Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm / fab97220c9e409a98b1956ba677ddd2dd43b0b95 / . / drivers / infiniband / hw / ehca / ehca_qes.h
blob: 8707d297ce4c60a1747424068599e220d194b10d [file] [log] [blame]
Heiko J Schickfab97222006-09-22 15:22:22 -0700[diff] [blame^]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
49/* virtual scatter gather entry to specify remote adresses with length */
50struct ehca_vsgentry {
51 u64 vaddr;
52 u32 lkey;
53 u32 length;
54};
55
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)
63
64/*
65 * Unreliable Datagram Address Vector Format
66 * see IBTA Vol1 chapter 8.3 Global Routing Header
67 */
68struct 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
137struct 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 {
151 u64 remote_virtual_adress;
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
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)
213#define WC_STATUS_ERROR_BIT 0x80000000
214#define WC_STATUS_REMOTE_ERROR_FLAGS 0x0000F800
215#define WC_STATUS_PURGE_BIT 0x10
216
217struct ehca_cqe {
218 u64 work_request_id;
219 u8 optype;
220 u8 w_completion_flags;
221 u16 reserved1;
222 u32 nr_bytes_transferred;
223 u32 immediate_data;
224 u32 local_qp_number;
225 u8 freed_resource_count;
226 u8 service_level;
227 u16 wqe_count;
228 u32 qp_token;
229 u32 qkey_ee_token;
230 u32 remote_qp_number;
231 u16 dlid;
232 u16 rlid;
233 u16 reserved2;
234 u16 pkey_index;
235 u32 cqe_timestamp;
236 u32 wqe_timestamp;
237 u8 wqe_timestamp_valid;
238 u8 reserved3;
239 u8 reserved4;
240 u8 cqe_flags;
241 u32 status;
242};
243
244struct ehca_eqe {
245 u64 entry;
246};
247
248struct ehca_mrte {
249 u64 starting_va;
250 u64 length; /* length of memory region in bytes*/
251 u32 pd;
252 u8 key_instance;
253 u8 pagesize;
254 u8 mr_control;
255 u8 local_remote_access_ctrl;
256 u8 reserved[0x20 - 0x18];
257 u64 at_pointer[4];
258};
259#endif /*_EHCA_QES_H_*/