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fab97220 HS |
1 | /* |
2 | * IBM eServer eHCA Infiniband device driver for Linux on POWER | |
3 | * | |
4 | * Hardware request structures | |
5 | * | |
6 | * Authors: Waleri Fomin <fomin@de.ibm.com> | |
7 | * Reinhard Ernst <rernst@de.ibm.com> | |
8 | * Christoph Raisch <raisch@de.ibm.com> | |
9 | * | |
10 | * Copyright (c) 2005 IBM Corporation | |
11 | * | |
12 | * All rights reserved. | |
13 | * | |
14 | * This source code is distributed under a dual license of GPL v2.0 and OpenIB | |
15 | * BSD. | |
16 | * | |
17 | * OpenIB BSD License | |
18 | * | |
19 | * Redistribution and use in source and binary forms, with or without | |
20 | * modification, are permitted provided that the following conditions are met: | |
21 | * | |
22 | * Redistributions of source code must retain the above copyright notice, this | |
23 | * list of conditions and the following disclaimer. | |
24 | * | |
25 | * Redistributions in binary form must reproduce the above copyright notice, | |
26 | * this list of conditions and the following disclaimer in the documentation | |
27 | * and/or other materials | |
28 | * provided with the distribution. | |
29 | * | |
30 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
31 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
32 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
33 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
34 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
35 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
36 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
37 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
38 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
39 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
40 | * POSSIBILITY OF SUCH DAMAGE. | |
41 | */ | |
42 | ||
43 | ||
44 | #ifndef _EHCA_QES_H_ | |
45 | #define _EHCA_QES_H_ | |
46 | ||
47 | #include "ehca_tools.h" | |
48 | ||
3ad2f3fb | 49 | /* virtual scatter gather entry to specify remote addresses with length */ |
fab97220 HS |
50 | struct ehca_vsgentry { |
51 | u64 vaddr; | |
52 | u32 lkey; | |
53 | u32 length; | |
54 | }; | |
55 | ||
2b94397a HNN |
56 | #define GRH_FLAG_MASK EHCA_BMASK_IBM( 7, 7) |
57 | #define GRH_IPVERSION_MASK EHCA_BMASK_IBM( 0, 3) | |
58 | #define GRH_TCLASS_MASK EHCA_BMASK_IBM( 4, 12) | |
59 | #define GRH_FLOWLABEL_MASK EHCA_BMASK_IBM(13, 31) | |
60 | #define GRH_PAYLEN_MASK EHCA_BMASK_IBM(32, 47) | |
61 | #define GRH_NEXTHEADER_MASK EHCA_BMASK_IBM(48, 55) | |
62 | #define GRH_HOPLIMIT_MASK EHCA_BMASK_IBM(56, 63) | |
fab97220 HS |
63 | |
64 | /* | |
65 | * Unreliable Datagram Address Vector Format | |
66 | * see IBTA Vol1 chapter 8.3 Global Routing Header | |
67 | */ | |
68 | struct ehca_ud_av { | |
69 | u8 sl; | |
70 | u8 lnh; | |
71 | u16 dlid; | |
72 | u8 reserved1; | |
73 | u8 reserved2; | |
74 | u8 reserved3; | |
75 | u8 slid_path_bits; | |
76 | u8 reserved4; | |
77 | u8 ipd; | |
78 | u8 reserved5; | |
79 | u8 pmtu; | |
80 | u32 reserved6; | |
81 | u64 reserved7; | |
82 | union { | |
83 | struct { | |
84 | u64 word_0; /* always set to 6 */ | |
85 | /*should be 0x1B for IB transport */ | |
86 | u64 word_1; | |
87 | u64 word_2; | |
88 | u64 word_3; | |
89 | u64 word_4; | |
90 | } grh; | |
91 | struct { | |
92 | u32 wd_0; | |
93 | u32 wd_1; | |
94 | /* DWord_1 --> SGID */ | |
95 | ||
96 | u32 sgid_wd3; | |
97 | u32 sgid_wd2; | |
98 | ||
99 | u32 sgid_wd1; | |
100 | u32 sgid_wd0; | |
101 | /* DWord_3 --> DGID */ | |
102 | ||
103 | u32 dgid_wd3; | |
104 | u32 dgid_wd2; | |
105 | ||
106 | u32 dgid_wd1; | |
107 | u32 dgid_wd0; | |
108 | } grh_l; | |
109 | }; | |
110 | }; | |
111 | ||
112 | /* maximum number of sg entries allowed in a WQE */ | |
113 | #define MAX_WQE_SG_ENTRIES 252 | |
114 | ||
115 | #define WQE_OPTYPE_SEND 0x80 | |
116 | #define WQE_OPTYPE_RDMAREAD 0x40 | |
117 | #define WQE_OPTYPE_RDMAWRITE 0x20 | |
118 | #define WQE_OPTYPE_CMPSWAP 0x10 | |
119 | #define WQE_OPTYPE_FETCHADD 0x08 | |
120 | #define WQE_OPTYPE_BIND 0x04 | |
121 | ||
122 | #define WQE_WRFLAG_REQ_SIGNAL_COM 0x80 | |
123 | #define WQE_WRFLAG_FENCE 0x40 | |
124 | #define WQE_WRFLAG_IMM_DATA_PRESENT 0x20 | |
125 | #define WQE_WRFLAG_SOLIC_EVENT 0x10 | |
126 | ||
127 | #define WQEF_CACHE_HINT 0x80 | |
128 | #define WQEF_CACHE_HINT_RD_WR 0x40 | |
129 | #define WQEF_TIMED_WQE 0x20 | |
130 | #define WQEF_PURGE 0x08 | |
131 | #define WQEF_HIGH_NIBBLE 0xF0 | |
132 | ||
133 | #define MW_BIND_ACCESSCTRL_R_WRITE 0x40 | |
134 | #define MW_BIND_ACCESSCTRL_R_READ 0x20 | |
135 | #define MW_BIND_ACCESSCTRL_R_ATOMIC 0x10 | |
136 | ||
137 | struct ehca_wqe { | |
138 | u64 work_request_id; | |
139 | u8 optype; | |
140 | u8 wr_flag; | |
141 | u16 pkeyi; | |
142 | u8 wqef; | |
143 | u8 nr_of_data_seg; | |
144 | u16 wqe_provided_slid; | |
145 | u32 destination_qp_number; | |
146 | u32 resync_psn_sqp; | |
147 | u32 local_ee_context_qkey; | |
148 | u32 immediate_data; | |
149 | union { | |
150 | struct { | |
3ad2f3fb | 151 | u64 remote_virtual_address; |
fab97220 HS |
152 | u32 rkey; |
153 | u32 reserved; | |
154 | u64 atomic_1st_op_dma_len; | |
155 | u64 atomic_2nd_op; | |
156 | struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES]; | |
157 | ||
158 | } nud; | |
159 | struct { | |
160 | u64 ehca_ud_av_ptr; | |
161 | u64 reserved1; | |
162 | u64 reserved2; | |
163 | u64 reserved3; | |
164 | struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES]; | |
165 | } ud_avp; | |
166 | struct { | |
167 | struct ehca_ud_av ud_av; | |
168 | struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES - | |
169 | 2]; | |
170 | } ud_av; | |
171 | struct { | |
172 | u64 reserved0; | |
173 | u64 reserved1; | |
174 | u64 reserved2; | |
175 | u64 reserved3; | |
176 | struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES]; | |
177 | } all_rcv; | |
178 | ||
179 | struct { | |
180 | u64 reserved; | |
181 | u32 rkey; | |
182 | u32 old_rkey; | |
183 | u64 reserved1; | |
184 | u64 reserved2; | |
185 | u64 virtual_address; | |
186 | u32 reserved3; | |
187 | u32 length; | |
188 | u32 reserved4; | |
189 | u16 reserved5; | |
190 | u8 reserved6; | |
191 | u8 lr_ctl; | |
192 | u32 lkey; | |
193 | u32 reserved7; | |
194 | u64 reserved8; | |
195 | u64 reserved9; | |
196 | u64 reserved10; | |
197 | u64 reserved11; | |
198 | } bind; | |
199 | struct { | |
200 | u64 reserved12; | |
201 | u64 reserved13; | |
202 | u32 size; | |
203 | u32 start; | |
204 | } inline_data; | |
205 | } u; | |
206 | ||
207 | }; | |
208 | ||
2b94397a HNN |
209 | #define WC_SEND_RECEIVE EHCA_BMASK_IBM(0, 0) |
210 | #define WC_IMM_DATA EHCA_BMASK_IBM(1, 1) | |
211 | #define WC_GRH_PRESENT EHCA_BMASK_IBM(2, 2) | |
212 | #define WC_SE_BIT EHCA_BMASK_IBM(3, 3) | |
fab97220 HS |
213 | #define WC_STATUS_ERROR_BIT 0x80000000 |
214 | #define WC_STATUS_REMOTE_ERROR_FLAGS 0x0000F800 | |
215 | #define WC_STATUS_PURGE_BIT 0x10 | |
6773f079 | 216 | #define WC_SEND_RECEIVE_BIT 0x80 |
fab97220 HS |
217 | |
218 | struct ehca_cqe { | |
219 | u64 work_request_id; | |
220 | u8 optype; | |
221 | u8 w_completion_flags; | |
222 | u16 reserved1; | |
223 | u32 nr_bytes_transferred; | |
224 | u32 immediate_data; | |
225 | u32 local_qp_number; | |
226 | u8 freed_resource_count; | |
227 | u8 service_level; | |
228 | u16 wqe_count; | |
229 | u32 qp_token; | |
230 | u32 qkey_ee_token; | |
231 | u32 remote_qp_number; | |
232 | u16 dlid; | |
233 | u16 rlid; | |
234 | u16 reserved2; | |
235 | u16 pkey_index; | |
236 | u32 cqe_timestamp; | |
237 | u32 wqe_timestamp; | |
238 | u8 wqe_timestamp_valid; | |
239 | u8 reserved3; | |
240 | u8 reserved4; | |
241 | u8 cqe_flags; | |
242 | u32 status; | |
243 | }; | |
244 | ||
245 | struct ehca_eqe { | |
246 | u64 entry; | |
247 | }; | |
248 | ||
249 | struct ehca_mrte { | |
250 | u64 starting_va; | |
251 | u64 length; /* length of memory region in bytes*/ | |
252 | u32 pd; | |
253 | u8 key_instance; | |
254 | u8 pagesize; | |
255 | u8 mr_control; | |
256 | u8 local_remote_access_ctrl; | |
257 | u8 reserved[0x20 - 0x18]; | |
258 | u64 at_pointer[4]; | |
259 | }; | |
260 | #endif /*_EHCA_QES_H_*/ |