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 */