1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ 2 /* 3 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. 4 * Copyright (c) 2007, 2008 Mellanox Technologies. 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 MLX4_ABI_USER_H 36 #define MLX4_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 45 #define MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION 3 46 #define MLX4_IB_UVERBS_ABI_VERSION 4 47 48 /* 49 * Make sure that all structs defined in this file remain laid out so 50 * that they pack the same way on 32-bit and 64-bit architectures (to 51 * avoid incompatibility between 32-bit userspace and 64-bit kernels). 52 * In particular do not use pointer types -- pass pointers in __u64 53 * instead. 54 */ 55 56 struct mlx4_ib_alloc_ucontext_resp_v3 { 57 __u32 qp_tab_size; 58 __u16 bf_reg_size; 59 __u16 bf_regs_per_page; 60 }; 61 62 enum { 63 MLX4_USER_DEV_CAP_LARGE_CQE = 1L << 0, 64 }; 65 66 struct mlx4_ib_alloc_ucontext_resp { 67 __u32 dev_caps; 68 __u32 qp_tab_size; 69 __u16 bf_reg_size; 70 __u16 bf_regs_per_page; 71 __u32 cqe_size; 72 }; 73 74 struct mlx4_ib_alloc_pd_resp { 75 __u32 pdn; 76 __u32 reserved; 77 }; 78 79 struct mlx4_ib_create_cq { 80 __aligned_u64 buf_addr; 81 __aligned_u64 db_addr; 82 }; 83 84 struct mlx4_ib_create_cq_resp { 85 __u32 cqn; 86 __u32 reserved; 87 }; 88 89 struct mlx4_ib_resize_cq { 90 __aligned_u64 buf_addr; 91 }; 92 93 struct mlx4_ib_create_srq { 94 __aligned_u64 buf_addr; 95 __aligned_u64 db_addr; 96 }; 97 98 struct mlx4_ib_create_srq_resp { 99 __u32 srqn; 100 __u32 reserved; 101 }; 102 103 struct mlx4_ib_create_qp_rss { 104 __aligned_u64 rx_hash_fields_mask; /* Use enum mlx4_ib_rx_hash_fields */ 105 __u8 rx_hash_function; /* Use enum mlx4_ib_rx_hash_function_flags */ 106 __u8 reserved[7]; 107 __u8 rx_hash_key[40]; 108 __u32 comp_mask; 109 __u32 reserved1; 110 }; 111 112 struct mlx4_ib_create_qp { 113 __aligned_u64 buf_addr; 114 __aligned_u64 db_addr; 115 __u8 log_sq_bb_count; 116 __u8 log_sq_stride; 117 __u8 sq_no_prefetch; 118 __u8 reserved; 119 __u32 inl_recv_sz; 120 }; 121 122 struct mlx4_ib_create_wq { 123 __aligned_u64 buf_addr; 124 __aligned_u64 db_addr; 125 __u8 log_range_size; 126 __u8 reserved[3]; 127 __u32 comp_mask; 128 }; 129 130 struct mlx4_ib_modify_wq { 131 __u32 comp_mask; 132 __u32 reserved; 133 }; 134 135 struct mlx4_ib_create_rwq_ind_tbl_resp { 136 __u32 response_length; 137 __u32 reserved; 138 }; 139 140 /* RX Hash function flags */ 141 enum mlx4_ib_rx_hash_function_flags { 142 MLX4_IB_RX_HASH_FUNC_TOEPLITZ = 1 << 0, 143 }; 144 145 /* 146 * RX Hash flags, these flags allows to set which incoming packet's field should 147 * participates in RX Hash. Each flag represent certain packet's field, 148 * when the flag is set the field that is represented by the flag will 149 * participate in RX Hash calculation. 150 */ 151 enum mlx4_ib_rx_hash_fields { 152 MLX4_IB_RX_HASH_SRC_IPV4 = 1 << 0, 153 MLX4_IB_RX_HASH_DST_IPV4 = 1 << 1, 154 MLX4_IB_RX_HASH_SRC_IPV6 = 1 << 2, 155 MLX4_IB_RX_HASH_DST_IPV6 = 1 << 3, 156 MLX4_IB_RX_HASH_SRC_PORT_TCP = 1 << 4, 157 MLX4_IB_RX_HASH_DST_PORT_TCP = 1 << 5, 158 MLX4_IB_RX_HASH_SRC_PORT_UDP = 1 << 6, 159 MLX4_IB_RX_HASH_DST_PORT_UDP = 1 << 7, 160 MLX4_IB_RX_HASH_INNER = 1ULL << 31, 161 }; 162 163 struct mlx4_ib_rss_caps { 164 __aligned_u64 rx_hash_fields_mask; /* enum mlx4_ib_rx_hash_fields */ 165 __u8 rx_hash_function; /* enum mlx4_ib_rx_hash_function_flags */ 166 __u8 reserved[7]; 167 }; 168 169 enum query_device_resp_mask { 170 MLX4_IB_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0, 171 }; 172 173 struct mlx4_ib_tso_caps { 174 __u32 max_tso; /* Maximum tso payload size in bytes */ 175 /* Corresponding bit will be set if qp type from 176 * 'enum ib_qp_type' is supported. 177 */ 178 __u32 supported_qpts; 179 }; 180 181 struct mlx4_uverbs_ex_query_device_resp { 182 __u32 comp_mask; 183 __u32 response_length; 184 __aligned_u64 hca_core_clock_offset; 185 __u32 max_inl_recv_sz; 186 __u32 reserved; 187 struct mlx4_ib_rss_caps rss_caps; 188 struct mlx4_ib_tso_caps tso_caps; 189 }; 190 191 #endif /* MLX4_ABI_USER_H */ 192