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
 56struct mlx4_ib_alloc_ucontext_resp_v3 {
 57	__u32	qp_tab_size;
 58	__u16	bf_reg_size;
 59	__u16	bf_regs_per_page;
 60};
 61
 62enum {
 63	MLX4_USER_DEV_CAP_LARGE_CQE	= 1L << 0,
 64};
 65
 66struct 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
 74struct mlx4_ib_alloc_pd_resp {
 75	__u32	pdn;
 76	__u32	reserved;
 77};
 78
 79struct mlx4_ib_create_cq {
 80	__aligned_u64 buf_addr;
 81	__aligned_u64 db_addr;
 82};
 83
 84struct mlx4_ib_create_cq_resp {
 85	__u32	cqn;
 86	__u32	reserved;
 87};
 88
 89struct mlx4_ib_resize_cq {
 90	__aligned_u64 buf_addr;
 91};
 92
 93struct mlx4_ib_create_srq {
 94	__aligned_u64 buf_addr;
 95	__aligned_u64 db_addr;
 96};
 97
 98struct mlx4_ib_create_srq_resp {
 99	__u32	srqn;
100	__u32	reserved;
101};
102
103struct 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
112struct 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
122struct 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
130struct mlx4_ib_modify_wq {
131	__u32	comp_mask;
132	__u32	reserved;
133};
134
135struct mlx4_ib_create_rwq_ind_tbl_resp {
136	__u32	response_length;
137	__u32	reserved;
138};
139
140/* RX Hash function flags */
141enum 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 */
151enum 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
163struct 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
169enum query_device_resp_mask {
170	MLX4_IB_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0,
171};
172
173struct 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
181struct 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 */