2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
4 * Copyright (c) 2004, 2005, Voltaire, Inc. All rights reserved.
5 * Copyright (c) 2005 Intel Corporation. All rights reserved.
6 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
7 * Copyright (c) 2009 HNR Consulting. All rights reserved.
9 * This software is available to you under a choice of one of two
10 * licenses. You may choose to be licensed under the terms of the GNU
11 * General Public License (GPL) Version 2, available from the file
12 * COPYING in the main directory of this source tree, or the
13 * OpenIB.org BSD license below:
15 * Redistribution and use in source and binary forms, with or
16 * without modification, are permitted provided that the following
19 * - Redistributions of source code must retain the above
20 * copyright notice, this list of conditions and the following
23 * - Redistributions in binary form must reproduce the above
24 * copyright notice, this list of conditions and the following
25 * disclaimer in the documentation and/or other materials
26 * provided with the distribution.
28 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
29 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
31 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
32 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
33 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
34 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
40 #ifndef __IB_MAD_PRIV_H__
41 #define __IB_MAD_PRIV_H__
43 #include <linux/completion.h>
44 #include <linux/err.h>
45 #include <linux/workqueue.h>
46 #include <rdma/ib_mad.h>
47 #include <rdma/ib_smi.h>
48 #include <rdma/opa_smi.h>
50 #define IB_MAD_QPS_CORE 2 /* Always QP0 and QP1 as a minimum */
52 /* QP and CQ parameters */
53 #define IB_MAD_QP_SEND_SIZE 128
54 #define IB_MAD_QP_RECV_SIZE 512
55 #define IB_MAD_QP_MIN_SIZE 64
56 #define IB_MAD_QP_MAX_SIZE 8192
57 #define IB_MAD_SEND_REQ_MAX_SG 2
58 #define IB_MAD_RECV_REQ_MAX_SG 1
60 #define IB_MAD_SEND_Q_PSN 0
62 /* Registration table sizes */
63 #define MAX_MGMT_CLASS 80
64 #define MAX_MGMT_VERSION 0x83
65 #define MAX_MGMT_OUI 8
66 #define MAX_MGMT_VENDOR_RANGE2 (IB_MGMT_CLASS_VENDOR_RANGE2_END - \
67 IB_MGMT_CLASS_VENDOR_RANGE2_START + 1)
69 struct ib_mad_list_head {
70 struct list_head list;
72 struct ib_mad_queue *mad_queue;
75 struct ib_mad_private_header {
76 struct ib_mad_list_head mad_list;
77 struct ib_mad_recv_wc recv_wc;
80 } __attribute__ ((packed));
82 struct ib_mad_private {
83 struct ib_mad_private_header header;
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 delayed_work timed_work;
106 unsigned long timeout;
107 struct list_head local_list;
108 struct work_struct local_work;
109 struct list_head rmpp_list;
112 struct completion comp;
115 struct ib_mad_snoop_private {
116 struct ib_mad_agent agent;
117 struct ib_mad_qp_info *qp_info;
121 struct completion comp;
124 struct ib_mad_send_wr_private {
125 struct ib_mad_list_head mad_list;
126 struct list_head agent_list;
127 struct ib_mad_agent_private *mad_agent_priv;
128 struct ib_mad_send_buf send_buf;
131 struct ib_ud_wr send_wr;
132 struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
134 unsigned long timeout;
139 enum ib_wc_status status;
142 struct list_head rmpp_list;
143 struct ib_rmpp_segment *last_ack_seg;
144 struct ib_rmpp_segment *cur_seg;
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;
155 struct ib_mad_send_wr_private *mad_send_wr;
156 size_t return_wc_byte_len;
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;
209 struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION];
210 struct list_head agent_list;
211 struct workqueue_struct *wq;
212 struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE];
215 int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr);
217 struct ib_mad_send_wr_private *
218 ib_find_send_mad(const struct ib_mad_agent_private *mad_agent_priv,
219 const struct ib_mad_recv_wc *mad_recv_wc);
221 void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr,
222 struct ib_mad_send_wc *mad_send_wc);
224 void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr);
226 void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr,
229 #endif /* __IB_MAD_PRIV_H__ */