xref: /freebsd/sys/dev/qlnx/qlnxr/qlnxr_user.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)
1 /*
2  * Copyright (c) 2018-2019 Cavium, Inc.
3  * All rights reserved.
4  *
5  *  Redistribution and use in source and binary forms, with or without
6  *  modification, are permitted provided that the following conditions
7  *  are met:
8  *
9  *  1. Redistributions of source code must retain the above copyright
10  *     notice, this list of conditions and the following disclaimer.
11  *  2. Redistributions in binary form must reproduce the above copyright
12  *     notice, this list of conditions and the following disclaimer in the
13  *     documentation and/or other materials provided with the distribution.
14  *
15  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25  *  POSSIBILITY OF SUCH DAMAGE.
26  *
27  */
28 
29 #ifndef __QLNXR_USER_H__
30 #define __QLNXR_USER_H__
31 
32 #define QLNXR_ABI_VERSION		(7)
33 #define QLNXR_BE_ROCE_ABI_VERSION	(1)
34 
35 /* user kernel communication data structures. */
36 
37 struct qlnxr_alloc_ucontext_resp {
38 	u64 db_pa;
39 	u32 db_size;
40 
41 	uint32_t max_send_wr;
42 	uint32_t max_recv_wr;
43 	uint32_t max_srq_wr;
44 	uint32_t sges_per_send_wr;
45 	uint32_t sges_per_recv_wr;
46 	uint32_t sges_per_srq_wr;
47 	int max_cqes;
48 	uint8_t dpm_enabled;
49 	uint8_t wids_enabled;
50 	uint16_t wid_count;
51 };
52 
53 struct qlnxr_alloc_pd_ureq {
54 	u64 rsvd1;
55 };
56 
57 struct qlnxr_alloc_pd_uresp {
58 	u32 pd_id;
59 };
60 
61 struct qlnxr_create_cq_ureq {
62 	uint64_t addr;		/* user space virtual address of CQ buffer */
63 	size_t len;		/* size of CQ buffer */
64 };
65 
66 struct qlnxr_create_cq_uresp {
67 	u32 db_offset;
68 	u16 icid;
69 };
70 
71 struct qlnxr_create_qp_ureq {
72 	u32 qp_handle_hi;
73 	u32 qp_handle_lo;
74 
75 	/* SQ */
76 	uint64_t sq_addr;	/* user space virtual address of SQ buffer */
77 	size_t sq_len;		/* length of SQ buffer */
78 
79 	/* RQ */
80 	uint64_t rq_addr;	/* user space virtual address of RQ buffer */
81 	size_t rq_len;		/* length of RQ buffer */
82 };
83 
84 struct qlnxr_create_qp_uresp {
85 	u32 qp_id;
86 	int atomic_supported;
87 
88 	/* SQ*/
89 	u32 sq_db_offset;
90 	u16 sq_icid;
91 
92 	/* RQ */
93 	u32 rq_db_offset;
94 	u16 rq_icid;
95 
96 	u32 rq_db2_offset;
97 };
98 
99 struct qlnxr_create_srq_ureq {
100 	/* user space virtual address of producer pair */
101 	uint64_t prod_pair_addr;
102 	uint64_t srq_addr;	/* user space virtual address of SQ buffer */
103 	size_t srq_len;		/* length of SQ buffer */
104 };
105 
106 struct qlnxr_create_srq_uresp {
107 	u16 srq_id;
108 };
109 
110 #endif	/* #ifndef __QLNXR_USER_H__ */
111