xref: /openbmc/linux/include/uapi/rdma/cxgb4-abi.h (revision 7effbd18)
1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
2 /*
3  * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
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 CXGB4_ABI_USER_H
34 #define CXGB4_ABI_USER_H
35 
36 #include <linux/types.h>
37 
38 #define C4IW_UVERBS_ABI_VERSION	3
39 
40 /*
41  * Make sure that all structs defined in this file remain laid out so
42  * that they pack the same way on 32-bit and 64-bit architectures (to
43  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
44  * In particular do not use pointer types -- pass pointers in __aligned_u64
45  * instead.
46  */
47 
48 enum {
49 	C4IW_64B_CQE = (1 << 0)
50 };
51 
52 struct c4iw_create_cq {
53 	__u32 flags;
54 	__u32 reserved;
55 };
56 
57 struct c4iw_create_cq_resp {
58 	__aligned_u64 key;
59 	__aligned_u64 gts_key;
60 	__aligned_u64 memsize;
61 	__u32 cqid;
62 	__u32 size;
63 	__u32 qid_mask;
64 	__u32 flags;
65 };
66 
67 enum {
68 	C4IW_QPF_ONCHIP	= (1 << 0),
69 	C4IW_QPF_WRITE_W_IMM = (1 << 1)
70 };
71 
72 struct c4iw_create_qp_resp {
73 	__aligned_u64 ma_sync_key;
74 	__aligned_u64 sq_key;
75 	__aligned_u64 rq_key;
76 	__aligned_u64 sq_db_gts_key;
77 	__aligned_u64 rq_db_gts_key;
78 	__aligned_u64 sq_memsize;
79 	__aligned_u64 rq_memsize;
80 	__u32 sqid;
81 	__u32 rqid;
82 	__u32 sq_size;
83 	__u32 rq_size;
84 	__u32 qid_mask;
85 	__u32 flags;
86 };
87 
88 struct c4iw_create_srq_resp {
89 	__aligned_u64 srq_key;
90 	__aligned_u64 srq_db_gts_key;
91 	__aligned_u64 srq_memsize;
92 	__u32 srqid;
93 	__u32 srq_size;
94 	__u32 rqt_abs_idx;
95 	__u32 qid_mask;
96 	__u32 flags;
97 	__u32 reserved; /* explicit padding */
98 };
99 
100 enum {
101 	/* HW supports SRQ_LIMIT_REACHED event */
102 	T4_SRQ_LIMIT_SUPPORT = 1 << 0,
103 };
104 
105 struct c4iw_alloc_ucontext_resp {
106 	__aligned_u64 status_page_key;
107 	__u32 status_page_size;
108 	__u32 reserved; /* explicit padding (optional for i386) */
109 };
110 
111 struct c4iw_alloc_pd_resp {
112 	__u32 pdid;
113 };
114 
115 #endif /* CXGB4_ABI_USER_H */
116