86 __u32 reserved; 87 }; 88 89 struct mthca_resize_cq { 90 __u32 lkey; 91 __u32 reserved; 92 }; 93 94 struct mthca_create_srq { 95 __u32 lkey; 96 __u32 db_index; 97 __u64 db_page; 98 }; 99 100 struct mthca_create_srq_resp { 101 __u32 srqn; 102 __u32 reserved; 103 }; 104 105 struct mthca_create_qp { 106 __u32 lkey; 107 __u32 reserved; 108 __u64 sq_db_page; 109 __u64 rq_db_page; 110 __u32 sq_db_index; 111 __u32 rq_db_index; 112 }; 113 #endif /* MTHCA_ABI_USER_H */ 114