usr/src/lib/mpapi/libmpscsi_vhci/common/Initialize.c

   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 }