xref: /OK3568_Linux_fs/kernel/include/uapi/rdma/rdma_user_rxe.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * This software is available to you under a choice of one of two
6*4882a593Smuzhiyun  * licenses.  You may choose to be licensed under the terms of the GNU
7*4882a593Smuzhiyun  * General Public License (GPL) Version 2, available from the file
8*4882a593Smuzhiyun  * COPYING in the main directory of this source tree, or the
9*4882a593Smuzhiyun  * OpenIB.org BSD license below:
10*4882a593Smuzhiyun  *
11*4882a593Smuzhiyun  *     Redistribution and use in source and binary forms, with or
12*4882a593Smuzhiyun  *     without modification, are permitted provided that the following
13*4882a593Smuzhiyun  *     conditions are met:
14*4882a593Smuzhiyun  *
15*4882a593Smuzhiyun  *	- Redistributions of source code must retain the above
16*4882a593Smuzhiyun  *	  copyright notice, this list of conditions and the following
17*4882a593Smuzhiyun  *	  disclaimer.
18*4882a593Smuzhiyun  *
19*4882a593Smuzhiyun  *	- Redistributions in binary form must reproduce the above
20*4882a593Smuzhiyun  *	  copyright notice, this list of conditions and the following
21*4882a593Smuzhiyun  *	  disclaimer in the documentation and/or other materials
22*4882a593Smuzhiyun  *	  provided with the distribution.
23*4882a593Smuzhiyun  *
24*4882a593Smuzhiyun  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25*4882a593Smuzhiyun  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26*4882a593Smuzhiyun  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27*4882a593Smuzhiyun  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28*4882a593Smuzhiyun  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29*4882a593Smuzhiyun  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30*4882a593Smuzhiyun  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31*4882a593Smuzhiyun  * SOFTWARE.
32*4882a593Smuzhiyun  */
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun #ifndef RDMA_USER_RXE_H
35*4882a593Smuzhiyun #define RDMA_USER_RXE_H
36*4882a593Smuzhiyun 
37*4882a593Smuzhiyun #include <linux/types.h>
38*4882a593Smuzhiyun #include <linux/socket.h>
39*4882a593Smuzhiyun #include <linux/in.h>
40*4882a593Smuzhiyun #include <linux/in6.h>
41*4882a593Smuzhiyun 
42*4882a593Smuzhiyun enum {
43*4882a593Smuzhiyun 	RXE_NETWORK_TYPE_IPV4 = 1,
44*4882a593Smuzhiyun 	RXE_NETWORK_TYPE_IPV6 = 2,
45*4882a593Smuzhiyun };
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun union rxe_gid {
48*4882a593Smuzhiyun 	__u8	raw[16];
49*4882a593Smuzhiyun 	struct {
50*4882a593Smuzhiyun 		__be64	subnet_prefix;
51*4882a593Smuzhiyun 		__be64	interface_id;
52*4882a593Smuzhiyun 	} global;
53*4882a593Smuzhiyun };
54*4882a593Smuzhiyun 
55*4882a593Smuzhiyun struct rxe_global_route {
56*4882a593Smuzhiyun 	union rxe_gid	dgid;
57*4882a593Smuzhiyun 	__u32		flow_label;
58*4882a593Smuzhiyun 	__u8		sgid_index;
59*4882a593Smuzhiyun 	__u8		hop_limit;
60*4882a593Smuzhiyun 	__u8		traffic_class;
61*4882a593Smuzhiyun };
62*4882a593Smuzhiyun 
63*4882a593Smuzhiyun struct rxe_av {
64*4882a593Smuzhiyun 	__u8			port_num;
65*4882a593Smuzhiyun 	/* From RXE_NETWORK_TYPE_* */
66*4882a593Smuzhiyun 	__u8			network_type;
67*4882a593Smuzhiyun 	__u8			dmac[6];
68*4882a593Smuzhiyun 	struct rxe_global_route	grh;
69*4882a593Smuzhiyun 	union {
70*4882a593Smuzhiyun 		struct sockaddr_in	_sockaddr_in;
71*4882a593Smuzhiyun 		struct sockaddr_in6	_sockaddr_in6;
72*4882a593Smuzhiyun 	} sgid_addr, dgid_addr;
73*4882a593Smuzhiyun };
74*4882a593Smuzhiyun 
75*4882a593Smuzhiyun struct rxe_send_wr {
76*4882a593Smuzhiyun 	__aligned_u64		wr_id;
77*4882a593Smuzhiyun 	__u32			num_sge;
78*4882a593Smuzhiyun 	__u32			opcode;
79*4882a593Smuzhiyun 	__u32			send_flags;
80*4882a593Smuzhiyun 	union {
81*4882a593Smuzhiyun 		__be32		imm_data;
82*4882a593Smuzhiyun 		__u32		invalidate_rkey;
83*4882a593Smuzhiyun 	} ex;
84*4882a593Smuzhiyun 	union {
85*4882a593Smuzhiyun 		struct {
86*4882a593Smuzhiyun 			__aligned_u64 remote_addr;
87*4882a593Smuzhiyun 			__u32	rkey;
88*4882a593Smuzhiyun 			__u32	reserved;
89*4882a593Smuzhiyun 		} rdma;
90*4882a593Smuzhiyun 		struct {
91*4882a593Smuzhiyun 			__aligned_u64 remote_addr;
92*4882a593Smuzhiyun 			__aligned_u64 compare_add;
93*4882a593Smuzhiyun 			__aligned_u64 swap;
94*4882a593Smuzhiyun 			__u32	rkey;
95*4882a593Smuzhiyun 			__u32	reserved;
96*4882a593Smuzhiyun 		} atomic;
97*4882a593Smuzhiyun 		struct {
98*4882a593Smuzhiyun 			__u32	remote_qpn;
99*4882a593Smuzhiyun 			__u32	remote_qkey;
100*4882a593Smuzhiyun 			__u16	pkey_index;
101*4882a593Smuzhiyun 		} ud;
102*4882a593Smuzhiyun 		/* reg is only used by the kernel and is not part of the uapi */
103*4882a593Smuzhiyun 		struct {
104*4882a593Smuzhiyun 			union {
105*4882a593Smuzhiyun 				struct ib_mr *mr;
106*4882a593Smuzhiyun 				__aligned_u64 reserved;
107*4882a593Smuzhiyun 			};
108*4882a593Smuzhiyun 			__u32	     key;
109*4882a593Smuzhiyun 			__u32	     access;
110*4882a593Smuzhiyun 		} reg;
111*4882a593Smuzhiyun 	} wr;
112*4882a593Smuzhiyun };
113*4882a593Smuzhiyun 
114*4882a593Smuzhiyun struct rxe_sge {
115*4882a593Smuzhiyun 	__aligned_u64 addr;
116*4882a593Smuzhiyun 	__u32	length;
117*4882a593Smuzhiyun 	__u32	lkey;
118*4882a593Smuzhiyun };
119*4882a593Smuzhiyun 
120*4882a593Smuzhiyun struct mminfo {
121*4882a593Smuzhiyun 	__aligned_u64		offset;
122*4882a593Smuzhiyun 	__u32			size;
123*4882a593Smuzhiyun 	__u32			pad;
124*4882a593Smuzhiyun };
125*4882a593Smuzhiyun 
126*4882a593Smuzhiyun struct rxe_dma_info {
127*4882a593Smuzhiyun 	__u32			length;
128*4882a593Smuzhiyun 	__u32			resid;
129*4882a593Smuzhiyun 	__u32			cur_sge;
130*4882a593Smuzhiyun 	__u32			num_sge;
131*4882a593Smuzhiyun 	__u32			sge_offset;
132*4882a593Smuzhiyun 	__u32			reserved;
133*4882a593Smuzhiyun 	union {
134*4882a593Smuzhiyun 		__u8		inline_data[0];
135*4882a593Smuzhiyun 		struct rxe_sge	sge[0];
136*4882a593Smuzhiyun 	};
137*4882a593Smuzhiyun };
138*4882a593Smuzhiyun 
139*4882a593Smuzhiyun struct rxe_send_wqe {
140*4882a593Smuzhiyun 	struct rxe_send_wr	wr;
141*4882a593Smuzhiyun 	struct rxe_av		av;
142*4882a593Smuzhiyun 	__u32			status;
143*4882a593Smuzhiyun 	__u32			state;
144*4882a593Smuzhiyun 	__aligned_u64		iova;
145*4882a593Smuzhiyun 	__u32			mask;
146*4882a593Smuzhiyun 	__u32			first_psn;
147*4882a593Smuzhiyun 	__u32			last_psn;
148*4882a593Smuzhiyun 	__u32			ack_length;
149*4882a593Smuzhiyun 	__u32			ssn;
150*4882a593Smuzhiyun 	__u32			has_rd_atomic;
151*4882a593Smuzhiyun 	struct rxe_dma_info	dma;
152*4882a593Smuzhiyun };
153*4882a593Smuzhiyun 
154*4882a593Smuzhiyun struct rxe_recv_wqe {
155*4882a593Smuzhiyun 	__aligned_u64		wr_id;
156*4882a593Smuzhiyun 	__u32			num_sge;
157*4882a593Smuzhiyun 	__u32			padding;
158*4882a593Smuzhiyun 	struct rxe_dma_info	dma;
159*4882a593Smuzhiyun };
160*4882a593Smuzhiyun 
161*4882a593Smuzhiyun struct rxe_create_cq_resp {
162*4882a593Smuzhiyun 	struct mminfo mi;
163*4882a593Smuzhiyun };
164*4882a593Smuzhiyun 
165*4882a593Smuzhiyun struct rxe_resize_cq_resp {
166*4882a593Smuzhiyun 	struct mminfo mi;
167*4882a593Smuzhiyun };
168*4882a593Smuzhiyun 
169*4882a593Smuzhiyun struct rxe_create_qp_resp {
170*4882a593Smuzhiyun 	struct mminfo rq_mi;
171*4882a593Smuzhiyun 	struct mminfo sq_mi;
172*4882a593Smuzhiyun };
173*4882a593Smuzhiyun 
174*4882a593Smuzhiyun struct rxe_create_srq_resp {
175*4882a593Smuzhiyun 	struct mminfo mi;
176*4882a593Smuzhiyun 	__u32 srq_num;
177*4882a593Smuzhiyun 	__u32 reserved;
178*4882a593Smuzhiyun };
179*4882a593Smuzhiyun 
180*4882a593Smuzhiyun struct rxe_modify_srq_cmd {
181*4882a593Smuzhiyun 	__aligned_u64 mmap_info_addr;
182*4882a593Smuzhiyun };
183*4882a593Smuzhiyun 
184*4882a593Smuzhiyun #endif /* RDMA_USER_RXE_H */
185