1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ 2 /* 3 * Copyright (c) 2005 Topspin Communications. All rights reserved. 4 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 35 #ifndef MTHCA_ABI_USER_H 36 #define MTHCA_ABI_USER_H 37 38 #include <linux/types.h> 39 40 /* 41 * Increment this value if any changes that break userspace ABI 42 * compatibility are made. 43 */ 44 #define MTHCA_UVERBS_ABI_VERSION 1 45 46 /* 47 * Make sure that all structs defined in this file remain laid out so 48 * that they pack the same way on 32-bit and 64-bit architectures (to 49 * avoid incompatibility between 32-bit userspace and 64-bit kernels). 50 * In particular do not use pointer types -- pass pointers in __u64 51 * instead. 52 */ 53 struct mthca_alloc_ucontext_resp { 54 __u32 qp_tab_size; 55 __u32 uarc_size; 56 }; 57 58 struct mthca_alloc_pd_resp { 59 __u32 pdn; 60 __u32 reserved; 61 }; 62 63 /* 64 * Mark the memory region with a DMA attribute that causes 65 * in-flight DMA to be flushed when the region is written to: 66 */ 67 #define MTHCA_MR_DMASYNC 0x1 68 69 struct mthca_reg_mr { 70 __u32 mr_attrs; 71 __u32 reserved; 72 }; 73 74 struct mthca_create_cq { 75 __u32 lkey; 76 __u32 pdn; 77 __aligned_u64 arm_db_page; 78 __aligned_u64 set_db_page; 79 __u32 arm_db_index; 80 __u32 set_db_index; 81 }; 82 83 struct mthca_create_cq_resp { 84 __u32 cqn; 85 __u32 reserved; 86 }; 87 88 struct mthca_resize_cq { 89 __u32 lkey; 90 __u32 reserved; 91 }; 92 93 struct mthca_create_srq { 94 __u32 lkey; 95 __u32 db_index; 96 __aligned_u64 db_page; 97 }; 98 99 struct mthca_create_srq_resp { 100 __u32 srqn; 101 __u32 reserved; 102 }; 103 104 struct mthca_create_qp { 105 __u32 lkey; 106 __u32 reserved; 107 __aligned_u64 sq_db_page; 108 __aligned_u64 rq_db_page; 109 __u32 sq_db_index; 110 __u32 rq_db_index; 111 }; 112 #endif /* MTHCA_ABI_USER_H */ 113