1/*
2
3 * Copyright (c) 2004, 2005, Voltaire, Inc. All rights reserved.
4 * Copyright (c) 2005 Intel Corporation. All rights reserved.
5 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
6 * Copyright (c) 2009 HNR Consulting. All rights reserved.
7 *
8 * This software is available to you under a choice of one of two
9 * licenses.  You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * OpenIB.org BSD license below:
13 *
14 *     Redistribution and use in source and binary forms, with or
15 *     without modification, are permitted provided that the following
16 *     conditions are met:
17 *
18 *      - Redistributions of source code must retain the above
19 *        copyright notice, this list of conditions and the following
20 *        disclaimer.
21 *
22 *      - Redistributions in binary form must reproduce the above
23 *        copyright notice, this list of conditions and the following
24 *        disclaimer in the documentation and/or other materials
25 *        provided with the distribution.
26 *
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 * SOFTWARE.
35 */
36
37#ifndef __IB_MAD_PRIV_H__
38#define __IB_MAD_PRIV_H__
39/*
40 #include <linux/completion.h>
41 #include <linux/err.h>
42 */
43#include <linux/workqueue.h>
44
45#include <rdma/ib_mad.h>
46#include <rdma/ib_smi.h>
47
48#define PFX "ib_mad: "
49
50#define IB_MAD_QPS_CORE		2  /*Always QP0 and QP1 as a minimum*/
51
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
59
60#define IB_MAD_SEND_Q_PSN	0
61
62/* Registration table sizes*/
63#define MAX_MGMT_CLASS		80
64#define MAX_MGMT_VERSION	8
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)
68
69struct ib_mad_list_head {
70	struct list_head list;
71	struct ib_mad_queue *mad_queue;
72};
73
74struct ib_mad_private_header {
75	struct ib_mad_list_head mad_list;
76	struct ib_mad_recv_wc recv_wc;
77	struct ib_wc wc;
78	u64 mapping;
79}__attribute__ ((packed));
80
81struct ib_mad_private {
82	struct ib_mad_private_header header;
83	struct ib_grh grh;
84	union {
85		struct ib_mad mad;
86		struct ib_rmpp_mad rmpp_mad;
87		struct ib_smp smp;
88	} mad;
89}__attribute__ ((packed));
90
91struct ib_rmpp_segment {
92	struct list_head list;
93	u32 num;
94	u8 data[0];
95};
96
97struct ib_mad_agent_private {
98	struct list_head agent_list;
99	struct ib_mad_agent agent;
100	struct ib_mad_reg_req *reg_req;
101	struct ib_mad_qp_info *qp_info;
102
103	/*spinlock_t lock;*/
104	struct list_head send_list;
105	struct list_head wait_list;
106	struct list_head done_list;
107	struct work_struct timeout_work;
108	/*struct timer_list timeout_timer;*/
109	unsigned long timeout;
110	struct list_head local_list;
111	struct work_struct local_work;
112	struct list_head rmpp_list;
113
114/*atomic_t refcount;
115 struct completion comp;*/
116};
117/*
118 struct ib_mad_snoop_private {
119 struct ib_mad_agent agent;
120 struct ib_mad_qp_info *qp_info;
121 int snoop_index;
122 int mad_snoop_flags;
123 atomic_t refcount;
124 struct completion comp;
125 };
126 */
127struct ib_mad_send_wr_private {
128	struct ib_mad_list_head mad_list;
129	struct list_head agent_list;
130	struct ib_mad_agent_private *mad_agent_priv;
131	struct ib_mad_send_buf send_buf;
132	u64 header_mapping;
133	u64 payload_mapping;
134	struct ib_send_wr send_wr;
135	struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
136	__be64 tid;
137	/*unsigned long timeout;*/
138	int max_retries;
139	int retries_left;
140	int retry;
141	/*int refcount;*/
142	enum ib_wc_status status;
143
144	/*RMPP control*/
145	struct list_head rmpp_list;
146	struct ib_rmpp_segment *last_ack_seg;
147	struct ib_rmpp_segment *cur_seg;
148	int last_ack;
149	int seg_num;
150	int newwin;
151	int pad;
152};
153
154struct ib_mad_local_private {
155	struct list_head completion_list;
156	struct ib_mad_private *mad_priv;
157	struct ib_mad_agent_private *recv_mad_agent;
158	struct ib_mad_send_wr_private *mad_send_wr;
159};
160
161struct ib_mad_mgmt_method_table {
162	struct ib_mad_agent_private *agent[IB_MGMT_MAX_METHODS];
163};
164
165struct ib_mad_mgmt_class_table {
166	struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_CLASS];
167};
168
169struct ib_mad_mgmt_vendor_class {
170	u8 oui[MAX_MGMT_OUI][3];
171	struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_OUI];
172};
173
174struct ib_mad_mgmt_vendor_class_table {
175	struct ib_mad_mgmt_vendor_class *vendor_class[MAX_MGMT_VENDOR_RANGE2];
176};
177
178struct ib_mad_mgmt_version_table {
179	struct ib_mad_mgmt_class_table *class;
180	struct ib_mad_mgmt_vendor_class_table *vendor;
181};
182
183struct ib_mad_queue {
184	spinlock_t lock;
185	struct list_head list;
186	int count;
187	int max_active;
188	struct ib_mad_qp_info *qp_info;
189};
190
191struct ib_mad_qp_info {
192	struct ib_mad_port_private *port_priv;
193	struct ib_qp *qp;
194	struct ib_mad_queue send_queue;
195	struct ib_mad_queue recv_queue;
196	struct list_head overflow_list;
197	/*spinlock_t snoop_lock;*/
198	struct ib_mad_snoop_private **snoop_table;
199	int snoop_table_size;
200/*atomic_t snoop_count;*/
201};
202
203struct ib_mad_port_private {
204	struct list_head port_list;
205	struct ib_device *device;
206	int port_num;
207	struct ib_cq *cq;
208	struct ib_pd *pd;
209	struct ib_mr *mr;
210
211	/*spinlock_t reg_lock;*/
212	struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION];
213	struct list_head agent_list;
214	struct workqueue_struct *wq;
215	struct work_struct work;
216	struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE];
217};
218
219int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr);
220/*
221 struct ib_mad_send_wr_private *
222 ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv,
223 struct ib_mad_recv_wc *mad_recv_wc);
224 */
225void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr,
226		struct ib_mad_send_wc *mad_send_wc);
227/*
228 void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr);
229
230 void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr,
231 int timeout_ms);
232 */
233#endif	 /*__IB_MAD_PRIV_H__*/
234