xref: /OK3568_Linux_fs/kernel/include/uapi/rdma/efa-abi.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Copyright 2018-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
4*4882a593Smuzhiyun  */
5*4882a593Smuzhiyun 
6*4882a593Smuzhiyun #ifndef EFA_ABI_USER_H
7*4882a593Smuzhiyun #define EFA_ABI_USER_H
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #include <linux/types.h>
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun /*
12*4882a593Smuzhiyun  * Increment this value if any changes that break userspace ABI
13*4882a593Smuzhiyun  * compatibility are made.
14*4882a593Smuzhiyun  */
15*4882a593Smuzhiyun #define EFA_UVERBS_ABI_VERSION 1
16*4882a593Smuzhiyun 
17*4882a593Smuzhiyun /*
18*4882a593Smuzhiyun  * Keep structs aligned to 8 bytes.
19*4882a593Smuzhiyun  * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the
20*4882a593Smuzhiyun  * hex bit offset of the field.
21*4882a593Smuzhiyun  */
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun enum {
24*4882a593Smuzhiyun 	EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH  = 1 << 0,
25*4882a593Smuzhiyun 	EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1,
26*4882a593Smuzhiyun };
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun struct efa_ibv_alloc_ucontext_cmd {
29*4882a593Smuzhiyun 	__u32 comp_mask;
30*4882a593Smuzhiyun 	__u8 reserved_20[4];
31*4882a593Smuzhiyun };
32*4882a593Smuzhiyun 
33*4882a593Smuzhiyun enum efa_ibv_user_cmds_supp_udata {
34*4882a593Smuzhiyun 	EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,
35*4882a593Smuzhiyun 	EFA_USER_CMDS_SUPP_UDATA_CREATE_AH    = 1 << 1,
36*4882a593Smuzhiyun };
37*4882a593Smuzhiyun 
38*4882a593Smuzhiyun struct efa_ibv_alloc_ucontext_resp {
39*4882a593Smuzhiyun 	__u32 comp_mask;
40*4882a593Smuzhiyun 	__u32 cmds_supp_udata_mask;
41*4882a593Smuzhiyun 	__u16 sub_cqs_per_cq;
42*4882a593Smuzhiyun 	__u16 inline_buf_size;
43*4882a593Smuzhiyun 	__u32 max_llq_size; /* bytes */
44*4882a593Smuzhiyun 	__u16 max_tx_batch; /* units of 64 bytes */
45*4882a593Smuzhiyun 	__u16 min_sq_wr;
46*4882a593Smuzhiyun 	__u8 reserved_a0[4];
47*4882a593Smuzhiyun };
48*4882a593Smuzhiyun 
49*4882a593Smuzhiyun struct efa_ibv_alloc_pd_resp {
50*4882a593Smuzhiyun 	__u32 comp_mask;
51*4882a593Smuzhiyun 	__u16 pdn;
52*4882a593Smuzhiyun 	__u8 reserved_30[2];
53*4882a593Smuzhiyun };
54*4882a593Smuzhiyun 
55*4882a593Smuzhiyun struct efa_ibv_create_cq {
56*4882a593Smuzhiyun 	__u32 comp_mask;
57*4882a593Smuzhiyun 	__u32 cq_entry_size;
58*4882a593Smuzhiyun 	__u16 num_sub_cqs;
59*4882a593Smuzhiyun 	__u8 reserved_50[6];
60*4882a593Smuzhiyun };
61*4882a593Smuzhiyun 
62*4882a593Smuzhiyun struct efa_ibv_create_cq_resp {
63*4882a593Smuzhiyun 	__u32 comp_mask;
64*4882a593Smuzhiyun 	__u8 reserved_20[4];
65*4882a593Smuzhiyun 	__aligned_u64 q_mmap_key;
66*4882a593Smuzhiyun 	__aligned_u64 q_mmap_size;
67*4882a593Smuzhiyun 	__u16 cq_idx;
68*4882a593Smuzhiyun 	__u8 reserved_d0[6];
69*4882a593Smuzhiyun };
70*4882a593Smuzhiyun 
71*4882a593Smuzhiyun enum {
72*4882a593Smuzhiyun 	EFA_QP_DRIVER_TYPE_SRD = 0,
73*4882a593Smuzhiyun };
74*4882a593Smuzhiyun 
75*4882a593Smuzhiyun struct efa_ibv_create_qp {
76*4882a593Smuzhiyun 	__u32 comp_mask;
77*4882a593Smuzhiyun 	__u32 rq_ring_size; /* bytes */
78*4882a593Smuzhiyun 	__u32 sq_ring_size; /* bytes */
79*4882a593Smuzhiyun 	__u32 driver_qp_type;
80*4882a593Smuzhiyun };
81*4882a593Smuzhiyun 
82*4882a593Smuzhiyun struct efa_ibv_create_qp_resp {
83*4882a593Smuzhiyun 	__u32 comp_mask;
84*4882a593Smuzhiyun 	/* the offset inside the page of the rq db */
85*4882a593Smuzhiyun 	__u32 rq_db_offset;
86*4882a593Smuzhiyun 	/* the offset inside the page of the sq db */
87*4882a593Smuzhiyun 	__u32 sq_db_offset;
88*4882a593Smuzhiyun 	/* the offset inside the page of descriptors buffer */
89*4882a593Smuzhiyun 	__u32 llq_desc_offset;
90*4882a593Smuzhiyun 	__aligned_u64 rq_mmap_key;
91*4882a593Smuzhiyun 	__aligned_u64 rq_mmap_size;
92*4882a593Smuzhiyun 	__aligned_u64 rq_db_mmap_key;
93*4882a593Smuzhiyun 	__aligned_u64 sq_db_mmap_key;
94*4882a593Smuzhiyun 	__aligned_u64 llq_desc_mmap_key;
95*4882a593Smuzhiyun 	__u16 send_sub_cq_idx;
96*4882a593Smuzhiyun 	__u16 recv_sub_cq_idx;
97*4882a593Smuzhiyun 	__u8 reserved_1e0[4];
98*4882a593Smuzhiyun };
99*4882a593Smuzhiyun 
100*4882a593Smuzhiyun struct efa_ibv_create_ah_resp {
101*4882a593Smuzhiyun 	__u32 comp_mask;
102*4882a593Smuzhiyun 	__u16 efa_address_handle;
103*4882a593Smuzhiyun 	__u8 reserved_30[2];
104*4882a593Smuzhiyun };
105*4882a593Smuzhiyun 
106*4882a593Smuzhiyun enum {
107*4882a593Smuzhiyun 	EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0,
108*4882a593Smuzhiyun 	EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,
109*4882a593Smuzhiyun };
110*4882a593Smuzhiyun 
111*4882a593Smuzhiyun struct efa_ibv_ex_query_device_resp {
112*4882a593Smuzhiyun 	__u32 comp_mask;
113*4882a593Smuzhiyun 	__u32 max_sq_wr;
114*4882a593Smuzhiyun 	__u32 max_rq_wr;
115*4882a593Smuzhiyun 	__u16 max_sq_sge;
116*4882a593Smuzhiyun 	__u16 max_rq_sge;
117*4882a593Smuzhiyun 	__u32 max_rdma_size;
118*4882a593Smuzhiyun 	__u32 device_caps;
119*4882a593Smuzhiyun };
120*4882a593Smuzhiyun 
121*4882a593Smuzhiyun #endif /* EFA_ABI_USER_H */
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