1 | /* |
2 | * Copyright (c) 2004, 2005, Voltaire, Inc. All rights reserved. |
3 | * Copyright (c) 2005 Intel Corporation. All rights reserved. |
4 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
5 | * Copyright (c) 2009 HNR Consulting. All rights reserved. |
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. |
34 | */ |
35 | |
36 | #ifndef __IB_MAD_PRIV_H__ |
37 | #define __IB_MAD_PRIV_H__ |
38 | |
39 | #include <linux/completion.h> |
40 | #include <linux/err.h> |
41 | #include <linux/workqueue.h> |
42 | #include <rdma/ib_mad.h> |
43 | #include <rdma/ib_smi.h> |
44 | #include <rdma/opa_smi.h> |
45 | |
46 | #define IB_MAD_QPS_CORE 2 /* Always QP0 and QP1 as a minimum */ |
47 | |
48 | /* QP and CQ parameters */ |
49 | #define IB_MAD_QP_SEND_SIZE 128 |
50 | #define IB_MAD_QP_RECV_SIZE 512 |
51 | #define IB_MAD_QP_MIN_SIZE 64 |
52 | #define IB_MAD_QP_MAX_SIZE 8192 |
53 | #define IB_MAD_SEND_REQ_MAX_SG 2 |
54 | #define IB_MAD_RECV_REQ_MAX_SG 1 |
55 | |
56 | #define IB_MAD_SEND_Q_PSN 0 |
57 | |
58 | /* Registration table sizes */ |
59 | #define MAX_MGMT_CLASS 80 |
60 | #define MAX_MGMT_VERSION 0x83 |
61 | #define MAX_MGMT_OUI 8 |
62 | #define MAX_MGMT_VENDOR_RANGE2 (IB_MGMT_CLASS_VENDOR_RANGE2_END - \ |
63 | IB_MGMT_CLASS_VENDOR_RANGE2_START + 1) |
64 | |
65 | struct ib_mad_list_head { |
66 | struct list_head list; |
67 | struct ib_cqe cqe; |
68 | struct ib_mad_queue *mad_queue; |
69 | }; |
70 | |
71 | struct { |
72 | struct ib_mad_list_head ; |
73 | struct ib_mad_recv_wc ; |
74 | struct ib_wc ; |
75 | u64 ; |
76 | } __packed; |
77 | |
78 | struct ib_mad_private { |
79 | struct ib_mad_private_header ; |
80 | size_t mad_size; |
81 | struct ib_grh grh; |
82 | u8 mad[]; |
83 | } __packed; |
84 | |
85 | struct ib_rmpp_segment { |
86 | struct list_head list; |
87 | u32 num; |
88 | u8 data[]; |
89 | }; |
90 | |
91 | struct ib_mad_agent_private { |
92 | struct ib_mad_agent agent; |
93 | struct ib_mad_reg_req *reg_req; |
94 | struct ib_mad_qp_info *qp_info; |
95 | |
96 | spinlock_t lock; |
97 | struct list_head send_list; |
98 | struct list_head wait_list; |
99 | struct list_head done_list; |
100 | struct delayed_work timed_work; |
101 | unsigned long timeout; |
102 | struct list_head local_list; |
103 | struct work_struct local_work; |
104 | struct list_head rmpp_list; |
105 | |
106 | refcount_t refcount; |
107 | union { |
108 | struct completion comp; |
109 | struct rcu_head rcu; |
110 | }; |
111 | }; |
112 | |
113 | struct ib_mad_snoop_private { |
114 | struct ib_mad_agent agent; |
115 | struct ib_mad_qp_info *qp_info; |
116 | int snoop_index; |
117 | int mad_snoop_flags; |
118 | struct completion comp; |
119 | }; |
120 | |
121 | struct ib_mad_send_wr_private { |
122 | struct ib_mad_list_head mad_list; |
123 | struct list_head agent_list; |
124 | struct ib_mad_agent_private *mad_agent_priv; |
125 | struct ib_mad_send_buf send_buf; |
126 | u64 ; |
127 | u64 payload_mapping; |
128 | struct ib_ud_wr send_wr; |
129 | struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG]; |
130 | __be64 tid; |
131 | unsigned long timeout; |
132 | int max_retries; |
133 | int retries_left; |
134 | int retry; |
135 | int refcount; |
136 | enum ib_wc_status status; |
137 | |
138 | /* RMPP control */ |
139 | struct list_head rmpp_list; |
140 | struct ib_rmpp_segment *last_ack_seg; |
141 | struct ib_rmpp_segment *cur_seg; |
142 | int last_ack; |
143 | int seg_num; |
144 | int newwin; |
145 | int pad; |
146 | }; |
147 | |
148 | struct ib_mad_local_private { |
149 | struct list_head completion_list; |
150 | struct ib_mad_private *mad_priv; |
151 | struct ib_mad_agent_private *recv_mad_agent; |
152 | struct ib_mad_send_wr_private *mad_send_wr; |
153 | size_t return_wc_byte_len; |
154 | }; |
155 | |
156 | struct ib_mad_mgmt_method_table { |
157 | struct ib_mad_agent_private *agent[IB_MGMT_MAX_METHODS]; |
158 | }; |
159 | |
160 | struct ib_mad_mgmt_class_table { |
161 | struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_CLASS]; |
162 | }; |
163 | |
164 | struct ib_mad_mgmt_vendor_class { |
165 | u8 oui[MAX_MGMT_OUI][3]; |
166 | struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_OUI]; |
167 | }; |
168 | |
169 | struct ib_mad_mgmt_vendor_class_table { |
170 | struct ib_mad_mgmt_vendor_class *vendor_class[MAX_MGMT_VENDOR_RANGE2]; |
171 | }; |
172 | |
173 | struct ib_mad_mgmt_version_table { |
174 | struct ib_mad_mgmt_class_table *class; |
175 | struct ib_mad_mgmt_vendor_class_table *vendor; |
176 | }; |
177 | |
178 | struct ib_mad_queue { |
179 | spinlock_t lock; |
180 | struct list_head list; |
181 | int count; |
182 | int max_active; |
183 | struct ib_mad_qp_info *qp_info; |
184 | }; |
185 | |
186 | struct ib_mad_qp_info { |
187 | struct ib_mad_port_private *port_priv; |
188 | struct ib_qp *qp; |
189 | struct ib_mad_queue send_queue; |
190 | struct ib_mad_queue recv_queue; |
191 | struct list_head overflow_list; |
192 | spinlock_t snoop_lock; |
193 | struct ib_mad_snoop_private **snoop_table; |
194 | int snoop_table_size; |
195 | atomic_t snoop_count; |
196 | }; |
197 | |
198 | struct ib_mad_port_private { |
199 | struct list_head port_list; |
200 | struct ib_device *device; |
201 | int port_num; |
202 | struct ib_cq *cq; |
203 | struct ib_pd *pd; |
204 | |
205 | spinlock_t reg_lock; |
206 | struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION]; |
207 | struct workqueue_struct *wq; |
208 | struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE]; |
209 | }; |
210 | |
211 | int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr); |
212 | |
213 | struct ib_mad_send_wr_private * |
214 | ib_find_send_mad(const struct ib_mad_agent_private *mad_agent_priv, |
215 | const struct ib_mad_recv_wc *mad_recv_wc); |
216 | |
217 | void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr, |
218 | struct ib_mad_send_wc *mad_send_wc); |
219 | |
220 | void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr); |
221 | |
222 | void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr, |
223 | unsigned long timeout_ms); |
224 | |
225 | #endif /* __IB_MAD_PRIV_H__ */ |
226 | |