xref: /titanic_52/usr/src/uts/common/io/ib/mgt/ibmf/ibmf_mod.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * This file implements the _init(9e), _info(9e) and _fini(9e) functions.
31  */
32 
33 #include <sys/ib/mgt/ibmf/ibmf_impl.h>
34 
35 /* Module Info */
36 static struct modlmisc ibmf_modlmisc = {
37 	&mod_miscops,
38 	"IB Agent Interfaces 2.0"
39 };
40 
41 /* Module linkage */
42 static struct modlinkage ibmf_modlinkage = {
43 	MODREV_1,
44 	&ibmf_modlmisc,
45 	NULL
46 };
47 
48 static ibmf_state_t		ibmf_state;
49 ibmf_state_t			*ibmf_statep;
50 
51 extern int ibmf_init();
52 extern int ibmf_fini();
53 extern int ibmf_saa_impl_init();
54 extern int ibmf_saa_impl_fini();
55 
56 #ifndef	NPROBE
57 extern int tnf_mod_load(void);
58 extern int tnf_mod_unload(struct modlinkage *mlp);
59 #endif
60 
61 int
62 _init()
63 {
64 	int status;
65 
66 	/* CONSTCOND */
67 	ASSERT(NO_COMPETING_THREADS);
68 
69 #ifndef	NPROBE
70 	(void) tnf_mod_load();
71 #endif
72 	ibmf_statep = &ibmf_state;
73 
74 	/*
75 	 * call ibmf_saa_init first so it can set up subnet list before being
76 	 * contacted with ibt_async events
77 	 */
78 	status = ibmf_saa_impl_init();
79 	if (status != IBMF_SUCCESS) {
80 		TNF_PROBE_1(_init_error, IBMF_TNF_ERROR, "", tnf_string, msg,
81 		    "ibmf_saa_impl_init failed");
82 
83 #ifndef	NPROBE
84 		(void) tnf_mod_unload(&ibmf_modlinkage);
85 #endif
86 		return (EACCES);
87 	}
88 
89 
90 
91 	status = ibmf_init();
92 	if (status != 0) {
93 		TNF_PROBE_1(_init_error, IBMF_TNF_ERROR, "", tnf_string, msg,
94 		    "ibmf_init failed");
95 
96 		(void) ibmf_saa_impl_fini();
97 
98 #ifndef	NPROBE
99 		(void) tnf_mod_unload(&ibmf_modlinkage);
100 #endif
101 		return (EACCES);
102 	}
103 
104 	status = mod_install(&ibmf_modlinkage);
105 	if (status != 0) {
106 		TNF_PROBE_2(_init_error, IBMF_TNF_ERROR, "", tnf_string, msg,
107 		    "mod_install failed", tnf_uint, status, status);
108 #ifndef NPROBE
109 		(void) tnf_mod_unload(&ibmf_modlinkage);
110 #endif
111 		(void) ibmf_fini();
112 		ibmf_statep = (ibmf_state_t *)NULL;
113 	}
114 
115 	return (status);
116 }
117 
118 int
119 _info(struct modinfo *modinfop)
120 {
121 	return (mod_info(&ibmf_modlinkage, modinfop));
122 }
123 
124 int
125 _fini()
126 {
127 	int status;
128 	status = mod_remove(&ibmf_modlinkage);
129 	if (status != 0) {
130 		TNF_PROBE_2(_fini_error, IBMF_TNF_ERROR, "", tnf_string, msg,
131 		    "mod_remove failed", tnf_uint, status, status);
132 		return (status);
133 	}
134 
135 	status = ibmf_saa_impl_fini();
136 	if (status != 0) {
137 
138 		TNF_PROBE_2(_fini_error, IBMF_TNF_ERROR, "", tnf_string, msg,
139 		    "ibmf_saa fini failed", tnf_uint, status, status);
140 		return (status);
141 	}
142 
143 	(void) ibmf_fini();
144 	ibmf_statep = (ibmf_state_t *)NULL;
145 #ifndef	NPROBE
146 	(void) tnf_mod_unload(&ibmf_modlinkage);
147 #endif
148 	return (status);
149 }
150