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.
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:
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
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.
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
36 #ifndef __IB_MAD_PRIV_H__
37 #define __IB_MAD_PRIV_H__
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>
46 #define PFX "ib_mad: "
48 #define IB_MAD_QPS_CORE 2 /* Always QP0 and QP1 as a minimum */
50 /* QP and CQ parameters */
51 #define IB_MAD_QP_SEND_SIZE 128
52 #define IB_MAD_QP_RECV_SIZE 512
53 #define IB_MAD_QP_MIN_SIZE 64
54 #define IB_MAD_QP_MAX_SIZE 8192
55 #define IB_MAD_SEND_REQ_MAX_SG 2
56 #define IB_MAD_RECV_REQ_MAX_SG 1
58 #define IB_MAD_SEND_Q_PSN 0
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)
67 struct ib_mad_list_head {
68 struct list_head list;
69 struct ib_mad_queue *mad_queue;
72 struct ib_mad_private_header {
73 struct ib_mad_list_head mad_list;
74 struct ib_mad_recv_wc recv_wc;
77 } __attribute__ ((packed));
79 struct ib_mad_private {
80 struct ib_mad_private_header header;
84 struct ib_rmpp_mad rmpp_mad;
87 } __attribute__ ((packed));
89 struct ib_rmpp_segment {
90 struct list_head list;
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;
102 struct list_head send_list;
103 struct list_head wait_list;
104 struct list_head done_list;
105 struct work_struct timeout_work;
106 struct timer_list timeout_timer;
107 unsigned long timeout;
108 struct list_head local_list;
109 struct work_struct local_work;
110 struct list_head rmpp_list;
113 struct completion comp;
116 struct ib_mad_snoop_private {
117 struct ib_mad_agent agent;
118 struct ib_mad_qp_info *qp_info;
122 struct completion comp;
125 struct ib_mad_send_wr_private {
126 struct ib_mad_list_head mad_list;
127 struct list_head agent_list;
128 struct ib_mad_agent_private *mad_agent_priv;
129 struct ib_mad_send_buf send_buf;
132 struct ib_send_wr send_wr;
133 struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
135 unsigned long timeout;
140 enum ib_wc_status status;
143 struct list_head rmpp_list;
144 struct ib_rmpp_segment *last_ack_seg;
145 struct ib_rmpp_segment *cur_seg;
152 struct ib_mad_local_private {
153 struct list_head completion_list;
154 struct ib_mad_private *mad_priv;
155 struct ib_mad_agent_private *recv_mad_agent;
156 struct ib_mad_send_wr_private *mad_send_wr;
159 struct ib_mad_mgmt_method_table {
160 struct ib_mad_agent_private *agent[IB_MGMT_MAX_METHODS];
163 struct ib_mad_mgmt_class_table {
164 struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_CLASS];
167 struct ib_mad_mgmt_vendor_class {
168 u8 oui[MAX_MGMT_OUI][3];
169 struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_OUI];
172 struct ib_mad_mgmt_vendor_class_table {
173 struct ib_mad_mgmt_vendor_class *vendor_class[MAX_MGMT_VENDOR_RANGE2];
176 struct ib_mad_mgmt_version_table {
177 struct ib_mad_mgmt_class_table *class;
178 struct ib_mad_mgmt_vendor_class_table *vendor;
181 struct ib_mad_queue {
183 struct list_head list;
186 struct ib_mad_qp_info *qp_info;
189 struct ib_mad_qp_info {
190 struct ib_mad_port_private *port_priv;
192 struct ib_mad_queue send_queue;
193 struct ib_mad_queue recv_queue;
194 struct list_head overflow_list;
195 spinlock_t snoop_lock;
196 struct ib_mad_snoop_private **snoop_table;
197 int snoop_table_size;
198 atomic_t snoop_count;
201 struct ib_mad_port_private {
202 struct list_head port_list;
203 struct ib_device *device;
210 struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION];
211 struct list_head agent_list;
212 struct workqueue_struct *wq;
213 struct work_struct work;
214 struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE];
217 int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr);
219 struct ib_mad_send_wr_private *
220 ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv,
221 struct ib_mad_recv_wc *mad_recv_wc);
223 void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr,
224 struct ib_mad_send_wc *mad_send_wc);
226 void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr);
228 void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr,
231 #endif /* __IB_MAD_PRIV_H__ */