1 | /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ |
2 | /* QLogic qedr NIC Driver |
3 | * Copyright (c) 2015-2016 QLogic Corporation |
4 | * |
5 | * This software is available to you under a choice of one of two |
6 | * licenses. You may choose to be licensed under the terms of the GNU |
7 | * General Public License (GPL) Version 2, available from the file |
8 | * COPYING in the main directory of this source tree, or the |
9 | * OpenIB.org BSD license below: |
10 | * |
11 | * Redistribution and use in source and binary forms, with or |
12 | * without modification, are permitted provided that the following |
13 | * conditions are met: |
14 | * |
15 | * - Redistributions of source code must retain the above |
16 | * copyright notice, this list of conditions and the following |
17 | * disclaimer. |
18 | * |
19 | * - Redistributions in binary form must reproduce the above |
20 | * copyright notice, this list of conditions and the following |
21 | * disclaimer in the documentation and /or other materials |
22 | * provided with the distribution. |
23 | * |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
31 | * SOFTWARE. |
32 | */ |
33 | #ifndef __QEDR_USER_H__ |
34 | #define __QEDR_USER_H__ |
35 | |
36 | #include <linux/types.h> |
37 | |
38 | #define QEDR_ABI_VERSION (8) |
39 | |
40 | /* user kernel communication data structures. */ |
41 | enum qedr_alloc_ucontext_flags { |
42 | QEDR_ALLOC_UCTX_EDPM_MODE = 1 << 0, |
43 | QEDR_ALLOC_UCTX_DB_REC = 1 << 1, |
44 | QEDR_SUPPORT_DPM_SIZES = 1 << 2, |
45 | }; |
46 | |
47 | struct qedr_alloc_ucontext_req { |
48 | __u32 context_flags; |
49 | __u32 reserved; |
50 | }; |
51 | |
52 | #define QEDR_LDPM_MAX_SIZE (8192) |
53 | #define QEDR_EDPM_TRANS_SIZE (64) |
54 | #define QEDR_EDPM_MAX_SIZE (ROCE_REQ_MAX_INLINE_DATA_SIZE) |
55 | |
56 | enum qedr_rdma_dpm_type { |
57 | QEDR_DPM_TYPE_NONE = 0, |
58 | QEDR_DPM_TYPE_ROCE_ENHANCED = 1 << 0, |
59 | QEDR_DPM_TYPE_ROCE_LEGACY = 1 << 1, |
60 | QEDR_DPM_TYPE_IWARP_LEGACY = 1 << 2, |
61 | QEDR_DPM_TYPE_ROCE_EDPM_MODE = 1 << 3, |
62 | QEDR_DPM_SIZES_SET = 1 << 4, |
63 | }; |
64 | |
65 | struct qedr_alloc_ucontext_resp { |
66 | __aligned_u64 db_pa; |
67 | __u32 db_size; |
68 | |
69 | __u32 max_send_wr; |
70 | __u32 max_recv_wr; |
71 | __u32 max_srq_wr; |
72 | __u32 sges_per_send_wr; |
73 | __u32 sges_per_recv_wr; |
74 | __u32 sges_per_srq_wr; |
75 | __u32 max_cqes; |
76 | __u8 dpm_flags; |
77 | __u8 wids_enabled; |
78 | __u16 wid_count; |
79 | __u16 ldpm_limit_size; |
80 | __u8 edpm_trans_size; |
81 | __u8 reserved; |
82 | __u16 edpm_limit_size; |
83 | __u8 padding[6]; |
84 | }; |
85 | |
86 | struct qedr_alloc_pd_ureq { |
87 | __aligned_u64 rsvd1; |
88 | }; |
89 | |
90 | struct qedr_alloc_pd_uresp { |
91 | __u32 pd_id; |
92 | __u32 reserved; |
93 | }; |
94 | |
95 | struct qedr_create_cq_ureq { |
96 | __aligned_u64 addr; |
97 | __aligned_u64 len; |
98 | }; |
99 | |
100 | struct qedr_create_cq_uresp { |
101 | __u32 db_offset; |
102 | __u16 icid; |
103 | __u16 reserved; |
104 | __aligned_u64 db_rec_addr; |
105 | }; |
106 | |
107 | struct qedr_create_qp_ureq { |
108 | __u32 qp_handle_hi; |
109 | __u32 qp_handle_lo; |
110 | |
111 | /* SQ */ |
112 | /* user space virtual address of SQ buffer */ |
113 | __aligned_u64 sq_addr; |
114 | |
115 | /* length of SQ buffer */ |
116 | __aligned_u64 sq_len; |
117 | |
118 | /* RQ */ |
119 | /* user space virtual address of RQ buffer */ |
120 | __aligned_u64 rq_addr; |
121 | |
122 | /* length of RQ buffer */ |
123 | __aligned_u64 rq_len; |
124 | }; |
125 | |
126 | struct qedr_create_qp_uresp { |
127 | __u32 qp_id; |
128 | __u32 atomic_supported; |
129 | |
130 | /* SQ */ |
131 | __u32 sq_db_offset; |
132 | __u16 sq_icid; |
133 | |
134 | /* RQ */ |
135 | __u32 rq_db_offset; |
136 | __u16 rq_icid; |
137 | |
138 | __u32 rq_db2_offset; |
139 | __u32 reserved; |
140 | |
141 | /* address of SQ doorbell recovery user entry */ |
142 | __aligned_u64 sq_db_rec_addr; |
143 | |
144 | /* address of RQ doorbell recovery user entry */ |
145 | __aligned_u64 rq_db_rec_addr; |
146 | |
147 | }; |
148 | |
149 | struct qedr_create_srq_ureq { |
150 | /* user space virtual address of producer pair */ |
151 | __aligned_u64 prod_pair_addr; |
152 | |
153 | /* user space virtual address of SRQ buffer */ |
154 | __aligned_u64 srq_addr; |
155 | |
156 | /* length of SRQ buffer */ |
157 | __aligned_u64 srq_len; |
158 | }; |
159 | |
160 | struct qedr_create_srq_uresp { |
161 | __u16 srq_id; |
162 | __u16 reserved0; |
163 | __u32 reserved1; |
164 | }; |
165 | |
166 | /* doorbell recovery entry allocated and populated by userspace doorbelling |
167 | * entities and mapped to kernel. Kernel uses this to register doorbell |
168 | * information with doorbell drop recovery mechanism. |
169 | */ |
170 | struct qedr_user_db_rec { |
171 | __aligned_u64 db_data; /* doorbell data */ |
172 | }; |
173 | |
174 | #endif /* __QEDR_USER_H__ */ |
175 | |