xref: /titanic_41/usr/src/lib/mpapi/libmpscsi_vhci/common/Initialize.c (revision c037192b037119c9fd354732fc29b38ce097d356)
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 (the "License").
6  *  You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 
26 #include <sys/stat.h>
27 #include <fcntl.h>
28 #include <errno.h>
29 
30 #include "mp_utils.h"
31 
32 
33 /*
34  *	Global Variables
35  */
36 
37 MP_UINT32	g_pluginOwnerID = 0;
38 int		g_scsi_vhci_fd  = -1;
39 
40 PROPERTY_CALLBACK_NODE   g_Property_Callback_List[MP_OBJECT_TYPE_MAX + 1];
41 VISIBILITY_CALLBACK_NODE g_Visibility_Callback_List[MP_OBJECT_TYPE_MAX + 1];
42 
43 sysevent_handle_t *g_SysEventHandle = NULL;
44 
45 pthread_mutex_t g_visa_mutex = PTHREAD_MUTEX_INITIALIZER;
46 pthread_mutex_t g_prop_mutex = PTHREAD_MUTEX_INITIALIZER;
47 
48 /*
49  *	Called by the common layer to request the plugin to initialize
50  *	itself.
51  */
52 
53 MP_STATUS
54 Initialize(MP_UINT32 pluginOwnerID)
55 {
56 	log(LOG_INFO, "Initialize()", " - enter");
57 
58 
59 	(void) memset(&g_Property_Callback_List, 0,
60 	    sizeof (PROPERTY_CALLBACK_NODE) * (MP_OBJECT_TYPE_MAX + 1));
61 
62 	(void) memset(&g_Visibility_Callback_List, 0,
63 	    sizeof (VISIBILITY_CALLBACK_NODE) * (MP_OBJECT_TYPE_MAX + 1));
64 
65 	/* Attempt to open the driver that this plugin will make request of. */
66 	g_scsi_vhci_fd = open("/devices/scsi_vhci:devctl",
67 	    O_NDELAY | O_RDONLY);
68 
69 	if (g_scsi_vhci_fd < 0) {
70 		log(LOG_INFO, "Initialize()",
71 		    " - failed to open driver.  error is : %s",
72 		    strerror(errno));
73 		log(LOG_INFO, "Initialize()", " - error exit");
74 		return (MP_STATUS_FAILED);
75 	}
76 
77 	g_pluginOwnerID = pluginOwnerID;
78 
79 	log(LOG_INFO, "Initialize()", " - exit");
80 
81 	return (MP_STATUS_SUCCESS);
82 }
83