1 /* 2 * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef MLX5_IB_USER_H 34 #define MLX5_IB_USER_H 35 36 #include <linux/types.h> 37 38 enum { 39 MLX5_QP_FLAG_SIGNATURE = 1 << 0, 40 MLX5_QP_FLAG_SCATTER_CQE = 1 << 1, 41 }; 42 43 enum { 44 MLX5_SRQ_FLAG_SIGNATURE = 1 << 0, 45 }; 46 47 48 /* Increment this value if any changes that break userspace ABI 49 * compatibility are made. 50 */ 51 #define MLX5_IB_UVERBS_ABI_VERSION 1 52 53 /* Make sure that all structs defined in this file remain laid out so 54 * that they pack the same way on 32-bit and 64-bit architectures (to 55 * avoid incompatibility between 32-bit userspace and 64-bit kernels). 56 * In particular do not use pointer types -- pass pointers in __u64 57 * instead. 58 */ 59 60 struct mlx5_ib_alloc_ucontext_req { 61 __u32 total_num_uuars; 62 __u32 num_low_latency_uuars; 63 }; 64 65 struct mlx5_ib_alloc_ucontext_req_v2 { 66 __u32 total_num_uuars; 67 __u32 num_low_latency_uuars; 68 __u32 flags; 69 __u32 reserved; 70 }; 71 72 struct mlx5_ib_alloc_ucontext_resp { 73 __u32 qp_tab_size; 74 __u32 bf_reg_size; 75 __u32 tot_uuars; 76 __u32 cache_line_size; 77 __u16 max_sq_desc_sz; 78 __u16 max_rq_desc_sz; 79 __u32 max_send_wqebb; 80 __u32 max_recv_wr; 81 __u32 max_srq_recv_wr; 82 __u16 num_ports; 83 __u16 reserved; 84 }; 85 86 struct mlx5_ib_alloc_pd_resp { 87 __u32 pdn; 88 }; 89 90 struct mlx5_ib_create_cq { 91 __u64 buf_addr; 92 __u64 db_addr; 93 __u32 cqe_size; 94 __u32 reserved; /* explicit padding (optional on i386) */ 95 }; 96 97 struct mlx5_ib_create_cq_resp { 98 __u32 cqn; 99 __u32 reserved; 100 }; 101 102 struct mlx5_ib_resize_cq { 103 __u64 buf_addr; 104 __u16 cqe_size; 105 __u16 reserved0; 106 __u32 reserved1; 107 }; 108 109 struct mlx5_ib_create_srq { 110 __u64 buf_addr; 111 __u64 db_addr; 112 __u32 flags; 113 __u32 reserved; /* explicit padding (optional on i386) */ 114 }; 115 116 struct mlx5_ib_create_srq_resp { 117 __u32 srqn; 118 __u32 reserved; 119 }; 120 121 struct mlx5_ib_create_qp { 122 __u64 buf_addr; 123 __u64 db_addr; 124 __u32 sq_wqe_count; 125 __u32 rq_wqe_count; 126 __u32 rq_wqe_shift; 127 __u32 flags; 128 }; 129 130 struct mlx5_ib_create_qp_resp { 131 __u32 uuar_index; 132 }; 133 #endif /* MLX5_IB_USER_H */ 134