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1 | /* |
2 | * Copyright (c) 2012-2016 VMware, Inc. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of EITHER the GNU General Public License | |
6 | * version 2 as published by the Free Software Foundation or the BSD | |
7 | * 2-Clause License. This program is distributed in the hope that it | |
8 | * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED | |
9 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. | |
10 | * See the GNU General Public License version 2 for more details at | |
11 | * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program available in the file COPYING in the main | |
15 | * directory of this source tree. | |
16 | * | |
17 | * The BSD 2-Clause License | |
18 | * | |
19 | * Redistribution and use in source and binary forms, with or | |
20 | * without modification, are permitted provided that the following | |
21 | * conditions are met: | |
22 | * | |
23 | * - Redistributions of source code must retain the above | |
24 | * copyright notice, this list of conditions and the following | |
25 | * disclaimer. | |
26 | * | |
27 | * - Redistributions in binary form must reproduce the above | |
28 | * copyright notice, this list of conditions and the following | |
29 | * disclaimer in the documentation and/or other materials | |
30 | * provided with the distribution. | |
31 | * | |
32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
33 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
34 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
35 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
36 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
37 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
38 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
39 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
40 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
41 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
42 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
43 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
44 | */ | |
45 | ||
46 | #ifndef __VMW_PVRDMA_ABI_H__ | |
47 | #define __VMW_PVRDMA_ABI_H__ | |
48 | ||
49 | #include <linux/types.h> | |
50 | ||
51 | #define PVRDMA_UVERBS_ABI_VERSION 3 /* ABI Version. */ | |
52 | #define PVRDMA_UAR_HANDLE_MASK 0x00FFFFFF /* Bottom 24 bits. */ | |
53 | #define PVRDMA_UAR_QP_OFFSET 0 /* QP doorbell. */ | |
54 | #define PVRDMA_UAR_QP_SEND BIT(30) /* Send bit. */ | |
55 | #define PVRDMA_UAR_QP_RECV BIT(31) /* Recv bit. */ | |
56 | #define PVRDMA_UAR_CQ_OFFSET 4 /* CQ doorbell. */ | |
57 | #define PVRDMA_UAR_CQ_ARM_SOL BIT(29) /* Arm solicited bit. */ | |
58 | #define PVRDMA_UAR_CQ_ARM BIT(30) /* Arm bit. */ | |
59 | #define PVRDMA_UAR_CQ_POLL BIT(31) /* Poll bit. */ | |
60 | ||
61 | enum pvrdma_wr_opcode { | |
62 | PVRDMA_WR_RDMA_WRITE, | |
63 | PVRDMA_WR_RDMA_WRITE_WITH_IMM, | |
64 | PVRDMA_WR_SEND, | |
65 | PVRDMA_WR_SEND_WITH_IMM, | |
66 | PVRDMA_WR_RDMA_READ, | |
67 | PVRDMA_WR_ATOMIC_CMP_AND_SWP, | |
68 | PVRDMA_WR_ATOMIC_FETCH_AND_ADD, | |
69 | PVRDMA_WR_LSO, | |
70 | PVRDMA_WR_SEND_WITH_INV, | |
71 | PVRDMA_WR_RDMA_READ_WITH_INV, | |
72 | PVRDMA_WR_LOCAL_INV, | |
73 | PVRDMA_WR_FAST_REG_MR, | |
74 | PVRDMA_WR_MASKED_ATOMIC_CMP_AND_SWP, | |
75 | PVRDMA_WR_MASKED_ATOMIC_FETCH_AND_ADD, | |
76 | PVRDMA_WR_BIND_MW, | |
77 | PVRDMA_WR_REG_SIG_MR, | |
78 | }; | |
79 | ||
80 | enum pvrdma_wc_status { | |
81 | PVRDMA_WC_SUCCESS, | |
82 | PVRDMA_WC_LOC_LEN_ERR, | |
83 | PVRDMA_WC_LOC_QP_OP_ERR, | |
84 | PVRDMA_WC_LOC_EEC_OP_ERR, | |
85 | PVRDMA_WC_LOC_PROT_ERR, | |
86 | PVRDMA_WC_WR_FLUSH_ERR, | |
87 | PVRDMA_WC_MW_BIND_ERR, | |
88 | PVRDMA_WC_BAD_RESP_ERR, | |
89 | PVRDMA_WC_LOC_ACCESS_ERR, | |
90 | PVRDMA_WC_REM_INV_REQ_ERR, | |
91 | PVRDMA_WC_REM_ACCESS_ERR, | |
92 | PVRDMA_WC_REM_OP_ERR, | |
93 | PVRDMA_WC_RETRY_EXC_ERR, | |
94 | PVRDMA_WC_RNR_RETRY_EXC_ERR, | |
95 | PVRDMA_WC_LOC_RDD_VIOL_ERR, | |
96 | PVRDMA_WC_REM_INV_RD_REQ_ERR, | |
97 | PVRDMA_WC_REM_ABORT_ERR, | |
98 | PVRDMA_WC_INV_EECN_ERR, | |
99 | PVRDMA_WC_INV_EEC_STATE_ERR, | |
100 | PVRDMA_WC_FATAL_ERR, | |
101 | PVRDMA_WC_RESP_TIMEOUT_ERR, | |
102 | PVRDMA_WC_GENERAL_ERR, | |
103 | }; | |
104 | ||
105 | enum pvrdma_wc_opcode { | |
106 | PVRDMA_WC_SEND, | |
107 | PVRDMA_WC_RDMA_WRITE, | |
108 | PVRDMA_WC_RDMA_READ, | |
109 | PVRDMA_WC_COMP_SWAP, | |
110 | PVRDMA_WC_FETCH_ADD, | |
111 | PVRDMA_WC_BIND_MW, | |
112 | PVRDMA_WC_LSO, | |
113 | PVRDMA_WC_LOCAL_INV, | |
114 | PVRDMA_WC_FAST_REG_MR, | |
115 | PVRDMA_WC_MASKED_COMP_SWAP, | |
116 | PVRDMA_WC_MASKED_FETCH_ADD, | |
117 | PVRDMA_WC_RECV = 1 << 7, | |
118 | PVRDMA_WC_RECV_RDMA_WITH_IMM, | |
119 | }; | |
120 | ||
121 | enum pvrdma_wc_flags { | |
122 | PVRDMA_WC_GRH = 1 << 0, | |
123 | PVRDMA_WC_WITH_IMM = 1 << 1, | |
124 | PVRDMA_WC_WITH_INVALIDATE = 1 << 2, | |
125 | PVRDMA_WC_IP_CSUM_OK = 1 << 3, | |
126 | PVRDMA_WC_WITH_SMAC = 1 << 4, | |
127 | PVRDMA_WC_WITH_VLAN = 1 << 5, | |
128 | PVRDMA_WC_FLAGS_MAX = PVRDMA_WC_WITH_VLAN, | |
129 | }; | |
130 | ||
131 | struct pvrdma_alloc_ucontext_resp { | |
132 | __u32 qp_tab_size; | |
133 | __u32 reserved; | |
134 | }; | |
135 | ||
136 | struct pvrdma_alloc_pd_resp { | |
137 | __u32 pdn; | |
138 | __u32 reserved; | |
139 | }; | |
140 | ||
141 | struct pvrdma_create_cq { | |
142 | __u64 buf_addr; | |
143 | __u32 buf_size; | |
144 | __u32 reserved; | |
145 | }; | |
146 | ||
147 | struct pvrdma_create_cq_resp { | |
148 | __u32 cqn; | |
149 | __u32 reserved; | |
150 | }; | |
151 | ||
152 | struct pvrdma_resize_cq { | |
153 | __u64 buf_addr; | |
154 | __u32 buf_size; | |
155 | __u32 reserved; | |
156 | }; | |
157 | ||
158 | struct pvrdma_create_srq { | |
159 | __u64 buf_addr; | |
160 | }; | |
161 | ||
162 | struct pvrdma_create_srq_resp { | |
163 | __u32 srqn; | |
164 | __u32 reserved; | |
165 | }; | |
166 | ||
167 | struct pvrdma_create_qp { | |
168 | __u64 rbuf_addr; | |
169 | __u64 sbuf_addr; | |
170 | __u32 rbuf_size; | |
171 | __u32 sbuf_size; | |
172 | __u64 qp_addr; | |
173 | }; | |
174 | ||
175 | /* PVRDMA masked atomic compare and swap */ | |
176 | struct pvrdma_ex_cmp_swap { | |
177 | __u64 swap_val; | |
178 | __u64 compare_val; | |
179 | __u64 swap_mask; | |
180 | __u64 compare_mask; | |
181 | }; | |
182 | ||
183 | /* PVRDMA masked atomic fetch and add */ | |
184 | struct pvrdma_ex_fetch_add { | |
185 | __u64 add_val; | |
186 | __u64 field_boundary; | |
187 | }; | |
188 | ||
189 | /* PVRDMA address vector. */ | |
190 | struct pvrdma_av { | |
191 | __u32 port_pd; | |
192 | __u32 sl_tclass_flowlabel; | |
193 | __u8 dgid[16]; | |
194 | __u8 src_path_bits; | |
195 | __u8 gid_index; | |
196 | __u8 stat_rate; | |
197 | __u8 hop_limit; | |
198 | __u8 dmac[6]; | |
199 | __u8 reserved[6]; | |
200 | }; | |
201 | ||
202 | /* PVRDMA scatter/gather entry */ | |
203 | struct pvrdma_sge { | |
204 | __u64 addr; | |
205 | __u32 length; | |
206 | __u32 lkey; | |
207 | }; | |
208 | ||
209 | /* PVRDMA receive queue work request */ | |
210 | struct pvrdma_rq_wqe_hdr { | |
211 | __u64 wr_id; /* wr id */ | |
212 | __u32 num_sge; /* size of s/g array */ | |
213 | __u32 total_len; /* reserved */ | |
214 | }; | |
215 | /* Use pvrdma_sge (ib_sge) for receive queue s/g array elements. */ | |
216 | ||
217 | /* PVRDMA send queue work request */ | |
218 | struct pvrdma_sq_wqe_hdr { | |
219 | __u64 wr_id; /* wr id */ | |
220 | __u32 num_sge; /* size of s/g array */ | |
221 | __u32 total_len; /* reserved */ | |
222 | __u32 opcode; /* operation type */ | |
223 | __u32 send_flags; /* wr flags */ | |
224 | union { | |
225 | __u32 imm_data; | |
226 | __u32 invalidate_rkey; | |
227 | } ex; | |
228 | __u32 reserved; | |
229 | union { | |
230 | struct { | |
231 | __u64 remote_addr; | |
232 | __u32 rkey; | |
233 | __u8 reserved[4]; | |
234 | } rdma; | |
235 | struct { | |
236 | __u64 remote_addr; | |
237 | __u64 compare_add; | |
238 | __u64 swap; | |
239 | __u32 rkey; | |
240 | __u32 reserved; | |
241 | } atomic; | |
242 | struct { | |
243 | __u64 remote_addr; | |
244 | __u32 log_arg_sz; | |
245 | __u32 rkey; | |
246 | union { | |
247 | struct pvrdma_ex_cmp_swap cmp_swap; | |
248 | struct pvrdma_ex_fetch_add fetch_add; | |
249 | } wr_data; | |
250 | } masked_atomics; | |
251 | struct { | |
252 | __u64 iova_start; | |
253 | __u64 pl_pdir_dma; | |
254 | __u32 page_shift; | |
255 | __u32 page_list_len; | |
256 | __u32 length; | |
257 | __u32 access_flags; | |
258 | __u32 rkey; | |
259 | } fast_reg; | |
260 | struct { | |
261 | __u32 remote_qpn; | |
262 | __u32 remote_qkey; | |
263 | struct pvrdma_av av; | |
264 | } ud; | |
265 | } wr; | |
266 | }; | |
267 | /* Use pvrdma_sge (ib_sge) for send queue s/g array elements. */ | |
268 | ||
269 | /* Completion queue element. */ | |
270 | struct pvrdma_cqe { | |
271 | __u64 wr_id; | |
272 | __u64 qp; | |
273 | __u32 opcode; | |
274 | __u32 status; | |
275 | __u32 byte_len; | |
276 | __u32 imm_data; | |
277 | __u32 src_qp; | |
278 | __u32 wc_flags; | |
279 | __u32 vendor_err; | |
280 | __u16 pkey_index; | |
281 | __u16 slid; | |
282 | __u8 sl; | |
283 | __u8 dlid_path_bits; | |
284 | __u8 port_num; | |
285 | __u8 smac[6]; | |
286 | __u8 reserved2[7]; /* Pad to next power of 2 (64). */ | |
287 | }; | |
288 | ||
289 | #endif /* __VMW_PVRDMA_ABI_H__ */ |