include/uapi/rdma/mlx4-abi.h

   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 */