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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004, 2005, Voltaire, Inc. All rights reserved. | |
fa619a77 HR |
3 | * Copyright (c) 2005 Intel Corporation. All rights reserved. |
4 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. | |
b76aabc3 | 5 | * Copyright (c) 2009 HNR Consulting. All rights reserved. |
1da177e4 LT |
6 | * |
7 | * This software is available to you under a choice of one of two | |
8 | * licenses. You may choose to be licensed under the terms of the GNU | |
9 | * General Public License (GPL) Version 2, available from the file | |
10 | * COPYING in the main directory of this source tree, or the | |
11 | * OpenIB.org BSD license below: | |
12 | * | |
13 | * Redistribution and use in source and binary forms, with or | |
14 | * without modification, are permitted provided that the following | |
15 | * conditions are met: | |
16 | * | |
17 | * - Redistributions of source code must retain the above | |
18 | * copyright notice, this list of conditions and the following | |
19 | * disclaimer. | |
20 | * | |
21 | * - Redistributions in binary form must reproduce the above | |
22 | * copyright notice, this list of conditions and the following | |
23 | * disclaimer in the documentation and/or other materials | |
24 | * provided with the distribution. | |
25 | * | |
26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
27 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
28 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
29 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
30 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
31 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
32 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
33 | * SOFTWARE. | |
1da177e4 LT |
34 | */ |
35 | ||
36 | #ifndef __IB_MAD_PRIV_H__ | |
37 | #define __IB_MAD_PRIV_H__ | |
38 | ||
1b52fa98 | 39 | #include <linux/completion.h> |
d7b20045 | 40 | #include <linux/err.h> |
1da177e4 | 41 | #include <linux/workqueue.h> |
a4d61e84 RD |
42 | #include <rdma/ib_mad.h> |
43 | #include <rdma/ib_smi.h> | |
1da177e4 LT |
44 | |
45 | ||
46 | #define PFX "ib_mad: " | |
47 | ||
48 | #define IB_MAD_QPS_CORE 2 /* Always QP0 and QP1 as a minimum */ | |
49 | ||
50 | /* QP and CQ parameters */ | |
51 | #define IB_MAD_QP_SEND_SIZE 128 | |
52 | #define IB_MAD_QP_RECV_SIZE 512 | |
b76aabc3 HR |
53 | #define IB_MAD_QP_MIN_SIZE 64 |
54 | #define IB_MAD_QP_MAX_SIZE 8192 | |
1da177e4 LT |
55 | #define IB_MAD_SEND_REQ_MAX_SG 2 |
56 | #define IB_MAD_RECV_REQ_MAX_SG 1 | |
57 | ||
58 | #define IB_MAD_SEND_Q_PSN 0 | |
59 | ||
60 | /* Registration table sizes */ | |
61 | #define MAX_MGMT_CLASS 80 | |
62 | #define MAX_MGMT_VERSION 8 | |
63 | #define MAX_MGMT_OUI 8 | |
64 | #define MAX_MGMT_VENDOR_RANGE2 (IB_MGMT_CLASS_VENDOR_RANGE2_END - \ | |
65 | IB_MGMT_CLASS_VENDOR_RANGE2_START + 1) | |
66 | ||
67 | struct ib_mad_list_head { | |
68 | struct list_head list; | |
69 | struct ib_mad_queue *mad_queue; | |
70 | }; | |
71 | ||
72 | struct ib_mad_private_header { | |
73 | struct ib_mad_list_head mad_list; | |
74 | struct ib_mad_recv_wc recv_wc; | |
24239aff | 75 | struct ib_wc wc; |
1527106f | 76 | u64 mapping; |
1da177e4 LT |
77 | } __attribute__ ((packed)); |
78 | ||
79 | struct ib_mad_private { | |
80 | struct ib_mad_private_header header; | |
81 | struct ib_grh grh; | |
82 | union { | |
83 | struct ib_mad mad; | |
84 | struct ib_rmpp_mad rmpp_mad; | |
85 | struct ib_smp smp; | |
86 | } mad; | |
87 | } __attribute__ ((packed)); | |
88 | ||
f36e1793 JM |
89 | struct ib_rmpp_segment { |
90 | struct list_head list; | |
91 | u32 num; | |
92 | u8 data[0]; | |
93 | }; | |
94 | ||
1da177e4 LT |
95 | struct ib_mad_agent_private { |
96 | struct list_head agent_list; | |
97 | struct ib_mad_agent agent; | |
98 | struct ib_mad_reg_req *reg_req; | |
99 | struct ib_mad_qp_info *qp_info; | |
100 | ||
101 | spinlock_t lock; | |
102 | struct list_head send_list; | |
103 | struct list_head wait_list; | |
6a0c435e | 104 | struct list_head done_list; |
c4028958 | 105 | struct delayed_work timed_work; |
1da177e4 LT |
106 | unsigned long timeout; |
107 | struct list_head local_list; | |
108 | struct work_struct local_work; | |
fa619a77 | 109 | struct list_head rmpp_list; |
1da177e4 LT |
110 | |
111 | atomic_t refcount; | |
1b52fa98 | 112 | struct completion comp; |
1da177e4 LT |
113 | }; |
114 | ||
115 | struct ib_mad_snoop_private { | |
116 | struct ib_mad_agent agent; | |
117 | struct ib_mad_qp_info *qp_info; | |
118 | int snoop_index; | |
119 | int mad_snoop_flags; | |
120 | atomic_t refcount; | |
1b52fa98 | 121 | struct completion comp; |
1da177e4 LT |
122 | }; |
123 | ||
124 | struct ib_mad_send_wr_private { | |
125 | struct ib_mad_list_head mad_list; | |
126 | struct list_head agent_list; | |
d760ce8f | 127 | struct ib_mad_agent_private *mad_agent_priv; |
34816ad9 | 128 | struct ib_mad_send_buf send_buf; |
1527106f RC |
129 | u64 header_mapping; |
130 | u64 payload_mapping; | |
1da177e4 LT |
131 | struct ib_send_wr send_wr; |
132 | struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG]; | |
97f52eb4 | 133 | __be64 tid; |
1da177e4 | 134 | unsigned long timeout; |
4fc8cd49 SH |
135 | int max_retries; |
136 | int retries_left; | |
1da177e4 LT |
137 | int retry; |
138 | int refcount; | |
139 | enum ib_wc_status status; | |
fa619a77 HR |
140 | |
141 | /* RMPP control */ | |
f36e1793 JM |
142 | struct list_head rmpp_list; |
143 | struct ib_rmpp_segment *last_ack_seg; | |
144 | struct ib_rmpp_segment *cur_seg; | |
fa619a77 HR |
145 | int last_ack; |
146 | int seg_num; | |
147 | int newwin; | |
fa619a77 | 148 | int pad; |
1da177e4 LT |
149 | }; |
150 | ||
151 | struct ib_mad_local_private { | |
152 | struct list_head completion_list; | |
153 | struct ib_mad_private *mad_priv; | |
154 | struct ib_mad_agent_private *recv_mad_agent; | |
34816ad9 | 155 | struct ib_mad_send_wr_private *mad_send_wr; |
1da177e4 LT |
156 | }; |
157 | ||
158 | struct ib_mad_mgmt_method_table { | |
159 | struct ib_mad_agent_private *agent[IB_MGMT_MAX_METHODS]; | |
160 | }; | |
161 | ||
162 | struct ib_mad_mgmt_class_table { | |
163 | struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_CLASS]; | |
164 | }; | |
165 | ||
166 | struct ib_mad_mgmt_vendor_class { | |
167 | u8 oui[MAX_MGMT_OUI][3]; | |
168 | struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_OUI]; | |
169 | }; | |
170 | ||
171 | struct ib_mad_mgmt_vendor_class_table { | |
172 | struct ib_mad_mgmt_vendor_class *vendor_class[MAX_MGMT_VENDOR_RANGE2]; | |
173 | }; | |
174 | ||
175 | struct ib_mad_mgmt_version_table { | |
176 | struct ib_mad_mgmt_class_table *class; | |
177 | struct ib_mad_mgmt_vendor_class_table *vendor; | |
178 | }; | |
179 | ||
180 | struct ib_mad_queue { | |
181 | spinlock_t lock; | |
182 | struct list_head list; | |
183 | int count; | |
184 | int max_active; | |
185 | struct ib_mad_qp_info *qp_info; | |
186 | }; | |
187 | ||
188 | struct ib_mad_qp_info { | |
189 | struct ib_mad_port_private *port_priv; | |
190 | struct ib_qp *qp; | |
191 | struct ib_mad_queue send_queue; | |
192 | struct ib_mad_queue recv_queue; | |
193 | struct list_head overflow_list; | |
194 | spinlock_t snoop_lock; | |
195 | struct ib_mad_snoop_private **snoop_table; | |
196 | int snoop_table_size; | |
197 | atomic_t snoop_count; | |
198 | }; | |
199 | ||
200 | struct ib_mad_port_private { | |
201 | struct list_head port_list; | |
202 | struct ib_device *device; | |
203 | int port_num; | |
204 | struct ib_cq *cq; | |
205 | struct ib_pd *pd; | |
206 | struct ib_mr *mr; | |
207 | ||
208 | spinlock_t reg_lock; | |
209 | struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION]; | |
210 | struct list_head agent_list; | |
211 | struct workqueue_struct *wq; | |
212 | struct work_struct work; | |
213 | struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE]; | |
214 | }; | |
215 | ||
fa619a77 HR |
216 | int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr); |
217 | ||
218 | struct ib_mad_send_wr_private * | |
fa9656bb JM |
219 | ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv, |
220 | struct ib_mad_recv_wc *mad_recv_wc); | |
fa619a77 HR |
221 | |
222 | void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr, | |
223 | struct ib_mad_send_wc *mad_send_wc); | |
224 | ||
225 | void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr); | |
226 | ||
227 | void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr, | |
228 | int timeout_ms); | |
229 | ||
1da177e4 | 230 | #endif /* __IB_MAD_PRIV_H__ */ |