osm_vendor_mlx_svc.h revision 256281 
1/*
2 * Copyright (c) 2004, 2005 Voltaire, Inc. All rights reserved.
3 * Copyright (c) 2002-2005 Mellanox Technologies LTD. All rights reserved.
4 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses.  You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 *     Redistribution and use in source and binary forms, with or
13 *     without modification, are permitted provided that the following
14 *     conditions are met:
15 *
16 *      - Redistributions of source code must retain the above
17 *        copyright notice, this list of conditions and the following
18 *        disclaimer.
19 *
20 *      - Redistributions in binary form must reproduce the above
21 *        copyright notice, this list of conditions and the following
22 *        disclaimer in the documentation and/or other materials
23 *        provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 *
34 */
35
36#ifndef _OSMV_SVC_H_
37#define _OSMV_SVC_H_
38
39#include <stdlib.h>
40#include <string.h>
41#include <iba/ib_types.h>
42#include <vendor/osm_vendor_mlx_defs.h>
43
44#ifdef __cplusplus
45#  define BEGIN_C_DECLS extern "C" {
46#  define END_C_DECLS   }
47#else				/* !__cplusplus */
48#  define BEGIN_C_DECLS
49#  define END_C_DECLS
50#endif				/* __cplusplus */
51
52BEGIN_C_DECLS
53inline static boolean_t osmv_mad_is_response(IN const ib_mad_t * p_mad)
54{
55	return (ib_mad_is_response(p_mad) ||
56		(p_mad->method == IB_MAD_METHOD_TRAP_REPRESS));
57}
58
59inline static uint8_t osmv_invert_method(IN uint8_t req_method)
60{
61	switch (req_method) {
62	case IB_MAD_METHOD_GET_RESP:
63		/* Not a 1-1 mapping! */
64		return IB_MAD_METHOD_GET;
65
66	case IB_MAD_METHOD_GET:
67		return IB_MAD_METHOD_GET_RESP;
68
69	case IB_MAD_METHOD_SET:
70		return IB_MAD_METHOD_GET_RESP;
71
72	case IB_MAD_METHOD_GETTABLE_RESP:
73		return IB_MAD_METHOD_GETTABLE;
74
75	case IB_MAD_METHOD_GETTABLE:
76		return IB_MAD_METHOD_GETTABLE_RESP;
77
78	case IB_MAD_METHOD_GETMULTI_RESP:
79		/* Not a 1-1 mapping! */
80		return IB_MAD_METHOD_GETMULTI;
81
82	case IB_MAD_METHOD_GETTRACETABLE:
83	case IB_MAD_METHOD_GETMULTI:
84		return IB_MAD_METHOD_GETMULTI_RESP;
85
86	case IB_MAD_METHOD_TRAP:
87		return IB_MAD_METHOD_TRAP_REPRESS;
88
89	case IB_MAD_METHOD_TRAP_REPRESS:
90		return IB_MAD_METHOD_TRAP;
91
92	case IB_MAD_METHOD_REPORT:
93		return IB_MAD_METHOD_REPORT_RESP;
94
95	case IB_MAD_METHOD_REPORT_RESP:
96		return IB_MAD_METHOD_REPORT;
97
98		/*  IB_MAD_METHOD_SEND does not have a response */
99	case IB_MAD_METHOD_SEND:
100		return IB_MAD_METHOD_SEND;
101
102	default:
103		CL_ASSERT(FALSE);
104	}
105
106	return 0;		/* Just make the compiler happy */
107}
108
109inline static boolean_t osmv_mad_is_rmpp(IN const ib_mad_t * p_mad)
110{
111	uint8_t rmpp_flags;
112	CL_ASSERT(NULL != p_mad);
113
114	rmpp_flags = ((ib_rmpp_mad_t *) p_mad)->rmpp_flags;
115	/* HACK - JUST SA and DevMgt for now - need to add BIS and DevAdm */
116	if ((p_mad->mgmt_class != IB_MCLASS_SUBN_ADM) &&
117	    (p_mad->mgmt_class != IB_MCLASS_DEV_MGMT))
118		return (0);
119	return (0 != (rmpp_flags & IB_RMPP_FLAG_ACTIVE));
120}
121
122inline static boolean_t osmv_mad_is_multi_resp(IN const ib_mad_t * p_mad)
123{
124	CL_ASSERT(NULL != p_mad);
125	return (IB_MAD_METHOD_GETMULTI == p_mad->method
126		|| IB_MAD_METHOD_GETTRACETABLE == p_mad->method);
127}
128
129inline static boolean_t osmv_mad_is_sa(IN const ib_mad_t * p_mad)
130{
131	CL_ASSERT(NULL != p_mad);
132	return (IB_MCLASS_SUBN_ADM == p_mad->mgmt_class);
133}
134
135inline static boolean_t osmv_rmpp_is_abort_stop(IN const ib_mad_t * p_mad)
136{
137	uint8_t rmpp_type;
138	CL_ASSERT(p_mad);
139
140	rmpp_type = ((ib_rmpp_mad_t *) p_mad)->rmpp_type;
141	return (IB_RMPP_TYPE_STOP == rmpp_type
142		|| IB_RMPP_TYPE_ABORT == rmpp_type);
143}
144
145inline static boolean_t osmv_rmpp_is_data(IN const ib_mad_t * p_mad)
146{
147	CL_ASSERT(p_mad);
148	return (IB_RMPP_TYPE_DATA == ((ib_rmpp_mad_t *) p_mad)->rmpp_type);
149}
150
151inline static boolean_t osmv_rmpp_is_ack(IN const ib_mad_t * p_mad)
152{
153	CL_ASSERT(p_mad);
154	return (IB_RMPP_TYPE_ACK == ((ib_rmpp_mad_t *) p_mad)->rmpp_type);
155}
156
157inline static boolean_t osmv_rmpp_is_first(IN const ib_mad_t * p_mad)
158{
159	uint8_t rmpp_flags;
160	CL_ASSERT(NULL != p_mad);
161
162	rmpp_flags = ((ib_rmpp_mad_t *) p_mad)->rmpp_flags;
163	return (0 != (IB_RMPP_FLAG_FIRST & rmpp_flags));
164}
165
166inline static boolean_t osmv_rmpp_is_last(IN const ib_mad_t * p_mad)
167{
168	uint8_t rmpp_flags;
169	CL_ASSERT(NULL != p_mad);
170
171	rmpp_flags = ((ib_rmpp_mad_t *) p_mad)->rmpp_flags;
172	return (0 != (IB_RMPP_FLAG_LAST & rmpp_flags));
173}
174
175inline static uint8_t *osmv_mad_copy(IN const ib_mad_t * p_mad)
176{
177	uint8_t *p_copy;
178
179	CL_ASSERT(p_mad);
180	p_copy = malloc(MAD_BLOCK_SIZE);
181
182	if (NULL != p_copy) {
183		memset(p_copy, 0, MAD_BLOCK_SIZE);
184		memcpy(p_copy, p_mad, MAD_BLOCK_SIZE);
185	}
186
187	return p_copy;
188}
189
190/* Should be passed externally from the Makefile */
191/*  #define OSMV_RANDOM_DROP 1 */
192#define OSMV_DROP_RATE   0.3
193
194inline static boolean_t osmv_random_drop(void)
195{
196	srand(1);		/* Pick a new base */
197	return (rand() / (double)RAND_MAX < OSMV_DROP_RATE);
198}
199
200END_C_DECLS
201#endif				/* _OSMV_SVC_H_ */
202