1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
2 /*
3 * Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.
4 */
5
6 #ifndef EFA_ABI_USER_H
7 #define EFA_ABI_USER_H
8
9 #include <linux/types.h>
10 #include <rdma/ib_user_ioctl_cmds.h>
11
12 /*
13 * Increment this value if any changes that break userspace ABI
14 * compatibility are made.
15 */
16 #define EFA_UVERBS_ABI_VERSION 1
17
18 /*
19 * Keep structs aligned to 8 bytes.
20 * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the
21 * hex bit offset of the field.
22 */
23
24 enum {
25 EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH = 1 << 0,
26 EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1,
27 };
28
29 struct efa_ibv_alloc_ucontext_cmd {
30 __u32 comp_mask;
31 __u8 reserved_20[4];
32 };
33
34 enum efa_ibv_user_cmds_supp_udata {
35 EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,
36 EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1,
37 };
38
39 struct efa_ibv_alloc_ucontext_resp {
40 __u32 comp_mask;
41 __u32 cmds_supp_udata_mask;
42 __u16 sub_cqs_per_cq;
43 __u16 inline_buf_size;
44 __u32 max_llq_size; /* bytes */
45 __u16 max_tx_batch; /* units of 64 bytes */
46 __u16 min_sq_wr;
47 __u8 reserved_a0[4];
48 };
49
50 struct efa_ibv_alloc_pd_resp {
51 __u32 comp_mask;
52 __u16 pdn;
53 __u8 reserved_30[2];
54 };
55
56 enum {
57 EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0,
58 EFA_CREATE_CQ_WITH_SGID = 1 << 1,
59 };
60
61 struct efa_ibv_create_cq {
62 __u32 comp_mask;
63 __u32 cq_entry_size;
64 __u16 num_sub_cqs;
65 __u8 flags;
66 __u8 reserved_58[5];
67 };
68
69 enum {
70 EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0,
71 };
72
73 struct efa_ibv_create_cq_resp {
74 __u32 comp_mask;
75 __u8 reserved_20[4];
76 __aligned_u64 q_mmap_key;
77 __aligned_u64 q_mmap_size;
78 __u16 cq_idx;
79 __u8 reserved_d0[2];
80 __u32 db_off;
81 __aligned_u64 db_mmap_key;
82 };
83
84 enum {
85 EFA_QP_DRIVER_TYPE_SRD = 0,
86 };
87
88 enum {
89 EFA_CREATE_QP_WITH_UNSOLICITED_WRITE_RECV = 1 << 0,
90 };
91
92 struct efa_ibv_create_qp {
93 __u32 comp_mask;
94 __u32 rq_ring_size; /* bytes */
95 __u32 sq_ring_size; /* bytes */
96 __u32 driver_qp_type;
97 __u16 flags;
98 __u8 reserved_90[6];
99 };
100
101 struct efa_ibv_create_qp_resp {
102 __u32 comp_mask;
103 /* the offset inside the page of the rq db */
104 __u32 rq_db_offset;
105 /* the offset inside the page of the sq db */
106 __u32 sq_db_offset;
107 /* the offset inside the page of descriptors buffer */
108 __u32 llq_desc_offset;
109 __aligned_u64 rq_mmap_key;
110 __aligned_u64 rq_mmap_size;
111 __aligned_u64 rq_db_mmap_key;
112 __aligned_u64 sq_db_mmap_key;
113 __aligned_u64 llq_desc_mmap_key;
114 __u16 send_sub_cq_idx;
115 __u16 recv_sub_cq_idx;
116 __u8 reserved_1e0[4];
117 };
118
119 struct efa_ibv_create_ah_resp {
120 __u32 comp_mask;
121 __u16 efa_address_handle;
122 __u8 reserved_30[2];
123 };
124
125 enum {
126 EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0,
127 EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,
128 EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2,
129 EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3,
130 EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4,
131 EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5,
132 EFA_QUERY_DEVICE_CAPS_UNSOLICITED_WRITE_RECV = 1 << 6,
133 };
134
135 struct efa_ibv_ex_query_device_resp {
136 __u32 comp_mask;
137 __u32 max_sq_wr;
138 __u32 max_rq_wr;
139 __u16 max_sq_sge;
140 __u16 max_rq_sge;
141 __u32 max_rdma_size;
142 __u32 device_caps;
143 };
144
145 enum {
146 EFA_QUERY_MR_VALIDITY_RECV_IC_ID = 1 << 0,
147 EFA_QUERY_MR_VALIDITY_RDMA_READ_IC_ID = 1 << 1,
148 EFA_QUERY_MR_VALIDITY_RDMA_RECV_IC_ID = 1 << 2,
149 };
150
151 enum efa_query_mr_attrs {
152 EFA_IB_ATTR_QUERY_MR_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
153 EFA_IB_ATTR_QUERY_MR_RESP_IC_ID_VALIDITY,
154 EFA_IB_ATTR_QUERY_MR_RESP_RECV_IC_ID,
155 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_READ_IC_ID,
156 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_RECV_IC_ID,
157 };
158
159 enum efa_mr_methods {
160 EFA_IB_METHOD_MR_QUERY = (1U << UVERBS_ID_NS_SHIFT),
161 };
162
163 #endif /* EFA_ABI_USER_H */
164
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